EP0460129B1 - Vorrichtung zum einziehen von kettfäden - Google Patents

Vorrichtung zum einziehen von kettfäden Download PDF

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Publication number
EP0460129B1
EP0460129B1 EP90917134A EP90917134A EP0460129B1 EP 0460129 B1 EP0460129 B1 EP 0460129B1 EP 90917134 A EP90917134 A EP 90917134A EP 90917134 A EP90917134 A EP 90917134A EP 0460129 B1 EP0460129 B1 EP 0460129B1
Authority
EP
European Patent Office
Prior art keywords
gripper
clamping
thread
hook
band
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
EP90917134A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0460129A1 (de
Inventor
Hans Wilhelm
Raymond Schelling
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Staeubli AG filed Critical Staeubli AG
Publication of EP0460129A1 publication Critical patent/EP0460129A1/de
Application granted granted Critical
Publication of EP0460129B1 publication Critical patent/EP0460129B1/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
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

  • the invention relates to a device for drawing in warp threads in tableware elements of a weaving machine, with an oscillatingly drivable, needle-shaped pulling-in element for the warp threads.
  • the pull-in member is formed by a so-called pull-in needle, which has a hook-like end, with the aid of which the warp threads are caught and drawn in.
  • these pull-in needles are also not advantageous in terms of textile technology. Because the warp threads are practically deflected by 180 ° in the naturally very thin hook-shaped end and slide over their deflecting edge when pulled in, which means a not inconsiderable strain and possibly also influencing the thread on its surface.
  • a pull-in device which has a clamping gripper which consists of two parts which are displaceable in the direction of movement of the clamping gripper and which clamp the warp thread in one position so that it is drawn in by the moving clamping gripper.
  • the warp thread is bent and clamped in the clamping hook.
  • the individual parts of the clamp gripper each carry out an absolute movement and a relative movement to one another, which results in complex and unreliable control of the movements mentioned.
  • the warp thread can be broken by the special type of clamping.
  • the invention is now intended to provide a drawing-in element with which the warp threads are drawn in as gently and safely as possible.
  • the pull-in member has a clamping gripper with two parts which are arranged such that they can move relative to one another transversely to the oscillating movement of the pull-in member.
  • the clamping gripper clamps the warp threads and not just hooks them into them, a safe insertion of all types of warp threads is guaranteed. These are also protected as much as possible, since the warp threads are only clamped at one point, but are not otherwise stressed by additional friction.
  • a preferred embodiment of the pull-in member is characterized in that the clamping gripper is carried by a flexible gripper band and that a channel-like guide is provided for the pull-in member.
  • the inventive design of the pull-in device and its guide channel enable an increase in the operating speed of the pull-in machine while at the same time improving its reliability, on the one hand by minimizing the mass of the pulling-in device and on the other hand by guiding it exactly. In this way, the pull-in element is precisely positioned even at a high pull-in frequency, so that incorrect feeds are practically impossible.
  • the drawing-in machine consists of a base frame 1 and of various assemblies arranged in it, each of which represents a functional module.
  • a warp beam carriage 2 with a warp beam 3 arranged on it can be seen.
  • the warp beam carriage 2 has a so-called lifting device 4 for holding a frame 5, on which the warp threads KF are stretched, coupled. This clamping takes place before the actual pulling-in and at a location separate from the drawing-in machine, the frame 5 being positioned at the lower end of the lifting device 4 in the immediate vicinity of the warp beam 3.
  • a monitor 8 which belongs to an operating station and is used to display machine functions and machine malfunctions and for data input.
  • the operator station which forms part of a so-called programming module, also contains an input stage for the manual input of certain functions, such as creeper, start / stop, repetition of processes, and the like.
  • the drawing-in machine is controlled by a control module containing a control computer, which is arranged in a control box 9.
  • this control box contains a module computer for each so-called main module, the individual module computers being controlled and monitored by the control computer.
  • the main modules of the drawing machine are, in addition to the modules already mentioned, drawing module, yarn module, control module and programming module, the strand, the lamella and the sheet module.
  • the warp threads and the individual elements into which the warp threads are to be fed are fed in on the upgrade side, and the so-called dishes with the warp threads drawn in can be removed on the dismantling side.
  • the warp thread guard slats LA Immediately behind the level of the warp threads KF are the warp thread guard slats LA, behind them the healds LI and even further behind the reed WB.
  • the lamellae LA are stacked in hand magazines, and the full hand magazines are hung in inclined feed rails 11, on which they are transported to the right, towards the pull-in needle 7. There they are separated and brought into the feed position. After pulling in, the lamellae LA arrive on lamella support rails 12 on the dismantling side.
  • the strands LI are lined up on rails 13 and manually or automatically shifted to a separation stage on them. Then the healds LI are individually brought into their retracted position and, after they have been drawn in, distributed to the corresponding heald frames 14 on the dismantling side. The reed is also gradually moved past the pull-in needle 7, the corresponding leaf tooth being opened for the pull-in. After it has been drawn in, the sheet is also on the dismantling side. To the right of the heald frames 14 is a part of the reed WB. This illustration is to be understood purely for illustrative purposes, since the reed is of course located on the upgrade page in the position of the frame 5 shown.
  • a so-called crockery trolley 15 is provided on the dismantling side. This is inserted into the base frame 1 together with the slat support rails 12, heald frames 14 and a holder for the reed attached to it and carries the dishes with the drawn-in warp threads KF after being drawn in. At this time, the warp beam carriage 2 with the warp beam 3 is located directly in front of the dishwashing carriage 15. Now, using the lifting device 4, the dishes are reloaded from the dishwashing carriage 15 onto the warp beam carriage 2, which then carries the warp beam 3 and the pulled-in dishes and to the weaving machine in question or can be moved to an interim storage facility.
  • the main component of the pull-in needle 7 forming the pull-in module is formed by a gripper belt 16 and a clamping gripper 17 carried by the latter, which are guided in a channel-like guide 18 in the stroke direction (arrow P).
  • This extends from the frame 5 in a straight direction to an arcuate end part 18 'and is interrupted in the area of the tableware elements (slats LA, strands LI and weaving reed WB) in order to feed the tableware elements to the feed position and to transport them further after they have been drawn in ( Arrow S) to enable.
  • the gripper belt 16 is provided with evenly spaced transport holes 19 and is driven by a motor-driven belt wheel 20 which has cam-shaped projections which engage in the transport holes 19 on its circumference.
  • FIG. 3 shows, on an enlarged scale of approximately 3.5: 1, the front end of the gripper belt 16 and the clamp gripper 17 attached to it, which consists of two parts, a gripper hook 17 'and a clamp part 17' '. These two parts are designed to be resilient to one another, preferably in such a way that the clamping part 17 ′′ at its tip is spread away from the gripper hook 17 ′ by approximately 2.5 mm without external force.
  • the warp thread KF to be drawn in is offered to the clamping gripper 17 in such a way that when the clamping gripper is moved into the thread layer it reaches the gap between the hook 17 'and the clamping part 17' '.
  • the warp thread KF is also presented to the clamp gripper 17 in an oblique position, in such a way that the gripper hook 17 ', which is open at the bottom, presses on the thread from above when it is retracted, so that it automatically engages the hook mouth slides. If the gripper 17 now moves out of the thread layer, the warp thread is initially carried along by the gripper hook until the gripper 17 enters the guide 18. Then the hook and the clamping part are pressed together and the warp thread KF is clamped. To increase the clamping effect, both parts of the clamping gripper 17 have teeth 21. The clamping gripper 17 is thus formed on its front part which clamps the warp thread in the manner of a pair of tweezers which are pressed together by the guide 18.
  • the gripper hook 17 'and the clamping part 17' 'are made of metal, the gripper belt 16 is preferably a carbon fiber belt.
  • the gripper hook 17 ' is longer in the region of its right end in FIG. 3 than the clamping part 17' 'and has on its part projecting beyond the clamping part 17' 'cylindrical projections, the division of which corresponds to that of the transport holes 19, and their diameter relative to the transport holes 19 has slight excess.
  • the gripper belt 16 is pressed with its transport holes 19 onto these projections, as a result of which the connection between the clamping gripper 17 and the gripper belt is established. This connection is releasable and has the advantage that if the gripper belt 16 breaks, the clamp gripper 17 can be reused.
  • the two parts of the clamping gripper 17 are connected to one another by spot welding. This results in a sandwich design.
  • the gripper belt 16 is thinner than the clamping gripper 17 and thus has lateral play in the guide channel 18, even if the gripper hook and the clamping part are pressed together by the guide channel (see also FIG. 8).
  • 4 and 5 show a top view and a front view of the guide channel
  • FIG. 6 shows a longitudinal section
  • FIGS. 7a to 7c cross sections along the lines AA (Fig. 5), BB (Fig. 6) and CC (Fig 4), all on a 1: 1 scale
  • FIG. 8 shows an enlarged detail from FIG. 7c on a 10: 1 scale.
  • the guide channel 18 essentially consists of a profile rod 22 made of aluminum or of a suitable plastic, such as, for example, polymethylene oxide, which has a guide groove 23. This is covered on its open side at its edges by two elongated cover rails 24, between which there is a slot 25 for the lateral exit of a warp thread drawn into the guide channel 18.
  • clamping jaws 26 are arranged, which are pressed by springs 27 against the cover rails 24.
  • the clamping jaws 26 are penetrated by stop and guide bolts 28, which ensure that there is a gap between the cover rails 24 and the clamping jaws 26 of such a width that gripper hooks 17 'and clamping part 17' 'are just sufficiently compressed.
  • the profile bar 22 is screwed onto a bearing block 30 indicated by dash-dotted lines in FIG. 7c via suitable supports 29.
  • the stop and guide bolts 28 are omitted and clamping jaws 26 'are used which have stops 28' contacting the cover rails 24.
  • the guide channel 18 has a plurality of interruptions 31, in each of which a thread ejector lever 32 is arranged.
  • These ejector levers 32 can, as can be seen from FIGS pneumatically driven pistons attached, downwardly projecting fingers are formed, which are in their rest position shown in Fig. 4 with full lines behind the plane of the looper belt 16 and are moved to the thread ejection in the direction of arrow S (Fig. 2) in the dashed position .
  • rotating thread ejectors can also be used.
  • the thread ejectors are designed like impellers and consist of fingers projecting radially from a hub.
  • the hub is mounted on a bearing block fastened to the profiled bar 22 and can be driven by a motor, the fingers dipping into the interruption 31 from above, turning forward towards the slot 25 and moving the thread out of the guide channel 18.
  • the individual thread ejectors are monitored by light barriers crossing the plane of movement of the fingers.
  • FIG. 9 shows a section through the band wheel 20 and through the part of the guide channel which bears against it and which is not covered here by cover rails 24. This is not necessary because the belt wheel 20 presses against the front of the gripper belt 16 and is in engagement with the corresponding transport holes 19 with its cam-shaped projections 33.
  • the cam-shaped projections 33 are hemispherical and have a diameter of 1.5 to 2 mm, preferably 1.8 mm and a pitch of 4 mm.
  • the clamping gripper 17 must first release the thread. This release takes place by a controlled opening of the gripper hook 17 'and the clamping part 17''in the region of the rear stopping point of the clamping gripper 17, which is based on FIG. 2 in the interruption K between the part of the guide channel 18 at the belt wheel 20 and in the direction of Webblatt WB towards the next part.
  • the clamping gripper 17 is opened in that the part of the guide channel 18 that guides the clamping gripper, i.e.
  • the guide gap between cover rails 24 and clamping jaws 26, widens in a funnel shape by appropriate shaping of the clamping jaws, so that the clamping part 17 ′′ can spring away from the gripper hook 17 ′.
  • This extension is preferably located in the region of the end of the part of the guide channel 18 which is arranged between the belt wheel and the reed and faces the interruption K.
  • the thread is now pulled through the interruption K by the hook 17 'until the clamping gripper 17 reaches its rear turning point when entering the part of the guide channel 18 at the belt wheel 20. Even before this reversal point is reached, the thread is placed through a lever in the suction opening of a suction nozzle, which draws the thread in and thereby fixes it.
  • the lever is designed like a pointer with a hook-shaped end. It is guided between two circular sector-shaped disks arranged transversely to the guide channel and projects with its hook-shaped end between the disks during its working stroke.
  • the thread located in the guide channel 18 lies on the circumference of the disks in front of the pointer-like lever and is moved laterally out of its path by this lever and guided along the contour of the disks to the suction nozzle.
  • the pointer-like lever is driven by an eccentric such that its hook-shaped end during the idle stroke, i.e. from the suction nozzle back to the guide channel 18, runs below the contour of the disks mentioned and then pierces them before the next working stroke, and so on.
  • the suction nozzle is preferably inclined at approximately 45 ° to the axis of the guide channel with its suction opening, which enables an optimal takeover of the thread offered.
  • the USTER textile testing equipment has proven to be the most suitable suction nozzle TENSORAPID and USTER TESTER (USTER - registered trademark of Zellweger Uster AG) used suction nozzle.
  • FIG. 12 shows a detail of the takeover of a warp thread KF by the clamping hook 17 (FIG. 2).
  • a sensor is arranged in the plane of movement of the loop-shaped warp thread KF, which checks each time it is pulled in whether a warp thread has really been drawn in.
  • This sensor consists of a resilient sensor bracket 34 with a fixed counterpart 35 which overlap one another.
  • the sensor bracket 34 is pivoted away from the counterpart 35 into the position shown in dashed lines, which is detected by a suitable sensor, for example by an inductive sensor 36.
  • the warp thread to be drawn in is therefore always under control, which guarantees maximum reliability and operational safety. This inevitably leads to a further increase in the productivity of the pulling-in machine described, which is already increased by the proposed use of a clamping gripper and gripper belt. In addition there is the extremely gentle treatment of the warp threads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Knitting Machines (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)
  • Radiation-Therapy Devices (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Ropes Or Cables (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
EP90917134A 1989-12-22 1990-12-06 Vorrichtung zum einziehen von kettfäden Expired - Lifetime EP0460129B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH4598/89 1989-12-22
CH4598/89A CH679598A5 (cs) 1989-12-22 1989-12-22
PCT/CH1990/000283 WO1991010003A1 (de) 1989-12-22 1990-12-06 Vorrichtung zum einziehen von kettfäden

