EP0532922A1 - Dispositif fournisseur de fil - Google Patents

Dispositif fournisseur de fil Download PDF

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Publication number
EP0532922A1
EP0532922A1 EP92114043A EP92114043A EP0532922A1 EP 0532922 A1 EP0532922 A1 EP 0532922A1 EP 92114043 A EP92114043 A EP 92114043A EP 92114043 A EP92114043 A EP 92114043A EP 0532922 A1 EP0532922 A1 EP 0532922A1
Authority
EP
European Patent Office
Prior art keywords
thread
delivery device
swivel arm
friction
friction roller
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
EP92114043A
Other languages
German (de)
English (en)
Other versions
EP0532922B1 (fr
Inventor
Franz Schmid
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 EP0532922A1 publication Critical patent/EP0532922A1/fr
Application granted granted Critical
Publication of EP0532922B1 publication Critical patent/EP0532922B1/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
    • D04B15/48—Thread-feeding devices
    • D04B15/52—Thread-feeding devices for straight-bar knitting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/12—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements in spaced relation to provide a series of independent forwarding surfaces around which material is passed or wound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a thread delivery device with at least one driven friction roller, the peripheral speed of which is higher than the thread take-off speed, and with at least one deflection roller mounted on a swivel arm, via which the thread is derived from the friction roller and the position of which determines the wrap angle of the thread around the friction roller .
  • the swivel arm with the deflection roller is mounted coaxially with the friction roller (EP-OS 387 546, FR-PS 20 71 546).
  • This mounting of the swivel arm with the deflection roller has the disadvantage that the range of change of the wrap angle is limited and the guidance of several threads over a friction roller is hindered.
  • the invention is therefore based on the object of designing a thread delivery device of the type mentioned at the outset in such a way that it also enables guidance and individual control of a plurality of threads over a very wide wrap angle range.
  • the pivot arm carrying the deflection roller is curved, has a length that is greater than the diameter of the friction roller, and its axis extends outside the friction roller.
  • the swivel arm can advantageously have two thread deflecting rollers which are arranged with a parallel axis and at a distance.
  • any number of swivel arms for guiding separate threads can be arranged over a correspondingly wide, identical friction roller.
  • the thread delivery device can also have two friction rollers running parallel to one another at a distance, with each thread guided over both friction rollers being assigned at least one thread guide element arranged on a swivel arm on each friction roller, and the thread guide elements being all pivotable into the distance between the two friction rollers.
  • each of several threads can be individually influenced in terms of its feed rate, and wrap angles can be set on the friction rollers, which can range from 0 ° (lifting the thread from the friction roller) to over 270 °.
  • the swivel arms of the thread delivery device according to the invention can be arranged on a common axis running outside an associated friction roller, so that they can also be coupled together for a common adjustment if necessary.
  • the associated friction roller can advantageously be designed as a continuous long roller with a stepped surface, so that after a thread break forming thread winding of each of the driven threads can be pushed over a free end of the friction roller after pivoting of the neighboring threads.
  • a thread delivery device designed according to the invention is particularly suitable for textile machines, for example flat knitting machines, with an automatic regulation of the thread feed, the tension of the individual threads being measured and an adjustment motor assigned to each individual swivel arm and acting on it being driven depending on the measured thread tension.
  • end stops can expediently be provided, which limit its swivel range as a whole, with an infinitely adjustable intermediate stop being arranged within the maximum wrap range defined by the end stops, with which a swivel angle determined as favorable can be determined such that a swivel arm after one temporary pivoting can be pivoted back into this convenient position.
  • the thread guiding device shown has a flat and essentially circular-cylindrical housing 10, in which two friction rollers 11 and 12 projecting over the one end face of the housing 10 and running parallel to one another at a distance are overhung.
  • an electric motor 13 is flanged, which drives the two friction rollers 11 and 12 at a circumferential speed that is greater than a desired thread take-off speed via a gear (not shown) housed in the housing 10.
  • a rod 14 is fastened in the housing 10, on each of which several of two types of pivot arms 15 and 16 are alternately supported in succession.
  • the swivel arms 15 are the friction roller 12 and the swivel arms 16 are assigned to the friction roller 11.
  • the swivel arms 15 and 16 are substantially longer than the diameter of the friction rollers 11 and 12 and curved so that they seen from their support rod 14 in the existing space between the two friction rollers 11 and 12 through the common imaginary connection plane of the axes 11.1 and 12.1 of the two friction rollers 11 can be pivoted through without touching the friction rollers 11, 12.
  • Each swivel arm 15, 16 carries at its free end two deflection rollers 15/1, 15/2 or 16/1, 16/2 which are mounted parallel to one another and freely rotatable at a distance.
  • the plurality of threads to be driven are first fed to the friction roller 11 via a thread guide rail 18 which is shown in FIG. 2 and is provided with thread guide eyelets 17. For reasons of clarity, only a single thread 20 is shown in the drawing. 1, the thread passes through a thread guide eyelet 17 of the thread guide rail onto the friction roller 11. Its wrap angle around the friction roller 11 is determined by the deflection roller 16/2 of a swivel arm 16, through which the thread is derived from the friction roller 11 and passed to the friction roller 12 becomes.
  • the wrap angle alpha 2 of the thread 20 around the friction roller 12 is determined by the deflecting roller 15/2 of a swivel arm 15 adjacent to the swivel arm 16, through which the thread is lifted from the friction roller 12 and passed again to the friction roller 11.
  • the thread 20 is finally discharged downward from the friction roller 11 to a thread guide member, not shown.
  • both pivot arms 15 and 16 are also shown with dash-dotted lines in a second pivot position, in which they each give the thread 20 'also drawn for this position a smaller wrap angle betta 1 and betta 2 around the friction rollers 11 and 12.
  • the thread 20 ' is guided over the deflection rollers 15/1 and 16/1.
  • the swivel arms 15 and 16 can be adjusted by hand using a handle pin 19 indicated in FIG. 1.
  • This grip pin can be assigned to an intermediate stop, not shown, which is infinitely adjustable between end stops and with which a swivel arm setting can be fixed.
  • the end stops can be determined, for example, by the ends of guide slots 21, one of which is also indicated in FIG. 2.
  • each of the swivel arms 15 and 16 is assigned an adjusting motor 22 which engages the swivel arms 15 or 16 on a second arm, here on an arm 16/3 of a swivel arm 16.
  • Each thread is passed in the direction of travel behind the thread delivery device via a thread tension meter 23, which supplies a control signal to a control circuit 24, from which the individual adjustment motors 22 receive their adjustment signals, for example adjustment pulses.
  • the drive motors can have any suitable structure. All swivel arms 15 and / or all swivel arms 16 can also have a thru-axle, not shown, for which the swivel arms have a through opening 25. are positively coupled to one another so that all swivel arms 15 or 16 can be adjusted together, for example by means of a single drive motor 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Knitting Machines (AREA)
EP92114043A 1991-09-20 1992-08-18 Dispositif fournisseur de fil Expired - Lifetime EP0532922B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131322A DE4131322A1 (de) 1991-09-20 1991-09-20 Fadenliefervorrichtung
DE4131322 1991-09-20

