A nonwoven needle linkage device

Abstract

The present invention relates to the technical field of textile processing equipment, and in particular to a nonwoven needle linkage device, comprising a limit box, wherein the inner cavity of the limit box is provided with two isolation plates, and the inner cavity of the limit box is divided into a main flow cavity and two auxiliary flow cavities by the isolation plates, and the two auxiliary flow cavities are correspondingly arranged on both sides of the main flow cavity, and transmission fluid is arranged inside the main flow cavity and the auxiliary flow cavity, and the inner cavity of the main flow cavity is provided with a transmission plate, and the bottom of the transmission plate is provided with a first needle. In the present invention, an electromagnet is provided, and a magnetic field is generated by the electromagnet to control the movement of the second needle, so as to realize the lateral adjustment of the second needle, so that the device can flexibly adjust the needle spacing according to the fiber characteristics to be processed, and the needles with adjustable spacing can be adjusted to the most suitable spacing according to the characteristics and strength of the fiber, thereby reducing damage to the fiber and protecting the integrity and quality of the nonwoven fabric.

Description

Technical Field

[0001] The invention relates to the technical field of textile processing equipment, in particular to a nonwoven fabric needle linkage device. Background Art

[0002] There are many processing methods for nonwoven fabrics, among which the most commonly used method is needle punching. The needle punching method is to repeatedly and quickly puncture the fiber web made of short fibers with a needle with edges or barbs, so that the short fibers on the surface of the fiber web are penetrated into the inside and the fiber bundles of each layer are entangled. The fiber web will change from a fluffy state to a dense state, forming a needle-punched nonwoven material.

[0003] Publication No. CN111926464B records a needle linkage device for nonwoven fabrics. During the needling process, the needles of the device are not easy to stretch the fibers when passing through the nonwoven fabric, and the kinetic energy loss is small. It can not only effectively reduce the noise generated during the needling process, but also increase the number of needling times per unit time, making the structure of the processed nonwoven fabric denser.

[0004] The needle punching device uses a fixed-pitch arrangement of needles. When processing certain special fibers (such as fragile fibers or high-value fibers), the fixed-pitch needles may cause fiber breakage or damage due to improper spacing, and cannot be flexibly adjusted according to the thickness and fiber characteristics of the nonwoven fabric. This makes it difficult to achieve the best puncture effect when processing different types of nonwoven fabrics. The fibers may not be fully interwoven due to the large spacing between the needles, or the nonwoven fabric may be damaged or the fibers may be broken due to improper needle depth. Summary of the invention

[0005] The object of the present invention is to provide a nonwoven needle linkage device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A nonwoven needle linkage device, comprising:

[0008] A limit box, wherein the inner cavity of the limit box is provided with two isolation plates, and the inner cavity of the limit box is divided into a main flow cavity and two auxiliary flow cavities by the isolation plates, and the two auxiliary flow cavities are correspondingly provided on both sides of the main flow cavity, and transmission fluid is provided inside the main flow cavity and the auxiliary flow cavity, and the inner cavity of the main flow cavity is provided with a transmission plate, and the bottom of the transmission plate is provided with a first needle, and the inner cavity of the auxiliary flow cavity is provided with a sliding plate, and the bottom of the sliding plate is provided with a second needle, and the top of the limit box is provided with a sealing cover;

[0009] A solenoid is arranged on the top of the sealing cover, a power source is arranged on the top of the solenoid, and the transmission plate is made of a permanent magnet;

[0010] The surface of the isolation plate is provided with a flow opening, and the transmission fluid flows through the flow opening in the inner cavity of the main flow cavity and the auxiliary flow cavity, and the inner wall of the flow opening is provided with a first baffle and a second baffle, and the interior of the isolation plate is provided with a control mechanism located above the first baffle, and the movement of the first baffle and the second baffle can be controlled by the control mechanism;

[0011] The inner cavity of the sliding plate is provided with a movable plate, the bottom of the movable plate is fixedly connected to the top of the second needle, magnetic circles are provided on both sides of the movable plate, and electromagnets are provided on both sides of the limit box.

[0012] Preferably, a limiting seat is provided below the limiting box, a puncture hole is provided on the surface of the limiting seat, the first needle and the second needle puncture the non-woven fabric through the puncture hole, a compression fan is provided inside the limiting seat, the compression fan is connected to a nozzle through a conduit, and the air outlet of the nozzle protrudes from the inner wall of the puncture hole.

[0013] Preferably, the control mechanism includes a servo motor, the output end of the servo motor is fixedly connected to a driving shaft, a gear is provided at the bottom end of the driving shaft, a transmission rod is provided on both sides of the gear, and the corresponding surfaces of the transmission rod and the gear are provided with gear grooves that are mutually adapted to the gear, and a connecting seat is provided at one end of the transmission rod, and the bottoms of the two connecting seats are respectively connected to the tops of the first baffle and the second baffle.

[0014] Preferably, springs are provided at both ends of the inner cavity of the sliding plate, and a movable groove is provided at the bottom of the inner cavity of the sliding plate, and the second needle can move along the movable groove.

[0015] Preferably, the inner wall of the puncture hole is further provided with a number of dust discharge holes, and dust storage bins are provided on both sides of the limiting seat, and the dust discharge holes are communicated with the inner cavity of the dust storage bin.

[0016] Preferably, a shielding cover is provided on the outer side of the solenoid, a shielding layer is provided on the inner side of the isolation plate, and the sliding plate is made of non-magnetic material.

[0017] Preferably, a laser displacement sensor is provided at the bottom of the limiting seat, and the laser displacement sensor is used to measure the thickness of the nonwoven fabric in real time.

[0018] Preferably, a sliding groove is opened inside the isolation plate, and the sliding groove runs through the side of the isolation plate, the first baffle plate and the second baffle plate slide through the sliding groove, and the connecting seat is connected to the first baffle plate and the second baffle plate by bolts.

[0019] Preferably, corresponding surfaces of the first baffle plate and the second baffle plate are provided with corresponding sealing rings and sealing plugs.

[0020] Preferably, slide bars are provided on both sides of the movable plate, guide rails adapted to the slide bars are provided on the inner wall of the sliding plate, and fixed plates fixed by bolts are provided on both sides of the sliding plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, an electromagnet is provided to generate a magnetic field to control the movement of the second needle, thereby realizing lateral adjustment of the second needle, so that the device can flexibly adjust the needle spacing according to the characteristics of the fiber to be processed. The needles with adjustable spacing can be adjusted to the most suitable spacing according to the characteristics and strength of the fiber, thereby reducing damage to the fiber and protecting the integrity and quality of the nonwoven fabric;

[0023] 2. In the present invention, the current parameters in the energized solenoid are adjusted by the control circuit, so that the puncture depth of the needle is adjusted, so that the device can adjust the puncture depth according to the thickness of the nonwoven fabric to be processed, ensuring that the nonwoven fabric can achieve the best puncture effect;

[0024] 3. In the present invention, by adjusting the size of the flow opening, the amount of fluid entering the main flow chamber can be accurately controlled, thereby affecting the flow speed of the fluid between the main flow chamber and the two auxiliary flow chambers, thereby controlling the puncture speed of the needle. The adjustability of the puncture speed increases the flexibility of the processing process, allowing the needle speed to be optimized according to different fiber types, fiber web structures and product requirements, thereby obtaining the best processing effect;

[0025] 4. In the present invention, the high-speed airflow generated by the compressed air fan is blown to the inner cavity of the puncture hole through the nozzle, and the fibers, dust and impurities attached to the needles are peeled off and blown away by controlling the up and down movement of the needles, utilizing the momentum and pressure of the airflow, thereby effectively removing fiber entanglement and impurities on the surface of the needles, and significantly improving the cleanliness and uniformity of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A three-dimensional cross-sectional view of the middle isolation board;

[0028] Figure 3 For the present invention Figure 1 A three-dimensional cross-sectional view of the middle sliding plate;

[0029] Figure 4 For the present invention Figure 1 A three-dimensional cross-sectional view of the median puncture hole;

[0030] Figure 5 For the present invention Figure 2 Schematic diagram of the overall structure of the control mechanism;

