EP3980593A1 - Dispositif pour uniformiser la ligne des points de liage lors du tissage de tissu éponge - Google Patents

Dispositif pour uniformiser la ligne des points de liage lors du tissage de tissu éponge

Info

Publication number
EP3980593A1
EP3980593A1 EP20731419.6A EP20731419A EP3980593A1 EP 3980593 A1 EP3980593 A1 EP 3980593A1 EP 20731419 A EP20731419 A EP 20731419A EP 3980593 A1 EP3980593 A1 EP 3980593A1
Authority
EP
European Patent Office
Prior art keywords
fabric
temple
displacement device
edge
weaving
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.)
Withdrawn
Application number
EP20731419.6A
Other languages
German (de)
English (en)
Inventor
Harald Arnold
Peter Czura
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP3980593A1 publication Critical patent/EP3980593A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/22—Temples
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/22—Terry looms
    • D03D39/223—Cloth control
    • 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

Definitions

  • the present invention relates to a device for equalizing the tie point line when weaving terry cloth according to the preamble of claim 1.
  • Shifting device periodically moved back and forth in order to produce loops - also called knobs or loops.
  • loops also called knobs or loops.
  • the edges of the fabric can be
  • Push button technology work by shifting the fabric by means of a correspondingly designed and long-known displacement device, this means that the distance from the last shot to the first shot of the new terry group in the temple area is less than in the rest of the fabric. This fact leads to the loop height in the effective area the temple is smaller than in the other fabric sections. This in turn has the consequence that the pile lamellas can fall off in the edge area, which leads to a standstill of the loom. This phenomenon can be explained by the fact that the spreader generates additional frictional resistance, which also increases as the immersion depth of the spreader increases. The fabric that is pushed through the temple with the blade stop can only partially overcome this design-related frictional resistance.
  • CH 497 578 A proposes a weaving machine with edge-side spreaders, which are mounted displaceably and mechanically coupled to a displacement device.
  • the temple as well as the fabric in and against the
  • Weaving direction moves in an oscillating manner to allow relative movements between
  • the object of the present invention is to provide a device according to the preamble of claim 1 in order to enable improved guidance of the tissue by means of spreaders arranged on the edge.
  • Mechanical displacement device preferably purely mechanical, coupled and moved together with the displacement device in and against the weaving direction.
  • the two pulling devices thus also perform a periodic movement together with the displacement device in order to pull the corresponding tissue sections through the spreader in time with the displacement device.
  • the periodic displacing movement of the displacement device is particularly preferably linear, while the pulling device executes an additional periodic rotational movement, and in this case during one
  • Half-period preferably pivoted from above or, which is particularly preferred, from below into the corresponding tissue section in order to implement the pulling movement of this tissue section.
  • the pulling device swings a little or completely out of the tissue again, with no relative movement caused by the pulling device resulting between the corresponding tissue section and the respective temple.
  • the pulling device is preferably arranged and set up in such a way that it exerts pressure on the tissue section to be pulled only from the top or, what is preferred, only from the underside, this pressure preferably being directed perpendicular to the tissue and where by this pressure the tissue section through the
  • each pulling device comprises a plunger body with a plunging edge that preferably runs parallel to the firing direction and is able to move from a passive position to an active position in the respective tissue section or to deflect it out of its running direction. The pressure exerted on the fabric section by the diving edge during its
  • each diving body preferably dips into the tissue both in the passive position and in the active position. So steer the immersion body from the tissue in any position, the
  • the deflection in the active position is greater than in the passive position.
  • each pulling device has a guide section which is attached to a stationary, i.e. is not moved back and forth by the sliding device, slide along.
  • the gate is preferably designed to be stationary or stationary, while the guide section of its trajectory follows the gate.
  • the trajectory of the backdrop and the amount of shifting movement that the shifting device and thus the pulling device coupled to it exerts preferably influence the immersion depth of the immersion edge, i.e. how deep the immersion edge immerses into the tissue. The greater the diving depth, the more tissue is pulled through the temple concerned.
  • the link and guide section are preferably arranged with respect to one another in such a way that the pulling device is then active when the
  • the immersion height is advantageously greater, the greater the displacement path of the displacement device.
  • Said guide section has according to a preferred
  • Embodiment at least one roller, which rolls when moving the displacement device in and against the weaving direction on the backdrop.
  • each of the two pulling devices arranged in the region of the fabric edges has a rocker with a rocker arm which extends essentially in the weaving direction and the respective
  • Guide section connects to the respective immersion body.
  • a rocker arm runs parallel to the firing direction and is arranged between the guide section and the plunge edge
  • Displacement device relatively more or less into and out of the tissue.
  • the direction of displacement of the displacement device determines whether the plunge edge is moved towards or away from the tissue section.
  • the rocker of each pulling device can be variably adjusted depending on the configuration, in particular of the said link and / or the plunge edge and / or the amplitude of the displacement path of the displacement device.
  • Each pulling device is preferably at a distance of between 1 cm and 10 cm, preferably less than 5 cm, particularly preferably less than 3 cm, to the associated spreader.
  • the said diving edge has
  • each temple is as
  • Roller body formed with needles arranged on its circumferential surface.
  • the respective roller body here has an axis which runs parallel to the firing direction. The roller body rotates when
  • the invention also relates to a loom, in particular one
  • Terry loom with a device for equalizing the tie point line when weaving terry cloth, as described above.
  • Fig. 1 is a side view of a schematically illustrated
  • FIG. 2 is a side view of the displacement device of FIG. 1 in FIG.
  • FIG. 3 shows a plan view of the displacement device of FIGS. 1 and 2 (in the active position).
  • a device 1 according to the invention for equalizing the binding point line BP when weaving in particular terry cloth is shown schematically
  • the loom which is not shown here, is particularly preferably designed and comprised in a known manner
  • the device 1 has a tissue table 5, which extends over the entire width of the tissue, with receptacles 5a which are trough-shaped in cross section.
