Blank stripping apparatus for rotary die cutters

Details Blank stripping apparatus for rotary die cutters Blank stripping apparatus for rotary die cutters

1982-02-25

1984-10-02

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

With scrap material separation or removal

83116, 83137, 493 82, B26D 718

Patent

active

044745656

ABSTRACT:
Improved blank-stripping apparatus for rotary die cutters of the type which have a die cutting roll, and an anvil roll for supporting paperboard blanks against a cutting rule on the die cutting roll, includes a rotary-cam-timed valve system pressure-actuating one or more pneumatic piston and cylinder assemblies within or adjacent the cutting rule for ejecting scrap radially from the cutting rule in synchronism with rotation of the die cutting roll; after scrap ejection the valve system vents pressure so that contact with a succeeding paperboard blank and/or spring bias easily retracts the plunger to position for pneumatic actuation in the succeeding cycle of operation.

REFERENCES:
patent: 1784487 (1930-12-01), Feeney
patent: 3186274 (1965-06-01), Winkler et al.
patent: 3410183 (1968-11-01), Sarka
patent: 3606824 (1969-05-01), Remington
patent: 3956974 (1976-05-01), Schroter

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