Air jet loom with a weft cutting device and a selvedge device combination and method of use

Abstract

The invention relates to a kind of weft cutting device and selvedge device combination air-jet loom and use method, specifically including loom main body, the loom main body includes loom frame, driving motor, crank arm connecting rod, let-off system, fabric take-down device, shed, weft accumulator, nozzle assembly, the driving motor is fixedly arranged in one side of the loom frame, the crank arm connecting rod is movably arranged on the loom main body, and one end is connected with the driving motor by belt, the let-off system, shed is movably connected with the crank arm connecting rod by connecting rod mechanism, the weft accumulator is fixedly arranged in one side of the loom frame, and the nozzle assembly is fixedly arranged in one side of the loom frame close to the weft accumulator;The fabric take-down device is fixedly arranged in one side of the loom frame close to the shed;The invention can effectively avoid the problem of selvedge thread entanglement caused by blade wear and the problem of selvedge thread entanglement often occurred in the process of fabric winding, and improve the flatness of grey fabric surface.

Description

Technical Field

[0001] This invention relates to the field of air-jet loom technology, and in particular to an air-jet loom combining a weft cutting device and a selvage device, and its method of use. Background Technology

[0002] Air-jet looms are shuttleless looms that use jet airflow to guide the weft yarn through the shed. The working principle is to use air as the weft-guiding medium; the compressed airflow generated by the jet creates frictional traction on the weft yarn, pulling it through the shed. The jet of air achieves the purpose of weft insertion.

[0003] The air jet process on an air-jet loom refers to the process of using high-pressure air to push the warp and weft yarns together to form fabric. Specifically, air is ejected from a nozzle, accelerated into a high-speed airflow by a guide vane, and then jetted along the weft yarn direction towards the weft yarn opening, blowing up the warp yarns underneath the weft yarns to form a tunnel-shaped air cross-section. As it passes through, the warp and weft yarns interweave to form the fabric.

[0004] The fabric is fed into the jet engine by a fabric feeding device. During the fabric feeding process, the fabric is sandwiched in the forming medium, driven forward at a constant speed, close to the fabric forming device, and confined within a specified width and height. At the same time, it is also sent to the motion device to give it a certain tension and stability, and then sent into the jet area.

[0005] During fabric formation, airflow is ejected from nozzles, simultaneously pushing the weft yarns upwards and propelling them along the fabric's grain, thus completing the fabric. At this point, the strength of the warp and weft yarns reaches a balance, allowing the fabric to form stably.

[0006] This weft insertion method enables the loom to achieve high speed and high output. Among several shuttleless looms, the air-jet loom has the highest speed. Due to its reasonable weft insertion method, high weft insertion rate, simple and safe operation, wide adaptability to various products, low material consumption, high efficiency, high speed, and low noise, it has become one of the most promising new types of looms. However, the biggest drawback of the air-jet loom, which uses an airflow weft insertion method, is its high energy consumption.

[0007] Early air-jet looms could only produce narrow-width fabrics, with low loom speeds and poor fabric quality, and could only produce simple, plain-weave fabrics in single colors. Modern air-jet looms have seen significant improvements in speed, automation, product quality, and product adaptability, making them the fastest-growing type of shuttleless loom.

[0008] For example, utility model patent application number 201821162604.6 discloses an air-jet loom that solves the problem of long time consumption during emergency stops in current air-jet looms. The key technical point is that the air-jet loom includes a frame and a control cabinet. The control cabinet is equipped with a first emergency stop button. The frame includes a crossbeam arranged along the length of the frame. The side wall of the crossbeam has a groove along the length of the crossbeam and a control box that slides along the groove. The control box has a second emergency stop button on the side away from the crossbeam to control the stopping of the air-jet loom. This allows the operator to easily perform emergency stops on the air-jet loom.

[0009] However, current air-jet looms have relatively simple functions and poor integration. They often experience yarn tip tangling due to blade wear, and the selvage thread tangling during the fabric unwinding and winding process often leads to selvage shrinkage and deformation, affecting fabric quality. There are also issues with uneven warp and weft threads on the fabric plane, uneven local tension causing partial shrinkage and deformation of the fabric, and poor surface flatness of the fabric. Summary of the Invention

[0010] The technical problem to be solved by this invention is to improve the overall integration of the air-jet loom, avoid yarn tip tangling caused by blade wear and the problem of fabric edge thread entanglement that often occurs during the unwinding and rolling of the fabric, and improve the surface smoothness of the fabric.

[0011] To solve the above-mentioned technical problems, the present invention provides an air-jet loom combining a weft cutting device and a selvage device, comprising a loom body, the loom body including a loom frame, a drive motor, a crank arm connecting rod, a warp feed system, a fabric removal device, a shed, a weft feeder, and a nozzle assembly. The drive motor is fixedly mounted on one side of the loom frame. The crank arm connecting rod is movably mounted on the loom body via a bearing, with one end connected to the drive motor by a belt. The warp feed system and the shed are movably connected to the crank arm connecting rod via a linkage mechanism. The weft feeder is fixedly mounted on one side of the loom frame. The nozzle assembly is fixedly mounted on the loom frame near the weft feeder. The fabric removal device is fixedly mounted on the loom frame near the shed.

[0012] A weft cutting device for cutting weft threads is fixedly installed on the side of the weaving frame near the nozzle assembly;

[0013] Two sets of selvage trimming devices are symmetrically fixed on the weaving machine frame.

[0014] Preferably, the weft cutting device includes a motor mounting plate, a guide rail, a slider, a slider mounting plate, a scissor mounting plate, pneumatic scissors, a notch-adding blade, a drive motor, a scissor cam, a cam connecting shaft, a fisheye connector, and a fixed connecting shaft. The motor mounting plate is fixedly mounted on the side of the weaving machine frame near the nozzle assembly. The guide rail is fixedly mounted on the motor mounting plate. The scissor mounting plate is fixedly mounted on the slider. The slider reciprocates linearly along the guide rail. The drive motor is fixedly mounted on the motor mounting plate. The scissor cam is fixedly mounted on the drive motor shaft end. The cam connecting shaft is fixedly mounted on the scissor cam. The fixed connecting shaft is fixedly mounted on the scissor mounting plate. The two sets of fisheye connectors are movably connected at both ends to the cam connecting shaft and the fixed connecting shaft, respectively. The notch-adding blade is fixedly mounted on the pneumatic scissors by fastening screws.

[0015] Preferably, the selvage treatment device includes a fixed support, a frame, a worktable, an auxiliary plate, a selvage locker, a leveling synchronous belt assembly, an auxiliary fabric output pressure roller, an upper corner automatic stretching assembly, and a lower corner automatic stretching assembly. The fixed support is fixedly mounted on the weaving machine frame, the frame is fixedly mounted on the fixed support, the worktable is fixedly mounted on the frame, the auxiliary plate is movably mounted on the upper side of the worktable on the frame, the selvage locker is fixedly mounted on the upper side of the auxiliary plate on the frame, and the leveling synchronous belt assembly is movably mounted on the frame and moves linearly up and down along the direction of the selvage locker. The upper and lower corner automatic stretching assemblies are fixedly mounted on the frame near the fabric removal device, and the auxiliary fabric output pressure roller is fixedly mounted on the frame away from the upper corner automatic stretching assembly.

[0016] Preferably, the leveling synchronous belt assembly includes a cylinder support plate, a flat cylinder, a leveling motor support plate, a leveling motor, a main pulley, a synchronous pulley, and a synchronous belt; the cylinder support plate is fixedly mounted on the frame, the flat cylinder is fixedly mounted on the cylinder support plate, the leveling motor support plate is fixedly mounted on the flat cylinder, the leveling motor is fixedly mounted on the leveling motor support plate, the main pulley is fixedly mounted on the shaft end of the leveling motor, and multiple sets of synchronous pulleys are provided, each movably mounted on the leveling motor support plate via a shaft connection, and movably connected to the main pulley via the synchronous belt;

[0017] Preferably, the automatic corner stretching assembly includes an upper base, a corner support arm, a corner support rod, an upper corner shaft, an upper stretching motor base, an upper stretching motor, an upper elastic convex corner turn head, a cylinder shaft base, a cylinder shaft, an upper corner cylinder, and an upper cylinder support rod. The base is fixedly mounted on the frame, the corner support arm is fixedly mounted on the base, the corner support rod is movably mounted on the corner support arm via the upper corner shaft, the upper stretching motor base is fixedly mounted on the corner support rod, the upper stretching motor is fixedly mounted on the upper stretching motor base, the upper elastic convex corner turn head is fixedly mounted on the shaft end of the upper stretching motor, the cylinder shaft base is movably mounted on the upper base via the cylinder shaft, the upper corner cylinder is fixedly mounted on the cylinder shaft base, and one end of the upper cylinder support rod is fixedly mounted on the corner support rod, while the other end is movably mounted on the upper corner cylinder via a fisheye connector.

[0018] Preferably, the automatic corner stretching assembly includes a lower base, a supporting right angle, a lower corner shaft, a lower stretching motor base, a lower stretching motor, a lower elastic convex corner rotor, a lower corner cylinder, a lower cylinder support rod, a conformal rotor, a conformal rotor base, and a sensing probe; the lower base is fixedly mounted on the frame, the supporting right angle is fixedly mounted on the lower base, the lower corner shaft is movably mounted on the supporting right angle via bearings, the lower stretching motor base is fixedly mounted on the lower corner shaft, and the lower stretching motor is fixedly mounted on the lower corner shaft. The lower elastic convex angle rotor is fixedly mounted on the tension motor base, the lower angle cylinder is fixedly mounted on the lower base, one end of the lower cylinder support rod is movably hinged to the lower angle cylinder shaft end, and the other end is fixedly mounted on the lower angle shaft, the conformal wheel seat is fixedly mounted on the lower base, the conformal wheel is fixedly mounted on the conformal wheel seat, and the sensing probe is fixedly mounted on the support right angle and is located on the upper side of the conformal wheel;

[0019] Preferably, the air-jet loom combining the weft cutting device and the selvage device further includes a plastic rounded corner combing device. The plastic rounded corner combing device includes a base, an auxiliary support arm cylinder, an auxiliary support arm cylinder seat, an auxiliary support arm, a fabric inlet groove, a fabric inlet groove cylinder, a combing shaft support frame, a plastic rounded corner combing shaft, and a combing shaft motor. The base is fixedly mounted on one side of the fabric removal device. Two sets of auxiliary support arm cylinders are fixedly mounted on the base, and the auxiliary support arm cylinder seat is fixedly mounted on the auxiliary support arm. The auxiliary support arm is movably mounted on the auxiliary support arm cylinder seat. Two sets of feed trough cylinders are provided and fixedly mounted on the base. The feed trough is fixedly mounted on the feed trough cylinder shaft end. Two sets of combing shaft support frames are provided and fixedly mounted on the base. The plastic rounded corner combing shaft is movably mounted on the combing shaft support frame through bearings. The combing shaft motor is fixedly mounted on the combing shaft support frame and fixedly connected to one end of the plastic rounded corner combing shaft.

[0020] Preferably, the air-jet loom combining the weft cutting device and the selvage device further includes a portable fabric roller frame. The portable fabric roller frame includes a support frame, a rotary motor, a main rotating support arm, a roller, an auxiliary roller, a rocker arm seat, a rocker arm, a pinion, a toothed rotating shaft, a toothed rotating nut, and a movable support arm. The support frame is fixedly mounted on the base near the plastic rounded corner combing shaft. The rotary motor is fixedly mounted on the support frame, and the main rotating support arm is fixedly mounted on the support frame and connected to the rotary motor via a belt. The machine is movably connected, with the toothed rotating shaft movably mounted on the support frame via bearings, the movable support arm being movably connected to the toothed rotating shaft via a toothed rotating nut, the roller being movably mounted between the main rotating support arm and the movable support arm, the auxiliary roller being movably mounted on the support frame via bearings, the rocker arm seat being fixedly mounted on the support frame, the rocker arm being movably mounted inside the rocker arm seat via bearings, and the pinion being fixedly mounted on the rocker arm near the toothed rotating shaft end;

[0021] A method of using an air-jet loom combining a weft cutting device and a selvage device includes the following steps:

[0022] S1. The drive motor drives the scissor cam to rotate, thereby driving the pneumatic scissors to move linearly and reciprocally along the guide rail to reach the weft cutting position. The pneumatic scissors are connected to an external air source and open and close intermittently under the control of a solenoid valve to realize the weft cutting action. When the scissors are worn and have not cut the weft, the notch-filled blade will cut the weft a second time during the retraction action. When replacing the scissors, the entire scissor mounting plate is removed and replaced, and the notch-filled blade is replaced.

[0023] S2. The flat cylinder drives the flat motor support plate to move downward. The synchronous belt is parallel to the fabric and presses evenly on the fabric. The leveling motor rotates and drives the belt to move forward at a constant speed through the main pulley and the synchronous pulley.

[0024] S3. The upper corner cylinder drives the corner support rod to rotate along the upper corner axis through the upper cylinder support rod, and the upper tension motor drives the upper elastic convex corner head to rotate.

[0025] S4. The lower angle cylinder drives the lower angle shaft and the lower tension motor base to rotate via the lower cylinder support rod; the lower tension motor drives the lower elastic convex angle rotor to rotate.

[0026] S5. The auxiliary support arm cylinder drives the auxiliary support arm to move up and down to adjust the fabric to enter the height position. The fabric inlet cylinder drives the fabric inlet to move forward and the fabric enters the fabric inlet. The fabric inlet cylinder drives the fabric inlet to move backward. The combing shaft motor drives the plastic rounded corner combing shaft to rotate.

[0027] S6. The rotary motor pulls the roller to rotate and wind the fabric via a belt. When changing rollers of different lengths, the rocker arm is rotated, thereby driving the toothed shaft to rotate through the meshing transmission of the pinion and the toothed shaft. This, in turn, drives the movable support arm to move linearly along the axial direction of the toothed shaft through the toothed rotating nut.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The design of the weft cutting device avoids yarn tip tangling caused by blade wear. Even if the yarn is not cut on the first attempt, the weft can be successfully hooked off. In addition, the scissor blades can be sharpened, and the notched supplementary blade can be installed and replaced. The weft cutting device has a simple mechanism, high integration, and strong interchangeability, which reduces equipment downtime and improves equipment working efficiency.

[0030] 2. Through the design of the selvage treatment device, the selvage is immediately tidied up when the greige fabric comes off the production line, which improves the appearance of the finished product and effectively prevents the selvage from shrinking and deforming due to the tangling of selvage threads during the rolling process, thus affecting the quality of the fabric.

[0031] 3. Through the design of the corner automatic stretching component, the fabric edge is effectively pulled into the fabric edge processing device. At the same time, the lateral tension on the fabric is converted by the friction force of the oblique rotation, which ensures that the fabric edge processing is carried out under effective lateral tension, improves the accuracy of fabric edge processing, and effectively ensures the dimensional accuracy of the fabric.

[0032] 4. The design of the plastic rounded corner combing device effectively smooths out the unevenness of the fabric surface, while balancing the unevenness of the warp and weft threads on the fabric plane. This avoids the problem of partial shrinkage and deformation of the fabric caused by uneven local tension, improves the surface flatness of the fabric, and enhances the product quality of the fabric.

[0033] 5. The portable fabric roller frame design allows for easy manual adjustment to replace fabric rollers of different sizes on the same frame, improving the equipment's versatility. It is particularly valuable for small-batch, multi-type fabric production. Attached Figure Description

[0034] The present invention will now be described in further detail with reference to the accompanying drawings:

[0035] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0036] Figure 2 This is the left view of the present invention;

[0037] Figure 3 This is a three-dimensional structural diagram of the weft cutting device of the present invention;

[0038] Figure 4 This is a front view of the fabric edge processing device of the present invention;

[0039] Figure 5 This is a three-dimensional structural diagram of the fabric edge treatment device;

[0040] Figure 6 This is a three-dimensional structural diagram of the corner automatic stretching component of the present invention;

[0041] Figure 7 This is a partially enlarged schematic diagram of the automatic corner stretching component of the present invention;

[0042] Figure 8 This is a three-dimensional structural diagram of the plastic rounded corner comb flattening device of the present invention;

[0043] Figure 9 This is a partially enlarged schematic diagram of the plastic rounded corner comb shaft of the present invention;

[0044] Figure 10 This is a schematic diagram of the three-dimensional structure of the portable fabric roller frame of the present invention;

[0045] In the diagram: 1. Loom body; 101. Loom frame; 102. Drive motor; 103. Crank arm connecting rod; 104. Warp feed system; 105. Fabric removal device; 106. Shed; 107. Weft feeder; 108. Nozzle assembly; 2. Weft cutting device; 201. Motor mounting plate; 202. Guide rail; 203. Slider; 204. Slider mounting plate; 205. Scissors mounting plate; 206. Pneumatic scissors; 207. Notch-adding blade; 208. Drive motor; 209. Scissors cam; 210. Cam connecting shaft; 211. Fisheye connector; 212. Fixing 3. Connecting shaft; 3. Fabric edge treatment device; 301. Fixed support; 302. Frame; 303. Workbench; 304. Auxiliary plate; 305. Edge locking device; 306. Leveling synchronous belt assembly; 307. Cylinder support plate; 308. Flat cylinder; 309. Leveling motor support plate; 310. Leveling motor; 311. Main pulley; 312. Synchronous pulley; 313. Synchronous belt; 314. Auxiliary fabric output pressure roller; 315. Automatic corner stretching assembly; 316. Upper base; 317. Corner support arm; 318. Corner support rod; 319. Upper corner shaft; 320. Upper stretching motor 321. Machine base; 322. Upper stretching motor; 323. Upper elastic convex angle rotor; 324. Cylinder shaft seat; 325. Cylinder shaft; 326. Upper corner cylinder; 327. Upper cylinder support rod; 328. Lower corner automatic stretching assembly; 329. Lower base; 330. Support right angle; 331. Lower stretching motor seat; 332. Lower stretching motor; 333. Lower elastic convex angle rotor; 334. Lower corner cylinder; 335. Lower cylinder support rod; 336. Conforming wheel; 337. Conforming wheel seat; 338. Sensing probe; 4. Plastic rounded corner combing device; 401. Base; 402. Auxiliary support arm cylinder; 403. Auxiliary support arm cylinder seat; 404. Auxiliary support arm; 405. Fabric inlet groove; 406. Fabric inlet groove cylinder; 407. Combing shaft support frame; 408. Plastic rounded corner combing shaft; 409. Combing shaft motor; 5. Portable fabric roller frame; 501. Support frame body; 502. Rotary wheel motor; 503. Main rotating support arm; 504. Roller; 505. Auxiliary roller; 506. Rocker arm seat; 507. Rocker arm; 508. Pinion; 509. Toothed rotating shaft; 510. Toothed rotating nut; 511. Movable support arm; Detailed Implementation

[0046] Example 1:

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figures 1-10 A jet loom combining a weft cutting device and a selvage device includes a loom body 1. The loom body 1 includes a loom frame 101, a drive motor 102, a crank arm connecting rod 103, a warp feed system 104, a fabric removal device 105, a shed 106, a weft feeder 107, and a nozzle assembly 108. The drive motor 102 is fixedly mounted on one side of the loom frame 101. The crank arm connecting rod 103 is movably mounted on the loom body 1 via a bearing, with one end connected to the drive motor 102 by a belt. The warp feed system 104 and the shed 106 are movably connected to the crank arm connecting rod 103 via a linkage mechanism. The weft feeder 107 is fixedly mounted on one side of the loom frame 101. The nozzle assembly 108 is fixedly mounted on the loom frame 101 near the weft feeder 107. The fabric removal device 105 is fixedly mounted on the loom frame 101 near the shed 106.

[0049] A weft cutting device 2 for cutting weft threads is fixedly installed on the side of the weaving frame 101 near the nozzle assembly 108;

[0050] Two sets of selvage trimming devices 3 are symmetrically fixed on the weaving frame 101.

[0051] In some embodiments, see Figure 3The weft cutting device 2 includes a motor mounting plate 201, a guide rail 202, a slider 203, a slider mounting plate 204, a scissor mounting plate 205, a pneumatic scissor 206, a notch-enhancing blade 207, a drive motor 208, a scissor cam 209, a cam connecting shaft 210, a fisheye connector 211, and a fixed connecting shaft 212. The motor mounting plate 201 is fixedly mounted on the side of the weaving frame 101 near the nozzle assembly 108, and the guide rail 202 is fixedly mounted on the motor mounting plate 201. Plate 205 is fixedly mounted on slider 203, slider 203 reciprocates linearly along guide rail 202, drive motor 208 is fixedly mounted on motor mounting plate 201, scissor cam 209 is fixedly mounted on the shaft end of drive motor 208, cam connecting shaft 210 is fixedly mounted on scissor cam 209, and fixed connecting shaft 212 is fixedly mounted on scissor mounting plate 205. The two sets of fisheye connectors 211 are respectively connected to the cam connecting shaft 210 and the fixed connecting shaft 212. The connecting shaft 212 is movably connected; the notch-reinforcing blade 207 is fixedly mounted on the pneumatic scissors 206 by fastening screws; in use, the drive motor 208 drives the scissor cam 209 to rotate, thereby driving the pneumatic scissors 206 to move linearly and reciprocally along the guide rail 202 to reach the weft cutting position. The pneumatic scissors 206 is connected to an external air source and, under the control of a solenoid valve, opens and closes intermittently to achieve the weft cutting action; when the scissors are worn and have not cut the weft, during the retraction action, the notch-reinforcing blade 207... The notched supplementary blade 207 performs a secondary cut on the weft yarn. When replacing the scissors, the scissor mounting plate 205 can be completely removed and replaced, and the notched supplementary blade 207 can also be replaced. Through the design of the weft yarn cutting device, yarn tip tangling caused by blade wear is avoided. Even if the yarn is not cut off on the first attempt, the weft yarn can be successfully hooked off. In addition, the scissor blade is sharpenable, and the notched supplementary blade can be installed and replaced. The weft yarn cutting device has a simple mechanism, high integration, and strong interchangeability, which reduces the downtime of the equipment and improves the working efficiency of the equipment.

[0052] In some embodiments, see Figure 4The selvage processing device 3 includes a fixed support 301, a frame 302, a worktable 303, an auxiliary plate 304, a selvage locker 305, a leveling synchronous belt assembly 306, an auxiliary fabric output pressure roller 314, an upper corner automatic stretching assembly 315, and a lower corner automatic stretching assembly 327. The fixed support 301 is fixedly mounted on the weaving machine frame 101, the frame 302 is fixedly mounted on the fixed support 301, the worktable 303 is fixedly mounted on the frame 302, and the auxiliary plate 304 is movably mounted on the frame 302. On the upper side of the workbench 303, the overlocking device 305 is fixedly mounted on the upper side of the auxiliary plate 304 on the frame 302, and the leveling synchronous belt assembly 306 is movably mounted on the frame 302 and moves vertically up and down along the direction of the overlocking device 305; the upper corner automatic stretching assembly 315 and the lower corner automatic stretching assembly 327 are fixedly mounted on the frame 302 near the fabric removal device 105, and the auxiliary fabric output pressure roller 314 is fixedly mounted on the frame 302 away from the upper corner automatic stretching assembly 315;

