EP1255885B1 - Verfahren zum auslenken einer kettfadenschar während des webens und webmaschine - Google Patents

Verfahren zum auslenken einer kettfadenschar während des webens und webmaschine Download PDF

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Publication number
EP1255885B1
EP1255885B1 EP01915225A EP01915225A EP1255885B1 EP 1255885 B1 EP1255885 B1 EP 1255885B1 EP 01915225 A EP01915225 A EP 01915225A EP 01915225 A EP01915225 A EP 01915225A EP 1255885 B1 EP1255885 B1 EP 1255885B1
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EP
European Patent Office
Prior art keywords
warp
warp thread
weaving
sheet
weaving machine
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
EP01915225A
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German (de)
English (en)
French (fr)
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EP1255885A1 (de
Inventor
Piet Verdiere
Geert Ostyn
Bart Beernaert
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.)
Picanol NV
Original Assignee
Picanol NV
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Filing date
Publication date
Application filed by Picanol NV filed Critical Picanol NV
Publication of EP1255885A1 publication Critical patent/EP1255885A1/de
Application granted granted Critical
Publication of EP1255885B1 publication Critical patent/EP1255885B1/de
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D03C13/02—Shedding mechanisms not otherwise provided for with independent drive motors
    • D03C13/025—Shedding mechanisms not otherwise provided for with independent drive motors with independent frame drives

Definitions

  • the invention relates to a method for deflecting a warp thread family while weaving with a loom and one Loom.
  • the invention has for its object a method and to improve a weaving machine of the type mentioned at the beginning, that achieved an improvement in the quality of the tissue produced can be.
  • This task is solved in that the warp thread family between a stop line for a fabric to be woven and Technical training resources is deflected.
  • the deflection of the warp thread sheet in the section between the The stop line and the technical training means that the Warp thread coulter can be brought into a position by deviates from the position brought about by specialist training resources becomes. By changing the position it is possible to influence the tissue quality.
  • the deflection the warp thread assembly at changeable times and / or for changeable time spans and / or with changeable paths occurs during a weaving cycle.
  • the course of movement can be freely chosen and specified. For example he regardless of the movement of the drawer and / or the Specialist training resources and depending on the weaving speed of the Weaving machine selectable.
  • the warp threads while a weft thread is striking the fabric be deflected into a predetermined position. It is assume that the weft thread and thus the tissue formation run evenly, so that a better tissue quality is achieved when the position of a Warp thread sheet near the fabric during the beating a weft is predetermined.
  • This predetermined position can be chosen so that a weft thread can easily be attached the tissue can be attached so that a full tissue, a heavy or high density fabric such as for example denim.
  • the improved Striking the weft thread also has the advantage that so-called neck strips can be avoided. such Neck strips can form in a tissue if the Weft threads struck the fabric at an irregular height especially at a point where the loom starts again after a standstill.
  • the warp threads for a predetermined period of time during the setting be held in a deflected position.
  • the additionally tensioned warp thread coulter in one given position during weft threading which favors the easy attachment to the tissue.
  • the invention is therefore particularly suitable for use in weaving of the aforementioned substances.
  • the warp threads during of striking essentially to an intersection level be deflected in the warp thread coulters when changing of web subjects.
  • the voltage increase achieved with this and the position of the warp thread coulter bring advantages for easy weft thread insertion.
  • the position is near the crossing level beneficial to avoid warp threads when crossing the warp thread coulters get caught.
  • the warp thread sheet is deflected into a predetermined position is while auxiliary elements through the warp thread sheet be introduced into a shed. If the warp thread group is in a predetermined position, so the auxiliary elements to be introduced, for example relay nozzles for air weaving machines or hook-shaped guide elements for Rapier weaving machines, so that they are as possible without damage the warp threads are moved through the warp thread sheet can be.
  • the deflection of the warp thread set on the movement of the associated training resources is matched that the warp threads in this warp thread group during an opening or Closing a shed kept under tension.
  • the task is solved in that the means for deflecting between a stop line Tissue and technical training means are arranged. To this Not only can the tension of the warp thread coulter be wise adjust, but also the position of the section of the Warp thread coulter that connects to the stop line.
  • the means are provided with a controllable drive for deflection. This makes it possible to track the movement of the means Deflect any shape and follow the course of movement the sley and / or the course of movement of the specialist training means to adapt and to choose these out of phase.
  • the means for deflecting have a frame which in one Guide block is guided, in which also frames of heald frames are led.
  • This is a particularly beneficial one Embodiment, since such guide blocks already in a weaving machine are usually present. It is in the Within the scope of the invention, this advantage of the arrangement of means to use for deflection even when these means between the technical training resources or even in the back subject to be ordered. In this case it is only possible to to tension the relevant warp thread family, however, the advantage of the favorable arrangement of the funds according to the invention received to deflect. It is easily possible already existing weaving machines with the means for deflecting equip by, for example, these funds instead of one Heald shaft are used or by the existing ones Guide blocks around a guide for the framework of funds to be extended to deflect.
  • the weaving machine shown schematically in Fig. 1 has a Warp beam 5, of which warp threads via a match beam 6 to a stop line 7 for weft threads and then as fabric 8 run over a breast tree 9 to a goods tree 10.
  • a Warp beam 5 of which warp threads via a match beam 6 to a stop line 7 for weft threads and then as fabric 8 run over a breast tree 9 to a goods tree 10.
  • the warp threads across the width of the loom in the form of Warp thread assemblies 1, 2, 3 and 4 pulled apart so that a shed 45 is formed.
  • Be in the shed 45 Weft threads entered, which are then opened by means of a a sley 11 arranged reed 12 on the stop line 7 are struck on the fabric 8.
  • the shed 45 is in the embodiment of four warp sheets 1, 2, 3, 4 formed, which in the embodiment Specialist means in the form of heald frames 13, 14, 15, 16 are assigned.
  • Each of these heald frames, 13, 14, 15, 16 consists of a frame, one between the cross legs A plurality of strands 17 is arranged, each having a thread eye 27, through which a warp thread is guided.
  • the Number of warp threads 1 to 4 corresponds to the number of Heald frames 13 to 16.
  • the weaving machine has a means 18 for deflecting each of the lower warp thread sheet, in the embodiment the warp thread sheet 2.
