Method and apparatus for compression molding closure liners.

摘要

A method and apparatus for compression molding closure liners wherein a set of tooling including a first assembly (35) and second assembly (36) which are movable toward and away from one another. The first assembly (35) of tooling has a liner forming member and a closure engaging sleeve thereon and the second assembly (36) has a closure supporting pad (41) thereon. A cam (37) is associated with the first assembly of tooling for moving the closure engaging sleeve into engagement with a closure and the liner forming member into position for compression molding a charge of plastic extrudate in the closure when it is supported on the closure supporting pad (41). A gas cylinder (39) is associated with the closure supporting pad providing a predetermined controlled pressure that determines the compression molding force on the plastic. In a preferred mode, a plurality of sets of tooling are provided in circumferentially spaced relation to one another on a turret.