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1. WO2005061201 - ARTICLE, METHOD AND APPARATUS OF FORMING EXPANDED PLASTIC MATERIALS IN A STEAM CHEST MOLD

Publication Number WO/2005/061201
Publication Date 07.07.2005
International Application No. PCT/CA2004/002194
International Filing Date 23.12.2004
IPC
B29C 44/34 2006.1
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
34Component parts, details or accessories; Auxiliary operations
B29C 44/58 2006.1
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
34Component parts, details or accessories; Auxiliary operations
58Moulds
CPC
B29C 33/44
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
44with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
B29C 44/3426
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
3415Heating or cooling
3426Heating by introducing steam in the mould
B29C 44/445
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
36Feeding the material to be shaped
38into a closed space, i.e. to make articles of definite length
44in solid form
445in the form of expandable granules, particles or beads
B29C 44/582
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
58Moulds
582for making undercut articles
B29C 44/583
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
58Moulds
583for making articles with cavities
Y10T 428/1352
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
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
13Hollow or container type article [e.g., tube, vase, etc.]
1352Polymer or resin containing [i.e., natural or synthetic]
Applicants
  • DECOMA INTERNATIONAL INC. [CA]/[CA] (AllExceptUS)
  • BUCKLE, Dwight, K. [CA]/[CA] (UsOnly)
  • JENSEN, Danny, Grunsted, Solberg [CA]/[CA] (UsOnly)
  • DERNOVSEK, Robert [CA]/[CA] (UsOnly)
  • CAVE, Alan, C. [CA]/[CA] (UsOnly)
  • ESCEDI, Jimmy, M. [CA]/[CA] (UsOnly)
  • ZAFERA, Antoine [CA]/[CA] (UsOnly)
Inventors
  • BUCKLE, Dwight, K.
  • JENSEN, Danny, Grunsted, Solberg
  • DERNOVSEK, Robert
  • CAVE, Alan, C.
  • ESCEDI, Jimmy, M.
  • ZAFERA, Antoine
Agents
  • BRANDT, Kerstin, B.
Priority Data
60/532,26923.12.2003US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ARTICLE, METHOD AND APPARATUS OF FORMING EXPANDED PLASTIC MATERIALS IN A STEAM CHEST MOLD
(FR) ARTICLE, PROCEDE ET APPAREIL DE FORMATION DE MATIERES PLASTIQUES EXPANSEES DANS UN MOULE EN ENCEINTE A VAPEUR
Abstract
(EN) The invention provides an article, a method and an apparatus of forming expanded plastic materials in a steam chest mold having out of die draw features. This is achieved by means of a cavity pull system. The cavity pull system allows for the provision of molded features outside the die draw and is designed to operate on a cam type system using two stainless steel rods running at a right angle to one another. A gear mechanism allows molded features, e.g. holes, to be formed at any angle on any part design where enough part geometry exists to accommodate the forming features and in the tool for mechanism components. The invention is advantageously employed in the formation of holes outside the die draw in vertically stacked injection tools for energy absorbers used in vehicle bumper fascias. The provision of out of die draw molded features is useful for fascia component locating or attachment.
(FR) L'invention porte sur un article, sur un procédé et sur un appareil de formation de matières plastiques expansées dans un moule en enceinte à vapeur possédant des caractéristiques de filage de sortie de filière. On utilise, en l'occurrence, un système de tirage à cavité. Le système de tirage à cavité permet de former des dispositifs moulés à l'extérieur de la filière et est conçu pour fonctionner sur un système de type à came au moyen de deux tiges en acier inoxydable travaillant perpendiculairement l'une par rapport à l'autre. Un engrenage permet de former des dispositifs moulés tels que des trous à un angle quelconque sur n'importe quel modèle de pièce, dans la mesure où la géométrie de la pièce et de l'outillage le permettent. L'invention convient particulièrement à la réalisation de trous à l'extérieur de la filière dans des outils d'injection en empilement vertical destinés à des amortisseurs de boucliers pare-chocs de véhicules. L'invention convient à la mise en place et à la fixation des composants de boucliers de pare-chocs.
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