  • the fabric table is arranged on a support profile 6, wherein in
  • weft direction S several such support profiles 6 can be provided.
  • a spreader 7 (only its suspension 9 is shown schematically), which in the present case is designed as a roller body and has needles on its circumferential surface.
  • the roller-shaped temple 7 has a temple axis 8 which runs parallel to the weft direction S (see also FIG. 3).
  • Such a temple 7 is provided on the edge of the fabric which run along the weaving direction W. If a temple 7 is mentioned in the singular, the other temple 7 on the other fabric edge is also included; The same also applies to the drawing device 30 to be described later and its components.
  • the temple 7 extend in the weft direction S over approx. 20 cm each, but can also be selected to be shorter or longer.
  • Blowing nozzles 4 are used in an air-jet loom; however, the loom can also be designed as a rapier loom, for example.
  • the device 1 has a displacement device 10 which is used to displace the fabric table 5 in and against the weaving direction W
  • loops also referred to as knobs or loops
  • loops are produced along the width of the fabric immediately in front of the spreaders 7 in the area of the tie point line BP, which are tied off by a subsequently inserted weft thread.
  • the displacement device 10 comprises according to the illustrated
  • Embodiment a extending in the weaving direction W push lever 12, which is coupled at its one free end facing away from the spreaders 7 with a motor-driven pendulum roller 13 - possibly with the interposition of a gear - which has a parallel to the
  • a schematically illustrated intermediate piece 15 is attached to the pendulum roller 13, which is part of the displacement device 10, and is connected to the said free end of the push lever 12 via a pivot axis 16.
  • a roller 17 is arranged, the roller axis 18 of which runs parallel to the weft direction S.
  • the roller 17 is guided on the top and bottom in stationary linear profiles 21, which in
  • Intermediate piece 15 also performs a small vertical movement.
  • the fabric table 5 and the temple 7 are mechanically connected to the push lever 12 in such a way that the push lever 12 entrains the fabric table 5 and the temple 7 with each of its movements.
  • the said pendulum roller 13 oscillates periodically about its roller axis 14 and pushes the push lever 12 and thus also the fabric table 5 and the temple 7 either in or against the weaving direction W.
  • the device 1 shown in the figures has two pulling devices 30 separated from one another in the weft direction S, one in each case
  • each pulling device 30 is arranged immediately after a temple 7.
  • each pulling device 30 has essentially the same extension in the weft direction S as the respectively assigned spreader 7.
  • each pulling device 30 is designed to be movable relative to the displacement device 10 in order to move that tissue section GA that is shown in FIG.
  • Each of the pulling devices 30 thus ensures a relative movement of a tissue section GA relative to the
  • the term “fabric section GA guided through a temple 7” is understood here to mean the extent of a part of the fabric G in the weft direction S and in the weaving direction W, the extent of such a fabric section GA in the weft direction S essentially corresponding to the width of the temple 7 and in the weaving direction W the distance from the temple 7 upstream in the weaving direction W fabric table 5 to the pulling device 30 or that part of the Pulling device 30, which has a pulling effect on the fabric G (see the
  • the pulling device 30 can be implemented in different ways. Particularly preferably, each of the two pulling devices 30 - as shown here - is mechanically coupled to the displacement device 10 and is periodically moved in and against the weaving direction W together with the displacement device 10. According to an alternative, the pulling devices can also act independently of the displacement device 10, which, however, would mean a not inconsiderable additional design effort.
  • each pulling device 30 comprises a rocker 32.
  • Each rocker 32 has a rocker arm 33 which in the present case - as can be seen in particular from FIG. 3 - is L-shaped in plan view.
  • the rocker arm 33 has a longitudinal extension in the weaving direction W having.
  • the rocker arm 33 is by means of two bearing journals 35 in
  • Pivot bearings 36 mounted so that the rocker arm 33 periodically and around a pivot axis 34 extending in the firing direction S
  • Displacement device 10 moved in and against the weaving direction W. Accordingly, the periodic pendulum or pivoting movement of the rocker arm 33 and its essentially superimposed by the
  • Displacement device 10 caused linear movement.
  • the forced periodic pivoting movement of the rocker arm 33 is realized in the present case by a guide section 38 which is provided at the end of the rocker arm 33 opposite the respective spreader 7 and which is moved along a stationary link 24 during the periodic movement of the displacement device 10.
  • the gate 24 is here preferably, as indicated in FIG. 3, connected to the likewise stationary support structure 20 or otherwise on
  • the guide section 38 also includes a roller 39
  • Roller axle 39a which rolls on the link 24.
  • Displacement device 10 essentially determine the
  • the end of the rocker arm 33 adjacent to the respective spreader 7 is designed as an immersion body 40, which extends in the firing direction S.
  • the plunge edge 41 is designed and set up to be periodically pivoted or pressed into the underside of the fabric G and pivoted out or moved out again a little.
  • the plunge edge 41 is periodically transferred from a passive position to an active position and back in time with the displacement device 10 and the oscillating rocker arm 33.
  • FIG. 1 the immersion body 40 and thus also the immersion edge 41 are shown in the passive position and in FIG. 2 in the active position. It can be seen that the dipping edge 41 presses into the tissue G from below, both in the passive position and in the active position, but with different depths of immersion.
  • the displacement device 10 is in its position displaced the furthest against the weaving direction W and, when moving into this position, has produced a row of loops in the warp threads (not shown).
  • the roller 39 rests on the outer end of the rocker arm 33 on a steep section of the trajectory 25 of the link 24. This requires, caused by the rocker arm 33 given away about the pivot axis 34, that the plunge edge 41 is in its
  • Passive position is located and from below into the neighboring
  • the respective plunge edge 41 Due to the periodic back and forth movement caused by the displacement device 10 and the superimposed, synchronized pivoting movement of the rocker arm 33, the respective plunge edge 41 also acts periodically on the respective tissue section GA and deflects it upwards during a half period. In the second half, in which the
  • Displacement device 10 in particular the fabric table 5 and the
  • the rocker arm 33 moves against the weaving direction W, the plunge edge 41 pivots downward, the pressure on the corresponding
  • the fabric section GA subsides and the plunge edge 41 is no longer able to overcome the frictional resistance that the fabric section GA experiences from the temple 7.
  • the pulling device 30 results in a more uniform tie point line in the fabric G, since the pulling device 30 reduces the frictional resistance that occurs in the prior art

