METHOD AND DEVICE FOR CUTTING THERMOPLASTIC MATERIALS Russian patent published in 2007 - IPC B26F3/12 B26D1/553 

FIELD: production of construction materials.

SUBSTANCE: method comprises cutting thermoplastic material by means of a tool having two groups of heated cutting wires arranged parallel in each group, heating the wires by current, and setting the cutting tool and/or the thermoplastic material to be cut in motion. Both of the groups of the parallel wires are set in one plane under an angle one with respect to the other. The wire groups are heated alternatively so that when current flows through one group of wires, there is no current flowing in the second group of wires. The device comprises table for positioning the material to be cut and cutting tool provided with two groups of heated cutting wires arranged parallel in each group and connected with a power source for heating. Both of the wire groups are set in one plane and are secured to the frame under an angle to each other. The separating diodes are set from both sides of each wire. The diodes are connected in opposite directions for different groups of the parallel wires.

EFFECT: enhanced efficiency.

9 cl, 5 dwg