[0031] In the figure: 1. limit box; 11. main flow chamber; 12. secondary flow chamber; 13. sealing cover; 14. electromagnet; 2. limit seat; 21. puncture hole; 22. dust storage bin; 23. laser displacement sensor; 24. compression fan; 25. nozzle; 26. dust discharge hole; 3. isolation plate; 31. flow port; 311. slide groove; 32. first baffle; 33. second baffle; 34. control mechanism; 341. servo motor; 342. drive shaft; 343. gear; 344. transmission rod; 345. connecting seat; 4. sliding plate; 41. second puncture needle; 42. movable plate; 43. spring; 44. guide rail; 45. slide bar; 46. magnetic ring; 47. movable groove; 47. movable groove; 48. fixed plate; 5. transmission plate; 51. first puncture needle; 6. solenoid; 7. power supply. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] See also Figure 1-5 , the present invention provides a technical solution:

[0035] A nonwoven needle linkage device, comprising

[0036] A limit box 1, wherein the inner cavity of the limit box 1 is provided with two isolation plates 3, and the inner cavity of the limit box 1 is divided into a main flow cavity 11 and two auxiliary flow cavities 12 by the isolation plates 3, and the two auxiliary flow cavities 12 are correspondingly provided on both sides of the main flow cavity 11, and transmission fluid is provided inside the main flow cavity 11 and the auxiliary flow cavity 12, and the inner cavity of the main flow cavity 11 is provided with a transmission plate 5, and the bottom of the transmission plate 5 is provided with a first puncture needle 51, and the inner cavity of the auxiliary flow cavity 12 is provided with a sliding plate 4, and the bottom of the sliding plate 4 is provided with a second puncture needle 41, and the top of the limit box 1 is provided with a sealing cover 13;

[0037] The solenoid 6 is arranged on the top of the sealing cover 13, the top of the solenoid 6 is provided with a power supply 7, and the transmission plate 5 is made of a permanent magnet;

[0038] A flow port 31 is provided on the surface of the isolation plate 3, and the transmission fluid flows through the flow port 31 in the inner cavity of the main flow cavity 11 and the auxiliary flow cavity 12. A first baffle 32 and a second baffle 33 are provided on the inner wall of the flow port 31. A control mechanism 34 is provided inside the isolation plate 3 above the first baffle 32, and the movement of the first baffle 32 and the second baffle 33 can be controlled by the control mechanism 34.

[0039] The inner cavity of the sliding plate 4 is provided with a movable plate 42, the bottom of the movable plate 42 is fixedly connected to the top of the second needle 41, magnetic rings 46 are provided on both sides of the movable plate 42, and electromagnets 14 are provided on both sides of the limit box 1. In this embodiment, the solenoid 6 is powered by the power supply 7, so that the solenoid 6 generates a magnetic field with a periodic change in direction. Since the transmission plate 5 is cast as a permanent magnet, the transmission plate 5 is moved downward by the attraction or repulsion of the solenoid 6. When the transmission plate 5 moves up and down, the transmission fluid is caused to flow in the inner cavities of the main flow cavity 11 and the auxiliary flow cavity 12 under the action of pressure. When the transmission plate 5 drives the first needle 51 to puncture, the sliding plate 4 drives the second needle 41 to puncture.

[0040] In this embodiment, please refer to Figure 1 , Figure 4 A limiting seat 2 is arranged below the limiting box 1, and a puncture hole 21 is arranged on the surface of the limiting seat 2. The first needle 51 and the second needle 41 puncture the nonwoven fabric through the puncture hole 21. A compression fan 24 is arranged inside the limiting seat 2, and the compression fan 24 is connected to a nozzle 25 through a conduit. The air outlet of the nozzle 25 protrudes from the inner wall of the puncture hole 21. In this embodiment, a compressed airflow is generated by the compression fan 24, and a high-speed airflow is ejected from the air outlet of the nozzle 25 through the conduit. When the needle is located in the puncture hole 21, the high-speed airflow is used to clean the needle.

[0041] In this embodiment, please refer to Figure 5 The control mechanism 34 includes a servo motor 341, the output end of the servo motor 341 is fixedly connected to a driving shaft 342, the bottom end of the driving shaft 342 is provided with a gear 343, and a transmission rod 344 is provided on both sides of the gear 343. The corresponding surfaces of the transmission rod 344 and the gear 343 are provided with gear grooves that match the gear 343. One end of the transmission rod 344 is provided with a connecting seat 345, and the bottoms of the two connecting seats 345 are respectively connected to the tops of the first baffle 32 and the second baffle 33. In this embodiment, the servo motor 341 is used to give power to control the rotation of the gear 343. Since the inner wall of the transmission rod 344 is provided with a gear groove that matches the outer side of the gear 343, when the gear 343 rotates, the two transmission rods 344 can be driven to move, thereby driving the first baffle 32 and the second baffle 33 to move through the connecting seat 345, thereby changing the speed of the transmission fluid passing through the flow port 31.

