EP1054088A1 - Dispositif de commande pour actionner le levier de pinçage de la griffe tireuse dans les métiers à pinces - Google Patents

Dispositif de commande pour actionner le levier de pinçage de la griffe tireuse dans les métiers à pinces Download PDF

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Publication number
EP1054088A1
EP1054088A1 EP00109493A EP00109493A EP1054088A1 EP 1054088 A1 EP1054088 A1 EP 1054088A1 EP 00109493 A EP00109493 A EP 00109493A EP 00109493 A EP00109493 A EP 00109493A EP 1054088 A1 EP1054088 A1 EP 1054088A1
Authority
EP
European Patent Office
Prior art keywords
drive
gripper
control device
lever
clamp
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Withdrawn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
EP00109493A
Other languages
German (de)
English (en)
Inventor
Walter Lindenmüller
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 EP1054088A1 publication Critical patent/EP1054088A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions

Definitions

  • the invention relates to a control device for actuating the clamping lever Slave gripper in rapier weaving machines according to the preamble of claim 1.
  • the invention relates to a device for controlling the opening time of the Slave gripper clamping lever for releasing the weft thread.
  • EP 0 526 390 B1 is a rapier weaving machine with a thread properties adjustable weft insertion device.
  • the known solution is based on the clamping lever a bringer or slave gripper in the area of the center by means of a clamp opener actuate, the terminal opener being actuated by a program-controlled servomotor.
  • the previously known solution is therefore not aimed at the time for actuating the To make the clamping lever of a slave gripper variable on the extract side of the shed, namely depending on the parameters of the weft threads to be inserted.
  • the opening movement of the thread clamp of the slave gripper is controlled on the extract side of the shed in the area of the catch strips by means of a control shaft, which opens the thread clamp via a cam and lever mechanism.
  • the disadvantages of this type of control are, on the one hand, that a complex control mechanism is necessary, and, on the other hand, that when weaving with different yarns, the control device, more precisely the position at which the thread clamp of the taker gripper opens and releases the weft thread, is always set to the weft thread which has the greatest elasticity and / or the greatest thickness in order to avoid that the weft thread does not spring back into the shed after the thread clamp of the taker gripper has been opened, namely on the extract side of the shed.
  • the object of the invention is to provide a control device for actuating the Clamping lever of a slave gripper in rapier weaving machines in such a way that the weft drop described above is reduced.
  • An essential feature of the invention is that the steep motor has a suitable means outside and on the extract side of the shed swivel clamp opener is connected and that the actuation time of the clamp opener by single shot electrical control of the servomotor takes place.
  • control device is driven in shots adjustable, i.e. opening time of the Slave gripper clamping lever enables.
  • the Clamping lever of the slave gripper can be controlled at different times, so that the time of opening and thus the length of the over the fabric or over the catch strips protruding thread ends or the weft thread drop can be influenced.
  • Another The advantage is that a weft thread with low elasticity can be released earlier can open the thread clamp of the hook earlier than a weft thread larger Elasticity. This allows weft thread ends of approximately the same length on the fabric or on the Achieve a catch bar and there is less thread waste.
  • the drive is a stepper motor or servo motor educated.
  • Other types of short response drives e.g. magnetic Drives are also conceivable.
  • the control device forms a compact unit which is pivotable and / or is releasably attached to a suitable location on the weaving machine. So it's by swinging it out the unit is easy to remove or change the gripper.
  • the rotary movement of the drive motor is converted by a lever mechanism into an essentially translatory movement for controlling the gripper clamping lever.
  • a clamp opener is provided which is lowered into the path of movement of the gripper by the drive at a predetermined point in time, the clamp lever of the gripper being actuated by the clamp opener and releasing the weft thread.
  • the control device according to the invention is shown in two views.
  • the control device comprises a drive 10 consisting of a drive motor 11 which is preferably designed as a stepper motor or servo motor, and a motor controller 12.
  • the drive 10 is via a lever mechanism with the clamp opener 6 for actuating the Clamping lever 3 of the slave gripper 2 coupled.
  • the lever mechanism includes one with the Motor shaft connected drive lever 9 and a coupling 8, the drive lever 9 with the Terminal opener 6 connects.
  • the rotational movement of the motor is in accordance with the Arrow direction 17 into a translational movement of the coupling 8 or the clamp opener 6 implemented according to arrow direction 18.
  • the clamp opener 6 itself is in a bearing point 7 stored, which is also attached to an associated angle arm 14 of the bearing bracket 13.
  • the control device thus forms a compact unit that is completely on the bearing bracket 13 is arranged, and pivotable or removable with a bearing plate 15 of the machine body 1 is connected.
  • Figure 3 shows the slave gripper 2 in its idle state, i.e. the clamping lever 3, which has a Axis 5 is rotatably attached to the body of the gripper 2, is in the closed Status. This closed state is forced by the force of a spring 2a.
  • the control device is not active in the closed state; the terminal opener 6 is therefore not in operative connection with the actuating cam 4 for the clamping lever 3.
  • the slave gripper 2 moves back and forth according to Figure 1 in weaving mode in the direction of arrow 19, the opening of the Clamping lever 3 is only possible if the slave gripper 2 is in the area below the Terminal opener 6 is located.
  • the motor 11 If the motor 11 is now controlled, its movement is transmitted via the drive lever 9 and the coupling 8 according to FIG. 4 on the clamp opener 6, which is pressed down and actuated the cam 4 of the Klenim lever 3 so that the slave gripper 2 is opened and releases the pinched weft.
  • the control of the cam 4 for actuating the Clamping lever 3 takes place within a one defined by the clamp opener 6 Actuating distance S, so that the opening time or the opening position of the gripper 2 is freely selectable depending on the length of the actuating distance S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP00109493A 1999-05-14 2000-05-04 Dispositif de commande pour actionner le levier de pinçage de la griffe tireuse dans les métiers à pinces Withdrawn EP1054088A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29908543U DE29908543U1 (de) 1999-05-14 1999-05-14 Steuereinrichtung zur Betätigung des Klemmhebels eines Greifers, insbesondere eines Nehmergreifers in Greiferwebmaschinen
DE29908543U 1999-05-14

