Blanking method and device into a cutting machine for plate...

Details Blanking method and device into a cutting machine for plate... Blanking method and device into a cutting machine for plate...

2005-07-05

2005-07-05

Goodman, Charles (Department: 3724)

Severing by tearing or breaking

Methods

With preliminary weakening

C225S096500, C225S104000

Reexamination Certificate

active

06913177

ABSTRACT:
Blanking device in a cutting machine for plate elements in a sheet, such as a paper, cardboard or plastic sheet, which had been previously cut into several blanks that are maintained together in the sheet by a number of nicks: a lower tool, an upper tool movable toward the lower tool, a plurality of telescopic pressing devices below the upper tool and outward of the blanks, and plurality of punches aimed to remove blanks from the sheet during vertical motion of punches. The punches each have a suction cup linked to a vacuum or pressure source able to generate a change in the air pressure inside of the suction cup by a distribution network. The suction cups hold the blanks starting before separation of the blanks from the punches. A method to bring the device into operation in the above sequence of operations.

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