FR2424124A1 - DEVICE FOR MANUFACTURING MOLDED PARTS OF THERMOPLASTIC MATERIAL FORMING A FOAM AND CORRESPONDING PROCESS - Google Patents

DEVICE FOR MANUFACTURING MOLDED PARTS OF THERMOPLASTIC MATERIAL FORMING A FOAM AND CORRESPONDING PROCESS

Info

Publication number
FR2424124A1
FR2424124A1 FR7910667A FR7910667A FR2424124A1 FR 2424124 A1 FR2424124 A1 FR 2424124A1 FR 7910667 A FR7910667 A FR 7910667A FR 7910667 A FR7910667 A FR 7910667A FR 2424124 A1 FR2424124 A1 FR 2424124A1
Authority
FR
France
Prior art keywords
foam
thermoplastic material
material forming
molded parts
manufacturing molded
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.)
Withdrawn
Application number
FR7910667A
Other languages
French (fr)
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.)
Haendle & Soehne Maschf Karl
Original Assignee
Haendle & Soehne Maschf Karl
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
Priority claimed from DE19782818535 external-priority patent/DE2818535A1/en
Priority claimed from DE19782843060 external-priority patent/DE2843060A1/en
Application filed by Haendle & Soehne Maschf Karl filed Critical Haendle & Soehne Maschf Karl
Publication of FR2424124A1 publication Critical patent/FR2424124A1/en
Withdrawn legal-status Critical Current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
    • 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

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF DE FABRICATION DE PIECES MOULEES EN MATIERE THERMOPLASTIQUE FORMANT UNE MOUSSE. CE MOULE COMPREND DEUX MOITIES 1 ET 2 CONTENANT CHACUNE UNE CHAMBRE DE VAPEUR 5, 5 AINSI QUE DES ELEMENTS RAPPORTES DE MOULE 11 ET 12 DONNANT LA FORME DEFINITIVE A LA PIECE. POUR FERMER SUR LEUR FACE FRONTALE LES CHAMBRES DE VAPEUR 5, 5, ON A RESPECTIVEMENT PREVU UNE PAROI TRANSVERSALE 8, 8 MOBILE EN DIRECTION AXIALE EN ELOIGNEMENT DE CHAQUE MOITIE DE CHAMBRE DE VAPEUR CORRESPONDANTE 5, 5 POUR FORMER UNE FENTE FAISANT COMMUNIQUER CHAQUE CHAMBRE 5, 5 AVEC L'ATMOSPHERE. L'INVENTION PERMET D'AUGMENTER LA VITESSE DE REFROIDISSEMENT DES MOULES.THE PRESENT INVENTION CONCERNS A DEVICE FOR MANUFACTURING MOLDED PARTS IN THERMOPLASTIC MATERIAL FORMING A FOAM. THIS MOLD INCLUDES TWO HALVES 1 AND 2 EACH CONTAINING A STEAM CHAMBER 5, 5 AS WELL AS MOLD RELATED ELEMENTS 11 AND 12 GIVING THE DEFINITIVE SHAPE TO THE PART. TO CLOSE THE VAPOR CHAMBERS 5, 5 ON THEIR FRONT FACE, A CROSSWALL 8, 8 MOBILE IN AN AXIAL DIRECTION AWAY FROM EACH HALF OF THE CORRESPONDING STEAM CHAMBER 5, 5 RESPECTIVELY PROVIDED FOR A SLIT COMMUNICATING EACH CHAMBER 5 , 5 WITH THE ATMOSPHERE. THE INVENTION ALLOWS TO INCREASE THE COOLING SPEED OF THE MOLDS.

FR7910667A 1978-04-27 1979-04-26 DEVICE FOR MANUFACTURING MOLDED PARTS OF THERMOPLASTIC MATERIAL FORMING A FOAM AND CORRESPONDING PROCESS Withdrawn FR2424124A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782818535 DE2818535A1 (en) 1978-04-27 1978-04-27 Foamable thermoplastic plastics workpiece prodn. - using mould surrounded by openable steam chamber to promote subsequent dissipation of heat
DE19782843060 DE2843060A1 (en) 1978-10-03 1978-10-03 Mould assembly for moulding foamed resin articles - having mould plates backed by vapour chambers comprising parts separable to enhance cooling

Publications (1)

Publication Number Publication Date
FR2424124A1 true FR2424124A1 (en) 1979-11-23

Family

ID=25774361

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910667A Withdrawn FR2424124A1 (en) 1978-04-27 1979-04-26 DEVICE FOR MANUFACTURING MOLDED PARTS OF THERMOPLASTIC MATERIAL FORMING A FOAM AND CORRESPONDING PROCESS

Country Status (3)

Country Link
ES (1) ES479976A1 (en)
FR (1) FR2424124A1 (en)
GB (1) GB2024696B (en)

Also Published As

Publication number Publication date
GB2024696A (en) 1980-01-16
GB2024696B (en) 1982-06-30
ES479976A1 (en) 1980-01-16

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Legal Events

Date Code Title Description
ST Notification of lapse