Rotary cutoff knife

Details Rotary cutoff knife Rotary cutoff knife

1982-11-03

1985-07-23

Schran, Donald R.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83298, 83327, 83328, 242 56R, 242 56B, B26D 156

Patent

active

045302650

ABSTRACT:
An improved rotary knife assembly for severing a moving web in which a support is mounted on a frame for rotary movement around a first axis, and a knife blade is mounted on the support for rotary movement around a second axis generally parallel to and spaced from the first axis. The knife blade is adapted to move from a first position remote from the web to a second position at which it engages and severs the web. Means are provided for concomitantly driving the support and the blade around the axes to move the blade from the first position through the second position and back to the first position.

REFERENCES:
patent: 3956955 (1976-05-01), Marritt
patent: 4122738 (1978-10-01), Granger
patent: 4226149 (1980-10-01), Feldkamper et al.

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