Introduction To The Guiding Opinions On The Development Of Textile Machinery Industry In 13Th Five-Year

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During this period, our country

The industry will develop and promote a number of advanced knitting machines with more efficient, wider adaptability, shorter production processes and less energy consumption.

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There are 9 items of knitting machinery in the 59 key scientific and technological tackling projects during the "13th Five-Year" period in 13th Five-Year.

During the "13th Five-Year" period, knitting machinery will focus on improving equipment stability and adaptability, further reducing the gap between knitting machinery products and international advanced products in terms of reliability and consistency.

1 research and development of stereoscopic forming (woven and wearable) computerized flat knitting machine

Meaning and content: Although the leading computer flat knitting machine manufacturers abroad have launched many years of weaving and wearing computerized flat knitting machines, they have not been able to popularize because of high price and so on.

The main contents of the research and development of the knitted flat knitting machine include: the technical pformation of the flat knitting machine, including the application of the multi needle bed technology, the compound needle technology and the single segment needle selection technology; and the optimization of the software of the printing system.

Key technologies: 1. the development of multi needle bed computerized flat knitting machine, including the machine structure design and the corresponding control system; 2., the development of wearable software, mainly the automatic generation of wearable technology.

2020 Objective: to complete the development of multi needle bed computerized flat knitting machine prototype.

2 on line identification system for knitted fabric defects

Significance and content: the system can replace manual labor to effectively detect dynamic defects on knitted fabrics. The system has high recognition accuracy, reduces the labor intensity of the workers, reduces the employment and improves the efficiency of cloth inspection.

Key technologies: 1. knitted fabric defect image recognition technology; 2. knitted fabric defect feature dynamic identification technology; 3. knitted fabric defect information fast feedback and machine quick response.

2020 target: complete the dynamic identification and analysis of knitted fabric defects, and complete the prototype manufacturing.

3 high performance fiber multi axial warp knitting machine

Meaning and content: the machine is used for the production of high performance fiber multi axial warp knitted products. The warp knitted product has great application prospects in aerospace, large conveyor belts and high performance flexible composite materials due to its excellent quality such as light weight, high strength, high modulus, high tear strength and quasi isotropy.

The key technology: 1. rotation technology and control of the Chlamys; the rotation technology and control of the 2. warp knitting machine; the coordinated control of the 3. warp knitting machines; the coordination of the 4. warp knitting machine, the pversal mechanism, the ring forming mechanism, the pulling and drawing mechanism, and the pmission mechanism.

The goal of 2020 is to break through the key technology and trial produce high performance fiber multiaxial warp knitting machine.

4 high performance fiber circular multi axis warp knitting machine

Meaning and content: the high performance fiber circular multi axial warp knitting technology is the world's first creation, which is widely used in the production field of large-diameter pipes and other products.

With the development of high performance fiber production technology, the market of flexible composite pipe with high performance fiber as reinforcement is huge, and the special equipment of high-performance fiber tubular fabric is still blank. The circular multi axial warp knitting machine is urgently needed.

The development of the sample machine has achieved initial success.

The key technologies are as follows: 1. multi layer and multi angle pad yarn and shedding mechanism; 2. coordinated yarn control and yarn forming mechanism, 3. yarn laying mechanism, ring forming mechanism and pmission mechanism.

2020 target: trial production of high performance fiber circular multi axis warp knitting machine prototype.

5 one-step full fashioned hosiery machine

Meaning and content: with the shortage of skilled workers, the production of socks industry has been affected.

The sewing procedure of young socks was faced with difficulties in recruiting workers.

Therefore, it is necessary to develop hosiery machines integrated with weaving, matching and sewing heads, so as to realize the whole process automation of socks production and liberate labor force.

Our country has carried out the development of the technology and prototype, but because of the abundant labor force, no market demand, and due to the complexity of the institutions, the technology level at that time could not be further improved.

The key technologies are as follows: 1. the pfer mechanism of the hosiery head is automatically pferred from the needle barrel to the sewing head plate; the 2. sewing head is moved to the seam head area, and the sewing head is automatically matched counterpart. 3., the automatic sewing head is taken off and stocking down.