[0042] In this embodiment, please refer to Figure 3 Springs 43 are provided at both ends of the inner cavity of the sliding plate 4, and a movable groove 47 is provided at the bottom of the inner cavity of the sliding plate 4. The second needle 41 can move along the movable groove 47. In this embodiment, by providing the spring 43, when the electromagnet 14 generates suction or repulsion on the magnetic ring 46, the movable plate 42 moves in the inner cavity of the second needle 41 and squeezes the spring 43 to deform it. When the electromagnet 14 stops energizing, the magnetic force or repulsion disappears, the spring 43 loses pressure and rebounds, the movable plate 42 automatically returns to its original position, and the second needle 41 returns to its original position. At the same time, the spring 43 is made of non-magnetic material to avoid being affected by the magnetic field.

[0043] In this embodiment, please refer to Figure 4 The inner wall of the puncture hole 21 is also provided with a number of dust discharge holes 26, and dust storage bins 22 are provided on both sides of the limiting seat 2. The dust discharge holes 26 are connected with the inner cavity of the dust storage bin 22. In this embodiment, when the nozzle 25 sprays high-speed airflow, since the inner cavity of the puncture hole 21 is annular, the airflow rotates around the inner wall of the puncture hole 21. Under the action of centrifugal force, the gas drives the impurities on the surface of the needle into the dust storage bin 22, and the pollutants are collected by the dust storage bin 22 to avoid secondary pollution of the non-woven fabric.

[0044] In this embodiment, please refer to Figure 1 A shielding cover is provided on the outside of the solenoid 6, a shielding layer is provided on the inside of the isolation plate 3, and the sliding plate 4 is made of non-magnetic material. In this embodiment, the magnetic field generated by the solenoid 6 only acts on the transmission plate 5 to control the transmission plate 5 to move up and down, and the magnetic field generated by the electromagnet 14 only acts on the magnetic coil 46 to avoid affecting the transmission effect of the transmission plate 5.

[0045] In this embodiment, please refer to Figure 1 A laser displacement sensor 23 is provided at the bottom of the limit seat 2, and the laser displacement sensor 23 is used to measure the thickness of the non-woven fabric in real time. In this embodiment, the laser displacement sensor 23 is connected to a computer, and the laser displacement sensor 23 emits a laser beam to the surface of the non-woven fabric. The laser is reflected and received by the laser displacement sensor 23. The distance from the laser displacement sensor 23 to the non-woven fabric is calculated according to the laser reflection speed through a computer program, and the distance is subtracted from the distance between the laser displacement sensor 23 and the conveyor belt to obtain the thickness of the non-woven fabric. According to the measured thickness information, the puncture depth of the needle is adjusted.

[0046] In this embodiment, please refer to Figure 2A sliding groove 311 is provided inside the isolation plate 3, and the sliding groove 311 runs through the side of the isolation plate 3, the first baffle plate 32 and the second baffle plate 33 slide through the sliding groove 311, and the connecting seat 345 is connected to the first baffle plate 32 and the second baffle plate 33 by bolts. In this embodiment, when the second baffle plate 33 or the first baffle plate 32 is worn (such as the sealing ability deteriorates), by adjusting the position of the first baffle plate 32 and the second baffle plate 33 so that the bolts correspond to the operating holes opened on the top of the isolation plate 3, the first baffle plate 32 and the second baffle plate 33 can be easily removed for replacement and maintenance by removing the bolts.

[0047] In this embodiment, please refer to Figure 2 The corresponding surfaces of the first baffle 32 and the second baffle 33 are provided with corresponding sealing rings and sealing plugs. In this embodiment, by making the flow port 31 and the corresponding surfaces of the first baffle 32 contact each other, the transmission fluid cannot flow through the flow port 31, so that the sliding plate 4 on one side cannot move, the position of the second puncture needle 41 is fixed, and the unilateral puncture function is realized, which provides the possibility for special processing requirements and further enhances the applicability and flexibility of the device.

[0048] In this embodiment, please refer to Figure 3 Slide bars 45 are provided on both sides of the movable plate 42, and guide rails 44 adapted to the slide bars 45 are provided on the inner wall of the sliding plate 4. Fixed plates 48 fixed by bolts are provided on both sides of the sliding plate 4. In this embodiment, the slide bars 45 and the guide rails 44 are adapted to each other, so that the movable plate 42 moves more smoothly on the inner wall of the sliding plate 4, the contact area is reduced, the friction force is reduced, and the electromagnet 14 generates a smaller suction or repulsion force, which can drive the second needle 41 to move.

[0049] Working principle of the present invention:

[0050] Step 1: By injecting current into the electromagnet 14, the electromagnet 14 generates a magnetic field. Under the action of the magnetic field, the magnetic ring 46 generates suction, so that the magnetic ring 46 drives the movable plate 42 to move in the direction of the electromagnet 14, and squeezes the spring 43 to deform it, so that the second needle 41 moves along the movable groove 47. By adjusting the direction of the current in the electromagnet 14, the magnetic pole of the electromagnet 14 will also change accordingly, so that the second needle 41 moves in the opposite direction of the electromagnet 14, so that the position of the second needle 41 changes. After stopping injecting current into the electromagnet 14, The spring 43 rebounds when it loses pressure, thereby pushing the movable plate 42 back to its original position, and the second puncture needle 41 back to its original position. By adjusting the voltage of the power supply 7, the current passing through the solenoid 6 can be directly controlled. Increasing the power supply voltage will increase the current intensity, thereby enhancing the magnetic field generated by the solenoid 6, so that the transmission plate 5 has a larger range of motion in the main flow chamber 11, so that the puncture depth of the first puncture needle 51 is deeper. By increasing the range of motion of the transmission plate 5, the range of motion of the sliding plate 4 is increased under the pressure of the transmission fluid, so that the puncture depth of the second puncture needle 41 is deeper;

[0051] Step 2: The servo motor 341 is used to provide power to control the rotation of the drive shaft 342, and the rotation of the drive shaft 342 drives the gear 343 to rotate. Since the two sides of the gear 343 are respectively provided with transmission rods 344 that mesh with each other, the two transmission rods 344 are driven to move by controlling the rotation of the gear 343, and the two transmission rods 344 can be made to move toward or away from each other by controlling the rotation direction of the gear 343. When the two transmission rods 344 move toward each other, the first baffle 32 and the second baffle 33 are driven by the connecting seat 345, so that the distance between them gradually changes. When the two transmission rods 344 move in opposite directions, the distance between the two first baffles 32 gradually increases under the drive of the connecting seat 345, so that the flow volume of the flow port 31 decreases. When the flow speed of the transmission fluid between the main flow chamber 11 and the two auxiliary flow chambers 12 changes, the movement speed of the sliding plate 4 can be adjusted to change the needle speed of the second needle 41 on the non-woven fabric. A faster needle penetration speed can more effectively penetrate the short fibers on the surface of the fiber web into the interior, promote the entanglement and interweaving between the fibers, and make the non-woven fabric denser. This helps to improve the physical properties and structural stability of the non-woven fabric, while a slower needle penetration speed can better control the winding mode and direction of the fibers, thereby protecting the integrity and mechanical properties of the fibers, especially when dealing with high-value or sensitive fibers;

[0052] Step 3: A compressed air blower 24 is provided to generate compressed air, which is ejected from the nozzle 25 through a pipe to form a high-speed airflow. At this time, by controlling the needle to move up and down along the inner cavity of the puncture hole 21, the high-speed airflow impacts the needle and the fibers and impurities around it, and blows them off the surface of the needle. At the same time, the airflow forms a vortex around the needle, further enhancing the cleaning effect. Since the inner cavity of the puncture hole 21 is cylindrical, when the high-speed airflow is ejected through the nozzle 25, the airflow will rotate along the inner cavity of the puncture hole 21, and the airflow will drive the fibers and impurities blown off the needle. During the rotation of the inner cavity of the puncture hole 21, the fibers and impurities are collected into the dust storage bin 22 through the dust discharge hole 26, so as to prevent the pollutants from falling on the surface of the non-woven fabric and forming secondary pollution.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nonwoven needle linkage device, characterized in that: include A limit box (1), wherein the inner cavity of the limit box (1) is provided with two isolation plates (3), and the inner cavity of the limit box (1) is divided into a main flow cavity (11) and two secondary flow cavities (12) by the isolation plates (3); the two secondary flow cavities (12) are respectively arranged on both sides of the main flow cavity (11); transmission fluid is arranged inside the main flow cavity (11) and the secondary flow cavity (12); the inner cavity of the main flow cavity (11) is provided with a transmission plate (5); the bottom of the transmission plate (5) is provided with a first needle (51); the inner cavity of the secondary flow cavity (12) is provided with a sliding plate (4); the bottom of the sliding plate (4) is provided with a second needle (41); and the top of the limit box (1) is provided with a sealing cover (13); A solenoid (6) is arranged on the top of the sealing cover (13), a power source (7) is arranged on the top of the solenoid (6), and the transmission plate (5) is made of a permanent magnet; A flow opening (31) is provided on the surface of the isolation plate (3), and the transmission fluid flows through the flow opening (31) in the inner cavities of the main flow chamber (11) and the auxiliary flow chamber (12); a first baffle (32) and a second baffle (33) are provided on the inner wall of the flow opening (31); a control mechanism (34) is provided inside the isolation plate (3) above the first baffle (32); and the movement of the first baffle (32) and the second baffle (33) can be controlled by the control mechanism (34); The inner cavity of the sliding plate (4) is provided with a movable plate (42), the bottom of the movable plate (42) is fixedly connected to the top of the second needle (41), magnetic rings (46) are provided on both sides of the movable plate (42), and electromagnets (14) are provided on both sides of the limit box (1); Springs (43) are arranged at both ends of the inner cavity of the sliding plate (4), and a movable groove (47) is provided at the bottom of the inner cavity of the sliding plate (4), and the second needle (41) can move along the movable groove (47); A limit seat (2) is arranged below the limit box (1); a puncture hole (21) is arranged on the surface of the limit seat (2); the first needle (51) and the second needle (41) puncture the non-woven fabric through the puncture hole (21); a compression fan (24) is arranged inside the limit seat (2); the compression fan (24) is connected to a nozzle (25) via a conduit; the air outlet of the nozzle (25) protrudes from the inner wall of the puncture hole (21); The control mechanism (34) comprises a servo motor (341), the output end of the servo motor (341) is fixedly connected to a driving shaft (342), a gear (343) is provided at the bottom end of the driving shaft (342), a transmission rod (344) is provided on both sides of the gear (343), a gear groove that is mutually compatible with the gear (343) is provided on the corresponding surfaces of the transmission rod (344) and the gear (343), a connecting seat (345) is provided at one end of the transmission rod (344), and the bottoms of the two connecting seats (345) are respectively connected to the tops of the first baffle (32) and the second baffle (33); A laser displacement sensor (23) is provided at the bottom of the limiting seat (2), and the laser displacement sensor (23) is used to measure the thickness of the non-woven fabric in real time.

2. A nonwoven needle linkage device according to claim 1, characterized in that: The inner wall of the puncture hole (21) is also provided with a plurality of dust discharge holes (26), and dust storage bins (22) are provided on both sides of the limiting seat (2), and the dust discharge holes (26) are in communication with the inner cavity of the dust storage bin (22).

3. The nonwoven needle linkage device according to claim 1, characterized in that: A shielding cover is provided on the outside of the solenoid (6), a shielding layer is provided inside the isolation plate (3), and the sliding plate (4) is made of a non-magnetic material.

4. The nonwoven needle linkage device according to claim 1, characterized in that: A sliding groove (311) is provided inside the isolation plate (3), and the sliding groove (311) runs through the side surface of the isolation plate (3); the first baffle plate (32) and the second baffle plate (33) slide through the sliding groove (311); and the connecting seat (345) is connected to the first baffle plate (32) and the second baffle plate (33) by bolts.

5. The nonwoven needle linkage device according to claim 1, characterized in that: The corresponding surfaces of the first baffle plate (32) and the second baffle plate (33) are provided with corresponding sealing rings and sealing plugs.

6. The nonwoven needle linkage device according to claim 1, characterized in that: Slide bars (45) are arranged on both sides of the movable plate (42), guide rails (44) adapted to the slide bars (45) are arranged on the inner wall of the sliding plate (4), and fixed plates (48) fixed by bolts are arranged on both sides of the sliding plate (4).

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