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Shaanxi guanghua textile factory

2019-08-16 19:24:46
Detailed introduction:

Card machine is used for processing cotton fiber and chemical fiber, belonging to textile machinery. According to the spinning process, carding is an important process. The preceding process of the card is the combined opening and cleaning machine, and the following process is the drawing frame (general combing process) or the strip winding machine (combing process). Carding machine principle of work before the delivery of cotton (fiber) volume or supplied by hopper opening oil cotton (chemical) layer of the carding and removing impurity, is all a curly block of cotton ring can be basic straight single fibrous, and in the process, get rid of pure flower process legacy of seed, impurities and short pile, and then integrated inside certain specifications cotton sliver, stored in the cylinder, for the use of article and process.


 


In the process of spinning, it is required that the electrical transmission of teaching and engineering equipment should be stable, and the inching, starting and lifting speed should be smooth, so as to make the fiber traction uniform, reduce the weight and the CV value of the strip. In the transmission system of cotton spinning equipment, it is borne by belt and gear. Due to the reason of starting hardness of the motor, in the process of inching and starting, it is inevitable that there will be belt slip, gear impact and other phenomena. In the mechanical transmission gear system, the more gears, the greater the chance of causing gear damage, the application of ac frequency conversion technology can be very good to solve the smooth start, eliminate the impact force of mechanical start, realize stepless speed regulation, meet the production process requirements, improve the yarn quality.


The application of this technology in the case of yarn variety change, do not need to change the gear or pulley, the equipment process speed change only need to be set by the frequency converter can be completed.



The advantages of AMB300 inverter in the system work are highlighted, with the following characteristics:

1) it can make the ordinary asynchronous motor realize stepless speed regulation

2) the starting current is small and the capacity of the power supply equipment is reduced

3) smooth start, eliminate mechanical impact force and extend service life

4) it can protect the motor and reduce the maintenance cost of the motor

5) it has significant node effect


Carding machine in the design of the old machine due to the technical conditions, equipment manufacturing costs, market needs and other factors of the limitation of the inevitable existence of some defects. For example, the electromagnetic clutch in the drive system of some models of carding machine is often shut down due to the high fault, causing fire alarm from time to time, causing certain loss to production efficiency and product quality.

Before the transformation of the usual carding machine doffer in the process of slow turn fast produce thin, serious when the appearance of broken edge, cotton net tension affect the quality of the phenomenon has basically disappeared. To avoid this phenomenon, enterprises with improper operation to make up for the above equipment defects, but to cause a large number of scrap.


Nowadays, frequency control, mechatronics and other electronic technology to replace the traditional mechanical structure, effectively improve the reliability of the whole machine, improve the textile quality and automation, expand the adaptability of varieties, easy to operate. Textile manufacturers also began to invest in the old machine equipment. Through the above description, we can determine that the frequency conversion speed drive technology has many characteristics and advantages, has begun to replace the traditional speed control device, become the development direction of modern electric drive.


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