EP0247404B1 - Dispositif de réglage de la tension du fil pour machine à tricoter - Google Patents

Dispositif de réglage de la tension du fil pour machine à tricoter Download PDF

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Publication number
EP0247404B1
EP0247404B1 EP87106619A EP87106619A EP0247404B1 EP 0247404 B1 EP0247404 B1 EP 0247404B1 EP 87106619 A EP87106619 A EP 87106619A EP 87106619 A EP87106619 A EP 87106619A EP 0247404 B1 EP0247404 B1 EP 0247404B1
Authority
EP
European Patent Office
Prior art keywords
yarn
thread
tension
brake
regulating 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.)
Expired
Application number
EP87106619A
Other languages
German (de)
English (en)
Other versions
EP0247404A1 (fr
Inventor
Ernst Goller
Fritz Walker
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll 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 H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Publication of EP0247404A1 publication Critical patent/EP0247404A1/fr
Application granted granted Critical
Publication of EP0247404B1 publication Critical patent/EP0247404B1/fr
Expired 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
    • D04B15/44—Tensioning devices for individual threads
    • 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
    • D04B15/48—Thread-feeding devices
    • D04B15/482—Thread-feeding devices comprising a rotatable or stationary intermediate storage drum from which the thread is axially and intermittently pulled off; Devices which can be switched between positive feed and intermittent feed

Definitions

  • the invention relates to a thread tension regulating device for flat knitting machines for a thread guided from a thread spool via thread guiding elements, thread tensioner and thread breakage detector to the processing area of a knitting machine, with a thread tension meter and a thread brake which can be automatically adjusted depending on the display of the thread tension meter.
  • a regulating device of the type mentioned at the outset is known, for example, from EP-A 0 108 660.
  • a thread brake is adjusted in its braking effect by means of an electric motor, the motor being operated depending on the display of a thread tension meter either in one direction of rotation to increase the braking effect or in the other direction of rotation to reduce the braking effect.
  • This braking effect control is intended to ensure that the same thread lengths are always processed for the same knitted pieces, so that the same knitted dimensions can also be guaranteed.
  • the invention has for its object to provide a thread tension regulating device of the type mentioned for flat knitting machines so that it ensures a safer and more accurate readjustment of the braking force of the adjustable thread brake.
  • a thread conveying device which removes the tension imposed on the thread on its way from the thread reel to the thread brake is arranged in the thread passage direction immediately before the automatically adjustable thread brake and that between the thread brake and the in A thread tensioner known per se is arranged downstream of the thread flow direction. It is advantageous that a thread storage feeder, which is also known per se, can be provided as the thread conveying device.
  • the automatically adjustable brake can at the same time form the thread brake, which the thread tensioner upstream of the thread tension meter must have anyway, so that only thread is actually caught and not thread is pulled from the thread store during the thread winding process.
  • the thread tension regulating device according to the invention is particularly suitable for use on flat knitting machines, the automatically adjustable thread brake being assigned to the lateral thread take-up tensioner arranged in the region of a needle bed end. All parts of the thread tension regulating device that are essential to the invention, namely the thread conveying device, the thread tension meter and the automatically adjustable thread brake associated with the known thread take-up tensioner, can be arranged on a common attachment with which older flat knitting machines can also be retrofitted.
  • the response sensitivity of the regulating device can be increased significantly, even if the friction of the thread during the passage of the thread tension meter is greatly reduced, in that it is guided in the area of the thread tension meter via stationary and movably mounted thread guide rollers, which in any position moving parts of the thread tension meter keep the thread tension experienced by the thread in the thread tension meter practically constant.
  • the thread tension regulating device shown in the drawing has a common carrier 10 which can be fastened to the machine frame 11 of a flat knitting machine in the region of the end of one of the needle beds 12.
  • a thread storage feeder 13 is fastened to the carrier 10 and has, for example, a thread storage drum 14 that can be driven by an electric motor, on which a certain thread length is kept in stock in individual turns, which - continuously or at intervals - via different thread guide members 15 and at least one thread monitoring device 16 from one a bobbin 17 of the flat knitting machine arranged bobbin 18 been subtracted it.
  • the stored thread can be pulled down practically without resistance via a direction-controlling thread guide eyelet 19, where it arrives in a thread brake 20 of a thread take-up tensioner provided in a known manner with a swivel arm 21.
  • the braking effect of the thread brake 20 can be changed by means of an electric motor 22 which can be operated in both directions of rotation.
  • the thread 25 passes through a thread tension meter 24 of a suitable type on its way to a thread guide 23 and further to the unspecified work station of the flat knitting machine.
  • the thread 25 is guided over stationary thread guide rollers 26 and over at least one thread guide roller 27 which is movable under the thread tension.
  • the thread tension meter 24 supplies control signals dependent on the measured tension of the thread 25, with which the electric motor 22 of the automatically adjustable thread brake 20 is actuated either in one direction to increase the braking effect or in the other direction to reduce the braking effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (5)

