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1. WO1997015434 - EQUIPMENT FOR MOULDING PRODUCTS OF THERMOPLASTICS MATERIAL, AND THE USE OF SUCH EQUIPMENT IN BLOW-MOULDING APPARATUS

Publication Number WO/1997/015434
Publication Date 01.05.1997
International Application No. PCT/NO1996/000247
International Filing Date 23.10.1996
Chapter 2 Demand Filed 21.05.1997
IPC
B29C 33/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
30Mounting, exchanging or centering
B29C 49/48 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
42Component parts, details or accessories; Auxiliary operations
48Moulds
CPC
B29C 33/306
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
30Mounting, exchanging or centering
306Exchangeable mould parts, e.g. cassette moulds, mould inserts
B29C 49/4823
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
42Component parts, details or accessories; Auxiliary operations
48Moulds
4823with incorporated heating or cooling means
Y10S 425/812
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
425Plastic article or earthenware shaping or treating: apparatus
812Venting
Applicants
  • NORSK HYDRO A.S [NO]/[NO] (AllExceptUS)
  • BOGEN, Oddvar [NO]/[NO] (UsOnly)
  • SCHIA, Jon, Olav [NO]/[NO] (UsOnly)
Inventors
  • BOGEN, Oddvar
  • SCHIA, Jon, Olav
Agents
  • HOFSETH, Svein
Priority Data
95425525.10.1995NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EQUIPMENT FOR MOULDING PRODUCTS OF THERMOPLASTICS MATERIAL, AND THE USE OF SUCH EQUIPMENT IN BLOW-MOULDING APPARATUS
(FR) SYSTEME DE MOULAGE DE PRODUITS EN MATERIAU THERMOPLASTIQUE ET UTILISATION DE CE SYSTEME DANS UN APPAREIL D'EXTRUSION-SOUFFLAGE
Abstract
(EN)
Equipment for moulding products of thermoplastics material where a pre-heated parison (1) is encompassed by reciprocating mould sections (4) for shaping and cooling the parison. The equipment comprises a first plate (8) that is affixed to a reciprocating carrier part (5) at its one side, and that supports a mould plate (10) at its other side. The mould plate (10) is provided with one or more mould elements (3, 12), that may be removable. The first plate (8) is provided with a cooling circuit (6, 17), and a network of bores or channels (7, 9a) that communicates with corresponding bores/channels (9b) in the mould plate, for conducting gas (air) to or from orifice means (13) in the mould plate. The contact surfaces between the mould elements and the mould plate and between the mould plate and the plate (8) may be provided with grooves or recesses (11a, 11b, 11c, 11d), thereby providing a system of channels in the respective contact surfaces. The equipment makes possible that alteration of moulds may be performed rapidly by the use of simple means. The equipment may advantageously be used in conjunction with a blow-moulding apparatus, and, for instance in the production of prototypes and small production series.
(FR)
L'invention a pour objet un système de moulage de produits en matériau thermoplastique dans lequel une paraison préchauffée (1) est enveloppée par des éléments de moulage à va-et-vient (4) où elle subit un formage et un refroidissement. Le système comprend un premier panneau (8) fixé à un support à va-et-vient (5) sur un de ses côtés et supportant un panneau de moulage (10) sur l'autre côté. Ledit panneau de moulage (10) est doté d'un ou de plusieurs éléments de moulage (3, 12) éventuellement amovibles. Le premier panneau (8) est équipé d'un circuit de refroidissement (6, 17) et d'un réseau d'alésages ou de canaux (7, 9a) communiquant avec les alésages ou les canaux correspondants (9b) du panneau de moulage, ce qui permet l'échange de gaz (air) par les orifices (13) ménagés dans le panneau de moulage. Les surfaces de contact entre les éléments de moulage et le panneau de moulage, ainsi qu'entre le panneau de moulage et le panneau (8) peuvent être équipés de rainures ou d'évidements (11a, 11b, 11c, 11d), constituant ainsi un système de canaux sur les surfaces de contact respectives. Ledit système permet de modifier rapidement les moules à l'aide de moyens simples. Il peut avantageusement être utilisé avec un appareil d'extrusion-soufflage et sert, par exemple, à la production de prototypes et à la production en petites séries.
Also published as
DE19681630
NO19981792
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