A pass opening device for weaving and a method of using the same

Abstract

This invention discloses an opening device and its method of use for weaving channel fabric, relating to the field of weaving technology. It includes a frame, opening shuttles, a guiding mechanism, and an adjusting mechanism. The frame has a movable cavity on its front side, with the opening shuttles symmetrically arranged inside the cavity. A sliding mechanism is provided between the opening shuttles and the frame, and a synchronization mechanism is provided between the two opening shuttles. The guiding mechanism is located on the front side of the frame, and the adjusting mechanism is located on the front side of the guiding mechanism. This invention, through the cooperation of a telescopic cylinder, a first synchronous wheel, a first synchronous belt, and a fixing block, enables the two opening shuttles to move synchronously towards or away from each other, maintaining the stability of the opening center while changing the opening spacing. This solves the problems of traditional single-sided opening adjustment easily causing wire harness offset and uneven channel width.

Description

Technical Field

[0001] This invention relates to the field of weaving technology, and in particular to an opening device for weaving channel fabric and its method of use. Background Technology

[0002] Channel fabric is a type of functional fabric that forms continuous or spaced channel structures within the fabric. It is typically used for applications such as down filling, flow guidance, compartmentalization, support, or zoned filling. During the weaving process of channel fabric, an opening device is needed to guide the warp yarns, separator bundles, or auxiliary forming bundles in layers, creating opening spaces in the weaving area that meet the channel width requirements. The size and positional stability of these opening spaces directly affect the forming dimensions of the channels within the channel fabric, the straightness of the channel boundaries, and the subsequent filling or usage effects.

[0003] In existing channel fabric weaving equipment, the opening device mostly adopts a single-sided moving structure. That is, a drive mechanism moves one opening component up, down, or swings, while the other opening component remains fixed, thereby changing the opening distance between the two. Although this type of structure can adjust the opening size, during the adjustment process, the center position of the opening area will shift as the moving opening component moves, causing the force direction of the yarn entering the opening area to change. This can easily lead to problems such as yarn skew, asymmetrical opening boundaries, and uneven channel width.

[0004] Especially when weaving channel fabric with multiple parallel channels, the yarn bundles at different positions need to maintain a relatively stable opening height and tension. If the opening center shifts, the yarn bundles on the side closer to the movable opening piece are easily overstretched, while the yarn bundles on the side farther from the movable opening piece may become slack. This can lead to narrowing, bulging, skewed boundaries, or inconsistent compartment widths in the channel layout, affecting the product forming quality. To address this, we propose an opening device for channel fabric weaving and its usage method. Summary of the Invention

[0005] The purpose of this invention is to provide an opening device for weaving channel fabric and a method of using it, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an opening device for weaving channel fabric, comprising:

[0007] frame;

[0008] An open shuttle plate is provided, with a movable cavity opened on the front of the frame. The open shuttle plates are symmetrically arranged inside the movable cavity. A sliding mechanism is provided between the open shuttle plates and the frame, and a synchronization mechanism is provided between the two open shuttle plates.

[0009] A guiding mechanism is disposed on the front side of the frame;

[0010] An adjustment mechanism is provided on the front side of the guide mechanism.

[0011] Preferably, the sliding mechanism includes:

[0012] The first slider is fixedly connected to both sides of the open shuttle plate, and the synchronization mechanism is disposed between two adjacent first sliders;

[0013] The first slide groove is formed on the inner wall of the movable cavity, and the outer wall of the first slider is slidably connected to the inner wall of the first slide groove.

[0014] Preferably, the synchronization mechanism includes:

[0015] The first synchronous pulley is symmetrically rotatably disposed on the outer wall of the frame;

[0016] A first synchronous belt is provided, wherein the first synchronous belt drive is disposed between the two first synchronous pulleys;

[0017] A fixing block is fixedly connected to the outer wall of the first slider, and the outer wall of the fixing block is fixedly connected to the inner wall of the first synchronous belt.

[0018] A telescopic cylinder is installed at the top of the frame, and the output end of the telescopic cylinder is connected to the top of the open shuttle plate located above.

[0019] Preferably, the guiding mechanism includes:

[0020] Side plates, which are symmetrically and fixedly connected to the front of the frame, and the adjustment mechanism is disposed between the two side plates;

[0021] A guide roller is symmetrically rotatably disposed between the two side plates.

[0022] Preferably, the adjustment mechanism includes:

[0023] The first guide roller is symmetrically arranged between the two side plates;

[0024] The second guide roller is symmetrically arranged between the two side plates, and a moving mechanism is provided between the second guide roller, the first guide roller and the side plates.

[0025] Preferably, the moving mechanism includes:

[0026] The second slide groove is formed on the outer wall of the side plate;

[0027] The second slider is rotatably connected between the first and second guide rollers.

[0028] Preferably, the outer wall of the second slider is fixedly connected to a first connecting block, the inner wall of the second slide groove is provided with a first connecting groove, the outer wall of the first connecting block is slidably connected to the inner wall of the first connecting groove, the outer wall of the first connecting block is fixedly connected to a second connecting block, the inner wall of the first connecting groove is provided with a second connecting groove, and the outer wall of the second connecting block is slidably connected to the inner wall of the second connecting groove.

[0029] Preferably, the outer wall of the first connecting block is provided with a first ball groove, and the inner wall of the first ball groove is movably fitted with a first rolling ball. The outer wall of the first rolling ball is fitted with the inner wall of the first connecting groove. The outer wall of the second connecting block is provided with a second ball groove, and the inner wall of the second ball groove is movably fitted with a second rolling ball. The outer wall of the second rolling ball is fitted with the inner wall of the second connecting groove.

[0030] Preferably, a rack is fixedly connected to the outer wall of the second slider, a gear is meshed between the two racks, a connecting shaft is fixedly connected to the outer wall of the gear, a second synchronous pulley is fixedly connected to one end of the connecting shaft, a base plate is fixedly connected to the bottom end of the side plate, a connecting rod is rotatably connected between the two base plates, a third synchronous pulley is fixedly connected to both ends of the connecting rod, a second synchronous belt is provided for transmission between the third synchronous pulley and the second synchronous pulley, a mounting plate is fixedly connected to the outer wall of the side plate, a servo motor is mounted on the top end of the mounting plate, and the output end of the servo motor is meshed with the outer wall of the second synchronous pulley.

[0031] A method of using an opening device for weaving a channel fabric includes:

[0032] The telescopic cylinder moves the upper open shuttle plate, which in turn moves the corresponding first slider. The first slider moves the corresponding fixed block, which in turn moves the first synchronous belt between the two first synchronous pulleys. The rotation of the first synchronous pulley moves the other fixed block, which in turn moves the lower open shuttle plate, thus adjusting the distance between the two open shuttle plates.

[0033] The servo motor drives the corresponding second synchronous pulley to rotate. Then, through the connection of the second synchronous belt and the third synchronous pulley, the two gears rotate synchronously, which causes the two racks to move. This, in turn, drives the corresponding second slider to move, thereby adjusting the longitudinal distance between the first and second guide rollers and thus completing the tension adjustment.

[0034] The technical effects and advantages of this invention are as follows:

[0035] (1) The present invention enables two open shuttle plates to move synchronously towards or away from each other by means of the cooperation of telescopic cylinder, first synchronous wheel, first synchronous belt and fixed block, and keeps the center of the opening stable while changing the opening spacing, thus solving the problem that traditional single-sided opening adjustment is prone to cause wire harness offset and uneven channel width.

[0036] (2) The present invention enables the first and second guide rollers to be adjusted synchronously on both sides by the cooperation of gears, racks, second synchronous pulleys, third synchronous pulleys, second synchronous belts and connecting rods, ensuring that the axes of the guide rollers are parallel, thereby improving the tension consistency in the width direction of the channel cloth.

[0037] (3) The present invention forms a multi-level limiting sliding structure through the first connecting block and the second connecting block, and reduces sliding friction with the first rolling ball and the second rolling ball, so that the adjustment mechanism can still move smoothly when subjected to the tension of the yarn bundle, reducing adjustment jamming and component wear, and improving the stability of the device during continuous weaving. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention;

[0040] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;

[0041] Figure 3 This is a schematic diagram of the three-dimensional structure of the open shuttle plate of the present invention;

[0042] Figure 4 This is a top sectional view of the first connecting block of the present invention;

[0043] Figure 5 For the present invention Figure 1 A magnified view of part A.

[0044] In the attached diagram: 101, frame; 201, movable cavity; 202, open shuttle plate; 203, first slide groove; 204, first slider; 205, first synchronous pulley; 206, first synchronous belt; 207, fixed block; 208, telescopic cylinder; 301, side plate; 302, guide roller; 401, first thread guide roller; 402, second thread guide roller; 501, second slide groove; 502, second slider; 503, first connecting groove; 50 4. First connecting block; 505. Second connecting groove; 506. Second connecting block; 601. First ball groove; 602. First rolling ball; 603. Second ball groove; 604. Second rolling ball; 701. Rack; 702. Gear; 703. Connecting shaft; 704. Second synchronous pulley; 705. Base plate; 706. Connecting rod; 707. Third synchronous pulley; 708. Second synchronous belt; 709. Mounting plate; 710. Servo motor. Detailed Implementation

[0045] 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.

[0046] This invention provides, for example Figures 1-5 The diagram illustrates an opening device for weaving a channel fabric, comprising a frame 101, opening shuttles 202, a guiding mechanism, and an adjusting mechanism. The frame 101 has a movable cavity 201 on its front side. The opening shuttles 202 are symmetrically arranged inside the movable cavity 201. A sliding mechanism is provided between the opening shuttles 202 and the frame 101, and a synchronization mechanism is provided between the two opening shuttles 202. The guiding mechanism is located on the front side of the frame 101, and the adjusting mechanism is located on the front side of the guiding mechanism. In practice, warp yarns, weft traction yarns, or dividing yarn bundles used to form the down filling channel for weaving the channel fabric can be introduced into the front of the frame 101 by the guiding mechanism and pass through the opening area between the two opening shuttles 202. The two opening shuttles 202 are used to separate the yarn bundles vertically during weaving, enabling the formation of a stable channel opening inside the channel fabric. By setting the two opening shuttles 202 as a symmetrical moving structure, unilateral opening can prevent yarn bundle skewing or opening center offset, thereby improving the consistency of the channel width in the channel fabric.

[0047] The sliding mechanism includes a first slider 204 and a first groove 203. The first slider 204 is fixedly connected to both sides of the open shuttle plate 202. A synchronization mechanism is disposed between two adjacent first sliders 204. The first groove 203 is formed in the inner wall of the movable cavity 201. The outer wall of the first slider 204 is slidably connected to the inner wall of the first groove 203. The first groove 203 extends along the moving direction of the open shuttle plate 202, so that the open shuttle plate 202 can only move in a predetermined direction during the lifting and lowering adjustment process, preventing the open shuttle plate 202 from swaying back and forth or shifting laterally when affected by the tension of the yarn bundle or weaving vibration. Through the cooperation of the first slider 204 and the first groove 203, the stability of the open shuttle plate 202 during movement can be improved, and the boundary of the opening gap formed between the two open shuttle plates 202 can be kept neat.

[0048] The synchronization mechanism includes a first synchronous pulley 205, a first synchronous belt 206, a fixing block 207, and a telescopic cylinder 208. The first synchronous pulleys 205 are symmetrically rotatably mounted on the outer wall of the frame 101. The first synchronous belt 206 is driven between the two first synchronous pulleys 205. The fixing blocks 207 are respectively fixedly connected to the outer wall of the first slider 204, and the outer wall of the fixing block 207 is fixedly connected to the inner wall of the first synchronous belt 206. The telescopic cylinder 208 is installed at the top of the frame 101, and its output end is connected to the upper... The top of the open shuttle 202 is connected to a drive mechanism. In specific implementation, the fixing blocks 207 connected to the upper and lower open shuttles 202 respectively can be fixed on the opposite running sections of the first synchronous belt 206, so that when one fixing block 207 moves upward with the first synchronous belt 206, the other fixing block 207 moves downward synchronously. When the telescopic cylinder 208 drives the upper open shuttle 202 to move, the lower open shuttle 202 can move in the opposite direction synchronously under the drive of the first synchronous wheel 205 and the first synchronous belt 206. Thus, the two open shuttles 202 can be adjusted to face or move away from each other, so that the center position remains relatively stable when the opening distance expands or shrinks, avoiding the problem of the entire opening area shifting upward or downward when only a single open shuttle is driven.

[0049] The guiding mechanism includes side plates 301 and guide rollers 302. The side plates 301 are symmetrically fixed to the front of the frame 101. An adjusting mechanism is located between the two side plates 301. The guide rollers 302 are symmetrically rotatably positioned between the two side plates 301. The guide rollers 302 support and guide the thread bundle or fabric before it enters the opening area, ensuring the thread bundle remains basically straight before entering the opening shuttle 202, reducing localized wear caused by the thread bundle being directly pulled by the opening shuttle 202. The two side plates 301 not only mount the guide rollers 302 but also form the mounting reference for the adjusting mechanism, allowing the two ends of the thread guide rollers to move synchronously at the same height reference, thereby ensuring uniform tension in the width direction of the channel fabric.

[0050] The adjustment mechanism includes a first guide roller 401 and a second guide roller 402. The first guide roller 401 is symmetrically arranged between two side plates 301, and the second guide roller 402 is also symmetrically arranged between the two side plates 301. A moving mechanism is provided between the second guide roller 402, the first guide roller 401, and the side plates 301. The first guide roller 401 and the second guide roller 402 are used to change the winding path of the yarn bundle or fabric at the guide mechanism. By adjusting the longitudinal distance between the first guide roller 401 and the second guide roller 402, the wrap angle and equivalent stroke length of the yarn bundle when it passes over the guide rollers can be changed, thereby achieving fine adjustment of the weaving tension. Compared with simply relying on traction speed to adjust tension, this structure can mechanically compensate for the tension of the yarn bundle at the front end of the opening without changing the main weaving rhythm. It is suitable for weaving channel fabrics with different thicknesses, different channel widths, or different elastic yarn bundles.

[0051] The moving mechanism includes a second slide groove 501 and a second slider 502. The second slide groove 501 is formed on the outer wall of the side plate 301. The first thread guide roller 401 and the second thread guide roller 402 are rotatably connected between the two second sliders 502. The second slide groove 501 extends along the adjustment direction of the first thread guide roller 401 and the second thread guide roller 402. When the second slider 502 slides in the second slide groove 501, it can drive the corresponding thread guide roller to move up and down as a whole. Since the two ends of the first thread guide roller 401 and the second thread guide roller 402 are respectively installed between the second sliders 502 on both sides, the synchronous movement of the second sliders 502 on both sides can ensure that the axis of the thread guide roller is always parallel to the guide roller 302, avoiding the uneven tension in the width direction of the channel cloth caused by one end of the thread guide roller being higher than the other.

[0052] The second slider 502 has a first connecting block 504 fixedly connected to its outer wall. The inner wall of the second slide groove 501 has a first connecting groove 503. The outer wall of the first connecting block 504 is slidably connected to the inner wall of the first connecting groove 503. A second connecting block 506 is fixedly connected to the outer wall of the first connecting block 504. The inner wall of the first connecting groove 503 has a second connecting groove 505. The outer wall of the second connecting block 506 is slidably connected to the inner wall of the second connecting groove 505. The cooperation between the first connecting block 504 and the first connecting groove 503, and between the second connecting block 506 and the second connecting groove 505, together form a multi-level limiting sliding structure, making it difficult for the second slider 502 to disengage from the second slide groove 501 when subjected to the pressure of the thread roller and the tension of the wire harness. This multi-level nested limiting structure also improves the torsional resistance of the second slider 502 and reduces jamming and tilting caused by single-point force during the adjustment of the thread roller.

[0053] The first connecting block 504 has a first ball groove 601 on its outer wall, and a first rolling ball 602 is movably engaged on the inner wall of the first ball groove 601. The outer wall of the first rolling ball 602 fits against the inner wall of the first connecting groove 503. The second connecting block 506 has a second ball groove 603 on its outer wall, and a second rolling ball 604 is movably engaged on the inner wall of the second ball groove 603. The outer wall of the second rolling ball 604 fits against the inner wall of the second connecting groove 505. The first rolling ball 602 and the second rolling ball 604 are used to convert the surface contact friction between the first connecting block 504, the second connecting block 506 and the corresponding connecting groove into rolling friction, thereby reducing the resistance when the second slider 502 moves. When the yarn tension is large or the weaving speed is high, the guide roller is easily subjected to continuous tension. By setting the rolling ball structure, the second slider 502 can still be adjusted smoothly, avoiding adjustment lag caused by excessive sliding resistance. At the same time, it can also reduce the wear of the inner wall of the connecting groove and improve the service life of the adjustment mechanism.

