Upper tool for a press

Details Upper tool for a press Upper tool for a press

1996-04-05

1997-12-30

Peterson, Kenneth E.

Cutting

With product handling means

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

83136, B26F 102

Patent

active

057017905

ABSTRACT:
In an upper tool, a stripper plate (35) is disposed movably up and down at a lower end portion (13a) of a punch guide (13) for housing a punch (27) also movably up and down, via a shock damping member (33). Further, the shock damping member (33) is formed into an annular body disposed so as to enclose an annular gap (X) formed between the lower end portion (13a) of the punch guide (13) and the upper surface (65) of the stripper plate (35). The upper tool can reduce noise sound generated during punching processing, and further prevent chips produced during punching processing from adhering onto the workpiece and the shock damping member, thus protecting the workpiece from being scratched by the chips and further improving the life time of the shock damping member.

REFERENCES:
patent: 3622067 (1971-11-01), Bucy
patent: 3733946 (1973-05-01), Davis
patent: 4007653 (1977-02-01), Cady
patent: 4012975 (1977-03-01), LaLone
patent: 4048889 (1977-09-01), Finley
patent: 4631996 (1986-12-01), Magnuson
patent: 5176057 (1993-01-01), Chun et al.
patent: 5410926 (1995-05-01), Saito
patent: 5553523 (1996-09-01), Saito
"Eleven ways to use die springs" Dec. 1949.

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