Abrégé

A forging press for rotationally asymmetrical parts by warm or hot forming has a stationary press table, a vertically shiftable press ram above the press table, vertically delimiting with the press table a working space, and vertically displaceable between from an upper open position into a lower closed position. An upper part is carried by the ram in the space, and an upper die in the space is in turn carried on the upper part. A lower part sits on the table in the space and below the upper part and carries a lower die in the space and fittable with the upper die in the closed position. A first closing apparatus outside the space bears vertically on one of the dies, and a second closing apparatus outside the space bears vertically via the first closing apparatus on the one die.

Classes IPC  ?

• B21J 9/12 - Entraînements pour presses à forger actionnés hydrauliquement
• B21J 5/02 - MatriçageÉbarbage par utilisation de matrices particulières
• B21J 9/02 - Réalisations ou structures particulières

Abrégé

A tube or metal extrusion press has a stationary press frame formed by a main housing, a counter housing, a billet support carrying a billet holder, and a ram cross-member movable in the press frame between the housings. A piston-cylinder unit has a cylinder on the main housing, a piston in the cylinder, and a ram stem extending between a front end of the piston and the ram cross-member. An equalizing reservoir supplies hydraulic fluid to the piston, and a transfer passage extends between the reservoir and the cylinder rearward of the piston. A fill valve has a displacement sleeve on a rod and carries a ring piston and a fill valve body movable centrally of the cylinder in the transfer passage between an open position in which the passage has a large annular flow cross-section and a closed position in which the valve body blocks the passage.

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal

Abrégé

b) acting from the outside on the solid billet or tubular pre-product and a mandrel (4) carrying a piercing head (3) and engaging from the inside in the tube or tubular pre-product, wherein immediately after the solid billet has been completely pierced by the piercing head a fluidized deoxidation agent and/or an inert gas is supplied to the end of the tube or tubular pre-product facing the roll and is guided through the tube or tubular pre-product into the interior of the tube or tubular pre-product when the mandrel is withdrawn. The invention further relates to a rolling mill for performing the method according to the invention, comprising at least one roll acting from the outside onto the solid billet or tubular pre-product and a mandrel carrying a piercing head and engaging from the inside in the tube or tubular pre-product, wherein a device is provided for feeding and introducing a fluidized deoxidation agent and/or an inert gas to the end of the tube or tubular pre-product facing the at least one roll.

Classes IPC  ?

• B21B 19/04 - Laminage de matériaux de structure pleine, c.-à-d. non évidéePerçage
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
• B21B 45/04 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour décaper, p. ex. décalaminer
• B21B 25/00 - Mandrins pour laminoirs de tubes métalliques, p. ex. mandrins des types utilisés pour les procédés prévus dans le groupe Accessoires qui leur sont associés
• B21B 23/00 - Laminage des tubes, non limité à l'un des procédés prévus dans un seul des groupes , p. ex. par procédés combinés

Abrégé

The invention relates to a machine for machining the ends of pipes which, for control purposes, is assigned at least one computer unit and in the case of which the tools (13) are arranged displaceably such that they can engage radially in relation to the pipe in a tool head (11) which is driven by a motor (4) via a main spindle (10) guided through a headstock (6), the tool head rotating coaxially about the fixedly clamped pipe end, wherein the tools are arranged in tool holders in the form of slides (14A, 14B; 15A, 15B; 16A, 16B) and adjacent slides together mesh with a toothed wheel which is formed with weight compensation. According to the invention, the tool head (11) is formed with integrated advance motors (17) assigned to the slides (14A, 14B; 15A, 15B; 16A, 16B), and each slide is assigned a measuring device (24).

Classes IPC  ?

• B23B 29/24 - Porte-outils pour plusieurs outils de coupe, p. ex. tourelles
• B23B 5/16 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour biseauter, chanfreiner, ou ébavurer les extrémités de barres ou de tubes
• B23B 3/26 - Machines ou dispositifs à tourner à têtes porte-outils rotatives dont les outils effectuent un mouvement radialTêtes porte-outils rotatives appropriées
• B23G 1/52 - Équipement ou accessoires spécialement conçus pour les machines ou dispositifs à fileter pour usiner des tuyaux ou des tubes
• B23B 29/00 - Porte-outils pour outils de coupe non rotatifsBarres ou têtes d'alésageAccessoires des porte-outils

Abrégé

The invention relates to a method and a device for optically measuring the interior of a seamless pipe which is manufactured by rolling or of a pipe which is welded with a longitudinal seam and is manufactured from sheet-metal plates shaped to form half-shells or from a shaped sheet-metal plate or from a metal strip which is unwound from a coil, comprising a sensor means (9) which emits a laser beam (10) in the interior of the pipe (3). In such a method and device, an internal measurement of seamless pipes or pipes which are welded with a longitudinal seam is to be provided with which it is easily possible to determine and model precisely the ovalness and straightness of the pipe (3) in a station. For this purpose there is provision that the sensor means (9) is moved horizontally through the pipe (3), wherein the internal contour (15) of the pipe (3) is measured in that a laser tracker (12) which is positioned at the end of the travel path follows, with its laser beam (13), the respective position of the sensor means (9) in the space of the pipe (3) and senses deviations of the sensor means (9) from straightness.

Classes IPC  ?

• G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
• G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie
• B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
• G01B 11/12 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des diamètres des diamètres intérieurs
• G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
• G01S 17/88 - Systèmes lidar, spécialement adaptés pour des applications spécifiques
• G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
• G01B 11/14 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la distance ou la marge entre des objets ou des ouvertures espacés
• G01S 17/66 - Systèmes de poursuite utilisant d'autres ondes électromagnétiques que les ondes radio

Abrégé

The invention relates to extrusion and pipe presses (1), comprising a press frame consisting of a cylindrical spar (2) and a counter spar (4) connected thereto, in which a mobile billet container holder (7) supporting a billet container (8), which puts a billet (18) to be pressed, which was introduced by a loading device, into a press position in front of the counter spar (4) with the associated tool (38), and a mobile punch crosshead (6) are provided. In the cylindrical spar (2), a main cylinder, or press cylinder, is arranged, which in the cylinder housing (9) thereof receives a press piston (11), which at the front end thereof that is supported by the punch crosshead (6) is connected to a press punch (19). A compensation tank (15), which delivers hydraulic oil to the press piston (11) by way of a slider plate (28), is assigned to a main cylinder housing (9) connected to a tank line. With an extrusion press such as this, the considerable hydraulic expenditure, and in particular the non-productive time, are to be substantially reduced, while making the structural design more compact and simple at the same time. To accomplish this, the advancing and feed motions of the billet container holder (7) and punch crosshead (6) with press piston (11) are carried out by electromotive force, and both the precompression of the billet (18) loaded into the billet container (8) and the subsequent compression of the billet (18) are done by hydraulic loading of the press piston (11). Electric motors (12, 13) are assigned to the punch crosshead (6) and the billet container holder (7) as adjustment drives. A large-scale filling valve (20) is integrated in the cylinder housing (9) of the main cylinder for loading the press piston (11).

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal

Abrégé

The invention relates to a four-die press tool (1), comprising a lower die assembly (4) and an upper die assembly (6) displaceable relative thereto, comprising four rams (10, 11, 12, 13) spaced apart and supported on the lower die assembly (4) or the upper die assembly (6) and carrying forging dies (29), and a ring (20) on which are mounted the four rams (10, 11, 12, 13) concentrically around the central press axis (28) of the four-die press tool (1) in such a way that they can be displaced relative to the central press axis (28) whenever the upper die assembly (6) is moved relative to the lower die assembly (4), wherein protecting means (35) are mounted on the ring (20) to secure a workpiece in a centered position on a central predetermined position of the workpiece relative to the central press axis (28) independently of a workpiece manipulator.

Classes IPC  ?

• B21J 9/06 - Presses à estamperPresses à refouler
• B21J 13/08 - Accessoires pour la manipulation des pièces ou des outils
• B21J 13/02 - Matrices ou leurs montures
• B21J 7/14 - Machines à forger travaillant avec plusieurs marteaux

Abrégé

The invention relates to a hot work tool, especially a rolling rod consisting of a heat-resistant material, for producing seamless pipes. The aim of the invention is to provide a rolling rod which has a longer service life and is economical to produce. For this purpose, the rolling rod consists of individual core rod segments stringed together, which are connected to each other to form a total length of the rolling rod.

Classes IPC  ?

• B21B 25/00 - Mandrins pour laminoirs de tubes métalliques, p. ex. mandrins des types utilisés pour les procédés prévus dans le groupe Accessoires qui leur sont associés

Abrégé

a, b, c).

Classes IPC  ?

• B23B 31/16 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement déplaçables radialement
• B23B 31/12 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement

Abrégé

The invention relates to a method for producing a tube (2) or tubular pre-product from a solid billet in a rolling mill, comprising at least one roll (5a, 5b) acting from the outside on the solid billet or tubular pre-product and a mandrel (4) carrying a piercing head (3) and engaging from the inside in the tube or tubular pre-product, wherein immediately after the solid billet has been completely pierced by the piercing head a fluidized deoxidation agent and/or an inert gas is supplied to the end of the tube or tubular pre-product facing the roll and is guided through the tube or tubular pre-product into the interior of the tube or tubular pre-product when the mandrel is withdrawn. The invention further relates to a rolling mill for performing the method according to the invention, comprising at least one roll acting from the outside onto the solid billet or tubular pre-product and a mandrel carrying a piercing head and engaging from the inside in the tube or tubular pre-product, wherein a device is provided for feeding and introducing a fluidized deoxidation agent and/or an inert gas to the end of the tube or tubular pre-product facing the at least one roll.

Classes IPC  ?

• B21B 19/04 - Laminage de matériaux de structure pleine, c.-à-d. non évidéePerçage
• B21B 45/04 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour décaper, p. ex. décalaminer

Abrégé

The invention relates to a method and a device for optically measuring the interior of a seamless pipe which is manufactured by rolling or of a pipe which is welded with a longitudinal seam and is manufactured from sheet-metal plates shaped to form half-shells or from a shaped sheet-metal plate or from a metal strip which is unwound from a coil, comprising a sensor means (9) which emits a laser beam (10) in the interior of the pipe (3). In such a method and device, an internal measurement of seamless pipes or pipes which are welded with a longitudinal seam is to be provided with which it is easily possible to determine and model precisely the ovalness and straightness of the pipe (3) in a station. For this purpose there is provision that the sensor means (9) is moved horizontally through the pipe (3), wherein the internal contour (15) of the pipe (3) is measured in that a laser tracker (12) which is positioned at the end of the travel path follows, with its laser beam (13), the respective position of the sensor means (9) in the space of the pipe (3) and senses deviations of the sensor means (9) from straightness.

Classes IPC  ?

• B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
• G01B 11/12 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des diamètres des diamètres intérieurs
• G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
• G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie
• B23K 9/095 - Surveillance ou commande automatique des paramètres de soudage

Abrégé

The invention relates to a machine (1) for machining pipe ends. At least one centering device (8; 35) is associated to said machine, which centering device centers a tubular workpiece (5, 5') in relation to an axis of rotation (D) of the machine for machining pipe ends extending in the center of the machine, the tubular workpiece either being stationary in the case of a rotating tool head (4) or rotating in the case in which the tubular workpiece is fastened in the machine chuck (9). Precise centering of the tubular workpiece (5, 5') is quickly and simply achieved in that the centering device (8; 35) has a clamping housing (13; 130) that is open toward the axis of rotation (D), which clamping housing is designed comprising at least three means (14, 15, 16; 140, 150, 160) for contacting the tubular workpiece at the outer circumference and for clamping the tubular workpiece (5, 5') in a centered manner, which means are circumferentially distributed and adjust mechanically independently of each other to the particular diameter of the workpiece (5, 5') to be machined.

Classes IPC  ?

• B23B 25/06 - Équipement de mesure, de calibrage ou de réglage sur les machines à tourner pour la mise en place, l'avance, la commande ou le contrôle des outils de coupe ou de la pièce à usiner
• B23Q 3/18 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine pour positionner uniquement
• B23Q 1/76 - LunettesAppuis
• B23B 5/16 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour biseauter, chanfreiner, ou ébavurer les extrémités de barres ou de tubes
• B23B 31/12 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement
• B23B 5/08 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour tourner des essieux, barres, tiges, tubes, cylindresTournage sans centre

Abrégé

If a mandrel (6) for extruding metal pipes, having two axially offset pressing surfaces (63; 64) with different radial embossing and having a transition region (66) between these two pressing surfaces (63; 64) has a support surface (62) in the transition region (66) then the negative effect of narrowing, which arises owing to the mandrel (6) shifting from a first pressing position, in which the first (63) of the two pressing surfaces interacts with a die, to a second pressing position, in which the second pressing surface (64) interacts with the die, can be minimised.

Classes IPC  ?

• B21C 23/08 - Fabrication de fils, de barres, de tubes
• B21C 23/20 - Fabrication de produits non revêtus par extrusion inversée
• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal
• B21C 25/08 - Matrices ou mandrins à ouverture variable pendant l'extrusion, p. ex. pour faire des pièces coniquesCommande de l'ouverture

Abrégé

The invention relates to a system for stitch welding seam heat sealed pipes (2) made of sheet panels, particularly thick sheet panels, which are shaped to form half-shells (2a, 2b). For each half-shell (2a; 2b) a linear transport path (7) is formed, which paths extend in parallel with, and spaced apart from, each other, and are provided with means for guiding in a supported manner, for pivoting together and for centring the half-shells (2a; 2b) which are pivoted with respect to each other. Two such half-shells (2a, 2b) are connected together by means of stitch welding on the seams thereof resulting from the longitudinal edges lying opposite each other, for which purpose a welding machine (4) is provided.

Classes IPC  ?

• B21C 37/08 - Fabrication de tubes à joints soudés ou brasés
• B21C 37/083 - Alimentation en matériau en bandes, ou opérations combinées avec cette alimentation

Abrégé

A workpiece-shaping tool assembly has a drive shaft having an outer end centered on and rotatable about an axis and a tool fittable with the end of the drive shaft. A torque coupling is formed by shaft splines formed on the drive shaft and tool splines formed on the tool, complementary to the shaft splines, and interfitting with the shaft splines. A radial-force coupling is formed by an inner cylindrical shaft surface formed on the shaft axially offset from the shaft splines and centered on the axis and a respective inner cylindrical tool surface formed on the tool offset from the tool splines, centered on the axis, and radially juxtaposed and engageable with the inner shaft surface.

Classes IPC  ?

• B21B 35/14 - Broches d'accouplement ou d'entraînement, ou supports de broches spécialement adaptés aux laminoirs ou spécialement disposés dans ceux-ci
• B21B 13/00 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires

Abrégé

The invention relates to a hydraulic extrusion press comprising at least one ram, the ram being driven by means of hydraulic oil from a main line (1) and a hydraulic control pressure being used to control the extrusion press. To minimise non-productive periods, the control pressure is also supplied to the main line.

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal
• B21C 31/00 - Dispositifs de commande pour extrusion du métal, p. ex. pour réguler la vitesse d'extrusion ou la température du métalDispositifs de mesure, p. ex. pour la température du métal, combinés à des presses d'extrusion ou spécialement adaptés pour être utilisés en association avec ces presses

Abrégé

The invention relates to a method and a device for longitudinal seam welding of profiled tubes on a tube welding system which is connected to a system computer for process control, and to which a slotted tube (5) formed directly in line from a metal strip in a roll forming mill, or a slotted tube shaped from at least one sheet metal panel is supplied, in particular, for welding the longitudinal seam or the longitudinal seams, wherein the tube welding machine is equipped with a means (12) for measuring the temperature of the welding point which is effective at the narrowest location and is occupied by the metal edges of the slotted tube pressed together by means of rollers (8) to form a gap with a tapering V shape. The longitudinal seam welding can be optimised in that temperature fluctuations and shifting of the welding point can be detected by a thermal imaging camera (12) directed onto the vertex of the convergent V-shaped gap with the longitudinal seam being formed, wherein the continuously measured data are processed in the system computer (7) for regulating the welding process in such a way that the welding point (11) at the hottest degree of effectiveness thereof is always located at the same position.

Classes IPC  ?

• B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
• B23K 13/08 - Circuits électriques d'alimentation ou de commande à cet effet
• B23K 13/02 - Soudage de joints continus
• B23K 13/04 - Soudage par chauffage au moyen d'un courant haute fréquence par chauffage par conduction

Abrégé

An apparatus for making a cold-pilger-rolled tube has two grooved pilger rolls rotatable about respective axes to compress a workpiece moving in a travel direction against a mandrel extending in the direction between a nip formed between the rolls and anchored upstream of the nip in a thrust block. Workpiece thickness is adjusted on the fly by measuring a wall thickness of the workpiece downstream in the direction from the roll as the workpiece passes through the nip and for displacing the thrust block and mandrel in to the travel direction as the workpiece passes through the nip in accordance with the measured wall thickness.

Classes IPC  ?

• B21B 21/04 - Mécanismes d'avance pour mouvement à pas de pèlerin
• B21B 21/00 - Laminage des tubes par mouvement à pas de pèlerin
• B21B 37/78 - Commande de laminoirs à tubes
• B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
• B21B 38/04 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'épaisseur, la largeur, le diamètre ou d'autres dimensions transversales du produit
• B21B 25/02 - Guides, supports ou butées pour mandrins, p. ex. chariotsDispositifs de réglage pour mandrins

Abrégé

A tapered roll stand for making seamless pipe has a stationary frame formed relative to a workpiece-travel direction with a pair of laterally and horizontally oppositely open windows. Respective cover doors carried on the frame are vertically shiftable between respective closed positions covering the respective windows and open positions offset therefrom and exposing the respective windows. A pair of tapered rolls are each shiftable horizontally through a respective one of the windows into a use position inside the frame, lying to a respective horizontal side of the direction, and rotatable about a respective axis forming an acute angle with the direction. A pair of Diescher disks are vertically engageable with a workpiece extending in the direction between the tapered rolls, and respective roll-positioning actuators carried on the doors are couplable with the tapered rolls in the use position for setting positions of the tapered rolls.

Classes IPC  ?

• B21B 31/10 - Changement des cylindres, des supports de cylindres ou des châssis par déplacement horizontal
• B21B 19/02 - Laminage des tubes par des cylindres disposés à l'extérieur de la pièce travaillée et n'ayant pas leurs axes perpendiculaires à l'axe des pièces travaillées les axes des cylindres étant disposés obliquement par rapport à l'axe des pièces travaillées, p. ex. laminage à cylindres croisés

Abrégé

The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece (26) which rotates about a rotational axis that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate, and bear chucking jaws (8a, b, c). Such a chuck is intended to be created with improved operating characteristics and extension to all chucking functions. To this end, for the external central chucking of a tube (26), there are provided centring slides (27a, b, c) which can be disengaged from the chuck head plate with a forward inclination towards the end of the tube to be machined and centre the tube by means of chucking claws (29) which are arranged at the front, free end of centring slide rods (28), said centring slides (27a, b, c) engaging via a toothed rod section (34) into a toothing (35) of a drive means assigned to each centring slide, and meshing for their part, on a toothing side (37) parallel to the side with the toothing, with a central toothed wheel (33) arranged concentrically with the rotational axis, wherein the central toothed wheel (33) synchronizes the movements of all the centring slides (27a, b, c).

Classes IPC  ?

