Thermal transfer device

Abstract

Abstract PURPOSE: To ensure an excellent, uniform, continuous transfer for the whole transferred surface even when there is difference in actual transfer width on the surface by providing a specified pressure correction system. CONSTITUTION: A transfer roll 1 is rotatably supported on the tip end of a support frame 3 which can be moved back and forth along a guide 2 by a piston 5 of a hydraulic cylinder 4, one of transferred articles a fitted to a rotary jig 6 is faced to the roll 1, and the jig 6 is connected with a hydraulic motor 10 through a rotary sahft 8 and a drive mechanism 7. The cylinder 4 and the motor 10 are driven by oil pressures fed from an oil pressure source 11 through servo valves 12 and 13. The valves 12 and 13 are controlled by a pressure control system A consisting of a pressure instruction circuit 14, pressure detector 15, strain amplifier 16, and servo- amplifier 17, or by a speed control system B consisting of a speed control instruction circuit 18, speed detector 19, and servo-amplifier 20. The system A is added with a pressure correction system C consisting of a correction controller 21, which generates a pressure correction instruction according to the degree of difference in actual transfer width, and a transfer position detector which confirms the progress of transfer. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Hiroshi Izumihara

Bibliographic Details