  • the means 18 is between the Stop line 7 of the fabric 8 and shedding means arranged, preferably in a position between reed 12 and Heald frames 13 to 16.
  • This means 18 is in the illustrated Embodiment a rod that extends across The direction of the warp threads extends between the two Side legs 20, 21 of a frame 19 is arranged (Fig. 2).
  • the side legs 20, 21 are by means of an upper Cross leg 22 and a lower cross leg 23 connected, so that the frame 19 in its shape is the frame of the heald frames 13 to 16 corresponds.
  • the rod of the deflection element 18 is by means of connecting elements 24 with the lower cross leg 23 of the frame 19 connected.
  • the frame 19 of the agent 18 for deflecting the lower warp thread sheet 2 is with his side legs 20, 21 guided in guides 25 which in Fig. 3 are shown.
  • These guides 25 that go to both Sides of the frame 19 are in a guide block 26 included, the further guides 28 to 33 for heald frames 13 to 16.
  • the guide 25 is in the reed 12 facing Ends of the guide blocks 26.
  • the means 18 for deflection the respective lower warp thread sheet, in the illustration 1 of the warp thread family 2, is in the direction of the double arrow C movable across a plane that the matchstick 6 connects to the breast tree 9.
  • the heald frames are 13 to 16 Can be moved back and forth in the same direction.
  • the heald frames 13 to 16 and the means 18 for deflecting the lower one Warp thread coulters are provided with a drive 34, which in the The illustrated embodiment of a drive motor 36 exists on the drive shaft 44, a cam system 35 for the means 18 for deflecting the lower warp thread sheet and Cam systems 38 to 43 are arranged, the heald frames assigned are.
  • the drive motor 36 is connected to a controller 37 and can be independent of the movement of the drawer 11 move.
  • cam systems 35 and 38 to 43 are like this designed and in such an angular position on the shaft 44 of the drive motor 36 that both the means 18th to deflect the lower warp thread coulter as well as the Heald frames 13 to 16 each have a preselected course of movement To run.
  • the mode of operation in the loom according to the invention results 1 and 4 to 7.
  • the crossbar of the means 18 for deflecting the lower warp thread family 2 still at a distance from this warp sheet 2
  • the with the warp thread coulters 1, 3 and 4 the shed 45 for insertion of a weft thread.
  • the lower Takes position while the other three heald frames in in the upper position.
  • the shed is used during opening and closing a weft thread, so that before a weft thread is struck, the formation of the subsequent shed is already started, i.e. the shed 45 is already partially closed again. This means, as shown in FIGS.
  • the means 18 for laying out the lower Warp thread coulter 2 also raised so that it with the Warp thread sheet 2 comes into contact after the heald frame 14 has already been moved up a bit. After that it will Shed further closed, the means 18 for deflecting the warp thread coulter 2 is raised faster than the heald frame 14, so that the warp thread tension in the warp thread family 2 is not significantly changed while the heald frame 14 moved up.
  • the section 46 of the warp thread sheet which is on the stop line 7 of the tissue begins and extends up to the mean 18 Deflecting the warp thread sheet extends into its position changed.
  • This section 46 is thus in a predetermined position brought in which a weft by means of of the reed 12 struck on the stop line 7 of the fabric 8 will (Fig. 5).
  • This predetermined position is preferred near intersection level 47, i.e. the level in which the warp thread sheet 2 and the warp thread sheet 3 intersect.
  • This crossing level 47 is preferably slightly below that Plane of a bisector of the angle of a completely open shed starting from the stop line 7 formed becomes.
  • This position of the means 18 for deflecting something below the intersection level 47 is advantageous because the warp thread family 2 optimal when striking a weft thread is tensioned and on the other hand the following warp thread family 3 when forming the next shed only from that Means 18 for deflection is supported after the warp thread coulters 2 and 3 have already crossed.
  • the heald frame 15 continues to move downward while the heald frame 14 continues to move upward.
  • the mean 18th to deflect it moves down a little more slowly at first than the heald frame 15 so that the tension in the warp thread sheet 3 rises quickly, so that the warp sheets 2 and 3 can be separated quickly and a clean shed 45 is formed will (Fig. 6).
  • the means 18 then moves to deflect down faster than the heald frame 15, so that the means 18 out of engagement with the warp thread sheet 3 comes when the heald frame 15 is in its lower position (Fig. 7). This has the advantage that the means 18 to deflect the warp thread tension in the warp thread sheet 3 is not increased if it is in its lowest position Has.
  • the means 18 to deflect and the heald frames 13 to 16 by means of linear motors 49 to 53 driven, each with a predeterminable Movement course can be controlled by a controller 37.
  • This drive it is possible to track the movements the means 18 for deflecting and the course of movements the heald frames 13 to 16 any and above all also set independently, as well as independently from the movement of the sley 11.
  • the linear motors 49 to 53 are advantageously on a common bracket 54 arranged.
  • the means 18 for deflection By means of an independent drive for the means 18 for deflection, for example the linear motor 49 according to FIG. 8, it is possible to the course of movement of the means 18 for deflection adjust the weaving speed.
  • the control unit 37 and the controllable linear motor 49 By means of the control unit 37 and the controllable linear motor 49, the means 18 during beating a weft into a predetermined one Position brought depending on the weaving speed is, for example, also from the one to be processed Weft is dependent. For example then, for each weft entry with a different weaving speed is woven for the duration of the attack low weaving speed a position near the crossing level 47 can be selected while at high weaving speed a position is chosen farther from the intersection level 47 is removed. It is also possible in a Start-up phase when switching back on a changed position for section 46 while weft threading pretend.
