Injection mold and method for producing a double walled drinking vessel, the double walled drinking vessel comprising an outer container and an inner container

摘要

The present invention relates to an injection mold for producing a double walled drinking vessel (12), the double walled drinking vessel (12) comprising an outer container (14) and an inner container (12), the injection mold comprising at least one first mold portion (20), at least one second mold portion (22) facing the first mold portion (20), the first mold portion (20) and the second mold portion (22) being axially movable relative to each other, the first mold portion (20) forming at least one first cavity (28) corresponding to the outer shape of the outer container (14) and at least one second cavity (30) corresponding to the outer shape of the inner container (12), the first cavity (28) and the second cavity (30) located concentrically with respect to a central axis (A) of the first mold portion (20), an index plate (40) rotatable around and axially movable along the central axis (A) relative to the first mold portion (20), the index plate (40) comprising at least a first core (46) corresponding to the inner shape of the outer container (14) and at least a second core (48) corresponding to the inner shape of the inner container (12), the first cavity (28) having a first cavity injection gate (32) for injecting a mold material into the first cavity (28) for forming the outer container (14), the second cavity (30) having a second cavity injection gate (34) for injecting a mold material into the second cavity (30) for forming the inner container (12), and the first cavity (28) having a further injection gate (36) for injecting a joint material for joining the outer container (14) and the inner container (12). Moreover the invention relates to an injection molding machine (10) and a method for producing a double walled drinking vessel (12).