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US 4,355,530 AGranted
Punching machine for making different products at the same step
OwnerHo L. Cheninventor
Life of this patent
Estimating the term…
Abstract
A press is disclosed having an upper set and a lower set of dies which open and close simultaneously during the operating cycle. An upright body frame member carries the lower die of each of the upper and lower sets of dies. A sliding member is mounted for reciprocal vertical movement and carries the top die for each of the upper and lower dies sets. The sliding member is provided with a recess for receiving an eccentric cam for actuating the slide.
Claims4
A punching machine for making different products in the same cycle of operation comprising
- a driven shaft;
- an eccentric cam driven by said driven shaft;
- a normally upright body having two lead plates,
- a rear member with two sides united with said two lead plates, and
- a bottom seat located at the bottom of said body and having a horizontal section;
- a sliding member mounted for reciprocal vertical movement on said lead plates, said sliding member having a central part with a recess for receiving and being driven by said eccentric cam, said sliding member having a top part with a horizontal portion that is extended above said central part, and said sliding member having vertically aligned holes, an upper hole at the center of the bottom surface of said top part horizontal portion for retaining a top punch and a lower hole in the bottom surface of said sliding member for retaining a bottom punch;
- a first fixture for mounting a top punching-die and mounted at a central location in the top part of said machine body;
- and
- a second fixture for mounting a bottom punching-die and mounted on said bottom seat.
6 more elements
Dependencies are inferred from the claim text.