The present invention relates to a deformity detection system (4) and a method for detecting the deformities (2) in online web materials and managing them on the web-processing lines Such web processing line along with deformity detection system may comprise of data transmission (5) to cloud (3) which may include intranet, wifi, or can be any means of online data transfer and a processing line's control unit (10) includes human machine interface HMI, display screens, control boxes. The system (4) has system has a camera module interface (7) for capturing images; a processing unit (8) to detect deformities; an interface for cloud (3) for storing the deformities data; and an external unit interface (13) to accommodate external GPU accelerators for enhanced image processing speed and to facilitate seamless information exchange between said camera module interface (7), said processing unit (8) and said interface for cloud (3).
A shredding apparatus and a method for shredding thermoplastic waste is disclosed In one characterising aspect, a flexible cover is mounted on the housing above the reciprocating slider (2) in a cantilever manner where the overhang portion of the flexible cover (7) covers the area only exposed to the clearance between the reciprocating slider and fixed plate due to which there is no direct contact between the plastic waste and reciprocating slider at the clearance zone. The provision of the flexible cover (7) prevents the shredded material from jamming between reciprocating slider (2) & side walls (11) of the housing of shredding device. A set of rotating and counter knives (4, 5) are arranged along the periphery of the rotating shaft in a helix manner. Proportional valve air jets (9) are placed in the lower region of the conveyor tube to push the material towards the end of the conveying region.
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
An apparatus and a method for opening the ends of tubular web pieces (2) to make squared or block bottoms is disclosed. The apparatus comprises a pre-opening device (1A), upper and lower plates (21, 22) adjustable with a knob (6) to create a flexible opening (23) through which a cut tubular web piece (2) of wide range of variation in gsm can travel in the direction of movement of fabric (5). There are a set of vacuum belts (4, 4A), upper and lower guide elements (7 A, 7B), a set of gears (11,12,13,14) which are driven by a motor (10), and a splaying unit (IB) having first and second splaying elements (8,9) that enter the opening at the end of cut piece (2) and gradually and continually spread apart from each other, the layers of web pieces (2) at open end of the cut tubular piece to form a block bottom.
Apparatus, method for hemming edges of tubular bag of woven fabric of PE/PPE or HDPE material involving opening, folding, and thermally fusing edges at a cut end of a tubular bag (1) made from woven fabric, and a tubular bag. The apparatus comprises a pre- opening unit (F), a mouth folding unit (G), and a thermal fusion unit (H) positioned sequentially. Each unit (F, G, H) has a suction mechanism (13a,13b,13c) placed above top layer (21a) of the bag (1) for opening the unsealed end (2a); a linear guide mechanism (15a,15b,15c) to actuate the suction mechanisms (13a), a support bed (22a,22b,22c) facilitated with suction mechanism and provided under a lower layer (21b) of the bag (1), and a perforated plate (16a,16b,16c). Layers (21a,21b) are separated (pre-opening unit F) at open end (2a) followed by creating inward folded edges (12) at folding unit (G), and heat fusing them at the thermal fusion unit (H).
B65B 59/00 - Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages or to give access for cleaning or maintenance purposes
5.
A CUTTING DEVICE PROVIDED IN A WEB CUTTING APPARATUS AND A METHOD FOR CUTTING A MOVING WEB OF SHEET MATERIAL
A cutting device (7) and method for cutting of moving web of sheet material is disclosed. It comprises a blade (30) enclosed in a front cover (12) and having its cutting edge oriented vertically and that a top edge of said cutting device (7) is mounted at an angle of inclination (Ɵ) with the horizontal. An adjustment assembly (16) makes said angle of inclination adjustable. The in-plane movement of said cutting device (7) is perpendicular the direction of movement of said moving web (2) and the direction of linear movement of the top edge of said cutting device (7) is at said angle of inclination with the horizontal. Two connecting brackets (14, 23) spaced apart from each other, connect the cutting device (7) to a first and second side plates (4, 5). An adjustment knob (18) along with an adjustment lever (22) allows adjustment of the inclination of the cutting device (7).
B26D 1/04 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
B26D 7/14 - Means for treating work or cutting member to facilitate cutting by tensioning the work
B65H 35/06 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
The invention discloses a traverse mechanism (6) housed inside a cambox (4) and having a traverse guide (5) and a yam stopper (9) and a method for yam transfer. The traverse guide (5) has a planar body comprising a stem (5k), a right wing (5a) and left wing (5b) having a lip (5e), said wings (5a, 5b) having convex outer edges and concave or straight inner edges, and said lip (5e) shares said outer edge of the left wing as its own outer edge which continues around the lip (5e) to form third inner edge (5h) that enjoins with edge forming the groove (5c). The yarn stopper (9) is affixed to the cambox (4) and has a rigid planar body with an outer end (9b) oriented at a first angle with an inner end (9a) that bends into an inner leg (9c) that is at a second angle with said outer end (9b).
B65H 57/00 - Guides for filamentary materialsSupports therefor
B65H 67/048 - Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
7.
AN APPARATUS AND A METHOD FOR REMOVAL OF MOISTURE CONTENT FROM THE MATERIAL BEING PROCESSED FOR MAKING AN EXTRUDED FILM ON A RAFFIA TAPELINE, AND A RAFFIA TAPELINE INTEGRATED WITH APPARATUS FOR MOISTURE REMOVAL
An apparatus and a method for removal of moisture content from the material being processed for making an extruded film on a raffia tapeline using dehumidifier based air drying system (B) is disclosed. The dehumidifier air drying system (B) comprises a drying unit (11) and a dehumidifier unit (15). The drying unit (11) comprises at least one loader (12) having anti-heat transfer coating and an insulation layer on its inside into which resins are transferred. The dehumidifier air dryer units (B) are based on desiccant dryers which operate as closed loop air circulation system where heated "dry" air is circulated over a thermoplastic resin, which releases absorbed moisture into the passing air. This "wet" air subsequently passes through a desiccant molecular sieve material. The desiccant material is able to absorb moisture from the circulating air making it "dry" again.
The invention discloses an apparatus and method of drying of polymeric film. In one characterising feature of the invention at least a pair of air dryers (18) are installed after the quench unit, or a water tank (3), such that these are far from it and the film get enough time to get dried before entering into the next processing unit namely cutter unit (22) in which film (1) is slit into tapes of desired width and thereby made to enter into a hot air oven. Further, the air drying unit (18) is placed so that the film (1) after passing through a third and fourth sets of suction pipes (15, 16) is at a film angle (θ ) with the vertical, and wherein a first and a second set of suction pipes (9, 10) create suction on the surfaces (1A, 1B) of the film (1) to suck the water droplets.
The invention discloses a side gusseted bags with a valve and an apparatus and method of producing it. The apparatus has a web puller unit (A), a first cutting unit (B), a first folding unit (C), a first sealing unit (D), a conveying unit (E), a second cutting unit (F) having a first and second cutting blade (15, 15A), an opening and inward folding unit (G), a pressing unit (H), an eco cutting unit (I), a second folding unit (J), a second sealing unit (K), and a stacking unit (L). An L-shaped cut is made on the second end of the fabric at second cutting unit (F) with first and second cutting blades (15, 15A) that moves in the traverse and transpose direction, whereafter at opening and inward folding unit (G), the second end is opened by a suction means such that a space is created for tool insertion, where the second end of the cut piece of the gusset fabric is folded and sealed to form a valve (9).
B31B 70/855 - Forming valves integral with the containers
10.
AN APPARATUS AND A METHOD FOR TRANSPORTING TUBULAR BAG BODIES ON A BAG MAKING PRODUCTION LINE AND GRADUALLY CHANGING THE TRANSPORT DIRECTION OF A CUT PIECE OF A TUBULAR BAG BODY AND A BAG MAKING MACHINE HAVING SAID APPARATUS
The invention discloses an apparatus and a method for transporting cut piece in the direction of their longitudinal axis followed by gradually changing the direction of their transport transversely to the longitudinal axis. The invention disclosed has one 10 longitudinal transport device (2), one cross transport device (3) on which apparatus of invention (8) is mounted, and a transverse transport device (4) to transfer cut piece (5) from longitudinal direction to traverse direction. During the direction change, a gripping means (6), which comprises of gripping unit (6', 6''), follows a groove path (19) such that during one cycle of cut piece (5) transfer, the upper and 15 lower gripping units (6', 6'') come in contact with each other such that gap between them is near to zero, thereby gripping the cut piece (5) between them and transporting it gradually along the inclined direction leading to the traverse direction.
The invention describes an apparatus and a method for producing a bag made from fabric which may be woven fabric, non-woven fabric, optionally coated or laminated, with integrally formed bottom and a bag that may be block-bottom type, may have a valve, or may be of pillow type and easy to close after filling. The apparatus comprises a conveyor (4) with perforations and edge (32), cutter unit (6), opening unit (7) to open the layers said cut piece (1) to form a mouth, suction device and a suction block (28) having a curvature to form a smooth path of travel for the cut piece (1) and provided with suction openings (29), first and second penetrators (8, 9) rotatable about a pivot (20) and capable of making cut in fabric, first folder (11) and a first sealing device (2) at single station, second folder (12) and press unit (17).
Invention relates to guiding apparatus (16) for running yarn in a circular loom. It comprises a creel support (5) to mount yarn bobbins, a central shaft (20) connected to bracket (19) and front guiding unit (17) and rear guiding unit (18) connected together via block (19) and a pair of support brackets (4) having a back (4a) and a transverse flange (4b) on either side of the back (4a), and a side surface (4c) on the traverse flange (4b) and lower edge (4d). Two pairs of first and second flat strips (22, 23) having a pair of horizontal support bars (6) supported between two end brackets (7) to provide sturdy structure. Guiding units (17, 18) are provided with vertical pins (8) at a predetermined distance from each other so that yarn (2) can travel smoothly. Vertical pins (8) are mounted between the first flat strip (22) and second flat strip (23) perpendicularly to flat strips (22, 23).
The invention discloses a woven fabric (1A) made from bast yarn and bast compatible non-bast yarn, its method of manufacturing and a sack/bag from such fabric. The woven fabric (1A) of invention is made from bast yarn (3A) and bast-compatible non bast yarn (2A, 2B) to make sacks/bags (1) for packaging applications, especially for perishable goods/ commadities. A key feature of the invention is that the fabric (1A) is made using relatively heavy diner bast yarn (3A) on a flat loom. This avoids the fluff and particulate matter generated during weaving process on a circular loom, which cannot work with the heavy denier yarn used in the present invention. The woven fabric (1A) manufactured using the method and materials disclosed here is more robust and durable than the fabric manufactured on a circular loom. The invention also discloses a bag (1) made from the woven fabric (1A) and a process of making a bag (1) that uses an L-stitch or two longitudinal side stitched (1M), or a U-shaped stitch (1N).
