Motor-pulled tape tension control mechanism

Abstract

The invention provides a motor pulling type material belt tension control mechanism which is applied to cell production devices. According to the motor pulling type material belt tension control mechanism, a motor drives a floating rolling cylinder to control the tension of a material belt; a sliding linear rail which is fixed on a base plate is located in a tension buffering area of the material belt; the floating rolling cylinder which is installed on the sliding linear rail is used for tensioning a material belt portion which is arranged inside the tension buffering area; a tensile motor which is a servo motor which is rapid in reaction speed is installed on the base plate and the floating cylinder is pulled to move in a linear mode along the sliding linear rail through a flexible transmission part to keep the tension of the material belt; a position sensor which is a magnetostrictive sensor is used for detecting position values of the floating rolling cylinder on the sliding linear rail and providing information for controlling the buffering length of the material belt portion which is arranged inside the tension buffering area; the torque of the servo motor can be accurately set due to the facts that the frictional force between a motor rotor and the flexible transmission part is small and the movement inertia is small and accordingly the tension of the material belt can be accurately controlled, the running speed of the material belt can be improved, and the cell production ratio can be improved.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular to the technical field of battery cell production equipment, and in particular to a tension control device for a material belt in the battery cell production equipment. Background technique [0002] The tension control device of the material strip in the prior art battery production equipment generally controls the tension of the battery material strip through a cylinder, and the position sensor generally uses a resistive sensor to change the collected non-electrical physical quantity into a resistance change value. This change value is transmitted to the drive controller to control the buffer length of the pole piece, and the pressure of the cylinder controls the tension of the pole piece. [0003] The disadvantages of the existing tension control device are: 1. The friction force of the cylinder and the potentiometer is large, the response is slow, and the tension ch...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the existing tension control device are: 1. The friction force of the cylinder and the potentiometer is large, the response is slow, and the tension change with high frequency cannot be adjusted in time, and the control accuracy is low. The production quality of the core; 3. The running speed of the material belt is low, which affects the production efficiency of the battery core

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