Battery coiling device and coiling control method thereof

Abstract

The invention is applied in the technical field of battery manufacture, and provides a battery coiling control method, which comprises the following steps of: A, calculating a current target material coiling length in real time in each preset time period according to received linear velocity information; B, determining a target angular position to which a coiling pin is required to rotate according to the current target material coiling length and pre-stored information about corresponding relationship between each equilong rotating-coiled material and the angular positions of a servo motor shaft; and C, controlling a servo motor in real time to drive the coiling pin to rotate to a corresponding target angular position in the preset time period according to the determined target angular position by using a servo driver, so that the rotating-coiled material is coiled on the coiling pin at constant linear velocity. When the method is used, the rotating angular position information of the coiling pin is sampled and stored in advance in the whole battery coiling process, and angular velocity at which constant linear velocity rotation can be realized is calculated in actual coiling, so that constant linear velocity coiling effects can be improved.

Description

Technical field [0001] The invention belongs to the technical field of battery manufacturing, and particularly relates to a battery winding device and a winding control method thereof. Background technique [0002] In the process of battery production, it is necessary to wind a variety of different materials such as the battery cathode, anode and separator film into battery cells. figure 1 Shown are the main parts of the constant line speed control of the battery winding device: the roller 11 connected to the encoder, the encoder 12, the winding needle 13 connected to the shaft of the servo motor 14, the servo motor 14, the servo drive 15, which are wound in the unwinding The rotating material on the device (not shown in the figure) is wound by the winding needle 13 through the roller 11, the servo driver 15 is used to drive the servo motor 14 to rotate, the servo motor 14 drives the winding needle 13 to rotate, and the encoder 12 is used for alignment The number of rotations of ...

AI Technical Summary

Problems solved by technology

However, on the one hand, because the winding radius of the winding needle 3 will change with the increase of the transferred material, and the thickness of the material will vary, it is difficult to determine the feedforward variable; on the other hand, in order to meet other performance requirements on the actual machine, There are several rollers between the roller 11 connected to the encoder 12 and the winding needle 13, and the material has a certain degree of elasticity, so that the speed of the material on the winding needle 13 cannot be reflected on the encoder 2 in time, which will affect the control after feedback Effect

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