[0054] The second slider 502 has a rack 701 fixedly connected to its outer wall, and a gear 702 meshes between the two racks 701. A connecting shaft 703 is fixedly connected to the outer wall of the gear 702, and a second synchronous pulley 704 is fixedly connected to one end of the connecting shaft 703. A base plate 705 is fixedly connected to the bottom end of the side plate 301, and a connecting rod 706 is rotatably connected between the two base plates 705. A third synchronous pulley 707 is fixedly connected to both ends of the connecting rod 706, and a second synchronous belt 708 drives the transmission between the third synchronous pulley 707 and the second synchronous pulley 704. A mounting plate 7 is fixedly connected to the outer wall of the side plate 301. 09. A servo motor 710 is mounted on the top of the mounting plate 709. The output end of the servo motor 710 is meshed with the outer wall of the second synchronous wheel 704. In specific implementation, two racks 701 are respectively set on opposite sides of the gear 702 and are respectively connected to the second slider 502 corresponding to the first thread guide roller 401 and the second slider 502 corresponding to the second thread guide roller 402. When the gear 702 rotates, the two racks 701 can move synchronously in opposite directions, thereby driving the first thread guide roller 401 and the second thread guide roller 402 to move closer to each other or further away from each other, realizing the synchronous adjustment of the longitudinal distance between the two thread guide rollers. The connecting rod 706 is connected to the second synchronous wheels 704 on both sides through the third synchronous wheels 707 at both ends and the second synchronous belt 708, so that the gears 702 on the two side plates 301 can rotate synchronously, thereby ensuring that the two ends of the same thread guide roller rise and fall synchronously, preventing the thread guide roller from swaying during the adjustment process.

[0055] A method of using an opening device for weaving a channel fabric includes:

[0056] The telescopic cylinder 208 moves the upper open shuttle 202, which in turn moves the corresponding first slider 204. The first slider 204 then moves the corresponding fixed block 207, which in turn moves the first synchronous belt 206 between two first synchronous pulleys 205. The rotation of the first synchronous pulleys 205 moves the other fixed block 207, which in turn moves the lower open shuttle 202, thus adjusting the distance between the two open shuttles 202. During this process, the upper and lower open shuttles 202 are linked by the first synchronous belt 206, allowing them to move synchronously in opposite directions, thus adjusting the opening width according to the weaving specifications of the channel fabric. When a wider channel needs to be woven, the two open shuttles 202 move in opposite directions to increase the opening distance; when a narrower channel needs to be woven, the two open shuttles 202 move towards each other to decrease the opening distance. Since the opening center remains basically stable during the opening adjustment process, the offset of the wire harness in the opening area can be reduced, thereby improving the positional accuracy of the subsequent weaving forming channel.

[0057] The servo motor 710 drives the corresponding second synchronous pulley 704 to rotate. Then, through the second synchronous belt 708 and the third synchronous pulley 707, the connecting rod 706 connects, causing the two gears 702 to rotate synchronously. This moves the two racks 701, which in turn moves the corresponding second slider 502, thereby adjusting the longitudinal distance between the first and second thread guide rollers 401 and 402, thus adjusting the tension. Specifically, when the distance between the first and second thread guide rollers 401 increases, the path of the thread bundle or fabric is lengthened, and the tension increases accordingly; when the distance between the first and second thread guide rollers 401 decreases, the path of the thread bundle or fabric is shortened, and the tension decreases accordingly. By driving the gears 702 and racks 701 synchronously with the servo motor 710, the thread guide rollers on both sides can move synchronously and parallel, avoiding uneven tension caused by manual unilateral adjustment. This tension adjustment method can be used in conjunction with the opening spacing adjustment of the opening shuttle 202, so that the channel fabric can maintain a stable opening and uniform tension under different channel widths, different number of yarn bundles and different weaving speeds.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An opening device for the weaving of passages, characterized in that include: Rack (101); An open shuttle plate (202) is provided. The front of the frame (101) is provided with a movable cavity (201). The open shuttle plates (202) are symmetrically arranged inside the movable cavity (201). A sliding mechanism is provided between the open shuttle plates (202) and the frame (101). A synchronization mechanism is provided between the two open shuttle plates (202). A guiding mechanism is disposed on the front side of the frame (101); An adjustment mechanism is provided on the front side of the guide mechanism.

2. An opening device for use in the weaving of a channel according to claim 1, characterized in that The sliding mechanism includes: The first slider (204) is fixedly connected to both sides of the open shuttle plate (202), and the synchronization mechanism is disposed between two adjacent first sliders (204); The first slide groove (203) is formed on the inner wall of the movable cavity (201), and the outer wall of the first slider (204) is slidably connected to the inner wall of the first slide groove (203).

3. An opening device for use in the weaving of a channel according to claim 2, characterized in that The synchronization mechanism includes: The first synchronous pulley (205) is symmetrically rotatably disposed on the outer wall of the frame (101); A first synchronous belt (206) is driven between two first synchronous pulleys (205); Fixed blocks (207) are fixedly connected to the outer wall of the first slider (204), and the outer wall of the fixed blocks (207) is fixedly connected to the inner wall of the first synchronous belt (206); Telescopic cylinder (208) is installed at the top of the frame (101), and the output end of the telescopic cylinder (208) is connected to the top of the open shuttle plate (202) located above.

4. The opening device for weaving channel fabric according to claim 1, characterized in that, The guiding mechanism includes: Side plates (301) are symmetrically fixed to the front of the frame (101), and the adjustment mechanism is disposed between the two side plates (301). Guide roller (302) is symmetrically rotatably disposed between the two side plates (301).

5. The opening device for weaving channel fabric according to claim 4, characterized in that, The adjustment mechanism includes: The first guide roller (401) is symmetrically arranged between the two side plates (301); The second thread guide roller (402) is symmetrically arranged between the two side plates (301), and a moving mechanism is provided between the second thread guide roller (402), the first thread guide roller (401) and the side plates (301).

6. The opening device for weaving channel fabric according to claim 5, characterized in that, The moving mechanism includes: The second slide groove (501) is formed on the outer wall of the side plate (301); The second slider (502) is rotatably connected between the first thread guide roller (401) and the second thread guide roller (402).

7. The opening device for weaving channel fabric according to claim 6, characterized in that, The outer wall of the second slider (502) is fixedly connected to the first connecting block (504), the inner wall of the second slide groove (501) is provided with the first connecting groove (503), the outer wall of the first connecting block (504) is slidably connected to the inner wall of the first connecting groove (503), the outer wall of the first connecting block (504) is fixedly connected to the second connecting block (506), the inner wall of the first connecting groove (503) is provided with the second connecting groove (505), and the outer wall of the second connecting block (506) is slidably connected to the inner wall of the second connecting groove (505).

8. The opening device for weaving channel fabric according to claim 7, characterized in that, The outer wall of the first connecting block (504) is provided with a first ball groove (601), and the inner wall of the first ball groove (601) is movably fitted with a first ball (602). The outer wall of the first ball (602) is fitted with the inner wall of the first connecting groove (503). The outer wall of the second connecting block (506) is provided with a second ball groove (603), and the inner wall of the second ball groove (603) is movably fitted with a second ball (604). The outer wall of the second ball (604) is fitted with the inner wall of the second connecting groove (505).

9. The opening device for weaving channel fabric according to claim 6, characterized in that, A rack (701) is fixedly connected to the outer wall of the second slider (502), and a gear (702) meshes between the two racks (701). A connecting shaft (703) is fixedly connected to the outer wall of the gear (702), and a second synchronous pulley (704) is fixedly connected to one end of the connecting shaft (703). A base plate (705) is fixedly connected to the bottom end of the side plate (301), and a connecting rod (706) is rotatably connected between the two base plates (705). A third synchronous pulley (707) is fixedly connected to both ends of the connecting rod (706). A second synchronous belt (708) is provided for transmission between the third synchronous pulley (707) and the second synchronous pulley (704). A mounting plate (709) is fixedly connected to the outer wall of the side plate (301), and a servo motor (710) is mounted on the top of the mounting plate (709). The output end of the servo motor (710) meshes with the outer wall of the second synchronous pulley (704).

10. A method of using the opening device for weaving channel fabric according to claims 1 to 9, characterized in that, include: The telescopic cylinder (208) drives the upper open shuttle plate (202) to move. The movement of the open shuttle plate (202) drives the corresponding first slider (204) to move. The movement of the first slider (204) drives the corresponding fixed block (207) to move. The movement of the fixed block (207) drives the first synchronous belt (206) to rotate between the two first synchronous pulleys (205). The rotation of the first synchronous pulley (205) can drive the other fixed block (207) to move, thereby driving the lower open shuttle plate (202) to move, so that the distance between the two open shuttle plates (202) can be adjusted. The servo motor (710) drives the corresponding second synchronous pulley (704) to rotate. Then, through the connection of the second synchronous belt (708) and the third synchronous pulley (707) and the connecting rod (706), the two gears (702) rotate synchronously, which causes the two racks (701) to move. Then, the corresponding second slider (502) moves, thereby adjusting the longitudinal distance between the first thread roller (401) and the second thread roller (402), thus completing the tension adjustment.

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