JPS55113519A - Forming plastic pipe socket - Google Patents

Forming plastic pipe socket

Info

Publication number
JPS55113519A
JPS55113519A JP2222379A JP2222379A JPS55113519A JP S55113519 A JPS55113519 A JP S55113519A JP 2222379 A JP2222379 A JP 2222379A JP 2222379 A JP2222379 A JP 2222379A JP S55113519 A JPS55113519 A JP S55113519A
Authority
JP
Japan
Prior art keywords
plastic pipe
socket
core
portions
rolls
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
JP2222379A
Other languages
Japanese (ja)
Other versions
JPS6235901B2 (en
Inventor
Junsuke Kyomen
Masayuki Sakaguchi
Toshio Nakamoto
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 JP2222379A priority Critical patent/JPS55113519A/en
Publication of JPS55113519A publication Critical patent/JPS55113519A/en
Publication of JPS6235901B2 publication Critical patent/JPS6235901B2/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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0003—Moulding articles between moving mould surfaces, e.g. turning surfaces
    • 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
    • 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
    • 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
    • B29C57/045—Belling or enlarging, e.g. combined with forming a groove using mechanical means rotating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE:To procure rubber ring sealability for a plastic pipe socket by a method wherein a heated end portion of a plastic pipe is forcibly fitted over a socket forming core having a reversely slanted surface, and then the portions near slender portions are formed by rotary forming means moved in the circumferential direction. CONSTITUTION:A plastic pipe end portion with increased wall thickness is heated, and forcibly fitted over a socket forming core 1. The core 1 comprises the first expanding slanted step portion a in the rear, the second expanding slanted step portion b in the front, and a reversely slanted surface c therebetween. Then rotary forming rolls 21, 22 are moved in the circumferential direction to crush the gaps present around the slender portions b0 of the portion b. Upon this compression, the inside surface of a rubber ring fitting groove of the socket is formed with predetermined precision by the outside surface of the core 1. By the circumferential movement of the rolls 21 and 22, the plastic contacted by the rolls is drawn in the circumferential direction, so that the circumferential tensile strength of these portions of the plastic pipe is increased.
JP2222379A 1979-02-26 1979-02-26 Forming plastic pipe socket Granted JPS55113519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2222379A JPS55113519A (en) 1979-02-26 1979-02-26 Forming plastic pipe socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2222379A JPS55113519A (en) 1979-02-26 1979-02-26 Forming plastic pipe socket

Publications (2)

Publication Number Publication Date
JPS55113519A true JPS55113519A (en) 1980-09-02
JPS6235901B2 JPS6235901B2 (en) 1987-08-04

Family

ID=12076792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2222379A Granted JPS55113519A (en) 1979-02-26 1979-02-26 Forming plastic pipe socket

Country Status (1)

Country Link
JP (1) JPS55113519A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5289177A (en) * 1976-01-21 1977-07-26 Hitachi Ltd Method of grooving inner surface of pipe material
JPS53136076A (en) * 1977-05-02 1978-11-28 Kubota Ltd Fabrication of synthetic resin pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5289177A (en) * 1976-01-21 1977-07-26 Hitachi Ltd Method of grooving inner surface of pipe material
JPS53136076A (en) * 1977-05-02 1978-11-28 Kubota Ltd Fabrication of synthetic resin pipe

Also Published As

Publication number Publication date
JPS6235901B2 (en) 1987-08-04

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