EP0615560A1 - Procede et dispositif de serrage de fils. - Google Patents

Procede et dispositif de serrage de fils.

Info

Publication number
EP0615560A1
EP0615560A1 EP92923725A EP92923725A EP0615560A1 EP 0615560 A1 EP0615560 A1 EP 0615560A1 EP 92923725 A EP92923725 A EP 92923725A EP 92923725 A EP92923725 A EP 92923725A EP 0615560 A1 EP0615560 A1 EP 0615560A1
Authority
EP
European Patent Office
Prior art keywords
thread
clamping
band
clamped
clamping device
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
EP92923725A
Other languages
German (de)
English (en)
Other versions
EP0615560B1 (fr
Inventor
Reinhold Universal Mas 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

Links

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

Definitions

  • the invention relates to a thread clamping device for holding at least one thread in a textile machine.
  • the invention further relates to a method for clamping at least one thread in a textile machine.
  • a thread clamping device is known in connection with a flat knitting machine from JP 22 69 848 A2.
  • a separate clamping device is provided for each thread to be clamped, each with its own control and drive device.
  • the individual clamping devices have a complicated mechanical structure. Overlying addition, the drive devices and control operations complicated 'and cumbersome because for each thread to be clamped each eranowski clamping device which has to be opened and closed, drive means and Steu ⁇ 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, structural and control expenditure, a large one To hold or clamp the number of threads in a textile machine.
  • the object is achieved according to the invention by a clamping band device with at least one band clamping the thread, the band run of which is controllable.
  • the clamping band device according to the invention is extremely simple, both in terms of the design 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. As a result, the restrictions existing in conventional thread clamping devices fall on the clamping of only a certain number of threads.
  • the band to be clamped can always be moved a certain distance when 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 for feeding the band to be clamped is provided in the clamping region of the clamping band device.
  • the movable thread feed hook is controlled in such a way that, when the thread is to be clamped, it is actuated in such a way that the thread to be clamped reaches the clamping region 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, but it is more advantageous to provide a thread supply hook on both sides 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 viewing 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 when using two thread feed hooks the two hooks move smoothly and simultaneously, 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 deflecting 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 such 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 be used in connection by way advanta- 10 * having a needle bed flat knitting machine.
  • 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 object is also achieved according to the invention by a method for clamping at least one thread in a textile machine, which has the following method steps:
  • 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 separated thread region.
  • the clamped thread area is then transported as a thread remainder by the clamping band device and falls out of the clamping band device at the end of the clamping area.
  • FIG. 1 shows an embodiment of the thread clamping device according to the invention in connection with a flat knitting machine seen from the front side and partly in a schematic sectional view and
  • Figure 2 seen the thread clamping device shown in Figure 1 in a schematic representation in the direction of the needle bed.
  • 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-off combs 6 arranged opposite one another in a roof-shaped manner.
  • the flat knitting machine is of a conventional design 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 (see 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 in such a way that the contacting outer surfaces of the clamping bands in the clamping region go down at the same speed be moved.
  • the direction of rotation of the rollers 9, 10 is indicated by arrows.
  • the rollers 9, 10 are together or each separately controlled 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 up or down via corresponding drive devices 13, 14, for example by means of a stepping motor (not shown) be moved down.
  • a thread feed hook 11 or 12 on each side next to the clamping band device 1, which hooks up or down via corresponding drive devices 13, 14, for example by means of a stepping motor (not shown) be moved down.
  • 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 scissors with cutting blades 16 and 17 is shown in a schematic representation.
  • the cutting device 15 is of a conventional type 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, the upper part of which is three-dimensionally triangular-pyramid-shaped. The attachment of this thread deflecting element 18 is rigid.
  • a storage area 20 for nuts 21, 22, 23, 24 with threads to be clamped and / or cut is provided on the side of the clamping tape device 1 or the thread feed hook 11 facing away from the needle beds 3, 4.
  • the thread guide boxes belonging to the nuts 21 to 24 are not shown for the sake of clarity.
  • 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 point in time is shown as a solid line in FIG.
  • the thread 29 is now grasped by the thread guide hooks 11, 12 when the thread guide hooks 11, 12 are fully extended and brought into the entrance area of the clamping band device 1, as can best be seen in FIG.
  • 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 becomes on the Thread exercised.
  • the clamping bands 7 and 8 are subsequently started the stepper motor, the thread 29 is therefore moved down and 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 thread guide hook 12 adjacent to the flat knitting machine 2 reliably and safely pulls the thread 29 downward enough that it reaches the opened cutting device 15, which is then actuated and cuts the thread, so that the end of the knitted fabric is free on the outer edge of the knitted fabric, 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.
  • the processes described are repeated for the respective different threads which were brought into the "park position" with the thread guides 21 to 24. While in the conventional clamping devices, each with its own control and drive devices for each thread to be clamped, the thread must be opened and closed for clamping and releasing, these functions are not necessary in the device according to the invention or in the method according to the invention and therefore devices are not necessary for this.
  • 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 back 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 necessary 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 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 are possible without thereby leaving the inventive idea.

Landscapes

  • 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).
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
DE4139687A DE4139687A1 (de) 1991-12-02 1991-12-02 Flachstrickmaschine
DE4139687 1991-12-02
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 true EP0615560A1 (fr) 1994-09-21
EP0615560B1 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
EP1847639A1 (fr) * 2006-04-21 2007-10-24 H. Stoll GmbH & Co. KG Platine coupe fil d'une machine à tricoter à fontures rectilignes

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
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
CN102776699B (zh) * 2012-08-25 2013-12-11 宁波慈星股份有限公司 横机中的导纱勾纱装置
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9311291A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847639A1 (fr) * 2006-04-21 2007-10-24 H. Stoll GmbH & Co. KG Platine coupe fil d'une machine à tricoter à fontures rectilignes

Also Published As

Publication number Publication date
EP0615560B1 (fr) 1996-06-05
DE59206513D1 (de) 1996-07-11
WO1993011291A1 (fr) 1993-06-10
DE4139687A1 (de) 1993-06-03

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