EP0014864A1 - Guide-fil pour métier de filature et métier à retordre - Google Patents

Guide-fil pour métier de filature et métier à retordre Download PDF

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Publication number
EP0014864A1
EP0014864A1 EP80100421A EP80100421A EP0014864A1 EP 0014864 A1 EP0014864 A1 EP 0014864A1 EP 80100421 A EP80100421 A EP 80100421A EP 80100421 A EP80100421 A EP 80100421A EP 0014864 A1 EP0014864 A1 EP 0014864A1
Authority
EP
European Patent Office
Prior art keywords
thread
eyelet
thread guide
screw
fastening
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.)
Withdrawn
Application number
EP80100421A
Other languages
German (de)
English (en)
Inventor
Arthur Würmli
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0014864A1 publication Critical patent/EP0014864A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/12—Arrangements preventing snarls or inadvertent doubling of yarns
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/42—Guards or protectors for yarns or threads, e.g. separator plates, anti-ballooning devices
    • D01H1/425—Anti-ballooning rings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/14—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements for preparing machines for doffing of yarns, e.g. raising cops prior to removal

Definitions

  • the present invention relates to a thread guide for ring spinning and ring twisting machines, with a thread guide flap, one formed from an approximately helically wound wire, fastened by means of a screw to the thread guide flap, defining the thread balloon tip, and with a thread catcher.
  • a thread catcher is a substantially straight, cylindrical body lying in the vicinity of the thread eyelet for the thread and does not touch the thread balloon during normal operation, the function of which is to cause the thread to become abnormal under the thread guide due to excessive bulging of the balloon Immediately catch operating conditions (rotor break, too light rotor, etc.) and thus prevent it from getting caught in the threads of the adjacent, correctly running spindles and thereby causing further thread breaks (so-called row thread breaks).
  • Thread guides of the type mentioned at the outset are known (for example from CH-PS 379 981), in which the thread catcher is formed in one piece as an extension of the thread eyelet, wherein the helically wound wire, extended downwards and forwards, forms the thread catcher.
  • the thread eyelet is connected to the thread guide flap by means of a screw in such a way that centering of the thread eyelet with the spindle axis is only possible to a limited extent or only with the aid of other precautions.
  • the thread guide described has the disadvantage that the thread catcher practically comes to rest on the foremost, most exposed position of the machine, where it is often subject to mechanical damage. One is often forced to replace the damaged thread eyelet with a new one, which causes costs.
  • the thread catcher is formed from a wire which is welded to the wire of the thread eyelet behind the latter. This has the disadvantage that the production of such welded wire constructions is expensive and the weld seam tends to form disruptive flight accumulations.
  • This task is accomplished with a thread guide for ring spinning and ring twisting machines with a thread guide flap an approximately helically wound wire formed, fastened by means of a screw to the thread guide flap, defining the thread balloon tip and released with a thread catcher in that the thread catcher located under the thread eyelet consists of an extension of the fastening screw extending downward in the working position.
  • the extension runs essentially parallel to the axis of rotation of the balloon.
  • the thread eyelet has a curved end section lying in one plane, which is clamped between the thread guide flap and a nut for the fastening screw for its centering fastening in a plane perpendicular to the spindle axis.
  • This design of the thread eyelet allows the thread eyelet to be centered simply and very precisely with respect to the spindle axis with the fastening screw which simultaneously forms the thread catcher, which enables better working conditions for the spinning position and, above all, a more balanced thread tension and reduced thread breakage numbers.
  • the extension of the fastening screw consists of a cylindrical, threadless section, the diameter of which is smaller than the core diameter of the thread of the fastening screw.
  • the nut is designed as a plate with a limit lying laterally on at least one leg of the thread guide flap. This makes centering the thread eyelet to the spindle axis a very simple task, since the operator can straighten the thread eyelet with one hand and tighten the fastening screw with the other hand without having to make an effort to hold the nut.
  • end part of the thread eyelet can be U-shaped or curved in a circle.
  • FIG. 1 shows a section of a ring spinning or ring twisting machine which, for reasons of simplicity, contains only the elements which are necessary for the description of this invention.
  • a thread guide 2 is mounted per spinning station, which serves to form the tip of a thread balloon 4 (only the upper part shown) rotating around a spindle (not shown) through its thread eyelet 3.
  • the thread comes from a drawing device, not shown, in the direction of the arrow m, the rotation being given to the thread by the rotation of the thread balloon 4 in the thread section 5 lying between the drawing device and the thread eyelet 3.
  • the thread guide 2 has a thread guide flap 6 which consists of a horizontal yoke 7 and two legs 8 and 9 which are perpendicular to the yoke 7.
  • the legs 8 and 9 each have an eye 10 and 11, in which through holes for receiving the shaft 1 are provided.
  • a bore 12 is provided through which a screw 13 passes.
  • the screw 13 has an extension 13a, the position and length L of which are such that their free end 14 is at a distance x from that described by the balloon Adheres to the rotation surface.
  • the length L of the screw 13 and the distance b of the axis c of the screw 13 from the axis a of the spindle must be selected such that the distance x between the balloon rotation surface and the outermost point of the screw 13 is a minimum size in the range of 1 - 20 mm, preferably from 5 - 10 mm, must never be less. This takes into account the fact that the balloon diameter on the same spindle and from spindle to spindle can vary slightly depending on a large number of factors, of which the thread tension is the most important.
  • the screw 13 also serves to fasten the thread eyelet 3 formed from a wire, preferably round wire, to the underside of the yoke 7, which is achieved in that the fastening part 15 (FIG. 2) of the thread eyelet 3 lying in one plane (FIG. 2) between the bottom of the yoke 7 and an example trained as a plate nut 16 is clamped.
  • the screw 13 thus serves as a fastening means as well as a thread catcher and thus fulfills an advantageous double function.
  • the distance between the legs of the U-shaped fastening part 15 is larger than the diameter of the screw 13.
  • This fastening of the thread eyelet 3 in the thread guide 2 enables it to be centered in an optimal manner with respect to the spindle axis a.
  • FIG. 2 in addition to the position of the thread eyelet 3 shown in solid lines, two further layers 3a and 3b of the thread eyelet 3, shown in broken lines, are shown, for example. Thanks to the U-shaped fastening part 15, the thread eyelet 3 has a double freedom of movement around the screw 13 in a plane (not shown) lying perpendicular to the spindle axis a. This allows large differences in position between the thread guide 2 and the spindle axis a, which can easily occur in view of the total length of the machine.
  • the nut 16 which is designed as a plate, is designed with a limit lying laterally on at least one leg 8 or 9 of the thread guide flap 6 in such a way that it cannot rotate when the fastening screw 13 is tightened. In this case, the operator can tighten the screw 13 with one hand while holding or straightening the thread eyelet 3 with the other free hand.
  • the extension of the fastening screw 13 consists of a cylindrical, threadless part 20, the diameter of which is smaller than the core diameter of the thread 21 of the screw 13.
  • a smooth cylinder is also ideally suited for thread collection, provided that the distance x is selected correctly. If a thread break occurs and the thread winds up around the section 20, it is necessary that the remaining piece of thread is removed before the spinning station is put back into operation, which can be done manually by stripping the thread from the thread catcher.
  • a smooth surface of the portion 20 of the screw 13 serving as a thread catcher therefore offers great advantages since the thread remnants wound on it can be removed effortlessly.
  • the F ig. 3 and 4 show a variant of a usable in the yarn guide eyelet 2 18 which g from the yarn eyelet 3 the Fi. 1 and 2 essentially differs in that instead of a U-shaped fastening part it has a circularly curved fastening part 19, the inner diameter of the fastening part 19 being chosen larger than the diameter of the screw 13 in order to ensure that the thread eyelet 18 can be centered on the spindle axis a becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
EP80100421A 1979-02-23 1980-01-28 Guide-fil pour métier de filature et métier à retordre Withdrawn EP0014864A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH179779 1979-02-23
CH1797/79 1979-02-23

Publications (1)

Publication Number Publication Date
EP0014864A1 true EP0014864A1 (fr) 1980-09-03

Family

ID=4218822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100421A Withdrawn EP0014864A1 (fr) 1979-02-23 1980-01-28 Guide-fil pour métier de filature et métier à retordre

Country Status (3)

Country Link
US (1) US4244177A (fr)
EP (1) EP0014864A1 (fr)
IN (1) IN152887B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441523B1 (en) 1999-11-25 2002-08-27 Hitachi, Ltd. Very high permanent magnet type electric rotating machine system
CN103628249A (zh) * 2013-10-29 2014-03-12 陆粉干 纺织用低摩擦阻力线钩

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383404A (en) * 1981-08-26 1983-05-17 Milliken Research Corporation Method and apparatus to produce post heated textured yarn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191109324A (en) * 1911-04-15 1911-11-30 Edmund Brierley Improvements in Thread-guide Fittings or "Lappets" for Textile Machinery.
GB191420384A (en) * 1914-10-01 1915-07-01 John Elkington Improvements in or connected with Thread Guides for Ring Spinning Frames.
GB603556A (en) * 1945-10-24 1948-06-17 Thomas Arthur Ardern Improvements in lappets for yarn doubling and like machines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US275020A (en) * 1883-04-03 Thread-guide for spinning-machines
US413746A (en) * 1889-10-29 Kink-arrester for spinning-frames
US687981A (en) * 1901-06-03 1901-12-03 John William Cook Snarl-catcher for ring spinning and twisting machines.
US1001119A (en) * 1907-11-29 1911-08-22 Whitin Machine Works Thread-guide.
US1117596A (en) * 1913-10-22 1914-11-17 Edgar L Merrow Guide-wire for spinning-machines.
GB249253A (en) * 1925-01-13 1926-03-25 Edwin Elliott Improvements relating to thread guides for spinning, twisting and winding machinery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191109324A (en) * 1911-04-15 1911-11-30 Edmund Brierley Improvements in Thread-guide Fittings or "Lappets" for Textile Machinery.
GB191420384A (en) * 1914-10-01 1915-07-01 John Elkington Improvements in or connected with Thread Guides for Ring Spinning Frames.
GB603556A (en) * 1945-10-24 1948-06-17 Thomas Arthur Ardern Improvements in lappets for yarn doubling and like machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441523B1 (en) 1999-11-25 2002-08-27 Hitachi, Ltd. Very high permanent magnet type electric rotating machine system
CN103628249A (zh) * 2013-10-29 2014-03-12 陆粉干 纺织用低摩擦阻力线钩
CN103628249B (zh) * 2013-10-29 2016-05-18 陆粉干 纺织用低摩擦阻力线钩

Also Published As

Publication number Publication date
US4244177A (en) 1981-01-13
IN152887B (fr) 1984-04-28

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): CH DE FR GB IT

17P Request for examination filed

Effective date: 19810226

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Effective date: 19830914

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WUERMLI, ARTHUR