• B23B 31/16 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement déplaçables radialement
• B23B 31/12 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement

Abrégé

The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece which rotates about a rotational axis (4) that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis (4) in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate (2), and bear chucking jaws (8a, b, c). The operating characteristics for the central and/or balancing chucking of a tube are improved when each chucking slide (7a, b, c) is assigned firstly transverse slides (9a, b, c) which are provided tangentially to the rotational axis (4) in the head plate (2), are acted upon by an adjusting means and have a slide block (11) formed as a rack (12) on a longitudinal side, and secondly separate toothed wheels (19a, b, c) which mesh with the racks (12), wherein each chucking slide (7a, b, c) is provided on its underside with a driving claw (17) which, in order to deflect the movement of the transverse slide (9a, b, c) in an adjusting movement, extending at right angles to the rotational axis (4), of the chucking slide (7a, b, c), is in engagement with a slot-like guide groove (16) provided in the slide block (11) of the transverse slide (9a, b, c), and wherein the toothed wheels (19a, b, c) are assigned a coupling pinion (20) that can be engaged and disengaged axially with respect to the rotational axis.

Classes IPC  ?

• B23B 31/16 - Mandrins avec mors à action simultanée, qu'ils soient ou non réglables individuellement déplaçables radialement

Abrégé

The invention relates to an extrusion press or tube press (1), in particular for aluminium or aluminium alloys, comprising a press frame which consists of a cylinder bar and a counter bar (3) connected thereto, and in which a moving bar and a moving block receiver (2) are arranged, the moving block receiver being formed to move a block to be pressed, introduced with a loading device, into a compression position in front of the counter bar (3) having a die, characterised in that a shearing device (4) is provided for separating a butt remaining after the extrusion process, and the shearing device (4) is vertically and horizontally movable on the extrusion frame. The invention further relates to a method for separating a butt during extrusion and tube extrusion using an extrusion press or tube press according to the invention.

Classes IPC  ?

• B21C 35/04 - Coupage ou enlèvement des déchets

Abrégé

The invention relates to extrusion and pipe presses (1), comprising a press frame consisting of a cylindrical spar (2) and a counter spar (4) connected thereto, in which a mobile billet container holder (7) supporting a billet container (8), which puts a billet (18) to be pressed, which was introduced by a loading device, into a press position in front of the counter spar (4) with the associated tool (38), and a mobile punch crosshead (6) are provided. In the cylindrical spar (2), a main cylinder, or press cylinder, is arranged, which in the cylinder housing (9) thereof receives a press piston (11), which at the front end thereof that is supported by the punch crosshead (6) is connected to a press punch (19). A compensation tank (15), which delivers hydraulic oil to the press piston (11) by way of a slider plate (28), is assigned to a main cylinder housing (9) connected to a tank line. With an extrusion press such as this, the considerable hydraulic expenditure, and in particular the non-productive time, are to be substantially reduced, while making the structural design more compact and simple at the same time. To accomplish this, the advancing and feed motions of the billet container holder (7) and punch crosshead (6) with press piston (11) are carried out by electromotive force, and both the pre-compression of the billet (18) loaded into the billet container (8) and the subsequent compression of the billet (18) are done by hydraulic loading of the press piston (11). Electric motors (12, 13) are assigned to the punch crosshead (6) and the billet container holder (7) as adjustment drives. A large-scale filling valve (20) is integrated in the cylinder housing (9) of the main cylinder for loading the press piston (11).

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal

Abrégé

The invention relates to an extruder and tube extruder or metal extrusion press (1) having a press frame consisting of a cylinder bar (2) and a counter bar (4) connected thereto, in which a movable block receiver holder (7) supporting a block receiver (8) and a movable plunger traverse (6) are provided, wherein a main or pressing cylinder arranged in the cylinder bar (2) holds in its cylinder housing (9) a pressing piston (11) that is supported at its front end by the plunger traverse (6) and is furnished with a pressing plunger (18), and wherein the cylinder housing (9) connected to a tank line is associated with a compensation container (15) supplying the pressing piston (11) with hydraulic oil by means of a pusher plate (22) provided on a connecting rod (23) connected to the rear end of the pressing piston (11), wherein the connecting rod (23) extending in the compensation container (15) is connected to a hydraulic supply arranged upstream of the pusher plate (22) in the pressing direction (14). The considerable hydraulic expense for such an extruder, and in particular the downtime, is to be markedly reduced or shortened, with a simultaneously compact and simple construction. For this purpose the connecting rod (23) is constructed with an integrated filling valve (19) provided in the transition from the compensation container (15) to the main cylinder, adapted to the inside diameter of the cylinder housing (9) there and exposing a large annular cross-sectional area when it opens.

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal

Abrégé

The invention relates to a method and an installation for continuously shaping longitudinally slotted pipes (10) from a flat material, in which markings in the material can be minimised or avoided if the rolling forces of at least two rolls (40) acting successively on the flat material are evenly introduced into the roll stand and/or the two successively acting rolls (40) can be freely adjusted relative to one another.

Classes IPC  ?

• B21C 37/083 - Alimentation en matériau en bandes, ou opérations combinées avec cette alimentation
• B21D 5/12 - Cintrage des tôles le long de lignes droites, p. ex. pour former un pli simple par un procédé d'étirage dans lequel les pièces à travailler sont mises en forme par passage entre des matrices ou des rouleaux, p. ex. fabrication de profilés pour fabriquer des tubes utilisant des rouleaux de formage

Abrégé

Disclosed is a rolling mill, in particular a rolling mill having more than one mill stand, comprising at least two rolls (30) which are mounted in a roll bearing in a mill stand to absorb rolling forces, further comprising means (40) for moving at least one roll relative to the mill stand as well as means (50) for determining the roll pass, said determining means having a pass reference (54) and a spatial reference (56) as well as means (58) for measuring the relative position between the pass reference and the spatial reference. In order to create a rolling mill that provides as accurate information as possible about the roll pass, the pass reference and/or the spatial reference is/are arranged peripherally in relation to the power flow occurring between the roll and the mill stand.

Classes IPC  ?

• B21B 38/10 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'écartement des cylindres, p. ex. indicateurs de l'emprise

Abrégé

In order to create a rolling mill, in particular a rolling mill having more than one mill stand, comprising at least two rolls (30) which are mounted in a roll bearing in a mill stand to absorb rolling forces, further comprising means (40) for moving at least one roll relative to the mill stand as well as means (50) for determining the roll pass, said determining means having a pass reference and a spatial reference as well as means for measuring the relative position between the pass reference and the spatial reference, the rolling mill providing as accurate information as possible about the roll pass, the measuring means are designed in a contactless manner.

Classes IPC  ?

• B21B 38/10 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'écartement des cylindres, p. ex. indicateurs de l'emprise

Abrégé

The invention relates to a method for determining the rolling or guiding gap of the roll stands or guide stands in a multi-stand rolling mill, wherein a comparison scale (40) is positioned at at least one stand, preferably at the first and the last stand, and subsequently the rolling or guiding gap of the respective stand is determined. In said method, a camera (60) is arranged at one of the input or output sides and a transmitter (35) for reference means, a reference transducer and/or a reference scale is arranged at the other of the input or output sides before the comparison scale (40) is positioned, such that adjustment operations at the camera can subsequently be avoided.

Classes IPC  ?

• B21B 38/10 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'écartement des cylindres, p. ex. indicateurs de l'emprise

Abrégé

The invention relates to a transport device (1) for workpieces (2) which have a longitudinal axis (L), in particular for pipes or for round stock, by way of which transport device (1) the workpieces (2) can be conveyed from a first location (3) to a second location (4) in a conveying direction (F) transversely with respect to their longitudinal axis (L), wherein the transport device (1) has: at least two stationary storage carriers (5, 6) which are arranged spaced apart in the conveying direction (F) for the intermediate storage of the workpieces (2) to be conveyed, at least one first conveying rack (7) with a number of storage surfaces (8) which are spaced apart in a conveying direction (F) for the workpieces (2), at least two drive shafts (9, 10) which are arranged parallel to one another and are driven synchronously, and at least two first rocker arms (11, 12), wherein each first rocker arm (11, 12) is connected fixedly to a drive shaft (9, 10) so as to rotate with it and in an articulated manner to the first conveying rack (7). In order to achieve a shortened transport time and therefore higher productivity of the system, the proposed transport device is characterized by at least one second conveying rack (13) having at least one storage surface (14) for the workpieces (2), wherein the second conveying rack (13) is connected via two second rocker arms (15, 16) to the drive shafts (9, 10), wherein each second rocker arm (15, 16) is connected fixedly to a drive shaft (9, 10) so as to rotate with it and in an articulated manner to the second conveying rack (13), and wherein the second rocker arms (15, 16) are arranged on the respective drive shaft (9, 10) with an offset angle (a) in the circumferential direction relative to the first rocker arms (11, 12).

Classes IPC  ?

• B23Q 7/00 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage
• B65G 25/02 - Transporteurs comportant un porte-charges ou un impulseur à mouvement cyclique, p. ex. à va-et-vient, désengagé de la charge pendant le mouvement de retour le porte-charges ou l'impulseur ayant des courses aller et retour différentes, p. ex. transporteurs à balancier

Abrégé

In order to shorten set-up times, a press for producing a moulded part from pourable material, having an apparatus for driving a die comprising a cylinder unit having a cylinder housing and having a cylinder piston is proposed, wherein the cylinder housing is the actuator of the cylinder unit and the cylinder piston is the stator of the cylinder unit.

Classes IPC  ?

• B30B 11/02 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes utilisant un pilon exerçant une pression sur le matériau dans une cavité de moulage
• B30B 15/02 - MatricesGarnitures ou montures appropriéesMoules

Abrégé

The invention relates to a roll stand (1) as a constituent part of a roll stand group (2) in a high-speed wire mill, having at least one roll pair or roll ring pair (5) and a drive shaft (7) which is connected to a motor (6), characterized in that each roll stand (1) of this roll stand group (2) is assigned a motor (6) and a drive shaft (7), and the motor (6), the drive shaft (7) and the at least one roll pair or roll ring pair (5) are arranged linearly with respect to one another.

Classes IPC  ?

• B21B 35/04 - Entraînement des laminoirs pour laminoirs à fonctionnement continu chaque cage ayant son ou ses propres moteurs
• B21B 1/18 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du fil métallique ou un matériau semblable de petite section selon un processus continu
• B21B 13/00 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires

Abrégé

The invention relates to a device for shaping flat products (1) into slit pipes or primary pipe products (2), comprising at least one internal shaping tool (3) for the at least stepwise shaping of the flat product (1) in the radial direction of the cross-section of the slit pipe or primary pipe product to be produced, and at least one external shaping tool (4) for shaping the flat product (1) from the exterior, characterised in that at least one light source (7) and at least one receiver (8) for measuring at least the internal contour of the slit pipe or primary pipe product are connected to at least one internal shaping tool (3). The invention further relates to a method for shaping flat products (1) into slit pipes or primary pipe products (2), with at least one internal shaping tool (3) for shaping the flat product (1) in the radial direction of the cross-section of the slit pipe or primary pipe product to be produced, and at least one external shaping tool (4) for shaping the flat product (1) from the exterior, characterised in that at least one light source (7) and at least one receiver (8) are connected to at least one internal shaping tool (3) and detect the local contour or shape of the shaped flat product (1) at least during the shaping process.

Classes IPC  ?

• B21C 37/08 - Fabrication de tubes à joints soudés ou brasés
• B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
• B21D 5/01 - Cintrage des tôles le long de lignes droites, p. ex. pour former un pli simple entre des marteaux et des enclumes ou butées

Abrégé

The invention relates to a machine for machining the ends of pipes which, for control purposes, is assigned at least one computer unit and in the case of which the tools (13) are arranged displaceably such that they can engage radially in relation to the pipe in a tool head (11) which is driven by a motor (4) via a main spindle (10) guided through a headstock (6), the tool head rotating coaxially about the fixedly clamped pipe end, wherein the tools are arranged in tool holders in the form of slides (14A, 14B; 15A, 15B; 16A, 16B) and adjacent slides together mesh with a toothed wheel which is formed with weight compensation. According to the invention, the tool head (11) is formed with integrated advance motors (17) assigned to the slides (14A, 14B; 15A, 15B; 16A, 16B), and each slide is assigned a measuring device (24).

Classes IPC  ?

• B23B 3/26 - Machines ou dispositifs à tourner à têtes porte-outils rotatives dont les outils effectuent un mouvement radialTêtes porte-outils rotatives appropriées
• B23B 5/16 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour biseauter, chanfreiner, ou ébavurer les extrémités de barres ou de tubes

Abrégé

A device for winding an elongate member into a coil includes at least one first body portion adapted to rotate about a first axis; at least one fixing device for fixing a portion of an elongate member to the at least one first body portion; and at least one force applicator for applying a force to the elongate member. The force includes first and second force components acting in perpendicular first and second directions respectively, in order to restrict movement of the elongate member in directions parallel with the first and said second directions. The first force component acts towards the first body portion to which the elongate member is fixed.

Classes IPC  ?