[0053] In some embodiments, see Figure 5 The leveling synchronous belt assembly 306 includes a cylinder support plate 307, a flat cylinder 308, a leveling motor support plate 309, a leveling motor 310, a main pulley 311, a synchronous pulley 312, and a synchronous belt 313. The cylinder support plate 307 is fixedly mounted on the frame 302, the flat cylinder 308 is fixedly mounted on the cylinder support plate 307, the leveling motor support plate 309 is fixedly mounted on the flat cylinder 308, and the leveling motor 310 is fixedly mounted on the leveling motor support plate 309. The pulley 311 is fixedly mounted on the shaft end of the leveling motor 310. Multiple sets of synchronous pulleys 312 are provided, each movably mounted on the leveling motor support plate 309 via a shaft connection, and movably connected to the main pulley 311 via the synchronous belt 313. In use, the flat cylinder 308 drives the leveling motor support plate 309 to move downwards. The synchronous belt 313 is parallel to the fabric and presses evenly on the fabric. The leveling motor 310 rotates, driving the belt forward at a constant speed through the main pulley 311 and the synchronous pulleys 312.

[0054] In some embodiments, see Figure 5 , Figure 6The automatic corner stretching assembly 315 includes an upper base 316, a corner support arm 317, a corner support rod 318, an upper corner shaft 319, an upper stretching motor seat 320, an upper stretching motor 321, an upper elastic convex corner turn head 322, a cylinder shaft seat 323, a cylinder shaft 324, an upper corner cylinder 325, and an upper cylinder support rod 326. The base 316 is fixedly mounted on the frame 302. The corner support arm 317 is fixedly mounted on the base 316. The corner support rod 318 is movably mounted on the corner support arm 317 via the upper corner shaft 319. The upper stretching motor seat 320 is fixedly mounted on the corner support rod 318. The upper stretching motor 321 is fixedly mounted on... On the upper tension motor base 320, the upper elastic convex angle rotor 322 is fixedly mounted on the shaft end of the upper tension motor 321. The cylinder shaft seat 323 is movably mounted on the upper base 316 via the cylinder shaft 324. The upper angle cylinder 325 is fixedly mounted on the cylinder shaft seat 323. One end of the upper cylinder support rod 326 is fixedly mounted on the angle support rod 318, and the other end is movably mounted on the upper angle cylinder 325 via a fisheye connector. In use, the upper angle cylinder 325 drives the angle support rod 318 to rotate along the upper angle shaft 319 via the upper cylinder support rod 326, and the upper tension motor 321 drives the upper elastic convex angle rotor 322 to rotate.

[0055] In some embodiments, see Figure 5 , Figure 7The automatic corner stretching assembly 327 includes a lower base 328, a supporting right angle 329, a lower corner shaft 330, a lower stretching motor base 331, a lower stretching motor 332, a lower elastic convex corner rotor 333, a lower corner cylinder 334, a lower cylinder support rod 335, a conformal rotor 336, a conformal rotor base 337, and a sensing probe 338. The lower base 328 is fixedly mounted on the frame 302. The supporting right angle 329 is fixedly mounted on the lower base 328. The lower corner shaft 330 is movably mounted on the supporting right angle 329 via bearings. The lower stretching motor base 331 is fixedly mounted on the lower corner shaft 330. The lower stretching motor 332 is fixedly mounted on the stretching motor base 331. The lower elastic convex corner rotor 333 is fixedly mounted on the shaft end of the lower stretching motor 332. The lower corner cylinder 334 is fixedly mounted on the lower base 328. One end of the lower cylinder support rod 335 is movably hinged to the shaft end of the lower angle cylinder 334, and the other end is fixedly mounted on the lower angle shaft 330. The conformal rotating wheel seat 337 is fixedly mounted on the lower base 328, the conformal rotating wheel 336 is fixedly mounted on the conformal rotating wheel seat 337, and the sensing probe 338 is fixedly mounted on the supporting right angle 329, located on the upper side of the conformal rotating wheel 336. In use, the lower angle cylinder 334 drives the lower angle shaft 330 and the lower tension motor seat 331 to rotate through the lower cylinder support rod 335; the lower tension motor 332 drives the lower elastic convex angle rotating head 333 to rotate. Through the design of the selvage treatment device, the selvage is immediately tidied up when the fabric comes off the line, which improves the appearance of the finished product and effectively prevents the selvage shrinkage and deformation caused by the selvage thread entanglement during the fabric rolling process, thus affecting the quality of the fabric. By designing an automatic corner stretching component, the selvage is effectively pulled into the selvage processing device. At the same time, the friction force of the angled rotation is converted into lateral tension on the fabric, ensuring that the selvage processing is carried out under effective lateral tension, improving the selvage processing accuracy and effectively guaranteeing the dimensional accuracy of the fabric.