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
B65D 30/04 - Sacks, bags or like containers characterised by the material used made of fabric
B65B 43/10 - Forming three-dimensional containers from sheet material by folding the material
14.
A TRANSFERRING SYSTEM AND A METHOD FOR TRANSFERRING CUT PIECES OF WEB MATERIAL AROUND CORNERS
The discloses a transferring system and method for transferring cut pieces of web material around corners used in conversion of web material rolls into piece goods such as bags. The apparatus allows the cut pieces (3) to be grabbed by the grabbing clamp (7) and transferred by a transportation unit (4) such that its direction of movement changed from the cutting direction (15) to transverse direction (17) via an intermediate pull-off direction (16) without stopping but in a gradual manner. This phenomenon of change in direction the cut piece as soon as the fabric is cut is facilitated by the synchronisation of the three entities: cutting speed, grabbing of the cut piece material and the line speed of the main line. The chain (10) mechanism used for this purpose is laid out in four distinct segments or regimes - grabbing regime (12), inclined pull-off regime (13), the release regime (14), and the compensation regime (11).
B26D 5/20 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
B65H 29/00 - Delivering or advancing articles from machinesAdvancing articles to or into piles
B65G 47/00 - Article or material-handling devices associated with conveyorsMethods employing such devices
An apparatus and method to decontaminate polymeric material composition with a multiple melt filtration system are disclosed. The apparatus (1) comprises an extruder frame (13); an extruder drive unit (4); a material hopper (2) mounted on an extruder unit (3); an extrusion barrel (10) connected to the extruder unit (3) at the second end (15) of said extrusion barrier (10); a first and a second filtration unit (5, 8), and melt pump (7) separated from the second filtration unit (8) a first spacer (16). The molten material from extrusion barrel (10) is filtered by first filtration unit (5) and delivered to said melt pump (7) which then delivers the molten material at uniform pressure into second filtration unit (8) from where the decontaminated molten material is delivered to a sheet/film forming die (9). Filtration units (5, 8) have filters made from materials consisting of sintered- metal, metal mesh or screen, fiber metal felt, ceramic, or a combination thereof.
: The invention discloses a circular loom and a method for producing regulated weft pattern fabric where the weave density of weft yarn may be varied. It also discloses a fabric that has congestion zones (28) at predetermined locations. The main motor (1) drives the main drive (2) and a haul-off motor (15) drives a fabric haul-off drive (14). The rotational speeds of both motors (1, 15) are controlled via a main electronic control unit (34). Key weaving parameters are fed to a human machine interface (35). An incher unit (7) is provided at multiple locations along periphery of an E-ring stand (20) to facilitate the operation of the loom. The speed of the haul off motor (15) is decreased with respect to the main motor (1) such the at same interval of time more weft yarn /tape (32) will enter into the weaving pattern to form a cramming effect or congestion zone (28).
The present invention relates to a circular loom and a method for manufacturing of a tubular woven fabric of composite weave using a circular loom, and a fabric of composite weave, i.e. a combination of plain and leno weave. The fabric has a portion of plain weave and some portion of doup weave. An inventive circular loom (1) is provided with a main plate (9) that supports shed forming means for doup weave and plain weave. This is made feasible by provision of a first cam plate (2) and a second cam plate (3), each of which have an irregular surface on which a first cam lever (6) and a second cam lever (7) operate. The composite weave is made possible by the provision of a doup rocking lever assembly (8) that connects the first cam lever (6) to the first shedding means (4) which produces a doup weave and by provision of the second cam lever (7) which is connected to second shedding means (5) to produce a plain weave.
An apparatus and a method for cutting a moving web (2) of woven sheet material is disclosed. The key components of the apparatus are a pre-draw roller assembly (9) and post-draw roller assembly (11); a cross cutter apparatus (7), mounted at an angle between said roller assemblies (9, 11), and having a moveable knife assembly (38); a system of pneumatic cylinders (16, 17, 18, and 19) that operate a first tension rollers assembly (13) and second tension roller assembly (14) respectively mounted corresponding to said pre-draw assembly (9) and post-draw assembly (11) that help hold down said moving fabric securely and under tension; and a cross cutter apparatus (7) having a movable knife assembly (38) in between of the rollers (9, 11), and a set of pulleys (28, 29) that make possible the movement of the knife assembly on a cutting platform (8), whereby the continuous web (2) is cut into the web cut pieces (15).
B26D 1/04 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
B26D 7/14 - Means for treating work or cutting member to facilitate cutting by tensioning the work
19.
AN APPARATUS AND A METHOD FOR OPENING ENDS OF TUBULAR WEB PIECES TO MAKE BLOCK BOTTOM BAGS
The invention relates to an apparatus and a method for opening ends of tubular web pieces (2) to make squared or block bottoms. Apparatus comprises an end-opening device (7), two rotating differentials (22, 26) positioned angularly to the plane of web pieces (2). Each differential (22, 26) has a shaft on which a pair of splaying elements (8, 9) formed by shaping bars into curvilinear shape is 10 mounted. Splaying elements (8, 8A, 9, 9A) form a three-dimensional virtual shape upon rotation. Individual layers of the bag body at its open-end portion are spread apart by guiding elements (7A, 7B) of opening device (7) near one corner to form an opening at the bottom into which one of the splaying elements is inserted. Continued rotational motion of drives ensures that both splaying elements enter the opening and gradually and continually spread apart from each other the layers of web pieces (2) at open end to form a block bottom.
