GB1526316A - Process and apparatus for the manufacture of mouldings of foamed plastics by a casting process - Google Patents

Process and apparatus for the manufacture of mouldings of foamed plastics by a casting process

Info

Publication number
GB1526316A
GB1526316A GB683476A GB683476A GB1526316A GB 1526316 A GB1526316 A GB 1526316A GB 683476 A GB683476 A GB 683476A GB 683476 A GB683476 A GB 683476A GB 1526316 A GB1526316 A GB 1526316A
Authority
GB
United Kingdom
Prior art keywords
foam
cores
insert
core
demag
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
GB683476A
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.)
Demag Kunststofftechnik Zweigniederlassung der Demag AG
Original Assignee
Demag Kunststofftechnik Zweigniederlassung der Demag AG
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 Demag Kunststofftechnik Zweigniederlassung der Demag AG filed Critical Demag Kunststofftechnik Zweigniederlassung der Demag AG
Publication of GB1526316A publication Critical patent/GB1526316A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/60Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/12Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/123Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1266Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C45/14065Positioning or centering articles in the mould
    • B29C45/14073Positioning or centering articles in the mould using means being retractable during injection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/70Completely encapsulating inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C45/14065Positioning or centering articles in the mould
    • B29C45/14073Positioning or centering articles in the mould using means being retractable during injection
    • B29C2045/1409Positioning or centering articles in the mould using means being retractable during injection using control means for retraction of the centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

1526316 Incorporating inserts in foam mouldings DEMAG KUNSTSTOFFTECHNIK ZWEIGNIEDERLASSUNG DER DEMAG AG 20 Feb 1976 [27 Feb 1975] 06834/76 Heading B5A A method of incorporating an insert 2 in a foam moulding 1 of a window frame element comprises supporting the insert 2 on cores 10, introducing the foamable mixture 1 through one or more lines 8 and withdrawing one or more cores 10 to be flush with the moulding surface at the point in time when the forming foam can support the insert without a substantial shift in position and yet can still seal the space vacated by the core(s). The point in time can be determined by the pressure of the foam in the mould cavity, or by timers connected to the foam feed metering unit 9. The cores may be withdrawn simultaneously or sequentially, e.g. the upper core 10 may be withdrawn first, at a constant, e.g. 20 mm./sec. or variable rate, may have different sizes, and may be adjustably mounted on respective piston rods 14 via a sleeve 15. Each core 10 may be actuated by an hydraulic piston/cylinder arrangement 11 which may be controlled in a common or specific solenoid valve 17 by timers of the metering unit 9. The insert 2 may be of steel and may be prestressed by the cores 10.
GB683476A 1975-02-27 1976-02-20 Process and apparatus for the manufacture of mouldings of foamed plastics by a casting process Expired GB1526316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752508459 DE2508459A1 (en) 1975-02-27 1975-02-27 METHOD AND DEVICE FOR THE CAST MANUFACTURING OF MOLDED PARTS FROM FOAMED PLASTICS

Publications (1)

Publication Number Publication Date
GB1526316A true GB1526316A (en) 1978-09-27

Family

ID=5939934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB683476A Expired GB1526316A (en) 1975-02-27 1976-02-20 Process and apparatus for the manufacture of mouldings of foamed plastics by a casting process

Country Status (6)

Country Link
AT (1) ATA79576A (en)
CH (1) CH576334A5 (en)
DE (1) DE2508459A1 (en)
FR (1) FR2302185A1 (en)
GB (1) GB1526316A (en)
NL (1) NL7601215A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184387A (en) * 1985-12-13 1987-06-24 Daikin Mfg Co Ltd A method of fastening friction facings on a clutch disc
GB2261841A (en) * 1990-07-19 1993-06-02 Balmoral Group Coated articles,method and apparatus for making same
GB2287214A (en) * 1994-02-23 1995-09-13 Matsushita Electric Works Ltd Injection molding-in method of embedding a workpiece
EP1582328A1 (en) * 2002-11-11 2005-10-05 Sunstar Giken Kabushiki Kaisha Method and apparatus for foam molding
JP2014065176A (en) * 2012-09-25 2014-04-17 Yoshii Denshi Kogyo:Kk Method for manufacturing insert molding
WO2014096633A1 (en) * 2012-12-21 2014-06-26 Saint-Gobain Weber Moulding device, method of manufacture, and thermal insulation product obtained

