Micro-tension control system and control method for GDL fragile material

Abstract

The invention discloses a micro-tension control system for a GDL fragile material. The micro-tension control system comprises a controller, a detection mechanism and an execution mechanism, the controller comprises a power supply module, a CPU module and an analog quantity input and output module which are connected in sequence; the execution mechanism comprises a floating swing roller servo driver, a floating swing roller servo motor and a floating swing roller which are connected in sequence, and further comprises a driving roller servo driver, a driving roller servo motor, a speed reducing mechanism and a driving roller which are connected in sequence, and the detection mechanism comprises a linear potentiometer, a tension roller, a tension sensor and a tension amplifier. Tension is controlled and displayed by the floating swing roller driven by the servo motor, and the problem that existing equipment cannot achieve GDL fragile material micro-tension control is solved. The invention further discloses a micro-tension control method of the GDL fragile material, the tension of the material film is controlled through a double-speed closed loop, the tension control is stable and high in precision, the operation is convenient and fast, time is saved, and the control efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of mechanical automation, relates to a micro-tension control system for GDL brittle materials, and also relates to a micro-tension control method for GDL brittle materials. Background technique [0002] The gas diffusion layer (Gas Diffusion Layer, GDL) is the key material in the electrolyzer or stack, and also an important part of the hydrogen production electrolyzer or fuel cell stack. The brittle base layer material of GDL material is brittle. It is easy to stretch during operation, and it is easy to cause the base layer material to break or tear. Fragile. It is generally required to set the tension at 5-10N, the tension control range is small, and the tension control precision is high. [0003] In traditional coating equipment, the floating swing rollers are all driven by air cylinders, and the linear potentiometer feeds back the position of the swing rollers. There are many problems: ①The position of...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-tension control system for GDL brittle materials. The tension is controlled and displayed by a floating pendulum roller driven by a servo motor, which solves the problem that the existing equipment cannot realize the micro-tension control of GDL brittle materials.

Images