Patent ID: 8015844
Filing Date: 2011-09-13
Classification: C03B

Abstract:
1. A plant for the manufacture of glass stoppers provided with a head part for the closing of bottles, comprising a multi-part mold which determines, in the closed state, the negative contour of the stopper to be manufactured, a feeder system for supplying the mold with molten glass, a multistation press and an arrangement for the removal and for the further handling of the glass stoppers produced, the mold comprising a base part made in one part and having a cut-out corresponding to a first part length of a stopper, wherein the cut-out of the base part is bounded at a base side by a plunger having an ejection function and whose end face is smaller than the base surface of the cut-out; a middle part of two part elements of a mold which are in particular displaceable relative to one another and perpendicular to the longitudinal axis of the mold, which can be coupled in a self-centering manner and which determine a hollow space corresponding to a second part length of a stopper and to at least a main region of the head part in the coupled state and in the state contacting the base part; and an upper part having a central pressing stamp axially displaceable relative to the upper part, said upper part and said central pressing stamp closing the hollow space of the head part for the forming of a tolerance compensating recess in the head part of the stopper, wherein the upper part of the mold forms a planar surface surrounding said tolerance compensating recess on the head part.