Veneer lathe control system

Details Veneer lathe control system Veneer lathe control system

1980-05-13

1981-09-01

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318603, 318608, 144209R, B27L 502, G05B 1924

Patent

active

042874629

ABSTRACT:
A control system for a veneer lathe feeds a knife into a rotating log to peel off a continuous sheet of veneer. When the knife is retracted, the orientation of the log is established and stored so that when the peeling operation is resumed, the knife motion is calculated to engage the log at the discontinuity in the log surface produced during retraction. In addition, when the knife engages the rotating log a compensation factor is momentarily added to the knife motion feed command to alleviate variations in veneer thickness caused by the mechanics of the lathe during impact. A considerable savings of veneer is obtained.

REFERENCES:
patent: 3244206 (1966-04-01), Bossen
patent: 3987350 (1976-10-01), Pomella et al.
patent: 4197888 (1980-04-01), McGee et al.
patent: 4206392 (1980-06-01), Shimajiri et al.

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