Programmable band saw and method of sawing

Details Programmable band saw and method of sawing Programmable band saw and method of sawing

1986-04-14

1989-09-12

Ruggiero, Joseph

Boots, shoes, and leggings

83789, 83 761, 36447409, G06F 1546, B26D 530

Patent

active

048666300

ABSTRACT:
A method of automatic sawing employs an automatic sawing machine having an automatic workpiece shuttle, shuttle and stationary vises, an automatic saw blade feed, one or more incremental motion encoders and a programmable microcomputer. The microcomputer is capable of storing a series of sawing jobs. Each job has a number of sawing steps. Each step in turn defines a sawed workpiece length and (in an embodiment employing a saw blade tilting mechanism) a sawing angle, both of which parameters may be different from those of other steps. The microcomputer receives signals from the motion encoders to determine shuttle and (in a tilt embodiment) tilt position and uses these positions to control shuttle, (in the tilt embodiment) tilt, and vise operation. The microcomputer also corrects each workpiece length with a saw kerf and pivot point correction factor, both modified for sawing angle. The microprocessor receives motion increment signals from the motion encoders which are decoded to determine the direction in which the increment was travelled, and which are decoded in a manner which increases conventional accuracy by four. An operator may simultaneously program one saw job while executing another.

REFERENCES:
patent: 3427518 (1969-02-01), Cloup
patent: 3910142 (1975-10-01), Jureit et al.
patent: 3992614 (1976-11-01), Buss
patent: 4091315 (1978-05-01), Hayashi et al.
patent: 4478120 (1984-10-01), Sugimoto
patent: 4579026 (1986-04-01), Tsune
patent: 4641557 (1987-02-01), Steiner et al.

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