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628703C3 (en) * 1976-06-25 1980-10-09 Maschinen- Und Werkzeugbau Gmbh, 3563 Dautphetal Arrangement and method for the production of profiles, in particular for windows and doors
SE434716B (en) * 1982-12-17 1984-08-13 Thermacore Ab PROCEDURE FOR THE MANUFACTURE OF DOORS AND OTHER BUILDING ELEMENTS WITH DISCOVERY EXPOSURE
US4579700A (en) * 1983-11-07 1986-04-01 Union Carbide Corporation Novel process for making flexible polyurethane cellular products including a novel cell opening technique
FR2556645A1 (en) * 1983-12-19 1985-06-21 Hager Daniel Process and device for injection-moulding a plastic part possessing an insert, and parts obtained thereby
US4683782A (en) * 1986-11-17 1987-08-04 Warburg Richard J Microcentrifuge tube opener
DE3816740A1 (en) * 1988-05-17 1989-11-30 Marianne Wieser METHOD FOR EXACTLY POSITIONING CORES AND / OR MATS IN PLASTIC MOLDED PARTS
GB9015852D0 (en) * 1990-07-19 1990-09-05 Balmoral Group Coated articles,method and apparatus for making same
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
DE19601969A1 (en) * 1996-01-20 1997-07-24 Daimler Benz Ag Functional mat that can be contacted electrically, in particular sensor mat or heating mat
DE10057365A1 (en) * 2000-11-18 2002-05-23 Bayerische Motoren Werke Ag Long fiber injection process for molding a fiber reinforced plastic sandwich structure, involves surrounding an intermediate core layer with LFI material
ES2305288T3 (en) * 2001-04-06 2008-11-01 Covidien Ag RETRACTILE OVERHOLDED INSERT RETAINING DEVICE.
IT1403503B1 (en) * 2010-12-31 2013-10-31 Mazza PROCEDURE AND MOLD FOR MOLDING A RESIN PANEL WITH DROPPED INSERT

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778453A1 (en) * 1968-04-30 1972-10-26 Artilat Nv Mold for the production of foam molded bodies
US3830895A (en) * 1969-11-06 1974-08-20 Salmon K Ass Inc Method for encapsulating an article in molded polyurethane

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184387A (en) * 1985-12-13 1987-06-24 Daikin Mfg Co Ltd A method of fastening friction facings on a clutch disc
GB2184387B (en) * 1985-12-13 1990-07-25 Daikin Mfg Co Ltd A method of fastening friction facings on a clutch disc assembly
GB2261841A (en) * 1990-07-19 1993-06-02 Balmoral Group Coated articles,method and apparatus for making same
GB2261841B (en) * 1990-07-19 1994-01-19 Balmoral Group Coated articles,method and apparatus for making same
GB2287214A (en) * 1994-02-23 1995-09-13 Matsushita Electric Works Ltd Injection molding-in method of embedding a workpiece
US5639403A (en) * 1994-02-23 1997-06-17 Matsushita Electric Works, Ltd. Method of molding a resin article with an embedded workpiece
GB2287214B (en) * 1994-02-23 1998-04-01 Matsushita Electric Works Ltd Injection molding-in method of embedding a workpiece
EP1582328A1 (en) * 2002-11-11 2005-10-05 Sunstar Giken Kabushiki Kaisha Method and apparatus for foam molding
EP1582328A4 (en) * 2002-11-11 2009-11-11 Sunstar Engineering Inc Method and apparatus for foam molding
JP2014065176A (en) * 2012-09-25 2014-04-17 Yoshii Denshi Kogyo:Kk Method for manufacturing insert molding
WO2014096633A1 (en) * 2012-12-21 2014-06-26 Saint-Gobain Weber Moulding device, method of manufacture, and thermal insulation product obtained
FR2999971A1 (en) * 2012-12-21 2014-06-27 Saint Gobain Weber MOLDING DEVICE, METHOD OF MANUFACTURE, AND THERMAL INSULATION PRODUCT OBTAINED

Also Published As

Publication number Publication date
FR2302185A1 (en) 1976-09-24
NL7601215A (en) 1976-08-31
FR2302185B1 (en) 1980-05-16
DE2508459A1 (en) 1976-09-02
ATA79576A (en) 1980-04-15
CH576334A5 (en) 1976-06-15

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Legal Events

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