B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/533
B29C 49/32 (2006.01) B29C 33/22 (2006.01) B29C 49/56 (2006.01)
Patent
CA 1201860
ABSTRACT A method and apparatus are disclosed for transferring blanks, plastic parisons or other articles to be molded in a sealed cavity. One embodiment includes mold sections which are closeable along a first axis to form a mold cavity and which are movable along a second axis from a first station where the mold sections may receive a mold- able blank to a second station where the blank may be molded under pressure. Optional biasing means may be included to hold the mold sections sufficiently close together to hold the blank in the mold cavity as the mold sections move from the first station to the second station. A clamp, or other pressure applying means, exerts a final closing pressure on the mold sections at the second station for molding the blank under pressure. The clamp is sta- tionary in relation to the first and second stations so that the mold sections can move relative to the clamp along the second axis. In another embodiment the method includes the steps of transporting mold sections generally along a first axis to a first station; moving the mold sections generally along a second axis while at the first station to close the molds around a blank sufficiently to encapsu- late the blank in an interior cavity formed by the mold sections; transporting the blank in the mold cavity to a second station by moving the closed mold sections along said first axis; and exerting a force on the mold sections at the second station to form a proper seal for molding, the force being exerted from a source which is stationary in relation to the first and second stations.
420047
Hoover Universal Inc.
Meredith & Finlayson
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