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un dispositif (1) pour uniformiser la ligne des points de liage (BP) lors du tissage de tissu éponge, comprenant une table de tissage (5) et un dispositif de déplacement (10) pour déplacer périodiquement la table de tissage (5) dans le sens d'avancement du tissu (W) et dans le sens opposé pour produire des boucles, des templets (7) pouvant être déplacés conjointement avec le dispositif de déplacement (10) étant disposés dans des régions de bord latérales du tissu (G) dans le sens d'avancement du tissu derrière la ligne des points de liage (BP). Le dispositif selon l'invention est caractérisé en ce que dans le sens d'avancement du tissu derrière chaque templet (7) est à chaque fois disposé un dispositif de traction (30) déplaçable par rapport au dispositif de déplacement (10) pour tirer la portion de tissu (GA) guidée par le templet respectif (7) à travers le templet (7) lors du déplacement du dispositif de déplacement (10) dans le sens d'avancement du tissu (W). L'invention concerne également un métier à tisser, en particulier un métier à tisser les tissus éponges, comprenant un tel dispositif (1).
EP20731419.6A 2019-06-07 2020-06-03 Dispositif pour uniformiser la ligne des points de liage lors du tissage de tissu éponge Withdrawn EP3980593A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019208377.3A DE102019208377B3 (de) 2019-06-07 2019-06-07 Vorrichtung zum Vergleichmäßigen der Bindepunktlinie beim Weben von Frottiergewebe
PCT/EP2020/065265 WO2020245141A1 (fr) 2019-06-07 2020-06-03 Dispositif pour uniformiser la ligne des points de liage lors du tissage de tissu éponge

