A through type conductive fabric belt anti-static filter bag and sewing device

Abstract

The utility model discloses a kind of through type conductive woven tape anti-static filter bag and sewing device, specifically related to anti-static filter bag field, including fixed end ring, the fixed end ring one end is connected with filter bag body, the filter bag body one end is fixedly connected with fixed end ring, the filter bag body upper end and lower end are all connected with anti-static woven tape, still disclose a kind of through type conductive woven tape anti-static filter bag's sewing device, including processing table, the processing table upper end one side is connected with support seat, the support seat upper end is connected with sewing equipment, the sewing equipment lower end one side is evenly connected with sewing needle, the utility model is symmetrical to set through type anti-static woven, realize filter bag all-around static electricity export;With the collaborative design of bag supporting mechanism and fixed mechanism, the sewing quality and sewing efficiency of anti-static woven tape and filter bag body can be improved.

Description

Technical Field

[0001] This utility model relates to the field of antistatic filter bag technology, and more specifically, to a through-type conductive webbing antistatic filter bag and a sewing device. Background Technology

[0002] In industrial dust removal and gas purification, filter bags, as core filtration components, are mainly used to intercept dust particles, impurities, and other substances in the airflow, achieving gas-solid separation and ensuring the normal operation of downstream equipment and compliance of exhaust gases. However, during long-term filtration, the continuous friction between dust particles and the filter bag surface can easily generate static electricity. Especially when handling flammable and explosive dust, the accumulation of static electricity may not only cause dust adsorption and agglomeration on the filter bag surface, reducing filtration efficiency, but also pose a safety risk of electrostatic discharge igniting dust and causing an explosion. Therefore, configuring an effective anti-static structure for filter bags has become a key requirement to ensure the safe and stable operation of the filtration system.

[0003] Currently, static electricity discharge is usually achieved by sewing antistatic webbing onto the surface of the filter bag. However, since the filter bag body is mostly a flexible tubular structure, when sewing the antistatic webbing, workers need to manually straighten the filter bag and keep it in a fixed position before operating the sewing equipment. This purely manual straightening method makes it difficult to ensure that the filter bag is in a flat and stable state throughout the process. Uneven hand force or operational deviations by workers can easily cause the antistatic webbing to become crooked or wrinkled at the sewing point. Once the webbing is crooked, the stitches need to be removed, straightened, aligned, and sewn again. This not only increases the amount of rework but also wastes materials from both the filter bag body and the antistatic webbing, significantly reducing the overall sewing efficiency and making it difficult to meet the needs of mass production. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a through-type conductive webbing antistatic filter bag and sewing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A through-type conductive webbing antistatic filter bag includes a fixed end ring, one end of which is connected to a filter bag body, and one end of the filter bag body is fixedly connected to the fixed end ring. Antistatic webbing is connected to both the upper and lower ends of the filter bag body.

[0006] Preferably, the number of antistatic webbing is two sets, the length of the antistatic webbing is adapted to the length of the filter bag body, the two antistatic webbing are symmetrically arranged, and the lower end of the antistatic webbing is connected to the outer wall of the fixed end ring.

[0007] A sewing device for a through-type conductive webbing antistatic filter bag includes a processing table. A support base is connected to one side of the upper end of the processing table. A sewing device is connected to the upper end of the support base. Sewing needles are evenly connected to one side of the lower end of the sewing device. A sleeve rod is connected to the upper part of one side of the support base. A bag-supporting mechanism is connected to one end of the sleeve rod. The bag-supporting mechanism is used to open the filter bag body. A fixing mechanism is slidably connected to the outer wall of the sleeve rod. The fixing mechanism is used to press two antistatic webbings to the outer wall of the fixing end ring.

[0008] Preferably, the bag-supporting mechanism includes a connecting cylinder, a drive motor connected to the middle of one side of the inner wall of the connecting cylinder, a threaded rod connected to the output end of the drive motor, a connecting block connected to the middle of the lower end of the inner wall of the connecting cylinder, the upper end of the connecting block connected to the upper end of the inner wall of the connecting cylinder, an opening opened on the connecting block corresponding to the threaded rod, the threaded rod located inside the opening, sliders threadedly connected to both sides of the outer wall of the threaded rod, a support frame connected to one side of the connecting cylinder, the support frame having an inverted U-shaped structure, guide rollers connected to one side of the lower end of the connecting cylinder, the lower end of the guide rollers contacting the lower end of the inner wall of the filter bag body, support plates connected to both ends of the guide rollers, and the two support plates connected to both sides of the lower end of the connecting cylinder.

