GB935560A - Improvements in, or relating to the formation of, bends in thermoplastic tubes - Google Patents

Improvements in, or relating to the formation of, bends in thermoplastic tubes

Info

Publication number
GB935560A
GB935560A GB71/61A GB7161A GB935560A GB 935560 A GB935560 A GB 935560A GB 71/61 A GB71/61 A GB 71/61A GB 7161 A GB7161 A GB 7161A GB 935560 A GB935560 A GB 935560A
Authority
GB
United Kingdom
Prior art keywords
tube
mould
mould halves
bends
duct
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
GB71/61A
Inventor
Kenneth Victor Pepper
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.)
EXTRUDEX Ltd
Original Assignee
EXTRUDEX Ltd
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 EXTRUDEX Ltd filed Critical EXTRUDEX Ltd
Priority to GB71/61A priority Critical patent/GB935560A/en
Publication of GB935560A publication Critical patent/GB935560A/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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • 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
    • B29C53/08—Bending or folding of tubes or other profiled members
    • B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/079—Auxiliary parts or inserts
    • B29C2949/08—Preforms made of several individual parts, e.g. by welding or gluing parts together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/258—Tubular
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/004—Bent tubes
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

935,560. Bending thermoplastic tubes. EXTRUDEX Ltd. Feb. 8, 1962 [Jan. 2, 1961], No. 71/61. Class 87(2). To form a bend or series of bends in a heated thermoplastic tube of e.g. P.V.C. the tube, which may be extruded, is suspended between mould halves 2, 3 by a top clamp 5, which is counterbalanced and vertically moveable, and a bottom clamp 4 which moves horizontally with mould piece 2. The mould halves are closed and the tube first collapses within the mould cavity, Fig. 3 (not shown) and is then blow moulded through duct 10 in lower plug 9 to conform with the shape of the mould. The top plug 8 may be opened to the atmosphere through a valve so that after the moulding operation the tube may be cooled by a steady stream of air. The tube may be preheated, while suspended between the mould halves, by hot air from a source which may be connected to duct 10. The mould halves may be hollowed to contain heating fluid, to further heat the plastic prior to moulding, or cooling fluid. The operation may be wholly or partly controlled automatically.
GB71/61A 1961-01-02 1961-01-02 Improvements in, or relating to the formation of, bends in thermoplastic tubes Expired GB935560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB71/61A GB935560A (en) 1961-01-02 1961-01-02 Improvements in, or relating to the formation of, bends in thermoplastic tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB71/61A GB935560A (en) 1961-01-02 1961-01-02 Improvements in, or relating to the formation of, bends in thermoplastic tubes

Publications (1)

Publication Number Publication Date
GB935560A true GB935560A (en) 1963-08-28

Family

ID=9697895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB71/61A Expired GB935560A (en) 1961-01-02 1961-01-02 Improvements in, or relating to the formation of, bends in thermoplastic tubes

Country Status (1)

Country Link
GB (1) GB935560A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097573A (en) * 1972-01-12 1978-06-27 Rieber & Son A/S Method for bending thermoplastic pipes
EP0464345A2 (en) * 1990-05-23 1992-01-08 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Process and apparatus for deforming thermoplastic parts
US5200124A (en) * 1990-11-13 1993-04-06 Mckechnie Plastics Limited Method and apparatus for shaping thermoplastic tubes
WO1995007172A1 (en) * 1993-09-04 1995-03-16 Itt Automotive Europe Gmbh Process and device for bending plastic tubes
EP0693358A1 (en) * 1994-07-18 1996-01-24 Salflex Polymers Ltd. A process for making a blow molded product
GB2353965A (en) * 1999-08-27 2001-03-14 Standard Products Co Forming curved extruded members
EP1083038A2 (en) * 1999-09-07 2001-03-14 Fischer-W. Müller Blasformtechnik GmbH Blow moulding apparatus for producing hollow shaped articles
CN112805135A (en) * 2018-06-12 2021-05-14 优奥玛塑胶部件(昆山)有限公司 Method for bending plastic pipes and device for carrying out said method
EP4385706A1 (en) * 2022-12-15 2024-06-19 HS R & A Co., Ltd. Hose forming device and mehtod of forming hose

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097573A (en) * 1972-01-12 1978-06-27 Rieber & Son A/S Method for bending thermoplastic pipes
EP0464345A2 (en) * 1990-05-23 1992-01-08 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Process and apparatus for deforming thermoplastic parts
EP0464345A3 (en) * 1990-05-23 1992-04-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Process and apparatus for deforming thermoplastic parts
US5200124A (en) * 1990-11-13 1993-04-06 Mckechnie Plastics Limited Method and apparatus for shaping thermoplastic tubes
WO1995007172A1 (en) * 1993-09-04 1995-03-16 Itt Automotive Europe Gmbh Process and device for bending plastic tubes
EP0693358A1 (en) * 1994-07-18 1996-01-24 Salflex Polymers Ltd. A process for making a blow molded product
US5662842A (en) * 1994-07-18 1997-09-02 Salflex Polymers Ltd. Process for blow molding hollow objects with independent movement of mold halves
GB2353965A (en) * 1999-08-27 2001-03-14 Standard Products Co Forming curved extruded members
EP1083038A2 (en) * 1999-09-07 2001-03-14 Fischer-W. Müller Blasformtechnik GmbH Blow moulding apparatus for producing hollow shaped articles
EP1083038A3 (en) * 1999-09-07 2003-02-05 SIG Kautex GmbH & Co. KG Blow moulding apparatus for producing hollow shaped articles
CN112805135A (en) * 2018-06-12 2021-05-14 优奥玛塑胶部件(昆山)有限公司 Method for bending plastic pipes and device for carrying out said method
EP4385706A1 (en) * 2022-12-15 2024-06-19 HS R & A Co., Ltd. Hose forming device and mehtod of forming hose

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