Punching unit for punching apparatus

Details Punching unit for punching apparatus Punching unit for punching apparatus

1989-06-23

1990-12-25

Watts, Douglas D.

Cutting

Means to drive or to guide tool

With means to connect or disconnect tool and its drive

83698, 83859, B26F 104

Patent

active

049794159

ABSTRACT:
In a punching unit for punching apparatus comprising a support section of a generally C-shape with a material inserting groove formed in the middle, a punch vertically movably and removably mounted in a mounting bore in the side end of the upper half of the support section, a die removably mounted in the side end of the lower half of the support section and having a die opening formed conforming to the outer periphery of a working surface of the punch, and a lifting mechanism removably connected to the die, the working surface of the punch is formed in a shape of a concave slot, and a slug discharge bore is provided communicating with the die opening of the die and with the lower half part of the support section.

REFERENCES:
patent: 2369896 (1945-02-01), Harris et al.
patent: 3165962 (1965-01-01), Bredow
patent: 3972260 (1976-08-01), Hayashi et al.
patent: 4246815 (1981-01-01), Hugo
patent: 4532843 (1985-08-01), Miyama
patent: 4621407 (1986-11-01), Suzuki
patent: 4653365 (1987-03-01), Takasaki et al.
patent: 4682524 (1987-07-01), Achelpohl
patent: 4700441 (1987-10-01), Ikeda et al.
patent: 4794835 (1989-01-01), Fujiyoshi

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