A tension-compensating traction device for acupuncture machines

Abstract

The present invention discloses a tension-compensating traction device of a needling machine, comprising a traction seat, an upper traction roller and a lower traction roller rotatably mounted on the traction seat, the upper traction roller and the lower traction roller being driven by a driving seat to rotate in opposite directions, a friction wheel being fixedly mounted on the roller shaft on the other side of the upper traction roller, a lifting rod being lifted and lowered on the traction seat by two lifting seats, and a weight-adjustable counterweight structure being arranged on the lifting seat close to the friction wheel, a hanging structure for driving a pulley group being arranged on the side of the traction seat close to the friction wheel, a friction plate being connected to the hanging structure, and a cleaning structure with a static electricity removal function being further connected to the lifting seat; the traction device of the present invention can autonomously adjust the tension of the cloth according to the traction speed, so that the cloth is always kept in an optimal conveying state, thereby ensuring the needling effect.

Description

Technical Field

[0001] The invention relates to the technical field of cloth processing, in particular to a tension-compensating traction device for a needling machine. Background Art

[0002] Needling machines are commonly used in the processing of nonwoven materials, and the needling mechanism is a key component. Generally speaking, the more needling passes per unit time and the higher the needling density, the better the web quality and higher the production efficiency. Furthermore, the uniformity of the needling per unit length is also crucial. Therefore, current needlepunch production lines often require stable traction and conveying of nonwoven materials.

[0003] Most current needle looms are equipped with a traction mechanism to generate tension to move the fabric, achieving a streamlined production process. However, these traction mechanisms often have the following issues: The traction force is typically determined by the rotational speed of the traction rollers. When the traction rollers are running at high speeds, the traction force can provide sufficient tension on the fabric. However, when the traction rollers slow down, the fabric becomes insufficiently tensile, causing slack and, consequently, unstable needle punching performance. Summary of the Invention

[0004] The object of the present invention is to provide a tension-compensating traction device for a needle loom, so as to automatically adjust the tension of the cloth according to the magnitude of the traction force, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tension-compensated traction device for a needling machine, comprising a traction seat, an upper traction roller and a lower traction roller are rotatably mounted on the traction seat, and the upper traction roller and the lower traction roller are installed through roller shafts, and the roller shafts on one side of the upper traction roller and the lower traction roller are connected to the driving seat, and the upper traction roller and the lower traction roller are driven by the driving seat to rotate in opposite directions, the traction seat is fixedly connected to the main body of the needling machine, and a transmission platform is provided on the main body of the needling machine to cooperate with the traction seat to pull the cloth, a friction wheel is fixedly mounted on the roller shaft on the other side of the upper traction roller, and the traction seat is lifted and lowered by two lifting seats. The lifting rod is installed in a lifting manner, and the jacking rod is located at the front end of the upper traction roller and the lower traction roller, and a weight-adjustable counterweight structure is provided on the lifting seat near the friction wheel, and the center of gravity of the jacking rod is regulated by the counterweight structure. A hanging structure that drives the pulley group is provided on the side of the traction seat near the friction wheel, and the lifting seat and the jacking rod are hung by the hanging structure. A friction plate is connected to the hanging structure, and the height of the jacking rod is automatically adjusted by connecting the friction plate and the friction wheel. The initial height of the jacking rod is changed by adjusting the weight of the counterweight structure. A cleaning structure with a static electricity removal function is also connected to the lifting seat to clean residual cloth fibers on the jacking rod.

[0006] Preferably, the traction seat is arranged at the rear end of the needling machine body, a gap is provided between the upper traction roller and the rear traction roller, and the gap is located at the same horizontal plane as the top surface of the transmission platform, and a motor and a gear set are provided in the driving seat, the upper traction roller is directly driven by the motor, and the roller shafts of the upper traction roller and the lower traction roller are connected with gears that mesh with each other.

[0007] Preferably, the friction wheel is connected to the end of the upper traction roller, and the friction wheel is located on the outside of the traction seat. The traction seat is composed of two opposing vertical plates, and the vertical plates are provided with limiting grooves. The lifting seat is installed in the limiting groove, and the lifting seat is provided with a limiting wheel, and the limiting wheel is pressed on the outer wall of the vertical plate. The lifting rod is connected between the two lifting seats.

