EP0937798A1 - Dispositif de coupe pour métiers à tisser - Google Patents

Dispositif de coupe pour métiers à tisser Download PDF

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Publication number
EP0937798A1
EP0937798A1 EP99101919A EP99101919A EP0937798A1 EP 0937798 A1 EP0937798 A1 EP 0937798A1 EP 99101919 A EP99101919 A EP 99101919A EP 99101919 A EP99101919 A EP 99101919A EP 0937798 A1 EP0937798 A1 EP 0937798A1
Authority
EP
European Patent Office
Prior art keywords
cutting device
fabric
cutting
blade
edge
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.)
Granted
Application number
EP99101919A
Other languages
German (de)
English (en)
Other versions
EP0937798B1 (fr
Inventor
Josef Hehle
Hubertus Ludwig
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 EP0937798A1 publication Critical patent/EP0937798A1/fr
Application granted granted Critical
Publication of EP0937798B1 publication Critical patent/EP0937798B1/fr
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
    • D03J1/06—Auxiliary apparatus combined with or associated with looms for treating fabric
    • D03J1/08—Auxiliary apparatus combined with or associated with looms for treating fabric for slitting fabric
    • 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
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the invention relates to a cutting device in weaving machines, in particular for Cutting free the edge of a fabric from a catch strip, according to the characteristics of the Preamble of claim 1.
  • an edge cutting device for a weaving machine for separating the edge strip (catch strip) from the base fabric before it is wound up, consisting of a driven cutting tool designed as scissors in the cutting alley at the edge of the fabric and in a vertical position to the fabric web Level is arranged.
  • the scissors are held reliably in the cutting alley and do not run into the fabric web, it is provided that the scissors are suspended at one end for a pendulum bearing for lateral movement in the weft direction and at their other end, which dips into the cutting alley, in the area of the cutting edges Equipped with parallel guide surfaces for self-guidance in the cutting lane, which are in contact with the fabric edge on the one hand and with the edge of the safety edge on the other hand.
  • the cutting device although it is accommodated in a roller bearing in an oscillating manner, cannot track the fabric edge. In the case of fabric jumps, for example, weft thread ends of different lengths will be present on the fabric edge because the cutting device cannot track the fabric edge directly.
  • DE 20 42 207 B2 discloses a device for trimming the marginal edges of fabric webs, with a shaving head which is fixed relative to the longitudinal movement of the fabric web. So that the shaving head can react quickly to a changing edge condition of the fabric web, the shaving head has a drivable transverse shifting device, by means of which the shaving head can be advanced transversely to the fabric edge depending on a device scanning the fabric edge. Such a shaving head control is expensive.
  • a cutting device in weaving machines which has a carrying device which is mounted displaceably in the direction of the weft threads and is connected to a guide device.
  • the guide device rests on the one hand at least on one side against the tissue edge and on the other hand it is mounted such that it can be moved back and forth transversely to the tissue plane.
  • the aforementioned DE-PS does not disclose how and what ensures that the guiding device is actually tracked on the fabric edge, that is to say inevitably the fabric edge.
  • a cutting device in weaving machines is also known from FR-PS 2 271 320.
  • the cutting blade carrier of this cutting device has guide elements in the area of the cutting blades, which are in contact after the intersection of the cutting blades on the one hand with the fabric edge and on the other hand with the safety edge. This cutting device also does not ensure that the cutting edge corresponds to the course of the fabric edge, because the guide element on the fabric edge does not necessarily track the fabric edge.
  • FR-PS 2 426 106 a cutting device in weaving machines is known which has no guide elements in the area of the cutting blades and consequently the Fabric edge can not be tracked.
  • the cutting process is preceded by an alignment and guiding of the cutting device on a cutting area lying between the fabric edge and the catching strip in order to cut free the tissue edge from a catch strip which is formed parallel to a fabric strip to be produced.
  • Alignment and guiding is carried out by means of a track wheel arranged on the cutting device, which leads the cutting process and which predetermines the cutting line of the cutting means lying between the fabric edge and the catch strip.
  • the cutting device can be pivoted in the cutting plane about a fulcrum spaced from the center axis of the blade bolt.
  • the trace wheel ensures that the cutting device is guided almost parallel to the fabric edge.
  • the length of the ends of the weft threads projecting beyond the fabric edge can, however, be of different lengths in connection with a fabric insertion.
  • fabrics which, owing to the species of the fabric material, have a relatively large jump-in behavior it is not possible to track the cutting device in the direction of the fabric edge due to the design of the cutting device.
  • weft ends that protrude beyond the fabric edge are therefore relatively long and can also be of different lengths.
  • the protrusion behavior of the fabric and thus the position of the fabric edge also change. This means that one and the same fabric edge has weft ends of different lengths.
