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Under the current situation of high raw material prices and soaring labor costs, the profit margins of domestic spinning companies are generally low. Therefore, spinning enterprises need to rely on modern production equipment, under the premise of ensuring the continuous improvement of product quality and the development of new varieties, to achieve the goal of reducing the amount of cotton, cotton grade and ten thousand spindle labor and improving the profit margin of unit products, which also puts forward a new direction for spinning equipment: operation automation, intelligent operation and innovation and diversification.
At the 2012 China International Textile Machinery Exhibition and ITMA Asia Exhibition, which ended not long ago, the exhibition of new cotton spinning equipment laid a solid foundation for the development of the cotton textile industry. It can be seen from the exhibition that the complete set of cotton spinning equipment has a development trend in the direction of front spinning to large roll loading, shortening the technological process, less spinning machines, more spindles, automation and continuous production. It has developed in the direction of integration of machinery, electricity, gas and instruments, digitization, intelligence and informatization in technology, and has effectively applied modern advanced technologies such as online monitoring and information collection and analysis. As a part of spinning, the separation device is developing towards the direction of high efficiency and high yield. The new type of fiber removal machine adopts advanced CCD camera to scan the fiber channel, uses polarized light and ultraviolet light to detect the channel area, and only uses a small number of pixels to obtain reliable inspection results.
High quality and high efficiency of spinning process
The advanced cleaning and carding equipment adopts the new concepts of opening, cleaning and combing, and applies new technologies such as modularization, integration, online monitoring, etc., with flexible combination and strong suitability for spinning, realizing the short process of cleaning flowers, high yield, high quality and large volume of carding. The new comber is optimized in motion and mechanical structure, research and innovation in combing design and process, and the degree of automation, speed, reliability and combing spinning quality have been improved.
In addition, saving raw cotton has also become the focus of attention, cotton recycling means cost savings. In the integrated device, the effective fiber reuse in the clearing thread and the cotton drop of the carding machine, especially in the case of today's high price of raw cotton, can greatly improve the overall efficiency of the spinning mill.
Spinning technology is more automated
With the advancement of technology, the reliability and automation level of the multi-motor-driven suspended spindle roving machine have been significantly improved, and the automatic collective doffing technology has become more mature. The use of computer control technology, programmable controller, servo control and automatic frequency conversion technology has enabled the entire spinning process Realized digital control. Coupled with the automatic roving transportation system, it makes the automatic completion from doffing to tube change, raw head and driving, and realizes automatic spinning.
The drawing frame continues to develop in the direction of high speed and large capacity. The realization of automatic leveling technology and automatic cylinder changing function further improves the automation level of drawing frame. The use of automatic drafting device, in a few seconds can be fully automatic to achieve self-leveling and optimize the processing of the drawing frame after the stretch. The new equipment is more reliable, and the mechanical shape design is more humanized.
Automatic drop yarn spinning machine is a high degree of automation of spinning equipment, because of the cancellation of the traditional manual drop yarn link, so the operation of the equipment is numerous, program control complex. To meet the spinning requirements of various processes, the electrical control system must have a set of strict and logical procedures as a guarantee, as well as a reliable detection system and advanced control technology. Almost all the newly produced ring spinning machines in China are long automatic falling yarn, which to a large extent shows that the technical problems in the manufacture of long automatic falling yarn spinning machines in China have been fundamentally solved, with an accuracy rate of more than 98%. At the same time, it also reflects the demand of domestic cotton spinning enterprises for long automatic falling yarn spinning machines. Ring spinning frame design generally tends to be modular, the application of numerical control technology, process adaptability is more extensive.
With the continuous improvement of yarn quality requirements, spinning machine manufacturing enterprises have made a lot of improvements in the drafting mechanism to further meet the user's requirements for high speed. The whole machine adopts energy-saving design, which can run at high speed, high efficiency and low consumption, focusing on improving the stability and reliability of the whole machine, greatly reducing the user's use and maintenance costs, and improving labor productivity.
Fine network link cost savings
The automatic winding function can significantly improve production efficiency, save labor and improve product quality, which has become a hot spot in the market in the past two years. Many domestic manufacturers have developed automatic winder, and gradually promote the application. The new automatic winder generally adopts new technologies such as coaxial transmission slot of DC brushless motor, tension control device, new anti-stacking mode, joint circulation electrical control, etc. The degree of mechatronics is also greatly improved, and the function is also modularized.
With the increase in labor costs, the fine network also ushered in a good opportunity for development. The application of the new fine network equipment improves the cleanliness of the yarn, avoids the contact damage of the yarn, and directly connects the two processes with the largest number of people and the largest labor intensity in the spinning mill, realizing automatic and continuous production.
The increase of labor cost, the fluctuation of cotton price and the pursuit of differentiated products by cotton spinning enterprises have made new spinning equipment get more attention. The injection of high and new technology is a necessary condition for industrial transformation and industrial upgrading. Spinning equipment is developing in the direction of high speed, high yield, high automation and intelligent operation, innovation and diversification.