EP0615560B1 - Procede et dispositif de serrage de fils - Google Patents

Procede et dispositif de serrage de fils Download PDF

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Publication number
EP0615560B1
EP0615560B1 EP92923725A EP92923725A EP0615560B1 EP 0615560 B1 EP0615560 B1 EP 0615560B1 EP 92923725 A EP92923725 A EP 92923725A EP 92923725 A EP92923725 A EP 92923725A EP 0615560 B1 EP0615560 B1 EP 0615560B1
Authority
EP
European Patent Office
Prior art keywords
thread
clamping
tape
accordance
clamped
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
EP92923725A
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German (de)
English (en)
Other versions
EP0615560A1 (fr
Inventor
Reinhold Universal Maschinenfabrik Schimko
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.)
Henkel Dorus GmbH and Co KG
Original Assignee
Dr Rudolf Schieber GmbH and Co KG
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 Dr Rudolf Schieber GmbH and Co KG filed Critical Dr Rudolf Schieber GmbH and Co KG
Publication of EP0615560A1 publication Critical patent/EP0615560A1/fr
Application granted granted Critical
Publication of EP0615560B1 publication Critical patent/EP0615560B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D04B15/565—Associated thread-clamping or thread-severing devices

Definitions

  • the invention relates to a thread clamping device according to the preamble of claim 1 or 2.
  • the invention further relates to a method for clamping at least one thread in a textile machine.
  • Another thread clamping device is known in connection with a flat knitting machine from JP 22 69 848 A2.
  • a separate clamping device with its own control and drive devices is provided for each thread to be clamped.
  • the individual clamping devices have a complicated mechanical structure.
  • the drive devices and control processes are complicated and cumbersome, because for each thread to be clamped, a separate clamping device that has to be opened and closed, drive device and control arrangement is required.
  • Another major disadvantage of these conventional clamping devices is that they take up a relatively large amount of space, which in many cases is not available. When using such clamping devices in connection with flat knitting machines, the number of clamping devices is therefore limited, so that only a few threads can be clamped.
  • the invention has for its object to provide a thread clamping device and to provide a method for clamping threads with which or with which it is possible in a simple manner and with little mechanical, constructive and control engineering effort, a large number of threads in a textile machine to hold or clamp.
  • the clamping band device according to the invention is very simple, both in terms of construction and in terms of control technology. However, it is particularly advantageous that only a single device is required for a large number of threads which are to be clamped. This eliminates the restrictions on conventional clamping of only a certain number of threads.
  • the band to be clamped can namely be moved a certain distance whenever a new thread to be clamped is to be clamped, so that the clamped threads are clamped one after the other in the clamping band device and held in it.
  • the clamping band device has clamping bands which are pressed against one another in the thread clamping area and can be moved in the same direction of travel of the band.
  • the belt run of the at least one clamping band can preferably be controlled with a stepper motor.
  • the running speeds and the periods in which the two clamping bands pressed against one another are preferably the same for the two clamping bands.
  • At least one movable hook is provided for feeding the thread to be clamped in the clamping area of the clamping band device.
  • the movable thread feed hook is controlled so that, when the thread is to be clamped, it is actuated so that the thread to be clamped gets into the clamping area of the clamping band device and can be gripped by it.
  • a movable thread feed hook is sufficient for feeding the thread to be clamped into the clamping area of the clamping band device, however, it is more advantageous to provide a thread supply hook on each side of the clamping band device.
  • the thread to be clamped can be inserted transversely to the direction of movement of the clamping bands, so that the thread is moved and held uniformly and in a defined manner by the clamping band device.
  • At least one of these thread feed hooks is particularly advantageous even when there are cutting or shearing devices for the thread. At least one of these thread feed hooks enables the thread to be cut to be inserted deeply and reliably into the open scissors.
  • the thread feed hook (s) can preferably be moved in a controllable manner with at least one stepper motor. Although the movement of the two hooks takes place evenly and simultaneously when using two thread feed hooks, it is also possible and advantageous in individual applications to control and move the individual thread feed hooks separately from one another.
  • a thread cutting device for separating the clamped thread is provided in connection with the clamping band device.
  • a further development of the clamping device according to the invention is very advantageous, according to which a thread deflecting element is provided for deflecting a thread from the clamping area of the clamping band device.
  • the at least one thread deflecting element can be immovable, but also movable, in order to ensure optimal deflection of the thread not to be clamped, depending on the given and desired possibilities.
  • At least one thread feed hook is preferably designed so that it can also grip the deflected thread. For example, this is possible because the hook is wide. This makes it possible to grasp the deflected thread with at least one thread feed hook and, for example, to feed it to a cutting device.
  • the thread clamping device according to the invention can advantageously be used in connection with a flat knitting machine having needle beds.
  • the clamping band device according to the invention is arranged on at least one side of the flat knitting machine at the lateral end of the needle beds.
  • the clamping band device is preferably provided below a level predetermined by the knitting area. As a result, the threads to be clamped are kept below this level predetermined by the knitting area.
  • the cutting device is preferably arranged between the clamping band device and the needle beds or the knitting area.
