Device and method for cooling and thermal conditioning of a...

Details Device and method for cooling and thermal conditioning of a... Device and method for cooling and thermal conditioning of a...

B - Operations, Transporting

29

C

B29C 45/72 (2006.01)

Patent

CA 2441263

A device (1) for cooling and/or thermal conditioning of hot preforms or parisons (6), in particular of parisons for the production of blow-moulded bottles made of plastic material, limits and/or reduces the deformations of said parisons during cooling by containing the transverse deformations of the end close to the opening (8) of the parison. The device is provided with a tubular portion of prolongation which wraps totally around the parison that rests on its internal surface with one of its sections (9). Described herein is the corresponding method for cooling the parison (6).

L'invention concerne un dispositif (1) destiné au refroidissement et/ou au conditionnement thermique de préformes ou de paraisons (6) chaudes, en particulier de paraisons utilisées pour la production de bouteilles en matière plastique moulées par soufflage. Ce dispositif limite et/ou réduit les déformations de ces paraisons au cours du refroidissement en maîtrisant les déformations transversales de l'extrémité proche de l'ouverture (8) de la paraison. Ce dispositif comprend une partie de prolongement tubulaire qui enveloppe entièrement la paraison reposant sur sa surface interne au niveau de l'une de ses sections (9). L'invention concerne également le procédé correspondant de refroidissement de la paraison (6).

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