12122 are preferably less than 45°. As the fabric width varies, the angular position of the movable arms, which rest on the fabric edge, will also vary. Using the method and the apparatus, the variation in the angular position is sensed by the angular position sensors which also transmit the data to a computing module that calculates the width of the fabric, thereby monitoring it.
G01B 11/04 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
21.
AN APPARATUS AND A METHOD FOR CHANGEOVER OF UNWINDING ROLLS OF FABRIC
An apparatus and a method for changeover of unwinding rolls (29, 30) of fabric (28, 28A) is disclosed. The apparatus comprises a main frame (1), a slidable frame (11) and at least two platforms for fabric rolls (24, 24A). Main frame (1) is equipped with guide rollers (6, 7, 8) to guide path of unwinding fabric. A press assembly (9) applies pressure on fabric (28) to help with easy cutting at the changeover time. The slidable frame (11) slides over main frame (1) and comprises a support wall (21) for mounting roll shafts (17, 18) and front and back rail guides (16, 16A) slidably mounted over the base members (2) of main frame (1). Support platforms (24, 24A) over which carrier platforms (25, 25 A) slide form support structure on which fabric rolls (29, 30) are mounted during fabric preparation stage. All movements are automated but controlled by an operator (34).
The invention discloses system and method to measure thickness of polymeric coatings fabrics using measuring gauges and adjust it as necessary. The system employs scanners (5, 5) for measuring the thickness of coatings. The scanners scan the thickness of the coatings (4, 4a) or coated fabrics (2, 3) and assesses whether they have acceptable uniformity. If the uniformity of thickness of coatings (4, 4a) or that of the coated fabrics (2, 3) is outside acceptable margin, the die bolt nozzles through which the polymeric coating melt is applied on the fabric are adjusted automatically/manually to apply more/less coating material as necessary. Fabric may be coated on one or both sides. The system is capable of measuring and adjusting thickness of coatings on one or both sides of the fabric as necessary. The method uses the system of invention to measure thickness of polymeric coatings fabrics and adjust it as necessary.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
G01B 15/06 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring the deformation in a solid
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B29C 48/15 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
D06B 3/10 - Passing of textile materials through liquids, gases, or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
D06B 23/00 - Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups
23.
A CUTTING APPARATUS HAVING A SEMI-AUTOMATICALLY REPLACEABLE CUTTER RAIL AND SEMI-AUTOMATED METHOD OF REPLACING IT
The invention describes a cutting apparatus having a semi-automatically replaceable cutter rail (7) and semi-automated method of replacing it. The apparatus comprises a vertical frame (2) affixed to floor, a horizontal frame (3) affixed to said vertical frame (2) near its top end, a vertical guide rail (4) affixed to said vertical frame (2), a cutter rail carrier assembly (6) consisting of a cutter rail bracket (10) on which said cutter rail (7) is mounted, a geared motor (5) affixed to said vertical frame (2) to cause the up/down movement of said cutter rail carrier assembly (6), a set of guide roller (12) supported on a guide roller bracket (11) mounted on said horizontal frame (3) and capable of swivelling around a pivot (16). The cutter rail carrier assembly (6) is capable of moving up and down along said vertical guide rail (4) during replacement operation of said cutter rail (7).
B31B 70/14 - Cutting, e.g. perforating, punching, slitting or trimming
B26D 1/03 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
B26D 5/02 - Means for moving the cutting member into its operative position for cutting
24.
AN APPARATUS AND A METHOD FOR SEALING OPEN ENDS OF BAGS WITH EASILY OPENABLE SEAM AND A BAG WITH EASILY OPENABLE SEAM
Invention discloses a method and an apparatus for making easily openable seams at open ends of bags and bags with openable seams. The bags may be block-bottom, pillow-type, and with or without side gussets. For seaming the open end of the bag, the apparatus has been provided with a folding means (19) which comprises a folder (20) which is capable of receiving a flat closing strip (15) and converting it into a U-shaped closing strip (15A) having two arms (15B and 15C), and between which the open end is placed. The apparatus is also capable of receiving a seam opening strip (9) that is placed over the open end that is placed inside the U-shaped closing strip (15A) to form a composite open end (33A). The composite open end (33A) is sewn or stitched to form the easy-to-open seam. The seam is openable simply by pulling the seam opening strip (9).
B65B 61/18 - Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for applying or incorporating package-opening or unpacking elements, e.g. tear-strips
B31B 70/00 - Making flexible containers, e.g. envelopes or bags
B31B 70/81 - Forming or attaching accessories, e.g. opening devices, closures or tear strings
25.
AN AUTOMATED APPARATUS AND A METHOD FOR MAKING VALVE IN PILLOW-SHAPED SACKS, AND A PILLOW-SHAPE SACK WITH A VALVE
The invention relates to an automated method and an apparatus for making of pillow-shaped sacks with a valve. The apparatus consists of a number of stations positioned sequentially for the purposes of cutting; bottom folding and stitching; inward fold forming; edge cutting; folding and stitching. The valve forming forming station incorporates a spreader bar (15), a first device (6), a collapsible platform (19), a press assembly (13), and a rigid support sheet (24), wherein the plane of said collapsible platform (19) is capable of swinging around a swivelling mechanism (14) whose axis is parallel to direction of travel of said cut pieces (1). The inward fold in a cut piece of fabric is formed by swivelling action of the spreader bar (15). The depth of the valve is determined by the position of the press assembly. The method of the invention uses the apparatus of the invention to produce a bag with a valve.
