EP0493340A1 - A device for manipulating an end of a sliver of textile fibres - Google Patents

A device for manipulating an end of a sliver of textile fibres Download PDF

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Publication number
EP0493340A1
EP0493340A1 EP91830562A EP91830562A EP0493340A1 EP 0493340 A1 EP0493340 A1 EP 0493340A1 EP 91830562 A EP91830562 A EP 91830562A EP 91830562 A EP91830562 A EP 91830562A EP 0493340 A1 EP0493340 A1 EP 0493340A1
Authority
EP
European Patent Office
Prior art keywords
gripper
sliver
arm
arms
base plate
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Withdrawn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
EP91830562A
Other languages
German (de)
English (en)
French (fr)
Inventor
Augusto Vedani
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.)
SANT'ANDREA NOVARA SpA
Original Assignee
SANT'ANDREA NOVARA SpA
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 SANT'ANDREA NOVARA SpA filed Critical SANT'ANDREA NOVARA SpA
Publication of EP0493340A1 publication Critical patent/EP0493340A1/en
Withdrawn legal-status Critical Current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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/005—Arrangements for feeding or conveying the slivers to the drafting machine

Definitions

  • the present invention relates to a device for manipulating an end of a sliver of textile fibres.
  • the device according to the present invention has been developed particularly for manipulating a sliver in continuously-operating drawing equipment which is the subject of a copending patent application by the present Applicant.
  • the object of the present invention is to provide a device which can automatically break a sliver and transfer an end of the sliver to an entrainment device.
  • this object is achieved by the provision of a device which includes:
  • a device for breaking a sliver 2 of textile fibres and transferring an end of the sliver to an entrainment device, not shown.
  • the sliver 2 which comes from a portion of the equipment which is not shown, extends over a horizontal base plate 4 and is collected in a container 6.
  • a first gripper 8 constituted by a pair of arms 10, 11 articulated about respective parallel, horizontal axes 12.
  • An actuator 13 pivots the arms 10, 11 about their respective axes 12.
  • a third arm 14 is connected to the arm 10 by a bridge element 16.
  • the base plate 4 has a pair of parallel slots 18, 20 in which end portions of the arms 10, 11 and 14 extend.
  • a second gripper, indicated 22, is constituted by a pair of jaws 24, 26, each of which has a pair of parallel arms arranged in a fork-like configuration.
  • the gripper 22 is carried by a slide 28 which is slidable on a vertical guide upright 30 and is movable between an inoperative, raised position shown in Figures 1 and 2 and an operative, lowered position, shown in Figure 3.
  • the means which cause the slide 28 to slide along the upright 30 are not shown in the drawings since they could be constituted by any known movement system such as, for example, a motor-driven chain.
  • the jaw 24 is fixed relative to the slide 28 but the jaw 26 is articulated about an axis 32 and is pivoted about that axis by a fluid actuator 34 carried by the slide 28.
  • a third gripper, indicated 36, is constituted by a pair of plates 38 which are carried by respective supports 40 and are movable relative to each other like shears.
  • the gripper 36 is carried by an arm 42 which is pivotable about a vertical axis 44 on a slide 46.
  • the slide 46 is slidable along a fixed guide beam 48.
  • the sliver 2 extends over the base plate 4 between the arms 10, 11 of the first gripper 8.
  • the first gripper 8 is closed and grips the sliver 2 as shown in Figure 2.
  • the second gripper 22 is then brought to its operative position shown in Figure 3. In this position, the arms of the first jaw 24 extend between the arms 10, 14 of the first gripper 8 and are above the sliver 2. The arms of the second jaw 26, however, are inserted in the slots 18, 20 in the base plate 4. At this point, the actuator 34 is activated and partially closes the second gripper which grips the portion of the sliver which is between the arms 10 and 14 of the first gripper 8. The second gripper 22 is then raised and, during this movement, the first gripper 8 is kept closed whilst the sliver slides between the jaws 24 and 26 until a programmed level is reached, when the jaws close completely, tearing the sliver.
  • the sliver is thus torn in a region between the programmed level and the first gripper 8.
  • the shape of the gripper 22 enables the portion 2a of the sliver between the two pairs of arms of the jaws 24 and 26 to be kept taught.
  • the arm 42 is then pivoted about its axis 44 so as to bring the plates 38 of the third gripper 36 between the fork-shaped arms of the second gripper 22 ( Figure 5).
  • the third gripper 36 is then closed so as to grip the end of the sliver 2 and the second gripper 22 is then opened.
  • the arm 42 pivots again so as to return to the configuration shown in Figures 1 to 4 whilst the third gripper 36 remains closed; the slide 46 is then moved so as to bring the end of the sliver 2 near to an entrainment device to which the end of the sliver which is held by the third gripper 36 is supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP91830562A 1990-12-21 1991-12-17 A device for manipulating an end of a sliver of textile fibres Withdrawn EP0493340A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT68050A IT1241448B (it) 1990-12-21 1990-12-21 Dispositivo per la manipolazione di un capo di un nastro di fibre tessili.
IT6805090 1990-12-21

Publications (1)

Publication Number Publication Date
EP0493340A1 true EP0493340A1 (en) 1992-07-01

Family

ID=11307475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830562A Withdrawn EP0493340A1 (en) 1990-12-21 1991-12-17 A device for manipulating an end of a sliver of textile fibres

Country Status (2)

Country Link
EP (1) EP0493340A1 (it)
IT (1) IT1241448B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414901A (en) * 1992-10-08 1995-05-16 Elitex Usti Nad Orlici S.P. Device for severing the sliver in a filling station of a textile machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017773A (en) * 1978-03-30 1979-10-10 Bulla B Apparatus for feeding fibre slivers to textile machines
EP0348678A1 (en) * 1988-06-29 1990-01-03 SCAGLIA S.p.A. Method to engage and insert sliver into free fibre spinning units and device which employs the method
EP0361306A1 (en) * 1988-09-21 1990-04-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Automatic sliver piecing in textile machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017773A (en) * 1978-03-30 1979-10-10 Bulla B Apparatus for feeding fibre slivers to textile machines
EP0348678A1 (en) * 1988-06-29 1990-01-03 SCAGLIA S.p.A. Method to engage and insert sliver into free fibre spinning units and device which employs the method
EP0361306A1 (en) * 1988-09-21 1990-04-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Automatic sliver piecing in textile machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414901A (en) * 1992-10-08 1995-05-16 Elitex Usti Nad Orlici S.P. Device for severing the sliver in a filling station of a textile machine

Also Published As

Publication number Publication date
IT9068050A1 (it) 1992-06-22
IT1241448B (it) 1994-01-17
IT9068050A0 (it) 1990-12-21

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