GB1374451A - Device for preventing non-uniform shrinkage of moulded thermoplastic material - Google Patents

Device for preventing non-uniform shrinkage of moulded thermoplastic material

Info

Publication number
GB1374451A
GB1374451A GB5913671A GB5913671A GB1374451A GB 1374451 A GB1374451 A GB 1374451A GB 5913671 A GB5913671 A GB 5913671A GB 5913671 A GB5913671 A GB 5913671A GB 1374451 A GB1374451 A GB 1374451A
Authority
GB
United Kingdom
Prior art keywords
heel
insert
cavity
moulded
uniform shrinkage
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.)
Expired
Application number
GB5913671A
Other languages
English (en)
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.)
British Bata Shoe Co Ltd
Original Assignee
British Bata Shoe Co Ltd
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 British Bata Shoe Co Ltd filed Critical British Bata Shoe Co Ltd
Publication of GB1374451A publication Critical patent/GB1374451A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018—Moulds
    • 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
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/568—Applying vibrations to the mould parts
    • B29C2045/5685—Applying vibrations to the mould parts for eliminating internal voids in the moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
GB5913671A 1971-05-17 1971-12-20 Device for preventing non-uniform shrinkage of moulded thermoplastic material Expired GB1374451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA113,173A CA944113A (en) 1971-05-17 1971-05-17 Device for preventing shrinkage of moulded thermoplastic material

Publications (1)

Publication Number Publication Date
GB1374451A true GB1374451A (en) 1974-11-20

Family

ID=4089701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5913671A Expired GB1374451A (en) 1971-05-17 1971-12-20 Device for preventing non-uniform shrinkage of moulded thermoplastic material

Country Status (6)

Country Link
BR (1) BR7203204D0 (enExample)
CA (1) CA944113A (enExample)
FR (1) FR2137414B1 (enExample)
GB (1) GB1374451A (enExample)
IT (1) IT944604B (enExample)
NL (1) NL168753C (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228970A (ja) * 1992-02-21 1993-09-07 Sony Corp 射出圧縮成形法、これに用いる射出成形金型及び射出圧縮成形機
DE102004062766A1 (de) * 2004-12-21 2006-06-29 Miele & Cie. Kg Verfahren zur Herstellung einer Dichtungsmanschette für eine Waschmaschine und Dichtungsmanschette für eine Waschmaschine

Also Published As

Publication number Publication date
IT944604B (it) 1973-04-20
NL7111257A (enExample) 1972-11-21
NL168753C (nl) 1982-05-17
CA944113A (en) 1974-03-26
DE2223737A1 (de) 1972-11-30
DE2223737B2 (de) 1976-06-16
FR2137414A1 (enExample) 1972-12-29
FR2137414B1 (enExample) 1973-05-25
BR7203204D0 (pt) 1973-06-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee