EP0984089B1 - Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes - Google Patents

Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes Download PDF

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Publication number
EP0984089B1
EP0984089B1 EP19990810618 EP99810618A EP0984089B1 EP 0984089 B1 EP0984089 B1 EP 0984089B1 EP 19990810618 EP19990810618 EP 19990810618 EP 99810618 A EP99810618 A EP 99810618A EP 0984089 B1 EP0984089 B1 EP 0984089B1
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EP
European Patent Office
Prior art keywords
thread
accordance
clamping
clamp
rapier
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.)
Expired - Lifetime
Application number
EP19990810618
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German (de)
English (en)
Other versions
EP0984089A1 (fr
Inventor
Godert Dr. De Jager
Paul Lincke
Frank Dr. Lehnert
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
Sultex AG
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 Sultex AG filed Critical Sultex AG
Priority to EP19990810618 priority Critical patent/EP0984089B1/fr
Publication of EP0984089A1 publication Critical patent/EP0984089A1/fr
Application granted granted Critical
Publication of EP0984089B1 publication Critical patent/EP0984089B1/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
    • D03D47/12—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
    • D03D47/236—Drawing 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

Definitions

  • the invention relates to a method for entering a Weft thread in a rapier weaving machine according to the Preamble of claim 1, a system for performing of the method and a rapier weaving machine with one such system.
  • the bringer gripper can and the holster gripper each with the same thread clamp or with different thread clamps, i.e. negative, positive or a mixed form of terminal types be equipped.
  • the negative thread clamps point the disadvantages that when taking over the Weft thread through the holster gripper, thread remnants or Fibrils in the thread clamp of the handler stay behind or that e.g. the thicker weft is lost even before the grabs take over.
  • the advantage achievable with the invention is in essential to see that the attitude of Thread clamp without loss of performance and each at running weaving machine.
  • the system has one Bring gripper 1 with a thread clamp 4 and one Arrangement 3 for adjusting the clamping force.
  • the Thread clamp 4 comprises a first clamping part 6, which on Housing of the gripper 1 is attached, a second Clamping part 7 with an extension 8 which is on the housing of the Gripper 1 is mounted and a leaf spring 9, the self-supporting on the housing of the gripper 1 by means of a Holder 10 is attached so that the free spring end with a certain bias on the bottom of the Approach 8 is applied.
  • the arrangement 3 comprises a first device 11 for Setting the clamping force on the housing of the gripper is arranged and a second device 21 for Actuation of the first device, which is arranged stationary is.
  • the first device 11 contains a drive pulley 12 with a pin 13, a deflection plate 14, a Kinematic link 15, which over the disks 12, 14th is guided and comprises a braking part 16, in which the discs are rotatably mounted so that an escapement between the discs and the brake part is available.
  • the second device 21 contains a backdrop 22 and an electric drive 23 for adjusting the backdrop, which is fixed in place.
  • the backdrop 22 is one-sided open and preferably funnel-shaped.
  • the system has one Holer gripper 2 with a thread clamp 31 and one Arrangement 30 for adjusting the width of the clamping gap the thread clamp.
  • the thread clamp includes one hook-shaped clamping part 32 which is integral with the Housing of the gripper 2 is formed, a clamping tongue 33, which cooperates with the clamping part and a Leaf spring 34.
  • the clamping tongue 33 is on a two-armed Lever 35 articulated.
  • the lever 35 is on a pin 36 stored, which is attached to the housing of the holer gripper 2 is (Fig. 3).
  • the lever 35 is arranged and designed that the one lever arm 37 on the leaf spring 34 rests and the other lever arm 38 with one not shown in and known device for Opening the thread clamp can be engaged.
  • the arrangement 30 has a first device, the one Eccentric 39, which is mounted in a braking part and one Contains pin 40 which is arranged on the eccentric to the To actuate the clamping tongue and a second device 21st on.
  • the fourth device 4 shows a picker 41 with a second one Execution of an arrangement 42 which is a first device 43 to adjust the width of the clamping gap and the contains second device 21.
  • the first device 43 contains a shaft 44, two bearing parts 45, which on the housing of the holer gripper 41 are attached, an eccentric 46, which is arranged on the shaft 44 and on the lever 37 abuts and a pin 47 which is attached to the shaft 44 and can be brought into and out of engagement with the backdrop 22 is.
  • FIG. 5 shows a modified arrangement 52 with the first device 43 (Fig. 4) and with a second Device 53.
  • the second device contains one Drive motor 51 and a disk 55 which on the Motor shaft 54 is attached.
  • the disc 55 is with a Provide slot 56.
  • On the shaft 44 of the first is a lever 57 with a pin 58 provided which with the slot 56 in and out Intervention can be brought.
  • the slot has one Inlet section on.
  • Fig. 6 shows a gripper 61 with the Thread clamp 4 and with an arrangement 62 which is a first Device 63 for adjusting the clamping force and the second device 21 for actuating the first Device 63 includes.
  • the first device 63 has a bearing block 65, which on the housing of the carrier gripper 61st is attached, a toggle 66, which on the bearing block is pivotally mounted, an actuator 67 which Leaf spring 9 engages under a lever 68, on the one hand with the toggle and on the other hand with the actuator is rotatably connected and a pin 69 on the can come in and out of engagement with the backdrop 22.
  • the first device 73 has a bearing block 75, which on the housing of the carrier gripper 71st is attached, a T-shaped lever 76 which on Bearing bracket is pivotally mounted, an actuator 77, the the leaf spring 9 engages under a lever 78 which on the one hand with the lever 76 and on the other hand with the Actuator is movably connected and a first and second pin 79.80 on that with the second device 74 can come in and out of engagement.
  • the second Device 74 has a bearing block 81 which is stationary is arranged, two levers 82 connected to the bearing block are articulated and two electric drives 83, the by means of connecting pieces 84 each with a lever 82 are connected to the first by pivoting the lever Device to operate.
  • Figure 8 shows the elements required for deployment of a weft thread to be entered is at least necessary are a thread supply 85, a thread store 86, a thread brake 87, a thread feeder 88 and one Control unit 89 and the systems with the grabber 1 or Holgerreifer 2, whose movement from the Figure 9 can be seen.
  • Fig.8 shows, the Weft from the left side of the weaving machine the rapier 1 inserted into a shed and in the Middle of the weaving width A taken over by the holper 2 and pulled out of the shed.
  • the sequence of movements is sinusoidal, i.e.
  • each gripper 1,2 leads within one Rotation angle of 360 ° a back and forth movement, whereby at 0 °, 180 ° and 360 ° the movement reversal with a standstill occurs.
  • the width of the weaving machine is set up so that a section of the movement of the grippers outside of the fabric width that is made up of symmetrical return and forward sections composed.
  • the clamping force of the thread clamp of the Bing gripper can be adjusted if necessary.
  • use one in the course of the weft measured variable, e.g. the thread tension or the Type of yarn and / or thickness of the yarn to be entered Weft produces a signal in the control unit 89.
  • the new setting is made based on this signal the control unit 89 and when the pin 13 is in the Backdrop 22 is located.
  • the backdrop can also be seen before Immersion of the pen 13 can be preset so that the pen over the funnel-shaped inlet automatically moved to a new position.
  • the Holer gripper 2 the weft thread from the bringer gripper 1.
  • the thread clamp has a wedge-shaped Clamping gap in which the weft thread through the in the backward movement of the Holger gripper becomes.
  • the pin 40 To adjust the width of the clamping gap by means of the second device 21 of the eccentric 39 adjusted the pin 40. This will make the two-armed lever 35 pivoted and the clamping cables 33 withdrawn, like this is shown in Fig. 3.
  • FIG. 10 shows a thread clamp with a clamping gap 100.
  • the arrangement contains a wedge-shaped Support part 101, which on the housing of a gripper e.g. is longitudinally adjustable, a guide part e.g. in the form of a roller assembly 102, which on the Support part 101 rests and with the leaf spring one Thread clamp is engaged and a lever 103, which the role arrangement carries and with one not Actuator shown is connected.
  • the thread clamp is also provided with a stop element 104 to weft in the nip 100 to hold.
  • the Fig. 11 shows a system in which the setting of the Thread clamp is done pneumatically and which is used for the grab grapple and grab grapple.
  • the System includes a gripper with a thread clamp 105, to pinch a weft and assembly 106 to adjust the thread clamp.
  • the thread clamp has a first clamping part 107 and a second Clamping part 108 with approach to the first clamping part is articulated so that a gap 109 is present as well a stop member 110 to pull the To prevent weft in the gap.
  • the arrangement 106 comprises a first device 111 for setting the Clamping force and a second device 112 for actuation the first device.
  • the first device contains a Valve 115 a bellows 116, which is connected to the second clamping part 108 is connected and a line 117 to the bellows with to connect the valve.
  • the second device 112 contains a receiving part 118 provided with seals which is fixed in the gripper's track is brought into and out of engagement with the valve can be and a pin 119 to open the valve.
  • the second device 112 is each via hose lines 120 with a control valve 113 connected by the control unit 89 (FIG. 8) is controlled to adjust the clamping force.
  • a control valve 113 connected by the control unit 89 (FIG. 8) is controlled to adjust the clamping force.
  • the hose line 120 connect directly to the bellows 116 so that the first Device 111 can be omitted.
  • Fig. 13 shows an embodiment of the system, at which the setting of the thread clamp on direct done electrically.
  • 13 shows the system with the gripper a thread clamp 4, the is designed the same as thread clamp according to FIG. 1 and an arrangement 121.
  • the arrangement has a first Device 122 for adjusting the clamping force of the Thread clamp and a second device 123 for actuation of the first device 122.
  • the device for The clamping force is set on the gripper housing mounted and contains a spindle with a thread 125 at one end, two bearing blocks 126 for the spindle and an actuator 127 which is screwed onto the threaded spindle and engages under the leaf spring of the thread clamp.
  • the Device 123 for actuating device 122 for Setting the clamping force includes an electric one Drive, the fixed part 128 on a holder 129 is attached so that it is arranged in a stationary manner is.
  • the rotating part 130 of the drive is as End portion of the spindle is formed.
  • the clamping force of the thread clamp if necessary during the return movement can be reset, i.e. if the rotating part 130 of the spindle with the fixed Part 128 is engaged.
  • the threaded spindle is through the drive 123 driven so that the actuator 127th is moved along the leaf spring to the Change spring characteristics.
  • direct electrical Drive a geared motor can also be used, around the threaded spindle via a gear ratio actuate. This will limit any Space taken into account.
  • 14 shows an embodiment of the system at which the setting of the width of the clamping gap electrical way.
  • 14 shows the system with the Holgerreifer a thread clamp 131 and an arrangement 132.
  • the thread clamp has one hook-shaped clamping part 133, which is integral with the Housing of the gripper is designed to be movable Clamping tongue 134, which with the hook-shaped clamping part in and is disengageable, a spring 135 to the Hold the thread clamp in the clamped position and use a lever 136 on to the thread clamp against the force of the spring to open.
  • the arrangement 132 comprises a first one Device 138 for adjusting the width of the clamping gap the thread clamp and the second device 123 for Actuate the first device 138.
  • the first Device is mounted on the housing of the gripper and contains a threaded spindle 125 at one end, one Bearing block 126 for the spindle and a U-shaped organ 141, which is screwed onto the threaded spindle and with the movable clamping tongue 134 is connected.
  • the second device 123 is the same as that in Fig. 13 shown and is therefore not described.
  • the width of the clamping gap is Thread clamp new during the return movement if necessary set, i.e. if the rotating part 130 of the Spindle with the fixed part 128 of the drive in Intervention is.
  • the threaded spindle is driven by the drive 123 driven so that the U-shaped member 141 along the spindle moves and thus the movable clamping tongue with respect to the hook, so that the width of the Gap is changed.
  • the system has one Bring gripper 151 with a thread clamp 152 and one Arrangement 153 for adjusting the clamping force.
  • the Thread clamp comprises a first clamping part 154, which on Housing of the gripper 151 is attached to a second Clamping part 155 with a shoulder 156, the first Clamping part 154 is mounted and a coil spring 157.
  • the arrangement 153 comprises a first device 158 for Setting the clamping force on the housing of the gripper is arranged and a second device 159 for Actuation of the first device, which is arranged stationary is.
  • the first device 158 contains an actuating lever 161, which is mounted on the housing of the gripper 151 and the Spring 157 carries an eccentric 162, which with the Control lever 161 is in contact and an axis 163, the is supported in bearing blocks 164.
  • the eccentric is on attached to one end of the axle.
  • the axis has one Section 165, which with the second device 159 in and can be disengaged.
