EP0584309B1 - Verfahren und vorrichtung zum fixieren der enden einer auf einem baum geordnet aufgewickelten fadenschicht - Google Patents

Verfahren und vorrichtung zum fixieren der enden einer auf einem baum geordnet aufgewickelten fadenschicht Download PDF

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Publication number
EP0584309B1
EP0584309B1 EP93903791A EP93903791A EP0584309B1 EP 0584309 B1 EP0584309 B1 EP 0584309B1 EP 93903791 A EP93903791 A EP 93903791A EP 93903791 A EP93903791 A EP 93903791A EP 0584309 B1 EP0584309 B1 EP 0584309B1
Authority
EP
European Patent Office
Prior art keywords
welding
foil
yarns
warp
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93903791A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0584309A1 (de
Inventor
Martin Plaschy
Felix Walser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staeubli AG
Original Assignee
Staeubli AG
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Filing date
Publication date
Application filed by Staeubli AG filed Critical Staeubli AG
Publication of EP0584309A1 publication Critical patent/EP0584309A1/de
Application granted granted Critical
Publication of EP0584309B1 publication Critical patent/EP0584309B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/16—Apparatus for joining warp ends
    • D03J1/18—Apparatus for joining warp ends for joining, e.g. tying, a complete series of fresh warp threads to the used warp threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/02—Auxiliary apparatus combined with or associated with looms for treating warp, e.g. cleaning, moistening

