GB1128326A - Method of and apparatus for the production of moulded articles of expanded polystrene - Google Patents

Method of and apparatus for the production of moulded articles of expanded polystrene

Info

Publication number
GB1128326A
GB1128326A GB47204/64A GB4720464A GB1128326A GB 1128326 A GB1128326 A GB 1128326A GB 47204/64 A GB47204/64 A GB 47204/64A GB 4720464 A GB4720464 A GB 4720464A GB 1128326 A GB1128326 A GB 1128326A
Authority
GB
United Kingdom
Prior art keywords
mould
probes
holes
parts
beads
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
GB47204/64A
Inventor
Gilbert William Thomas Lloyd
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.)
FOLEY PACKAGING AND INSULATION
Original Assignee
FOLEY PACKAGING AND INSULATION
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 FOLEY PACKAGING AND INSULATION filed Critical FOLEY PACKAGING AND INSULATION
Publication of GB1128326A publication Critical patent/GB1128326A/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
    • 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
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

1,128,326. Expanded polystyrene articles. FOLEY PACKAGING & INSULATION Ltd. 18 Nov., 1965 [19 Nov., 1964], No. 47204/64. Heading B5A. Expanded polystyrene articles are produced by partially filling a mould with partially preexpanded beads, inserting a plurality of probes into the mould in one step, and passing steam into the mould through holes in the probes spaced at different locations from the mould face. The probes are preferably withdrawn from the mould cavity while the beads are still expanding. Apparatus, Fig. 7, preferably comprises a two-part mould 2,6 which parts may be clamped together, having an inlet (10, Fig. 6, not shown) for pre-expanded beads, a series of probes 20 each having a plurality of radial apertures 26 along their length, at least one manifold 12 for supplying steam to the probes and holes in the mould-parts to receive the probes. The mould may also have a plurality of lugs 17 of a length to enable complete withdrawal of the probes from the mould cavity without any being removed from the mould part. The probes are preferably plugged at their ends 24. Vents 32 are preferably provided in the upper mould part. Where the product has a high end wall (3, Fig. 3, not shown) both mould parts may have holes to receive two independent series of probes (20, 22).
GB47204/64A 1968-03-06 1964-11-19 Method of and apparatus for the production of moulded articles of expanded polystrene Expired GB1128326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR142587 1968-03-06

Publications (1)

Publication Number Publication Date
GB1128326A true GB1128326A (en) 1968-09-25

Family

ID=8647079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47204/64A Expired GB1128326A (en) 1968-03-06 1964-11-19 Method of and apparatus for the production of moulded articles of expanded polystrene

Country Status (3)

Country Link
AU (1) AU3456968A (en)
FR (1) FR1555352A (en)
GB (1) GB1128326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016859A1 (en) * 1979-04-05 1980-10-15 L 'ISOLANTE S.N.C. di Toffoli Trevisani & C., Method of homogeneously sintering mouldings of expanded polystyrene, apparatus for carrying out this method and moulding produced by the method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693856A (en) * 1985-04-22 1987-09-15 The Dow Chemical Company Method and apparatus for the preparation of foamed thermoplastic articles
MY116615A (en) * 1992-07-13 2004-03-31 Aron Kasei Kk Process for producing expanded plastics with skin and molding apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016859A1 (en) * 1979-04-05 1980-10-15 L 'ISOLANTE S.N.C. di Toffoli Trevisani & C., Method of homogeneously sintering mouldings of expanded polystyrene, apparatus for carrying out this method and moulding produced by the method

Also Published As

Publication number Publication date
AU3456968A (en) 1969-09-11
FR1555352A (en) 1969-01-24

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