GB1376753A - Moulding apparatus for the production of hollow bodies from thermoplastic material - Google Patents

Moulding apparatus for the production of hollow bodies from thermoplastic material

Info

Publication number
GB1376753A
GB1376753A GB326772A GB326772A GB1376753A GB 1376753 A GB1376753 A GB 1376753A GB 326772 A GB326772 A GB 326772A GB 326772 A GB326772 A GB 326772A GB 1376753 A GB1376753 A GB 1376753A
Authority
GB
United Kingdom
Prior art keywords
mould
blow
core
injection
plate
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
GB326772A
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.)
Worson SA
Original Assignee
Worson SA
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 Worson SA filed Critical Worson SA
Publication of GB1376753A publication Critical patent/GB1376753A/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
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/54—Moulds for undercut 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/54—Moulds for undercut articles
    • B29C2049/542—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles
    • B29C2049/546—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles by translatorilly actuating an auxiliary mould part while the mould is still in a closed position
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

1376753 Blow-moulding articles with undercuts WORSON SA 24 Jan 1972 [29 Jan 1971] 3267/72 Heading B5A Apparatus for producing a hollow body having an undercut formed by an indented circumferential wall comprises an injection mould and a blow-mould opening towards each other, the blow-mould comprising a one-piece main body portion, a base portion defining the end opposite the opening, and a plural-part auxiliary body forming the undercut portion, the parts of the auxiliary body radially movable together to define the undercut and apart so as to remove the hollow body from the mould and a rotatable core member carrying two oppositely extending mould cores located between the injection and blow-mould cavities so that, in one position thereof, it is displaceable relatively to the injection mould to insert a core into the injection mould and subsequently withdraw it therefrom with the injection moulded preform and, in the other position thereof, it is displaceable relatively to the blow-mould to insert the core and preform into the blow-mould and subsequently withdraw the core and blow-moulded article therefrom. As shown in Fig. 1, a preform 7 is formed on core 3a in injection mould 2 by injection means 1. After axially withdrawing the core 3a and preform 7, core plate 3 is rotated by 180 degrees and hollow mould 4 advanced thereon by means of mould plate 5. After blow-moulding, e.g. through core 3a with or without vacuum assistance, mould 4 is withdrawn by plate 5, auxiliary mould parts 4b opened and the moulded hollow body 6 ejected by members 8 or by compressed air. In Fig. 2 (not shown), the undercut portion is at the narrowest portion of the article, mould plate (15) being separated, from the main body of mould (14) before ejection of the article. The auxiliary mould body may be in two parts (Fig. 3, not shown), or multipart, e.g. eight (Fig. 4, not shown). The moulds may be multi-cavity, the plate 3 having a plurality of cores for co-operation therewith.
GB326772A 1971-01-29 1972-01-24 Moulding apparatus for the production of hollow bodies from thermoplastic material Expired GB1376753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH137771A CH526378A (en) 1971-01-29 1971-01-29 Molding device for the production of hollow bodies from thermoplastic material

Publications (1)

Publication Number Publication Date
GB1376753A true GB1376753A (en) 1974-12-11

Family

ID=4208996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB326772A Expired GB1376753A (en) 1971-01-29 1972-01-24 Moulding apparatus for the production of hollow bodies from thermoplastic material

Country Status (4)

Country Link
CH (1) CH526378A (en)
DE (1) DE2203562A1 (en)
FR (1) FR2123500B1 (en)
GB (1) GB1376753A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753202C2 (en) * 1977-11-29 1986-09-25 Hercules Inc., Wilmington, Del. Injection blow molding machine for producing a bottle-shaped container
DE10125824A1 (en) * 2001-05-26 2002-12-05 Bosch Gmbh Robert Molding tool for re-entrant plastic containers is split into more than two, preferably four, segments for removing formed container

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128239A (en) * 1933-02-25 1938-08-30 Plax Corp Process of molding plastic materials
US2285150A (en) * 1938-08-10 1942-06-02 Plax Corp Apparatus for forming hollow articles from plastic material
FR1223039A (en) * 1958-05-01 1960-06-14 Shipton & Company Ltd E Method and device for manufacturing vials and other hollow articles from organic plastics
BE642378A (en) * 1963-01-10
US3511845A (en) * 1966-06-22 1970-05-12 Owens Illinois Inc Method of molding plastic articles

Also Published As

Publication number Publication date
DE2203562A1 (en) 1972-08-17
CH526378A (en) 1972-08-15
FR2123500A1 (en) 1972-09-08
FR2123500B1 (en) 1976-01-16

Similar Documents

Publication Publication Date Title
CA2345658A1 (en) Apparatus and method for forming cap
CN109311201B (en) Injection molding tool with adjustable core centering device
GB1024741A (en) Process and apparatus for moulding hollow articles
GB936407A (en) Methods of and apparatus for the production of moulded hollow articles
GB1469947A (en) Method of and apparatus for producing double layered hollow articles by injection blow moulding
GB1051892A (en)
GB1392073A (en) Apparatus for pivoting a component or a group of components of an injection mould
GB1152795A (en) Method and apparatus for making Hollow Articles of Organic Plastics Material
ES450759A1 (en) Process for mould release of hollow plastic bodies moulded by blowing by means of a nozzle
CN207059114U (en) A kind of automobile silencing pipe shaping mould
GB1114304A (en) Method and device for forming a hollow plastic article
GB1329257A (en) Method and apparatus for producing a lined thermoplastics container by injection blow moulding
GB1376753A (en) Moulding apparatus for the production of hollow bodies from thermoplastic material
US3870448A (en) Machines for moulding hollow bodies from synthetic resin
US4063868A (en) Mold device for the production of hollow bodies from thermoplastic materials
US4131410A (en) Injection blow-molding machine
CN210190462U (en) Injection mold with pneumatic ejection and push ring
CN209794421U (en) Injection mold
GB1389455A (en) Device for the production of plastics bottles
US3543340A (en) Molding apparatus with individually separable parison mold and neck ring parts
GB1308781A (en) Manufacture of hollow bodies from plastics
GB1467465A (en) Injection blow moulding
CN110355946B (en) Assembled bottle lid injection mold
JPS55114541A (en) Method of releasing plastic product from mold
CN210651677U (en) Injection mold of plastic housing with vent hole groove

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee