Apparatus for transmitting a workpiece

Details Apparatus for transmitting a workpiece Apparatus for transmitting a workpiece

2006-12-05

2006-12-05

Dillon, Jr., Joe (Department: 3651)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S011000, C198S471100, C414S796500, C414S797700

Reexamination Certificate

active

07144009

ABSTRACT:
The apparatus for transmitting a workpiece along a press line includes a support frame; a support frame driving unit; a plurality of air pipes; an air flow forming unit; a plurality of rollers; and a roller driving unit. The plurality of suction cups are provided at a perimeter of each of the rollers A plurality of air exhaust passages extends from an inner surface of each suction cup to a respective air passage are formed in each of the rollers, such that air within a closed space formed between the suction cup and the workpiece is exhausted to the air passage by a difference between a pressure within the closed space and a pressure in the air passage.

REFERENCES:
patent: 3912253 (1975-10-01), Jarman
patent: 3980292 (1976-09-01), Sakurai
patent: 4513957 (1985-04-01), Schaefer, Jr.
patent: 5064183 (1991-11-01), Nishigaki et al.
patent: 5232213 (1993-08-01), Parsons et al.
patent: 5431384 (1995-07-01), Obermiller et al.
patent: 5848785 (1998-12-01), Hardwick et al.

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