• B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
• B21C 47/32 - Pinces ou dispositifs d'accrochage spécialement adaptés aux opérations d'enroulement
• B65H 57/00 - Guides pour matériau filiformeSupports à cet effet
• B21C 47/06 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile avec des rouleaux ou des chevilles d'appui ou des moyens équivalents maintenant le matériau sur la bobine ou le tambour
• B21C 47/34 - Dispositifs d'alimentation ou de guidage non spécialement adaptés à un type particulier d'appareil
• B65H 54/28 - Dispositifs de va-et-vientDispositions pour la mise en forme des paquets

Abrégé

A strapping head having a feed unit (FE) for advancing a strap downstream and tensioning the strap around an object to be strapped and a crimp unit (CR) downstream of the feed unit for crimping two sections of the strap to each other has for each of the units an electric drive motor (5,16). In addition the head is provided with an electronic programmable controller (1) connected to both of the units for operating same in accordance with a resettable program.

Classes IPC  ?

• B65B 27/06 - Mise en paquets de rouleaux de fil métallique ou d'objets annulaires analogues
• B65B 27/10 - Mise en paquets de tiges, barres ou objets allongés analogues

Abrégé

In order to minimize the setup times in the case of an indirect extrusion press in which a shell (15) of residual material is formed during the extrusion, having a tool head which comprises a die (19) and is arranged on an indirect punch (2), the tool head (5) is formed such that, after a shearing ring (20) that has a shearing edge, it tapers in the direction of the ejection plane. The invention also relates to other indirect extrusion presses and to methods for indirect extrusion.

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal
• B21C 25/02 - Matrices
• B21C 35/04 - Coupage ou enlèvement des déchets

Abrégé

In a powder press, a spacer that is effective between a die plate and an opposite yoke is integrated into the die plate, particularly if the die plate is provided in an adapter, thus increasing the reliability of set-up processes.

Classes IPC  ?

• B30B 11/02 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes utilisant un pilon exerçant une pression sur le matériau dans une cavité de moulage
• B30B 15/28 - Dispositions pour empêcher la déformation ou l'avarie des presses ou des parties de presses
• B30B 11/04 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes utilisant un pilon exerçant une pression sur le matériau dans une cavité de moulage coopérant avec un moule fixe
• B30B 15/04 - ChâssisGuides

Produits et services

Chemical products for use in the field of metallurgical and the steel mill industry. Preservatives against rust for use in the field of metallurgical and the steel mill industry. Machines for rolling metal; Machines for processing metal; Parts for all the aforesaid machines. Measuring, signalling and control devices and instruments; Data-processing equipment and computers. Repair of machines for rolling metal and machines for processing metal; Installation services; Rental and leasing of machines for rolling metal and machines for processing metal. Scientific and technological services and research and design relating thereto; Industrial analysis and research services; Design and development of computer hardware and software.

Produits et services

Plants for manufacturing tubes, wires, strips, steel bars, billets, rails and sections, namely machines for manufacturing , processing and treating of seamless and welded tubes, including large tube plants, hot rolling tube mills and cold rolling tube mills, wire mills, steel bar mills, billet mills, rail mills and section mills, drawing machines, wire ring presses, coilers, hot iron saws, cold saws, electric and hydraulic shears and cut-off machines, including tube cutting machines, cooling beds for tubes, wire, steel bars, billets, rails and sections, machines, in particular transport machines for finishing long products, straightening machines, hydrostatic pipe testers, loop laying heads, bundling stations, picking and weighing equipment, groove dressing machines, welded tube plants, strip coilers, strip accumulators, strip straightening machines, forming mills, large tube-plate forming presses, plate edge milling machines, tube expanders, open-die forging presses, radial forging machines, forging manipulators, plate connectors and section connectors, cable sheathing presses, mechanical and hydraulic metal powder presses, continuous casting plants, casting rolling plants, rolling plants and drawing plants, rod and ingot scalpers, all of the aforesaid goods being for the metal, copper, non-ferrous metal and aluminium industries; Hydraulic, emulsion and oil lubricating installations for maintenance of the aforesaid plants and machines with hydraulic medium, emulsion and oil, descaling installations for descaling tubes, wire, steel bars, billets, rails and sections, cooling apparatus for cooling tubes, wire, steel bars, billets, rails and sections in the manufacture thereof, heat treatment installations for the heat treatment of tubes, wire, steel bars, billets, rails and sections in the manufacture thereof; Butt welding machines, tube welding machines. Measuring and checking equipment and plants consisting thereof, for manufacturing tubes, wire, strips, steel bars, billets, rails and sections, picking and weighing equipment for tubes, wire, strips, steel bars, billets, rails and sections, automation systems for manufacturing tubes, wire, strips, steel bars, billets, rails and sections, consisting of controlling and regulating devices and computers. Cooling apparatus for manufacturing tubes, wire, strips, steel bars, billets, rails and sections, heat treatment apparatus for manufacturing tubes, wire, strips, steel bars, billets, rails and sections, smelting furnaces.

Abrégé

The invention relates to a continuously operating extrusion press (1), comprising a main pressing plunger (12) active in a receiving element (15), a preferably hollow counter pressing plunger (33), and a storage chamber (24) for metal pressing material, wherein said storage chamber can be blocked by means of the receiving element (15) and is operatively connected to the counter pressing plunger (33), and wherein the main pressing plunger (12), the counter pressing plunger (33), and the pressed pressing material can be moved horizontally. In order to enable the continuous pressing of metal, wherein by means of said extrusion press a continuous profiled element that is as uniform as possible can be continuously produced, the operative connection of the storage chamber (24) to the receiving element (15) and to the counterpunch (33) can be blocked under actuation by means of the pressing material.

Classes IPC  ?

• B21C 23/00 - Extrusion des métauxExtrusion par percussion
• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal

Abrégé

In order to optimize the lubrication of a rolling rod in a process for hot-rolling metallic, elongate hollow bodies (21) by means of the rolling rod (2), which is arranged in the hollow body and to which lubricant is applied before the hot-rolling operation, the lubricant is applied to the rolling rod in solid form.

Classes IPC  ?

• B21B 25/04 - Refroidissement ou lubrification des mandrins en cours d'opération

Abrégé

The invention relates to a hot work tool, in particular a piercing mandrel or a rolling bar for producing seamless pipes or a forging mandrel for hot forging tubular workpieces made of metal, said tool having a main tool body (2), wherein at least one working area of the main tool body (2) is provided with a coating (4). In order to achieve an improved strength of the coating (4) on the main tool body, according to the invention the main tool body (2) has a profiled surface (5) and the coating (4) is applied to the profiled surface (5). The invention further relates to a method for producing such a hot work tool.

Classes IPC  ?

• B21B 17/02 - Laminage des tubes par des cylindres dont les axes sont pratiquement perpendiculaires à l'axe des pièces travaillées, p. ex. laminage "axial" avec un mandrin
• B21B 23/00 - Laminage des tubes, non limité à l'un des procédés prévus dans un seul des groupes , p. ex. par procédés combinés
• B21B 25/00 - Mandrins pour laminoirs de tubes métalliques, p. ex. mandrins des types utilisés pour les procédés prévus dans le groupe Accessoires qui leur sont associés

Abrégé

An extrusion press for making profiles of nonferrous metal has a ram, a hydraulic piston/cylinder assembly for moving the ram, a pump connected to the assembly for pressurizing same, and an electric motor connected to the pump for driving same. A multiphase source of electricity is connected via a controller to the electric motor for a soft start of the motor.

Classes IPC  ?

• B21C 23/21 - Presses spécialement adaptées à l'extrusion du métal
• B21C 31/00 - Dispositifs de commande pour extrusion du métal, p. ex. pour réguler la vitesse d'extrusion ou la température du métalDispositifs de mesure, p. ex. pour la température du métal, combinés à des presses d'extrusion ou spécialement adaptés pour être utilisés en association avec ces presses

Abrégé

The invention relates to a roll stand (1) as a constituent part of a roll stand group (2) in a high-speed wire mill, having at least one roll pair or roll ring pair (5) and a drive shaft (7) which is connected to a motor (6), characterized in that each roll stand (1) of this roll stand group (2) is assigned a motor (6) and a drive shaft (7), and the motor (6), the drive shaft (7) and the at least one roll pair or roll ring pair (5) are arranged linearly with respect to one another.

Classes IPC  ?

• B21B 35/04 - Entraînement des laminoirs pour laminoirs à fonctionnement continu chaque cage ayant son ou ses propres moteurs

Abrégé

A frame of a metal-forming press having upper and lower traverses interconnected by vertical columns having upper and lower ends is provided with respective sets each of a plurality of identical tension bolts at each end of each of the columns. The traverses are formed at each end of each column with an array of throughgoing holes through each of which a respective one of the bolts extends, and the columns have opposite ends each formed with an identical array of blind threaded bores each in turn aligned with a respective one of the throughgoing holes. Each bolt has an inner end seated in a respective on of the bores of the respective column end and an outer end bearing inwardly on a face of the respective traverse.

Classes IPC  ?

• B21D 22/00 - Mise en forme sans coupage, par estampage, repoussage ou emboutissage
• B21D 37/12 - Équipements particuliers de guidageAménagements particuliers pour l'interconnexion ou la coopération des matrices
• B30B 1/42 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des moyens magnétiques p. ex. électromagnétiques

Abrégé

A forging press has a workpiece manipulator having a shaft centered on and rotatable about an axis, a grab for holding the workpiece in the press and rotationally fixed to the shaft carrying the grab and centered on and rotatable about an axis, and a disk fixed angularly to the shaft and projecting radially outward therefrom. Two couplings are juxtaposed with the disk, rotatable relative to the shaft about, and have respective clutches for locking onto the disk so that when locked onto the disk the couplings are rotationally fixed to the disk. Respective actuators connected to the actuators can angularly shift the disk and thereby rotate the shaft, the grab, and the workpiece held by the grab.

Classes IPC  ?

• B21D 43/10 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau au moyen de pinces ou de griffes

Abrégé

.n) of the continuous rolling mill (1) and thus is transferred to an accompanying second mandrel holding and transporting device (6) connected downstream and held by the same until the tube blank (9) is rolled off by means of the extracting rolling mill (4).

Classes IPC  ?

• B21B 19/04 - Laminage de matériaux de structure pleine, c.-à-d. non évidéePerçage
• B21B 25/02 - Guides, supports ou butées pour mandrins, p. ex. chariotsDispositifs de réglage pour mandrins
• B21C 45/00 - Séparation des mandrins des pièces usinées, ou vice versa
• B21B 17/04 - Laminage des tubes par des cylindres dont les axes sont pratiquement perpendiculaires à l'axe des pièces travaillées, p. ex. laminage "axial" avec un mandrin selon un processus continu
• B21B 17/14 - Laminage des tubes par des cylindres dont les axes sont pratiquement perpendiculaires à l'axe des pièces travaillées, p. ex. laminage "axial" sans mandrin
• B21B 23/00 - Laminage des tubes, non limité à l'un des procédés prévus dans un seul des groupes , p. ex. par procédés combinés

Abrégé

A drive for a roll stand having a reciprocal frame, has a pair of substantially identical cranks rotating about respective crank axes offset from the frame, respective connecting rods pivoted on and connected between the cranks and the frame, and respective counterweight on the cranks opposite the respective arms. The cranks, rods, and counterweights flank a central plane. Respective drives rotate the cranks about the respective axes in opposite rotational directions.

Classes IPC  ?

• B21B 35/00 - Entraînement des laminoirs

Abrégé

The invention relates to a method and a rolling mill for producing a seamless steel pipe in a continuous rolling process, where semi-finished material is first formed into a hollow block (8) in a rotary rolling mill, said block then being rolled in a multi-tooled continuous rolling mill (1) over a previously inserted mandrel (10) to form a tube blank (9), wherein the mandrel (10) receiving the hollow block and held by a mandrel holding and transporting device (5) disposed on the entry side is fed into the continuous rolling mill (1) and is transported back to the entry side after the tube blank has been rolled off of the mandrel (10) on an extracting rolling mill (4) connected downstream of the continuous rolling mill. An aim of the invention is to allow high production rates at the same product quality, particularly at a low drop in the temperature of the tube blanks. The aim is achieved in that the mandrel (10) with the tube blank (9) is released by the entry-side mandrel holding and transporting device (5) after exiting the last tool (2.n) of the continuous rolling mill (1) and thus is transferred to an accompanying second mandrel holding and transporting device (6) connected downstream and held by the same until the tube blank (9) is rolled off by means of the extracting rolling mill (4).

Classes IPC  ?

• B21B 25/02 - Guides, supports ou butées pour mandrins, p. ex. chariotsDispositifs de réglage pour mandrins
• B21C 45/00 - Séparation des mandrins des pièces usinées, ou vice versa

Abrégé

The invention relates to an automation unit in conveying installations, comprising means for power transmission and for data transmission between or from a fixed power rail and or to a mobile transportation unit, and also means for detecting and determining the position of the mobile transportation unit relative to the distance covered. The aim is to provide an automation unit which, besides having greater operational and functional reliability, reduces the amount of investment and fitting involved, in particular. To this end, the power rail (12) is in the form integrated with the means for data transmission (16) and position finding (17), which have associated counterparts on the mobile transportation unit (8; 8 a, 8 b) for power acceptance, signal/data transmission and position detection.

Classes IPC  ?

• B60L 5/00 - Collecteurs de courant pour lignes d'alimentation en énergie sur les véhicules propulsés électriquement

Abrégé

A bending press for making tubing from a substantially planar and longitudinally extending metal sheet has a support extending transversely generally parallel to the sheet vertically offset from the sheet, and a bender at one of the edges of the sheet and slidable transversely generally parallel to the sheet on the support. The bender has a pair of bending tools, a tie rod extending transversely in the direction adjacent the pair of tools, and an actuator braced transversely in the direction between the tie rod and the tools and extensible in the direction to tension the rod and press the tools against opposite faces of the sheets at the one edge to deform the one edge. A clamp is engageable between the bender and the support for releasably locking the bender to the support at any of a plurality of positions offset transversely therealong generally parallel to the sheet.

Classes IPC  ?

• B21D 39/02 - Utilisation de procédés permettant d'assembler des objets ou des parties d'objets, p. ex. revêtement par des tôles, autrement que par placageDispositifs de mandrinage des tubes des tôles par pliage, p. ex. jonction des bords d'une tôle pour former un cylindre
• B21D 5/04 - Cintrage des tôles le long de lignes droites, p. ex. pour former un pli simple sur des presses particulières avec fixation d'un côté de la pièce
• B21D 31/00 - Autres procédés de travail des tôles, tubes ou profilés métalliques

Abrégé

An internal tool for bending a strip passing in a strip-travel direction into a tube has a support juxtaposable with a face of the passing strip, at least two roller holders pivotal on the support about respective offset holder pivot axes generally parallel to the strip-travel direction, and respective rollers carried in the holders and rotatable about respective roller axes generally perpendicular to the respective holder axes.

Classes IPC  ?

• B21D 5/08 - Cintrage des tôles le long de lignes droites, p. ex. pour former un pli simple par un procédé d'étirage dans lequel les pièces à travailler sont mises en forme par passage entre des matrices ou des rouleaux, p. ex. fabrication de profilés utilisant des rouleaux de formage
• B21D 39/02 - Utilisation de procédés permettant d'assembler des objets ou des parties d'objets, p. ex. revêtement par des tôles, autrement que par placageDispositifs de mandrinage des tubes des tôles par pliage, p. ex. jonction des bords d'une tôle pour former un cylindre
• B21D 51/28 - Pliage du joint longitudinal

Abrégé

One of a pair of rolls of a roll stand is formed with an axially throughgoing central hole through which passes a drive shaft having a pair of ends. A coupling at one end of the drive shaft rotates same and the one roll. This one roll can be shifted, normally vertically, between a use position closely juxtaposed with the other roll and a change position spaced away from the other roll and with the roll resting on supports. An entrainment fitting on the carriage can fit with and axially connect to an entrainment element of the drive shaft in the change position of the other roll. An actuator can shift the carriage from an inner position into an outer position and thereby pull the drive shaft out of the one roll and leave the one roll resting on the supports.

Classes IPC  ?

• B21B 31/00 - Structures des cages de laminoirMontage, réglage ou échange des cylindres, des supports de cylindres ou des châssis

Abrégé

In a wire rod mill, the last rolling block or unit, either a finishing unit or a postfinishing rolling unit, with common drive is not used for traction control, but traction control upstream thereof is provided to regulate the cross section of the wire rod strand before entry into the last stage. The product is a wire rod strand of low cross sectional tolerance and high uniformity over the length of the rod.

Classes IPC  ?

• B21B 39/08 - Systèmes de freinage ou de tension
• B21B 39/00 - Systèmes pour faire avancer, soutenir ou présenter le matériau, ou pour commander son mouvement, combinés avec des laminoirs, disposés dans des laminoirs, ou spécialement conçus pour être utilisés avec des laminoirs
• B21B 37/68 - Commande de la cambrure ou de la direction des bandes, des feuilles ou des tôles, p. ex. prévention des méandres

Produits et services

INDUSTRIAL MACHINERY AND PARTS THEREFOR, NAMELY PIPE AND TUBE ROLLING MILLS MACHINERY FOR THE PURPOSE OF MANUFACTURING PIPES AND TUBING ELECTRONIC CONTROL AND REGULATING DEVICES FOR TUBE AND PIPE ROLLING MILLS MACHINERY, NAMELY, ELECTRONIC CONTROLLERS, VOLTAGE REGULATORS FOR ELECTRIC POWER, COMPUTER AND PERIPHERALS; COMPUTER OPERATING PROGRAMS FOR USE WITH INDUSTRIAL MACHINERY, NAMELY FOR USE IN CONTROLLING TUB AND PIPE ROLLING MILL MACHINERY

Produits et services

[ CONTROLLERS AND ADJUSTERS FOR OPEN-DIE FORGING PRESSES; COMPUTERS; COMPUTER PROGRAMS FOR THE CONTROL AND ADJUSTMENT OF METAL FORMING MACHINES ] COMPUTER SOFTWARE CONSULTATION REGARDING COMPUTER PROGRAMS FOR THE CONTROL AND ADJUSTMENT OF METAL FORMING MACHINES IN THE FIELD OF METAL FORMING MACHINES; DEVELOPMENT OF COMPUTER SOFTWARE FOR DATA PROCESSING

Produits et services

Machines and installations for the treatment of materials, mainly for metalworking, in particular peeling machines, trimming machines and machines for cold and hot forming, in particular for multistage cold and hot forming, rod and pipe handling systems, drawing installations and pipe welding installations. Training and instruction with regard to machines for the treatment of materials, in particular for metalworking. Engineering services; Planning, design and consultancy with regard to machines and installations for the treatment of materials, in particular metalworking, in particular peeling machines, trimming machines and machines for cold and hot forming, in particular multistage cold and hot forming, rod and pipe handling systems, drawing installations and pipe welding installations.

Produits et services

(1) Machine tools and parts thereof, machines for non-cutting shaping driven by hydraulic drive, namely presses, riveting machines, hydraulic accumulators and press pumps, machines for non-cutting shaping driven by mechanic drive, namely forging machines, bending machines, hot milling machines with saws, forging rollers, trimming or folding presses, drop forging and sizing presses, forge hammers, namely, pneumatic, steam and drop hammers, counter rams, plate shears,shears for cutting in the cold or hot state.

Produits et services

(1) Machines tools and parts thereof, machines for non-cutting shaping driven by hydraulic drive, namely presses, riveting machines, hydraulic accumulators and press pumps, machines for non-cutting shaping driven by mechanic drives, namely forging machines, bending machines, hot milling machines with saws, forging rollers, trimming or folding presses, drop forging and sizing presses, forge hammers, namely pneumatic, steam and drop hammers, counter rams, plate shears, shears for cutting in the cold or hot state.