EP0995825A1 - Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente - Google Patents

Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente Download PDF

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Publication number
EP0995825A1
EP0995825A1 EP99810807A EP99810807A EP0995825A1 EP 0995825 A1 EP0995825 A1 EP 0995825A1 EP 99810807 A EP99810807 A EP 99810807A EP 99810807 A EP99810807 A EP 99810807A EP 0995825 A1 EP0995825 A1 EP 0995825A1
Authority
EP
European Patent Office
Prior art keywords
thread
weft
threads
monitor
presentation
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
EP99810807A
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German (de)
English (en)
Other versions
EP0995825B1 (fr
Inventor
Klaus Berktold
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.)
Itema Switzerland Ltd
Original Assignee
Sulzer Textil AG
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Filing date
Publication date
Application filed by Sulzer Textil AG filed Critical Sulzer Textil AG
Priority to EP19990810807 priority Critical patent/EP0995825B1/fr
Publication of EP0995825A1 publication Critical patent/EP0995825A1/fr
Application granted granted Critical
Publication of EP0995825B1 publication Critical patent/EP0995825B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • the invention relates to a weaving machine with a weft-monitoring Entry system for a variety of different weft threads according to Preamble of claim 1. It also relates to methods for Operating such a weaving machine.
  • This Weaving machine with a weft monitoring entry system is for production of cloths (tissues) provided in which a variety of different Weft threads are woven. Because of the limited space in the The area of the thread feeder is in addition to correctly entered threads Occasionally also weft threads that run through the Weft insertion organ can be entered without an intended cause. Therefore, in the publication mentioned, it is proposed in addition to a second weft monitor to a first weft monitor Monitoring of weft threads must be provided.
  • the first weft guard can be used to do that Measure thread tension. Because of such a thread monitor The measured values obtained can be thread brakes of the entry system adjust that exceeding harmful thread tensions is avoided.
  • the weaving machine with a weft monitoring entry system for one includes a weft insertion member, Thread brakes, a weft selector for feeding a thread or of more than one thread at the same time, a thread monitor for Weft threads that are entered correctly, and an electronic one as well programmable control unit for adjusting the thread brakes.
  • the Weft threads form under the correct entry on the thread monitor Deflection inlet angle, which depend on the choice of weft.
  • the Thread monitor is a function of the inlet angle and the thread tension Signal for the control body can be generated. In the tax office are due to this Signal and based on information about the current template of the Weft or weft, d. H. the presentation of the Threads to be entered through the weft selector, control signals can be calculated and generated.
  • the solution according to the invention permits weft thread monitoring with a single head thread tension sensor. With this is the correct entry for everyone through the weft selector (hereinafter referred to as "color selector") weft threads ("colors” for short) can be monitored and regulated.
  • a “color picker” can be used, which is a Multiple shot template allowed, in which the intended for the shot entry "Colors” are presented with a staggered presentation, so that weft threads simultaneously presented do not interfere with each other. At a double shot template, for example, all "colors" combine with each other as desired. With a staggered presentation the shot template at different inlet angles.
  • the weft insertion plane 130 is the x-y plane through the origin O one Cartesian coordinate system x-y-z; it is as a coordinate network shown.
  • the low positions of the eyelets 41 lie in the plane 130 or adjacent in a plane parallel to this plane 130.
  • the weft entry takes place in the x direction.
  • the warp threads 12 and the fabric 13 produced - at least approximately - also lies in the plane 130, move in the y direction.
  • a (non-material) plane 14 parallel to the z-axis is as Image plane for the representation of the "color selector" 4 (see FIG. 3) additionally drawn.
  • the threads 11, 11 'and 11 cut this plane 14 in the Points 141, 141 'and 141 ".
  • the weft thread 11 forms with a Inlet piece 110, which is between the eyelet 41 and the thread monitor 51st extends, and an entry piece 111 due to the deflection on Thread monitor 51 an angle, the inlet angle ⁇ .
  • One on his one Side free thread piece 112 at the clamp 60 forms the thread end that when cutting in the device 7 or by means of the scissors 70 stayed.
  • Corresponding information signal is generated and on via line 81 the control body 8 transmitted.
  • the speed of the Weaving machine and / or the drive of the weft insertion member for Influencing the movement sequence can be regulated.
  • FIG. 3a shows a normal projection of a “color selector” 4 onto that in FIG. 1 indicated image plane 14 (projection of the coordinate system: O ', x', y ', z ').
  • This "color selector” 4 has a special embodiment (different than in FIG. 1): it comprises one for each thread 11 to be presented Thread feeder 40 with the eyelet 41, which can be moved linearly or also is pivotable (Fig. 2).
  • the eyelet 41 passes through places when it is presented a route or a curve section 43, the one end point 42 of which closer to a presentation or Presentation point 134 is located.
  • the end points 42 usually point different distances from the image plane 14 shown in FIG. 1, however lie on a common “escape line” 42 '.
  • the elevation of the presentation points 134 can be with respect to the plane 130 can also be provided differently. This is illustrated in Figure 3b: a Presentation points 134 'are located on a plane parallel to plane 130 130 '.
  • the end points of the location curve pieces 43 are arranged on rays that in the normal projection onto the plane 14 at different angles cut in the projection point 42 "of the line 42 '.
  • the feed points 134 are so far from endpoints 42 that there is no mutual Disability with simultaneous presentation of several weft threads 11 results.
  • Fig. 4 shows a shot-monitoring entry system in which between the thread brakes 3 (not shown) and the "color selector" 4 (only Thread feeder 40 shown with eyelets 41) eyelet weft guard 50 with adjustable sensitivity are arranged.
  • a second monitor 52 for monitoring of weft threads provided by the Weft insertion organ can be entered with no intended cause (for For details see EP-A 0 816 545 mentioned at the outset. It is the faulty one Entry of a moving weft thread 11 'shown.
  • an electronic control unit 9 intended to adjust the sensitivity of the eyelet guard 50, which for a optimal thread detection is required. Between the control unit 9 and the thread monitors 51 and 52 there are connections 91 and 92 for signal transmissions. Further Connections 94 and 95 exist to the "color selector" 4 and the sensors of the eyelet guard 50. With the control unit 9 is each individual Weft thread 11, 11 ', 11 "can be monitored during the weft insertion Program of the control unit 9 recognizes on the basis of the color control (Connection 94) which "colors" are presented to the gripper. Because of the control unit 9 provides the received information according to a program one of the possible sensitivity levels of the sensors of the Eyelet guard 50 a.
  • the weft monitor 51 in Fig. 1 as well as the two Weft monitor 51 and 52 in Fig. 4 can be designed so that they using optical, piezoelectric, magnetic and / or others electrical means generate suitable control signals.
  • Such means are described in somewhat more detail.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP19990810807 1998-10-07 1999-09-08 Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente Expired - Lifetime EP0995825B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990810807 EP0995825B1 (fr) 1998-10-07 1999-09-08 Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98811008 1998-10-07
EP98811008 1998-10-07
EP19990810807 EP0995825B1 (fr) 1998-10-07 1999-09-08 Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente

Publications (2)

Publication Number Publication Date
EP0995825A1 true EP0995825A1 (fr) 2000-04-26
EP0995825B1 EP0995825B1 (fr) 2003-08-13

Family

ID=26152054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990810807 Expired - Lifetime EP0995825B1 (fr) 1998-10-07 1999-09-08 Métier à tisser avec un système d'insertion comportant un contrôle de la trame pour un nombre de fils de trame différente

Country Status (1)

Country Link
EP (1) EP0995825B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047014A1 (de) 2010-09-30 2012-04-05 Lindauer Dornier Gmbh Ermittlung der Fadenzugkräfte in mehreren Schussfäden einer Webmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH550879A (de) * 1972-10-21 1974-06-28 Loepfe Ag Geb Verfahren zum gleichzeitigen abtasten zweier schussfaeden an einer schuetzenlosen webmaschine.
EP0333302A1 (fr) * 1988-03-16 1989-09-20 Picanol N.V. Machine à tisser à alimentation de fil de trame modifiée
GB2278129A (en) * 1993-05-18 1994-11-23 Nuovo Pignone Spa Device for continuously regulating weft feeler sensitivity in a loom
EP0816545A1 (fr) * 1996-07-03 1998-01-07 Sulzer Rüti Ag Dispositif de détection d'une insertion de trame défecteueuse sur un métier à tisser à griffes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH550879A (de) * 1972-10-21 1974-06-28 Loepfe Ag Geb Verfahren zum gleichzeitigen abtasten zweier schussfaeden an einer schuetzenlosen webmaschine.
EP0333302A1 (fr) * 1988-03-16 1989-09-20 Picanol N.V. Machine à tisser à alimentation de fil de trame modifiée
GB2278129A (en) * 1993-05-18 1994-11-23 Nuovo Pignone Spa Device for continuously regulating weft feeler sensitivity in a loom
EP0816545A1 (fr) * 1996-07-03 1998-01-07 Sulzer Rüti Ag Dispositif de détection d'une insertion de trame défecteueuse sur un métier à tisser à griffes

Also Published As

Publication number Publication date
EP0995825B1 (fr) 2003-08-13

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