1. Introduction

 The computerized embroidery machine is the most advanced embroidery machine at present. It can make traditional hand embroidery achieve high speed and high efficiency. It can also realize that hand embroidery cannot meet the requirements of "multi-level, multi-function, unity and perfection" Reflect a variety of high-tech electromechanical products. In the past, China's embroidery machine market has been monopolized by Japanese machines, and almost no domestically produced machines have been seen. Over the past few years, domestic embroidery machines, such as Mu Chunfeng, have begun to emerge in the market. Domestic embroidery machines have grown and developed in recent years. The quality has been greatly improved, the performance is stable, and the price advantage is strong. The cost-effective advantage is more obvious. Previously, all domestic embroidery machines used Japanese brand servo motors. Now Delta servo breaks the monopoly of Japanese brands with excellent performance and competitive price to enter the embroidery machine industry and reached a long-term supply agreement with a leading domestic computer embroidery machine manufacturer.

2. Composition of embroidery machine equipment

 The embroidery machine system mainly constitutes a computer control system: most of the domestic system is the system of Beijing Xingdahao Company.

Frame shifting system: two sets of stepping motors drive the horizontal and vertical movement of the horizontal plane of the cloth frame, and embroider various patterns up and down with the needle.

 Spindle system: The spindle drives the needle movement and uses an AC servo motor.

 The outline drawing of the embroidery machine is shown in Figure 1:

Figure 1 Outline drawing of embroidery machine

3. Brief introduction of embroidery machine process

 Through cooperation with the embroidery machine control system, the system sends differential pulse signals to control the speed of the servo motor, and achieve the requirements of precise positioning. The servo motor is connected to the main shaft of the embroidery machine through a pulley and then driven by the mechanical crankshaft to drive the embroidery needle of the embroidery machine to reciprocate the up and down embroidery movement. At the same time, the control system collects the code wheel signal of the main shaft encoder to control the frameshift motor to cooperate with the main shaft servo motor Movement to embroider various patterns.

 4. Commissioning considerations

 To ensure the reliable, stable, and correct operation of the servo drive, the following matters should be noted during the installation, commissioning and use of the servo system:

 1) Correct wiring: The encoder cable and motor power cable are standard in the mountain servo, but the signal cable between the servo drive and the controller must be correctly connected during wiring, otherwise the servo will not operate normally;

 2) The servo is correctly set Control mode: Since each machine application is different, the correct setting of the servo control mode is the prerequisite for ensuring the correct operation of the servo;

 3) According to the actual operation effect, the gain parameters are correctly matched, and the mountain servo should not be enabled when the servo is enabled. Set the parameters of the electronic position ring and gear ratio when the motor is running or the motor is running.

 4) Make sure that the motor is well-grounded, and the drive is connected to the equipment chassis. On the one hand to avoid interference, on the other hand to avoid leakage.

 5) The signal wire should be a shielded twisted pair as much as possible. The shielding layer is generally connected to the terminal housing;

 6) Pay attention to the interference problem and avoid the interference of the encoder signal and the control signal. The encoder wire and signal wire should not be bundled with the motor wire and power wire. Together or through a wire slot, try to keep a certain distance.

5. Conclusion

 This embroidery machine equipment fully combines the advantages of the Zhishan K series servos, such as fast response, accurate positioning, and smooth operation. After the customer's trial, the processed products all meet the customer's requirements, and all performance indicators have reached the customer's recognition, while also improving production efficiency and enabling the customer to achieve maximum satisfaction. Zhishan servo is well used in embroidery machines, which not only improves the competitiveness of embroidery machine equipment in the market but also obtains unanimous praise from users.