What should the automatic winding machine manufacturer do when the parking position of the automatic winding machine is not accurate?

At present, most automatic winding machines in the market use electromagnetic braking to control the parking position of the winding spindle. Generally, automatic winding machine manufacturers will adjust the brake in place when they leave the factory. However, after a period of operation, due to the frequent use and wear of the brake, there will be problems such as abnormal noise of the brake and deviation of the parking position. If it is necessary to wrap the feet around the set point or cross the slot coil, there will be deviation, resulting in the enameled wire not being normally embedded in the slot, so it will be better for users to master certain treatment methods.

First of all, analyze the reasons for the inaccurate parking position: firstly, the parameters of the equipment are improperly set, the rotating speed of the main shaft of the winding machine is very high under normal operation, and there is a great rotating inertia of the main shaft under this state of skeleton load. If it is necessary to change from operation to stop, then a buffering process is needed. This process corresponds to stopping the idle train in the setting parameters of the winding machine, and many users do not pay enough attention to this parameter in use. The number of buffering turns is not enough, and the spindle cannot stop at the designated position, which also increases the impact on the brake. If it runs for a long time, it will affect the normal work of the brake and greatly shorten its life. Secondly, the brake working coil can't work normally. The reason for the abnormal working coil is that various electrical components can't work normally due to the unstable input voltage of equipment. Therefore, the general winding machine has a specified rated working voltage, which will affect the normal working of the winding machine, and the brake pad will also affect the normal stop of the winding machine. The working principle of electromagnetic brake is that after the coil is electrified, the fixed friction plate bulges and the rotating friction plate rub to generate braking force. The brake is a wear part, which will make the friction plate wear to varying degrees due to long-term use, resulting in reduced braking torque. The fixed position of the rotating friction plate will also change correspondingly due to long-term impact, which will also affect braking.

The main shaft system is equipped with brakes. The common types of brakes are electromagnetic, pneumatic, friction and so on. Among them, the electromagnetic brake is widely used in Z, which has the characteristics of large braking torque, fast response time, convenient installation and so on. The controller system generates control signals, and the brakes lock the main shaft after receiving the signals to realize accurate parking. Precise stop of the spindle is realized by using the inertia pre-control of the spindle and DC braking of the frequency converter. This realization principle requires the control system to conduct inertia pre-control of the equipment spindle, cut off the spindle power in advance, and realize accurate stop of the spindle by using inertia and DC braking of the frequency converter.

The common functions of automatic winding machine are preset number of turns, automatic parking, forward and backward winding, automatic slot crossing, etc. In actual use, several points should be paid attention to: firstly, start and stop the idle train; the function of start and stop the idle train is to slow down the operation of the equipment after it is started, in order to reduce the impact on the tension structure and enameled wire, and the general situation can be set to 1-3 turns according to actual needs; the function of stopping the idle train is to slow down the operation of the equipment before the winding sequence is finished. This function can reduce the impact on the brake and make the equipment finish winding smoothly, especially for the winding process that needs accurate positioning. This parameter must be set. According to the different running speed of the equipment, the parameter should also be adjusted accordingly. Generally, it is 2 to 5 turns, followed by the direction of wire arrangement and winding. These two parameters are the setting of the displacement direction of wire arrangement and the direction of spindle rotation respectively.

After being familiar with the functions and parameters of the equipment, the debugging personnel also need to measure the tension adjustment of the winding machine and the data of the winding die. Generally, the larger the wire diameter used for winding, the greater the tension. The tension adjustment range of equipment from different manufacturers is different, and the tension required for using aluminum wire and copper wire is also different. The tension required for aluminum wire with the same wire diameter is smaller than that for copper wire, and the actual wire diameter wound on the die becomes smaller if the tension adjustment is too large. If it is a thin wire, it will be broken and knotted, and if the tension is too small, the coil will be swollen and the cable will be messy. Therefore, tension adjustment is a key setting. Different wire diameters have safe tension ranges. Debuggers should carefully compare them. When measuring the winding die, it is necessary to pay attention to whether the width and height of the die match the winding rod. Too tight will affect the loading and unloading of the die and too loose will lead to the shaking of the die and affect the cable laying effect.

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