GB825392A - Method and apparatus for manufacturing corrugated thermoplastic sheets - Google Patents

Method and apparatus for manufacturing corrugated thermoplastic sheets

Info

Publication number
GB825392A
GB825392A GB10051/58A GB1005158A GB825392A GB 825392 A GB825392 A GB 825392A GB 10051/58 A GB10051/58 A GB 10051/58A GB 1005158 A GB1005158 A GB 1005158A GB 825392 A GB825392 A GB 825392A
Authority
GB
United Kingdom
Prior art keywords
web
moulds
corrugated
mould
corrugations
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
GB10051/58A
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.)
LAVORAZIONE MAT PLASTICHE Sas
Original Assignee
LAVORAZIONE MAT PLASTICHE Sas
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 LAVORAZIONE MAT PLASTICHE Sas filed Critical LAVORAZIONE MAT PLASTICHE Sas
Publication of GB825392A publication Critical patent/GB825392A/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
    • B29C53/22Corrugating
    • B29C53/24Corrugating of plates or sheets
    • B29C53/26Corrugating of plates or sheets parallel with direction of feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

825,392. Moulding corrugated sheets of thermoplastic synthetic resin. S. A. S. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M. I. COLOMBO & CO. March 28, 1958 [April 5, 1957 ; Feb. 1, 1958 ; March 4, 1958], No. 10051/58. Class 87(2). In a method of longitudinally corrugating a web of thermoplastic synthetic resin material the web is heated to its softening temperature, and is then drawn along and forced into the corrugations of a cooled mould whilst maintaining its original width. A web 14, Fig. 1, of a polyvinyl, methacrylic, polyethylene or other thermoplastic resin obtained by cutting a tube 12 extruded from a nozzle 11 is flattened between cooled moulds 40, 41 and drawn by rollers 15, 16 and 19, 20 along a path between infra red radiators 25, 26 and between corrugated moulds 27, 28 and 27<SP>1</SP>, 28<SP>1</SP>. The latter consist of metal casings filled with. cooling water and having complementary corrugated moulding surfaces, the web being pressed into the corrugations by the weight of the upper mould assisted if desired by a spring 42. The moulds 27, 28 and 27<SP>1</SP>, 28<SP>1</SP> may be replaced by moulds 127, 128, Figs. 4 and 5, comprising hollow metal cylinders 50 ... 50n and 50<SP>1</SP> to 50<SP>1</SP>m interconnected by tubes 53, 54 and 53<SP>1</SP>, 54<SP>1</SP> through which cooling water is supplied to the cylinders. In an alternative apparatus, Fig. 11 (not shown), the rollers 19, 20 are replaced by a pair of endless belts and the moulds 100, 107, Fig. 12, form corrugations of dove-tail cross-section. The mould 107 is suspended from rails (not shown) so that it may be moved horizontally into interlocking engagement with the mould 100 after the web has been passed over the corrugated surface of the latter. In a further construction a single corrugated mould only is used into the corrugations of which the web is first pressed by U-shaped tubular members and then maintained in contact with the corrugated surface by suction.
GB10051/58A 1957-04-05 1958-03-28 Method and apparatus for manufacturing corrugated thermoplastic sheets Expired GB825392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT825392X 1957-04-05

Publications (1)

Publication Number Publication Date
GB825392A true GB825392A (en) 1959-12-16

Family

ID=11318558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10051/58A Expired GB825392A (en) 1957-04-05 1958-03-28 Method and apparatus for manufacturing corrugated thermoplastic sheets

Country Status (1)

Country Link
GB (1) GB825392A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124177A (en) * 1982-06-08 1984-02-15 Alfred John Plummer Flexible, protective, decorative strip
GB2192203A (en) * 1986-07-01 1988-01-06 Walter A J Joyce Improvements in and relating to sheet material
GB2259666A (en) * 1991-09-19 1993-03-24 British Aerospace Pultruding at locations sequentially across the article width
EP1336461A1 (en) * 2000-11-20 2003-08-20 Sun East Research Ltd. Co. Method and apparatus for producing resin formed article
WO2024040548A1 (en) * 2022-08-26 2024-02-29 Envision Energy Co., Ltd A web, a wind turbine blade and a manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124177A (en) * 1982-06-08 1984-02-15 Alfred John Plummer Flexible, protective, decorative strip
GB2192203A (en) * 1986-07-01 1988-01-06 Walter A J Joyce Improvements in and relating to sheet material
GB2192203B (en) * 1986-07-01 1990-02-28 Walter Alfred James Joyce Improvements in and relating to sheet material
GB2259666A (en) * 1991-09-19 1993-03-24 British Aerospace Pultruding at locations sequentially across the article width
EP1336461A1 (en) * 2000-11-20 2003-08-20 Sun East Research Ltd. Co. Method and apparatus for producing resin formed article
EP1336461A4 (en) * 2000-11-20 2006-05-24 Sun East Res Ltd Co Method and apparatus for producing resin formed article
WO2024040548A1 (en) * 2022-08-26 2024-02-29 Envision Energy Co., Ltd A web, a wind turbine blade and a manufacturing method thereof

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