Publications (2)

Publication Number Publication Date
EP0532922A1 true EP0532922A1 (fr) 1993-03-24
EP0532922B1 EP0532922B1 (fr) 1996-04-17

Family

ID=6441069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92114043A Expired - Lifetime EP0532922B1 (fr) 1991-09-20 1992-08-18 Dispositif fournisseur de fil

Country Status (5)

Country Link
US (1) US5320294A (fr)
EP (1) EP0532922B1 (fr)
JP (1) JP2509133B2 (fr)
DE (2) DE4131322A1 (fr)
ES (1) ES2087370T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018108989A1 (fr) * 2016-12-16 2018-06-21 Sipra Bobine débitrice de fil à friction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107964728B (zh) * 2018-01-12 2024-03-19 泰山玻璃纤维有限公司 一种经编织物的纺织装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484053A (fr) *
GB951728A (en) * 1962-03-10 1964-03-11 Spinner Oy Thread-feeding device
FR2071546A5 (en) * 1969-12-31 1971-09-17 Verdol Mecaniques Yarn tensioner - for yarn let-off mechanism feeding ring spinner
EP0387546A1 (fr) * 1989-03-11 1990-09-19 SOBREVIN Société de brevets industriels-Etablissement Dispositif de délivrance de fil à friction

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE481678A (fr) * 1947-04-14
US2641913A (en) * 1947-04-15 1953-06-16 Poron Ets Yarn feeding method and apparatus for knitting machines
US3831873A (en) * 1970-05-26 1974-08-27 Leesona Corp Take-up system
CS158783B1 (fr) * 1972-02-14 1974-12-27
DE2245869A1 (de) * 1972-09-19 1974-03-28 Karl Bous Verfahren und vorrichtung zum liefern und spannen von garnen mit einstellbarer, konstant bleibender fadenspannung
JPS5424218U (fr) * 1977-07-20 1979-02-17
JPS60188272A (ja) * 1984-03-06 1985-09-25 Fukuhara Seiki Seisakusho:Kk 編機における積極型の糸送り装置
DE3416195A1 (de) * 1984-05-02 1985-11-14 Gustav 7290 Freudenstadt Memminger Fadenliefervorrichtung fuer fadenverarbeitende textilmaschinen, bspw. rundstrick- oder -wirkmaschinen
JPS60248572A (ja) * 1984-05-22 1985-12-09 Toyoda Autom Loom Works Ltd 精紡機の巻取張力補正装置
DE3732102C1 (de) * 1987-09-24 1989-05-03 Gustav Memminger Fadenliefervorrichtung fuer Textilmaschinen mit zeitlich unterschiedlichem Fadenverbrauch,insbesondere Strick- und Wirkmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484053A (fr) *
GB951728A (en) * 1962-03-10 1964-03-11 Spinner Oy Thread-feeding device
FR2071546A5 (en) * 1969-12-31 1971-09-17 Verdol Mecaniques Yarn tensioner - for yarn let-off mechanism feeding ring spinner
EP0387546A1 (fr) * 1989-03-11 1990-09-19 SOBREVIN Société de brevets industriels-Etablissement Dispositif de délivrance de fil à friction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018108989A1 (fr) * 2016-12-16 2018-06-21 Sipra Bobine débitrice de fil à friction

Also Published As

Publication number Publication date
ES2087370T3 (es) 1996-07-16
JPH05214647A (ja) 1993-08-24
DE4131322A1 (de) 1993-03-25
JP2509133B2 (ja) 1996-06-19
DE59206014D1 (de) 1996-05-23
US5320294A (en) 1994-06-14
EP0532922B1 (fr) 1996-04-17

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