GA type flexible rapier loom



GA type flexible rapier loom The GA736 flexible rapier loom is a new type of loom designed and manufactured by China Fabric Machinery Co., Ltd. In the design, the structural and fu…

GA type flexible rapier loom

The GA736 flexible rapier loom is a new type of loom designed and manufactured by China Fabric Machinery Co., Ltd. In the design, the structural and functional advantages of shuttleless looms at home and abroad were referenced, and all manufacturing was made locally. Domestic devices and standard parts were adopted, which has a high performance-price ratio and is suitable for weaving cotton, wool, and silk. , linen and blended chemical fiber fabrics, yarns, threads and other fabrics, as well as some thick and heavy industrial cloths. Scope of application and fabric varieties The GA736 flexible rapier loom has a wide variety of adaptability and is suitable for weaving cotton, wool, silk, linen and blended chemical fiber fabrics, yarns, threads and other light and thin, high-density and heavy fabrics as well as some industrial fabrics. It includes various yarn-dyed, twill, satin, corduroy and dobby fabrics. Main structure: The GA736 rapier loom is a non-separate reed base flexible rapier loom. The loom has a simple structure, good rigidity, and has the main functions of a high-end loom. The transmission mechanism adopts a single-chip plane friction electromagnetic clutch. The start brake is installed on the high-speed shaft. The high-speed shaft drives the main shaft and the reversing box. The main shaft drives the beating, weft insertion mechanism and reversing box. The reversing box drives the shedding, let-off, coiling and Weft scissors. Beating-up mechanism Four-link short-hand beat-up, short reed seat feet, aluminum alloy profile reed seat, four aluminum alloy auxiliary reed seat feet are arranged within the length range of the reed seat to ensure the rigidity and beating-up force of the reed seat. The weft insertion mechanism adopts a flexible rapier belt and a central connection of the rapier head. The rapier head is composed of a six-link weft insertion mechanism and a four-link beat-up mechanism laminated together. After the two blades are combined, the sword transfer box drives the sword transfer wheel to rotate back and forth, thereby driving the sword belt and sword head to reciprocate. This synthetic leisure can make the sword head have a small idling distance, the weft insertion mechanism has a small swing and a small vibration. Shedding mechanism: This machine adopts a bottom-mounted GT412 positive mechanical dobby shedding device, which can accommodate up to 20 heald frames. The bottom-mounted shedding device ensures stable operation of the loom and enhances shedding capacity. The lifting and lowering of the heald frame is accomplished by sending a signal from the grain paper according to the weaving process, and driving the heald lifting arm through horizontal needles, vertical needles, upper and lower hook broaches, blades, and connecting rods. The dobby device is driven by the gear-driven dobby shaft of the reversing box. This dobby device is equipped with a closed automatic lubrication system, which has the characteristics of stable operation, convenient variety exchange, and wide adaptability. The back beam and let-off mechanism of the loom adopt the “Hunter-type” mechanical let-off mechanism and back beam adjustment mechanism produced by our company. This set of mechanisms is also used on the Xinlong rapier loom produced by our company, and is suitable for the weaving of various types of fabrics. Coiling mechanism This machine adopts a worm gear positive continuous coiling mechanism and is equipped with 10 weft density changing gears to suit various weft density requirements. The maximum diameter of the cloth roll is 500mm. The cloth roll roller is driven by a flat friction mechanism. The friction mechanism can adjust the fabric winding tension. The surface coating material of the take-up roller can be covered with bristle iron sheet, emery, rough rubber and other coating materials according to the type of fabric. According to user requirements, a stand-alone large packaging mechanism can be configured. The weft selection mechanism adopts six-color electronic weft selection. According to the process requirements, the weft yarn weaving program is input through the electric control box panel, thereby realizing the free selection of six-color weft yarns. The application of electronic weft selection mechanism makes it easy to change fabric varieties and makes the varieties more adaptable. Weft-finding mechanism: This machine is equipped with an automatic weft-finding mechanism, which drives shedding, let-off, coiling and color selection through the reversing box. After stopping when the weft is broken, the reversing box reverses slowly to stop the loom in the opening position to find out the missing or broken weft. If you need to continue searching for weft, you can press the reverse button, and then the warp let-off, take-up, shedding and color selection will be reversed simultaneously. After the weft yarn is processed, the loom can be started directly, and the cloth surface will not produce dense running rails. Weft stop