ES346256A1 - Improvements in the manufacture of molded articles - Google Patents

Improvements in the manufacture of molded articles

Info

Publication number
ES346256A1
ES346256A1 ES346256A ES346256A ES346256A1 ES 346256 A1 ES346256 A1 ES 346256A1 ES 346256 A ES346256 A ES 346256A ES 346256 A ES346256 A ES 346256A ES 346256 A1 ES346256 A1 ES 346256A1
Authority
ES
Spain
Prior art keywords
plunger
injected
tyre
central
cavity
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
ES346256A
Other languages
Spanish (es)
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.)
VERON
Original Assignee
VERON
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 VERON filed Critical VERON
Publication of ES346256A1 publication Critical patent/ES346256A1/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C2045/167—Making multilayered or multicoloured articles injecting the second layer through the first layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

A mould for the manufacture of toy wheels and like circular articles having a peripheral portion and a central body portion, comprises a slidable plunger by means of which different plastics materials may be injected successively into the mould so that in one plunger position a first plastics material is injected into an annular cavity and in a second plunger position another plastics material is injected into a central cavity embraced by the annular cavity. A toy wheel having a tyre portion of relatively soft plastic material and a central portion of a relatively hard plastic material is injection moulded in a mould 1, 2 with a plunger 5 arranged so that with the plunger in the position of Fig. 1, plastic material is injected through passage 13 to a toroidal cavity 9 to form the tyre portion 14, after which the plunger is lowered to the position of Fig. 3 and a second plastic material is injected through passage 12 to a cavity 8 to provide the central portion. A pin 10 provides a central aperture in the wheel. In the apparatus of Figs. 6-9 (not shown), the plunger (18) has a surrounding sleeve (20) which, when the tyre (14) has been moulded of a material of dark colour, is lowered and a second material of white colour is injected to provide an annulus (23) between the tyre and the central portion (15) of the wheel formed when the plunger is lowered and a third material is injected.
ES346256A 1966-10-13 1967-10-09 Improvements in the manufacture of molded articles Expired ES346256A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69047831A FR1503998A (en) 1966-10-13 1966-10-13 Improvements in the manufacture of molded articles in several different materials

Publications (1)

Publication Number Publication Date
ES346256A1 true ES346256A1 (en) 1969-01-01

Family

ID=9694625

Family Applications (1)

Application Number Title Priority Date Filing Date
ES346256A Expired ES346256A1 (en) 1966-10-13 1967-10-09 Improvements in the manufacture of molded articles

Country Status (4)

Country Link
ES (1) ES346256A1 (en)
FR (1) FR1503998A (en)
GB (1) GB1139020A (en)
NL (1) NL6713653A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1141519B (en) * 1979-04-30 1986-10-01 Rca Corp APPARATUS AND METHOD FOR PRINTING A PREFORM
FR2462261A1 (en) * 1979-07-27 1981-02-13 Quillery Two component injection moulding with semi interlocking melt interface - produced by ram pressure adjacent to the fresh interface
US4512720A (en) * 1983-04-12 1985-04-23 Barry Wright Corporation Pump impellers and manufacture thereof by co-injection molding
JPS61108519A (en) * 1984-11-02 1986-05-27 Yoshida Kogyo Kk <Ykk> Molding method of multi-color synthetic resin molded part, molding equipment and molded part thereof
FR2577692B3 (en) * 1985-02-21 1987-05-07 Optyl Holding PROTECTIVE EYEWEAR FOR EASILY REPLACING LENSES FOR DIFFERENT USES
FR2579129B1 (en) * 1985-03-22 1987-08-28 Cartier Ind SLIDING INJECTION MOLD FOR THE PRODUCTION OF COMPOSITE PARTS
DE3540081A1 (en) * 1985-11-12 1987-05-14 Kunststoff Gmbh Helmbrechts Plastics injection moulding device
AU6757187A (en) * 1986-01-22 1987-07-23 Retief, C.T. Closure for a container
GB8601738D0 (en) * 1986-01-24 1986-02-26 Cassidy Bros Ltd Moulding of solid bodies
DE3703680A1 (en) * 1987-02-06 1988-08-18 Frank Schellenbach METHOD FOR PRODUCING A GAS-TIGHT PLASTIC LOCK FOR BOTTLES AND THE LIKE CONTAINERS
US5447674A (en) * 1987-06-04 1995-09-05 Schellenbach; Frank Method for producing a gas-tight plastic closure for containers
AT400124B (en) * 1992-03-18 1995-10-25 Engel Gmbh Maschbau Method and injection-moulding device for the in-mould lamination of a film with two plastics
FR2751912B1 (en) * 1996-07-30 1998-10-30 Gen Plastics METHOD AND DEVICE FOR OBTAINING A PART IN CYLINDRICAL PLASTIC MATERIAL WITH RELIEF ELEMENTS IN DIFFERENT PLASTIC MATERIAL AND A PART THUS OBTAINED
DE19720486A1 (en) * 1997-05-16 1998-11-19 Bayerische Mas Ind Arno Keller Folding rule made of plastic and process for its production
DE102020113838A1 (en) 2020-05-22 2021-11-25 Siegfried Hofmann Gmbh Molding tool for processing expandable or expanded plastic particles

Also Published As

Publication number Publication date
FR1503998A (en) 1967-12-01
NL6713653A (en) 1968-04-16
GB1139020A (en) 1969-01-08

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