  • a storage area for the nuts with the threads to be clamped and / or cut is provided on the side of the clamping band device facing away from the needle bed.
  • the sockets with the threads that are not currently used for the knitting process "park" outside the needle area of the knitting machine until the sockets with their thread guide boxes are moved back into the needle area.
  • the process steps mentioned can preferably be repeated for a plurality of threads, so that a plurality of threads can be held in succession with the single clamping band device, without a separate clamping device being required for each thread.
  • the clamped thread is released by cutting off the thread region separated from the thread to be processed by the clamping device.
  • the clamped thread area is then transported as thread remnant by the clamping band device and falls out of the clamping band device at the end of the clamping area.
  • FIG. 1 and 2 schematically show an embodiment of the clamping band device 1 according to the invention in connection with a conventional flat knitting machine 2 which has two needle beds 3, 4 with a needle 5 and knock-over combs 6 which are arranged opposite one another in a roof shape.
  • the flat knitting machine is of a conventional type and therefore does not require further explanation in this context.
  • the clamping band device 1 is arranged on the front side of the flat knitting machine and, with respect to a plane predetermined by the knitting area, lower than the needle beds 3, 4 (cf. FIG. 1).
  • the clamping band device 1 has two clamping bands 7, 8, which are pressed against one another on their mutually facing outer surfaces with spring devices, not shown, and are driven via rollers 9, 10 such that the contacting outer surfaces of the clamping bands are moved downward in the clamping region at the same speed .
  • the direction of rotation of the rollers 9, 10 is indicated by arrows.
  • the rollers 9, 10 are together or each controllably rotated separately by a stepper motor, not shown.
  • FIG. 2 there is a thread feed hook 11 or 12 on each side next to the clamping band device 1, which hooks are moved up or down together or individually via corresponding drive devices 13, 14, for example by means of a stepping motor (not shown).
  • the shape of the thread feed hook 11 in its upper part is shown schematically in FIG. 1.
  • a cutting device 15 in the form of a pair of scissors with cutting blades 16 and 17 is shown in a schematic representation.
  • the cutting device 15 is of conventional design and can be actuated in a controllable manner, for example, by means of a motor or a magnet.
  • a thread deflecting element 18 is arranged parallel to the front clamping band 7 shown in FIG. 2, which is three-dimensionally triangular-pyramid-shaped in its upper part. The attachment of this thread deflecting element 18 is rigid.
  • last needle 28 need not necessarily be the outermost needle on needle bed 3 or 4; the term "last needle” means the last knitted needle of a knitted fabric.
  • the nut 21 is moved from right to left in the illustration in FIG. 2 and placed in the storage area 20. The course of the thread at this time is shown in solid lines in FIG.
  • the thread 29 is now grasped by the thread guide hooks 11, 12 when they are fully extended and brought into the entrance area of the clamping band device 1, as can best be seen in FIG. 1.
  • the thread 29 slides over the thread deflecting element 18 and passes under the protrusion thereof into an area directly between the clamping bands 7 and 8. Since the thread feed hooks 11 and 12 pull the thread further down on the sides of the clamping band device 1, a pull is made on the Thread exercised.
  • the clamping bands 7 and 8 are subsequently started by the stepping motor, the thread 29 is therefore moved downward and is clamped between the clamping bands 7, 8.
  • the stepping motor of the clamping bands 7 and 8 is switched off again after a predetermined step length.
  • the flat knitting machine 2 adjacent to the thread guide hook 12 pulls the thread 29 reliably and safely down so far that it gets into the opened cutting device 15, which is then actuated and cuts the thread, so that the end of the knitted is free at the outer edge of the knitted, the other Thread end on the other hand is held by the clamping action of the clamping bands 7, 8.
  • the thread area between the now first needle 28 of the knitted fabric and the thread area clamped in the thread clamping device 1 is pulled down again from the thread feed hook 12 into the cutting device 15, which is now open again, and separated by actuating the same.
  • the thread part connected to the knitted fabric is now free again and the thread residue located in the thread clamping device 1 is moved downward by further movement of the thread clamping bands 7, 8 and finally falls out of the thread clamping device 1 at the lower end of the clamping area.
  • each with its own control and drive devices for clamping and releasing each thread to be clamped it must be opened and closed in the device according to the invention or in the method according to the invention, these functions are not required and therefore devices for this are not necessary.
  • the thread is first cut off after the thread guide has been "parked” and then released again in a simple manner by cutting the same thread again after knitting it into the knitted fabric. The remaining thread will sooner or later fall out of the thread clamping device. This avoids opening and closing of the clamping device, as is required in conventional devices.
  • the thread clamping device 1 according to the invention and the method according to the invention for clamping at least one thread in a textile machine were explained using the example of a flat knitting machine.
  • the thread clamping device according to the invention and the corresponding method can advantageously be used in principle in all textile machines in which thread clamping is necessary or desirable.
  • the thread clamping device according to the invention is particularly advantageous when several or even many different threads have to be clamped and / or cut off.
  • the person skilled in the art is adapting the embodiment of the thread clamping device according to the invention and the method according to the invention to the respective circumstances, Textile machines and conditions possible without thereby leaving the inventive idea.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

On obtient une structure simple et compacte pour le serrage de n'importe quel nombre de fils grâce à un dispositif serre-fils (1) qui sert à retenir au moins un fil (29, 30) dans une machine textile pourvu d'au moins une bande (7, 8) de serrage des fils (29, 30) dont le déplacement peut être commandé. Un procédé de serrage d'au moins un fil dans une machine textile permet d'obtenir une structure compacte et simple et d'effectuer n'importe quel nombre d'opérations de serrage. Selon ce procédé, un fil à serrer (29, 30) est posé dans ou sur un dispositif serre-fils (1) ayant au moins une bande (7, 8) de serrage des fils (29, 30), puis au moins une bande (7, 8) est déplacée sur une distance prédéterminée. Le dispositif serre-fil (1) peut coopérer ou être équipé avec des crochets d'amenée du fil (11, 12) et avec des dispositifs de coupe (15).

Claims (19)

  1. Dispositif de serrage de fil pour maintenir au moins un fil dans une machine textile, comprenant des moyens (11, 12) pour l'insertion respectivement la mise en place du fil (29, 30) dans le dispositif de serrage de fil et des moyens (15) pour la séparation du fil serré (29, 30), caractérisé par un dispositif à bande de serrage (1) présentant une bande de serrage (7, 8) dont le défilement est commandé, qui serre le fil (29, 30) et qui maintient le fil à serrer entre elle-même et une surface rigide.
  2. Dispositif de serrage de fil pour maintenir au moins un fil dans une machine textile, comprenant des moyens (11, 12) pour l'insertion respectivement la mise en place du fil (29, 30) dans le dispositif de serrage de fil et des moyens (15) pour la séparation du fil serré, caractérisé par un dispositif à bande de serrage (1) qui présente deux bandes de serrage (7, 8) dont le défilement est commandé et qui sont comprimées l'une contre l'autre dans la zone de serrage du fil et déplacées dans le même sens de défilement.
  3. Dispositif de serrage de fil selon la revendication 1 ou 2, caractérisé en ce que le défilement d'au moins une bande de serrage (7, 8) est commandé par un moteur pas à pas.
  4. Dispositif de serrage de fil selon l'une des revendications précédentes, caractérisé par un crochet d'amenée de fil mobile (11, 12) pour l'amenée des fils à serrer (29, 30) dans la zone de serrage du dispositif à bande de serrage (1).
  5. Dispositif de serrage de fil selon la revendication 4, caractérisé par un crochet mobile d'amenée de fil (11, 12) sur les deux faces longitudinales du dispositif à bande de serrage (1).
  6. Dispositif de serrage de fil selon la revendication 4 ou 5, caractérisé en ce que le respectivement les crochets d'amenée de fil (11, 12) est respectivement sont mobile(s) et commandé(s) par au moins un moteur pas à pas.
  7. Dispositif de serrage de fil selon les revendications précédentes, caractérisé par au moins un crochet de déviation de fil (18) pour dévier un fil sortant de la zone de serrage du dispositif à bande de serrage (1).
  8. Dispositif de serrage de fil selon la revendication 7, caractérisé en ce qu'au moins un élément de déviation de fil (18) est fixé en position.
  9. Dispositif de serrage de fil selon la revendication 7, caractérisé en ce qu'au moins un élément de déviation de fil (18) est mobile.
  10. Dispositif de serrage de fil selon l'une des revendications 7 à 9, caractérisé en ce qu'au moins un crochet d'amenée de fil (11, 12) sert à saisir le fil dévié.
  11. Dispositif de serrage de fil selon l'une des revendications précédentes, caractérisé par un dispositif de coupe de fil (15) pour la séparation du fil serré (29, 30).
  12. Utilisation du dispositif de serrage et de coupe de fil selon l'une des revendications précédentes 1 à 11, dans une machine à tricoter rectiligne (2) présentant des planches d'aiguilles (3, 4).
  13. Machine à tricoter rectiligne comprenant un dispositif de serrage et de séparation de fil selon l'une des revendications 1 à 11, caractérisée en ce que le dispositif à bande de serrage (1) est disposé sur au moins un côté de la machine à tricoter rectiligne (2), à l'extrémité latérale des planches d'aiguilles (3, 4) et dont la zone de serrage s'étend sensiblement parallèlement au dispositif de retrait du tricot.
  14. Machine à tricoter rectiligne selon la revendication 13, caractérisée en ce que le dispositif à bande de serrage (1) est disposé en dessous du plan déterminé par la zone de tricot.
  15. Machine à tricoter rectiligne selon l'une des revendications 13 à 14, caractérisée en ce que le dispositif de coupe (15) est disposé entre le dispositif à bande de serrage (1) et les planches d'aiguilles (3, 4).
  16. Machine à tricoter rectiligne selon l'une des revendications 13 à 15, caractérisée en ce que, sur la face du dispositif à bande de serrage (1), détournée des planches d'aiguilles (3, 4), il est prévu une zone de dépose (20) pour des petites noix (21 à 24) dont les fils (29, 30) sont à serrer et/ou à couper.
  17. Machine à tricoter rectiligne selon l'une des revendications 13 à 16, caractérisée en ce que, sur la face du dispositif de coupe et/ou à bande (1 respectivement 15), tournée vers les planches d'aiguilles (3, 4), il est prévu une zone de dépose (25) pour des petites noix (26, 27) dont les fils ne doivent pas être serrés et/ou coupés.
  18. Procédé pour le serrage d'au moins un fil dans une machine textile comprenant les étapes de procédé suivantes :
    a) insertion respectivement mise en place d'un fil à serrer dans un dispositif à bande de serrage, présentant au moins une bande de serrage serrant le fil, le fil à serrer étant maintenu entre la bande et une surface rigide ou une autre bande,
    b) mobilité d'au moins une bande autour d'un trajet prédéterminé.
  19. Procédé selon la revendication 18, caractérisé en ce que les étapes de procédé sont répétées pour plusieurs fils.
EP92923725A 1991-12-02 1992-11-13 Procede et dispositif de serrage de fils Expired - Lifetime EP0615560B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4139687 1991-12-02
DE4139687A DE4139687A1 (de) 1991-12-02 1991-12-02 Flachstrickmaschine
PCT/EP1992/002622 WO1993011291A1 (fr) 1991-12-02 1992-11-13 Procede et dispositif de serrage de fils

Publications (2)

Publication Number Publication Date
EP0615560A1 EP0615560A1 (fr) 1994-09-21
EP0615560B1 true EP0615560B1 (fr) 1996-06-05

Family

ID=6446080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923725A Expired - Lifetime EP0615560B1 (fr) 1991-12-02 1992-11-13 Procede et dispositif de serrage de fils

Country Status (3)

Country Link
EP (1) EP0615560B1 (fr)
DE (2) DE4139687A1 (fr)
WO (1) WO1993011291A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102776699A (zh) * 2012-08-25 2012-11-14 宁波慈星股份有限公司 横机中的导纱勾纱装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844833A1 (de) * 1998-09-30 2000-04-13 Stoll & Co H Fadenklemm- und Schneidvorrichtung für Strickmaschinen
EP1847639B1 (fr) * 2006-04-21 2009-07-01 H. Stoll GmbH & Co. KG Platine coupe fil d'une machine à tricoter à fontures rectilignes
EP1918439B1 (fr) * 2006-11-03 2011-09-21 H. Stoll GmbH & Co. KG Ensemble pour pincer et sectionner des fils avec dispositif pour attribuer et enlever les fils
WO2015123291A1 (fr) 2014-02-11 2015-08-20 The Usa, As Represented By The Secretary, Dept. Of Health And Human Services Vaccin à base de pcsk9 et méthodes d'utilisation dudit vaccin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560484A (en) * 1950-06-02 1951-07-10 Alfred Hofmann & Co Means for holding yarn ends
DE1585356A1 (de) * 1962-01-08 1969-09-18 Schubert & Salzer Maschinen Vorrichtung zum selbsttaetigen Abtrennen und Halten von Faeden an Flachkulierwirkmaschinen
CH633334A5 (fr) * 1979-09-25 1982-11-30 Steiger Atelier De Constructio Dispositif de tirage pour machine a tricoter rectiligne.
DE3626078A1 (de) * 1986-07-31 1988-02-11 Ver Beckersche Werkzeugfab Hebeluebersetzte zange fuer enge oeffnungen
DE3728656A1 (de) * 1986-12-12 1988-06-16 Mas Matias Mestre Flachstrickmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102776699A (zh) * 2012-08-25 2012-11-14 宁波慈星股份有限公司 横机中的导纱勾纱装置

Also Published As

Publication number Publication date
DE4139687A1 (de) 1993-06-03
EP0615560A1 (fr) 1994-09-21
WO1993011291A1 (fr) 1993-06-10
DE59206513D1 (de) 1996-07-11

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