The market prospect of Taifenglai high-speed tufting machine is promising

In modern society, teeth have become a symbol of health and beauty, and the demand for toothbrushes is gradually increasing. At present, the global annual demand for toothbrushes has exceeded 9 billion, and is increasing at a rate of 10% per year. China has a large population, and the demand for toothbrushes is quite large as a necessity of modern life. Although the toothbrush is small, it is a big commodity with huge consumption and a mature market. With the improvement of the quality of life, the quality of the toothbrush is also improved. The production efficiency and production quality requirements of high-quality health care toothbrush equipment have promoted the equipment development of high-speed toothbrush tufting machines. .



The toothbrush output of China's toothbrush city in Yangzhou, Jiangsu Province - Hangji Industrial Park accounts for 80% of China's toothbrush output, with an annual output of 3 billion. In the past, toothbrush equipment manufacturers mostly used the same brand of single-chip microcomputer control system and servo motor electronic control system, and most of the servo systems used imported products from Japan. In recent years, MX brushmachinery high-speed tufting machine servo products have been increasing year by year in the high-speed toothbrush tufting machine industry with their excellent performance and competitive price advantages.

Brief introduction to the principle of toothbrush hair transplanting machine

The transmission structure of the high-speed toothbrush tufting machine is composed of the main drive shaft and four servo drive shaft systems. The four servo axes are horizontal X axis, vertical Y axis, flap Z axis and molt U axis. The XY two-axis coordinates determine the position of the toothbrush hole, the Z-axis plays the role of changing to the next toothbrush, and the U-axis plays the role of changing the hair color of the toothbrush. When the main shaft motor is running, the four electronically controlled servo axes will run accordingly, and when the main shaft stops, the other four axes will stop accordingly. The speed of the main shaft determines the speed of the hair planting, and the four servo axes respond to the requirements of coordinated drive, otherwise there will be hair removal or uneven hair. Application of Delta Dentsu's high-precision electrical servo control can achieve 1000 times/min hair planting speed, and can achieve jumping hole hair planting.



At present, the structure of the electrical control system of the tufting machine is mainly divided into a single-chip microcomputer control system or a CNC numerical control system. Among them, the single-chip microcomputer control system is mainly based on the integrated supporting services of automation system manufacturers, and the independent research and development of toothbrush equipment manufacturers is supplemented. Most of the CNC numerical control systems with superior performance are Delta's PUTNC-H2P and imported brands such as Europe and Japan. CNC numerical control is mainly to control axis pulse command signal to realize servo drive, usually four-axis control output is realized, Delta's CNC only needs two-axis output to realize, and the servo of the other two axes can be completed independently, toothbrush tufting machine requires system Two-axis interpolation operation can be realized.

The four sets of servo drives are MX brushmachinery's high-speed tufting machine series, with a power of 400W, and the drives have multiple functions to control. The inverter model of the spindle motor is Zhongda's VFD-S, with a power of 400W.

Debugging points The difficulty in the development of the servo solution is the joint debugging of the electromechanical system, which is mainly the adjustment of the servo gain. Among the four servo axes, the X-axis and Y-axis have relatively stable mechanical inertia due to the screw drive structure, so debugging is relatively easy, and the bandwidth can generally be adjusted to more than 130HZ. The Z-axis of the flap is a rotating shaft, and there is centrifugal force in high-speed rotation. If the bandwidth is simply set high, the motor will vibrate when it starts and stops. At this time, the position smoothing filter parameter can be turned on to eliminate the vibration.

Relatively speaking, the mechanical structure of the cam mechanism of the hair-changing U-axis makes debugging more difficult. In addition, the mechanical rigidity of the U-axis is not good. When the motor is running, the inertia ratio changes greatly, and the output current of the motor also changes greatly. Well, this shaft is either vibrating or whistling or unresponsive when the motor is running side to side. For this reason, it is necessary to apply the resonance suppression function of the B series ASDA-B AC servo system.
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