[0056] In some embodiments, see Figure 8 , Figure 9The air-jet loom combining the weft cutting device and selvage device also includes a plastic rounded corner combing device 4. The plastic rounded corner combing device 4 includes a base 401, an auxiliary support arm cylinder 402, an auxiliary support arm cylinder seat 403, an auxiliary support arm 404, a fabric inlet trough 405, a fabric inlet trough cylinder 406, a combing shaft support frame 407, a plastic rounded corner combing shaft 408, and a combing shaft motor 409. The base 401 is fixedly mounted on one side of the fabric removal device 105. The auxiliary support arm... Two sets of arm cylinders 402 are fixedly mounted on the base 401. An auxiliary arm cylinder seat 403 is fixedly mounted on the shaft end of the auxiliary arm cylinder 402. The auxiliary arm 404 is movably mounted on the auxiliary arm cylinder seat 403. Two sets of fabric inlet cylinders 406 are fixedly mounted on the base 401. The fabric inlet 405 is fixedly mounted on the shaft end of the fabric inlet cylinder 406. Two sets of combing shaft support frames 407 are also provided. The plastic rounded corner combing shaft 408 is fixedly mounted on the base 401 and movably mounted on the combing shaft support frame 407 via bearings. The combing shaft motor 409 is fixedly mounted on the combing shaft support frame 407 and fixedly connected to one end of the plastic rounded corner combing shaft 408. In use, the auxiliary support arm cylinder 402 drives the auxiliary support arm 404 to move up and down to adjust the height of the fabric. The feed groove cylinder 406 drives the feed groove 405 forward, and the fabric enters the feed groove 405. The feed groove cylinder 406 then drives the feed groove 405 backward, and the combing shaft motor 409 drives the plastic rounded corner combing shaft 408 to rotate. Through the design of the plastic rounded corner combing device, the unevenness of the fabric surface is effectively smoothed, and the unevenness of the warp and weft threads on the fabric plane is balanced. This avoids the problem of partial shrinkage and deformation of the fabric caused by uneven local tension, improves the surface flatness of the fabric, and improves the product quality of the fabric.

[0057] In some embodiments, see Figure 10The air-jet loom combining the weft cutting device and selvage device also includes a portable fabric roller frame 5. The portable fabric roller frame 5 includes a support frame 501, a rotary motor 502, a main rotating support arm 503, a roller 504, an auxiliary roller 505, a rocker arm seat 506, a rocker arm 507, a pinion 508, a toothed rotating shaft 509, a toothed rotating nut 510, and a movable support arm 511. The support frame 501 is fixedly mounted on the base 401 near the plastic rounded corner combing shaft 408. The rotary motor... The motor 502 is fixedly mounted on the support frame 501. The main rotating support arm 503 is fixedly mounted on the support frame 501 and is movably connected to the rotary motor 502 via a belt. The toothed rotating shaft 509 is movably mounted on the support frame 501 via a bearing. The movable support arm 511 is sleeved on the toothed rotating shaft 509 and movably connected to the toothed rotating shaft 509 via a toothed rotating nut 510. The roller 504 is movably mounted on the main rotating support arm 503 and the movable support arm 511. Between the support arms 511, the auxiliary roller 505 is movably mounted on the support frame 501 via bearings. The rocker arm seat 506 is fixedly mounted on the support frame 501, and the rocker arm 507 is movably mounted inside the rocker arm seat 506 via bearings. The pinion 508 is fixedly mounted on one end of the rocker arm 507 near the toothed rotating shaft 509. In use, the rotary motor 502 drives the roller 504 to rotate and wind the fabric via a belt. When changing rollers 504 of different lengths, the rocker arm 504 is rotated. The rod 507, through the meshing transmission of the pinion 508 and the toothed shaft 509, drives the toothed shaft 509 to rotate, thereby driving the movable support arm 511 to move linearly along the axial direction of the toothed shaft 509 through the toothed rotating nut 510; the portable fabric roller frame design allows for the simple manual adjustment to replace fabric rollers of different sizes on the same roller frame, improving the versatility of the equipment, especially for small-batch, multi-type fabric production, and has high application value;

[0058] A method of using an air-jet loom combining a weft cutting device and a selvage device includes the following steps:

[0059] S1. The drive motor 208 drives the scissor cam 209 to rotate, thereby driving the pneumatic scissors 206 to move linearly and reciprocally along the guide rail 202 to reach the weft cutting position. The pneumatic scissors 206 is connected to an external air source and, under the control of a solenoid valve, opens and closes intermittently to achieve the weft cutting action. When the scissors are worn and fail to cut the weft, the notch-reinforcing blade 207 performs a secondary cut on the weft during the retraction action. When replacing the scissors, the scissor mounting plate 205 is completely removed and replaced, and the notch-reinforcing blade 207 is also replaced.

[0060] S2. The flat cylinder 308 drives the flat motor support plate 309 to move downward. The synchronous belt 313 is parallel to the fabric and presses evenly on the fabric. The leveling motor 310 rotates and drives the belt to move forward at a constant speed through the main pulley 311 and the synchronous pulley 312.

[0061] S3. The upper corner cylinder 325 drives the corner support rod 318 to rotate along the upper corner shaft 319 via the upper cylinder support rod 326, and the upper tension motor 321 drives the upper elastic convex corner rotor 322 to rotate.

[0062] S4. The lower angle cylinder 334 drives the lower angle shaft 330 and the lower tension motor seat 331 to rotate via the lower cylinder support rod 335; the lower tension motor 332 drives the lower elastic convex angle rotor 333 to rotate.

[0063] S5. The auxiliary support arm cylinder 402 drives the auxiliary support arm 404 to move up and down to adjust the fabric to the height position. The fabric inlet cylinder 406 drives the fabric inlet 405 to move forward, and the fabric enters the fabric inlet 405. The fabric inlet cylinder 406 drives the fabric inlet 405 to move backward. The combing shaft motor 409 drives the plastic rounded corner combing shaft 408 to rotate.

[0064] S6. The rotary motor 502 pulls the roller 504 to rotate and wind the fabric via a belt. When changing the roller 504 to a different length, the rocker arm 507 is rotated, thereby driving the toothed shaft 509 to rotate through the meshing transmission of the pinion 508 and the toothed shaft 509. This, in turn, drives the movable support arm 511 to move linearly along the axial direction of the toothed shaft 509 through the toothed rotating nut 510.

