GB1352954A - Moulding apparatus provided with a cooling system - Google Patents

Moulding apparatus provided with a cooling system

Info

Publication number
GB1352954A
GB1352954A GB143072A GB143072A GB1352954A GB 1352954 A GB1352954 A GB 1352954A GB 143072 A GB143072 A GB 143072A GB 143072 A GB143072 A GB 143072A GB 1352954 A GB1352954 A GB 1352954A
Authority
GB
United Kingdom
Prior art keywords
pipe
mould
valve
cavities
wall
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
GB143072A
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 GB1352954A publication Critical patent/GB1352954A/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
    • B29C44/3415—Heating or cooling
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1352954 Cooling moulds H KERNEN 12 Jan 1972 [14 Jan 1971] 1430/72 Heading B5A At least one wall of a mould is cavitied and includes a plurality. of apertures interconnecting the wall cavity and mould cavity to provide for circulation of steam and coolant. As described, a base 2 supports cavitied side walls 4-6, front and back walls 3 (7) (see Fig. 2, not reproduced) and a lid 8, defining three mould cavities 9. The side walls 4-6 include slits interconnecting the wall and mould cavities. A steam distribution pipe 10 is interconnected with the wall cavities by pipes 11, and joins coolant inlet and outlet pipes 20, 13. The mould cavities 9 are filled with a prefoamed rigid plastics granulate, and closed by hinging and locking of the lid 8 and walls 5 (7). Steam is admitted to the upper end of pipe 10 and passes through a three-way stop valve 15 and into the pipes 11, wall cavities, and mould cavities 9. The outlet pipe 13 is held closed by a shut-off valve 21. When foaming and moulding are complete, a valve 12 cuts off the steam supply and an electrical interconnection activates an extractor 14 to draw air from the outlet 13 as far as the valve 21. The drop in air pressure in a pipe 24 activates a cylinder 23 and opens the shut-off valve 21 so that steam and air are withdrawn from the complete system. Air pressure drop in a pipe 19 activates a cylinder 18 and switches valve 15 to block the upper part of pipe 10 and open the lower part to the inlet 20. Cool air is instantaneously drawn by extractor 14 into the inlet 20, through the lower part of pipe 10, the lower pipes 11, wall cavities, upper part of pipe 10 and outlet 13. After cooling, the mould walls 5 (7) and lid 8 are unlocked and hinged open.
GB143072A 1971-01-14 1972-01-12 Moulding apparatus provided with a cooling system Expired GB1352954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH57771A CH533000A (en) 1971-01-14 1971-01-14 Cooling system on a facility for the production of large solid synthetic foam blocks

Publications (1)

Publication Number Publication Date
GB1352954A true GB1352954A (en) 1974-05-15

Family

ID=4190216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB143072A Expired GB1352954A (en) 1971-01-14 1972-01-12 Moulding apparatus provided with a cooling system

Country Status (4)

Country Link
US (1) US3773445A (en)
CH (1) CH533000A (en)
DE (1) DE2155563C3 (en)
GB (1) GB1352954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903495C2 (en) * 1979-01-30 1985-02-21 Joachim Ing.(Grad.) 7712 Blumberg Teubert Process for the production of molded bodies from foamed plastic, in particular from foamed polystyrene

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911120C2 (en) * 1979-03-21 1985-10-10 Joachim Ing.(Grad.) 7712 Blumberg Teubert Process for producing molded articles from foamed plastic, such as foamed polystyrene
DE3243632A1 (en) * 1982-11-25 1984-05-30 Flewu AG, 9000 St. Gallen METHOD AND DEVICE FOR SINTERING, IN PARTICULAR, DIFFERENT MOLDINGS MADE OF PARTICULARLY DIFFERENT FOAMABLE PLASTICS
CN106113372A (en) * 2016-08-17 2016-11-16 重庆市盛塑包装制品有限公司 Foamed pot
CN106113370A (en) * 2016-08-17 2016-11-16 重庆市盛塑包装制品有限公司 EPP pre-foaming machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156015A (en) * 1961-10-20 1964-11-10 Crown Machine & Tool Company Apparatus for molding a plastic article
US3170010A (en) * 1961-12-28 1965-02-16 American Can Co Method of molding pre-expanded plastic beads
US3424827A (en) * 1963-12-05 1969-01-28 Sinclair Koppers Co Process and apparatus for making shaped cellular articles from expandable thermoplastic resins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903495C2 (en) * 1979-01-30 1985-02-21 Joachim Ing.(Grad.) 7712 Blumberg Teubert Process for the production of molded bodies from foamed plastic, in particular from foamed polystyrene

Also Published As

Publication number Publication date
US3773445A (en) 1973-11-20
DE2155563A1 (en) 1972-07-27
DE2155563B2 (en) 1974-03-21
CH533000A (en) 1973-01-31
DE2155563C3 (en) 1974-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee