JPS5586712A - Molding method for receptacle of thermoplastic resin pipe - Google Patents

Molding method for receptacle of thermoplastic resin pipe

Info

Publication number
JPS5586712A
JPS5586712A JP16276778A JP16276778A JPS5586712A JP S5586712 A JPS5586712 A JP S5586712A JP 16276778 A JP16276778 A JP 16276778A JP 16276778 A JP16276778 A JP 16276778A JP S5586712 A JPS5586712 A JP S5586712A
Authority
JP
Japan
Prior art keywords
pipe
mold
ring
projection
circumferential surface
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.)
Granted
Application number
JP16276778A
Other languages
Japanese (ja)
Other versions
JPS6144052B2 (en
Inventor
Shingo Takashima
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Plastics Industries 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 Mitsubishi Plastics Industries Ltd filed Critical Mitsubishi Plastics Industries Ltd
Priority to JP16276778A priority Critical patent/JPS5586712A/en
Publication of JPS5586712A publication Critical patent/JPS5586712A/en
Publication of JPS6144052B2 publication Critical patent/JPS6144052B2/ja
Granted 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means

Landscapes

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

Abstract

PURPOSE:To prevent the occurrence of breakage occurring due to a stress applied to a shoulder portion, by forming a ring-shaped projection at an internal circumferential surface of a pipe whereat a shoulder portion of a taper socket will be formed, and by upheaving a portion, whereat the said projection is formed, at an external circumferential surface of the pipe in reverse to the projection at the inner circumferential surface. CONSTITUTION:A plastic resin pipe 5 extruded through a space between a die ring 1 and a mandrel 2 is pulled out by a drawing-out means when it is cooled upon coming in contact with an outer mold 4. When suspending or reducing a pulling-out speed, or accelerating an extrusion speed, thermoplastic resin unheaves along a tapered surface 3 of the mandrel, a ring-shaped projection portion 6 having a sharp slope 62 is provided. A portion ranging from a pipe end surface 7 to a rear end of the ring-shaped projection portion 6 is heated to be softened, a taper socket forming mold 10 being inserted thereinto. Said insertion causes the pipe 5 to be enlarged outward at the projection portion 6. The pipe end so processed is encircled with an outer mold 15, the pipe end surface 7 being brought into contact with a flange 14 by pushing in the pipe 5 or the mold 10. After the outer mold 15 is then released, the work is cooled for solidification, the mold 10 being then removed, whereby a desired pipe is produced.
JP16276778A 1978-12-25 1978-12-25 Molding method for receptacle of thermoplastic resin pipe Granted JPS5586712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16276778A JPS5586712A (en) 1978-12-25 1978-12-25 Molding method for receptacle of thermoplastic resin pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16276778A JPS5586712A (en) 1978-12-25 1978-12-25 Molding method for receptacle of thermoplastic resin pipe

Publications (2)

Publication Number Publication Date
JPS5586712A true JPS5586712A (en) 1980-06-30
JPS6144052B2 JPS6144052B2 (en) 1986-10-01

Family

ID=15760828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16276778A Granted JPS5586712A (en) 1978-12-25 1978-12-25 Molding method for receptacle of thermoplastic resin pipe

Country Status (1)

Country Link
JP (1) JPS5586712A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134769A (en) * 1975-05-16 1976-11-22 Kubota Ltd Method of forming plastic pipe faucet joint

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134769A (en) * 1975-05-16 1976-11-22 Kubota Ltd Method of forming plastic pipe faucet joint

Also Published As

Publication number Publication date
JPS6144052B2 (en) 1986-10-01

Similar Documents

Publication Publication Date Title
US4709757A (en) Method of injection molding and plastic part formed thereby
GB1496854A (en) Process and apparatus for moulding recessed articles from synthetic material
US4873043A (en) Method injection molded a plastic part with a round tubular portion
JPS6442210A (en) Method and device for manufacturing tube with fin consisting of synthetic material
ES484661A1 (en) Method of forming a socket end on a plastic pipe and a molding device for use of the method
ATE48560T1 (en) METHOD AND DEVICE FOR THE MANUFACTURE OF CROSS-SECTIONAL PIPES.
KR920007780A (en) Polypropylene Resin Molding Method
ES478197A1 (en) Method for molding blind rivet
JPS555849A (en) Molding method and die of reinforced plastic tube having annular groove
NZ333031A (en) Moulding bevelled end on catheter, forcing catheter on mandrel into mould with constricted region
IE39568L (en) Plastics pipe socket.
CA2087631A1 (en) Apparatus, insert and method for forming curing envelope
EP0842755A4 (en) Method of processing tube container and apparatus for processing the same
JPS57128517A (en) Blow molding method for bent article
JPS5577535A (en) Method of producing tubular vessel
JPS574751A (en) Method and apparatus for molding cylindrical product
JPS5610438A (en) Forming mold
JPS57125023A (en) Manufacture of synthetic resin pipe with faucet
JPS58138614A (en) Molding of plastic tube end socket
JPS6475220A (en) Manufacture of mouth part of vessel and device to be used therefor
JPS6372521A (en) Method and apparatus for molding opening of hollow molded vessel
JPS6144052B2 (en)
JPS59124826A (en) Manufacture of resin pipe
DE3170554D1 (en) Injection moulding process for making the lower part of a plastics container
JPS5682223A (en) Outer diameter sizing method, tube manufactured thereby and sizing die used therefor