Leakage preventive device combined with automatic sheet cutting

Details Leakage preventive device combined with automatic sheet cutting Leakage preventive device combined with automatic sheet cutting

1992-10-08

1994-02-01

Jones, Eugenia

Cutting

With means to convey work relative to tool station

With means to press work to work-carrier

83152, 83451, 83941, 1986891, B65G 1518, D06H 700

Patent

active

052824071

ABSTRACT:
The present invention relates to an automatic sheet cutting apparatus which cuts off a sheet like a knit or a woven fabric into a predetermined shape and more particularly to a vacuum air leakage preventive device combined with an automatic sheet cutting apparatus so that a vacuum air can be prevented from leaking through a clearance between a bottom surface of one of those brush-mounting bases aligned in parallel with a pair of endless chains and a top surface of the main body of the automatic sheet cutting apparatus. The vacuum leakage preventive device includes a shielding member on a movable arm which is movable into place relative to the main body and the brush-mounting bases to prevent a break in a vacuum which pulls the material to be cut onto the main body relative to a cutter.

REFERENCES:
patent: 4218125 (1980-08-01), Silversberg
patent: 4322993 (1982-04-01), Stumpf
patent: 4345496 (1982-08-01), Pearl
patent: 4476756 (1984-10-01), Pearl et al.
patent: 4528878 (1985-07-01), Gerber
patent: 4646911 (1987-03-01), Pearl et al.
patent: 4674626 (1987-06-01), Adcock
patent: 5001954 (1991-03-01), Galan et al.

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