  • the means 18 for Deflection of a warp thread sheet during normal weaving not activated with a given weaving speed while it is slow weaving or a Start up after switching the weaving machine on again is active to achieve normal weaving speed and section 46 of the lower warp thread sheet during the setting in a given position. In this way it is possible to avoid neck streaks in the tissue.
  • the means 18 for deflection during a weft search in which after a Incorrect weft entry reopened the previous shed must be to the wrongly entered weft remove.
  • the means 18 for deflection can then be determined here Work together with a warp thread group, around the previous shed at slow speed to be able to be opened without problems, whereby warp threads get caught is avoided.
  • the means 18 brings Deflect the lower warp thread coulter towards the stop line 7 running section 46 of the warp thread sheet to a predetermined Time and for a predetermined period of time in one predetermined position.
  • the predetermined time is there the time at which one or more auxiliary elements 48, which move together with the sley 11 through the warp thread sheet 2 are inserted into the shed 45. there this warp yarn sheet 2 is simultaneously by means of the agent 18 excited to deflect.
  • auxiliary elements 48 are, for example, relay nozzles in an air jet loom or relay nozzles, a lip of a profile reed or a gunman.
  • Guide hook for a gripper belt In principle is specifying a defined position for section 46 advantageous for the introduction of any auxiliary element.
  • Means 55 for deflection provided, for example in the Guide 28 of a guide block 26 arranged according to FIG. 3 is.
  • the means 18 and 55 can optionally. for one predetermined time and / or for a predetermined duration, for example for the duration of the beating of a weft thread, interact with the lower warp thread sheet 2.
  • the mean 55 is, for example, part of a frame shown in FIG. 10 56, which consists of two side legs 20, 21, an upper cross leg 22 and a cross strut is formed with her The upper edge forms the means 55 for deflecting and the on two side legs 20, 21 is held.
  • both means 18 and 55 simultaneously with the lower one Allow the warp thread to work together, for example around the Increase the tension of the lower warp thread coulter even more. If both means 18 and 55 simultaneously with the lower one Warp thread coulter interact, so the position of the section 46 set by the means 18 while the other Means 55 only serves the warp tension in this To increase the warp thread family.
  • the activity of the agent is 18 or 55 to deflect the lower warp thread coulter not only on the Time to strike or insert a weft an auxiliary element 48 through the warp thread sheet in one shed restricted. It can also be at other times be advantageous within a weaving cycle, the means for Deflect to operate and the lower warp thread coulter in one bring predetermined position. For example, by means of of element 18 or 55 to deflect section 46 of the lower warp thread sheet in one for the insertion of the weft thread position that is particularly suitable in the shed.
  • the tension in the warp thread coulter can be increased, in particular when a weft thread is struck, but it is not possible to bring the lower warp thread coulter into a position independent of the shedding means in the area of the stop line. It is also possible to arrange means for deflecting a warp thread family on the side of the guide block 26 facing the match tree 6. In this case too, only the tension of the warp thread coulter can be checked, but the advantage is used that the guides 25, 28 to 33 of a guide block 26 can also be used for such means for deflecting, provided the means for deflecting are designed in accordance with heald frames.
  • the invention is preferably suitable for looms with the above 3/1 weave, 1/1 weave, 2/1 weave, 4/1 weave or generally weave with an n / 1 weave, i.e. at which the lower warp thread coulter with each stop or Weft entry is moved up.
  • several such means 57 are provided for deflection.
  • the means 57 for deflecting is actuated by means of a drive 58, which is connected to a controller 37.
  • a drive can be linear motors, air cylinders or others Drive elements are provided.
  • the mean is 57 between the stop line 7 of the fabric 8 and the technical training means 13 to 16 arranged. It is particularly advantageous it when it is in a position between the stop line 7 of the Fabric 8 and the swung-back reed 12 to the top Warp thread array attacks.
  • the means 57 must of course when striking a weft from the trajectory of the Webblattes 12 are brought out.
  • the exemplary embodiments are in particular for weaving an n / 1 bond.
  • the invention can be modified Way also for weaving with a 1 / n weave, in which case the upper warp thread group is expediently in each case by means of the function of the means 18 and / or 55 corresponding Means is deflected from above this warp thread family be delivered. In this case, funds can also be used with the function of means 57 of the lower warp thread family be delivered.
  • inventive method and the inventive Weaving machines can produce high quality fabrics.
  • the means for deflecting the warp thread sheet or Warp thread coulters can be easily installed in any machine. Existing machines can also be used without major ones Problems are retrofitted.
  • the invention is self-evident not on the illustrated and described embodiments limited. Within the scope of the claims course changes to the embodiments be made.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
EP01915225A 2000-02-14 2001-02-12 Verfahren zum auslenken einer kettfadenschar während des webens und webmaschine Expired - Lifetime EP1255885B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2000/0120A BE1013285A3 (nl) 2000-02-14 2000-02-14 Werkwijze en inrichting voor het steunen van een schaar kettingdraden bij een weefmachine.
BE200000120 2000-02-14
PCT/EP2001/001516 WO2001059192A1 (de) 2000-02-14 2001-02-12 Verfahren zum auslenken einer kettfadenschar während des webens und webmaschine