The present invention provides a semi-automated device (15) for cutting web material (3). The device (15) is provided with means for detecting and monitoring defects in the web material (3), a cutter (5) to make cuts in the web material (3), and a unit to separate the defective cut sections (3b) of web material (3). The invention also provides a semi-automated method for cutting web material (3). The device (15) may be a standalone unit used in batch processing in a storage bag making plant, or it may be used in a semi-automated or automated bag conversion line where bags are made from web material (3). In particular, the device (15) is suitable for large or long fabric intended for making bulk storage bags, where wastage of fabric is a major concern. However, it may be used for fabric or web of any size for making bags of any size.
The invention relates to an apparatus and a method for controlling yarn winding tension in a winder system by reducing variations or fluctuations in thread tension during winding operations. The plurality of dancer arms (3) of the winding system are each provided with a tensioning device, which in turn has at least one polymeric fluidic tension actuator (8) which serves to determine an instantaneous signal which is approximately proportional to the required tension of the continuously arriving yarn (1). The tension actuator (8) generates required resistance on the dancer arm (3) in proportion to the required winding tension in the winding yarn (1). In the method for controlling the yarn winding tension, the change in said instantaneous angular position (3F) of said dancer arm (3) is monitored and used to regulate winding tension by changing rotational speed of spindle (2) through the individual winder head controller (13) in required proportion.
The invention relates to a semi-automated liner insertion device and a semi-automated method of inserting a liner cut piece into an outer covering to form a combine (6). The semi-automated device comprises a height adjustable frame (10) on which a semi-automated liner insertion platform (1) is mounted and which is capable of moving on a pair of rails (3) with the help of a pneumatic cylinder (8) 10 connected to a cross member (2) provided with rolling or sliding mechanism (2A). The pneumatic cylinder (8) is controlled by a pneumatic valve (12) or a solenoid valve (12). The semi-automated method of the invention comprises facilitating an automated movement of the liner insertion platform (1) onto which a liner cut piece (4) is placed manually, followed by a manual placement of an outer 15 covering piece (5) on the liner cut piece (4) to form a combine (6), following which the liner insertion platform is retracted semi-automatically to complete one cycle.
A circular loom to manufacture doup fabric (F) operating at achieve high speed weaving is disclosed. Conventional looms are faced with problems of undesirable friction at such speeds. The loom comprises a partial healds belt assembly which facilitates displacement of the interacting warp threads is provided on the loom. The warp threads of at least one of the pair of partial healds (4, 5), which are provided with thread eyes (3) through which the threads pass, are guided freely by thread guide means to bring about the shedding, and, on the other partial heald, to bring about a side change. In one aspect of the invention, the eyes (3) are provided with a ceramic insert (3A). The lateral movement needed to create the doup fabric (F) is facilitated by a swing control cam (6B) uses a swivel bush (12) to aid the swinging motion of swivel arm (11). As an aspect of the invention, the swivel bush (12) is made of metallic material.
The invention discloses circular loom to make plain weave woven fabric which is provided with reduced-friction warp guide elements to achieve high speed weaving. The circular loom is fitted with shed forming warp end guide (3) provided with an upper end portion (3A), a lower end portion (3B), and a middle portion (3C). The middle portion (3C) is provided with a thread eye (4). One key aspect of the invention is that the thread eye (4) has an internal profile curved to receive a reduced-friction thread eye insert (5). The side gap (7) and the end gap (8) between said thread eye insert (5) and the internal profile of said thread eye (4) are filled with adhesive. The advantage of this is that the thread eye assembly is desirably flexible/elastic but at the same time tough to a required degree.
During bonding process of labels and workpieces, which are made from thermoplastics, they are heated to 350+ oC before actual bonding. Effect of high temperature and thinness of surfaces causes thermal shock on the materials to be bonded, leading to product failure or quality issues. A device 1 to apply labels onto the sack workpieces 2 made from thermoplastics is disclosed to overcome these drawbacks. The device of the invention consists of a table platform 1A to carry cut and folded tubular pieces 2 with box ends 2A/2B of fabric. The device of the invention further consists of a label web pre-heating and conveying mechanism 1B which has at least one indirect heater 10 that pre-heats the label web strip 7 before labels 12 are formed and a conveying mechanism 11 to convey the label strip 7 and the pre-heated labels 12 for bonding with the tubular cut pieces 2. A method of bonding labels to sack work pieces by preheating the label web is also disclosed.
This invention relates to process and apparatus for making bags from polymer web materials, in particular polyolefines using adhesive bonding. It is well known that hot air welding/seaming systems used in such processes cause undesirable and uncontrolled deterioration in fabric strength. The invention discloses a process where surface enhancement techniques are used on surfaces to be joined together before joining them by using adhesives. There is an overall reduction in bag weight, increase in production speed, and increase in bond strength of joints. The invention also discloses an apparatus which has at least four stations: a first station (15), a second station (16), a third station (17), and a fourth station (18), wherein in each of said second, third, and fourth stations (16, 17 and 18), a sealing unit (19) having at least one unit (3) for surface enhancement treatment and at least one adhesive applicator (8) for applying adhesives as affixing means to surfaces that are affixed to each other are provided.