1. Dispositif de réglage de la tension du fil pour des métiers à tricoter rectilignes, destiné à un fil dirigé depuis une bobine et par l'intermédiaire d'organes de guidage de fil, d'un tendeur de fil et d'un indicateur de casse de fil vers la zone de travail d'un métier à tricoter, comprenant un dispositif de mesure de la tension du fil et un frein à fil pouvant être réglé automatiquement en fonction de l'affichage du dispositif de mesure de la tension du fil, caractérisé en ce que dans le sens du déplacement du fil et directement à l'avant du frein à fil (20) à réglage automatique est disposé un dispositif délivreur de fil (13) éliminant la tension appliquée au fil (25) sur son parcours entre la bobine (18) et le frein à fil (20), et en ce qu'entre le frein à fil (20) et le dispositif de mesure de tension du fil (24) qui est disposé en aval dans le sens du déplacement du fil est monté un tendeur de rattrapage de fil (levier pivotant 21) disposé latéralement dans la région d'extrémité d'une fonture (12).
2. Dispositif de réglage de la tension d'un fil selon la revendication 1, caractérisé en ce qu'il est prévu en tant que dispositif délivreur de fil un fournisseur à magasin à fil (13).
3. Dispositif de réglage de la tension d'un fil selon la revendication 1 ou 2, caractérisé en ce que le frein à réglage automatique (20) forme simultanément le frein à fil associé habituellement au tendeur de rattrapage de fil (21).
4. Dispositif de réglage de la tension d'un fil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le fil (25) provenant du tendeur de rattrapage de fil (21) traverse le dispositif de mesure de tension de fil (24) en passant sur des galets de guidage de fil montés de façon fixe et sur des galets de guidage fil montés de façon mobile (26, 27).
5. Dispositif de réglage de la tension d'un fil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le frein à fil à réglage automatique (20) est un frein à fil pouvant être réglé par un moteur électrique mobile (22) pouvant être commandé dans les deux sens de rotation en fonction de l'affichage du dispositif de mesure de tension de fil (24).
EP87106619A 1986-05-28 1987-05-07 Dispositif de réglage de la tension du fil pour machine à tricoter Expired EP0247404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3617991 1986-05-28
DE19863617991 DE3617991A1 (de) 1986-05-28 1986-05-28 Fadenspannungs-reguliereinrichtung fuer strickmaschinen

Publications (2)

Publication Number Publication Date
EP0247404A1 EP0247404A1 (fr) 1987-12-02
EP0247404B1 true EP0247404B1 (fr) 1989-05-24

Family

ID=6301817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106619A Expired EP0247404B1 (fr) 1986-05-28 1987-05-07 Dispositif de réglage de la tension du fil pour machine à tricoter

Country Status (5)

