초록 ▼

An adjustable cam track for a mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surfaces which together with

An adjustable cam track for a mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surfaces which together with the first and second mold portions defines in a closed position space for receiving plastic material to form at least one molded article. The adjustable cam track includes a guide coupled to the second mold portion, the guide defining a first portion of the adjustable cam track and a cam insert including a second portion of the adjustable cam track defining a point of release of the molded article from the space defining surfaces, the cam insert being adjustably positionable with respect to the guide to adjust the point of release. The first portion of the cam track also includes a ramp to an intermediate portion defining a pre-release position of the space defining surfaces so that the molded article is loosely retained by the space defining surfaces from time the cam follower engages the ramp defining the onset of prerelease until the cam follower reaches the point of full release to facilitate placement of the molded article into an article receiver inserted into the interval between the first mold portion and the molded article at the culmination of the molding cycle.

대표청구항 ▼

1. An adjustable cam track for a mold assembly, the mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surface

1. An adjustable cam track for a mold assembly, the mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surfaces which together with the first and second mold portions defines in a closed position at least one space for receiving plastic material injected therein to form at least one molded article, the second and the third mold portions being movable away from the first mold portion to permit removal of the at least one molded article from the first mold portion, the second mold portion being movable away from the third mold portion to remove the at least one molded article from the second mold portion, the adjustable cam track comprising:a guide coupled to the second mold portion, the guide defining a first portion of the adjustable cam track; a cam follower engaged in the cam track and coupled to the at least one pair of space defining surfaces of the third mold portion for causing relative movement of each pair of space defining surfaces, the cam follower being engaged in the first portion of the cam track when the mold portions are in the closed position, the first portion of the cam track also including a ramp to an intermediate portion defining a prerelease position of each pair of space defining surfaces so that the at least one molded article is loosely retained by the space defining surfaces; and a cam insert including a second portion of the adjustable cam track defining a point of release of the at least one molded article from the space defining surfaces, the cam insert being adjustably positionable with respect to the guide to adjust the point of release with respect to the ramp defining the onset of prerelease.