A nonwoven card structure

Abstract

The application discloses a non-woven fabric carding machine structure, which comprises a machine body of the carding machine, an upper arm, an upper driving roller, an upper motor, an upper driven roller, an upper belt arranged between the upper driving roller and the upper driven roller, a lower arm, a lower driving roller, a lower motor, a lower driven roller, a lower belt arranged between the lower driving roller and the lower driven roller, a support arranged on one side of the machine body at an outlet end, a conveying belt arranged on the support and used for conveying the superimposed upper and lower non-woven fabrics, an upper magnetic suction roller arranged on the support and used for abutting against the upper non-woven fabric, a lower magnetic suction roller arranged on the support and used for abutting against the lower non-woven fabric, and a connecting arm arranged on the support and used for rotationally connecting the upper magnetic suction roller and the lower magnetic suction roller and extending in a vertical upward direction.

Description

Technical Field

[0001] This invention belongs to the field of nonwoven fabric production technology, and specifically relates to a nonwoven fabric carding machine structure. Background Technology

[0002] Nonwoven fabric is a new type of material widely used in various industries. One of the key steps in its production is carding. A nonwoven carding machine is a device specifically designed for carding nonwoven fabrics.

[0003] The general process flow of a needle-punched nonwoven fabric production line is as follows: raw materials - opening machine - cotton feeder - carding machine - web laying machine - needle punching machine - ironing machine - winding machine - finished product.

[0004] The main components of a nonwoven fabric carding machine include a feeding system, a carding system, and a discharging system. The feeding system feeds the raw materials into the carding system, while the discharging system sends out the carded nonwoven fabric. The carding system is the core of the entire nonwoven fabric carding machine, consisting of multiple comb teeth and a motor. It uses high-speed rotating comb teeth to card the nonwoven fabric.

[0005] Chinese patent CN206396370U, published on August 11, 2017, discloses a nonwoven fabric carding machine edge suction device, which includes a frame, a large cylinder, two sets of doffers, two sets of stripping rollers, several sets of carding rollers, a doffer motor, a suction pipe, an edge suction fan assembly, and a cover plate. The large cylinder is installed on the frame. The two sets of stripping rollers and the two sets of doffers are installed on one side of the large cylinder in an up-down manner. The two sets of doffers are driven by the doffer motor in a chain drive manner. The several sets of carding rollers are installed on the annular side of the large cylinder in a ring arrangement. The suction pipe is installed between the two sets of doffers, and one end is connected to the edge suction fan assembly. The cover plate is installed on the frame to cover both sides of the large cylinder.

[0006] Two sets of stripping rollers and two sets of doffers are installed on one side of the large carding machine in an up-down configuration, so two layers of nonwoven fabric will be conveyed out from the carding machine.

[0007] Meanwhile, Chinese Patent Publication No. CN110777450A, published on February 11, 2020, discloses a carding machine. The nonwoven fabric has fiber lengths of 12 mm to 25 mm and an MD / CD ratio of less than 2:1. Fibers or fiber bundles are fed to the carding machine on the feed side, where they are opened to individual fibers and oriented on the cylinder by means of working rollers and stripping rollers. The resulting fiber web is removed from the cylinder by means of at least two doffers, wherein the diameter of the doffers is at least 80% of the cylinder diameter. Each layer of the fiber web is removed from each doffer by corresponding compression rollers and stacked directly or indirectly on at least one conveyor belt. Downstream of the carding machine, the layers are then interconnected and reinforced by means of hydroentangling.

[0008] The two layers of nonwoven fabric conveyed from the carding machine are transported by two conveyor belts. The two layers of nonwoven fabric are stacked together, and the stacked nonwoven fabric can then be transported to the next process, the web laying machine, by the conveyor belt.

[0009] However, during the collection of nonwoven fabric raw materials, it is inevitable that small iron filings will be mixed in. If these iron filings are not cleaned in time, they will affect the quality of the processed nonwoven fabric. Summary of the Invention

[0010] The purpose of this invention is to provide a nonwoven fabric carding machine structure that can clean iron filings trapped inside nonwoven fabrics.

[0011] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a nonwoven fabric carding machine structure, comprising a carding machine body, upper arms fixed on both sides at the discharge end of the machine body, an upper drive roller rotatably connected to one end of the upper arm near the machine body, an upper motor mounted on the upper arm for driving the upper drive roller to rotate, an upper driven roller rotatably connected to one end of the upper arm away from the machine body, an upper belt mounted between the upper drive roller and the upper driven roller, lower arms fixed on both sides at the discharge end of the machine body, a lower drive roller rotatably connected to one end of the lower arm near the machine body, and a lower motor mounted on the lower arm for driving the lower drive roller to rotate. The machine includes a lower driven roller rotatably connected to the lower arm at the end away from the machine body, a lower belt disposed between the lower driving roller and the lower driven roller, a support disposed on the side of the machine body at the discharge end, and a conveyor belt located on the support for conveying the upper and lower layers of nonwoven fabric after they are stacked. An upper magnetic roller for abutting against the upper nonwoven fabric is disposed on the support between the upper and lower layers of nonwoven fabric, and a lower magnetic roller for abutting against the lower nonwoven fabric is disposed on the support between the upper and lower layers of nonwoven fabric. A connecting arm is disposed on the support for rotatably connecting the ends of the upper and lower magnetic rollers and extending in a vertically upward direction.

