EP0039741A1 - Métier à tisser avec insertion de fil au moyen d'un fluide - Google Patents

Métier à tisser avec insertion de fil au moyen d'un fluide Download PDF

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Publication number
EP0039741A1
EP0039741A1 EP80102528A EP80102528A EP0039741A1 EP 0039741 A1 EP0039741 A1 EP 0039741A1 EP 80102528 A EP80102528 A EP 80102528A EP 80102528 A EP80102528 A EP 80102528A EP 0039741 A1 EP0039741 A1 EP 0039741A1
Authority
EP
European Patent Office
Prior art keywords
dropwires
batten
lamellae
channel
sley
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Withdrawn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
EP80102528A
Other languages
German (de)
English (en)
Inventor
Walter Scheffel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP80102528A priority Critical patent/EP0039741A1/fr
Publication of EP0039741A1 publication Critical patent/EP0039741A1/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3006—Construction of the nozzles
    • D03D47/302—Auxiliary nozzles

Definitions

  • the present invention relates to a loom with weft insertion through a flowing medium, in which a guide channel formed from lamellae is fastened to the sley, which, with the movement of the sley, dips into and out of the shed formed from the warp threads.
  • these thread guide channels formed from lamellae must be inserted and removed at a sufficient distance from the last weft thread. In known weaving machines, however, this distance requires large shop lifts and thus large shed heights. This leads to performance limits due to high mass forces with wear, noise and energy requirements.
  • Another known device according to DE-OS 24 20 368 with a movement of the entire thread guide channel superimposed on the loading movement likewise has disadvantages which reduce performance and weave quality.
  • the thread guide channel that is used depends on the density of the reed and thus on the fabric quality to be produced in each case, which changes the reed in the event of changes matching thread guide channel required, which is extremely uneconomical.
  • the thread guide lamella for the warp threads to be moved through the reed creates a passage constricted with increased thread friction, which results in additional material stress and warp thread broth with weaving defects.
  • the channel is formed by upper and lower lamellae, the upper and lower lamellae being in different cross-sectional planes of the channel and the lower lamellae being fixedly attached to a sley, while the upper lamellae have their own guide system, which is designed in such a way that, in each movement phase, points of the top lamella furthest away from the loading pivot point result in predetermined trajectory curves which are the furthest Cut the points of the lower slats at a distance from the loading point of rotation so that the path curve of the upper slats is less close to the loading point of rotation at the web loading stop than at the position of the sley loading.
  • the configuration can advantageously be such that the upper slats are mounted at a pivot point fixed to the sley and are connected to a fixed point via a coupling rod.
  • the speed and thus the weaving performance of a weaving machine designed according to the invention can be increased considerably without increasing energy requirements and susceptibility to wear.
  • the material of the warp is less stressed due to the shorter stroke and friction paths of the reed and heald strands, despite increasing speed.
  • the noise level is also favorably influenced by higher frequencies and lower mass forces.
  • Figure 1 shows a side view of the arrangement in the entry position with the weft thread 7 and the flow outlet opening 4, with the axis of the outlet jet 5, which axis is close to the wide channel opening on the blade side and is directed such that it becomes a greater distance downstream from the plane of the reed 6 and has a decreasing distance from the channel axis 3 downstream, the axis of the outlet jet 5 not intersecting the envelope surface of that side of the channel 3 on which the flow outlet openings 4 are located.
  • the open channel 3 is dynamically closed on the leaf side and monostable, energy-saving thread guidance is achieved.
  • FIG. 2 shows the arrangement during the weft thread stop, the weft thread channel 3, which is designed in two parts according to the invention, being opened and by the guide system assigned to the upper lamellae 1, a path curve 16 is imparted synchronously with the loading movement, which deviates from the path curve 15 of the lower lamellae 2 in such a way that it deviates Cut trajectories 15 and 16 so that a distance according to the distance A is reached between the optic thread stop with fabric 13 until the part 1 of the channel 3 moved so separately is immersed.
  • This sufficient distance A ensures that streak-free fabric with low thread friction is achieved despite a short loading stroke.
  • the upper slats 1 are given the trajectory 16 via the assigned guide system in such a way that the upper slats 1 are firmly connected via a cross member 22 to the lever 18, which is mounted on the drawer at 17, and the lever 18 via, between the pivot point 20 and the fixed point 21 located coupling rod 19 is moved with the loading movement.
  • Figure 3 shows the arrangement according to the invention on the Loom while moving into the shed 11.
  • a two-part thread guide channel 3 is shown in the closed state from four sides, which is formed from the upper lamellae 1 and the lower lamellae 2, the upper and front envelope surface from the lamellae 1 and the lower envelope surface arises from the slats 2.
  • the channel 3 formed from both types of lamella 1 and 2 lying in different channel cross sections is wide open on the reed side.
  • the thread guide channel 3 consists of lamellae with flow outlet openings 4 and those without, the cross section of the channel 3 widening in steps after a lamella with flow outlet opening 4 according to FIGS. 4, 5 and 6 and then narrowing in the entry direction to the next lamella with flow outlet opening 4 .
  • FIGS. 8 and 9 show the arrangement according to the invention of a two-part thread guide channel 3 in top view and side view, but in the open state according to FIG. 2 during the weft stop 13.
  • a further advantage of the arrangement described above on a weaving machine is the firm connection of the flow outlet openings 4 with their feeds together with the lower lamellae 2 on the sley 8, because this gives the transport jet 5 a precise and stable direction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP80102528A 1980-05-08 1980-05-08 Métier à tisser avec insertion de fil au moyen d'un fluide Withdrawn EP0039741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP80102528A EP0039741A1 (fr) 1980-05-08 1980-05-08 Métier à tisser avec insertion de fil au moyen d'un fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80102528A EP0039741A1 (fr) 1980-05-08 1980-05-08 Métier à tisser avec insertion de fil au moyen d'un fluide