Circular looms used to produce woven fabric employ shuttles that carry wound bobbins. Pressure generated by the pressure pad assemblies of the shuttle leads to damage to the pressure pad liner and the yarn resulting in loss or productivity and poor quality fabric. Shuttle pad assembly (SA) of invention has a pressure pad assembly (2) harmless to the yarn as well as to itself. Pressure pad assembly (2) has a tension arm (1) and a pressure pad liner (2A) mounted on a pressure pad receiver (2B). Tension arm (1) connects the pressure pad assembly (2) to a pivot mechanism (3) which is affixed to the shuttle body (SB). The pivot mechanism (3), is connected to a fixed support (5) through a tension spring (4). Pressure pad liner (2A) is made of hard wearing metals or coatings. The invention also discloses a shuttle that incorporates the shuttle pad assembly as disclosed here and a circular loom that deploys the shuttle carrying the shuttle pad assembly disclosed here.
The present invention discloses a system to monitor breakages in a winder system for slit film tapes. More specifically, the invention discloses a method of identifying the tape breaks in multi-winder machine like extrusion tape-line or mono-filament line to alert operators for mending them. Further, the present invention provides on time and real time information on the productivity and downtime of individual winders and complete extrusion tapeline. The system comprises a sensing module (2) and a communicating device (3). The sensing module (2) is used to monitor one or more winders (1). The communicating device (3) enables sensing module (2) to communicate the information to a computing device (4) or the like in real time. Further, it is capable of monitoring elapsed time between tape break and rethreading of tape. The communicating device (3) also communicates signal of winder location with break to operator and updating information on computing device (4) or server which can further communicate with a client device.
The invention relates to manufacture of storage sacks made from tubular fabric and in particular to a device or an apparatus of and method for making multi-component sacks where packing sacks have an inner web inserted into them and joined together at the open end of the multi-component bag. In particular, the invention discloses a composite bags (C) made of an outer covering (1) and a liner insert (2) inserted into it are also termed as multi-component bags. The invention provides a process that allows the flexibility of joining the web liner insert along with the top edge of the outer covering to avoid separation of tapes at the edges. The invention also discloses an apparatus for making the composite bag and a process of making it.
B65B 43/12 - Feeding flexible bags or carton blanks in flat or collapsed stateFeeding flat bags connected to form a series or chain
B65B 43/00 - Forming, feeding, opening, or setting-up containers or receptacles in association with packaging
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
The invention relates to the field of weaving looms for tubular fabric. In particular, the invention relates to the bobbins that are used to wind yarn that is used to make the tubular fabric. The present invention provides durable bobbin tubes of reduced wear, thereby addressing the problem of unacceptably high wear of the aluminium tubes that form the core of the bobbins. In order to achieve the objective, the invention discloses a composite rigid tube (1B) comprising a rigid core tube (1A), and an end cover (5) having a ring (6), characterised in that on the inner surface (2) of said rigid core tube (1A) is provided at least one spoke (4), and that said end cover has at least one protrusion (7) protruding axially from said ring (6), wherein said end cover is push fitted onto each end of said rigid core tube (1A).
B65H 67/04 - Arrangements for removing completed take-up packages and replacing by cores, formers, or empty receptacles at winding or depositing stationsTransferring material between adjacent full and empty take-up elements
B65H 54/02 - Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
B65H 54/54 - Arrangements for supporting cores or formers at winding stationsSecuring cores or formers to driving members
B65H 75/24 - Constructional details adjustable in configuration, e.g. expansible
37.
A WOVEN FABRIC, A BAG MADE FROM IT AND A METHOD OF MAKING IT
The invention discloses a flat or tubular type woven fabric (1A) made from yarn which has texture like jute. It has warp and weft threads (1B, 1C) in an arrangement such that some or all of either weft or warp, or both, of said fabric are made threads selected from a group comprising jute threads (2), synthetic bulk textured yarn (3), and stiff yarn (4), or a composite yarn (3A) made from union of synthetic bulk textured yarn (3) and stiff yarn (4), where the synthetic bulk textured yarn (3) and the stiff yarn (4) are united or joined together by the process of twisting or mingling or mixing them. The invention also discloses storage bags (1) or furnishing fabrics made from the aforementioned woven fabric (1A) and a method of making aforementioned bags. The invention has the advantage that the fabric and bags are lighter in weight while having required strength at a lower cost than the conventional fabrics made using some of the materials used herein, particularly jute.
D03D 15/02 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used the warp or weft elements being of stiff material, e.g. wire, cane, slat
This invention relates to producing bags for packing and storing of goods. More particularly, the invention relates to flat or tubular leno weave fabric which is comprised of at least one warp thread (6A) that has one of its strands (6B or 6C) made from bulk yarn as weft and/or at least one of its weft threads (5A) is made from bulk yarn, and a bag made from such fabric. The invention addresses the problem of harshness of the leno weave fabric made from stiff yarn, particularly on perishable goods and other goods that can get damaged by harsh packaging. Woven fabrics typically comprise warp and weft structures that formed using warp and weft threads, respectively. Woven slit film tape fabric typically comprises of two sets of threads arranged in warp structure and weft structure. Threads are typically made of multiple slit film tapes. The fabric of the invention has some bulk yarn introduced in the weaving pattern to make the fabric softer than the conventional fabric. This key aspect of the invention has led to bags that are less harsh on the goods, than bags made from conventional leno fabric made from stiff yarn.
