Patent ID: 6488884
Filing Date: 2002-12-03
Classification: B29C

Abstract:
A process for the production of hollow bodies from thermoplastic material by means of blow molding of preforms using a closing support structure which has at least first and second blow molding molds each comprising at least first and second mold portions reciprocatable between an open condition in which they are at a spacing from each other and a closed condition in which they define a mold cavity, a common drive means for producing said reciprocating movement, a drive member engaged by the drive means, a first carrier member engaged by the drive means and carrying a mold portion, a second carrier member carrying another mold portion and connected to the drive member, at least one further carrier member arranged displaceably in the opening and closing direction between the first carrier member and the second carrier member, said at least one further carrier member having first and second sides and carrying at each of the sides thereof a respective mold portion and each of said mold portions being co-operable with a mold portion carried by a respective adjacent carrier member to form a blow molding mold, for each of the blow molding molds a means operable to lock the respective blow molding mold in the closed condition thereof, the closing support structure further including at least one synchronisation means by which the closing and opening movements of the portions of the respective mold are effected symmetrically.