2020 target: trial production of stable performance weaving, matching head and sewing head one-step hosiery machine prototype.

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6 knitting high speed and high quality production technology

Meaning and content: China's knitting industry is developing rapidly, requiring knitting machines to have higher machine speed and finer needle spacing.

It has already studied the motion coordination curve of knitting machines and the kinematics and dynamics analysis of knitting needles.

Central control has been realized on knitting machines with multiple modules including yarn supply (let off), traction coiling, electronic jacquard, electronic yarn breaking and self stopping.

In the future, the key technologies of motion analysis, material, design and machining of ring knitting machine are mainly studied, and the control technology of weaving tension is systematically studied.

The key technologies are as follows: 1. study the material and processing technology of the ring forming parts and pmission mechanism; 2., study the weaving tension control technology, realize the constant tension control of the yarn / traction during the weaving process; 3., study the neural network intelligent control technology, the controllable positioning parking and intelligent tension compensation technology.

2020 goal: 1. developed a high speed warp knitting machine with a rotating speed of 4000 R / s. The machine number is E40.

2. developed the 30chr (34) knitting circular knitting machine with speed 50 revolutions / points, and the machine number 50G or above.

7 full series fine needle spacing

Manufacturing technology of high speed tongue needle

Meaning and content: break through the manufacturing technology of high difficulty fine needle weft knitting machine Tongue Needle: its performance is tough and tough, hardness >HRC58-60, good anti fatigue performance.

We produce stockings needle, seamless underwear needle, fine needle spacing big circle machine needle, etc.

The demand for the main needle of the fine needle knitting machine in China is over 3 billion.

At present, stockings needles have been preliminarily developed and tried.

Key technologies: 1. needle blanching blanking technology; 2. fine needle tongue manufacturing technology; 3. fine tongue groove design and milling technology; 4. fine needle tongue installation technology; 5. thin needle processing deformation control technology; 6. thin needle heat treatment process deformation control technology.

The goal of 2020 is to break through the key technologies and complete the trial production of knitting needles.

Set up a demonstration factory using domestic knitting needles.

8 high speed and high reliability electronic

Self checking needle selector

Significance and content: with the increasing speed of weft knitting machinery, jacquard weave patterns are becoming more and more complex, and the electronic needle selector (electromagnet or piezoceramic) is put forward higher requirements.

The development of high speed, high reliability electronic self checking needle selector, real-time detection of jacquard weaving action accuracy, can effectively solve the waste caused by jacquard disorder, and improve the automation level of knitting machinery and equipment.

Applied basic research is being carried out. Functional prototype is needed. The working principle and structure analysis of the needle selector should be further studied, and the detection mechanism and technical feasibility route should be improved.

The key technologies are as follows: 1. the selection of the cutter head shape, structure design, new material selection, 2. needle selection energy saving technology, 3. needle selection device self checking technology, 4. two needle selection drive mode (electromagnet and piezoelectric ceramic) working principle research, 5. needle selection device and driving circuit integrated structure design; 6. new high-speed bidirectional control bus network structure design; 7. needle selector knife head movement signal detection and pmission technology.

2020 Objective: Taking the high-speed underwear machine as the research object, the frequency of the cutter head is up to 150Hz, which has the function of detecting and detecting the movement of the cutter head swing motion, the stable needle selector and the corresponding electronic control system prototype.

9 five position computer jacquard circular knitting machine

Meaning and content: at present, computerized jacquard circular knitting machines both at home and abroad are all made of three position jacquard circular weft knitting machines. Their knitting needles are in three states of lap, circle and no work at every 10% lap system, and the number of patterns in weaving is greatly restricted.

The newly developed five position computer jacquard circular knitting machine will add two work positions on the basis of three bits of work, so that the needle needles can be divided into five circles in each 10% lap system, such as long loops, short loops, long loops, circles, short loops and circles.

The key technologies are as follows: 1. develop the triangulation structure to make it realize the weaving function of five bit position; 2. develop the control system that can realize five position knitting; 3. develop a fabric design and simulation system which can carry out five position pattern design.

2020 target: complete prototype production and performance testing, break through key technologies and complete small tests.