Film thickness control system, film laminating machine including same, and film thickness control method

Abstract

The invention provides a film-laminating thickness control system, a film laminating machine comprising the same, and a film-laminating thickness control method. The film-laminating thickness control system comprises a shell, a light-emitting diode array, middle support parts and a photosensitive device array, wherein the light-emitting diode array, the middle support parts and the photosensitive device array are assembled in the shell in sequence; the light-emitting diode array is used for emitting light; the middle support parts comprise an upper through hole array, a lower through hole array, a slot and a control circuit; the upper through hole array and the lower through hole array correspond to the light-emitting diode array; the slot is formed between and communicated with the upper through hole array and the lower through hole array; a film passes through the slot; the light-emitting diode array is assembled in the upper through hole array; the photosensitive device array is assembled in the lower through hole array and used for converting received light to terminal voltage; the control circuit is used for comparing a standard voltage with terminal voltage of the photosensitive device array and controlling a stepping motor for feeding the film based on a comparison result to obtain suitable film thickness. The film-laminating thickness control system is capable of judging whether the thickness of a polymer film is suitable when the film is fed by the film laminating machine in real time and correspondingly controlling the stepping motor based on a judgment result so as to adjust the thickness of the film to be suitable.

Description

technical field [0001] The invention relates to a coating thickness control system, a coating machine including the same, and a coating thickness control method. Background technique [0002] In the process of developing medical devices, medical polymer materials are widely used, and polymer materials have very good physical properties and biocompatibility during use. In actual use, the use of polymer membranes is the most common, but a relatively big problem in the use of polymer membranes is that the size of the membrane is difficult to control. The reason is that polymer membranes have very good ductility and elasticity. The size of the force will change; due to the fluctuation of the force state, the size of the polymer film will also fluctuate. In view of the fact that it is currently impossible to judge in real time whether the thickness of the polymer film is suitable when the film is fed by the laminating machine, and it is impossible to adjust the film feeding mech...

AI Technical Summary

Problems solved by technology

In actual use, the use of polymer membranes is the most common, but a relatively big problem in the use of polymer membranes is that the size of the membrane is difficult to control. The reason is that polymer membranes have very good ductility and elasticity. The size of the force will change; due to the fluctuation of the force state, the size of the polymer film will also fluctuate

In view of the fact that it is currently impossible to judge in real time whether the thickness of the polymer film is suitable when the film is fed by the laminating machine, and it is impossible to adjust the film feeding mechanism accordingly to adjust the real-time thickness of the polymer film according to the judgment result, so it is impossible to accurately control The real-time thickness of the polymer film, and it brings difficulty to the precise size control of the products using the polymer film

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