  • the second device 159 includes a drive 166, a Gearbox 167 and an actuator 168, which on a carrier 169 are mounted or stored.
  • This system has the same function as the above described systems and is therefore not detailed described.
  • the process uses a thread brake and a weft thread fed by means of Gripper with thread clamp entered in a shed, whereby during the process of inserting the weft Thread clamp freely selectable for every weft insertion is set. This ensures that weft yarns different designs and thicknesses in one shed can be entered.
  • the system comprises a gripper 1 with thread clamp 4 and an arrangement 4 with a first device 11 for Adjust the thread clamp and with a second Device 21 for actuating the first device.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (17)

  1. Procédé d'insertion d'un fil de trame dans une machine à tisser à pinces, où le fil de trame amené par un frein de fil (87) et un organe de présentation de fil (88) est inséré au moyen de pinces (1,2, 41, 61, 71, 151) à pince-fil (4, 31, 105, 131, 152) dans une foule, caractérisé en ce que le pince-fil, à l'aide d'un premier dispositif (11, 43, 63, 73, 111, 122, 138, 158), qui est disposé à un boítier de la pince, est réglé par trame individuelle et selon une sélection libre à l'intérieur d'un cycle de tissage, en ce qu'à cette fin, le premier dispositif est mis en prise avec un deuxième dispositif (21, 53, 74, 112, 123, 159) qui est disposé d'une manière localement fixe dans le chemin de déplacement de la pince, et en ce que le premier dispositif est actionné au moyen du deuxième dispositif.
  2. Procédé selon la revendication 1, caractérisé en ce que la force de serrage du pince-fil est réglée.
  3. Procédé selon la revendication 1, caractérisé en ce que la largeur de la fente de serrage est réglée.
  4. Procédé selon la revendication 1, caractérisé en ce que la force de serrage et la largeur de la fente de serrage sont réglées.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le réglage de la force de serrage et de la largeur de la fente a lieu dans la zone à l'extérieur de la largeur d'un tissu à fabriquer.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le réglage de la force de serrage respectivement de la largeur de la fente de serrage a lieu en fonction d'une grandeur de mesure, notamment de la force de traction du fil de trame.
  7. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le réglage de la force de serrage respectivement de la largeur de la fente de serrage a lieu en fonction du type de fil et/ou de l'épaisseur du fil de trame à insérer.
  8. Système pour l'insertion d'un fil de trame dans une machine à tisser à pinces, ce système présentant une pince (1, 2, 41, 61, 71, 151) avec un pince-fil (4, 31, 105, 121, 131, 152) pour serrer le fil de trame avec celui-ci, ainsi qu'un agencement (3, 30, 42, 52, 62, 72, 106, 121, 132, 153) pour le réglage du pince-fil, pour serrer les fils de trame à insérer en fonction du type de fil, caractérisé en ce que l'agencement présente un premier dispositif (11, 43, 63, 73, 111, 122, 138) qui est monté sur la pince, pour régler le pince-fil à l'intérieur d'un cycle de tissage par trame individuelle et librement sélectivement, et un deuxième dispositif (21, 53, 74, 112, 123) pour actionner le premier dispositif, qui est disposé d'une manière localement fixe dans le chemin de déplacement de la pince et qui peut être mis en prise avec le premier dispositif.
  9. Système selon la revendication 8, avec une pince qui comporte un pince-fil (4) avec une partie de serrage fixe, une partie de serrage mobile et un élément de ressort, caractérisé en ce que le premier dispositif présente un organe (17, 67, 77, 127, 141) qui est en liaison avec l'élément de ressort et des moyens qui sont destinés à déplacer l'organe relativement à l'élément de ressort pour modifier la caractéristique du ressort et donc pour régler la force de serrage.
  10. Système selon la revendication 8, avec une pince qui comporte un pince-fil (31, 131) avec une partie de serrage fixe et une partie de serrage mobile, qui forment une fente de serrage, caractérisé en ce que le premier dispositif présente un organe (39, 46, 141) qui est en liaison avec la partie de serrage mobile ainsi que des moyens qui sont destinés à déplacer la partie de serrage mobile pour régler la largeur de la fente de serrage.
