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JPS555823A - Method for molding enlarged socket - Google Patents

Method for molding enlarged socket

Info

Publication number
JPS555823A
JPS555823A JP7816278A JP7816278A JPS555823A JP S555823 A JPS555823 A JP S555823A JP 7816278 A JP7816278 A JP 7816278A JP 7816278 A JP7816278 A JP 7816278A JP S555823 A JPS555823 A JP S555823A
Authority
JP
Japan
Prior art keywords
socket
thickness
resin pipe
enlarging
diameter
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.)
Pending
Application number
JP7816278A
Other languages
Japanese (ja)
Inventor
Tadao Yoshizawa
Masayuki Sakaguchi
Yoshiaki Hara
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP7816278A priority Critical patent/JPS555823A/en
Publication of JPS555823A publication Critical patent/JPS555823A/en
Pending 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 mold an enlarged socket which is excellent in thickness, precision and the like and is most suitable for especially joint for sewer piping and so on, by enlarging a resin pipe and pressing it from both sides by means of a core mold and thickness-increasing sleeve which are specially constructed. CONSTITUTION:A resin pipe 1', which is softened by heating, is inserted in such a manner that sheathes a guide sleeve 15, and is stopped at the end of a fixed cylinder 9. Subsequently the sleeve 15 is moved backward, a diameter-enlarging drum 13 is moved forward, and then a divided core mold 12 is pushed forward. A diameter of the resin pipe 1' is thus enlarged to form a socket. A thickness- increasing sleeve 16 is pushed in a core mold in such a condition as described above, and socket-molding resin is filled in a cavity and simultaneously the resin pipe 1' is pushed in again in the inserting direction. And thus, the reduction in thickness at a rising-up part of the socket can be eliminated. EFFECT:Since a slope is not formed when enlarging a diameter, no triangular groove is made when inserting a pipe, and choking of any solid object can be prevented.
JP7816278A 1978-06-27 1978-06-27 Method for molding enlarged socket Pending JPS555823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7816278A JPS555823A (en) 1978-06-27 1978-06-27 Method for molding enlarged socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7816278A JPS555823A (en) 1978-06-27 1978-06-27 Method for molding enlarged socket

Publications (1)

Publication Number Publication Date
JPS555823A true JPS555823A (en) 1980-01-17

Family

ID=13654223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7816278A Pending JPS555823A (en) 1978-06-27 1978-06-27 Method for molding enlarged socket

Country Status (1)

Country Link
JP (1) JPS555823A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000492A1 (en) * 1987-07-16 1989-01-26 Giuseppe Tassinari A method of forming stable sockets in polyethylene pipes, with or without reinforcement
JP2006017125A (en) * 2004-07-01 2006-01-19 General Electric Co <Ge> Method and device for manufacturing rotary machine
ITRA20130026A1 (en) * 2013-12-04 2014-03-05 Ipm Srl PLASTIC DEFORMATION FOR HOT DEFORMATION OF PLASTIC TUBE GLASSES WITH RINCALCO DOUBLE FLANGE AND INDEPENDENT MOVEMENTS
CN104760219A (en) * 2015-04-10 2015-07-08 北京化工大学 Experimental mold capable of adjusting thickness of product
WO2017205327A1 (en) * 2016-05-26 2017-11-30 Dow Global Technologies Llc Mandrel and support assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127979A (en) * 1974-03-29 1975-10-08
JPS533958A (en) * 1976-06-30 1978-01-14 Kubota Ltd Device for molding faucet for connecting packings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127979A (en) * 1974-03-29 1975-10-08
JPS533958A (en) * 1976-06-30 1978-01-14 Kubota Ltd Device for molding faucet for connecting packings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000492A1 (en) * 1987-07-16 1989-01-26 Giuseppe Tassinari A method of forming stable sockets in polyethylene pipes, with or without reinforcement
GR880100464A (en) * 1987-07-16 1989-03-08 Tassinari Ciuseppe A method of forming stable sockets in polyethylene pipes with or without reinforcement
JP2006017125A (en) * 2004-07-01 2006-01-19 General Electric Co <Ge> Method and device for manufacturing rotary machine
ITRA20130026A1 (en) * 2013-12-04 2014-03-05 Ipm Srl PLASTIC DEFORMATION FOR HOT DEFORMATION OF PLASTIC TUBE GLASSES WITH RINCALCO DOUBLE FLANGE AND INDEPENDENT MOVEMENTS
WO2015083102A1 (en) * 2013-12-04 2015-06-11 Ipm S.R.L. Apparatus and method for making a bell joint
CN104760219A (en) * 2015-04-10 2015-07-08 北京化工大学 Experimental mold capable of adjusting thickness of product
WO2017205327A1 (en) * 2016-05-26 2017-11-30 Dow Global Technologies Llc Mandrel and support assembly

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