Patent ID: 6095788
Filing Date: 2000-08-01
Classification: B29C,B29K

Abstract:
An injection molding apparatus for manufacturing hollow plastic articles, comprising a mold comprising a first part provided with at least one row of a number of cavities located next to each other and a second part provided with at least one row of a number of cores located next to each other while the number of cores is twice the number of cavities, and the cores comprise two sets of cores, each set arranged in a manner corresponding to the position of the cavities, and means are provided for moving the second mold part back and forth in a direction transverse to the direction of opening and closing of the mold, between two different positions, in each of which one of the sets of cores can cooperate with the cavities, while the other set of cores cooperates with a cooling device, neck rings for forming the neck portions of the containers, the cooling device comprises a number of cooling cavities located on the first mold part between the cavities of a row and at both ends of the row of cavities, and the cores of the two sets alternate with each other in a row of cores, each of the cores being provided with a neck ring and means being provided for operating exclusively the neck rings of cores located opposite the cavities in the opened position of the mold.