A device and method for compression moulding plastic containers

B - Operations – Transporting – 29 – C

Patent

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B29C 43/42 (2006.01) B29C 33/48 (2006.01) B29C 37/00 (2006.01) B29C 43/08 (2006.01) B29C 43/50 (2006.01) B29C 49/06 (2006.01)

Patent

CA 2477579

A compression-moulding press for moulding plastic containers (P) consisting of a moulding cavity formed by a plunger (5), a female mould -(14), and two separable lips (7, 8). A cylinder (16) slides inside a sliding slide (22) to keep the lips (7, 8) closed. The plunger (5) slides inside the cylinder (16), with respect to both the cylinder (16) and the slide (22), when moulding the containers (P). Finally, a method for making plastic containers by means of compression moulding using said device is also described.

L'invention concerne une presse de moulage par compression servant à mouler des récipients en plastique (P). Cette presse de moulage comprend une cavité de moulage formée par un piston (5), un moule femelle (14), et deux lèvres séparables (7, 8). Un cylindre (16) glisse à l'intérieur d'un coulisseau (22) pour maintenir les lèvres (7, 8) fermées. Au cours du moulage des récipients (P), le piston (5) glisse à l'intérieur du cylindre (16), par rapport au cylindre (16) et au coulisseau (22). Enfin, l'invention concerne un procédé de fabrication de récipients en plastique par moulage par compression au moyen dudit dispositif.

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