Abrégé

The invention relates to a winding machine for winding material (4) to be wound, comprising at least one winding spindle (1), a drive unit (3) for driving the winding spindle (1), an oscillating device arranged upstream of the winding spindle, a dancer roller (5) that can be displaced counter to the force of a spring (9), and a device for determining a signal proportional to the tension in the material (4) to be wound that is supplied, wherein a control device (17) for controlling the rotation speed of the winding spindle (1) is provided, to which the signal proportional to the tension in the material (4) to be wound that is supplied is fed as an actual value, and which interacts with the drive unit (3) in order to keep the tension in the material (4) to be wound at a predefined intended value. The device for determining a signal proportional to the tension in the material (4) to be wound that is supplied comprises a force measuring device (11) which is designed to measure the spring force of the spring (9).

Classes IPC  ?

• B65H 59/40 - Utilisation d'indicateurs de tension
• B65H 59/38 - Réglage ou commande de la tension du matériau filiforme, p. ex. pour empêcher les vrillesUtilisation d'indicateurs de tension par régulation de la vitesse du mécanisme d'entraînement des dispositifs de déroulage, de dévidage, d'avance, d'enroulement ou d'emmagasinage, p. ex. en réaction automatique aux variations de tension
• B65H 59/36 - Éléments flottants compensant les irrégularités dans l'alimentation ou la prise du matériau

Abrégé

In the case of a woven fabric (1) for the manufacture of bags consisting of polymeric tapes, more particularly polyolefin, polypropylene, polyethylene (HDPE) or polyethylene terephthalate tapes, which are preferably monoaxially oriented, the fabric being provided with a coating, the coating is formed by a nonwoven polymeric web, more particularly a polyolefin or polypropylene web (3).

Classes IPC  ?

• B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
• B65D 65/40 - Emploi de stratifiés pour des buts particuliers d'emballage

Abrégé

The invention relates to a device for feeding granulate and filler material to an extruder screw (11) of an extruder. A cyclone (12) with an inlet opening for introducing a delivery flow of pneumatically delivered filler material and with an outlet opening (16) for discharging the filler material which has been separated from the delivery flow, a feed funnel (1) for the fresh granulate, and a mixing section (9) are provided, the separated filler material and the fresh granulate from the feed funnel (1) being fed to said mixing section. The cyclone (12) is arranged at least partly in the feed funnel (1) and is coaxial to same such that the outlet opening (16) of the cyclone (12) dips into a feed funnel (1) outlet region (6) which surrounds the outlet opening (16) in an annular manner, wherein a stuffing screw (19) passes axially through the outlet opening (16) of the cyclone (12) and at least partly protrudes into the mixing section (9), which axially adjoins the outlet opening (16).

Classes IPC  ?

• B29C 47/10 - Alimentation en matière à mouler de l'extrudeuse
• B29B 7/66 - Recyclage de la matière
• B29C 47/08 - Eléments constitutifs, détails ou accessoires; Opérations auxiliaires
• B29C 31/02 - Distribution à partir de réservoirs, p. ex. de trémies
• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques

Abrégé

In a method for continuously coating a web of woven fabric on both sides, wherein the web of woven fabric is conveyed in a conveying segment by means of rolls, wherein the web of woven fabric, after a first partial circulation around a coating roller, is guided into a redirecting device comprising two rods arranged at a right angle to each other and the web of woven fabric thus redirected is fed again to the coating roller at a lateral offset and in the same direction of motion as in the first partial circulation for a second partial circulation, the web of woven fabric is guided between the two rods of the redirecting device arranged at a right angle to each other by means of a further roll or rod, which is arranged transversely to the direction of motion of the web of woven fabric.

Classes IPC  ?

• B05C 9/04 - Appareillages ou installations pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par des moyens non prévus dans l'un des groupes , ou dans lesquels le moyen pour déposer le liquide ou autre matériau fluide n'est pas important pour appliquer des liquides ou d'autres matériaux fluides aux côtés opposés de l'ouvrage
• B65H 23/32 - Dispositions pour tourner ou renverser les bandes

Abrégé

The invention relates to a bobbin (1) which comprises a bobbin housing (8) and a strip or thread-shaped material (5) which is wound thereon in a plurality of layers, at least one marking (MA; ME), which is in the form of a significant modification of the laying angle (f), is provided in order to display properties of the winding material (5). The invention also relates to a device which is used to identify the properties of winding material (5) on said type of bobbin (1). Said bobbin is associated with a rotational speed sensor (3). An output signal (6) of the rotational speed sensor is guided to a calculating unit (10) and the fluctuations of the output signal of the rotational speed sensor (3) according to the detection characteristics of the calculating unit, which occur when the winding material (5) is wound, produce an output signal (11) during unwinding in the region of the marking, whereas traditional rotational speed signals from non-marked areas of the winding material of the bobbin are processed by the calculating unit (10) in such a manner that no active output signal (11) is emitted.

Classes IPC  ?

• B65H 54/34 - Dispositifs de va-et-vientDispositions pour la mise en forme des paquets pour la formation d'un enroulement auxiliaire, p. ex. réserve de transfert
• B65H 63/08 - Dispositifs d'alarme ou de sécurité utilisés pour le déroulage, le dévidage, le défilement, l'enroulage, le bobinage ou l'emmagasinage d'un matériau filiforme, p. ex. détecteurs automatiques de défectuosités ou mécanismes d'arrêt réagissant à la livraison d'une longueur donnée du matériau, à l'achèvement de l'enroulage d'un paquet ou au remplissage d'un récipient
• B65H 67/08 - Dispositions automatiques pour la recherche des extrémités et le raccordement du matériau

Produits et services

Machines, in particular machines for the manufacture and processing of packaging, including sacks and bags of plastic or textile. Packaging material, in particular sacks and bags of plastic, not included in other classes. Plastics in extruded form for use in manufacture, in particular of woven plastics; flexible pipes, not of metal. Nets, tarpaulins, sacks and bags (not included in other classes). Textiles and textile goods, not included in other classes.