WO2001071078A2 - Appareil d'alimentation en fil pour machine a tricoter ou metier a tricoter ou machine de production de fil et machine a tricoter ou metier a tricoter - Google Patents

Appareil d'alimentation en fil pour machine a tricoter ou metier a tricoter ou machine de production de fil et machine a tricoter ou metier a tricoter Download PDF

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Publication number
WO2001071078A2
WO2001071078A2 PCT/DE2001/000970 DE0100970W WO0171078A2 WO 2001071078 A2 WO2001071078 A2 WO 2001071078A2 DE 0100970 W DE0100970 W DE 0100970W WO 0171078 A2 WO0171078 A2 WO 0171078A2
Authority
WO
WIPO (PCT)
Prior art keywords
thread
wheel
knitting
guide
delivery device
Prior art date
Application number
PCT/DE2001/000970
Other languages
German (de)
English (en)
Other versions
WO2001071078A3 (fr
Inventor
Helmut Schmid
Original Assignee
Memminger-Iro 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 Memminger-Iro Gmbh filed Critical Memminger-Iro Gmbh
Priority to AU2001246379A priority Critical patent/AU2001246379A1/en
Publication of WO2001071078A2 publication Critical patent/WO2001071078A2/fr
Publication of WO2001071078A3 publication Critical patent/WO2001071078A3/fr

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
    • D04B15/48—Thread-feeding devices

