GB1080321A - Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil - Google Patents

Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil

Info

Publication number
GB1080321A
GB1080321A GB3581564A GB3581564A GB1080321A GB 1080321 A GB1080321 A GB 1080321A GB 3581564 A GB3581564 A GB 3581564A GB 3581564 A GB3581564 A GB 3581564A GB 1080321 A GB1080321 A GB 1080321A
Authority
GB
United Kingdom
Prior art keywords
mandrel
filament
die
heads
strands
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
GB3581564A
Inventor
John Emerson Burbank
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.)
Scovill Inc
Original Assignee
Scovill Inc
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 Scovill Inc filed Critical Scovill Inc
Priority to GB3581564A priority Critical patent/GB1080321A/en
Publication of GB1080321A publication Critical patent/GB1080321A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/12—Bending or folding helically, e.g. for making springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
    • B29D5/06—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the interlocking members being formed by continuous helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2005/00—Elements of slide fasteners

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1,080,321. Moulding sliding-clasp fastener stringers. SCOVILL MANUFACTURING CO. Sept. 1, 1964, No. 35815/64. Heading B5A. A sliding-clasp fastener stringer is made by winding a synthetic plastic filament F, e.g. of nylon, about a mandrel 41 to tightly enclose two inelastic strands S and C, the coiled filament being removed from the mandrel by tension applied primarily to the cords. In operation, a filament F, is led from a freely rotatable reel (30), Fig. 1 (not shown), and strands (S) and (C) of different diameters are taken from reels (63), (62) respectively through a stationary tube (35) and along the length of a mandrel 41, Fig. 3, fixed thereto, the filament F being wound under tension around the strands and the mandrel 41 subsequent to shaping action at a die 47. The die 47 is rotatably mounted in a rotating carriage 25 and performs one revolution about its own axis for one revolution of the carriage. Heads are formed on the filament by a tool (50), Fig. 7 (not shown), actuated by a cam (52) and at the same time the longer sides of the coils are flattened against die (47) by a tool (51) whose arms (54), (55), joined by a resilient cross-piece (56), are urged together by pusher slides (58) actuated by cams (59b), (60b). A further cam 61 may be used to provide heads opposite to those formed by cam (62). The filament F is unwound from die (47) in its passage to mandrel 41, Fig. 3, but the " memory " characteristics of the material facilitate resumption of coiling about the mandrel and the tight enclosure of strands S and C which tend to resume positions at opposite ends of the mandrel, see Fig. 8 (not reproduced). The formed coil is taken off by a drum 65, notched at its periphery 66 to receive the heads, the coil being heated to set by a shoe 73 and subsequently stripped from the drum by an idler wheel 75. A second embodiment of tool (51) is described, Figs. 14 and 15 (not shown), whose arms (81), (82) are sufficiently resilient to provide a forward pushing action on the material of the filament as well as lateral compression against die (47) so that more material is available for the formation of the heads.
GB3581564A 1964-09-01 1964-09-01 Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil Expired GB1080321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3581564A GB1080321A (en) 1964-09-01 1964-09-01 Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3581564A GB1080321A (en) 1964-09-01 1964-09-01 Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil

Publications (1)

Publication Number Publication Date
GB1080321A true GB1080321A (en) 1967-08-23

Family

ID=10381824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3581564A Expired GB1080321A (en) 1964-09-01 1964-09-01 Improvements in or relating to a process and apparatus for making a systhetic plastics material filament coil

Country Status (1)

Country Link
GB (1) GB1080321A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666853A (en) * 1969-05-02 1972-05-30 Naegele Feinmaschinenbau Method of manufacturing a continuous stringer for a sliding clasp fastener
GB2173440A (en) * 1985-04-09 1986-10-15 Zipper & Machinery Co Ltd Tony Constant speed filament feed in a zipper forming machine
CN102371691A (en) * 2010-08-12 2012-03-14 佛山市南海鸿明号服装配料有限公司 High-efficiency nylon zipper forming machine and processing process thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666853A (en) * 1969-05-02 1972-05-30 Naegele Feinmaschinenbau Method of manufacturing a continuous stringer for a sliding clasp fastener
GB2173440A (en) * 1985-04-09 1986-10-15 Zipper & Machinery Co Ltd Tony Constant speed filament feed in a zipper forming machine
CN102371691A (en) * 2010-08-12 2012-03-14 佛山市南海鸿明号服装配料有限公司 High-efficiency nylon zipper forming machine and processing process thereof
CN102371691B (en) * 2010-08-12 2013-12-25 佛山市鸿明号精密装备科技有限公司 High-efficiency nylon zipper forming machine and processing process thereof

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