Roving Machine-made Breakthroughs Made In Key Technologies - China Finger Splint

Currently hanging around roving machine spindles up to about 2

,000 units were sold every year, Tianjin Hongda, Hebei Taihang, Jiangsu Hongyuan Company over the three companies accounted for nearly 70% of the domestic market share around. At the same time, Tianjin ambitious, Jiangsu Hongyuan, Hebei Taihang, Dorset Global Machinery (Qingdao), etc. produced by multi-motor drive without formolongi roving machine key technology has reached the international advanced level of similar products.

Four motor control to achieve a breakthrough

Roving machine of modern technological advances are mainly embodied in a four-motor control, effectively eliminating the roving detail to achieve constant tension of the spinning, simplifying the mechanical transmission mechanism, and several other areas.

Four motor control the use of roving machine computer controlled drive system replaces the previous round of transmission and differential cone micro-mechanical drive system. This inverter motor drive system with four wings were driven spindles, rollers, spindles, flights for four systems to achieve synchronization of the four movement system matching, significantly improve yarn quality. Tianjin Hongda Textile Machinery Co., Ltd. developed JWF1418A type roving machine servo control system to achieve digital control of the equipment reached the start point move, parking and other four-motor synchronous control requirements, an effective solution to the switch car details. At the same time also through the use of high-precision machine control system for precise control to achieve constant spinning of the tension. Domestic some new roving machine still applied tension sensor can be automatic, regulating winding tension control system (CCD device) will enable the roving equipment as well as with row after row of spindles difference between the tension and further reduced. For example, Qingdao Scitech Global Textile Machinery Company developed with a tension control system of roving machine, realized the tension of the roving on-line fine tuning, the tension of the past instead of trimming technology that enables roving tension is more constant, more suitable for the spinning process Roving winding tension on the changes in fine-tuning.

A constant winding density is used in modern four-cell drive technology has an advantage of roving machine. Using this technique, roving machine winding speed and the speed between the front roller pinout can always maintain a certain tension value; the same time, the device also according to a yarn, the yarn, yarn, or plant a small relative humidity changes so that roving equipment, and always maintain a constant winding tension.

In addition, four motor roving machine is also a big cut of the mechanical transmission device. With the traditional mechanical transmission roving machine than four motor roving machine is not only a 30% reduction in energy consumption, but also a significant reduction of mechanical failure, improve equipment productivity.

Automatic doffing as the technology matures

At present, the gap between developed and underdeveloped countries much labor. Least developed countries (developing countries) is generally 29 tons of yarn, labor people, the average employment of 10 persons in developed countries, while the U.S. is only 4 tons of yarn, labor people, the gap with the spinning production is inseparable from the degree of automation. Automatic doffing techniques include semi-automatic doffing and automatic doffing two kinds. From the lower labor intensity of workers, reducing employment point of view, automatic doffing device is the future trend of development; but given the current actual situation of China's domestic labor, semi-automatic doffing device may be a period of time is still dominant. At present, the domestic roving semi-automatic doffing device technology has matured. Four-cell transmission roving machine Semi-automatic operation and the old equipment is simple compared to the work of a number of doffing, doffing while saving time, reducing labor intensity. Semi-automatic doffing, is simply to set the length of the winding when the roving, the computer issued a directive stopping, artificial yarn for taking over the tube, Ha Long tendons and then rose to Health head position, take the head to start spinning again. Doffing time generally takes about a whole 3 minutes to 5 minutes, semi-automatic doffing device an effective solution to reset the last cone round of the belt caused by bad quality problems.

In addition to semi-automatic doffing roving machine, there are now some domestic equipment manufacturing enterprises roving automatic doffing machine manufacturing technology has basically matured, the initial conditions of the commercial operation conditions. Automatic doffing technical characteristics is that when spun over a certain length of the roving machine stop automatically when the equipment will automatically doffing, roving automatically take the first, restart the formation of a new round of spinning and other tasks. This technology doffing doffing time is usually 4 minutes to 5 minutes, falling transported to the roving roving will focus on transport systems for shipment. Zinser 670,680 Rawemat type roving machine automatic doffing device as built-in, technology is more advanced. Automatic doffing the maturity of technology, to achieve the roving unmanned operation, the thickness of joint development of equipment has created favorable conditions.

by: gaga

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