  • the weft thread ends of different lengths lead to a product edge that does not meet the quality requirements in the subsequent assembly process by folding over the fabric edge and sewing it to the fabric.
  • the cutting device is spring-loaded in addition to its limited pivotability, approximately in the plane in which the fabric web is supported by a fabric spreader. The purpose of this is to ensure that the trace wheel engaging in the weft threads has a certain amount of guiding play both in the direction of the fabric edge and in the direction of the edge of the catch strip.
  • neither the embodiment of the cutting device according to DE 24 35 397 A1 nor the improved embodiment overcomes the aforementioned disadvantage that the cut edge does not correspond to the course of the fabric edge.
  • the object of the invention is independent of the jump-in behavior of those to be produced Realize a cut edge that corresponds to the course of the fabric edge.
  • the object is achieved by the features of patent claim 1.
  • the invention consists in that on a fixed part one per se known cutting device for cutting free the tissue edge of a to be produced Fabric web a guide element is arranged with the cut-away fabric edge resiliently in contact and thus also the cutting device of the fabric edge is tracked in the case of tissue jumps.
  • a fabric web 8 produced on a weaving machine is closed in succession via a fabric spreader 16, consisting of the combination of a fabric support 16a with a needle spreader 16b, via a first shaft 20 and subsequently via a second shaft 21 in the direction of arrow 22 a goods tree, not shown, wound up on this.
  • a firm fabric edge 8a is produced at the edges of the fabric web 8 and a so-called catch bar 15 is produced at least on the output side of the shed, in which the end of each weft thread 15a is firmly tied, see also FIG. 2.
  • the fabric web 8 and the catching strip 15 are connected to one another by the weft threads 15a until a cutting device 1 carried by a machine-fixed support 17 passes.
  • the tissue edge 8a of the tissue 8 is cut free from the catch strip 15 to a predetermined length in a first working step.
  • a guide element 9, which is connected to the cutting device 1 which is spring-loaded in the direction of the fabric edge 8a and is adjustable relative to the fabric web 8 comes into contact with the tissue edge 8a, as a result of which the cutting means 3, 5 of the cutting device 1 and the cutting device 1 itself Fabric edge 8a is trackable. It is irrelevant for tracking whether fabrics with a low or high weft density are produced.
  • the cutting device is designed for tracking, as described below.
  • the cutting device 1 is arranged on a machine-fixed support 17, best seen in FIG. 5, about the central axis 7a of the axis of rotation 7 connected to the support 17, between a first and a second end limitation 11, 12, see also FIG. 2.
  • the cutting device 1 consists of the swivel body 18 which is rotatably mounted about the aforementioned central axis 7a of the axis of rotation 7.
  • the gravity body 18 carries the drive 4 at a distance from the axis of rotation 7, which is an electromotive drive in the exemplary embodiment.
  • the fixed cutting blade 3 and the cutting blade carrier 2 are also connected to the swivel body 18 by means of the screws 19.
  • the cutting blade carrier 2 which lies parallel to the movable cutting blade 5, carries the blade bolt 6, about the center axis 6a of which the cutting blade 5 is movable. Spaced from the center axis 6a of the blade bolt 6, the cutting blade 5 is connected to a driver 4c eccentrically to the center axis 4b of the shaft 4a of the drive 4.
  • a guide element 9 which is in contact with the edge 8a of the fabric 8 is arranged on a fixed part of the cutting device 1, see also FIG. 2.
  • the guide part 9 consists of an end approximately U-shaped profile 9a supporting pin 9b.
  • the pin 9b is adjustably received in the guide 10c of a holding means 10 and can be locked by means of a clamping screw 10b.
  • the retaining means 10 is designed in the manner of a screw in continuation of its longitudinal center axis 10a. The screw part is fastened to the cutting blade carrier 2 by means of the nuts 10d and 10e.
  • the heavy body 18 carrying the blade support 2, the cutting blade 3, the cutting blade 5 and the drive 4 is pivotably received about the central axis 7a of the axis of rotation 7.
  • the axis of rotation 7 extends vertically through the carrier 17 in the region of the free end such that the ends of the axis of rotation 7 form the pivot bearing for the cutting device 1 as a whole.
  • a spring element 14 is integrated between the carrier 17 and the swivel body 18, which permanently generates a torque about the center axis 7a on the swivel body 18 and thus on the entire cutting device 1.
  • the torque ensures that the guide element 9 tracks the cutting device 1 of the cut-away tissue edge 8.
  • the spring element 14 is preferably a compression spring which is held in a receptacle 18a of the swivel body 18 and engages the support 17 flatly at 13 and whose force can be adjusted by means of a threaded pin 14a which can be screwed into the swivel body 18 and locked by a nut 14b is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Looms (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP99101919A 1998-02-19 1999-01-29 Dispositif de coupe pour métiers à tisser Expired - Lifetime EP0937798B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806953A DE19806953C2 (de) 1998-02-19 1998-02-19 Schneideinrichtung in Webmaschinen
DE19806953 1998-02-19