The invention relates to an automatic turret type yarn winding device. The invention provides a device and a method to position spindle precisely in turret type automatic winder, during the bobbin changeover. It involves, during the bobbin changeover process, the step of rotating the turret in at least two discrete rotational movements carried out at controlled speeds, whereby the empty bobbin assumes its accurate winding position. In an important inventive aspect of the invention, the turret rotation is controlled by sensing the current in the motors controlling the spindles. The present invention also discloses a system to control motions of the turret and the spindles. It comprises a first control system (10) to control the rotational motion of the turret and a second control system (11) to control the rotational motion of the spindle. It also comprises a master control system (12) which controls both systems (10, 11) and receives signal/information from and sends command to the two control systems (10, 11).
The present invention relates a hot air circulating chamber with air-flow control system used in manufacture of thermo-plastic products such as monofilament, plastic web strips, narrow film strip, multi-filament. Conventional systems do not allow controlling temperature and air-flow in hot air channel/chamber to achieve uniformity. With the increased production speed and stringent product requirements, improved air-flow uniformity and temperature precision in the hot air oven is necessary. Invention discloses an apparatus (1) provided with air-flow path having provision of number of fans (7), optimisation of heater (6) location and increased number of air-flow regulators (8) having control levers (9). Moving web strips (5) enter apparatus into a hot air channel (4) formed between upper chamber (2) and lower chamber (3). Entry point of moving strips into the hot air channel (4) is the web-strip inlet (5A). After getting heat treated, the moving web strips (5) leave the apparatus through the web strip outlet (5B).
The invention discloses a method for producing a storage bag with an integrally formed valve, a resulting bag and an apparatus for producing such a bag. The method is characterised by forming the valve (3) of bag (2) by folding corner (13) of the tubular piece (5) at second open end (8) inwardly to the inside followed by cutting off edge strip (22) of tubular piece (5) with the valve (3) formed and closing the second open (8) end by attaching second sealing strip (25) thereto. In another aspect of the invention at least one hole (29) is made into side wall section (9A and/or 9B) of the tubular piece (5) to establish connection between second sealing strip (25) and at least one side wall (19) of the valve (3). The resultant bag has a valve (3) of height (23) smaller than depth (24) of valve (3) and where second sealing strip (25) is attached to second end (8) of tubular piece (5).
The invention relates to manufacture of storage bags made from tubular fabric and in particular to a device or an apparatus of and method for making composite bags where storage bags have a liner inserted into them. Manual methods of inserting a liner into an outer covering to make composite bags are known, however, these are not suitable for automated bag making machines. The device of the invention discloses a liner insertion platform (15) that is capable of movement in direction transverse to its own plane. It also discloses a pair of liner insertion tubes (15A) that wrap a heat sealed liner cut piece (10C) around them and insert it inside an outer covering cut piece (7). The invention also allows the liner cut piece (10C) to be placed either loosely inside or affixed to the outer covering (7) to make a robust composite bag (1). The invention also discloses a method of making a composite bag using the device disclosed herein.
The invention relates to a device for managing defects in a web material on conversion lines. In particular, the device relates to identifying defective sections of web/web material and rejecting the defective pieces before they enter the downstream processes of a conversion line, such as bag making. In a key aspect of the invention, the defects management device comprises a defects detection unit (3), and a defects management control unit (5) which monitor progress of the defect on the traveling web material (1)and subsequently identifies the section of the of web material containing the defect to be cut, the defects management control unit also communicates with the control unit of the conversion line to operate selectively the cutting unit that cuts the web material into pieces. A method to manage defects in web material comprising the steps of detecting defects in web material, identifying web material piece/section containing defect and rejecting it from the production line it is also disclosed.
Pusher elements that move forward and backward are used for forming valves in sack making. Their settings deteriorate over time causing wear and tear adversely affecting accuracy of pusher element's operation. The invention discloses a device for controlling the motion of a pusher element (1) in an automated sack making apparatus which is used for making a multi-angular fold at a corner of a tubular fabric (7) having separated individual layers. The device has an electro- magnetic device with discrete-step-motion (5) that controls the movement of said pusher element (1), and which in turn comprises a close-loop controller (6), and a motion driver (5 A). A method of controlling the motion of a pusher element (1) in an automated sack making apparatus is also disclosed where a step of controlling positioning of pusher element (1), and its acceleration during its forward movement, and its deceleration in its reverse movement precisely and accurately using an electro-magnetic device with discrete step motion (5) in relation to the travelling fabric (7) is disclosed.
The present invention relates to a system and a method for accurately estimating the thickness of extruded plastic films. In particular, the invention relates to automatic allocation of a recipe-dependent calibration factor and a scanning system dependent calibration factor to the measured thickness to arrive at an accurate estimate. It also discloses making changes to the settings of the film forming die to reduce deviation of the actual thickness from the required thickness of the film. It addresses the problem faced by the conventional extrusion systems where the films are often of unacceptably non-uniform thickness. The invention comprises a PLC Controller unit (5) that is capable of receiving data from and sending it, in the form of electric signals, to other components of the system. PLC controller (5) makes computations of estimated actual thickness computation and computation of deviation of it from the required thickness. The PLC controller is also optionally capable of receiving instructions/data from and sending it to film forming die (6) to adjust the die-lip bolt settings.
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
46.