Publications (1)

Publication Number Publication Date
EP0039741A1 true EP0039741A1 (fr) 1981-11-18

Family

ID=8186679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102528A Withdrawn EP0039741A1 (fr) 1980-05-08 1980-05-08 Métier à tisser avec insertion de fil au moyen d'un fluide

Country Status (1)

Country Link
EP (1) EP0039741A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534603A1 (fr) * 1982-10-14 1984-04-20 Alsacienne Constr Mat Tex Dispositif permettant de favoriser l'insertion du fil de trame sur un metier a tisser
EP0133415A2 (fr) * 1983-07-22 1985-02-20 Rüti-Te Strake B.V. Métier à tisser pneumatique
WO1999064652A1 (fr) * 1998-06-10 1999-12-16 Picanol N.V. Metier a tisser
CN104153102A (zh) * 2014-07-22 2014-11-19 扬中市金德纺织机械设备厂 毛巾织机打纬总成

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932836A1 (de) * 1968-07-04 1970-01-15 Elitex Zd Y Tectilniho Strojir Luftkonfusor
DE2056992A1 (en) * 1970-11-20 1972-05-25 Scheffel, Walter, 8832 Weissenburg Loom - in which a pick is carried out pneumatically
DE2454878A1 (de) * 1974-11-20 1976-05-26 Vyzk Vyvojovy Ustav Vseobe Tragwerk eines aus den lamellen gebildeten kanals an nichtkonventionellen webmaschinen
DE2806301A1 (de) * 1978-02-15 1979-08-16 Walter Scheffel Vorrichtung zum schusseintrag mittels eines fluidums an webmaschinen
WO1980000087A1 (fr) * 1978-06-12 1980-01-24 Petschner G Procede et dispositif pour l'insertion de la trame au moyen d'un courant de fluide dans un metier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932836A1 (de) * 1968-07-04 1970-01-15 Elitex Zd Y Tectilniho Strojir Luftkonfusor
DE2056992A1 (en) * 1970-11-20 1972-05-25 Scheffel, Walter, 8832 Weissenburg Loom - in which a pick is carried out pneumatically
DE2454878A1 (de) * 1974-11-20 1976-05-26 Vyzk Vyvojovy Ustav Vseobe Tragwerk eines aus den lamellen gebildeten kanals an nichtkonventionellen webmaschinen
DE2806301A1 (de) * 1978-02-15 1979-08-16 Walter Scheffel Vorrichtung zum schusseintrag mittels eines fluidums an webmaschinen
WO1980000087A1 (fr) * 1978-06-12 1980-01-24 Petschner G Procede et dispositif pour l'insertion de la trame au moyen d'un courant de fluide dans un metier

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534603A1 (fr) * 1982-10-14 1984-04-20 Alsacienne Constr Mat Tex Dispositif permettant de favoriser l'insertion du fil de trame sur un metier a tisser
US4529015A (en) * 1982-10-14 1985-07-16 Societe Alsacienne De Construction De Material Textile Device designed to help the insertion of a weft yarn in a weaving loom
EP0133415A2 (fr) * 1983-07-22 1985-02-20 Rüti-Te Strake B.V. Métier à tisser pneumatique
EP0133415A3 (fr) * 1983-07-22 1985-03-20 Rüti-Te Strake B.V. Métier à tisser pneumatique
WO1999064652A1 (fr) * 1998-06-10 1999-12-16 Picanol N.V. Metier a tisser
BE1012030A3 (nl) * 1998-06-10 2000-04-04 Picanol Nv Inrichting voor een weefmachine.
CN104153102A (zh) * 2014-07-22 2014-11-19 扬中市金德纺织机械设备厂 毛巾织机打纬总成

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Effective date: 19830622