Film coiling system of heat transfer machine

Abstract

The invention discloses a film coiling system of a heat transfer machine. A film coiling carrying shaft, a film coiling roller, a film pressing wheel and a film reeling wheel shaft are stopped and positioned on a machine frame in the axial direction in a rotatable way, a photoelectric switch, a steering shaft group and a step motor are fixedly arranged on the machine frame, the photoelectric switch can sense optical markers on a transfer printing film, the outer wall of the film pressing wheel in the radial direction is tightly butted against the outer side wall of the film coiling roller in the radial direction, the motive power output end of the step motor drives the film coiling roller and the film reeling wheel shaft to rotate in the same direction at the same speed, the photoelectricswitch transfers sensing signals to a programmable logic controller, the programmable logic controller controls the starting and the stopping of the step motor, and a transfer printing film tensioning device makes the transfer printing film maintain the tensioning state. The invention uses the programmable logic controller for controlling the step motor to drive the film coiling roller, the starting and the stopping of the step motor are in pure electric control without mechanical friction and hysteresis phenomena, so the operation speed is stable, the reliability is high, the service life islong, the maintenance is not needed, the transfer printing film always maintains the tensioning state, and the positioning of the photoelectric switch is precise.

Description

technical field [0001] The invention relates to an auxiliary system of a heat transfer printing machine, in particular to a film rolling system of a heat transfer printing machine. Background technique [0002] At present, the film rolling device in the thermal transfer machine on the market includes a film roll bearing shaft with a radial compression spring, a photoelectric switch, a steering shaft, a film roll drum, a film roll clutch brake motor (with a gearbox, an electromagnetic clutch and Electromagnetic brake single-phase micro AC motor), film collecting device and controller (relay control system), its working process is as follows: the transfer film is drawn out from the film roll mounted on the film roll bearing shaft, and the transfer film bypasses the steering The shaft group enters the roll film roller, and the transfer film is finally wound on the take-up roller of the film take-up device. The photoelectric switch is fixed on the thermal transfer machine, and t...

AI Technical Summary

Problems solved by technology

Due to the influence of the action response time of the electromagnetic clutch and electromagnetic brake, mechanical wear, slipping, and the tightness of the compression spring of the film roll bearing shaft, etc., the film roll is unstable, the positioning is inaccurate, and the product is often scrapped, and the electromagnetic clutch and electromagnetic brake are affected. Influenced by the mechanical structure itself, the service life is limited and the maintenance cost is high

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