[0065] Obviously, the above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, these obvious variations or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A jet loom combining a weft cutting device and a selvage device, characterized in that: The loom includes a main body (1), which includes a loom frame (101), a drive motor (102), a crank arm connecting rod (103), a warp feed system (104), a fabric removal device (105), a shed (106), a weft feeder (107), and a nozzle assembly (108). The drive motor (102) is fixedly mounted on one side of the loom frame (101), and the crank arm connecting rod (103) is movably mounted on the main body (1) via a bearing, with one end connected to the main body. The motor (102) is belt-connected, the warp feeding system (104) and the shed (106) are movably connected to the crank arm connecting rod (103) via a linkage mechanism, the weft feeder (107) is fixedly installed on one side of the weaving frame (101), the nozzle assembly (108) is fixedly installed on the side of the weaving frame (101) near the weft feeder (107), and the fabric removal device (105) is fixedly installed on the side of the weaving frame (101) near the shed (106). A weft cutting device (2) is fixedly installed on the side of the weaving frame (101) near the nozzle assembly (108). Two sets of selvage trimming devices (3) are symmetrically fixed on the weaving frame (101); The weft cutting device (2) includes a motor mounting plate (201), a guide rail (202), a slider (203), a slider mounting plate (204), a scissor mounting plate (205), pneumatic scissors (206), a notch-enhancing blade (207), a drive motor (208), a scissor cam (209), a cam connecting shaft (210), a fisheye connector (211), and a fixed connecting shaft (212). The motor mounting plate (201) is fixedly mounted on the side of the weaving frame (101) near the nozzle assembly (108), the guide rail (202) is fixedly mounted on the motor mounting plate (201), and the scissor mounting plate (205) is fixedly mounted on the slider (203). The slider (203) moves linearly and reciprocally along the guide rail (202). The drive motor (208) is fixedly mounted on the motor mounting plate (201). The scissor cam (209) is fixedly mounted on the shaft end of the drive motor (208). The cam connecting shaft (210) is fixedly mounted on the scissor cam (209). The fixed connecting shaft (212) is fixedly mounted on the scissor mounting plate (205). The two sets of fisheye connectors (211) are movably connected to the cam connecting shaft (210) and the fixed connecting shaft (212) respectively. The notch-filling blade (207) is fixedly mounted on the pneumatic scissors (206) by fastening screws. When the pneumatic shears fail to cut the weft thread, the notched supplementary blade performs a secondary cut on the weft thread during the retraction action; The selvage processing device (3) includes a fixed support (301), a frame (302), a workbench (303), an auxiliary plate (304), a selvage locker (305), a leveling synchronous belt assembly (306), an auxiliary fabric output pressure roller (314), an upper corner automatic stretching assembly (315), and a lower corner automatic stretching assembly (327). The fixed support (301) is fixedly mounted on the weaving machine frame (101), the frame (302) is fixedly mounted on the fixed support (301), the workbench (303) is fixedly mounted on the frame (302), and the auxiliary plate (304) is movably mounted on the frame (302). On the upper side of the workbench (303) on the machine frame (302), the edge locking device (305) is fixedly installed on the upper side of the auxiliary plate (304) on the machine frame (302), the leveling synchronous belt assembly (306) is movably installed on the machine frame (302) and moves vertically up and down along the edge locking device (305); the upper (315) and lower (327) of the corner automatic stretching assembly are fixedly installed on the machine frame (302) near the fabric removal device (105), and the auxiliary fabric output pressure roller (314) is fixedly installed on the machine frame (302) away from the upper (315) of the corner automatic stretching assembly.

2. The air-jet loom combining the weft cutting device and selvage device according to claim 1, characterized in that, The leveling synchronous belt assembly (306) includes a cylinder support plate (307), a flat cylinder (308), a leveling motor support plate (309), a leveling motor (310), a main pulley (311), a synchronous pulley (312), and a synchronous belt (313). The cylinder support plate (307) is fixedly mounted on the frame (302), the flat cylinder (308) is fixedly mounted on the cylinder support plate (307), the leveling motor support plate (309) is fixedly mounted on the flat cylinder (308), the leveling motor (310) is fixedly mounted on the leveling motor support plate (309), the main pulley (311) is fixedly mounted on the shaft end of the leveling motor (310), and multiple sets of synchronous pulleys (312) are provided, which are movably mounted on the leveling motor support plate (309) through shaft connection and are movably connected to the main pulley (311) through the synchronous belt (313).

3. The air-jet loom combining the weft cutting device and the selvage device according to claim 2, characterized in that, The automatic corner stretching assembly (315) includes an upper base (316), a corner support arm (317), a corner support rod (318), an upper corner shaft (319), an upper stretching motor base (320), an upper stretching motor (321), an upper elastic convex corner rotor (322), a cylinder shaft base (323), a cylinder shaft (324), an upper corner cylinder (325), and an upper cylinder support rod (326). The upper base (316) is fixedly mounted on the frame (302), the corner support arm (317) is fixedly mounted on the upper base (316), and the corner support rod (318) is movably mounted on the corner support arm (317) via the upper corner shaft (319). The upper tension motor seat (320) is fixedly mounted on the corner support rod (318), the upper tension motor (321) is fixedly mounted on the upper tension motor seat (320), the upper elastic convex corner head (322) is fixedly mounted on the shaft end of the upper tension motor (321), the cylinder shaft seat (323) is movably mounted on the upper base (316) through the cylinder shaft (324), the upper corner cylinder (325) is fixedly mounted on the cylinder shaft seat (323), one end of the upper cylinder support rod (326) is fixedly mounted on the corner support rod (318), and the other end is movably mounted on the upper corner cylinder (325) through a fisheye joint.

