JPS5573535A - Production of formed polystyrene bead foam - Google Patents

Production of formed polystyrene bead foam

Info

Publication number
JPS5573535A
JPS5573535A JP14758678A JP14758678A JPS5573535A JP S5573535 A JPS5573535 A JP S5573535A JP 14758678 A JP14758678 A JP 14758678A JP 14758678 A JP14758678 A JP 14758678A JP S5573535 A JPS5573535 A JP S5573535A
Authority
JP
Japan
Prior art keywords
pipe
foam
mold
chamber
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.)
Pending
Application number
JP14758678A
Other languages
Japanese (ja)
Inventor
Kiyoto Dezuki
Satoru Yamada
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.)
Meiwa Corp
Original Assignee
Meiwa Corp
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 Meiwa Corp filed Critical Meiwa Corp
Priority to JP14758678A priority Critical patent/JPS5573535A/en
Publication of JPS5573535A publication Critical patent/JPS5573535A/en
Pending 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
    • B29C44/3426—Heating by introducing steam in the mould
    • B29C44/343—Heating by introducing steam in the mould by using pipes to direct the steam inside the mould
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To produce a wholly homogeneous formed foam by blowing steam through slender pipes into the portion where the bead filling thickness is larger so as to heat and foam the beads in the cavity evenly. CONSTITUTION:Metal molds 1 and 2 are separated, and a skin member 5 is vacuum-formed using the mold 1 as a vacuum forming mold. With the molds 1 and 2 fastened together, foamable polystyrene beads 4 are filled into a cavity 3 through a pipe 21. Slender pipes 23' are projected into the cavity 3 at least at that portion where the bead filling thickness is larger. With steam introduced into a chamber 22 of the mold 2 through a pipe 24, the beads 4 foams uniformly to be a formed polystyrene bead foam provided integrally with the skin member 5 on its face. With the introduction of steam stopped, cooling water is introduced into the chamber 22 through a pipe 26 and into a chamber 15 of the mold 1 through a pipe 16 to cool the formed foam. Then the molds are separated and the formed body is taken out.
JP14758678A 1978-11-29 1978-11-29 Production of formed polystyrene bead foam Pending JPS5573535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14758678A JPS5573535A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14758678A JPS5573535A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam

Publications (1)

Publication Number Publication Date
JPS5573535A true JPS5573535A (en) 1980-06-03

Family

ID=15433690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14758678A Pending JPS5573535A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam

Country Status (1)

Country Link
JP (1) JPS5573535A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8043539B2 (en) 2002-03-13 2011-10-25 Nissei Company, Ltd. Process for producing biodegradable molded item and molding dies therefor
CN109366850A (en) * 2018-11-01 2019-02-22 丰县建鑫泡沫制品有限公司 Demarcation plate is used in a kind of EPS foaming
WO2019072505A1 (en) * 2017-10-12 2019-04-18 Werkzeugbau Siegfried Hofmann Gmbh Tool
EP3560673A1 (en) * 2018-04-27 2019-10-30 Werkzeugbau Siegfried Hofmann GmbH Tool for processing plastic particulate material for producing a particle foam component

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8043539B2 (en) 2002-03-13 2011-10-25 Nissei Company, Ltd. Process for producing biodegradable molded item and molding dies therefor
WO2019072505A1 (en) * 2017-10-12 2019-04-18 Werkzeugbau Siegfried Hofmann Gmbh Tool
EP3560673A1 (en) * 2018-04-27 2019-10-30 Werkzeugbau Siegfried Hofmann GmbH Tool for processing plastic particulate material for producing a particle foam component
EP4253459A3 (en) * 2018-04-27 2023-11-15 Siegfried Hofmann GmbH Tool for processing plastic particle material for producing a particle foam component
EP4253460A3 (en) * 2018-04-27 2023-11-22 FOX Velution GmbH Tool for processing plastic particle material for producing a particle foam component
CN109366850A (en) * 2018-11-01 2019-02-22 丰县建鑫泡沫制品有限公司 Demarcation plate is used in a kind of EPS foaming

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