GB1353603A - Plastic moulding - Google Patents

Plastic moulding

Info

Publication number
GB1353603A
GB1353603A GB1353603DA GB1353603A GB 1353603 A GB1353603 A GB 1353603A GB 1353603D A GB1353603D A GB 1353603DA GB 1353603 A GB1353603 A GB 1353603A
Authority
GB
United Kingdom
Prior art keywords
pins
cavity
withdrawing
jacks
mould
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
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.)
Sankey Holding Ltd
Aro Plastics Development Ltd
Original Assignee
GKN Sankey Ltd
Aro Plastics Development 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 GKN Sankey Ltd, Aro Plastics Development Ltd filed Critical GKN Sankey Ltd
Publication of GB1353603A publication Critical patent/GB1353603A/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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14631—Coating reinforcements

Landscapes

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

Abstract

1353603 Injection moulding reinforced articles GKN SANKEY Ltd and ARO PLASTIC BUILDING SUPPLIES Ltd 4 Aug 1971 [5 May 1970] 21521/70 Heading B5A A method of moulding, e.g. window-frames, comprises locating a rigid reinforcement 40 in a mould cavity by means of pins 33 projecting into the cavity, injecting plastics material into the cavity to fill it, withdrawing the pins 33 and reducing the size of the cavity to cause the plastics material to fill the spaces formed by withdrawing the pins. The pins 33 are secured to sliders 35 having inclined bores 36 in which pins 37 are slidably received. The pins 37 are secured to blocks 38 connected to the pistonrods 39 of hydraulic jacks 13. When the blocks 38 are moved downwardly by the jacks 13 the sliders 35 will be moved apart, thus withdrawing the pins 33. During injection, clearance spaces 45, 46 are maintained between parts 19, 17 and 14 by means of wedge members 22. When the pins 33 are retracted, the wedge members 22 are also retracted by jacks 18, and the clearances 45, 46 disappear, whereby an upper die member 27 is moved towards a lower die member 28 and the size of the mould cavity is reduced. An ejector pin 30 operated by a jack (not shown) is used to support the reinforcement 40 when first placed in the mould.
GB1353603D 1970-05-05 1970-05-05 Plastic moulding Expired GB1353603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2152170 1970-05-05

Publications (1)

Publication Number Publication Date
GB1353603A true GB1353603A (en) 1974-05-22

Family

ID=10164326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1353603D Expired GB1353603A (en) 1970-05-05 1970-05-05 Plastic moulding

Country Status (1)

Country Link
GB (1) GB1353603A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355984A1 (en) * 1976-06-25 1978-01-20 Masch & Werkzeugbau Gmbh PROFILE, PROCESS AND DEVICE FOR ITS MANUFACTURING AND IMPLEMENTATION
US4470786A (en) * 1981-07-28 1984-09-11 Omron Tateisi Electronics Co. Molding apparatus with retractable preform support pins
EP0172149A2 (en) * 1984-07-18 1986-02-19 Turessons Metall Ab A clothes-hanger and a method and a machine for its manufacture
US4702873A (en) * 1983-03-25 1987-10-27 Ceraver, S.A. Method of manufacturing a composite insulator
EP0496331A2 (en) * 1991-01-23 1992-07-29 Sumitomo Electric Industries, Ltd. Mold die for manufacturing optical module and manufacturing method using the same
US5182032A (en) * 1990-07-09 1993-01-26 Paige Manufacturing Company Incorporated Apparatus for plastic injection overmolding
US5275765A (en) * 1991-01-23 1994-01-04 Sumitomo Electric Industries, Ltd. Method of manufacturing an optical module using a mold die
EP0633116A1 (en) * 1989-10-31 1995-01-11 Acushnet Company Retractable pin mold and retractable pin for said mold
US5472655A (en) * 1988-11-16 1995-12-05 Fuji Photo Film Co., Ltd. Method and apparatus for molding magnetic tape cassette
US5685884A (en) * 1995-10-13 1997-11-11 Bently Nevada Corporation Method of making a transducer
US5712562A (en) * 1995-10-13 1998-01-27 Bently Nevada Corporation Encapsulated transducer with an alignment plug and method of manufacture
US5770941A (en) * 1995-10-13 1998-06-23 Bently Nevada Corporation Encapsulated transducer and method of manufacture
US5818224A (en) * 1995-10-13 1998-10-06 Bently Nevada Corporation Encapsulated transducer with an integrally formed full length sleeve and a component alignment preform and method of manufacture
US6643909B2 (en) 2001-04-10 2003-11-11 Bently Nevada Llc Method of making a proximity probe

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355984A1 (en) * 1976-06-25 1978-01-20 Masch & Werkzeugbau Gmbh PROFILE, PROCESS AND DEVICE FOR ITS MANUFACTURING AND IMPLEMENTATION
US4470786A (en) * 1981-07-28 1984-09-11 Omron Tateisi Electronics Co. Molding apparatus with retractable preform support pins
US4702873A (en) * 1983-03-25 1987-10-27 Ceraver, S.A. Method of manufacturing a composite insulator
EP0172149A2 (en) * 1984-07-18 1986-02-19 Turessons Metall Ab A clothes-hanger and a method and a machine for its manufacture
EP0172149A3 (en) * 1984-07-18 1988-01-13 Turessons Metall Ab A clothes-hanger and a method and a machine for its manufacture
US5472655A (en) * 1988-11-16 1995-12-05 Fuji Photo Film Co., Ltd. Method and apparatus for molding magnetic tape cassette
EP0633116A1 (en) * 1989-10-31 1995-01-11 Acushnet Company Retractable pin mold and retractable pin for said mold
US5182032A (en) * 1990-07-09 1993-01-26 Paige Manufacturing Company Incorporated Apparatus for plastic injection overmolding
EP0496331A2 (en) * 1991-01-23 1992-07-29 Sumitomo Electric Industries, Ltd. Mold die for manufacturing optical module and manufacturing method using the same
US5275765A (en) * 1991-01-23 1994-01-04 Sumitomo Electric Industries, Ltd. Method of manufacturing an optical module using a mold die
EP0496331A3 (en) * 1991-01-23 1993-02-24 Sumitomo Electric Industries, Ltd. Mold die for manufacturing optical module and manufacturing method using the same
US5685884A (en) * 1995-10-13 1997-11-11 Bently Nevada Corporation Method of making a transducer
US5712562A (en) * 1995-10-13 1998-01-27 Bently Nevada Corporation Encapsulated transducer with an alignment plug and method of manufacture
US5770941A (en) * 1995-10-13 1998-06-23 Bently Nevada Corporation Encapsulated transducer and method of manufacture
US5818224A (en) * 1995-10-13 1998-10-06 Bently Nevada Corporation Encapsulated transducer with an integrally formed full length sleeve and a component alignment preform and method of manufacture
US6072312A (en) * 1995-10-13 2000-06-06 Bently Nevada Corporation Encapsulated transducer having a protective sleeve
US6131270A (en) * 1995-10-13 2000-10-17 Bently Nevada Corporation Method of manufacturing an encapsulated transducer with an integrally formed full length sleeve and a component alignment preform
US6131267A (en) * 1995-10-13 2000-10-17 Bently Nevada Corporation Method of manufacture of an encapsulated transducer
US6170148B1 (en) 1995-10-13 2001-01-09 Bently Nevada Corporation Method of making an encapsulated transducer with an alignment plug
US6643909B2 (en) 2001-04-10 2003-11-11 Bently Nevada Llc Method of making a proximity probe

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees