JPS57178737A - Removing method for rubber burr and metallic mold capable of removing the same - Google Patents

Removing method for rubber burr and metallic mold capable of removing the same

Info

Publication number
JPS57178737A
JPS57178737A JP6373381A JP6373381A JPS57178737A JP S57178737 A JPS57178737 A JP S57178737A JP 6373381 A JP6373381 A JP 6373381A JP 6373381 A JP6373381 A JP 6373381A JP S57178737 A JPS57178737 A JP S57178737A
Authority
JP
Japan
Prior art keywords
rubber
burr
product
molds
ring
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
JP6373381A
Other languages
Japanese (ja)
Inventor
Akira Washida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP6373381A priority Critical patent/JPS57178737A/en
Publication of JPS57178737A publication Critical patent/JPS57178737A/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/40—Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
    • 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
    • B29C37/02—Deburring or deflashing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
    • B29L2031/7096—Rings or ring-like articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE:To omit the step of removing a burr from a molded product after upper and lower molds are opened by pressing only the product butting surface of one mold on only the other butting surface of the other mold, thereby automatically separating the burr part except the rubber product from the butting surfaces of the molds at the molding time. CONSTITUTION:After unvulcanized rubber is filled in the cavity 4, 5 of molds 1, 2, a push plate 12 and a bearing plate 13 are pressed to contact each other, a ring 6 is pressed to a ring 9, and they are heated. Then, the rubber in the cavity 4, 5 is partly swelled out as rubber burr from the butting surfaces 3, 16. An upper base mold 7 and the ring 8 isolate from the butting surfaces 3, 6 via the rubber burr, float and stops moving when they contact with the push plate 12. After the rubber is completely vulcanized, the molds 1, 2 are opened. Then, the peripheries 14, 15 of the product bear concentrated compression force from the first. Accordingly, the rubber burr and the product have already been separated, and the step of individually removing the rubber burrs can be omitted.
JP6373381A 1981-04-27 1981-04-27 Removing method for rubber burr and metallic mold capable of removing the same Pending JPS57178737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6373381A JPS57178737A (en) 1981-04-27 1981-04-27 Removing method for rubber burr and metallic mold capable of removing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6373381A JPS57178737A (en) 1981-04-27 1981-04-27 Removing method for rubber burr and metallic mold capable of removing the same

Publications (1)

Publication Number Publication Date
JPS57178737A true JPS57178737A (en) 1982-11-04

Family

ID=13237894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6373381A Pending JPS57178737A (en) 1981-04-27 1981-04-27 Removing method for rubber burr and metallic mold capable of removing the same

Country Status (1)

Country Link
JP (1) JPS57178737A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231019A (en) * 1975-09-01 1977-03-09 Mitsubishi Chem Ind Ltd Process for preparation of maleic anhydride
JPS5452733A (en) * 1977-10-04 1979-04-25 Pola Kasei Kogyo Kk Skin cosmetics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231019A (en) * 1975-09-01 1977-03-09 Mitsubishi Chem Ind Ltd Process for preparation of maleic anhydride
JPS5452733A (en) * 1977-10-04 1979-04-25 Pola Kasei Kogyo Kk Skin cosmetics

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