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GB1414465A - Moulding plastics - Google Patents

Moulding plastics

Info

Publication number
GB1414465A
GB1414465A GB5871072A GB5871072A GB1414465A GB 1414465 A GB1414465 A GB 1414465A GB 5871072 A GB5871072 A GB 5871072A GB 5871072 A GB5871072 A GB 5871072A GB 1414465 A GB1414465 A GB 1414465A
Authority
GB
United Kingdom
Prior art keywords
die
mould
moulded
liners
article
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
GB5871072A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1414465A publication Critical patent/GB1414465A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • B29C33/3878—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts used as masters for making successive impressions
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/428—Mould constructions; Mould supporting equipment
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2823/00—Use of polyalkenes or derivatives thereof as mould material

Landscapes

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

Abstract

1414465 Moulding moulds from foam casting M LADNEY Jnr 20 Dec 1972 [29 Dec 1971] 58710/72 Heading B5A [Also in Division B3] A mould 66, Fig. 6, for making a polyurethane foam article 91 comprises a thermoplastics liner 54 injection moulded in metal dies 30, 40, Fig. 4. The die 30 is made by casting metal against an epoxy resin or ceramic cast 20 of a wooden model 10 of the desired shape. The surface of the die 30 is textured before assembly with a similar die 40. Polyethylene or polypropylene is injected through a passage 52, and recesses 44 form projections 64 on the moulded liner 54. Two liners 54 and 72 are fitted into mould members 68, 70, the projections 64 forming linings for vent holes 76. Beads 60, 86 on the peripheral lips 58, 82 of the liners engage to seal the mould, or (Fig. 9, not shown) a silicone rubber gasket is provided. Preferably one bead 60 is longer than the other and is deformed by it (Fig. 7, not shown) when heating and clamping pressure are applied. An integral hinge may be moulded into the lining member to permit flexing for removal of the foam article and a polyurethane paint may be sprayed on to it to form a skin on the article.
GB5871072A 1971-12-29 1972-12-20 Moulding plastics Expired GB1414465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21324471A 1971-12-29 1971-12-29

Publications (1)

Publication Number Publication Date
GB1414465A true GB1414465A (en) 1975-11-19

Family

ID=22794308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5871072A Expired GB1414465A (en) 1971-12-29 1972-12-20 Moulding plastics

Country Status (6)

Country Link
JP (3) JPS4873472A (en)
CA (1) CA994067A (en)
DE (1) DE2263584C3 (en)
FR (1) FR2169887B1 (en)
GB (1) GB1414465A (en)
IT (1) IT974020B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018417A1 (en) * 1999-01-07 2000-07-12 Shell Internationale Researchmaatschappij B.V. Coated mould for making polyurethane foams
CN103934948A (en) * 2013-01-23 2014-07-23 谢孟峰 Manufacturing method of PU molded product
US20140202616A1 (en) * 2013-01-18 2014-07-24 Menq-Fong Shieh Manufacturing Method of PU Molded Product
EP2923813A1 (en) * 2009-06-03 2015-09-30 Otto Wiesmayer Mould insert for a mould, method for producing a mould and moulded article
CN114852239A (en) * 2022-04-28 2022-08-05 岳阳市爱达兴智能科技有限公司 Improved structure of folding mechanism for vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8411550D0 (en) * 1984-05-04 1984-06-13 Stylo Matchmakers Int Injection moulding apparatus
US4956141A (en) * 1989-04-07 1990-09-11 Libbey-Owens-Ford Co. Molding process utilizing a mold release membrane
CN102240896A (en) * 2010-05-12 2011-11-16 南通超达机械科技有限公司 Processing technology of parting face of foaming mould for automobile interiors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018417A1 (en) * 1999-01-07 2000-07-12 Shell Internationale Researchmaatschappij B.V. Coated mould for making polyurethane foams
EP2923813A1 (en) * 2009-06-03 2015-09-30 Otto Wiesmayer Mould insert for a mould, method for producing a mould and moulded article
US9630350B2 (en) 2009-06-03 2017-04-25 Otto Wiesmayer Molded insert for a molded part mold, method for producing a molded part and molded part
EP2437921B1 (en) * 2009-06-03 2021-11-17 Otto Wiesmayer Method for producing a molded part
US20140202616A1 (en) * 2013-01-18 2014-07-24 Menq-Fong Shieh Manufacturing Method of PU Molded Product
CN103934948A (en) * 2013-01-23 2014-07-23 谢孟峰 Manufacturing method of PU molded product
CN114852239A (en) * 2022-04-28 2022-08-05 岳阳市爱达兴智能科技有限公司 Improved structure of folding mechanism for vehicle
CN114852239B (en) * 2022-04-28 2024-03-29 岳阳市爱达兴智能科技有限公司 Folding mechanism with improved structure for vehicle

Also Published As

Publication number Publication date
JPS4873472A (en) 1973-10-03
DE2263584B2 (en) 1978-12-14
FR2169887A1 (en) 1973-09-14
JPS56133142A (en) 1981-10-19
FR2169887B1 (en) 1976-10-29
IT974020B (en) 1974-06-20
DE2263584A1 (en) 1973-09-06
CA994067A (en) 1976-08-03
JPS5441960A (en) 1979-04-03
DE2263584C3 (en) 1979-08-16

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Legal Events

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