GB1343512A - Method and apparatus for multifilament extrusion - Google Patents

Method and apparatus for multifilament extrusion

Info

Publication number
GB1343512A
GB1343512A GB4328271A GB4328271A GB1343512A GB 1343512 A GB1343512 A GB 1343512A GB 4328271 A GB4328271 A GB 4328271A GB 4328271 A GB4328271 A GB 4328271A GB 1343512 A GB1343512 A GB 1343512A
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
distance
filaments
extrusion
sept
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.)
Expired
Application number
GB4328271A
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of GB1343512A publication Critical patent/GB1343512A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1343512 Melt spinning apparatus BELOIT CORP 16 Sept 1971 [24 Sept 1970] 43282/71 Heading B5B Apparatus for producing a multifilament strand 3 comprises a plurality of downwardlydirected extrusion orifices 2 and disposed vertically below and spaced from the orifices a heat exchanger 4 comprising a tube 5 having at its lower end 12 an opening 7 through which the multifilament strand passes to conventional wind-up means 16 and 17 and a first baffle 9 forming an annular chamber 10 surrounding the extruded filaments and blower 8 for introducing cooling gas to the lower end of the heat exchanger 4 via chamber 10 so that the gas stream does not contact the filaments for a distance A but flows upwards in an annular flow pattern and at its upper end 6 a second baffle 11 comprising a cylindrical portion 13 and a diverging conical portion 14 which diverts the countercurrently-flowing gas stream in an annular flow pattern away from the extruded filament strand for a distance C, the multifilaments being cooled by contact with the countercurrent gas in the heat exchanger over a distance B. As shown the cooling gas may be ambient air which may be further cooled by passage through heat exchanger 17 and preferably filtered by one or more conventional filter screens 18 in conduit 19 or screen 20 in annular chamber 10. The melt-extrusion of polypropylene filaments is exemplified.
GB4328271A 1970-09-24 1971-09-16 Method and apparatus for multifilament extrusion Expired GB1343512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7515670A 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
GB1343512A true GB1343512A (en) 1974-01-10

Family

ID=22123930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4328271A Expired GB1343512A (en) 1970-09-24 1971-09-16 Method and apparatus for multifilament extrusion

Country Status (5)

Country Link
US (1) US3686386A (en)
JP (1) JPS5347412B1 (en)
CA (1) CA956417A (en)
ES (1) ES395322A1 (en)
GB (1) GB1343512A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1415947A (en) * 1972-09-11 1975-12-03 Autlmatik Apparate Maschinenba Spinning machines for producing and reeling synthetic fibres
CH663222A5 (en) * 1983-02-25 1987-11-30 Barmag Barmer Maschf SPINNING MACHINE FOR CHEMICAL FIBERS.
DE3406347A1 (en) * 1983-02-25 1984-10-11 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Spinning apparatus for chemical fibres with a blowing box and spinning shaft
DE4133329C2 (en) * 1991-10-08 1994-09-15 Hench Automatik App Masch Process for cooling and granulating strands which melt out of nozzles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252684A (en) * 1938-08-09 1941-08-19 Du Pont Apparatus for the production of artificial structures
JPS426243Y1 (en) * 1966-03-22 1967-03-27
US3611485A (en) * 1968-12-30 1971-10-12 Monsanto Co Spinning chimney

Also Published As

Publication number Publication date
CA956417A (en) 1974-10-22
JPS5347412B1 (en) 1978-12-21
ES395322A1 (en) 1975-02-16
US3686386A (en) 1972-08-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee