Cutting device with a heated cutting wire

Details Cutting device with a heated cutting wire Cutting device with a heated cutting wire

1985-10-25

1987-06-16

Schran, Donald R.

Cutting

With means to control or modify temperature of apparatus or...

Of tool

83 16, 836511, B26D 710

Patent

active

046728724

ABSTRACT:
Disclosed is a cutting device which is horizontally displaceable by means of double-acting guide cylinders and is vertically movable along vertical guide rods by means of a positioning device 10. Before cutting, the cutting device is brought into the preselected position by the positioning device. The heated cutting wire of the cutting device is connected to a current source via sliding contacts resting against ball bearings, over which the cutting wire is guided. The circuit of the current source contains a microswitch, the switch lug of which comes to rest against a plate during the forward movement of the cutting device and switches over the microswitch, thus terminating the heating of the cutting wire. This takes place at the moment when a cutting wire, after cutting through a material guided vertically over a cutting bar, penetrates into a notch in the cutting bar.

REFERENCES:
patent: 3830123 (1974-08-01), Wilgus
patent: 4017012 (1977-04-01), Brock
patent: 4074508 (1978-02-01), Reid
patent: 4077301 (1978-03-01), Brahm
patent: 4430718 (1984-02-01), Hendren

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