GB1313748A - Moulding - Google Patents

Moulding

Info

Publication number
GB1313748A
GB1313748A GB4600869A GB1313748DA GB1313748A GB 1313748 A GB1313748 A GB 1313748A GB 4600869 A GB4600869 A GB 4600869A GB 1313748D A GB1313748D A GB 1313748DA GB 1313748 A GB1313748 A GB 1313748A
Authority
GB
United Kingdom
Prior art keywords
mould
cavity
core
moulding
sept
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
GB4600869A
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.)
Dunlop Holdings Ltd
Original Assignee
Dunlop Holdings 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 Dunlop Holdings Ltd filed Critical Dunlop Holdings Ltd
Publication of GB1313748A publication Critical patent/GB1313748A/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
    • B29C45/14819—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 the inserts being completely encapsulated
    • 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
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14942—Floating inserts, e.g. injecting simultaneously onto both sides of an insert through a pair of opposed gates
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • B29C2045/2714—Gates elongated, e.g. film-like, annular

Landscapes

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

Abstract

1313748 Injection moulding DUNLOP HOLDINGS Ltd 17 Sept 1970 [18 Sept 1969] 46008/69 Heading B5A In a method of moulding a layer of material on to a core 17 located by retractable supporting pins 15 within a mould cavity 11 the material is introduced into the cavity from at least two opposed directions so as to exert balanced pressures on the core. The supporting pins are retracted when sufficient material to support the core has been introduced into the mould. The invention is applied to the injection moulding of golf balls. The material may be injected through a continuous opening 13 extending circumferentially around the cavity and connected by an annular channel 12 to an inlet sprue 19 by way of two runners 20 of equal length. Alternatively the material may be injected through a plurality of openings extending around the cavity. The pins 15 may be retractable by fluid pressure operated pistons 21, by rack and pinion mechanisms or by solenoids. These devices may be actuated by a pressure transducer, or a time switch, or a switch operated after a certain quantity of material has been introduced into the mould. The covered core may be finally shaped in a second mould. The moulding material may be a thermoplastic polyurethane, a polyamide, a polyester, an ionomer, gutta percha, transpolyisoprene or a thermoplastic block copolymer.
GB4600869A 1969-09-18 1969-09-18 Moulding Expired GB1313748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4600869 1969-09-18

Publications (1)

Publication Number Publication Date
GB1313748A true GB1313748A (en) 1973-04-18

Family

ID=10439469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4600869A Expired GB1313748A (en) 1969-09-18 1969-09-18 Moulding

Country Status (3)

Country Link
AU (1) AU1952170A (en)
GB (1) GB1313748A (en)
ZA (1) ZA706007B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670199A (en) * 1985-03-25 1987-06-02 Cibie Projecteurs Method of producing a reflector for a headlight, particularly for an automobile, by two-material injection molding
DE3641881A1 (en) * 1986-12-08 1988-06-16 Hans Kloos Bodies of plastic, rubber and/or metal, in particular skittle balls (bowls), and process for the production thereof
EP0425933A2 (en) * 1989-10-31 1991-05-08 Acushnet Company Retractable pin mold and retractable pin for said mold
GB2279287A (en) * 1993-06-21 1995-01-04 Sumitomo Rubber Ind Molds for forming golf balls
DE4422739A1 (en) * 1994-06-29 1996-01-04 Teves Gmbh Alfred Method for thin-walled encapsulation of an electronic circuit that is precisely aligned with the encapsulated wall, and electronic circuit for this
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
WO2000059704A1 (en) * 1999-04-02 2000-10-12 Acushnet Company Ring gate for retractable pin injection molding
US6643909B2 (en) 2001-04-10 2003-11-11 Bently Nevada Llc Method of making a proximity probe
DE10241569B3 (en) * 2002-09-07 2004-01-29 Jörg Hofmann Process for the production of overmolded core bodies
US20110130216A1 (en) * 2009-12-01 2011-06-02 Taylor Made Golf Company, Inc. Golf ball constructs and related systems
WO2020061174A1 (en) * 2018-09-21 2020-03-26 Dentsply Sirona Inc. Method and apparatus for overmolding gutta-percha onto carriers
CN113817236A (en) * 2021-10-14 2021-12-21 沈阳化工大学 Method for preparing temperature-sensitive flexible sensor from bio-based gutta-percha

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670199A (en) * 1985-03-25 1987-06-02 Cibie Projecteurs Method of producing a reflector for a headlight, particularly for an automobile, by two-material injection molding
DE3641881A1 (en) * 1986-12-08 1988-06-16 Hans Kloos Bodies of plastic, rubber and/or metal, in particular skittle balls (bowls), and process for the production thereof
EP0425933A2 (en) * 1989-10-31 1991-05-08 Acushnet Company Retractable pin mold and retractable pin for said mold
EP0425933A3 (en) * 1989-10-31 1992-01-08 Acushnet Company Retractable pin mold and retractable pin for said mold
AU648685B2 (en) * 1989-10-31 1994-04-28 Acushnet Company Retractable pin mechanism for a mold
EP0633116A1 (en) * 1989-10-31 1995-01-11 Acushnet Company Retractable pin mold and retractable pin for said mold
GB2279287A (en) * 1993-06-21 1995-01-04 Sumitomo Rubber Ind Molds for forming golf balls
GB2279287B (en) * 1993-06-21 1997-02-26 Sumitomo Rubber Ind Molds for forming golf balls
DE4422739A1 (en) * 1994-06-29 1996-01-04 Teves Gmbh Alfred Method for thin-walled encapsulation of an electronic circuit that is precisely aligned with the encapsulated wall, and electronic circuit for this
US6056909A (en) * 1994-06-29 2000-05-02 Itt Manufacturing Enterprises Inc. Casting mold for precisely aligning an electronic circuit with a cast wall and method of using same
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
US6170148B1 (en) 1995-10-13 2001-01-09 Bently Nevada Corporation Method of making an encapsulated transducer with an alignment plug
US5712562A (en) * 1995-10-13 1998-01-27 Bently Nevada Corporation Encapsulated transducer with an alignment plug and method of manufacture
US5685884A (en) * 1995-10-13 1997-11-11 Bently Nevada Corporation Method of making a transducer
US6072312A (en) * 1995-10-13 2000-06-06 Bently Nevada Corporation Encapsulated transducer having a protective sleeve
US5770941A (en) * 1995-10-13 1998-06-23 Bently Nevada Corporation Encapsulated transducer and method of manufacture
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
WO2000059704A1 (en) * 1999-04-02 2000-10-12 Acushnet Company Ring gate for retractable pin injection molding
US6235230B1 (en) * 1999-04-02 2001-05-22 Acushnet Company Ring gate for retractable pin injection molding
US6643909B2 (en) 2001-04-10 2003-11-11 Bently Nevada Llc Method of making a proximity probe
DE10241569B3 (en) * 2002-09-07 2004-01-29 Jörg Hofmann Process for the production of overmolded core bodies
US20110130216A1 (en) * 2009-12-01 2011-06-02 Taylor Made Golf Company, Inc. Golf ball constructs and related systems
WO2020061174A1 (en) * 2018-09-21 2020-03-26 Dentsply Sirona Inc. Method and apparatus for overmolding gutta-percha onto carriers
CN113817236A (en) * 2021-10-14 2021-12-21 沈阳化工大学 Method for preparing temperature-sensitive flexible sensor from bio-based gutta-percha

Also Published As

Publication number Publication date
AU1952170A (en) 1972-03-09
ZA706007B (en) 1971-05-27

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Legal Events

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