EP0160561A2 - Vorrichtung zum Weiterführen von gekräuselten Fadenkabeln - Google Patents

Vorrichtung zum Weiterführen von gekräuselten Fadenkabeln Download PDF

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Publication number
EP0160561A2
EP0160561A2 EP85303023A EP85303023A EP0160561A2 EP 0160561 A2 EP0160561 A2 EP 0160561A2 EP 85303023 A EP85303023 A EP 85303023A EP 85303023 A EP85303023 A EP 85303023A EP 0160561 A2 EP0160561 A2 EP 0160561A2
Authority
EP
European Patent Office
Prior art keywords
crimper
tow
outlet end
perforations
vacuum
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Withdrawn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
EP85303023A
Other languages
English (en)
French (fr)
Inventor
Gary Franklin Nunn
Thomas Herbert Watson
James Lamar Woodley, Jr.
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0160561A2 publication Critical patent/EP0160561A2/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D02G1/205—After-treatments for fixing crimp or curl

Definitions

  • This invention relates to an apparatus for conveying crimped tow, and more particularly it relates to an apparatus for vertically conveying a crimped tow without changing the geometry of the crimped tow as imparted in the crimper.
  • the present invention provides an apparatus for carrying crimped tow away from the crimper to a conveyor without changing tow geometry as it was in the crimper, in other words, without a substantial loss of crimp as imparted to the tow in the crimper.
  • the apparatus comprises an unenclosed, fixed, smoothly contoured, curved, perforated surface sloping gradually downward away from the outlet end of the crimper to substantially meet and terminate at the conveyor.
  • the curved surface is tangent to and slopes away from the outlet end of the crimper radially and is coupled with a means to apply a level of vacuum to the perforations in the surface.
  • the drawing is a schematic isometric view of apparatus suitable for carrying out the invention.
  • the embodiment chosen for purposes of illustration shows that an uncrimped synthetic fiber multifilament tow 10, usually supplied from a draw machine, is passed through a pair of crimper rolls 12 which force the tow under pressure into the crimping-stuffing-box 14. Pressure in the stuffing-box is adjusted by the tension on the crimper gate 16. From the stuffing-box the crimped tow 10' passes to chute 18 which directs the crimped tow to a conveyor belt 30.
  • the chute 18 is unenclosed and comprises a smoothly curved bottom surface 20 having perforations 22 throughout its length. The perforations ideally extend to within one inch (25.4 mm) of the outlet end of the stuffing-box 14. In a preferred embodiment the perforations were 0.12 inch (3 mm) in diameter on 0.20 inch (5 mm) centers providing about 33 percent free area.
  • the surface 20 comprises two portions: the first portion 24 is smoothly curved starting tangent to the outlet in a radius R of about 64 inches (1610 mm) followed by a second portion 26 which is straight and inclined to the horizontal surface of belt 30 at an angle 8 of about 46 degrees.
  • a plenum chamber 28 encloses the underside of the chute 18 and is connected to a source of vacuum (not shown) for drawing vacuum on the perforations 22.
  • a vacuum is applied to perforations 22 through plenum chamber 28 at a sufficiently high level so that crimped tow 10' is actually pushed down the chute 18 to the conveyor by fiber exiting the crimper-stuffing-box 14. In this manner the crimped tow 10' is moved from the crimper to the conveyor without changing tow geometry as it was in the crimper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Advancing Webs (AREA)
EP85303023A 1984-04-30 1985-04-29 Vorrichtung zum Weiterführen von gekräuselten Fadenkabeln Withdrawn EP0160561A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US605186 1984-04-30
US06/605,186 USH20H (en) 1984-04-30 1984-04-30 Vacuum slide for crimped tow delivery

Publications (1)

Publication Number Publication Date
EP0160561A2 true EP0160561A2 (de) 1985-11-06

Family

ID=24422590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85303023A Withdrawn EP0160561A2 (de) 1984-04-30 1985-04-29 Vorrichtung zum Weiterführen von gekräuselten Fadenkabeln

Country Status (3)

Country Link
US (1) USH20H (de)
EP (1) EP0160561A2 (de)
JP (1) JPS60242157A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699558A1 (fr) * 1992-12-23 1994-06-24 Horauf Maschinenfabrik Gmbh Co Dispositif pour texturer du fil.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6402436B1 (en) * 2000-04-28 2002-06-11 Eastman Chemical Company Method and device for conveying planar ribbon of crimped fiber using air jets
US7228604B2 (en) * 2003-11-19 2007-06-12 American Linc Corporation System, apparatus, and method of reducing production loss having compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699558A1 (fr) * 1992-12-23 1994-06-24 Horauf Maschinenfabrik Gmbh Co Dispositif pour texturer du fil.

Also Published As

Publication number Publication date
JPS60242157A (ja) 1985-12-02
USH20H (en) 1986-02-04

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Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19870605

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WOODLEY, JAMES LAMAR, JR.

Inventor name: WATSON, THOMAS HERBERT

Inventor name: NUNN, GARY FRANKLIN