Publications (2)

Publication Number Publication Date
EP0460129A1 EP0460129A1 (de) 1991-12-11
EP0460129B1 true EP0460129B1 (de) 1995-06-28

Family

ID=4279080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90917134A Expired - Lifetime EP0460129B1 (de) 1989-12-22 1990-12-06 Vorrichtung zum einziehen von kettfäden

Country Status (15)

Country Link
US (1) US5249339A (cs)
EP (1) EP0460129B1 (cs)
JP (1) JP2913422B2 (cs)
KR (1) KR0140862B1 (cs)
AT (1) ATE124477T1 (cs)
AU (1) AU6742390A (cs)
CA (1) CA2045565A1 (cs)
CH (1) CH679598A5 (cs)
CZ (1) CZ283051B6 (cs)
DE (1) DE59009349D1 (cs)
DK (1) DK0460129T3 (cs)
ES (1) ES2073590T3 (cs)
PT (1) PT96340A (cs)
RU (1) RU2028394C1 (cs)
WO (1) WO1991010003A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147992A1 (de) 2008-07-25 2010-01-27 Stäubli AG Pfäffikon Einziehmaschine und Verfahren zum Einziehen von Kettfäden einer Webkette in Elemente eines Webgeschirrs

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682676A5 (de) * 1991-01-10 1993-10-29 Zellweger Uster Ag Fadenwächter.
CH687714A5 (de) * 1993-09-13 1997-01-31 Stsubli Ag Zweigwerk Sargans Vorrichtung zur Handhabung von Litzen fuer Kettfadeneinziehmaschinen.
DE19724893A1 (de) * 1997-06-12 1998-12-17 Falk Hayo Sanders Verfahren zur Herstellung von Webware
US6554930B1 (en) 1998-12-22 2003-04-29 The Goodyear Tire & Rubber Company Method and apparatus for connecting cords/filaments
WO2000037722A1 (en) * 1998-12-22 2000-06-29 The Goodyear Tire & Rubber Company Method and apparatus for connecting cords/filaments
EP2199443B1 (de) 2008-12-19 2016-03-16 Stäubli AG Pfäffikon Mobile Einzieheinheit
CN106012252B (zh) * 2016-07-29 2017-10-03 江阴市通源纺机有限公司 自动箭带穿综机构
EP3772549B1 (en) 2019-08-05 2023-07-12 Stäubli Sargans AG Drawing-in gripper, drawing-in machine including such a gripper and process for drawing-in warp yarns on such a drawing-in machine
CN117144537B (zh) * 2023-10-31 2023-12-29 江苏环鼎纺织科技有限公司 一种面料用穿综装置及方法
CN117568991B (zh) * 2024-01-15 2024-04-26 江苏永固纳米科技有限公司 一种综丝用自动装配设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH418252A (de) * 1964-12-18 1966-07-31 Zellweger Uster Ag Vorrichtung zum Halten der Enden eingezogener Kettfäden bei Kettfadeneinziehmaschinen
CH479735A (de) * 1968-12-20 1969-10-15 Zellweger Uster Ag Webketteneinziehmaschine
DK127013B (da) * 1971-06-17 1973-09-10 Titan Textile Machines As Apparat til enkeltvis udskillelse af lidser eller lameller fra en række lidser eller lameller.
US3787938A (en) * 1972-06-12 1974-01-29 Barber Colman Co Method and apparatus for drawing in warp threads
JPS5135757A (cs) * 1974-09-18 1976-03-26 Dornier Gmbh Lindauer
DE2902729C2 (de) * 1979-01-25 1982-04-01 Lindauer Dornier Gmbh, 8990 Lindau Schußfadeneintragorgan für schützenlose Webmaschinen
DE3210921C1 (de) * 1982-03-25 1983-09-29 Lindauer Dornier Gmbh, 8990 Lindau Vorrichtung zum Einziehen von Kettfaeden in bereitgestellte Weblitzen und Lamellen
CH663040A5 (de) * 1984-06-18 1987-11-13 Bopp & Co Ag G Maschine zum einziehen von kettfaeden in einen webkamm.
DE3527202C1 (de) * 1985-07-30 1986-10-09 Lindauer Dornier Gmbh, 8990 Lindau Greiferstange fuer schuetzenlose Webmaschinen
US4894893A (en) * 1987-06-11 1990-01-23 C K D Kabushiki Kaisha Pneumatic reed drawing-in apparatus
DE3874424T2 (de) * 1987-06-18 1993-02-18 Teijin Seiki Co Ltd Kettfaedenziehvorrichtung.
JPS6440641A (en) * 1987-08-04 1989-02-10 Nishiki Kk Automatic warp yarn passing apparatus
EP0421924B1 (de) * 1989-10-03 1994-06-08 Sulzer RàœTi Ag Verfahren und Einrichtung zur Behebung von Kettfadenbrüchen in einer Webmaschine
JPH0737697B2 (ja) * 1989-11-24 1995-04-26 シーケーディ株式会社 ドローイング装置用の糸引き通しヘッド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147992A1 (de) 2008-07-25 2010-01-27 Stäubli AG Pfäffikon Einziehmaschine und Verfahren zum Einziehen von Kettfäden einer Webkette in Elemente eines Webgeschirrs

Also Published As

Publication number Publication date
JPH04505352A (ja) 1992-09-17
KR920701550A (ko) 1992-08-12
CA2045565A1 (en) 1991-06-23
PT96340A (pt) 1992-08-31
JP2913422B2 (ja) 1999-06-28
CH679598A5 (cs) 1992-03-13
CZ283051B6 (cs) 1997-12-17
CS647090A3 (en) 1992-04-15
WO1991010003A1 (de) 1991-07-11
US5249339A (en) 1993-10-05
EP0460129A1 (de) 1991-12-11
RU2028394C1 (ru) 1995-02-09
ES2073590T3 (es) 1995-08-16
AU6742390A (en) 1991-07-24
ATE124477T1 (de) 1995-07-15
DK0460129T3 (da) 1995-11-13
KR0140862B1 (ko) 1998-07-01
DE59009349D1 (de) 1995-08-03

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