With the continuous growth of the computer embroidery machine market in China and the world, the domestic computer embroidery machine industry has developed rapidly. According to relevant forecasts, the demand for computer embroidery machine market in China is expected to increase from 30,000 to 60,000 units in 2004 to 70,000 units in 2010. At the same time, the global demand for computerized embroidery machines will probably be from 6 in 2004. The number of units increased to 100,000 units per year in 2010, with annual sales of 10 billion yuan.
Driven by strong demand, the computerized embroidery machine control system, which is the core component of computerized embroidery machine, has entered a rapid development cycle. There are many brands of related products at home and abroad, and products available for computer embroidery machine manufacturers in the market. There are also many. However, since the computerized embroidery machine is a mechatronics product, different from the simple mechanical products in the past, computer embroidery machine manufacturers should consider more problems when selecting the control system for product design and product matching, in addition to the quality of the control system itself. Considerations must also consider the compatibility of the control system with other components, electromechanical coordination and other issues. The following is a summary of some common basic issues for reference.
Electromechanical cooperation
Since the computer control system is designed and applied according to some specific computer embroidery machine models, the computerized embroidery electronic control system is difficult to adapt to all the changes in the mechanical structure control requirements of the whole machine. The user must specify the order when ordering.
Peripheral matching
The computer embroidery machine is a computer system that drives the embroidery machine movement by controlling the action of peripheral actuators (such as motors, electromagnets, etc.). Therefore, the mechanical and electrical matching relationship directly affects the performance and functional indicators of the computerized embroidery machine.
1, the frame and the drive stepper motor
The weight and inertia of the frame should match the output torque and torque frequency characteristics of the stepper motor. The various indicators of the motor are much larger than the requirements of the frame that it drives, which will result in unnecessary waste and volume increase. Conversely, if the driving force of the stepping motor is insufficient, it will cause problems such as pattern movement, motor overheating, noise increase, and reduced life. Therefore, when selecting the stepping motor that drives the frame, the user should select the appropriate motor according to the size, weight and characteristics of the transmission mechanism.
2. Spindle mechanical system and spindle drive motor
The drive load of the spindle mechanical system is matched to the output power of the spindle drive motor. If the spindle motor output power is less than the spindle drive load, it will directly affect the parking accuracy, running stability and embroidery effect of the whole machine. Therefore, when selecting the spindle motor type (such as servo, slip, variable frequency motor) and the output power of the motor and the drive inertia of the motor, the user needs to fully analyze the transmission characteristics of the spindle system, and estimate the transmission inertia of the spindle drive system, the maximum load. Torque, and then leave a certain margin, select the appropriate spindle motor.
3. Color changing motor and color changing mechanism
The type and parameters of the color change motor should match the type and load of the color change mechanism (the motor concentrated hook line also falls into this category). For the AC motor color change, the AC motor with different power and different output torque (different gear ratio) should be selected according to the number of the whole machine and the number of needles in the needle bar box. For the general model with 1-2 head color change, it is generally limited by the installation position, 42 hybrid stepping motor is used, which puts high requirements on the mechanical transmission, the load can not be too heavy, otherwise it will Can not work normally.
Optional peripheral parameters
Various types of electrical components are described by various parameters. Therefore, carefully select whether the model and parameters of the selected product match the mechanical design. Otherwise it will not be able to meet the requirements of use very well. For example: the same stepper motor of BYGll0, its working current, static torque, frequency characteristics may be different. For the same power servo motor system, its motor drive inertia and shape volume are quite different. The same size of the electromagnet, its inductance, operating voltage, operating current may also be different.
Peripheral quality
The quality of the selected electrical products directly determines whether the computerized embroidery machine can operate stably for a long time.
It turns out that poor quality peripheral electrical products make computer embroidery machines not working properly. Among these are:
1. Stepping motor: low processing precision, material failure, low output torque, large noise, resulting in out-of-step, even locked in operation, losing function.
2, electromagnet: unreasonable assembly, low processing accuracy, poor insulation, serious leakage, directly caused the burning of the circuit board of the electronic control system, so that the embroidery machine smashed.
3, flat signal cable: unreasonable quality, often open circuit, short circuit phenomenon, making the embroidery machine difficult to work stably. Therefore, it is recommended that users purchase high-quality peripheral electrical products to eliminate the various types of faults caused by this.
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