Innovation And Breakthrough Of Weaving Technology

　　 Key word

　　 Control system

The control system embodies the high end shuttleless loom. technology An important sign of level. The advanced intelligent distributed control system mainly has two functions: loom monitoring and information network management. Loom monitoring has the functions of real-time monitoring, data monitoring, two-way communication and so on. It is an advanced quality control technology. Information network management Ethernet, CAN bus, optical fiber communication and so on constitute a LAN, which can realize loom group control, and real-time weaving parameters can be communicated by means of communication. network To achieve remote control and transmission in the global and regional areas, problems and faults can be diagnosed and processed in time.

The domestic high-end shuttleless loom has increased the use of multi CPU distributed control in the control system in recent years. The gap between the high speed shuttleless loom and the foreign loom is shrinking, but the stability and reliability of the information network management technology and system need to be further strengthened.

　　 Modular design

Modular design takes full account of the commonality of parts and convenience of transformation assembly, which can reduce costs and speed up the market supply of products. At present, the modular design concept is widely applied in European looms, which can expand and evolve the original models. Most of the models can realize the components of rapier and air-jet looms. In recent years, some Japanese manufacturers have also applied the modular design concept in the design of water jet looms, and the water jet looms have used some production platforms of air-jet looms, thus improving the comprehensive technical performance of the products.

The manufacture of rapier and air-jet looms in China is still dominated by imitation machines. Due to this restriction, the generalization of the two looms has not yet entered the field of modularization design concept, but the application of parts commonality has long been involved.

　　 CNC direct drive

In the past two years, advanced jet and rapier looms have been widely applied to direct drive technology of main motor, and the main drive is incorporated into the control system to accelerate the complete automation of looms. After adopting this technology, the main drive system cancels the main clutch, brakes and slow speed, weft insertion mechanism, which is directly driven by digital control of the program, which is conducive to increasing loom speed, running efficiency, reducing energy consumption and material consumption.

With this driving technology, the main motor is required to have low consumption, high starting torque, good speed regulation performance, frequent start braking and high efficiency. At present, the motor driven by direct drive technology is mainly composed of switched reluctance motor (Sumo), synchronous variable reluctance motor (DD), independent variable frequency motor and alternating current brushless motor (Hi-Drive).

　　 new technique

Water jet looms and products

Technical brief

The water jet loom is a shuttleless loom that uses the water jet to draw weft across the shed. The friction traction force of weft insertion on water jet looms is larger than that of air-jet looms, and its diffusivity is small. It is the first choice for weaving filament yarns to meet the needs of weft insertion of synthetic filament and glass fiber.

　　 Superiority embodiment

The width of the reed width of the water jet loom is 230cm~350cm, which not only can produce regular polyester yarn, nylon yarn, but also can produce low elastic yarn, strong twist yarn, different shrinkage yarn, super fine denier yarn, etc. the fineness range is 10dtex~167dtex, and the running speed of the water jet loom can reach 1200R / min.

　　 Application example

Ultra fine denier chemical fiber fabric: in the development process, we need to solve the strength problems of fine denier 15D, 20D polyester or nylon fabrics, and at the same time cooperate with some printing and dyeing and finishing processes, endow the fabric with fashionable appearance and special functions, and improve the added value of the products.

Crepe fabric: crepe de Chine, crow crepe, crepe de chine and crepe fabric with strips and frames. Soft linen is a kind of imitation hemp crepe fabric made from a variety of synthetic fibers. It has bright colors, soft handle, excellent drapability and breathability. The fabric is ironing free and easy to wear. There are many kinds of effects such as double color, color and stripe on the silk surface. Weave weave, crepe tissue, Fang Ping tissue, striped tissue, through hole tissue and peacefully weave jacquard weave.

Fleece fabric: fine denier synthetic fiber soft silk, woven fabric has a good handle, especially its excellent velvet feeling, can be used fine denier silk knitted peach skin, in addition, with super fine silk woven suede, is widely used for jacket and windbreaker fabrics.

