GB970461A - A method of producing coiled plastic springs and apparatus for performing the same - Google Patents

A method of producing coiled plastic springs and apparatus for performing the same

Info

Publication number
GB970461A
GB970461A GB1608363A GB1608363A GB970461A GB 970461 A GB970461 A GB 970461A GB 1608363 A GB1608363 A GB 1608363A GB 1608363 A GB1608363 A GB 1608363A GB 970461 A GB970461 A GB 970461A
Authority
GB
United Kingdom
Prior art keywords
polyethylene
fed
core
plastic
jacket
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
GB1608363A
Inventor
Hans Wagner
Erich Koch
Paul Kempf
Alexander Bauer
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.)
SACHSISCHE GLASFASER IND WAGNE
Original Assignee
SACHSISCHE GLASFASER IND WAGNE
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 SACHSISCHE GLASFASER IND WAGNE filed Critical SACHSISCHE GLASFASER IND WAGNE
Priority to GB1608363A priority Critical patent/GB970461A/en
Publication of GB970461A publication Critical patent/GB970461A/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
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/774—Springs
    • B29L2031/7742—Springs helical springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Springs (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

970,461. Moulding helical coil springs. SACHSISCHE GLASFASER - INDUSTRIE WAGNER & CO. April 24, 1963, No. 16083/63. Heading B5A. In a method of moulding helical coil springs from glass fibre or otherwise reinforced synthetic plastics the plastic material is fed from an extruding nozzle 1 fitted with mouthpiece 9 into helical grooves 4 in a jacket 3 which is axially removable from a smooth polished inner core 2, the core 2 being hollow and fitted with an internal screw-thread which works on a fixed screw 5, so that rotation of the mandrel 3, 4 causes it to move axially. The external diameter of the core 2 defines the internal diameter of the finished coil. To prevent the molten plastic material from running out of the grooves, after winding a " Cellophane " (Registered Trade Mark), sheath may be wound over the jacket, or alternatively the plastic may be extruded through, e.g., a polyethylene sheath and retained in this in the groove 4. In a continuous process a flat strip of e.g. polyethylene is fed along with the plastics material into a funnel which wraps the polyethylene around the extruded plastic, the sheathed extrudate then being fed into a continuously axially moved rotating mandrel, which is formed from detachable sections.
GB1608363A 1963-04-24 1963-04-24 A method of producing coiled plastic springs and apparatus for performing the same Expired GB970461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1608363A GB970461A (en) 1963-04-24 1963-04-24 A method of producing coiled plastic springs and apparatus for performing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1608363A GB970461A (en) 1963-04-24 1963-04-24 A method of producing coiled plastic springs and apparatus for performing the same

Publications (1)

Publication Number Publication Date
GB970461A true GB970461A (en) 1964-09-23

Family

ID=10070874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1608363A Expired GB970461A (en) 1963-04-24 1963-04-24 A method of producing coiled plastic springs and apparatus for performing the same

Country Status (1)

Country Link
GB (1) GB970461A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009027226A2 (en) * 2007-08-27 2009-03-05 Eads Deutschland Gmbh Method for the production of a rope-type semifinished spring element and a helical spring element, tool for machining a rope-type semifinished spring element, shaping member for shaping a rope-type semifinished spring element, and helical spring element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009027226A2 (en) * 2007-08-27 2009-03-05 Eads Deutschland Gmbh Method for the production of a rope-type semifinished spring element and a helical spring element, tool for machining a rope-type semifinished spring element, shaping member for shaping a rope-type semifinished spring element, and helical spring element
WO2009027226A3 (en) * 2007-08-27 2009-10-15 Eads Deutschland Gmbh Method for the production of a rope-type semifinished spring element and a helical spring element, tool for machining a rope-type semifinished spring element, shaping member for shaping a rope-type semifinished spring element, and helical spring element

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