Bandmill with automatic track and strain control system

Details Bandmill with automatic track and strain control system Bandmill with automatic track and strain control system

1991-07-08

1993-01-05

Phan, Hien H.

Cutting

With means to monitor and control operation

83 767, 83817, 83819, B27B 1308

Patent

active

051760550

ABSTRACT:
A bandmill has first and second wheels and an endless saw blade trained about the wheels. The wheels are mounted to rotate about respective axes which lie in a common plane, but the first wheel is adjustable in position relative to the second wheel with respect to both its distance from the second wheel and its orientation relative to the second wheel. A tensioning mechanism is effective to force the first wheel away from the second wheel, while maintaining the axes of rotation of the two wheels substantially parallel, in response to a signal which is provided by a load cell and represents the tension in the saw blade. A wheel tilt mechanism is effective to adjust the angular position of the first wheel relative to the second wheel in response to a signal indicating the path followed by the saw blade, for maintaining the blade on a proper path.

REFERENCES:
patent: 1704428 (1929-03-01), Dempewolf et al.
patent: 2307190 (1943-01-01), Bell
patent: 3838620 (1974-10-01), Baldrey et al.
patent: 4356750 (1982-11-01), Legler et al.
"Feedback Control of the Running Position of a Band Saw with an Actuator", Hattori et al, Mokuzai Gakkaishi vol. 28, No. 12, pp. 783-787, 1982.
"Band Saw Mill of Benjamin & Fischer", Title, Publisher and Publication Date Unknown.
"Bandmill Having Moveable, Tiltable Wheel for Controllably Straining and Tracking Saw" Wijesinghe et al, Mar. 1985.

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