Manufacturing process and composite tile of plastic material...

B - Operations – Transporting – 29 – C

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Details

B29C 45/13 (2006.01) B29C 45/06 (2006.01) B29C 45/16 (2006.01) E01C 5/20 (2006.01) E04F 15/10 (2006.01)

Patent

CA 2139949

The present invention concerns a manufacturing process and a related product constituted of a tile in plastic material. The process comprises the following operative stages: crushing a thermoplastic material of recovery; injecting quality plastic material (Fig. 1) into a mould (3) with a primary punch (1A) and a matrix (2) associated to enable the formation of the first layer (4) of the tile (5) between them; rotating (Fig. 2) the mould (3) to reverse the reciprocal position of the matrix (2) and of the primary punch (1A); replacing the primary punch (1A) with a secondary punch (1B) to mark out, in its association with the matrix (2), between the first layer (4), supported by the matrix (2) and the secondary punch (1B), a cavity (6) to contain the thermoplastic material of recovery; injecting thermoplastic material of recovery into the cavity (6) with the formation of a second layer (7) of plastic material arranged inside the tile (5) (Fig. 3).

La présente invention a trait à un procédé de fabrication et à un produit connexe constitué d'une tuile en matière plastique. Le procédé comprend les étapes d'exécution suivantes : concasser une matière thermoplastique de récupération; injecter une matière plastique de qualité (Fig. 1) dans un moule (3) au moyen d'un poinçon primaire (1A) et d'une matrice (2) correspondante pour permettre la formation de la première couche (4) de la tuile (5) entre les deux; retourner (Fig. 2) le moule (3) pour renverser la position réciproque de la matrice (2) et du poinçon primaire (1A); remplacer le poinçon primaire (1A) par un poinçon secondaire (1B) afin de délimiter avec la matrice (2), entre la première couche (4) que supporte la matrice (2) et le poinçon secondaire (1B), une cavité (6) contenant la matière thermoplastique de récupération; injecter la matière thermoplastique de récupération dans la cavité (6) pour former une deuxième couche (7) de matière plastique à l'intérieur de la tuile (5) (Fig. 3).

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