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JPS57137111A - Manufacture of plastic pipe joint - Google Patents

Manufacture of plastic pipe joint

Info

Publication number
JPS57137111A
JPS57137111A JP2357881A JP2357881A JPS57137111A JP S57137111 A JPS57137111 A JP S57137111A JP 2357881 A JP2357881 A JP 2357881A JP 2357881 A JP2357881 A JP 2357881A JP S57137111 A JPS57137111 A JP S57137111A
Authority
JP
Japan
Prior art keywords
frontal portion
receiving port
mold
low
core mold
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
JP2357881A
Other languages
Japanese (ja)
Other versions
JPS6247701B2 (en
Inventor
Ryozo Oota
Junsuke Kyomen
Masayuki Sakaguchi
Kenzo Nishitani
Hideyuki Kinoshita
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 JP2357881A priority Critical patent/JPS57137111A/en
Publication of JPS57137111A publication Critical patent/JPS57137111A/en
Publication of JPS6247701B2 publication Critical patent/JPS6247701B2/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B29C37/0014—Discharging moulded articles from the mould by flexibly or permanently deforming undercut portions of the articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/261—Moulds having tubular mould cavities
    • B29C45/2612—Moulds having tubular mould cavities for manufacturing tubular articles with an annular groove
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings

Landscapes

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

Abstract

PURPOSE:To effectively cool the frontal portion of receiving port and a groove to be fitted with a rubber ring adjacent to the frontal portion by bringing the frontal portion of the receiving port into contact with the low-temperature zone of a core mold under sufficient facial pressure when the core mold goes out and moves. CONSTITUTION:After injection molding, the low-temperature mold piece 12 of an outer mold 1 is removed, and then the hot mold piece 11 of the outer mold is taken out and moved by operating an oil-pressure cylinder 3. Toward the ending period of the operation, a core mold 2 is taken out and moved by coupling of the mold piece 11, whereupon the core mold 2 slips out through a forcible drawing stage from a groove A for fitting elastic rubber ring while keeping the sliding contact between a low-temperature zone 22 and the frontal portion B of a receiving port. Since the frontal portion of the receiving port undergoes a deformation to some extent but the outside diameter R2 of the low-temperature zone 22 of the core mold 2 is larger than the inside diameter R1 at the frontal portion B of the receiving port, the low-temperature zone 22 of the core mold 2 slips out and moves inside the frontal portion B of the receiving port while forcibly opening up the frontal portion of the receiving port.
JP2357881A 1981-02-18 1981-02-18 Manufacture of plastic pipe joint Granted JPS57137111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2357881A JPS57137111A (en) 1981-02-18 1981-02-18 Manufacture of plastic pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2357881A JPS57137111A (en) 1981-02-18 1981-02-18 Manufacture of plastic pipe joint

Publications (2)

Publication Number Publication Date
JPS57137111A true JPS57137111A (en) 1982-08-24
JPS6247701B2 JPS6247701B2 (en) 1987-10-09

Family

ID=12114432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2357881A Granted JPS57137111A (en) 1981-02-18 1981-02-18 Manufacture of plastic pipe joint

Country Status (1)

Country Link
JP (1) JPS57137111A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598961A1 (en) * 1986-05-26 1987-11-27 Fip Formatura Inienzione Poli DEVICE FOR FORMING THERMOPLASTIC PRODUCTS HAVING RETAILERS
EP4227062A4 (en) * 2020-10-05 2024-10-23 DIC Corporation FORCED EXTRACTION MOLDED ARTICLE, POLYARYLENE SULPHIDE RESIN COMPOSITION AND METHOD FOR PRODUCING A FORCED EXTRACTION MOLDED ARTICLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598961A1 (en) * 1986-05-26 1987-11-27 Fip Formatura Inienzione Poli DEVICE FOR FORMING THERMOPLASTIC PRODUCTS HAVING RETAILERS
EP4227062A4 (en) * 2020-10-05 2024-10-23 DIC Corporation FORCED EXTRACTION MOLDED ARTICLE, POLYARYLENE SULPHIDE RESIN COMPOSITION AND METHOD FOR PRODUCING A FORCED EXTRACTION MOLDED ARTICLE

Also Published As

Publication number Publication date
JPS6247701B2 (en) 1987-10-09

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