device: Piezoelectric ceramic induction weft stop device, which can effectively detect broken weft yarns. Hemming device adopts leno hemming device, and the hemming device is installed on the two heald frames. When the heald frame is relaxed up and down, the hemming device is driven to complete the hemming. According to the user’s needs, a separate waste edge hemming device suitable for chemical fiber and silk fabric weaving can be installed. Centralized refueling device adopts a manual oil pump. Each refueling point can be evenly injected with lubricating oil every time it is pressed, which reduces the labor intensity of workers and reduces the wear of machine parts. Some lubrication points still require manual oiling. Control system: It adopts single-chip intelligent control, single-sided electrical control box, has a variety of control functions, and the whole machine has a high degree of electromechanical integration. Use and Maintenance: Oil must not enter the friction end surfaces of the electromagnetic clutch and brake, otherwise the loom will start slowly and the brakes will not be accurate. Separate crankshafts should be regularly checked to see if the left and right sides are synchronized. If not, the crankshaft can be placed at 90° (or 270°), loosen a set of couplings on the high-speed shaft, shake the handwheel to make the machine in a relaxed state, and then tighten the couplings. section, and then check the concentricity of the two reed base legs to make sure the error is within 0.5. The lubricating oil required for the sword transfer box is semi-fluid grease that can prevent leakage, resist high temperatures, have large load-bearing capacity and have a long service life. In order to increase the service life of the sword transfer box and reduce the wear of the spiral gear, users are required to replace the lubricating oil in the sword transfer box after using the new machine for 1 to 2 months. Before replacing the new oil, be sure to pour out the old oil and wash it with kerosene before adding new oil. During normal use, check the amount of oil in the tank once a month. If it is insufficient, add a certain amount of oil appropriately to prevent gear wear after the lubricating oil is consumed. Replace lubricating oil every six months, 300mL each time. Used by the Sword Passing BoxThe rubber skeleton oil seal must meet the technical requirements stipulated in the standard. The operating temperature is generally not higher than 75°C, and when it is higher than 100°C, the continuous operation does not exceed 2 hours. The rubber skeleton oil seal is a wearing part. Users should pay attention to the use of the oil seal during use. When leakage oil is found to be more than 3 drops per minute, the oil seal must be replaced in time. The backlash of the spiral bevel gear of the transmission box has been adjusted before leaving the factory, and the starting point mark is marked. Users are advised not to disassemble and assemble at will before use, so as to avoid excessive backlash of gear meshing and affecting the quality of use. When designing and manufacturing the sword transmission box, it has been taken into consideration that the gears will wear out after long-term use. During assembly, copper sheets have been added to adjust the backlash after the gears wear. The backlash should be less than 0.1mm. The idle state of the sword transmission box gear during use is reciprocating. The number of engagements of each tooth is different, and the amount of wear is also different. Generally, only 3 to 5 teeth have greater wear. In order to improve the operating life of the gear, the gear is required to run for a period of time, adjust the backlash and contact surface after turning 90°, and continue to run. A pair of gears can be adjusted to 2 to 3 positions to ensure uniform wear of the tooth surface. The user is required to rotate the gear 90° and adjust the backlash before continuing to operate the gear after 3 months of operation. After the sword transfer box gear has been running for a period of time, the tooth surface will gradually wear out and the backlash will gradually increase. Therefore, users must maintain and repair it in time to extend the service life of the sword transfer box. The sword belt must ensure accuracy in order to run smoothly. The sword belt should be maintained by soaking in oil and stored hanging. The sword head and sword belt are connected flatly, and anaerobic glue is added to the threads of the sword head and sword belt connecting screws to prevent loosening. In order to ensure the mechanical performance of each operating part of the loom, a reasonable refueling system should be formulated to prevent the friction parts from wearing out and affecting the life of the loom. After debugging the whole machine, ensure that the relevant screws and bolts are tightened to avoid damage after long-term high-speed operation. loose. Pay attention to whether there are any abnormal noises. If you find any abnormal noises, you should stop the car immediately and make sure the debugging is normal before driving again. When the machine is shut down, it should be properly maintained and cleaned of feathers, dust, etc.
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