Publications (1)

Publication Number Publication Date
EP3980593A1 true EP3980593A1 (fr) 2022-04-13

Family

ID=70468437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20731419.6A Withdrawn EP3980593A1 (fr) 2019-06-07 2020-06-03 Dispositif pour uniformiser la ligne des points de liage lors du tissage de tissu éponge

Country Status (5)

Country Link
EP (1) EP3980593A1 (fr)
JP (1) JP2022535896A (fr)
CN (1) CN113906174A (fr)
DE (1) DE102019208377B3 (fr)
WO (1) WO2020245141A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH497578A (de) 1968-10-08 1970-10-15 Sulzer Ag Webmaschine mit Gewebe-Breithalter
CH543620A (de) * 1971-10-11 1973-10-31 Sulzer Ag Verfahren und Vorrichtung zum Weben von Frottierstoffen
DE19530222C1 (de) * 1995-08-17 1996-06-05 Dornier Gmbh Lindauer Steuersystem für die Polkette zur Herstellung von Frottiergewebe auf Webmaschinen
DE20117326U1 (de) * 2001-10-23 2002-04-11 Dornier Gmbh Lindauer Vorrichtung zum Breitstrecken eines Gewebes und zur Gewebeumlenkung auf Webmaschinen
EP1899515B1 (fr) * 2005-06-10 2016-01-20 Picanol Machine a tisser les tissus eponge
DE102005028124A1 (de) * 2005-06-10 2006-12-14 Picanol N.V. Frottierwebmaschine
JP5083223B2 (ja) * 2009-01-09 2012-11-28 株式会社豊田自動織機 パイル織機におけるパイル形成装置
CN103437044B (zh) * 2013-08-02 2015-04-22 经纬纺织机械股份有限公司 一种具备机械自锁功能的毛巾织机起毛圈机构及织造方法
CN105040246B (zh) * 2015-08-31 2016-09-28 山东日发纺织机械有限公司 动程可调式移动边撑装置

Also Published As

Publication number Publication date
CN113906174A (zh) 2022-01-07
DE102019208377B3 (de) 2020-04-23
JP2022535896A (ja) 2022-08-10
WO2020245141A1 (fr) 2020-12-10

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