[0009] Preferably, the two sliders are rotatably connected to support rods on both sides, and there are four sets of support rods. The connecting block is rotatably connected to stabilizing rods on both sides, and there are four sets of stabilizing rods. One end of each of the stabilizing rods is rotatably connected to the middle of one side of each of the support rods. The support rods extend through to both sides of the connecting cylinder. Slide grooves are provided on both sides of the connecting cylinder corresponding to the support rods. Two of the support rods and two other support rods are located inside the two slide grooves.

[0010] Preferably, two of the support rods are rotatably connected to support rollers at their upper and lower ends, and one end of the other two support rods is connected to a C-shaped block. A dual-axis motor is connected to the lower end of the inner wall of the C-shaped block. The upper and lower ends of the dual-axis motor extend through to the upper and lower ends of the C-shaped block, respectively. Both the upper and lower ends of the dual-axis motor are connected to drive rollers. One side of the multiple drive rollers and one side of the multiple support rollers respectively contact the two sides of the inner wall of the filter bag body.

[0011] Preferably, the fixing mechanism includes a fixing ring, the inner wall of which is embedded with balls, one end of each ball contacting the outer wall of the sleeve rod, and L-shaped blocks connected to the upper and lower ends of the outer wall of the fixing ring. A buffer spring is connected to the lower end of one L-shaped block and the upper end of another L-shaped block. There are six buffer springs, three of which have clamps connected to the lower ends and the upper ends of the other three. Two clamps slide on one side of each of the two L-shaped blocks, and the two clamps are arc-shaped. One side of each clamp contacts one side of each of the two antistatic webbing strips. A pull rod is connected to the upper end of one clamp and the lower end of the other clamp, and one end of each pull rod extends through to one side of each of the two L-shaped blocks.

[0012] The technical effects and advantages of this utility model are as follows: The drive motor in the bag-supporting mechanism rotates the threaded rod, which can precisely control the expansion range of the slider and the support rod, so that the filter bag body is stably expanded into a preset elliptical shape. This not only facilitates the contact of the sewing needle with the sewing area, but also avoids the filter bag from deforming due to excessive expansion force. At the same time, the support roller 13 and the drive roller 16 are respectively attached to the two sides of the inner wall of the filter bag. Together with the guide roller 27 at the lower end of the connecting cylinder, they form a three-dimensional support structure with support on both sides and guidance at the bottom. This ensures that the filter bag always moves along the axis of the sleeve rod during the sewing process without deviation or torsion, providing a stable working basis for continuous sewing and greatly reducing the sewing rework rate caused by abnormal filter bag shape. The arc-shaped clamp fits well with the tubular outer wall of the filter bag, which can tightly press the antistatic webbing into the preset sewing position of the filter bag. This effectively prevents the webbing from curling or shifting during the sewing process, ensuring that the sewing needle path is accurately aligned with the webbing, improving the neatness and strength of the sewing stitches. The ball bearings allow the fixing mechanism to slide synchronously along the sleeve rod as the filter bag moves, avoiding the problem of traditional fixing structures hindering the feeding of the filter bag. The pull rod design allows the staff to manually control the opening and closing of the clamp, facilitating the quick placement of the webbing and removal of the fixing mechanism, simplifying the operation process, reducing auxiliary operation time, and improving the overall sewing efficiency. Two sets of antistatic webbing are attached to the top and bottom of the filter bag body, respectively, and their length is perfectly matched to the filter bag body. This can cover the entire filtration process of the filter bag, avoiding the blind spot of static electricity discharge that exists in traditional single-sided webbing. It effectively prevents static electricity generated by dust friction from accumulating locally in the filter bag, eliminating safety hazards such as sparks and dust explosions caused by static electricity. It is especially suitable for filtration conditions with high dust and flammable and explosive materials, and significantly improves the safety and stability of the filter bag during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the novel device; Figure 2 A schematic diagram of the connection structure between the fixing mechanism and the sleeve rod; Figure 3This is a schematic diagram of the installation structure of the drive roller; Figure 4 This is a schematic diagram of the installation structure of the connecting block and the connecting cylinder; Figure 5 A three-dimensional structural diagram of the bag-supporting mechanism; Figure 6 This is a three-dimensional structural diagram of the fixing mechanism; Figure 7 This is a schematic diagram of the three-dimensional structure of the filter bag body.

[0014] The attached diagram is labeled as follows: 1. Processing table; 2. Support base; 3. Sewing equipment; 4. Sewing needle; 5. Sleeve rod; 6. Connecting cylinder; 7. Drive motor; 8. Threaded rod; 9. Connecting block; 10. Slider; 11. Support rod; 12. Stabilizing rod; 13. Support roller; 14. C-block; 15. Dual-axis motor; 16. Drive roller; 17. Support frame; 18. Fixing ring; 19. Ball bearing; 20. L-block; 21. Buffer spring; 22. Clamping plate; 23. Pull rod; 24. Fixing end ring; 25. Filter bag body; 26. Antistatic webbing; 27. Guide roller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Refer to the instruction manual appendix Figure 7 As shown in the figure, a through-type conductive webbing antistatic filter bag of this utility model includes a fixed end ring 24. One end of the fixed end ring 24 is connected to a filter bag body 25. One end of the filter bag body 25 is fixedly connected to the fixed end ring 24. Antistatic webbing 26 is connected to both the upper and lower ends of the filter bag body 25. There are two sets of antistatic webbing 26. The length of the antistatic webbing 26 is adapted to the length of the filter bag body 25. The two antistatic webbing 26 are symmetrically arranged. One side of the lower end of the antistatic webbing 26 is connected to the outer wall of the fixed end ring 24. The fixed end ring 24 provides an installation benchmark and structural support for the entire filter bag, ensuring that the filter bag body 25 can be stably fixed to the equipment interface during subsequent filtration operations. The anti-static webbing 26 is used to discharge the static electricity generated by dust friction during the filtration process of the filter bag body 25, avoiding the accumulation of static electricity that may cause safety hazards. The two sets of anti-static webbing 26 are set to achieve all-round static electricity discharge from the upper and lower ends of the filter bag body 25, improving the uniformity and reliability of the anti-static effect.

[0017] Refer to the instruction manual appendix Figures 1-6As shown, a sewing device for a through-type conductive webbing antistatic filter bag is also disclosed, including a processing table 1, a support base 2 connected to one side of the upper end of the processing table 1, a sewing device 3 connected to the upper end of the support base 2, sewing needles 4 evenly connected to one side of the lower end of the sewing device 3, a sleeve rod 5 connected to the upper part of one side of the support base 2, a bag-supporting mechanism connected to one end of the sleeve rod 5, the bag-supporting mechanism is used to open the filter bag body 25, and a fixing mechanism is slidably connected to the outer wall of the sleeve rod 5, the fixing mechanism is used to press the two antistatic webbing 26 to the outer wall of the fixing end ring 24; The sewing device 3 provides sewing power and sewing function, driving the sewing needle 4 to complete the sewing operation between the antistatic webbing 26 and the filter bag body 25. The sleeve rod 5 is fitted onto the filter bag body 25 to provide axial support for the filter bag and prevent the filter bag from sagging or shifting during the sewing process. The bag supporting mechanism expands the filter bag body 25 from the contracted state to the preset elliptical shape, making it convenient for the sewing needle 4 to contact the sewing area and avoiding wrinkles in the filter bag from affecting the sewing quality. The fixing mechanism tightly fits the antistatic webbing 26 to the preset sewing position of the filter bag body 25 to prevent the webbing from shifting or curling up and to ensure the sewing alignment.

[0018] The bag-supporting mechanism includes a connecting cylinder 6. A drive motor 7 is connected to the middle of one side of the inner wall of the connecting cylinder 6. A threaded rod 8 is connected to the output end of the drive motor 7. A connecting block 9 is connected to the middle of the lower end of the inner wall of the connecting cylinder 6. The upper end of the connecting block 9 is connected to the upper end of the inner wall of the connecting cylinder 6. An opening is provided on the connecting block 9 corresponding to the threaded rod 8, and the threaded rod 8 is located inside the opening. Slider blocks 10 are threadedly connected to both sides of the outer wall of the threaded rod 8. A support frame 17 is connected to one side of the connecting cylinder 6. The support frame 17 has an inverted U-shaped structure. Guide rollers 27 are connected to one side of the lower end of the connecting cylinder 6. The lower end of the guide rollers 27 contacts the lower end of the inner wall of the filter bag body 25. Support plates are connected to both ends of the guide rollers 27. The two support plates are connected to both sides of the lower end of the connecting cylinder 6. Support rods 11 are evenly rotated on both sides of the two sliders 10. There are four sets of support rods 11. The connecting block 9 rotates evenly on both sides. The filter bag is connected with four sets of stabilizing rods 12. One end of each stabilizing rod 12 is rotatably connected to the middle of one side of each support rod 11. Each support rod 11 extends through to both sides of the connecting cylinder 6. Slide grooves are provided on both sides of the connecting cylinder 6 corresponding to the support rods 11. Two support rods 11 and two other support rods 11 are located inside the two slide grooves. The upper and lower ends of two support rods 11 are rotatably connected to support rollers 13. One end of the other two support rods 11 is connected to a C-shaped block 14. The lower end of the inner wall of the C-shaped block 14 is connected to a dual-axis motor 15. The upper and lower ends of the dual-axis motor 15 extend through to the upper and lower ends of the C-shaped block 14, respectively. The upper and lower ends of the dual-axis motor 15 are connected to drive rollers 16. One side of each drive roller 16 and one side of each support roller 13 are in contact with both sides of the inner wall of the filter bag body 25. The drive motor 7 drives the threaded rod 8 to rotate through its output end, triggering the expansion or contraction of the subsequent bag-supporting structure. The reverse design of the threads on both sides of the threaded rod 8 enables the synchronous reverse movement of the two sliders 10. When the filter bag is expanded into an elliptical state, the guide roller 27 supports the lower end of the inner wall of the filter bag, preventing the filter bag from directly contacting the bottom of the connecting cylinder 6 and causing friction. At the same time, it provides guidance for the movement of the filter bag body 25. The support rod 11 is used to transmit the power of the slider 10, pushing the support roller 13 and the C-shaped block 14 to expand outward, thereby realizing the opening action of the filter bag body 25. The stabilizing rod 12 restricts the movement trajectory of the support rod 11, preventing the support rod 11 from swaying laterally during expansion or contraction, ensuring smooth bag-supporting action. The support roller 13 is used to contact the two sides of the inner wall of the filter bag when the filter bag is opened, reducing the resistance when the filter bag moves through rolling friction. The drive roller 16 drives the filter bag body 25 to move slowly along the axial direction of the sleeve rod 5 through the friction with the inner wall of the filter bag, which, together with the support roller 13, realizes the smooth feeding of the filter bag and provides conditions for continuous sewing.

[0019] The fixing mechanism includes a fixing ring 18, with balls 19 embedded in the inner wall of the fixing ring 18. One end of each ball 19 contacts the outer wall of the sleeve rod 5. The upper and lower ends of the outer wall of the fixing ring 18 are connected to L-shaped blocks 20. The lower end of one L-shaped block 20 and the upper end of another L-shaped block 20 are connected to buffer springs 21. There are six buffer springs 21. The lower ends of three buffer springs 21 and the upper ends of the other three buffer springs 21 are connected to clamping plates 22. One side of each clamping plate 22 slides on one side of each of the two L-shaped blocks 20. The two clamping plates 22 are arc-shaped. One side of each clamping plate 22 contacts one side of each of the two antistatic webbing 26. The upper end of one clamping plate 22 and the lower end of another clamping plate 22 are connected to pull rods 23. One end of each pull rod 23 extends through to one side of each of the two L-shaped blocks 20. The ball bearing 19 converts the sliding friction between the fixing ring 18 and the sleeve rod 5 into rolling friction, reducing the resistance when the fixing mechanism moves along the sleeve rod 5 and ensuring that it can move synchronously with the filter bag. The buffer spring 21 is used to provide elastic pressure to the clamping plate 22, so that the clamping plate 22 can fit tightly against the antistatic webbing 26. The clamping plate 22 is used to directly contact and press the antistatic webbing 26, fixing the webbing to the preset sewing position of the filter bag body 25, preventing the webbing from shifting during the sewing process. The pull rod 23 can be manually pulled by the staff to drive the clamping plate 22 to compress the buffer spring 21 and open, making it convenient to place the antistatic webbing 26 before sewing or remove the fixing mechanism after sewing.

[0020] Working principle: When in use, first put the fixed end ring 24 of the filter bag body 25 onto the end of the sleeve rod 5 near the support seat 2, and the filter bag body 25 hangs down naturally and is put on the outside of the sleeve rod 5. At this time, the filter bag is in a contracted state without being stretched.

[0021] Then, pull the lever 23 of the fixing mechanism, causing the arc-shaped clamp 22 to compress the buffer spring 21 and open outwards. Align the two sets of antistatic webbing 26 with the preset sewing positions at the upper and lower ends of the filter bag body 25. Release the lever 23, and the buffer spring 21 will reset and push the clamp 22 to initially press the antistatic webbing 26 against the outer wall of the filter bag. The fixing ring 18 slides along the sleeve rod 5 through the inner wall ball bearing 19 to the position near the fixing end ring 24, completing the initial positioning. At this time, the operator begins to support the operation with both hands close to the sewing area to assist in guiding and preventing the filter bag from twisting: one hand gently supports the outer wall of the filter bag body 25 along the axis of the sleeve rod 5 to provide a stable guiding reference for the subsequent movement of the filter bag; the other hand gently pinches the edge of the antistatic webbing 26 to ensure that the webbing and the filter bag are fixed at the same angle, so as to avoid twisting due to the initial positioning deviation or subsequent actions.

[0022] The drive motor 7 of the bag-supporting mechanism is started, and the threaded rod 8 rotates, causing the sliders 10 on both sides to move in the opposite direction. The support rod 11 pushes the support roller 13 and the C-shaped block 14 to expand outward, so that the cross-section of the filter bag body 25 is gradually expanded from a circle to an ellipse. At this time, the two sides of the inner wall of the filter bag are opened by the support roller 13 and the drive roller 16, and the inner wall contacts the guide roller 27 at the lower end of the connecting cylinder 6. The guide roller 27 supports the lower end of the inner wall of the filter bag to avoid the filter bag from directly contacting the bottom of the connecting cylinder 6 and causing friction.

[0023] The dual-axis motor 15 is started to drive the drive roller 16 to rotate. The filter bag body 25 moves axially along the sleeve rod 5 under the action of friction. The lower end of the inner wall of the filter bag, which is in an elliptical state, maintains rolling contact with the guide roller 27. The guide roller 27 guides it to ensure that the sewing needle 4 is always aligned with the sewing trajectory of the antistatic webbing 26.

[0024] During the sewing process, the fixing mechanism slides synchronously with the filter bag to keep the webbing tight. After one side is sewn, the bag-supporting mechanism contracts to restore the filter bag to an approximately circular shape. The guide roller 27 separates from the inner wall of the filter bag. The filter bag is rotated and adjusted to the other side to be sewn. The bag-supporting mechanism is restarted to make the filter bag elliptical. The guide roller 27 contacts the lower end of the inner wall of the filter bag again. The sewing process is repeated until the through-sewing of the two sets of symmetrical antistatic webbing 26 is completed. After both sets of antistatic webbing 26 are sewn, the dual-axis motor 15 and the sewing equipment 3 are turned off. The drive motor 7 is started in reverse to make the bag-supporting mechanism contract. The staff stops supporting the bag and removes the fixing end ring 24 from the sleeve rod 5 to complete the sewing operation of the entire filter bag.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A through-type conductive webbing antistatic filter bag, comprising a fixed end ring (24), characterized in that: One end of the fixed end ring (24) is connected to the filter bag body (25), and one end of the filter bag body (25) is fixedly connected to the fixed end ring (24). The upper and lower ends of the filter bag body (25) are both connected to antistatic webbing (26).

2. The through-type conductive webbing antistatic filter bag according to claim 1, characterized in that: The number of antistatic webbing (26) is two sets. The length of the antistatic webbing (26) is adapted to the length of the filter bag body (25). The two antistatic webbing (26) are symmetrically arranged. The lower end of the antistatic webbing (26) is connected to the outer wall of the fixed end ring (24).

3. A sewing device for a through-type conductive webbing antistatic filter bag, applied to the through-type conductive webbing antistatic filter bag according to any one of claims 1-2: characterized in that: The equipment includes a processing table (1), a support base (2) connected to one side of the upper end of the processing table (1), a sewing device (3) connected to the upper end of the support base (2), a sewing needle (4) evenly connected to one side of the lower end of the sewing device (3), a sleeve rod (5) connected to the upper part of one side of the support base (2), a bag-supporting mechanism connected to one end of the sleeve rod (5), the bag-supporting mechanism being used to open the filter bag body (25), a fixing mechanism being slidably connected to the outer wall of the sleeve rod (5), the fixing mechanism being used to press two antistatic webbing (26) to the outer wall of the fixing end ring (24).

4. The sewing device for a through-type conductive webbing antistatic filter bag according to claim 3, characterized in that: The bag-supporting mechanism includes a connecting cylinder (6), a drive motor (7) is connected to the middle of one side of the inner wall of the connecting cylinder (6), a threaded rod (8) is connected to the output end of the drive motor (7), a connecting block (9) is connected to the middle of the lower end of the inner wall of the connecting cylinder (6), the upper end of the connecting block (9) is connected to the upper end of the inner wall of the connecting cylinder (6), the connecting block (9) has an opening corresponding to the threaded rod (8), the threaded rod (8) is located inside the opening, and sliders (10) are threadedly connected to both sides of the outer wall of the threaded rod (8), a support frame (17) is connected to one side of the connecting cylinder (6), the support frame (17) is in the shape of an inverted U-shape, a guide roller (27) is connected to one side of the lower end of the connecting cylinder (6), the lower end of the guide roller (27) is in contact with the lower end of the inner wall of the filter bag body (25), and support plates are connected to both ends of the guide roller (27), and the two support plates are connected to both sides of the lower end of the connecting cylinder (6).

5. The sewing device for a through-type conductive webbing antistatic filter bag according to claim 4, characterized in that: Two sliders (10) are evenly rotatably connected to support rods (11) on both sides. There are four sets of support rods (11). Two connecting blocks (9) are evenly rotatably connected to stabilizing rods (12) on both sides. There are four sets of stabilizing rods (12). One end of each of the stabilizing rods (12) is rotatably connected to the middle of one side of each of the multiple support rods (11). The multiple support rods (11) extend through to both sides of the connecting cylinder (6). Slide grooves are provided on both sides of the connecting cylinder (6) corresponding to the multiple support rods (11). Two of the support rods (11) and the other two support rods (11) are located inside the two slide grooves respectively.

6. The sewing device for a through-type conductive webbing antistatic filter bag according to claim 5, characterized in that: Two of the support rods (11) are rotatably connected to support rollers (13) at their upper and lower ends. The other two support rods (11) are connected to C-shaped blocks (14) at one end. A dual-axis motor (15) is connected to the lower end of the inner wall of the C-shaped block (14). The upper and lower ends of the dual-axis motor (15) extend through to the upper and lower ends of the C-shaped block (14), respectively. Both the upper and lower ends of the dual-axis motor (15) are connected to drive rollers (16). One side of the multiple drive rollers (16) and one side of the multiple support rollers (13) are in contact with both sides of the inner wall of the filter bag body (25), respectively.

7. The sewing device for a through-type conductive webbing antistatic filter bag according to claim 3, characterized in that: The fixing mechanism includes a fixing ring (18), and each fixing ring (18) has a ball bearing (19) embedded in its inner wall. One end of each ball bearing (19) contacts the outer wall of the sleeve rod (5). The upper and lower ends of the outer wall of the fixing ring (18) are connected to L-shaped blocks (20). The lower end of one L-shaped block (20) and the upper end of another L-shaped block (20) are connected to a buffer spring (21). There are six buffer springs (21), and the lower ends of three of the buffer springs (21) are connected to the other three buffer springs. The upper end of the spring (21) is connected to a clamp (22). One side of the two clamps (22) slides on one side of the two L-shaped blocks (20). The two clamps (22) are arc-shaped. One side of the two clamps (22) contacts one side of the two antistatic webbing (26). The upper end of one clamp (22) and the lower end of the other clamp (22) are connected to a pull rod (23). One end of the two pull rods (23) extends through to one side of the two L-shaped blocks (20).

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