The control system is an important symbol of the technical level of high-end shuttleless loom. The advanced intelligent distributed control system mainly has two functions: loom monitoring and information network management: loom monitoring mainly has the functions of real-time monitoring, data monitoring and two-way communication, which is an advanced quality control technology; Information network management Ethernet, can bus and optical fiber communication form a local area network, which can realize loom group control, real-time weaving parameters can realize global and regional remote control and transmission with the help of communication network, and can diagnose and deal with problems and faults in time.

?? domestic high-end shuttleless looms have increased the use of multi CPU distributed control in the control system in recent years. In terms of real-time monitoring and data processing functions, the gap with foreign looms is narrowing, but the information network management technology and the stability and reliability of the system need to be further strengthened.

? modular design

?? modular design fully considers the universality of parts and the convenience of transformation and assembly, which can reduce the cost and speed up the market supply of products. At present, the modular design concept is widely used in European looms, which can expand and evolve the original models. Most models can realize the universal use of rapier and air-jet loom components. In recent years, some Japanese manufacturers have also applied the modular design concept in the design of water jet looms. Water jet looms use some production platforms of air jet looms, thus improving the comprehensive technical performance of products.

?? the manufacturing of rapier and air-jet looms in China is still dominated by imitation models. Due to this limitation, the generalization of the two looms has not yet entered the field of modular design concept, but the application of the universality of parts and components has long been involved.

? NC direct drive

?? in the past two years, advanced air-jet and rapier looms have widely implemented the application of main motor numerical control direct drive technology, bringing the main drive into the control system, accelerating the full automation of looms. After adopting this technology, the main drive system cancels the main clutch, brake and slow and weft seeking mechanism, and is directly driven by program digital control, which is conducive to improving loom speed, operating efficiency, reducing energy consumption and machine material consumption.

?? the adoption of this driving technology requires that the main motor has low consumption, high starting torque, good speed regulation performance, frequent starting and braking and high efficiency. At present, the motors that manufacturers adopt direct drive technology mainly include switched reluctance motor (SUMO), synchronous variable reluctance motor (DD), independent variable frequency motor and AC brushless motor (HI drive).

? new technology

? water jet looms and products

? technical brief

?? water jet loom is a shuttleless loom that uses jet water column to pull weft yarn through the shed. The friction traction of weft insertion of water jet loom on weft yarn is larger than that of air jet loom, and the diffusion is small. It meets the needs of weft insertion of synthetic fiber, glass fiber and other filaments with smooth surface. It is the first choice for weaving synthetic filament fiber.

? embodiment of advantages

?? the reed width of water jet loom is 230cm ~ 350cm. It can not only weave conventional polyester yarn and nylon yarn, but also weave low elastic yarn, strong twist yarn, different shrinkage yarn and ultra-fine denier yarn. The fineness range is 10dtex ~ 167dtex, and the maximum running speed of water jet loom can reach 1200R / min.

? application examples

?? ultra fine denier chemical fiber fabric: in the development process, we should solve the strength problem of fine denier 15d, 20d polyester or nylon fabric, and cooperate with some printing, dyeing and finishing processes to give the fabric fashionable appearance and special functions and improve the added value of the product.

?? crepe fabrics: crepe de Chine, crepe de Chine, crepe de chine and crepe fabrics with strips and lattices can be woven. Rouli hemp is a kind of crepe like fabric made of a variety of synthetic fibers. The product has bright colors, soft feel, excellent drapability and air permeability. The fabric is non ironing and not easy to wear. The silk surface has a variety of effects such as two-color, color clip and strip. The fabric organization has twill organization, crepe organization, square organization, strip organization, through-hole organization and flat jacquard.

?? pile fabric: fine denier synthetic fiber is soft silk. The woven fabric has a good hand feel, especially its excellent pile feeling. It can be woven into peach skin velvet with fine denier silk. In addition, suede woven with ultra-fine denier silk is widely used as the fabric of jacket and windbreaker.

?? wool like and linen like fabrics: fabrics made of wool like or linen like synthetic fibers. Bicolor slub hemp products are woven with two kinds of polyester fibers with slub effect in cooperation with warp and weft threads. After dyeing, the silk surface presents bicolor effect. The fabric has excellent drapability and air permeability, good wrinkle resistance, smooth hand feeling, evenly distributed bicolor slubs on the silk surface, and special appearance effect.

? editorial comments

? at present, most water jet looms are equipped with two water pumps, which can weave two kinds of weft yarns with great differences. Computer 4-color arbitrary weft selection has also been applied to water jet looms. Water jet looms are mainly used to produce synthetic fiber imitation silk, suede, elastic fabrics and other products, which can meet the production needs of all kinds of fabrics.

? projectile loom and products

? technical brief

?? shuttle loom is the first shuttleless loom to realize commercial production. Now it can realize weft insertion in any order of 6 colors. The shuttle making is electronic, and the correct braking and positioning of the shuttle are automatically guaranteed by the position of the sensor sensing plate.

? embodiment of advantages

?? the width range is 190cm ~ 650cm, and can be woven in multiple frames. The yarn has a wide range of applications: short fiber yarn 6.4dtex ~ 2000dtex, filament 12dtex ~ 5550dtex, weft density from 0.83 ~ 181.5 pieces / cm, weft insertion speed up to 1200m / min, and the gram weight range of fabric is 40 ~ 1000g / m2.