Publications (2)

Publication Number Publication Date
EP0937798A1 true EP0937798A1 (fr) 1999-08-25
EP0937798B1 EP0937798B1 (fr) 2002-06-12

Family

ID=7858291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101919A Expired - Lifetime EP0937798B1 (fr) 1998-02-19 1999-01-29 Dispositif de coupe pour métiers à tisser

Country Status (7)

Country Link
US (1) US6102082A (fr)
EP (1) EP0937798B1 (fr)
JP (1) JPH11279901A (fr)
AT (1) ATE219177T1 (fr)
DE (2) DE19806953C2 (fr)
ES (1) ES2178309T3 (fr)
PT (1) PT937798E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213317A (zh) * 2014-09-18 2014-12-17 青岛天一集团红旗纺织机械有限公司 喷气织机不截筘气动光边装置
CN112359469A (zh) * 2020-10-29 2021-02-12 孙继华 一种纺织布加工工艺

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954139A1 (de) * 1999-11-11 2001-06-07 Dornier Gmbh Lindauer Verfahren und Vorrichtung zur Überwachung des Abziehens von Fangleisten auf Webmaschinen
US6675837B1 (en) * 2000-10-04 2004-01-13 Si Corporation Woven fabric having modified selvage and related assembly and method for the manufacture thereof
US20030045798A1 (en) * 2001-09-04 2003-03-06 Richard Hular Multisensor probe for tissue identification
CN103046214B (zh) * 2012-12-24 2015-06-17 青岛海佳机械有限公司 用于纺织机械中的分幅装置
DE102015212872A1 (de) 2015-07-09 2017-01-12 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015212874A1 (de) 2015-07-09 2017-01-12 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015212871A1 (de) 2015-07-09 2017-01-12 Continental Reifen Deutschland Gmbh Fahrzeugrad mit einem schallabsorbierenden Mittel und Verfahren zur Einbringung des Mittels in das Fahrzeugrad
DE102015213496A1 (de) 2015-07-17 2017-01-19 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015215740A1 (de) 2015-08-18 2017-02-23 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015215739A1 (de) 2015-08-18 2017-02-23 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015215738A1 (de) 2015-08-18 2017-02-23 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102015217356B3 (de) * 2015-09-10 2016-10-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine mit einer Vorrichtung sowie Verfahren zum Halten, Zubringen und Eintragen von Schussfäden in ein Webfach
EP3197029B1 (fr) * 2016-01-19 2019-05-29 Gebrüder Klöcker GmbH Dispositif a moteur electrique destine a former une lisiere de gaze, en particulier pour un metier a tisser, et metier a tisser a projectiles dote d'un tel dispositif
CN108166140A (zh) * 2017-12-28 2018-06-15 苏州朦井纺织科技有限公司 一种纺织机用裁布机构
GB2571563B (en) * 2018-03-01 2023-01-04 Dewhurst James Ltd Woven textile and associated method of manufacture
CN112176509B (zh) * 2020-09-28 2022-04-15 青岛金利华纺织机械有限公司 一种喷气织布机弃边纱回收机构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
