Rotary drum shear

Cutting – Cutting motion of tool has component in direction of moving... – Orbital motion of cutting blade

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Details

83341, 83672, B23D 2512

Patent

active

046305149

ABSTRACT:
A rotary drum shear including two drums rotating in the opposite direction to each other and each having a spiral knife on the periphery thereof so that material fed between the drums is cut by engagement of the knives brought by the rotation of the drums in which the knives are formed so that a distance from a rotational center of the drums to the engagement position of the knives is gradually reduced along an axis of the drums from a start point of the engagement of the knives.

REFERENCES:
patent: 4034637 (1977-07-01), Ollery
patent: 4183271 (1980-01-01), Martin

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