Definitions

  • the present invention relates to a method for welding the ends of a layer of thread wound up in an orderly manner on a tree with a film, in which the threads are aligned and stretched at their free ends.
  • Such processes are used in textile companies in various stages of the production process, for example in warping, warping or sizing, when pulling in or tying up, or in weaving.
  • the fixation is usually carried out with a rail or with a comb, which always requires a not inconsiderable effort to produce the fixation.
  • the rails or combs used for fixing are generally relatively heavy and unwieldy, so that they are often omitted and the thread ends are fixed by linking or tying, which, however, complicates handling in the next processing stage.
  • the invention is now to provide a method of the type mentioned which is simple, universal and is quickly applicable and ensures optimal maintenance of the existing order of the thread layer.
  • the layer of the threads is sandwiched between two foils, that the foil is then welded to the threads, that the threads are fixed in their mutual position in the thread layer and that, in preparation a weaving chain for weaving, one of the two foils is provided as a run-in part for threading the warp thread layer into a weaving machine and has a length which is clearly superior to the end of the warp thread layer.
  • the warp threads are glued to a piece of fabric in the weaving machine with the aid of foils made of synthetic resin, the said Films serve as an adhesive between the fabric and the warp threads and a fabric tape covering their top, so that there is a multilayer structure.
  • this method is not bound to the weaving machine when used to prepare a drawn-in chain for weaving, but can be carried out at any suitable point between the drawing-in machine and the weaving machine.
  • the preparation time for weaving on the weaving machine itself is significantly less than five, for example three minutes, because the welded lot is so small that it can easily be threaded through the sand tree. Threading in the sand tree is supported by the rigidity of the film. This means that the film is much easier to handle than a strip of fabric.
  • Another advantage compared to a strip of fabric is the elasticity of the film, which allows the thread tension to be compensated, which means that fabric of perfect quality is produced as early as 10-20 cm after the welding point.
  • the invention further relates to a device for performing the above-mentioned method, which has two parallel and adjustable relative to each other between a rest position and a working position welding bars, which in their rest position form a gap for the passage of the threads and the reception of the film and by a rotatable, Brush tree height-adjustable relative to the gap on which the thread layer can be placed for tensioning and for laying on the thread layer is vertically displaceably mounted on the welding bar, is marked.
  • the invention is not restricted to this application, but can be used in the entire weaving mill wherever a tree with a layer of thread wound up on it in an orderly manner Vorbaum, a slip tree, a warping roller or a warp beam, is present.
  • the following description describes all essential process steps and a specific device for welding a warp with a film; based on this description, it will be easy for the person skilled in the art to transfer the described device to the requirements of other applications and to adapt them.
  • the warp welding device is mounted on a mobile frame 1 and essentially consists of a frame 2 with a fixed lower welding bar 3 and one in the frame 2 in the direction of the arrow A stroke-adjustable upper welding bar 4, a brush tree 5 connected to the frame 2, a feed control device 6 with a control panel connected to it (not shown), a roller 7 with welding foil 8 and a drive for the upper welding bar symbolized by two cylinders 9 4. Both the two welding bars 3 and 4 and the drive 9 are connected to the feed / control unit 6.
  • the frame 1 preferably consists of parts of the knotting frame used for the knitting machine USTER TOPMATIC (USTER - registered trademark of Zellweger Uster AG), the brush tree 5 is also known from this knotting frame and also from the drawing machine USTER DELTA.
  • the height of the frame 2 is adjustable and is chosen so that the lower welding bar 3 is slightly below the level of the thread ends hanging from the reed carried by the crockery trolley or pull-in trolley. As a result, the welding device can be moved up to the thread ends immediately after being drawn in. With reference to FIG. 1, the dishes with the warp threads drawn in would thus be located on the right behind the frame 1.
  • the welding foil 8 rolled up on the roll 7 and adapted in width to the warp thread layer to be processed is placed over the lower welding bar 3 pulled, with a suitable cutting device, such as is known for example for household foils, cut off in a width of a few, preferably about 4 cm, and fixed at the ends of the lower welding bar 3 with quick releases.
  • the warp threads of the drawn-in chain are then drawn, for example with a thread clip, between the two welding bars 3 and 4 and placed over the brush tree 5.
  • the warp threads are evenly tensioned by a rotary movement of the latter in the counterclockwise direction caused by a lever 10.
  • the brush tree 5 is lowered so far while maintaining the warp thread tension that the warp threads rest with certainty on the strip of welding foil 8 fixed to the lower welding beam 3.
  • a piece with a greater length of, for example, 0.8 to 1.2 meters is cut off from the welding foil 8, placed on the warp thread layer and likewise fastened to the lower welding bar 3 with quick-release devices.
  • the welding film is then attached to the welding bar 3 in the region of its rear transverse edge and hangs down over the brush tree 5 at the front of the frame 1. This relatively long film part serves to facilitate threading into the goods rewinder of the weaving machine by acting as a running-in part during threading and being drawn in by the sand tree.
  • the welding film 8 is made of polyethylene and has a maximum thickness of 0.35 mm; it melts during the welding operation and flows around the individual warp threads. Practical tests have shown that this is the case under all conditions, even with very dense chains and even with two fabric layers.
  • the welding operation can take place.
  • the upper welding bar 4 whose distance from the lower welding bar 3 is about 20 cm or more in the rest position, is moved downward by its drive 9 and brought into a defined position relative to the lower welding bar 3, in which it presses against it .
  • the adjustment path of the upper welding bar 4 is determined by proximity switches (not shown) arranged on the frame 2.
  • the lower welding bar 3 is resiliently mounted so that there is a defined pressure between the two welding bars in the defined mutual position.
  • the two welding bars 3 and 4 are heated for a certain time to a certain temperature of approximately 80 ° -100 ° C., the intensity of the welding being determined by the duration of this heating. In practice it has been shown that this duration is a maximum of about 12 to 15 seconds. This time can be set on the control panel. When it has expired, the upper welding bar 4 remains in its working position for a few seconds during the cooling phase and is then moved again, preferably automatically, to its rest position.
  • the end of the warp thread layer welded to the foils 8 is released and the drawn-in warp with its warp threads clamped relative to the reed can be transported to the weaving machine or to an intermediate storage.
  • the film section acting as an inlet part needs to be threaded into the sand tree. This operation is significantly less than 5 minutes and usually not more than 3 minutes and is therefore only a fraction of the 20 minutes required for the usual manual tying of the warp threads knotted together in bundles to a remnant of fabric.
  • each welding bar consists of a carrier 12 with a support layer 13 for a resistance wire 14 and a cover film 15 covering the resistance wire 14 against the outside
  • the two polyethylene films 8 and the warp thread layer KF lying between the films and to be welded to them can be seen.
  • the support layer 13 is made of glass fiber reinforced plastic, preferably made of polytetrafluoroethylene, and the cover film 15, which serves to prevent the film 8 from sticking to the resistance wire 14, likewise consists of the polytetrafluoroethylene mentioned.
  • the resistance wire 14, which consists, for example, of a tungsten alloy, is stretched in the longitudinal direction and projects beyond the support layer 13 at its ends, as a result of which the foils 8 are not weakened in the region of their edge parts which project over the width of the warp thread layer during welding. The latter is important in order to prevent the foils 8 from tearing laterally when drawn into the weaving machine.
  • the resistance wire 14 is subjected to a corresponding tensile force which is generated, for example, by levers under spring force.
  • Variants of the described method can consist in fixing the warp threads not by welding with a film but by clamping them by clamping the warp thread layer with flat profiled rails, with several on the profiled rails or on one of them across the width of the warp layer for threading into the conveyor belts serving the loom are attached.
  • These conveyor belts of which about 4 are available, are designed like a belt and have at their free end a section with increased rigidity that makes threading easier.
  • the main difference is a vertically arranged roll 16 on which a narrow and a wide film strip 17 and 17 'are wound.
  • the narrow film strip 17 ' which is a few centimeters wide, is placed on the lower welding bar 3 (FIG. 1) and the wide film strip 17, which is approximately 0.8 to 1.2 meters wide, comes on top of the warp thread layer and is intended as an inlet part for weaving.
  • the displaceable clamping rail 20 is set such that the distance between it and the film separating knife 19 corresponds exactly to the film length required for the respective warp width.
  • the two films 17 and 17 ' are each drawn from the roll 16 to the clamping rail 20, then clamped by this and the fixed clamping rail 18 and finally cut off with the separating knife 1.
  • the upper welding bar 4 is driven by a single motor-driven spindle 9 ', the upper welding bar 4 being connected to the upper cross bar of the frame 2 via scissor joints.
  • the control panel 6 ' is shown on the right side of the frame 1 in the figure.
  • the described device is extremely flexible and versatile due to its displaceability and height adjustability and the possibility of adapting the length of the foils precisely to the respective warp width. There are no problems with this device to approach any textile machine, such as drawing-in machines, sizing machines or looms, and to carry out the operations described there.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
EP93903791A 1992-03-16 1993-03-10 Verfahren und vorrichtung zum fixieren der enden einer auf einem baum geordnet aufgewickelten fadenschicht Expired - Lifetime EP0584309B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH00832/92A CH686961A5 (de) 1992-03-16 1992-03-16 Verfahren und Vorrichtung zum Fixieren der Enden einer auf einem Baum geordnet aufgewickelten Fadenschicht.
CH832/92 1992-03-16
PCT/CH1993/000063 WO1993019233A1 (de) 1992-03-16 1993-03-10 Verfahren und vorrichtung zum fixieren der enden einer auf einem baum geordnet aufgewickelten fadenschicht

