Trim press with counterbalance

Details Trim press with counterbalance Trim press with counterbalance

1988-08-31

1990-01-02

Yost, Frank T.

Cutting

Means to drive or to guide tool

With simple rectilinear reciprocating motion only

83628, 83632, 83 97, 83748, B26D 518

Patent

active

048905240

ABSTRACT:
A trim press for severing articles differentially pressure formed in a thermoplastic sheet comprising a stationary die member and a movable trim die member mounted on a frame for movement toward and away from the stationary trim die member between a spaced apart position and a closed position in which the trim die members engage opposite sides of a sheet to sever the article from the sheet. Dynamically balanced drive mechanism is provided for moving the platen in a to-and-fro path of travel while concurrently oppositely moving a counterbalance weight movably mounted on the frame.

REFERENCES:
patent: 4313358 (1982-02-01), Brown
patent: 4391171 (1983-07-01), Wendt
patent: 4630516 (1986-12-01), Koch et al.

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