During the 13th Five Year Plan period, the field of spinning machinery will further increase R & D efforts, transform traditional cotton spinning equipment, promote new products such as coarse and fine combination and flexible fine winding, and develop a new generation of cotton spinning complete sets of equipment. Now let's take a look at which advanced spinning technology and equipment will be developed and promoted.
1. Research on key technologies and complete sets of equipment for intelligent and continuous spinning
At present, the domestic spinning equipment has achieved partial continuity, such as blowing carding unit, coarse and fine winding unit, automatic coil transportation, etc., and has been applied in textile mills. It is also necessary to manage these process equipment as an intelligent whole through automation technology, so as to realize the continuous operation, digital control and network management of the whole spinning equipment, and realize energy saving and consumption reduction, Reduce labor costs, improve the production environment, reduce labor intensity, adapt to a variety of new fiber spinning, improve the grade of traditional fiber yarn products.
Key technology: need to further focus on the study of each process of the cylinder conveying; Automatic sliver joint; Automatic roll changing and head setting of combed roll; Automatic joint of roving; Automatic exchange of roving empty tube and full cylinder roving at spinning frame and automatic joint of spinning yarn; Automatic winder multiple centralized control; In the winding process, the yarn is transported and packed automatically; Realize on-line monitoring and intelligent management of all information of main equipment, auxiliary equipment, raw materials, personnel, finished products and other workshops; Realize data analysis and remote diagnosis.
2020 goal: break through the key technology, complete the connection between most processes, and realize industrialization; Unattended at night; Compared with the traditional discontinuous spinning process, the labor force per 10000 spindles is reduced from 60 to less than 28.
2. Key equipment of short process spinning
Rotor spun and vortex spun yarns are widely recognized for their excellent pilling resistance and wear resistance. In recent years, these new spinning technology and equipment have made great progress in the treatment of raw materials, back channel, yarn product development and adaptability development, and become an indispensable part of spinning.
Key technologies: automatic rotor spinning machine and air jet vortex spinning machine have completed prototype development and are in spinning experiment. It is necessary to further study the high-speed drive, micro motor drive and control technology, improve the success rate and joint efficiency of rotor spinning automatic joint, complete the structure design of vortex spinning nozzle system and the research of spinning and manufacturing process, and solve the problems of spinning spindle difference.
2020 goal: break through key technologies and form small batch production. The rotor speed of automatic rotor spinning machine is not less than 150kr / min; The drawing speed of air jet vortex spinning frame is 240 m / min ~ 450 m / min.
3. Key technologies and industrialization of multi fiber comber
Using cotton comber to process a variety of fibers, improve the arrangement of fibers in the yarn, eliminate neps, make yarn products have better handle, luster, appearance and superior wearing performance, and have a good market prospect. At present, domestic enterprises have reformed the ordinary combing machine to adapt to the combing processing of cotton polyester fiber (the speed is below 150 plies / min), and its products are welcomed by the market.
Key technologies: research and develop high-speed multi fiber combing technology and equipment with production speed of 300 ~ 350 plies / min; Research on the control technology of combing drop in the process of combing; Research on fiber feeding mode, fiber separation and bonding technology, and develop separation and bonding control device suitable for multi fiber combing; Research and develop special cylinder and top comb for multi fiber combing.
2020 target: break through key technologies such as high speed combing technology for multi fiber, drop control technology, separation and joint technology, and establish a demonstration production line for multi fiber combing.
4. Ads automatic doffing system
With the improvement of people's living standards, it is an indisputable fact that the spinning industry has entered the era of multi varieties and small batch. Ads (autodoffer control system) automatic doffing system is flexible and efficient. Through the process automatic control, the seamless connection from doffing to winding is realized, so as to save energy, reduce consumption, reduce labor and increase efficiency, and meet the spinning demand of multi varieties and small batch.
Key technologies: intelligent doffing machine control system development and upgrading; Automatic doffing system network control, spinning machine process automatic control, and automatic doffing system signal connection digital control; The automatic doffing system completes the full-automatic doffing operation, and the full yarn is collected and transported automatically; Different types of ATC automatic feeding function, network remote diagnosis and treatment of system failure.