DEVICE AND METHOD FOR FORMING A BOTTOM OPENING ON A BAG BODY
The invention relates to a device and a method for forming a bottom opening (8) between bag sections (2', 2'') at the open end region (9) of a tubular bag body (2), comprising a transport device (3) for transporting the bag body (2) in a transport direction (5) transversely to its longitudinal extension (6), and an opening device (7) for forming the bottom opening (8) between the bag sections (2', 2'') at the open end region (9) of the tubular bag body (2). According to the invention, the opening device (7) comprises at least two spreading elements (10) in the form of wedge elements (12; 12', 12'', 12'''), which are successively arranged in the direction of transport (5) of the tubular bag body (2) and which are provided with edge surfaces (14; 14', 14'') rising counter to the rotational direction (13), by which the bag sections (2', 2'') can be spread apart at the open end region (9) of the tubular bag body (2) during the transport thereof on the transport device (3), wherein the wedge elements (12; 12', 12'', 12''') of successive spreading elements (10) have different wedge heights (h), which increase in the direction of transport (5) of the tubular bag body (2), preferably perpendicular to the support surface (4) for the tubular bag body (2) on the transport device (3).
B31B 19/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents
47.
DEVICE AND METHOD FOR TRANSPORTING TUBE-SHAPED BAG BODIES
The invention relates to a device (1) and to a method for transporting tubular bag bodies (2), said device comprising a longitudinal transport apparatus (3), by means of which the tubular bag bodies (2) can be transported substantially in the direction (3') of the longitudinal extent of the bag bodies, a transverse transport apparatus (8), by means of which the tubular bag bodies (2) can be transported substantially perpendicularly to the longitudinal extent of the bag bodies, and a transfer apparatus (9) for transferring the tubular bag bodies (2) from the longitudinal transport apparatus (3) to the transverse transport apparatus (8), wherein the transfer apparatus (9) has at least an upper bearing surface (10) and a lower bearing surface (11) for the tubular bag bodies (2), wherein a track-switch element (12) that can be switched between an upper position and a lower position is provided, wherein the tubular bag bodies (2) can be fed to the upper bearing surface (10) in the upper position of the track-switch element (12) and to the lower bearing surface (11) in the lower position of the track-switch element (12).
B31B 19/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents
48.
DEVICE AND METHOD FOR FORMING A BOTTOM OPENING ON A BAG BODY
The invention relates to a device and to a method for forming a bottom opening (8) between bag segments (2', 2") at the open end region (9) of a tubular bag body (2), comprising a transport apparatus (3) for transporting the bag body (2) in a transport direction (5) transverse to the longitudinal extent (6) of the bag body and comprising an opening apparatus (7) for forming the bottom opening (8) between the bag segments (2', 2") at the open end region (9) of the tubular bag body (2), wherein the opening apparatus (7) has a pre-opening station (23), wherein the opening apparatus (7) has a spreading element (10) that can be rotated about an axis of rotation (11), wherein the pre-opening station (23) has a guiding element (24, 25) having a guiding surface (24', 25') for one of the bag segments (2', 2") at the open end region (9) of the tubular bag body (2), which guiding surface is tilted from the transport direction (5), wherein the guiding surface (24', 25') is connected to a suctioning element (26) for suctioning the bag segment (2', 2") onto the guiding surface (24', 25').
B31B 19/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents
49.
METHOD AND APPARATUS FOR PRODUCING BAGS FROM A WOVEN-FABRIC TUBE
In a method for producing bags from a woven-fabric tube (1), the flat woven-fabric tube (1) is fed from a tube-unwinding apparatus, or a tube-forming apparatus, to a cutting device, in which the woven-fabric tube (1) is cut to length along a cutting line (8) to give tubular bag bodies (7) which are open at both ends, wherein the operation of cutting the woven-fabric tube (1) to length takes place in a longitudinal-transportation section, in which the woven-fabric tube (1) and the tubular bag bodies (7) are transported in the longitudinal direction of the woven-fabric tube (1), wherein a cutting-line region (6) of the woven fabric at at least one open end of the tubular bag body (7) is heat-treated prior to this open end being closed.
B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
D04G 1/00 - Making nets by knotting of filamentary material
B31B 19/60 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for uniting opposed surfaces or edges, or for taping
In an apparatus which is intended for closing bags made of woven fabric and to which tubular bag bodies can be fed, comprising an adhesive-applying apparatus for continuously applying adhesive in an adhesive-bonding region, and also comprising a transporting apparatus for transporting the tubular bag bodies through the adhesive-bonding region in a direction transverse to their longitudinal axis, this allowing adhesive to be applied to a strip-like region of the tubular bag bodies, provision is made for an adhesive-removal apparatus, which is separate from the transporting apparatus, to be arranged beneath the adhesive-bonding region, in order to remove the adhesive applied by the adhesive-applying apparatus in the interspace between the individual tubular bag bodies.
B31B 19/60 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for uniting opposed surfaces or edges, or for taping
B05C 5/00 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
B05C 11/10 - Storage, supply or control of liquid or other fluent materialRecovery of excess liquid or other fluent material
B31B 1/60 - Uniting opposed surfaces or edges; Taping
In a method for closing a tubular sack body made from a woven fabric of monoaxially drawn polymer, in particular polyolefin or polypropylene, ribbons, comprising the production of a bottom fold in such a way that the sack has a substantially rectangular bottom, at least two layers of the bottom which overlap one another at least partially are welded to one another in the region of their overlap by way of at least one welded seam in order to close the bottom, wherein the at least one welded seam extends at least over the length of the broad side and/or the narrow side of the rectangular bottom.
B65D 30/18 - Sacks, bags or like containers characterised by shape or construction with block bottoms
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
B31B 19/60 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for uniting opposed surfaces or edges, or for taping
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