JPS5440878A - Method of forming socket to be fitted with rubber ring - Google Patents

Method of forming socket to be fitted with rubber ring

Info

Publication number
JPS5440878A
JPS5440878A JP10804877A JP10804877A JPS5440878A JP S5440878 A JPS5440878 A JP S5440878A JP 10804877 A JP10804877 A JP 10804877A JP 10804877 A JP10804877 A JP 10804877A JP S5440878 A JPS5440878 A JP S5440878A
Authority
JP
Japan
Prior art keywords
mold
outer mold
pipe
inner mold
cooling
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
JP10804877A
Other languages
Japanese (ja)
Other versions
JPS6235898B2 (en
Inventor
Tadao Yoshizawa
Masayuki Sakaguchi
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 JP10804877A priority Critical patent/JPS5440878A/en
Publication of JPS5440878A publication Critical patent/JPS5440878A/en
Publication of JPS6235898B2 publication Critical patent/JPS6235898B2/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)
  • Joints With Sleeves (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE:The molding temperatures of the inner mold and outer mold are set to different levels previously prescribed and the outer mold is provided with cooling means and opened when the temperature difference reaches a prescribed level, thereby shortening the molding cycle for sockets to be fitted with rubber ring and conducting the sound mo lding in high efficiency. CONSTITUTION:A mold composed of inner mold 7 and outer mold 8 is heated, a softened pipe 1 is placed betwen the molds and then ring 18 is pushed in the direction toward the arrow to thicken the wall of the pipe. The outer mold is cooled by the operaion of the cooling means provided in the outer mold 8. When the temperature of the outer mold 8 becomes lower than that of the inner mold 7 by about 50-60%, the outer mold opens and runs backward and the formed socket that is still on the inner mold is forcibly cooled. When the second cooling finishes, sliding piece 12 sinks and pipe 1 is taken out of the inner mold. The resulting pipe with socket is subjected to third cooling using air water or by standing.
JP10804877A 1977-09-07 1977-09-07 Method of forming socket to be fitted with rubber ring Granted JPS5440878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10804877A JPS5440878A (en) 1977-09-07 1977-09-07 Method of forming socket to be fitted with rubber ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10804877A JPS5440878A (en) 1977-09-07 1977-09-07 Method of forming socket to be fitted with rubber ring

Publications (2)

Publication Number Publication Date
JPS5440878A true JPS5440878A (en) 1979-03-31
JPS6235898B2 JPS6235898B2 (en) 1987-08-04

Family

ID=14474600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10804877A Granted JPS5440878A (en) 1977-09-07 1977-09-07 Method of forming socket to be fitted with rubber ring

Country Status (1)

Country Link
JP (1) JPS5440878A (en)

Cited By (1)

* 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

Cited By (2)

* 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

Also Published As

Publication number Publication date
JPS6235898B2 (en) 1987-08-04

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