FR2051885A5 - Continually curving thermoplastic compon- - ents - Google Patents

Continually curving thermoplastic compon- - ents

Info

Publication number
FR2051885A5
FR2051885A5 FR6921929A FR6921929A FR2051885A5 FR 2051885 A5 FR2051885 A5 FR 2051885A5 FR 6921929 A FR6921929 A FR 6921929A FR 6921929 A FR6921929 A FR 6921929A FR 2051885 A5 FR2051885 A5 FR 2051885A5
Authority
FR
France
Prior art keywords
thermoplastic
compon
ents
belt
shaping
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
FR6921929A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR6921929A priority Critical patent/FR2051885A5/en
Application granted granted Critical
Publication of FR2051885A5 publication Critical patent/FR2051885A5/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • B29C53/04Bending or folding of plates or sheets
    • B29C53/043Bending or folding of plates or sheets using rolls or endless belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0003Moulding articles between moving mould surfaces, e.g. turning surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

Continuously shaping a series of thermoplastic objects to obtain a curved profile by feeding the objects through a pre-heater oven and then onto an elastic conveyor which traps the object between the belt and a rotating drum with the required radius of curvature. After being released from the belt/drum nip, the curved object is dropped into a quench bath. A continual process to replace a prior art batch pressing operation esp. for shaping combs or hair grips made of cellulose acetate.
FR6921929A 1969-07-01 1969-07-01 Continually curving thermoplastic compon- - ents Expired FR2051885A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6921929A FR2051885A5 (en) 1969-07-01 1969-07-01 Continually curving thermoplastic compon- - ents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6921929A FR2051885A5 (en) 1969-07-01 1969-07-01 Continually curving thermoplastic compon- - ents

Publications (1)

Publication Number Publication Date
FR2051885A5 true FR2051885A5 (en) 1971-04-09

Family

ID=9036600

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6921929A Expired FR2051885A5 (en) 1969-07-01 1969-07-01 Continually curving thermoplastic compon- - ents

Country Status (1)

Country Link
FR (1) FR2051885A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664616A (en) * 1986-05-27 1987-05-12 Armstrong World Industries, Inc. Single-pass tile domer
CN109048344A (en) * 2018-08-06 2018-12-21 盐城捷纳福传动科技有限公司 A kind of conveyer belt polishing welding recyclable device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664616A (en) * 1986-05-27 1987-05-12 Armstrong World Industries, Inc. Single-pass tile domer
CN109048344A (en) * 2018-08-06 2018-12-21 盐城捷纳福传动科技有限公司 A kind of conveyer belt polishing welding recyclable device
CN109048344B (en) * 2018-08-06 2020-05-12 盐城捷纳福传动科技有限公司 Conveyer belt polishing welding recovery unit

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Legal Events

Date Code Title Description
ST Notification of lapse