EP0223422A2 - Auflösevorrichtung für ein Faserband an einer Offenend-Spinneinheit - Google Patents

Auflösevorrichtung für ein Faserband an einer Offenend-Spinneinheit Download PDF

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Publication number
EP0223422A2
EP0223422A2 EP86308130A EP86308130A EP0223422A2 EP 0223422 A2 EP0223422 A2 EP 0223422A2 EP 86308130 A EP86308130 A EP 86308130A EP 86308130 A EP86308130 A EP 86308130A EP 0223422 A2 EP0223422 A2 EP 0223422A2
Authority
EP
European Patent Office
Prior art keywords
fibre
opening unit
rotation
disc
drive
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
EP86308130A
Other languages
English (en)
French (fr)
Other versions
EP0223422A3 (en
EP0223422B1 (de
Inventor
Douglas Owen Clough
Stephen William Yates
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.)
Hollingsworth UK Ltd
Original Assignee
Hollingsworth UK Ltd
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 Hollingsworth UK Ltd filed Critical Hollingsworth UK Ltd
Priority to AT86308130T priority Critical patent/ATE48853T1/de
Publication of EP0223422A2 publication Critical patent/EP0223422A2/de
Publication of EP0223422A3 publication Critical patent/EP0223422A3/en
Application granted granted Critical
Publication of EP0223422B1 publication Critical patent/EP0223422B1/de
Expired 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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls

Definitions

  • the present invention relates to a fibre-opening unit for an open-end spinner.
  • a fibrous sliver is fed to a rapidly rotating toothed wheel, the so-called beater roll, to be opened and converted into discrete fibres which are then entrained in an airstream along a fibre feed duct towards the spinning location.
  • the airborne fibres land on the fibre-collecting groove inside the rapidly rotating rotor, and in the case of a friction spinner they land on a moving surface which imparts a rolling movement to the landing bundle of fibres to give the desired twist.
  • the present invention proposes positive braking of the sliver feed roller in order to avoid any possibility of over-run of the sliver feed roller after declutching, and to eliminate any possibility of the continuing engagement of the beater roll with the leading end or fringe of the sliver dragging the sliver forwards and entraining rotation of the feed roller.
  • the braking action is applied simultaneously with the signal to interrupt rotation of the sliver feed roller, normally in response to a signal from the yarn detector.
  • the present invention can be applied where any other form of de-activation of the sliver feed roller is used, for example de-energisation of a motor driving the feed roller of a particular spinning unit.
  • Drive to the sliver feed rollers of all the spinning units is by way of a main layshaft extending along the machine, driven by a drive source such as an electric motor.
  • a drive source such as an electric motor.
  • a set of gears one gear for each spinning unit, and in the drawing one such gear, appropriate to the particular spinning unit being illustrated, is shown at 1.
  • the layshaft gear 1 is in constant mesh with a main feed gear 2 of the particular spinning unit, and this latter gear 2 is pressed on a boss 3 which is rotatable relative to its shaft 4 by way of a journal bearing 5.
  • a clutch member 6 which is axially movable into and out of engagement with an annular friction lining 7 under the influence of clutch-operating electromagnets 8.
  • clutch-operating electromagnets 8 When the clutch member 6 moves leftwardly, drive is established with the main feed gear 2 and hence the shaft 4, on which the clutch member 6 is keyed, is driven for rotation and will in turn rotate a worm 9 in mesh with a pinion 10 driving the sliver feed roller 11.
  • a locking disc 12 is mounted on the shaft 4 so as to be non-rotatable relative thereto and the disc 12 has peripheral teeth and alternating interstices into which the lip of a leaf spring locking tooth member 13 can move when released by a solenoid 14. The opposite end of the tooth member 13 is clamped to the frame 16 of the opening unit.
  • Both the solenoid 14 and the clutch-operating magnets 8 are linked to a yarn detector, schematically illustrated at 15.
  • the beater roll (not shown) will be in constant rotation along with the beater rolls of all the other spinning units of the same machine, driven for example on a common shaft, or by a flat belt drive, extending along the full length of the machine.
  • the spring tooth member 13 will be in the solid line position shown in the drawing.
  • a yarn detector override switch (not shown) will energise the clutch-operating magnets 8 and the solenoid 14 and this will both displace the tooth member 13 into its broken line position to release the disc 12 and the shaft 4 for rotation, and at the same time initiate drive by connecting the clutch member 6 drivingly to the main feed gear 2.
  • the yarn detector override switch becomes inoperative since the detector 15 will then indicate the presence of yarn between the doffing tube and the yarn winder and drive will be maintained.
  • the yarn detector 15 will operate to de-energise the solenoid 14 and the clutch-operating magnets 8 so that simultaneously drive to the shaft 4 is interrupted and the spring tooth 13 is liberated from its broken line position to move into engagement with one of the interstices of the disc 12, to lock the shaft 4 and the worm 9 against rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Paper (AREA)
  • Centrifugal Separators (AREA)
EP86308130A 1985-11-12 1986-10-20 Auflösevorrichtung für ein Faserband an einer Offenend-Spinneinheit Expired EP0223422B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86308130T ATE48853T1 (de) 1985-11-12 1986-10-20 Aufloesevorrichtung fuer ein faserband an einer offenend-spinneinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8527829 1985-11-12
GB858527829A GB8527829D0 (en) 1985-11-12 1985-11-12 Fibre opening unit

Publications (3)

Publication Number Publication Date
EP0223422A2 true EP0223422A2 (de) 1987-05-27
EP0223422A3 EP0223422A3 (en) 1987-12-02
EP0223422B1 EP0223422B1 (de) 1989-12-20

Family

ID=10588079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86308130A Expired EP0223422B1 (de) 1985-11-12 1986-10-20 Auflösevorrichtung für ein Faserband an einer Offenend-Spinneinheit

Country Status (4)

Country Link
EP (1) EP0223422B1 (de)
AT (1) ATE48853T1 (de)
DE (1) DE3667671D1 (de)
GB (1) GB8527829D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362939A2 (de) * 2002-05-18 2003-11-19 Saurer GmbH & Co. KG Faserbandzuführeinrichtung mit speziellem Schneckenantrieb

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556017A (de) * 1967-06-01 1969-01-31
DE2115484A1 (en) * 1971-03-31 1972-10-12 Wilhelm Stahlecker Gmbh, 7341 Reichenbach Loosening roller brake - in open-end spinning unit to clamp roller on opening the housing
DE2323511A1 (de) * 1973-05-10 1974-11-28 Fritz Stahlecker Vorrichtung zum zufuehren und aufloesen eines faserbandes fuer offen-end-spinnaggregate
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
DE2548434A1 (de) * 1975-10-29 1977-05-05 Fritz Stahlecker Zufuehreinrichtung fuer ein offenend-spinnaggregat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556017A (de) * 1967-06-01 1969-01-31
DE2115484A1 (en) * 1971-03-31 1972-10-12 Wilhelm Stahlecker Gmbh, 7341 Reichenbach Loosening roller brake - in open-end spinning unit to clamp roller on opening the housing
DE2323511A1 (de) * 1973-05-10 1974-11-28 Fritz Stahlecker Vorrichtung zum zufuehren und aufloesen eines faserbandes fuer offen-end-spinnaggregate
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
DE2548434A1 (de) * 1975-10-29 1977-05-05 Fritz Stahlecker Zufuehreinrichtung fuer ein offenend-spinnaggregat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362939A2 (de) * 2002-05-18 2003-11-19 Saurer GmbH & Co. KG Faserbandzuführeinrichtung mit speziellem Schneckenantrieb
EP1362939A3 (de) * 2002-05-18 2004-03-31 Saurer GmbH & Co. KG Faserbandzuführeinrichtung mit speziellem Schneckenantrieb

Also Published As

Publication number Publication date
EP0223422A3 (en) 1987-12-02
GB8527829D0 (en) 1985-12-18
ATE48853T1 (de) 1990-01-15
DE3667671D1 (de) 1990-01-25
EP0223422B1 (de) 1989-12-20

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