Reciprocating travelling shear with plural NC controllers

Details Reciprocating travelling shear with plural NC controllers Reciprocating travelling shear with plural NC controllers

1986-07-30

1988-04-19

Smith, Jerry

Boots, shoes, and leggings

83 71, 83320, B23D 2100, B23D 2500

Patent

active

047394900

ABSTRACT:
A first base supporting a lower blade is reciprocated horizontally by rotation of a first motor in one direction only. A second base supporting supporting an upper blade is reciprocated vertically by rotation of a second motor in one direction only. A signal corresponding to the movement of said work, preset length data and a signal corresponding to the rotation of said first motor are fed to first base numerical control means, and the first base is controlled during forward run of the first base by the first base numerical control means such as to follow the running of the work with the work projected by the preset length from the first base. A signal corresponding to the movement of the work or a signal corresponding to the rotation of the first motor, a signal corresponding to the rotation of the second motor and preset length or preset angle data are fed to the second base numerical control means, and the second motor is controlled by the second base numerical control means with the first base following the running of the work. Through the above control, the work is cut to the preset length by an upper blade supported by the second base and a lower blade.

REFERENCES:
patent: 4196645 (1980-04-01), Shimizu et al.
patent: 4350065 (1982-09-01), Hayashi et al.
patent: 4610281 (1986-09-01), Fuchs et al.

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