[0008] Preferably, the counterweight structure includes a suspension rod fixedly connected to the lifting seat, and the suspension rod is fixedly connected to the counterweight seat, the counterweight seat is provided with a central sleeve rod, and the counterweight weight is installed through the central sleeve rod, the lifting seat is provided with a side plate, and a spring rod is slidably installed on the side plate, and a stabilizing cover is fixedly connected to the spring rod.

[0009] Preferably, the suspension rod is vertically mounted on the bottom of the lifting seat, and the center sleeve rod is vertically arranged, the counterweight is stacked on the center sleeve rod through the sleeve hole in the middle, the stabilizing cover is connected to the bottom end of the spring rod, and the stabilizing cover is pressed on the counterweight.

[0010] Preferably, the hanging structure includes a hanging rope fixedly connected to the traction seat, the movable pulley is installed through the hanging rope, and a lifting rod is provided on the movable pulley, and the lifting rod is fixedly connected to the lifting seat, the hanging rope is fixedly connected to the adjustment block, and the adjustment block is slidably installed on the guide rod, and the bottom of the adjustment block is fixedly connected to a support spring.

[0011] Preferably, one end of the lifting rope is connected to the traction seat, and the other end is connected to the side of the adjusting block, the lifting rod is connected to the central axis of the movable pulley, and the guide rod is connected to the traction seat through the end block, and the support spring is sleeved on the guide rod, and the friction plate is installed on the side of the adjusting block through a hanger and screws.

[0012] Preferably, the cleaning structure includes a connecting block fixedly mounted on the lifting seat, and a base plate is fixedly connected to the connecting block, a cleaning brush is fixedly provided on the base plate, and the middle part of the cleaning brush is fastened by a metal strip, the metal strip is fixedly connected to the conductive rod, and a guide wire is fixedly connected to the conductive rod, and the guide wire is fixedly connected to the grounding block.

[0013] Preferably, the connecting block is connected to the side wall of the lifting seat, and the bottom plate is connected between the two connecting blocks, and the cleaning brush is contact-connected to the bottom of the lifting rod, the conductive rod is installed on the connecting block, and the grounding block is installed at the bottom of the traction seat and connected to the ground.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The traction device of the present invention can autonomously adjust the tension of the fabric according to the traction speed, thereby keeping the fabric in the optimal conveying state at all times and ensuring the needling effect. The traction device has a friction wheel installed at the end of the upper traction roller. The friction wheel can serve as a feedback structure for the traction speed. Its rotation speed represents the rotation speed of the upper and lower traction rollers. At the same time, a lifting rod is installed on the traction seat through a limit seat and a lifting seat. The lifting rod can act on the bottom of the fabric to lift the fabric from a straight line, thereby preventing the overall fabric from slackening and affecting the needling effect. The height of the lifting rod can be automatically adjusted as the rotation speed of the friction wheel changes, thereby adjusting the fabric tension according to the traction speed.

[0016] 2. Considering that the height adjustment of the jacking rod is performed on one side, the present invention has a counterweight structure installed on the lifting seat on one side. The counterweight structure controls the center of gravity on one side, facilitating the balance adjustment of the jacking rod. The weight of the counterweight structure is adjustable. The heavier the weight, the lower the initial height of the jacking rod, the less pressure on the fabric, and the less pressure required for subsequent adjustment of the jacking rod. Flexible adjustment can be made according to the state of the fabric.

[0017] 3. The present invention uses a hanging structure to control the height of the lifting base and the jacking height thereof. The hanging structure can be driven by the friction force generated by the friction wheel. The faster the friction wheel rotates, the greater the inertia generated by the friction plate, and vice versa. Therefore, the hanging structure can be controlled according to the rotation speed, thereby achieving the effect of adjusting the height of the jacking rod;

[0018] 4. The present invention is also provided with a cleaning structure, which can clean the fibers adsorbed on the lifting rod and remove static electricity at the same time to prevent the fibers of the cloth from repeatedly accumulating, affecting the lifting effect of the lifting rod, or causing debris accumulation at the bottom of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the acupuncture machine of the present invention.

[0020] Figure 2 This is a schematic diagram of the position of the traction device of the present invention.

[0021] Figure 3 Schematic diagram of the fifth wheel structure of the present invention.

[0022] Figure 4 Schematic diagram of the traction roller structure of the present invention.

[0023] Figure 5 Schematic diagram of the tension adjustment structure of the present invention.

[0024] Figure 6 Schematic diagram of the driving structure of the present invention.

[0025] Figure 7 Schematic diagram of the speed transmission structure of the present invention.

[0026] Figure 8 Schematic diagram of the counterweight structure of the present invention.

[0027] Figure 9 Schematic diagram of the fiber cleaning structure of the present invention.

[0028] Figure 10 for Figure 9 Enlarged schematic diagram of area A in the middle.

[0029] In the figure: traction seat 1, upper traction roller 2, lower traction roller 3, drive seat 4, needling machine body 5, transmission platform 6, friction wheel 7, limiting groove 8, lifting seat 9, lifting rod 10, limiting wheel 11, hanging rod 12, counterweight seat 13, center sleeve rod 14, counterweight 15, side plate 16, spring rod 17, stabilizing cover 18, hanging rope 19, movable pulley 20, lifting rod 21, adjusting block 22, guide rod 23, support spring 24, friction plate 25, hanger 26, connecting block 27, bottom plate 28, cleaning brush 29, metal strip 30, conductive rod 31, guide wire 32, grounding block 33. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10The present invention provides a technical solution: a tension-compensated traction device for a needle loom, comprising a traction seat 1, on which an upper traction roller 2 and a lower traction roller 3 are rotatably mounted, and the upper traction roller 2 and the lower traction roller 3 are mounted through roller shafts, and the roller shafts on one side of the upper traction roller 2 and the lower traction roller 3 are connected to a driving seat 4, and the upper traction roller 2 and the lower traction roller 3 are driven by the driving seat 4 to rotate in opposite directions, the traction seat 1 is fixedly connected to a needle loom body 5, and a transmission platform 6 is provided on the needle loom body 5 to cooperate with the traction seat 1 to pull the fabric, a friction wheel 7 is fixedly mounted on the roller shaft on the other side of the upper traction roller 2, and the traction seat 1 is lifted and lowered by a lifting rod 10 through two lifting seats 9. The lifting rod 10 is installed, and the lifting rod 10 is located at the front end of the upper traction roller 2 and the lower traction roller 3, and a weight-adjustable counterweight structure is provided on the lifting seat 9 near the friction wheel 7. The center of gravity of the lifting rod 10 is regulated by the counterweight structure. A hanging structure that drives the pulley group is provided on the side of the traction seat 1 near the friction wheel 7. The lifting seat 9 and the lifting rod 10 are hung by the hanging structure. A friction plate 25 is connected to the hanging structure, which is connected to the friction wheel 7 through the friction plate 25 to automatically adjust the height of the lifting rod 10. The initial height of the lifting rod 10 is changed by adjusting the weight of the counterweight structure. A cleaning structure with a static removal function is also connected to the lifting seat 9 to clean the residual cloth fibers on the lifting rod 10.

[0032] The traction device of the present invention can autonomously adjust the tension of the cloth according to the traction speed, so that the cloth is always kept in the best conveying state, ensuring the acupuncture effect.

[0033] The traction seat 1 is arranged at the rear end of the needling machine body 5, a gap is provided between the upper traction roller 2 and the rear traction roller 3, and the gap is located at the same horizontal plane as the top surface of the transmission platform 6, and a motor and a gear set are provided in the driving seat 4. The upper traction roller 2 is directly driven by the motor, and the roller shafts of the upper traction roller 2 and the lower traction roller 3 are connected with gears that mesh with each other.

[0034] The traction device of the present invention is based on a traction seat 1, on which an upper traction roller 2 and a lower traction roller 3 are installed. The needle-punched fabric can be inserted between the upper traction roller 2 and the lower traction roller 3. Then, while the transmission platform 6 pushes the fabric, the upper traction roller 2 and the lower traction roller 3 are driven in reverse by the driving seat 4. The friction generated by the two is used to continuously move the traction fabric, thereby achieving the effect of automatic processing and discharging.

[0035] The friction wheel 7 is connected to the end of the upper traction roller 2, and the friction wheel 7 is located on the outside of the traction seat 1. The traction seat 1 is composed of two opposing vertical plates, and a limiting groove 8 is provided on the vertical plate. The lifting seat 9 is installed in the limiting groove 8, and a limiting wheel 11 is provided on the lifting seat 9, and the limiting wheel 11 is pressed on the outer wall of the vertical plate. The lifting rod 10 is connected between the two lifting seats 9.

[0036] A friction wheel 7 is installed at the end of the upper traction roller 2. The friction wheel 7 can serve as a feedback structure for the traction speed, and its rotation speed represents the rotation speed of the upper traction roller 2 and the lower traction roller 3.

[0037] At the same time, a lifting rod 10 is installed on the traction seat 1 through the limit seat 8 and the lifting seat 9. The lifting rod 10 is located at the front end of the upper traction roller 2 and the lower traction roller 3, at the rear end of the transmission platform 6, and on the moving path of the cloth. The lifting rod 10 can act on the bottom of the cloth to lift the cloth from a line, thereby preventing the overall relaxation of the cloth from affecting the needling effect, and the height of the lifting rod 10 can be automatically adjusted as the speed of the friction wheel 7 changes, thereby adjusting the tension of the cloth according to the traction speed.

[0038] The counterweight structure includes a suspension rod 12 fixedly connected to the lifting seat 9, and a counterweight seat 13 is fixedly connected to the suspension rod 12. A center sleeve rod 14 is provided on the counterweight seat 13, and a counterweight weight 15 is installed through the center sleeve rod 14. The lifting seat 9 is provided with a side plate 16, and a spring rod 17 is slidably installed on the side plate 16, and a stabilizing cover 18 is fixedly connected to the spring rod 17.

[0039] And considering that the lifting seat 9 is arranged at both ends of the lifting rod 10, but the height adjustment of the lifting rod 10 is performed on one side, a counterweight structure is set on the lifting seat 9 on one side. The center of gravity is controlled on one side through the counterweight structure, which facilitates the balance adjustment of the lifting rod 10, and the weight of the counterweight structure is adjustable. The heavier the weight, the lower the initial height of the lifting rod 10, and the smaller the pressure on the fabric. At the same time, the pressure required for the later adjustment of the lifting rod 10 is smaller, and it can be flexibly adjusted according to the state of the fabric.

[0040] The boom 12 is vertically mounted on the bottom of the lifting seat 9, and the center sleeve rod 14 is vertically arranged. The counterweight 15 is stacked on the center sleeve rod 14 through the sleeve hole in the middle. The stabilizing cover 18 is connected to the bottom end of the spring rod 17, and the stabilizing cover 18 is pressed on the counterweight 15.

[0041] The counterweight structure is installed below the lifting seat 9 through a suspension rod 12. Different numbers of counterweights 15 can be placed on the central sleeve rod 14 to change the weight. In addition, a stabilizing cover 18 is movably installed on the lifting seat 10 through a spring rod 17. After the counterweights 15 are adjusted, the stabilizing cover 18 can be used to fix the counterweights 15.

[0042] The hanging structure includes a hanging rope 19 fixedly connected to the traction seat 1, and the movable pulley 20 is installed through the hanging rope 19. A lifting rod 21 is provided on the movable pulley 20, and the lifting rod 21 is fixedly connected to the lifting seat 9. The hanging rope 19 is fixedly connected to the adjustment block 22, and the adjustment block 22 is slidably installed on the guide rod 23, and the bottom of the adjustment block 22 is fixedly connected to a support spring 24.

[0043] The height of the lifting seat 9 and the jack 10 thereon is controlled by the hanging structure. The hanging structure can be driven by the friction force generated by the friction wheel 7. The faster the rotation speed of the friction wheel 7, the greater the inertia generated by the friction plate 25 being pushed, and vice versa. When the inertia is large, the friction plate 25 moves downward to reduce the height, and when the inertia is small, the friction plate 25 moves upward to increase the height. Therefore, the hanging structure can be controlled according to the rotation speed, thereby achieving the effect of adjusting the height of the jacking rod 10.

[0044] One end of the lifting rope 19 is connected to the traction seat 1, and the other end is connected to the side of the adjusting block 22. The lifting rod 21 is connected to the central axis of the movable pulley 20, and the guide rod 23 is connected to the traction seat 1 through the end block, and the support spring 24 is sleeved on the guide rod 23. The friction plate 25 is installed on the side of the adjusting block 22 through the hanger 26 and screws.

[0045] When the traction device is stopped, the elastic force of the support spring 24 can lift the adjusting block 22, and the adjusting block 22 lifts the lifting seat 9 through the movable pulley 20, so that the lifting seat 9 is in a high position, which will lift the fabric, and the height of this position can be adjusted by the counterweight structure. When traction is in progress, the friction wheel 7 rotates and can contact the friction plate 25 to generate downward pressure, thereby driving the adjusting block 22, the movable pulley 20 and the lifting seat 9 to move downward, and driving the lifting rod 10 to descend. The descending height is controlled by the speed of the friction wheel 7. Therefore, when the traction force decreases and the friction wheel 7 slows down, the lifting rod 10 will move up to help the fabric obtain sufficient tension.

[0046] The cleaning structure includes a connecting block 27 fixedly mounted on the lifting seat 9, and a base plate 28 is fixedly connected to the connecting block 27, a cleaning brush 29 is fixedly provided on the base plate 28, and the middle part of the cleaning brush 29 is fastened by a metal strip 30, the metal strip 30 is fixedly connected to the conductive rod 31, and a guide wire 32 is fixedly connected to the conductive rod 31, and the guide wire 32 is fixedly connected to the grounding block 33.

[0047] At the same time, the present invention is also provided with a cleaning structure, which can clean the fibers adsorbed on the lifting rod 10 and remove static electricity at the same time to prevent the fibers of the cloth from repeatedly accumulating, affecting the lifting effect of the lifting rod 10, or causing debris accumulation at the bottom of the cloth.

[0048] The connecting block 27 is connected to the side wall of the lifting seat 9, and the bottom plate 28 is connected between the two connecting blocks 27, and the cleaning brush 29 is connected to the bottom of the lifting rod 10, the conductive rod 31 is installed on the connecting block 27, and the grounding block 33 is installed at the bottom of the traction seat 1 and connected to the ground.

[0049] The cleaning brush 29 is connected to the lifting seat 9 through the base plate 28 and the connecting block 27, and can be raised and lowered along with the lifting rod 10. When the cloth is pulled over the lifting rod 10, the lifting rod 10 is driven to rotate by friction, and the fibers are scraped off by the cleaning brush 29. At the same time, static electricity is introduced into the ground through the metal strip 30, the conductive rod 31 and the guide wire 32 to reduce fiber adsorption.

[0050] When the present invention is in use: first, the traction device of the present invention is based on the traction seat 1, on which the upper traction roller 2 and the lower traction roller 3 are installed, and the needle-punched cloth can be stuffed between the upper traction roller 2 and the lower traction roller 3. Then, while the transmission platform 6 pushes the cloth, the upper traction roller 2 and the lower traction roller 3 are reversely driven by the driving seat 4. The friction generated by the two is used to continuously move the traction cloth to achieve the effect of automatic processing and discharging. A friction wheel 7 is installed at the end of the upper traction roller 2. The friction wheel 7 can be used as a feedback structure for the traction speed, and its rotation speed represents the rotation speed of the upper traction roller 2 and the lower traction roller 3. At the same time, a lifting rod 10 is installed on the traction seat 1 through a limit seat 8 and a lifting seat 9. The lifting rod 1 0 is located at the front end of the upper traction roller 2 and the lower traction roller 3, at the rear end of the transmission platform 6, and on the moving path of the fabric. The lifting rod 10 can act on the bottom of the fabric to lift the fabric from a line, thereby preventing the overall slack of the fabric from affecting the needling effect, and the height of the lifting rod 10 can be automatically adjusted as the rotation speed of the friction wheel 7 changes, thereby adjusting the tension of the fabric according to the traction speed, and considering that the lifting seat 9 is set at both ends of the lifting rod 10, but the height adjustment of the lifting rod 10 is performed on one side, a counterweight structure is set on the lifting seat 9 on the one side, and the center of gravity is controlled on one side through the counterweight structure, which is convenient for balancing the lifting rod 10, and the weight of the counterweight structure is adjustable. The heavier the weight, the higher the initial height of the lifting rod 10. The lower the starting height, the smaller the pressure on the fabric, and the smaller the pressure required to adjust the lifting rod 10. It can be flexibly adjusted according to the state of the fabric. The counterweight structure is installed under the lifting seat 9 through the suspension rod 12. Different numbers of counterweights 15 can be put on the central sleeve rod 14 to change the weight. The lifting seat 10 is also equipped with a stabilizing cover 18 through a spring rod 17. After the counterweight 15 is adjusted, the stabilizing cover 18 can be used to fix the counterweight 15. The height of the lifting seat 9 and the jack 10 thereon can be controlled by the hanging structure. The hanging structure can be driven by the friction force generated by the friction wheel 7. The faster the rotation speed of the friction wheel 7, the greater the inertia generated by the friction plate 25 being pushed, and vice versa. When the inertia is large, the friction The plate 25 moves down, and the friction plate 25 moves up when the inertia is small. Therefore, the hanging structure can be controlled according to the speed, thereby achieving the effect of adjusting the height of the lifting rod 10. When the traction device is stopped, the adjusting block 22 can be lifted up by the elastic force of the supporting spring 24. The adjusting block 22 lifts the lifting seat 9 through the movable pulley 20, so that the lifting seat 9 is in the initial position, and the height of this position can be adjusted by the counterweight structure. When traction is carried out, the friction wheel 7 rotates and can contact the friction plate 25 to generate downward pressure, thereby driving the adjusting block 22, the movable pulley 20 and the lifting seat 9 to move down. The height of the lifting rod 10 is controlled by the speed of the friction wheel 7. When the traction force decreases, the lifting rod 10 moves up to help the fabric obtain sufficient tension.The present invention also includes a cleaning structure that can remove fibers adsorbed on the lifting rod 10 and simultaneously remove static electricity to prevent repeated accumulation of fibers on the fabric, which could affect the lifting effect of the lifting rod 10 or cause debris to accumulate at the bottom of the fabric. A cleaning brush 29 is connected to the lifting seat 9 via a base plate 28 and a connecting block 27 and can be raised and lowered along with the lifting rod 10. When the fabric is pulled over the lifting rod 10, friction drives the lifting rod 10 to rotate, scraping the fibers off with the cleaning brush 29. At the same time, static electricity is directed underground via a metal strip 30, a conductive rod 31, and a guide wire 32, reducing fiber adsorption.

[0051] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above concepts without creative work fall within the scope of protection of the present invention.

Claims

1. A tension-compensating traction device for a needle loom, comprising a traction seat (1), characterized in that: An upper traction roller (2) and a lower traction roller (3) are rotatably mounted on the traction seat (1), and the upper traction roller (2) and the lower traction roller (3) are mounted via a roller shaft, and the roller shafts on one side of the upper traction roller (2) and the lower traction roller (3) are connected to the driving seat (4), and the upper traction roller (2) and the lower traction roller (3) are driven by the driving seat (4) to rotate in opposite directions, the traction seat (1) is fixedly connected to the needle loom main body (5), and a transmission platform (6) is provided on the needle loom main body (5) to cooperate with the traction seat (1) to pull the fabric, a friction wheel (7) is fixedly mounted on the roller shaft on the other side of the upper traction roller (2), and a lifting rod (10) is lifted and lowered on the traction seat (1) via two lifting seats (9), and the lifting rod (10) is located at A weight-adjustable counterweight structure is provided at the front end of the upper traction roller (2) and the lower traction roller (3), and on the lifting seat (9) near the friction wheel (7). The center of gravity of the jacking rod (10) is regulated by the counterweight structure. A hanging structure for driving the pulley group is provided on the side of the traction seat (1) near the friction wheel (7). The lifting seat (9) and the jacking rod (10) are hung by the hanging structure. A friction plate (25) is connected to the hanging structure. The height of the jacking rod (10) is automatically adjusted by connecting the friction plate (25) to the friction wheel (7). The initial height of the jacking rod (10) is changed by adjusting the weight of the counterweight structure. A cleaning structure with a static electricity removal function is also connected to the lifting seat (9) to clean the residual fabric fibers on the jacking rod (10). The counterweight structure includes a suspension rod (12) fixedly connected to a lifting seat (9), and a counterweight seat (13) fixedly connected to the suspension rod (12), a center sleeve rod (14) provided on the counterweight seat (13), and a counterweight (15) is installed through the center sleeve rod (14), and a side plate (16) is provided on the lifting seat (9), and a spring rod (17) is slidably installed on the side plate (16), and a stabilizing cover (18) is fixedly connected to the spring rod (17); The hanging structure includes a hanging rope (19) fixedly connected to the traction seat (1), the movable pulley (20) is installed through the hanging rope (19), and the movable pulley (20) is provided with a lifting rod (21), and the lifting rod (21) is fixedly connected to the lifting seat (9), the hanging rope (19) is fixedly connected to the adjustment block (22), and the adjustment block (22) is slidably installed on the guide rod (23), and the bottom of the adjustment block (22) is fixedly connected to a support spring (24); The cleaning structure includes a connecting block (27) fixedly mounted on a lifting seat (9), and a base plate (28) fixedly connected to the connecting block (27), a cleaning brush (29) fixedly provided on the base plate (28), and a middle portion of the cleaning brush (29) is fastened by a metal strip (30), the metal strip (30) is fixedly connected to a conductive rod (31), and a guide wire (32) is fixedly connected to the conductive rod (31), and the guide wire (32) is fixedly connected to a grounding block (33).

2. The tension-compensating traction device for a needle loom according to claim 1, characterized in that: The traction seat (1) is arranged at the rear end of the needling machine body (5), a gap is provided between the upper traction roller (2) and the rear traction roller (3), and the gap is located at the same horizontal plane as the top surface of the transmission platform (6), and a motor and a gear set are provided in the driving seat (4), the upper traction roller (2) is directly driven by the motor, and mutually meshing gears are connected to the roller shafts of the upper traction roller (2) and the lower traction roller (3).

3. The tension-compensating traction device for a needle loom according to claim 1, characterized in that: The friction wheel (7) is connected to the end of the upper traction roller (2), and the friction wheel (7) is located outside the traction seat (1). The traction seat (1) is composed of two opposing vertical plates, and a limiting groove (8) is provided on the vertical plate. The lifting seat (9) is installed in the limiting groove (8), and a limiting wheel (11) is provided on the lifting seat (9), and the limiting wheel (11) is pressed on the outer wall of the vertical plate. The lifting rod (10) is connected between the two lifting seats (9).

4. The tension-compensating traction device for a needle loom according to claim 1, characterized in that: The suspension rod (12) is vertically mounted on the bottom of the lifting seat (9), and the center sleeve rod (14) is vertically arranged. The counterweight (15) is stacked on the center sleeve rod (14) through the sleeve hole in the middle. The stabilizing cover (18) is connected to the bottom end of the spring rod (17), and the stabilizing cover (18) is pressed on the counterweight (15).

5. The tension-compensating traction device for a needle loom according to claim 1, characterized in that: One end of the lifting rope (19) is connected to the traction seat (1), and the other end is connected to the side of the adjustment block (22). The lifting rod (21) is connected to the central axis of the movable pulley (20), and the guide rod (23) is connected to the traction seat (1) through the end block, and the support spring (24) is sleeved on the guide rod (23). The friction plate (25) is installed on the side of the adjustment block (22) through a hanger (26) and a screw.

6. The tension-compensating traction device for a needle loom according to claim 1, characterized in that: The connecting block (27) is connected to the side wall of the lifting seat (9), and the bottom plate (28) is connected between the two connecting blocks (27), and the cleaning brush (29) is connected to the bottom of the lifting rod (10). The conductive rod (31) is installed on the connecting block (27), and the grounding block (33) is installed at the bottom of the traction seat (1) and connected to the ground.

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