[0012] By adopting the above technical solution, when the upper nonwoven fabric on the upper belt is conveyed to the conveyor belt, the upper nonwoven fabric will come into contact with the upper magnetic roller. At this time, the upper magnetic roller can pick up the iron filings mixed in the upper nonwoven fabric. At the same time, when the lower nonwoven fabric on the lower belt is conveyed to the conveyor belt, the lower nonwoven fabric will come into contact with the lower magnetic roller. At this time, the lower magnetic roller can pick up the iron filings mixed in the lower nonwoven fabric. Finally, the iron filings mixed in the nonwoven fabric can be cleaned, avoiding the iron filings from affecting the quality of the processed nonwoven fabric.

[0013] A further provision of the present invention is that a drive assembly for driving the upper magnetic roller and the lower magnetic roller to rotate is provided between the upper arm and the connecting arm, and a collection box is provided between the upper and lower magnetic rollers, with the upper and lower sides respectively abutting against the upper and lower magnetic rollers, and the rotation direction of the upper magnetic roller and the lower magnetic roller is towards one side inside the collection box.

[0014] By adopting the above technical solution, the iron filings adsorbed on the surfaces of the upper and lower magnetic rollers will affect the transmission of the nonwoven fabric, causing a portion of the nonwoven fabric to become entangled on the surfaces of the upper and lower magnetic rollers. At this time, the drive assembly is used to drive the upper and lower magnetic rollers to rotate, and the rotation direction of the upper and lower magnetic rollers is towards one side of the collection box. As the upper and lower magnetic rollers rotate, the iron filings on the surfaces of the upper and lower magnetic rollers can be scraped off by the collection box. The scraped iron filings can be located inside the collection box, and finally the iron filings on the surfaces of the upper and lower magnetic rollers can be efficiently collected through the collection box.

[0015] A further configuration of the present invention is as follows: the drive assembly includes a drive pulley disposed at the end of the upper driven roller, a driven pulley disposed at the end of the upper magnetic roller, and a transmission belt disposed between the drive pulley and the driven pulley.

[0016] By adopting the above technical solution, when the upper driven roller drives the upper belt to transport the upper nonwoven fabric, the upper driven roller will also drive the driving pulley to rotate. At this time, the driving pulley can drive the upper magnetic roller to rotate through the transmission belt and the driven pulley, and finally realize the linkage between the upper driven roller and the upper magnetic roller.

[0017] A further embodiment of the present invention is that the driving assembly further includes a driving gear disposed at the end of the upper magnetic roller and a driven gear disposed at the end of the lower magnetic roller and meshing with the driving gear.

[0018] By adopting the above technical solution, when the upper magnetic roller rotates, it can drive the drive gear to rotate, and the drive gear can drive the lower magnetic roller to rotate through the driven gear, thus completing the drive rotation of the upper and lower magnetic rollers.

[0019] A further feature of the present invention is that a guide slope is provided on the inner side of the collection box.

[0020] By adopting the above technical solution, the collection box uses the guide slope to guide the iron filings, which facilitates the smooth scraping of the iron filings into the collection box.

[0021] A further provision of the present invention is that: the opening of the collection box is provided with a pressure plate for pressing the iron filings adsorbed on the side of the collection box into the box; and a linkage is provided between the collection box and the upper driven roller for driving the pressure plate to move in and out of the collection box.

[0022] By adopting the above technical solution, since the iron filings entering the collection box are still attracted by the upper or lower magnetic roller, the iron filings in the collection box will accumulate on the side of the collection box. At this time, as the iron filings accumulate too much on the side of the collection box, the iron filings will fall from the side of the collection box. The iron filings that fall out of the collection box will fall downwards and land on the surface of the lower non-woven fabric, which will ultimately be detrimental to the stable collection of iron filings in the collection box. At this point, the pressure plate at the opening of the collection box is used. The linkage can drive the pressure plate to move in and out of the collection box, thereby pressing the iron filings on the side of the collection box into the inside of the collection box.

[0023] A further configuration of the present invention is as follows: the linkage includes guide posts disposed at both ends of the pressure plate, a guide sleeve disposed at the end of the collection box and through which the guide posts pass, a connecting rod disposed at the end of the guide post away from the pressure plate, a rotating arm with one end connected to the end of the upper driven roller and the other end used to push the connecting rod, and a reset spring sleeved on the guide post with one end connected to the connecting rod and the other end connected to the outer wall of the collection box.

[0024] By adopting the above technical solution, the rotation of the upper driven roller can drive the rotating arm to rotate. After the rotating arm rotates to the position of the connecting rod, it can drive the connecting rod and the guide column to move, and the return spring is stretched. The guide column can then drive the pressure plate to press into the collection box. At the same time, when the rotating arm disengages from the connecting rod, the return spring can elastically recover. At this time, the guide column can then drive the pressure plate to move out of the collection box. Finally, the rotation of the upper driven roller can complete the driving operation of the pressure plate moving in and out of the collection box, realizing the linkage between the upper driven roller and the pressure plate.