Country Link
US (1) US4720985A (fr)
EP (1) EP0247404B1 (fr)
JP (1) JPS62282050A (fr)
DE (2) DE3617991A1 (fr)
ES (1) ES2009132B3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3641426A1 (de) * 1986-12-04 1988-06-09 Stoll & Co H Fadenfuehrungselement fuer textilmaschinen
DE4308663A1 (de) * 1993-03-18 1994-09-22 Schieber Universal Maschf Textilmaschine
DE19537215C2 (de) * 1995-10-06 1999-09-02 Memminger Iro Gmbh Fadenliefergerät für elastische Garne
DE19537325C1 (de) * 1995-10-06 1996-11-28 Memminger Iro Gmbh Fadenliefergerät mit elektronischer Ansteuerung
US6151925A (en) * 1998-01-30 2000-11-28 International Machinery Sales, Inc. Methods and systems for positively feeding yarn to circular knitting machines
JP3603031B2 (ja) * 2001-01-31 2004-12-15 株式会社島精機製作所 給糸装置
KR100955809B1 (ko) * 2002-07-24 2010-05-06 가부시키가이샤 시마세이키 세이사쿠쇼 횡편기의 급사장치
CN103668752B (zh) * 2013-12-22 2016-01-06 飞虎科技有限公司 一种具有纱线张力检测机构的电脑横机给纱装置
GR20230100159A (el) * 2023-02-23 2024-09-06 Στεφανος Γεωργιου Στεφανακης Συστημα για την επεξεργασια και πλεξη καλωδιων χαλκου

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7100143U (de) * 1971-04-08 Stoll H & Co Fadenlieferwerk fur Strickmaschinen mit hin und hergehender Schlittenbewegung
DE581859C (de) * 1930-07-16 1933-08-03 Henri Jaboulay Fadenspannvorrichtung
NL285618A (fr) * 1961-11-17
DE1215855B (de) * 1962-01-10 1966-05-05 Monsanto Co Selbsttaetig arbeitende Fadenspannvorrichtung fuer Strick- und Wirkmaschinen
CH476879A (de) * 1967-06-09 1969-08-15 Fouquet Werk Frauz & Planck Verfahren und Vorrichtung zur Lieferung des Fadens bei Rundstrick- oder Rundwirkmaschinen
DE1635872A1 (de) * 1967-09-26 1974-08-01 Morat Gmbh Franz Fadenfuehrung an rundstrickmaschinen, insbesondere an mehrsystemigen rundraenderstrickmaschinen
DE2128476C2 (de) * 1971-06-08 1975-01-09 Karl Isac Joel Ulricehamn Rosen (Schweden) Fadenzuführ- und Überwachungseinrichtung
JPS5146225B2 (fr) * 1971-11-26 1976-12-08
JPS4920467A (fr) * 1972-06-27 1974-02-22
JPS511751A (en) * 1974-06-28 1976-01-08 Howa Sangyo Kk Yokoamikiniokeru itochoryokuanteikasochi
US4523440A (en) * 1982-10-08 1985-06-18 Institut Textile De France Regulating device for the length of thread absorbed by a knitting machine
DE3316078A1 (de) * 1983-05-03 1984-11-08 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Fadenzufuhreinrichtung fuer strick- und wirkmaschinen
FR2566521B1 (fr) * 1984-06-26 1987-01-02 Inst Textile De France Dispositif perfectionne pour la mesure de la longueur de fil absorbee par une machine textile
DE3437251A1 (de) * 1984-10-11 1986-04-24 Gustav 7290 Freudenstadt Memminger Fadenbremse, insbesondere fuer textilmaschinen

Also Published As

Publication number Publication date
ES2009132B3 (es) 1989-09-01
EP0247404A1 (fr) 1987-12-02
DE3617991A1 (de) 1987-12-03
US4720985A (en) 1988-01-26
DE3760179D1 (en) 1989-06-29
JPS62282050A (ja) 1987-12-07

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