Publications (2)

Publication Number Publication Date
EP0584309A1 EP0584309A1 (de) 1994-03-02
EP0584309B1 true EP0584309B1 (de) 1996-08-28

Family

ID=4196244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93903791A Expired - Lifetime EP0584309B1 (de) 1992-03-16 1993-03-10 Verfahren und vorrichtung zum fixieren der enden einer auf einem baum geordnet aufgewickelten fadenschicht

Country Status (9)

Country Link
US (1) US5514234A (ja)
EP (1) EP0584309B1 (ja)
JP (1) JPH06507947A (ja)
CH (1) CH686961A5 (ja)
CZ (1) CZ282598B6 (ja)
DE (1) DE59303558D1 (ja)
ES (1) ES2091597T3 (ja)
TW (1) TW228503B (ja)
WO (1) WO1993019233A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2131182T3 (es) * 1993-12-22 1999-07-16 Benninger Ag Maschf Procedimiento y dispositivo para bobinar bandas para urdido.
BE1008059A3 (nl) * 1994-02-02 1996-01-03 Picanol Nv Werkwijze en inrichting voor het trekken op kettingdraden.
EP2199443B1 (de) * 2008-12-19 2016-03-16 Stäubli AG Pfäffikon Mobile Einzieheinheit
EP2662481B1 (de) * 2012-05-10 2016-03-02 Stäubli Sargans AG Spannvorrichtung, Fadenkreuzeinlesemaschine, Einziehmaschine und Verfahren zum Spannen einer Vielzahl von Kettfäden
CN112220624B (zh) * 2020-10-27 2021-11-30 董晓兰 一种便于孕妇进食的医疗护理床

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537007A (en) * 1946-11-27 1951-01-09 Jr William G Abbott Separating, positioning, and uniting thread
NL6616685A (ja) * 1966-11-26 1968-05-27
US4211594A (en) * 1975-11-05 1980-07-08 Sigri Elektrographit Gesellschaft Mit Beschrankter Haftung Joining together shaped bodies of polytetrafluoroethylene
EP0063546B1 (en) * 1981-04-16 1984-11-07 Quikoton Ag Join between the ends of textile materials
CH669303GA3 (en) * 1982-10-25 1989-03-15 Warp end bonding - uses fusible strips to secure warp ends to give continuous passage through a treatment appts.
JP2786690B2 (ja) * 1989-09-26 1998-08-13 津田駒工業株式会社 織機の機掛け方法
US5032214A (en) * 1989-11-03 1991-07-16 Williams Specialty Co. Linear beam splicer
DE4116194B4 (de) * 1991-05-17 2004-09-09 Sucker-Müller-Hacoba GmbH & Co Vorrichtung zum Verbinden von Kettbahnen beim Zettelbaumpartiewechsel

Also Published As

Publication number Publication date
ES2091597T3 (es) 1996-11-01
CZ242093A3 (en) 1994-03-16
JPH06507947A (ja) 1994-09-08
DE59303558D1 (de) 1996-10-02
CZ282598B6 (cs) 1997-08-13
WO1993019233A1 (de) 1993-09-30
CH686961A5 (de) 1996-08-15
EP0584309A1 (de) 1994-03-02
TW228503B (ja) 1994-08-21
US5514234A (en) 1996-05-07

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