4. The air-jet loom combining the weft cutting device and selvage device according to claim 3, characterized in that, The lower (327) of the automatic corner stretching assembly includes a lower base (328), a supporting right angle (329), a lower corner shaft (330), a lower stretching motor seat (331), a lower stretching motor (332), a lower elastic convex corner rotor (333), a lower corner cylinder (334), a lower cylinder support rod (335), a conformal wheel (336), a conformal wheel seat (337), and a sensing probe (338). The lower base (328) is fixedly mounted on the frame (302), the supporting right angle (329) is fixedly mounted on the lower base (328), the lower corner shaft (330) is movably mounted on the supporting right angle (329) via a bearing, and the lower stretching motor seat (331) is fixedly mounted on the lower corner shaft (330). The lower stretching motor (332) is fixedly mounted on the lower stretching motor base (331), the lower elastic convex angle rotating head (333) is fixedly mounted on the shaft end of the lower stretching motor (332), the lower angle cylinder (334) is fixedly mounted on the lower base (328), one end of the lower cylinder support rod (335) is movably hinged to the shaft end of the lower angle cylinder (334), and the other end is fixedly mounted on the lower angle shaft (330), the conformal rotating wheel base (337) is fixedly mounted on the lower base (328), the conformal rotating wheel (336) is fixedly mounted on the conformal rotating wheel base (337), and the sensing probe (338) is fixedly mounted on the supporting right angle (329) and is located on the upper side of the conformal rotating wheel (336).

5. The air-jet loom combining the weft cutting device and selvage device according to claim 4, characterized in that, The air-jet loom combining the weft cutting device and the selvage device also includes a plastic rounded corner combing device (4). The plastic rounded corner combing device (4) includes a base (401), an auxiliary support arm cylinder (402), an auxiliary support arm cylinder seat (403), an auxiliary support arm (404), a fabric inlet groove (405), a fabric inlet groove cylinder (406), a combing shaft support frame (407), a plastic rounded corner combing shaft (408), and a combing shaft motor (409). The base (401) is fixedly installed on one side of the fabric removal device (105). Two sets of auxiliary support arm cylinders (402) are provided and fixedly installed on the base (401). The auxiliary support arm cylinder seat (403) is fixedly installed on the auxiliary support arm (404). The auxiliary support arm (404) is movably mounted on the auxiliary support arm cylinder seat (403) at the shaft end of the support arm cylinder (402). Two sets of feed trough cylinders (406) are provided and fixedly mounted on the base (401). The feed trough (405) is fixedly mounted on the shaft end of the feed trough cylinder (406). Two sets of combing shaft support frames (407) are provided and fixedly mounted on the base (401). The plastic rounded corner combing shaft (408) is movably mounted on the combing shaft support frame (407) through bearings. The combing shaft motor (409) is fixedly mounted on the combing shaft support frame (407) and fixedly connected to one end of the plastic rounded corner combing shaft (408).

6. The air-jet loom combining the weft cutting device and selvage device according to claim 5, characterized in that, The air-jet loom combining the weft cutting device and selvage device also includes a portable fabric roller frame (5), which includes a support frame (501), a rotary motor (502), a main rotating support arm (503), a roller (504), an auxiliary roller (505), a rocker arm seat (506), a rocker arm (507), a pinion (508), a toothed rotating shaft (509), a toothed rotating nut (510), and a movable support arm (511). The support frame (501) is fixedly mounted on the base (401) near the plastic rounded corner combing shaft (408), the rotary motor (502) is fixedly mounted on the support frame (501), and the main rotating support arm (503) is fixedly mounted on the support frame (501) and connected to the rotary motor (504) via a belt. 502) Movable connection: The toothed rotating shaft (509) is movably mounted on the support frame (501) via a bearing; the movable support arm (511) is sleeved on the toothed rotating shaft (509) via the toothed rotating nut (510) and movably connected to the toothed rotating shaft (509); the roller (504) is movably mounted between the main rotating support arm (503) and the movable support arm (511); the auxiliary roller (505) is movably mounted on the support frame (501) via a bearing; the rocker arm seat (506) is fixedly mounted on the support frame (501); the rocker arm (507) is movably mounted inside the rocker arm seat (506) via a bearing; and the pinion (508) is fixedly mounted on the rocker arm (507) near the toothed rotating shaft (509).

7. The method of using the air-jet loom combining the weft cutting device and selvage device according to claim 6, comprising the following steps: S1. The drive motor (208) drives the scissor cam (209) to rotate, thereby driving the pneumatic scissors (206) to move linearly and reciprocally along the guide rail (202) to the weft cutting position. The pneumatic scissors (206) are connected to an external air source and open and close intermittently under the control of the solenoid valve to realize the weft cutting action. When the scissors are worn and the scissors have not cut the weft, the notch-filled blade (207) cuts the weft a second time during the retraction action. When replacing the scissors, the scissor mounting plate (205) is completely removed and replaced, and the notch-filled blade (207) is replaced. S2. The flat cylinder (308) drives the leveling motor support plate (309) to move downward. The synchronous belt (313) is parallel to the fabric and presses evenly on the fabric. The leveling motor (310) rotates and drives the belt to move forward at a constant speed through the main pulley (311) and the synchronous pulley (312). S3. The upper corner cylinder (325) drives the corner support rod (318) to rotate along the upper corner axis (319) through the upper cylinder support rod (326), and the upper tension motor (321) drives the upper elastic convex corner rotor (322) to rotate. S4. The lower angle cylinder (334) drives the lower angle shaft (330) and the lower tension motor seat (331) to rotate through the lower cylinder support rod (335); the lower tension motor (332) drives the lower elastic convex angle rotor (333) to rotate. S5. The auxiliary support arm cylinder (402) drives the auxiliary support arm (404) to move up and down to adjust the fabric to the height position. The fabric inlet cylinder (406) drives the fabric inlet (405) to move forward and the fabric enters the fabric inlet (405). The fabric inlet cylinder (406) drives the fabric inlet (405) to move backward. The combing shaft motor (409) drives the plastic rounded corner combing shaft (408) to rotate. S6. The rotary motor (502) pulls the roller (504) to rotate and wind the fabric via a belt. When changing the roller (504) of different lengths, the rocker arm (507) is rotated, thereby driving the toothed shaft (509) to rotate through the meshing transmission of the pinion (508) and the toothed shaft (509). This, in turn, drives the movable support arm (511) to move linearly along the axial direction of the toothed shaft (509) via the toothed rotating nut (510).

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