Punch system for perforating plastic sheets

Details Punch system for perforating plastic sheets Punch system for perforating plastic sheets

1984-07-16

1989-05-02

Yost, Frank T.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83658, 83689, B26D 718

Patent

active

048257397

ABSTRACT:
A punch system for rigid and brittle plastic sheet materials such as polycarbonates comprising a punch body mounted in a carrier board and having an upwardly projecting head portion which defines the shape of the hole to be punched, a ring of high durometer urethane mounted on the punch head to serve as a stabilizer and stripper and a disk of high durometer urethane mounted on the under surface of the press platen directly opposite the punch to receive the punch head and the slug of punched material during the punching operation. The punch is used in combination with a steel rule die but can be used either with other punches or alone.

REFERENCES:
patent: 356113 (1887-01-01), Forbes
patent: 553715 (1896-01-01), Long et al.
patent: 2214701 (1940-09-01), Scull
patent: 2815814 (1957-12-01), Taylor
patent: 3130885 (1964-04-01), Fleming
patent: 3656394 (1972-04-01), McCutcheon
patent: 3850064 (1974-11-01), Dwyer

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