Wool like and linen like fabric: wool like or linen like synthetic fabric is used to create wool like or linen like fabrics. The two-color slubby products are made of two kinds of polyester thread with slubby effect and weave together into warp and weft threads. After dyeing, the silk surface shows a double color effect. The fabric has excellent drape and air permeability, good wrinkle resistance, smooth handle, and evenly distributed double color slub on silk surface, with special appearance effect.

　 Editorial Reviews

At present, most water jet looms are equipped with two water pumps, which can weave two different weft threads. The computer 4 color arbitrary weft selection has also been applied to water jet looms. Water jet looms are mainly used to produce synthetic silk, suede, elastic fabric and other products, which can meet the production needs of all kinds of fabric organizations.

　　 Projectile loom and its products

Technical brief

Loom loom is the earliest shuttleless loom to achieve commercial production. It has been able to achieve 6 colors in any order of weft insertion. The shuttle is electronically controlled, and the position and position of the shuttle is ensured automatically by the position of the sensor plate.

　　 Superiority embodiment

The width range is from 190cm~650cm, and can be widely woven. The yarn has wide application range: short fiber yarn 6.4dtex~2000dtex, filament 12dtex~5550dtex, weft density from 0.83~181.5 root /cm, weft insertion speed up to 1200m/min, fabric weight range from 40~1000g/m2.

　　 Application example

The projectile loom is characterized by high speed, high power and reliable operation. It is especially suitable for weaving wide industrial textiles, such as industrial, building and agricultural industries. In terms of clothing materials, thin elastic denim produced by shuttle looms can be used to weave light, refreshing, elegant stripes, or weave or steady or lively jacquard. This will give cowboy fabrics high added value and enhance product quality. {page_break}

　　 Editorial Reviews

The shuttle weft insertion system is suitable for cotton, wool, chemical fiber and its blended yarn, including yarns of flat yarn and monofilament, which can process ordinary fabrics or high end fabrics. It also has wide adaptability in weaving special fabrics, such as elastic denim, industrial filament or flat silk fabric.

　　 Air jet looms and products

Technical brief

Air jet looms have the advantages of high insertion rate, high degree of mechanical and electrical integration, short mechanical transmission chain, compact structure and few wearing parts. When the main nozzle of air-jet loom is changed from single nozzle to double nozzles, 4 nozzles or even more, the frequency of opening and closing of solenoid valves on multiple nozzles can be reduced relative to certain weft insertion frequency and certain loom speed.

　　 Superiority embodiment

The technological innovation of air-jet looms is mainly reflected in the following aspects: increasing production speed and widening width; enlarging weaving scope, enhancing variety applicability, improving fabric quality, improving relative quality assurance measures, improving jet weft insertion control and reducing energy consumption; drawing on and adopting rapier loom's mature technology, further applying computer control technology to make jet technology perfect; improving mechanical structure design, achieving damping effect; configuring weft tension controller, reducing weft filling and improving loom efficiency.

　　 Application example

In weaving denim, the denim is made of blended yarn of Tencel and bamboo fiber. The fabric is made of longitudinal stripe of 3 / 1 Twill and 1 / 1 plain weave. There are Tencel elastic jeans, Tencel warp, Tencel / spandex wrapped yarn as weft yarn, embryo cloth 3 / 1 twill weave, edge tissue 2, upper 2, lower weight leveled, indigo elastic denim is developed, fabric has better elasticity, bright color, silk like style, soft and elegant.

　　 Editorial Reviews

Air jet looms have a wide range of applications, which can be used to weave twisting yarn, strong twist yarn, elastic yarn, network yarn, fancy yarn and anisotropic yarn fabric. It is also an excellent machine for developing high density and high density fabric, such as polyester, cotton, T / C, T / R, and interwoven fabrics of Tencel and linen, cotton, silk and bamboo fiber.