Definitions

  • the invention relates to a yarn delivery device for a knitting or knitting machine or yarn production machine according to the preamble of claim 1 and a knitting or knitting machine.
  • Thread delivery devices which are in particular thread tension controlled, are used on a variety of knitting and warp knitting machines.
  • Thread delivery devices which are in particular thread tension controlled, are used on a variety of knitting and warp knitting machines.
  • the processing of elastic and inelastic materials with thread tension-controlled thread delivery devices is largely problem-free.
  • the thread speed varies.
  • the thread take-off at a tension sensor for a thread tension-controlled one Thread delivery device changes irregularly. If elastic materials are used, even sudden changes in the thread speed are sufficiently well regulated with regard to a constant thread tension. However, the more inelastic the material to be processed is, the more difficult it is to adjust the desired constant thread tension.
  • the controller only reacts insufficiently to a rapidly increasing thread consumption, which means that the thread tension can rise so far that the thread breaks.
  • the invention has for its object to expand the range of uses of a particularly tension-controlled yarn delivery device in such a way that even for high production speeds, a variety of materials can be used for the manufacture of goods in which a change in the thread consumption in a stitch row takes place due to a desired fabric structure.
  • the invention relates to a thread delivery device: for a knitting or knitting machine or yarn production machine a thread wheel, over which a delivered thread runs with one or more turns and the speed of which determines the speed of the thread with slip-free guidance, the thread delivery device in particular comprising a sensor unit for measuring and an electronic unit for regulating the thread tension, in which the Thread tension is regulated by changing the rotational speed of the thread wheel to a predetermined value.
  • the essence of the invention is that means for separately guiding at least one turn on the thread wheel are provided. As a result of this measure, at least one thread turn runs freely on the thread wheel, ie separately from an adjacent thread path.
  • the means for separate guiding comprise one or more recesses which are formed on the circumference of the thread wheel and through which a guiding for at least one thread winding section is created.
  • the circumference of the thread wheel is designed as a surface, at least one depression in the form of a guide groove is proposed.
  • notch-like depressions in the ribs or wires are advantageous, which form on the circumference of the Thread wheel are distributed so that a guide for at least one thread winding section is provided.
  • the one or more wells e.g. a guide groove, running helically on the thread wheel circumference.
  • the one or more recesses has at least two guide planes for the thread, e.g. in the form of guide grooves or the notches described above in a rib or a wire, which can also have different diameters in the groove or groove base.
  • this presupposes that a thread receives additional guidance when changing from one management level to another, possibly by means of guidance described below.
  • depressions in particular in the form of grooves, prevents the windings of the winding from moving in the axial direction on the thread wheel, e.g. Carry out an oscillating movement and, if necessary, touch it, which can result in undesirable thread friction.
  • this additional guide comprises at least one guide element arranged on the circumference of the thread wheel, via which the thread is positively guided while being lifted off the thread wheel.
  • One or more thread guide hooks or thread guide combs can be used as guide elements on the circumference of the thread wheel.
  • the aim in the arrangement of the thread guide hooks or the thread guide combs is to produce a winding thread path around the thread wheel, in which at least one turn runs freely without thread contact to adjacent thread sections of the thread winding.
  • the complete winding on the thread wheel is preferably separated in this way.
  • attaching guide elements is particularly effective if the guide elements are arranged on the circumference of the thread wheel in the area in which the thread is fed to the thread wheel and in which the thread is removed from the thread wheel.
  • an arrangement of one or more guide elements on the opposite circumferential region of the thread wheel, e.g. the arrangement of a guide element is proposed for two turns.
  • the arrangement of the guide elements should preferably be carried out as follows:
  • the thread of each turn should be guided at least over a first guide element, with at least one turn on two adjacent turns having an additional guide element that runs along the Circumference of the thread wheel from the first guide element of an adjacent turn, preferably positioned in an opposite area. This measure ensures a safe separation of the turns even with a constantly changing thread tension.
  • Fig. Lb the thread delivery device according to Figure la in a partial view from the side and
  • Fig. 2 shows a section of a second
  • Thread delivery device with a grooved thread wheel in a side view.
  • the thread delivery device 1 according to FIGS. La and b comprises a housing 2, on which a motor-driven thread wheel 3 is arranged.
  • a thread 4 initially runs through an input eyelet 5, is wound twice around the thread wheel 3, passed on via a sensor 5 for measuring the thread tension, and leaves the thread delivery device an exit eyelet 7 "
  • the thread delivery device has a thread tension of 1.7 g specified.
  • the tension sensor 6 measures the thread tension and accelerates or brakes the thread wheel down, depending on whether the thread tension is too large or too small.
  • the thread tension of the thread at the output eyelet 7 should be kept as constant as possible at the desired value.
  • the invention offers the possibility that the thread can slip through the thread wheel if the tension increases too much, as a result of which the thread tension peak is reduced due to an increased thread decrease and thread breakage can be avoided.
  • thread hooks 8, 9, 10 positioned on the circumference of the thread wheel 3, over which the thread 4 is guided.
  • the two turns on the thread wheel 3 are separated from one another by the positive guidance by means of the thread hooks 8, 9, 10.
  • the hooks 8, 9, 10 are arranged in a direction parallel to the thread wheel axis 11 at different height positions, so that a thread 4 guided over it runs in a helical shape.
  • the height position of the input eyelet 5 and the output eyelet 7 is also matched to the thread guide a ⁇ : thread thread.
  • the thread delivery device 1 can thus be used, for example, in the production of a knitted or knitted fabric from little to inelastic material, in which the thread consumption often varies in a stitch row due to a predetermined fabric structure.
  • the guide hooks 9, 10 are arranged in the feed region of the thread on the circumference of the thread wheel, whereas the thread hook 8 is positioned diametrically opposite in one region.
  • the thread 4 fed to the thread wheel runs after the input eyelet 5 first on the thread wheel, is placed approximately opposite to the first point of contact of the thread with the thread wheel on the thread hook 8, via the thread hook 10, which is in turn arranged approximately diametrically on the circumference, and again after approximately one turn shortly before leaving the thread wheel over the thread hook 9 positively guided.
  • the thread section 9 fixes the thread section coming from the thread wheel in a position parallel to the thread wheel plane. For the thread section fed to the thread wheel, this task is performed by the thread hook 8 and partly by the subsequent thread hook 10.
  • the thread has essentially the same direction when entering and leaving the thread delivery device.
  • the arrangement of the thread hooks 8, 9, 10 should be chosen such that at least one turn on two adjacent turns does not extend over a larger area than half the circumference of the thread wheel without an additional guide means, here guide hooks. It can thereby be avoided that a thread winding section changes its position along the circumference in the axial direction of the thread wheel to such an extent that contact with a thread winding section running in parallel occurs.
  • a separation of the individual turns of the thread wrap on Thread wheel 3 is further improved if, according to FIG. 2, three guide grooves 21, 22, 23 are formed on a thread wheel 20.
  • the guide grooves 21, 22, 23 each run, for example, in one plane, the planes being aligned parallel to one another and perpendicular to a thread wheel axis 20. In such a groove arrangement, a transition of the thread from one guide groove to the next must be ensured by guide hooks 24, 25.
  • the application spectrum of a thread delivery device is significantly improved by the invention in a comparatively simple and inexpensive manner, in particular with regard to a more rational production.