2020 target: break through key technologies and achieve small batch production.
5. Intelligent electric spindle spinning frame and on line detection system of spinning frame
The intelligent electric spindle spinning frame has the functions of data acquisition, analysis and control. With the on-line monitoring system, it can monitor the running state of the spinning frame in real time, collect the spindle speed and the running parameters of the steel ring. It has the functions of automatically judging the yarn breakage and twisting efficiency, and can realize the roving self-stop feeding. Due to the single spindle, single motor and single drive control, the spinning speed is high, the stability is good, the difference between spindles is small, and the spinning quality is high.
Key technologies: using distributed network technology to achieve large-scale multi motor cluster control and multi-1 / 0 point control; Large scale whole system real-time big data acquisition, real-time intelligent analysis; Large scale data real-time statistics; Research on high speed spinning precision winding technology and spinning draft reliability technology; Roving self stop feeding device.
2020 target: to build a cotton spinning application demonstration workshop of 100000 spindle electrospinning frame.
6. Intelligent double twisting technology and information system of electric ingot
The intelligent electric spindle twister has the advantages of high spindle speed and small spindle difference, which can reduce the unevenness of twisting and increase the output. It has the function of automatically identifying the broken spindle and stopping operation. It adopts the servo transverse motion technology, which makes the winding flexible and high quality. The winding speed can reach 120m / min, and the process parameters can be set online. It has the functions of data acquisition, analysis and control, with online monitoring system, It can feed back the output, energy consumption, efficiency, broken ingot position and other information in real time to improve the management level.
Key technologies: research and development of low cost and high efficiency ingot and drive technology; Develop a real-time big data system, which can collect all the data of the whole system online and conduct intelligent analysis; Research on the reliability technology of ingot; Multi motor coordinated control technology ensures the same twist when switching on and off.
2020 target: the intelligent electric spindle twister will be initially promoted in the industry, and the scale will reach 30000 spindles.
7. Precision digital winding technology of grooveless drum
At present, the winding of the winder adopts the way that the grooved drum drives the drum yarn. The winding shape of the drum yarn is determined by the curve on the grooved drum. Because the curve on the grooved drum is fixed, there is an insurmountable overlapping problem, and the end is broken in the unwinding process. In addition, it is necessary to go through a down winding process to produce bobbins that can meet the needs of dyeing. By adopting precision digital winding technology, one down winding process can be omitted. Through software control, both loose and tight bobbins can be produced, so as to realize the production of bobbins with no overlap and moderate tightness.
Key technologies: design and development of high speed winding motor; Design and development of high speed yarn guide motor; Program design and development of yarn guide curve.
2020 target: break through key technologies and achieve small batch production.
8. Double type tray type automatic winder for non collective doffing
At present, most of the spinning spindles in China are still non collective doffing spindles. There is a large market for the automatic winder to meet the needs of non collective doffing. The tray type automatic winder with double varieties has been successfully developed in foreign countries, but it is still blank in China. It is necessary to develop this kind of automatic winder.
Key technology: non collecting and falling tail processing technology; Supply mode and related technology of two kinds of tube yarn.
2020 target: break through key technologies and achieve small batch production.
9. Single spindle combined driving and winding system of one step twister
At present, the primary and secondary twisting spindles of one-step twisters are driven by long belt or spindle belt in China. The winding capacity of primary and secondary twisting is about 1kg ~ 2kg, and the traditional rubber roller is used for wire feeding. Up and down chain labor, labor intensity, more joints, workshop noise, yarn twist unevenness, tensile instability, seriously restricted the improvement of civil and industrial product quality and production efficiency. It is imperative to research and develop large package 10kg data informatization, intelligent control and automatic production of twisting machine.
Key technologies: intelligent mode development of single spindle synchronous micromotor; 10kg package design for single spindle of primary and secondary twisting; Adopt winding roller device, single spindle length, full tube short yarn automatic stop design; Development of automatic brake clutch system for double twist spindle.
2020 goal: solve the key technology, complete the prototype manufacturing and testing and installation in some user enterprises.
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