GA type air jet loom
GA718 air-jet loom is a new type of loom developed, designed and manufactured by China Fabric Machinery Co., Ltd. It can weave short fiber and filament fabrics of various weft densities and weights. Suitable weaving varieties can weave staple fiber yarns with yarn characteristics of 7 to 60tex (10 to 80 inches), filament fabrics of 5 to 44tex (46 to 400 denier), and weft density ranges from 118 to 945 threads/10cm (30 to 240 denier) root/inch), the weft color can be single color, mixed weft or two-color, four-color or six-color weft. Shedding mechanism Negative cam shedding is suitable for plain weave, twill and satin weave fabrics, up to 8-page heald frames. Crank shedding is suitable for high-speed weaving of short fiber and filament fabrics, up to 6 heald frames. The dobby opening is suitable for fancy fabrics, up to 16 pages of heald frames. The weft insertion mechanism adopts main nozzle, auxiliary nozzle, special-shaped reed and solenoid valve. The auxiliary nozzle adopts two-hole or seven-hole nozzle, which has good air flow clustering performance, plus high propulsion main nozzle, high-frequency response solenoid valve and segmented control storage. The air tank ensures stable and efficient weft insertion, and additional main nozzles and end tensioning nozzles are optional. Weft colors include single color, mixed weft, two colors, four colors, and six colors. Mixed weft can minimize weaving defects caused by uneven yarn quality; in two-color, four-color, and six-color, the main nozzle pressure and time of the corresponding electronic weft feeder can be set independently. The beat-up and broken-weft finding mechanism adopts a four-link short handle to beat up on both sides, and the high-speed leisure parts are lubricated by an oil bath in the box of the wall panels on both sides. The slow speed reversing for finding broken weft is switched to low-frequency power drive by the electric motor, and the structure is simple. After the weft is stopped, the loom automatically stops at the set position, which facilitates weft break processing and is easy and reliable to operate. The let-off mechanism adopts a servo-controlled let-off device, which is composed of a let-off motor, a transmission device, a back beam and a stabilizing device. The tension detector detects the warp tension and controls the let-off amount of the let-off motor. The mechanism is simple, easy to adjust, and adaptable. High-speed weaving under various conditions. The coiling mechanism adopts mechanical coiling, which is a continuous coiling mechanism composed of synchronous belts, gears, worm gears, etc. The weft density can be changed within the range of 118 to 945 threads/10cm (30 to 240 threads/inch), and the gears are easy to change. , Convenient, select a pair of corresponding conversion gears according to the weft density table, and only need to unscrew a pair of bolts to replace them. The surface of the take-up roller and cloth take-up roller adopts spray-coated stainless steel technology, which is more wear-resistant and corrosion-resistant than emery. Depending on the type of fabric, other surface coating materials can also be used. With electronic take-up, the weft density parameters can be directly set on the operation panel to achieve changes in weft density. The warp stopping device adopts six rows of contact electronic warp stopping devices and is equipped with six rows of electronic warp breaking display devices. The weft detection device adopts dual weft finders to detect the flying condition of the weft thread. One weft finder detects the arrival and arrival time of the weft thread, and can correctly detect missing or short wefts. The second weft finder can detect broken weft threads (long weft threads). latitude) occurrence. The hank selvedge device can adopt 4 skein selvedge mechanism or optional independent station planetary selvage selvage mechanism and fold-in selvage device. The electronic control system adopts PCC as the control center to control various parts such as weft insertion and warp let-off. The setting and display are convenient and intuitive. It can also adopt a touch screen display system (optional), which is highly reliable and easy to operate. Each has an operation button panel, and there is an emergency stop button behind the car to facilitate the operation of blocking the car. Routine maintenance: Clean the main nozzle, scissors, weft finder, tensioner and other places where flying particles and slurry are easily attached. Every time the machine is started, the open guide wheel groove, transmission belt, synchronous belt, side brace, reed seat, return heald spring frame, back beam, cloth roller, warp beam, warp beam frame, etc. should be cleaned. Places where dust is not easy to be cleaned and refueled, and water should be drained from the filter. , fuel tank level inspection, etc. In addition, maintenance must be performed according to specified dates and intervals.
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