Process and apparatus for trimming polymeric parts

Details Process and apparatus for trimming polymeric parts Process and apparatus for trimming polymeric parts

2004-04-05

2010-10-12

Wollschlager, Jeffrey (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Punching article from sheet material

C264S037300, C264S151000, C264S160000, C264S161000, C264S210200, C264S211120, C264S294000, C264S297400, C264S297500, C264S299000, C083S013000, C083S029000, C425S289000, C425S292000

Reexamination Certificate

active

07811492

ABSTRACT:
A process for forming and trimming a part comprises providing a continuous web of polymeric material, thermoforming the continuous web of polymeric material into the desired part, providing a cutter arrangement comprising a blade, providing a platen assembly comprising a closed groove that generally corresponds to the outer shape of the blade and a vacuum system, wherein at least one of the cutter arrangement and the platen assembly is moveable with respect to the at least one other assembly, trimming the part of the continuous web of polymeric material from the remainder of the continuous web of polymeric material via the blade, and removing undesirable trim material formed during the trimming of the part via the vacuum system.

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