DE870230C (de) * 1950-10-28 1953-03-12 Sulzer Ag Verfahren und Vorrichtung zum Durchschneiden von Schussfaeden waehrend des Webens auf Webmaschinen
CH392415A (de) * 1961-05-10 1965-05-15 Rueti Ag Maschf Vorrichtung zum Längsschneiden von Geweben auf Textilmaschinen
DE2042207A1 (de) * 1970-08-26 1972-03-02 Alfred Widmann Vorrichtung zum Beschneiden der Randkanten von Gewebebahnen
FR2271320A1 (en) * 1973-12-28 1975-12-12 Saurer Diederichs Sa Weft cutter for loom comprises cam actuated scissors - pivotal on vertical axis and aligned by feelers acting on woven fabric
FR2276411A1 (fr) * 1974-06-28 1976-01-23 Rueti Ag Maschf Dispositif separateur pour un metier a tisser
GB2021161A (en) * 1978-05-17 1979-11-28 Rossville Mills Inc Shuttleless looms
FR2508942A1 (fr) * 1981-07-06 1983-01-07 Saurer Ag Adolph Dispositif de coupe de bord pour machine a tisser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740666C1 (de) * 1987-12-01 1989-03-02 Dornier Gmbh Lindauer Schusseintragvorrichtung fuer pneumatische Webmaschinen mit wenigstens zwei zu einem Buendel zusammengefassten Blasduesen
JP2762132B2 (ja) * 1989-10-04 1998-06-04 津田駒工業株式会社 レピア織機用のよこ入れ装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
DE870230C (de) * 1950-10-28 1953-03-12 Sulzer Ag Verfahren und Vorrichtung zum Durchschneiden von Schussfaeden waehrend des Webens auf Webmaschinen
CH392415A (de) * 1961-05-10 1965-05-15 Rueti Ag Maschf Vorrichtung zum Längsschneiden von Geweben auf Textilmaschinen
DE2042207A1 (de) * 1970-08-26 1972-03-02 Alfred Widmann Vorrichtung zum Beschneiden der Randkanten von Gewebebahnen
FR2271320A1 (en) * 1973-12-28 1975-12-12 Saurer Diederichs Sa Weft cutter for loom comprises cam actuated scissors - pivotal on vertical axis and aligned by feelers acting on woven fabric
FR2276411A1 (fr) * 1974-06-28 1976-01-23 Rueti Ag Maschf Dispositif separateur pour un metier a tisser
GB2021161A (en) * 1978-05-17 1979-11-28 Rossville Mills Inc Shuttleless looms
FR2508942A1 (fr) * 1981-07-06 1983-01-07 Saurer Ag Adolph Dispositif de coupe de bord pour machine a tisser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213317A (zh) * 2014-09-18 2014-12-17 青岛天一集团红旗纺织机械有限公司 喷气织机不截筘气动光边装置
CN112359469A (zh) * 2020-10-29 2021-02-12 孙继华 一种纺织布加工工艺
CN112359469B (zh) * 2020-10-29 2022-05-13 佛山市东成立亿纺织有限公司 一种纺织布加工工艺

Also Published As

Publication number Publication date
PT937798E (pt) 2002-11-29
ES2178309T3 (es) 2002-12-16
ATE219177T1 (de) 2002-06-15
JPH11279901A (ja) 1999-10-12
DE19806953C2 (de) 2000-03-02
DE19806953A1 (de) 1999-08-26
EP0937798B1 (fr) 2002-06-12
US6102082A (en) 2000-08-15
DE59901688D1 (de) 2002-07-18

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