  11. Système selon la revendication 10 ou 11, caractérisé en ce que les moyens comportent un élément d'actionnement (13, 40, 46, 58, 69, 79, 80, 130) qui vient en et hors prise avec le deuxième dispositif.
  12. Système selon l'une des revendications 8 à 12, caractérisé en ce que le deuxième dispositif présente au moins un élément de positionnement (22, 46, 55, 82, 130, 168) et au moins un entraínement (23, 51, 83, 128, 166) qui est relié à l'élément de positionnement, où l'élément de positionnement est destiné à venir en contact avec les moyens du premier dispositif pour régler le pince-fil.
  13. Système selon la revendication 13, caractérisé en ce que l'entraínement est réalisé comme moteur à engrenage (166, 167).
  14. Système selon la revendication 8, caractérisé en ce que le premier dispositif (116) présente une soufflet qui est relié au pince-fil, un conduit (117) pour l'amenée d'air comprimé et une vanne (115), et en ce que le deuxième dispositif (112) présente un organe (119) pour l'actionnement de la vanne.
  15. Système selon la revendication 9, caractérisé en ce que le premier dispositif (122, 138) présente une broche (125) avec un filetage et un organe de positionnement (127, 141) qui est vissé sur la broche, et en ce que le deuxième dispositif (123) comporte un entraínement électrique avec un stator (128) et un rotor (130) qui est réalisé comme un tronçon de la broche.
  16. Système selon la revendication 8, caractérisé en ce que le premier dispositif comporte une partie d'application (101) en forme de coin, une partie de guidage (102) entourant l'élément de ressort du pince-fil, qui s'applique à la partie d'application et des moyens (103) qui sont destinés à déplacer la partie de guidage le long de l'élément de ressort et de la partie d'application pour régler la force de serrage et la largeur de la fente de serrage.
  17. Machine à tisser avec un système selon l'une des revendications 8 à 16, caractérisée en ce que le deuxième dispositif est disposé respectivement au côté d'insertion et/ou au côté d'extraction à l'extérieur d'une foule à former au bâti de la machine à tisser.
EP19990810618 1998-09-02 1999-07-12 Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes Expired - Lifetime EP0984089B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990810618 EP0984089B1 (fr) 1998-09-02 1999-07-12 Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98810869 1998-09-02
EP98810869 1998-09-02
EP19990810618 EP0984089B1 (fr) 1998-09-02 1999-07-12 Procédé et dispositif pour l'insertion d'un fil de trame dans un métier à tisser à griffes

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EP0984089A1 EP0984089A1 (fr) 2000-03-08
EP0984089B1 true EP0984089B1 (fr) 2003-12-10

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018774A3 (nl) * 2009-06-10 2011-08-02 Picanol Nv Grijpereenheid, controlesysteem voor een grijpereenheid en weefmachine.
DE102010044127B3 (de) 2010-11-18 2011-12-29 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Greiferkopf zum Eintrag von Schussfäden an einer Greiferwebmaschine sowie eine Greiferwebmaschine mit einem derartigen Greiferkopf
CN114622331B (zh) * 2022-03-21 2023-03-21 武汉纺织大学 一种利用弹簧和吸盘进行能量回收的超宽门幅引纬系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931837A (en) * 1975-03-05 1976-01-13 Rockwell International Corporation Carrier for shuttleless loom
CH639439A5 (de) * 1979-09-05 1983-11-15 Rueti Ag Maschf Greiferkopf fuer webmaschinen mit entnahme des schussfadens von ortsfesten spulen.
IT1238606B (it) * 1990-01-26 1993-08-18 Nuovo Pignone Spa Dispositivo perfezionato di pinzatura del filo di trama in un telaio tessile senza navetta
IT1245579B (it) * 1991-03-22 1994-09-29 Somet Soc Mec Tessile Pinza portante per telai di tessitura senza navetta
DE19535895C1 (de) * 1995-09-27 1996-06-13 Dornier Gmbh Lindauer Einrichtung zum Reduzieren der Belastung eines in das Webfach einer Webmaschine einzutragenden Schußfadens
KR20000005448A (ko) * 1996-04-19 2000-01-25 쉬테베르링크 미헬, 쉬테베르링크 파트릭 직조기 그리퍼의 그리퍼 고정부의 개방을 위한 장치2
DE29808997U1 (de) * 1998-05-18 1998-07-30 Textilma Ag Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine

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