Publications (1)

Publication Number Publication Date
EP1054088A1 true EP1054088A1 (fr) 2000-11-22

Family

ID=8073537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109493A Withdrawn EP1054088A1 (fr) 1999-05-14 2000-05-04 Dispositif de commande pour actionner le levier de pinçage de la griffe tireuse dans les métiers à pinces

Country Status (3)

Country Link
EP (1) EP1054088A1 (fr)
JP (1) JP2000336548A (fr)
DE (1) DE29908543U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003004746A1 (fr) * 2001-07-05 2003-01-16 Picanol N.V. Procede et dispositif permettant d'ouvrir la pince d'une griffe d'un metier a tisser
ITUB20155478A1 (it) * 2015-11-11 2017-05-11 Pezzoli Miria Dispositivo per l?apertura di un elemento di presa di filo di trama di un telaio a pinza, relativo 5 elemento di presa e metodo di apertura di un tale elemento di presa

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29908543U1 (de) * 1999-05-14 1999-08-12 Lindauer Dornier Gmbh, 88131 Lindau Steuereinrichtung zur Betätigung des Klemmhebels eines Greifers, insbesondere eines Nehmergreifers in Greiferwebmaschinen
DE102009036589A1 (de) 2009-08-07 2011-02-10 Lindauer Dornier Gmbh Vorrichtung zum Übergeben eines bandförmigen Schussmaterials
DE102009037127A1 (de) 2009-08-11 2011-02-17 Lindauer Dornier Gmbh Greiferkopf einer Webmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309700A1 (fr) * 1987-10-02 1989-04-05 Textilma AG Métier à tisser à pinces
EP0526390A1 (fr) * 1991-07-24 1993-02-03 Sulzer RàœTi Ag Machine à tisser à pinces avec un dispositif d'insertion qui peut être ajusté suivant les caractéristiques de fil
DE29908543U1 (de) * 1999-05-14 1999-08-12 Lindauer Dornier Gmbh, 88131 Lindau Steuereinrichtung zur Betätigung des Klemmhebels eines Greifers, insbesondere eines Nehmergreifers in Greiferwebmaschinen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808997U1 (de) 1998-05-18 1998-07-30 Textilma Ag, Hergiswil Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309700A1 (fr) * 1987-10-02 1989-04-05 Textilma AG Métier à tisser à pinces
EP0526390A1 (fr) * 1991-07-24 1993-02-03 Sulzer RàœTi Ag Machine à tisser à pinces avec un dispositif d'insertion qui peut être ajusté suivant les caractéristiques de fil
DE29908543U1 (de) * 1999-05-14 1999-08-12 Lindauer Dornier Gmbh, 88131 Lindau Steuereinrichtung zur Betätigung des Klemmhebels eines Greifers, insbesondere eines Nehmergreifers in Greiferwebmaschinen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003004746A1 (fr) * 2001-07-05 2003-01-16 Picanol N.V. Procede et dispositif permettant d'ouvrir la pince d'une griffe d'un metier a tisser
US7044174B2 (en) 2001-07-05 2006-05-16 Picanol N.V. Method and device for opening a gripper clip of a mechanical-loom gripper
EP1956124A1 (fr) 2001-07-05 2008-08-13 Picanol N.V. Procédé et dispositif d'ouverture ou de fermeture d'une griffe d'un métier à tisser
CN1630748B (zh) * 2001-07-05 2011-07-06 必佳乐有限公司 用于打开织机剑杆的一个剑杆夹线钳的方法和装置
ITUB20155478A1 (it) * 2015-11-11 2017-05-11 Pezzoli Miria Dispositivo per l?apertura di un elemento di presa di filo di trama di un telaio a pinza, relativo 5 elemento di presa e metodo di apertura di un tale elemento di presa
WO2017081712A3 (fr) * 2015-11-11 2017-06-15 P.T.M.T. S.R.L. Dispositif d'ouverture d'un élément de préhension de fil de trame d'une machine à tisser à projectiles, élément de préhension associé et procédé d'ouverture d'un tel élément de préhension

Also Published As

Publication number Publication date
JP2000336548A (ja) 2000-12-05
DE29908543U1 (de) 1999-08-12

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