Landscapes

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

Abstract

La présente invention concerne un appareil d'alimentation en fil pour machine à tricoter ou métier à tricoter ou machine de production de fil, qui comprend une roue à fil (3, 20). Un fil distribué (4) circule enroulé sur cette roue, formant un ou plusieurs enroulements. La vitesse de rotation de ladite roue détermine la vitesse du fil (4), lorsque le guidage est réalisé sans glissement. Cette invention prévoit des systèmes qui permettent le guidage séparé d'au moins un enroulement se trouvant sur la roue à fil (4). En outre, cette invention concerne une machine à tricoter ou un métier à tricoter qui met en oeuvre ledit appareil d'alimentation en fil.
PCT/DE2001/000970 2000-03-20 2001-03-15 Appareil d'alimentation en fil pour machine a tricoter ou metier a tricoter ou machine de production de fil et machine a tricoter ou metier a tricoter WO2001071078A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001246379A AU2001246379A1 (en) 2000-03-20 2001-03-15 Thread feeding device for a knitting machine or a knitting frame or a yarn production machine and a knitting machine or a knitting frame

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10013522 2000-03-20
DE10013522.6 2000-03-20

Publications (2)

Publication Number Publication Date
WO2001071078A2 true WO2001071078A2 (fr) 2001-09-27
WO2001071078A3 WO2001071078A3 (fr) 2002-03-28

Family

ID=7635458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000970 WO2001071078A2 (fr) 2000-03-20 2001-03-15 Appareil d'alimentation en fil pour machine a tricoter ou metier a tricoter ou machine de production de fil et machine a tricoter ou metier a tricoter

Country Status (3)

Country Link
AU (1) AU2001246379A1 (fr)
DE (1) DE10112504A1 (fr)
WO (1) WO2001071078A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696158A (zh) * 2013-12-30 2014-04-02 吴江市菀坪铭正缝纫机零件厂 一种缝纫机机台引线装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH289657A (fr) * 1949-06-02 1953-03-31 Lebocey Machines Machine de bonneterie munie d'un dispositif autorégulateur pour la délivrance du fil d'alimentation.
FR1366959A (fr) * 1963-06-07 1964-07-17 L Devanlay Et Recoing Ets Perfectionnement aux fournisseurs de fil utilisés en particulier pour l'alimentation des métiers de bonneterie
US3575018A (en) * 1969-02-25 1971-04-13 Nathan Levin Yarn-feeding means for knitting machines
FR2114703A5 (fr) * 1970-11-16 1972-06-30 Redeco Sa
DE3506552A1 (de) * 1984-03-06 1985-09-12 Precision Fukuhara Works Ltd., Kobe, Hyogo Garnzufuhrvorrichtung fuer die zwangslaeufige garnzufuhr zu einer strickmaschine
EP0779386A1 (fr) * 1995-12-12 1997-06-18 Terrot Strickmaschinen GmbH Dispositif d'alimentation en fil
EP0876986A1 (fr) * 1996-01-23 1998-11-11 Nitta Corporation Mecanisme tendeur pour corde ou similaire

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH289657A (fr) * 1949-06-02 1953-03-31 Lebocey Machines Machine de bonneterie munie d'un dispositif autorégulateur pour la délivrance du fil d'alimentation.
FR1366959A (fr) * 1963-06-07 1964-07-17 L Devanlay Et Recoing Ets Perfectionnement aux fournisseurs de fil utilisés en particulier pour l'alimentation des métiers de bonneterie
US3575018A (en) * 1969-02-25 1971-04-13 Nathan Levin Yarn-feeding means for knitting machines
FR2114703A5 (fr) * 1970-11-16 1972-06-30 Redeco Sa
DE3506552A1 (de) * 1984-03-06 1985-09-12 Precision Fukuhara Works Ltd., Kobe, Hyogo Garnzufuhrvorrichtung fuer die zwangslaeufige garnzufuhr zu einer strickmaschine
EP0779386A1 (fr) * 1995-12-12 1997-06-18 Terrot Strickmaschinen GmbH Dispositif d'alimentation en fil
EP0876986A1 (fr) * 1996-01-23 1998-11-11 Nitta Corporation Mecanisme tendeur pour corde ou similaire

Also Published As

Publication number Publication date
WO2001071078A3 (fr) 2002-03-28
AU2001246379A1 (en) 2001-10-03
DE10112504A1 (de) 2001-09-27

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