JZ type flexible rapier loom
The JZ2 flexible rapier loom is a new generation of high-end loom independently developed by Xi’an Aero Engine (Group) Co., Ltd. Fabric Machinery Manufacturing Factory. The automation level of this machine is relatively high. Weaving process parameters, such as fabric structure, weft density, weft selection program and warp tension, etc., can be input through human-machine dialogue. The operation is simple and the retrieval is fast. The microprocessor can monitor the operating status and performance of the loom in real time, so that electronic let-off and electronic take-up can be realized under the control and coordination of the microprocessor. When users change varieties, they only need to select and enter the corresponding specific required parameters according to the requirements of the menu. The display system can instantly display the current operating status of the loom. Suitable weaving varieties This machine has a wide variety of adaptability, and can weave from particularly light and thin silk and filament fabrics to industrial fabrics with a weight of 700-800g/m2. Suitable for natural fibers such as cotton, wool, silk, and linen, various synthetic fibers, regenerated fibers, glass fibers, etc. The linear density range is 500~5tex, and the filament range is 1~389tex (9~3500 denier). The weaving speed of the loom can reach up to 550r/min, and the weft insertion rate can reach up to 1400m/min. In addition to weaving fabrics with normal weft density, this machine can also weave fabrics with variable weft density. Main structure: The frame is composed of flat cast iron wall panels, plate weldments, breast beams, round beams, and channel steel bases, forming a solid overall frame. The center of gravity of the loom is lower, and it does not need to stick to the ground even under high-speed operation. Connect and fix it, place the machine feet directly on the ground, and add a special mat in the middle. The shedding system is equipped with a 2650 electronic dobby, which can adapt to the high-speed operation of the loom. The required fabric weave can be input directly from the control panel. It can be equipped with up to 20 heald frames. The large weft cycle of this type of dobby can reach 6400. The weft is lubricated by oil thrown from the independent oil bath box through the rotating body. It can also be equipped with an electronic jacquard machine to weave large jacquard fabrics. For some high-end fabrics and woolen fabrics, a selvedge lifting machine can be equipped to weave selvedges with trademarks. Main drive The loom is composed of a 7.5kW main motor and a main clutch, which can ensure quick starting and braking. Changing the distance of the main motor pulleys (increasing or decreasing the number of spacers between the pulleys) can change the loom’s Rotating speed. Connected to the output end of the clutch is the main drive shaft of the loom, and its two ends are connected to the input gears of the left and right cam boxes, driving the left and right cam boxes to run. On the outside of the left cam box, there are idle and pick-up clutches controlled by respective electromagnets and driven by a 0.55kW electric motor. This clutch has two functions. One is that the loom can run at a slow speed, making it easy to adjust the loom. Another function is to drive the loom for weft searching. A toothed pulley is installed on the outside of the idle clutch, which drives the shedding mechanism and the main encoder of the loom to operate. The left and right cam boxes are equipped with conjugate cams for weft insertion and beat-up, connecting rods and sliders for adjusting the stroke of the weft clamper. Weft insertion system The weft insertion is driven by a conjugate cam, which drives the rapier dial and weft clamper through the swing shaft connecting rod and gear system. The rapier belt is made of high-strength laminated material, and its cross-sectional size is the smallest among similar rapier looms. The size of the rapier head made of aluminum alloy also further reduces the cross-section size. It ensures that the opening height of the shed is further reduced to only 28mm, which is the smallest opening height among similar rapier looms. The kennel path is composed of fixed guide rails and movable guide rails. The fixed guide rails are composed of profiles of different lengths, with small deformation and high precision. , to change the effective width of the fabric, just increase or decrease the extension of the fixed guide rail. The movable guide rail is mounted on a separate reed base, and the sword path is composed of a floating guide hook. The sword head and sword belt are held 1mm above the lower warp yarn. The warp yarn and the sword belt do not contact, that is, there is no relative friction. This kind of guide hook is very Suitable for low-specific filaments, woolen yarns, hairy yarns or low-specific and low-tension yarns. Beating-up mechanism The beating-up leisure is driven by a conjugate cam. The reed seat and the reed seat support arm are made of aluminum alloy, which has extremely strong rigidity and small deformation. The beating shaft is supported on two bearing bushes (three supports for wide-width looms), and the bearing bushes are forced circulation lubricated by the lubrication system. Warp let-off system The warp let-off system of this machine uses the back beam and the tension induction system to detect the warp tension change signal and continuously transmits it to the control box. According to the preset value required for the warp tension, the let-off AC servo motor is controlled after computer processing, thereby Changing the amount of warp yarn delivery effectively ensures that the warp yarn tension is stable within the required range during weaving. The front, rear and height positions of the rear beam are adjustable according to the weaving requirements. The let-off motor drives a reduction box composed of a two-stage reduction gear and a pair of worms, and then drives the warp beam after being reduced by a first-stage gear. The diameter of the warp beam side disc is 800mm. The electronic let-off gearbox is lubricated by a separate oil bath. There is an inductive warp stopping frame between the back beam and the heald frame to ensure that the loom stops immediately after the warp ends are broken. Take-up system The electronic take-up system is driven by an AC servo motor and a reduction gearbox. A take-up roller with a diameter of 193mm and a surface covered with emery cloth steadily pulls the fabric away from the cloth mouth. The cloth roll is driven by a sprocket through a friction clutch. The roll diameter is large and can be wound up to 550mm. According to user needs, an anti-wrinkle rod can be added above the cloth roll to make the fabric roll straight on the roll. The take-up device directly inputs the required fabric weft density from the control panel. Compensation for driving marks and avoidance of weaving��The appearance of driving marks after parking is one of the fabric quality issues that fabric companies are concerned about. The driving marks of different widths that appear on different types of fabrics can be compensated for by setting the parameters on the control panel. The amount of compensation can be selected arbitrarily, because the anti-weft stall is controlled by a microcomputer to operate the electronic let-off and electronic take-up at the same time, which can avoid driving marks to the greatest extent. Lubrication system Full lubrication of each transmission friction part is the guarantee for reliable operation of the loom. For this purpose, the machine has a specially designed circulating lubrication system. The gear pump driven by the main motor delivers lubricating oil to the cam box, gear box, beat-up support seat, etc. for spray circulation lubrication. Oil bath lubrication, such as the winding reduction gearbox, let-off reduction gearbox, idle clutch, dobby, weft selector and other transmission parts are immersed in lubricating oil for lubrication. Grease lubricate each joint of the tie rod, the positive scissor spring connecting pin, the edge shear spring connecting pin, the bearing on the rear beam support shaft, the cam on the independent selvedge device, the transmission rod, the rear beam spring connecting pin, etc. The operation of the control system is divided into two parts: one is the process parameters of the fabric, which can directly input the weft density, warp tension, fabric structure, weft selection program, warp stop, weft stop form, warp stop, and weft stop warp into the microcomputer through the control panel. Parameters such as yarn tension compensation and number of reversing turns, parking position, rapier head entry and exit time, normalizing time and weft yarn detection time. Second, the operator’s operation is very simple. There are button switches for the power supply, main motor, and vacuum cleaner motor on the electric control box of the loom. There are a set of control buttons on the left and right of the front panel of the loom, which control the take-up and take-up operations respectively. Stop, start, forward weft search, backward weft search, idle and other functions. There are emergency stop buttons on the left and right sides of the square beam. There are loom operation indicator lights on the electric control box to display warp stop, weft stop, start and other information respectively. As long as the process parameters are appropriately selected, the control system can automatically monitor the entire weaving process. The electric control box also has a data recording and processing function, which can instantly display the current status of the loom and data statistics. Model indication:
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