Publications (2)

Publication Number Publication Date
EP1255885A1 EP1255885A1 (de) 2002-11-13
EP1255885B1 true EP1255885B1 (de) 2004-12-01

Family

ID=3896412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915225A Expired - Lifetime EP1255885B1 (de) 2000-02-14 2001-02-12 Verfahren zum auslenken einer kettfadenschar während des webens und webmaschine

Country Status (9)

Country Link
US (1) US6953067B2 (nl)
EP (1) EP1255885B1 (nl)
CN (1) CN1213180C (nl)
AT (1) ATE283939T1 (nl)
AU (1) AU2001242382A1 (nl)
BE (1) BE1013285A3 (nl)
DE (1) DE50104683D1 (nl)
ES (1) ES2232605T3 (nl)
WO (1) WO2001059192A1 (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040230328A1 (en) * 2003-03-21 2004-11-18 Steve Armstrong Remote data visualization within an asset data system for a process plant
DE10358535A1 (de) 2003-12-13 2005-07-14 Henkel Kgaa Hybridenzyme mit kationischer Bindedomäne
WO2008037106A1 (de) * 2006-09-28 2008-04-03 Textilma Ag Fachbildevorrichtung für eine webmaschine, insbesondere für eine bandwebmaschine
US8880410B2 (en) * 2008-07-11 2014-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
US8256364B2 (en) 2009-11-03 2012-09-04 Columbia Insurance Company Methods and devices for controlling the tension of yarn in a tufting machine
EP2633112B1 (en) 2010-10-28 2018-02-21 Shaw Industries Group, Inc. Method and device for controlling a tufting machine for forming tufted carpet

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1749123A (en) * 1928-08-28 1930-03-04 Draper Corp Shed-diverting means for looms
CS149784B1 (nl) * 1970-04-28 1973-08-23
US3943976A (en) * 1971-10-06 1976-03-16 Maquinaria Textil Del Norte De Espana S.A.-Matesa Continuous insertion weaving machine
CH543621A (de) * 1972-04-14 1973-10-31 Rueti Ag Maschf Einrichtung zum Bilden von Gewebebindungen
US4122871A (en) * 1976-07-07 1978-10-31 Mcginley Thomas F Method of weaving and apparatus therefor
US4253498A (en) * 1979-03-20 1981-03-03 Vinicio Luchi Travelling wave shedding looms relative to the shuttle loading system
JPS5678888A (en) 1979-12-03 1981-06-29 Mitsubishi Precision Co Ltd Patternngenerator using lighttpen
US4425946A (en) * 1980-10-16 1984-01-17 Mcginley Mills, Inc. Weaving method and apparatus
EP0350447B1 (de) * 1988-07-08 1992-03-25 GebràœDer Sulzer Aktiengesellschaft Verfahren zur Kettspannungssteuerung und Webmaschine mit Kettspannungsorgane
EP0456599B1 (de) * 1990-05-11 1998-05-27 Sulzer RàœTi Ag Reihenfachwebmaschine

Also Published As

Publication number Publication date
BE1013285A3 (nl) 2001-11-06
AU2001242382A1 (en) 2001-08-20
US6953067B2 (en) 2005-10-11
ES2232605T3 (es) 2005-06-01
US20030019534A1 (en) 2003-01-30
ATE283939T1 (de) 2004-12-15
CN1213180C (zh) 2005-08-03
EP1255885A1 (de) 2002-11-13
WO2001059192A1 (de) 2001-08-16
DE50104683D1 (de) 2005-01-05
CN1401026A (zh) 2003-03-05

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