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1. (WO1997018077) METHOD AND DEVICE FOR THE PRODUCTION OF CONVEX SHELLS MADE OF POLYSTYRENE FOAM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018077 International Application No.: PCT/EP1996/004942
Publication Date: 22.05.1997 International Filing Date: 12.11.1996
Chapter 2 Demand Filed: 16.06.1997
IPC:
B29B 11/02 (2006.01) ,B29C 33/60 (2006.01) ,B29C 51/02 (2006.01) ,B29C 51/08 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11
Making preforms
02
by dividing preformed material, e.g. sheets, rods
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33
Moulds or cores; Details thereof or accessories therefor
56
Coatings; Releasing, lubricating or separating agents
60
Releasing, lubricating or separating agents
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
51
Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
02
Combined thermoforming and manufacture of the preform
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
51
Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
08
Deep-drawing or matched-mould forming, i.e. using mechanical means only
Applicants:
FRIEMUTH, Bernd [DE/DE]; DE
Inventors:
FRIEMUTH, Bernd; DE
Agent:
HOFFMEISTER, Helmut; Goldstrasse 36 D-48147 Münster, DE
Priority Data:
195 42 717.316.11.1995DE
Title (DE) VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON GEWÖLBTEN SCHALEN AUS POLYSTYROL-SCHAUMSTOFF
(EN) METHOD AND DEVICE FOR THE PRODUCTION OF CONVEX SHELLS MADE OF POLYSTYRENE FOAM
(FR) PROCEDE ET DISPOSITIF POUR PRODUIRE DES COQUES BOMBEES EN MOUSSE DE POLYSTYRENE
Abstract:
(DE) Die Erfindung betrifft ein Verfahren zur Herstellung von gewölbten Schalen (2), insbesondere Verkaufsschalen, aus Polystyrol-Schaumstoff. Das Verfahren umfasst folgende Verfahrensschritte: (a) Zerschneiden eines Schaumstoff-Blocks in einzelne platten- oder bahnförmige Rohlinge (1.1 ... 1.n); (b) Auflegen und gereihtes Verschieben der Rohlinge auf einer horizontalen Ebene (E); (c) Herstellen einer Zwischenproduktplatte aus einem Rohling durch Kontaktieren und leichtes Drücken beider Flachseiten des Rohlings mit je einer erhitzten, flachen Stempelfläche (14, 14'), um oberflächiges Verschmelzen zu erreichen; (d) Verformen der Zwischenproduktplatte in einer aus einer beheizten Patrize (20) und Matrize (22') gebildeten Form zu einer Verkaufsschale; (e) Ausstoßen oder Entnehmen der Verkaufsschale.
(EN) The invention relates to a method and a device for the production of convex shells (2), in particular food shells made of polystyrene foam. The method comprises the following steps: (a) cutting a foam block into individual blanks shaped like plates or strips (1.1 ...1.n); (b) mounting and moving the blanks in a row on a horizontal plane (E); (c) producing an intermediate plate from a blank by contacting and lightly pressing both flat surfaces of the blank each with with a heated, flat pressure surface (14, 14') to achieve superficial melting; (d) shaping the intermediate plate in a mould formed from a heated top die (20) and bottom die (22') to form a food shell; (e) ejection or removal of the food shell.
(FR) L'invention concerne un procédé pour produire des coques (2) bombées, notamment des plats en mousse de polystyrène pour produits alimentaires. Ce procédé comprend les étapes suivantes: (a) découper un bloc de mousse en ébauches (1.1...1.n) individuelles, sous forme de plaques ou de bandes; (b) placer les ébauches et les faire glisser en rang sur un plan (E) horizontal; (c) réaliser une plaque intermédiaire à partir d'une ébauche par mise en contact et légère compression de chacune des deux faces plates de l'ébauche avec une surface de pression (14, 14') plate, chauffée, afin d'obtenir une fusion superficielle, (d) faire subir une déformation à la plaque intermédiaire dans un moule composé d'un moule mâle (20) chauffé et d'une matrice (22'), pour former une coque pour produits alimentaires; (e) éjecter ou enlever la coque pour produits alimentaires.
Designated States: AU, BG, BR, BY, CA, CN, CZ, GE, HU, JP, KR, PL, RO, RU, SI, SK, UA, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
AU1996076227