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| How to Choose the Drivers of Embroidery Machine | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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post at:2007-8-10 14:41:16 |
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In recent years the fast development of embroidery industry has pushed up the advance in China’s motor driver production. As part of embroidery machine motors which control the main shaft and frame movement also attract much attention. The quality of motors decides whether the machine can work in good condition. The quality of drivers decides whether the motor can run precisely according to the control system’s instructions and auto-protect in case of emergency. Reliable drivers can guarantee the embroidery quality and ensure the performance of color-change, frame-movement and other instructions. As industry appliance embroidery machines have to run stably in higher precision and worse conditions than ordinary civil products. Embroidery machines are working in many different areas and have many machine types, which require the drivers can suit different environments, resist moisture and static electricity. Earlier because the electromagnetic motors are widely used, Dahao MCB-5 driver card is widely applied and its low-cost and high-reliability is widely recognized in the market. Because the motor precision is not enough, now this product begins to exit market. Dahao has dozens of years of D&R experience in induction driver. Dahao developed FV-01 series induction driver many years ago. FV-01 uses all-digital motor control technology, is curve-optimized towards main shaft features and can be used by all kinds of machines, whose stability is praised by our customers. With induction motor development Dahao now develop FV-03 series induction driver. The improvements of FV-03 include: increasing the output torque of the driver (now the machine can stop precisely even in high-speed status), improving software to decrease low frequency noise and increasing liability. Now the servo motors are getting popular in the market. But now the foreign-brand servo drivers applied in machines are mostly general servo with high price, which adds the machine cost. They also have too many parameters and complex connection. When a series is replaced, parameters need to be reset and adjusted. Delivery time and after-sale service obstacle the widespread use of servo drivers. Now Dahao develops the servo driver SD series specialized for embroidery machine main shaft, and Dahao owns all its intellectual property rights. Since it is specially designed for embroidery machines, machine manufacturers don’t need to set parameters and make signal cables, which makes it plug-and-use and easy adjustment. The advantage of general servo drivers is the stability in high-speed. But the embroidery machine usually runs in middle and low speed and the advantage of the general servo is of no use and wasted. Towards the machine load specialty, Dahao servo is auto-adjusted in software, is optimized for mid/low speed and can suit wide application situations. In South China (the main embroidery machine market) it’s hot and rains much in summer. Dahao servo is strengthened in hardware design according to the severe environment and goes through the EMI test. According to the machine running features some motor parameters are added to provide convenience for manufacturers’ adjustment and their after-sale service. In safety the driver provides auto protection against all kinds of possible accidents, so as to protect operators and drivers. With small type machines appearing in the market now, Dahao has developed low-power servo driver to meet the market requirement. Meanwhile the frame driver has also long time of development experience. Earlier Dahao BBQ 5-phase driver is widely used for its low damage ratio and high stability. But it has large noise and low precision, which can’t help high embroidery quality. So now most machines use stepping motor. At the beginning frame drivers often use MS-01 micro stepping series, which inherit the stable and low-damage features of BBQ series, decrease the work noise and can be updated in software. So it takes a large share in the market. Based on MS-01 Dahao developed MD-02 series. Its hardware is re-designed, it has small size and one driver can drive both X and Y directions of frame. Except keeping the stability of MS series, MD series optimize its software, increase its resistance against interference, has more stable motor running and has new internal structure to increase heat-elimination, decrease failure rate and avoid driver failure because of dust entering. Compared to MS series, motor noise is lower apparently and strict protect circuit guarantees the output/input stability. Redesigned connection display is compatible to MS series, which makes it easier for customers to install and adjust. MD series will be the standard part of the next generation frame driver. With wider use of servo series, machine manufactures often use foreign general motor, which increase the production cost and has complex adjustment procedures. The production of a new machine type must be supported by technicians and such adjustments are specialized and not easy for technology promotion. Dahao SD series frame servo motor is specially designed according to embroidery machine frame’s features. Its performance in low speed is increased, its adjustment process is simple and it has also the easy cable connection, which makes it plug and play. Design of strong resistance against interference and good compatibility with computer control system are the light points of this product. Low-noise design shows the technology advantage of servo motor. This product can keep embroidery quality in high speed running and raise the production efficiency. All servo series will become the main force of the future embroidery machine market.
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