[0025] A further feature of the present invention is that both the guide post and the guide sleeve have rectangular cross-sections.

[0026] By adopting the above technical solution, the cross-sections of both the guide post and the guide sleeve are rectangular, thereby preventing the guide post from rotating inside the guide sleeve, which is beneficial for the rotating arm to stably drive the connecting rod and the guide post to move.

[0027] A further feature of the present invention is that magnetic suction rods are provided inside both sides of the collection box for contact with pressure plates that move toward the inside of the collection box.

[0028] By adopting the above technical solution, when the iron filings at the side of the collection box are pressed into the collection box by the pressure plate, the magnetic suction rod inside the collection box is used to pick up the pressed iron filings, which is conducive to the stable collection of iron filings into the collection box.

[0029] The beneficial effects of this invention are as follows: When the upper nonwoven fabric on the upper belt is conveyed to the conveyor belt, the upper nonwoven fabric will come into contact with the upper magnetic roller. At this time, the upper magnetic roller can pick up the iron filings mixed in the upper nonwoven fabric. At the same time, when the lower nonwoven fabric on the lower belt is conveyed to the conveyor belt, the lower nonwoven fabric will come into contact with the lower magnetic roller. At this time, the lower magnetic roller can pick up the iron filings mixed in the lower nonwoven fabric. After the iron filings are picked up, the upper and lower nonwoven fabrics can be stacked together and then conveyed out by the conveyor belt. When the upper driven roller drives the upper belt to transport the nonwoven fabric, it also drives the driving pulley to rotate. At this time, the driving pulley can drive the upper magnetic roller to rotate through the transmission belt and the driven pulley. Simultaneously, when the upper magnetic roller rotates, it can drive the driving gear to rotate, and the driving gear can drive the lower magnetic roller to rotate through the driven gear. The rotation direction of both the upper and lower magnetic rollers is towards one side inside the collection box. As the upper and lower magnetic rollers rotate, the iron filings on the surface of the upper and lower magnetic rollers can be scraped off by the collection box, and the scraped iron filings can be located inside the collection box. Simultaneously, the driven roller drives the rotating arm to rotate. After the rotating arm rotates to the position of the connecting rod, it drives the connecting rod and the guide column to move, and the return spring is stretched. The guide column then drives the pressure plate to press into the collection box. When the rotating arm disengages from the connecting rod, the return spring elastically recovers, and the guide column then drives the pressure plate to move out of the collection box. Finally, the rotation of the driven roller completes the driving operation of the pressure plate moving in and out of the collection box. The pressure plate presses the iron filings on the side of the collection box into the collection box. At the same time, the magnetic suction rod inside the collection box picks up the pressed iron filings, which helps to stably collect the iron filings into the collection box. Ultimately, this process can remove iron filings trapped inside the nonwoven fabric, preventing them from affecting the quality of the processed nonwoven fabric. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural plan view of the present invention; Figure 2 This is an enlarged view of the connection structure between the upper arm, lower arm, bracket, upper magnetic roller, and lower magnetic roller in this invention; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a partially enlarged view of the connection relationship between the upper driven roller, the upper magnetic roller, the lower magnetic roller, the drive assembly, and the linkage components in this invention; Figure 5 This is a plan view of the connection relationship between the driven roller, the upper magnetic roller, the lower magnetic roller and the linkage component in this invention. At this time, the reset spring is in the natural state and the pressure plate is located outside the collection box. Arrows are used to indicate the rotation direction of each roller, and dashed lines are used to indicate the position of the non-woven fabric. Figure 6 This is a plan view of the connection relationship between the driven roller, the upper magnetic roller, the lower magnetic roller and the linkage in this invention. At this time, the rotating arm drives the connecting rod to move to the left limit position and the pressure plate abuts against the magnetic rod.

[0032] In the diagram, 1. Machine body; 11. Feed roller; 12. Licking roller; 13. Chest cylinder roller; 14. Chest work roller; 15. Chest stripping roller; 16. Middle doffer roller; 17. Transfer roller; 18. Main cylinder roller; 19. Main work roller; 101. Main stripping roller; 102. Doffer roller; 103. Coagulating roller; 104. Stripping roller; 2. Upper arm; 21. Upper drive roller; 22. Upper motor; 23. Upper driven roller; 24. Upper belt; 3. Lower arm; 31. Lower drive roller; 32. Lower motor; 33. Lower driven roller; 34. Lower belt; 40. Support; 401. Conveyor belt; 402. Connecting arm; 4. Upper magnetic roller; 5. Lower magnetic roller; 6. Drive assembly; 61. Drive pulley; 62. Driven pulley; 63. Transmission belt; 64. Drive gear; 65. Driven gear; 7. Collection box; 71. Guide ramp; 72. Pressure plate; 73. Magnetic rod; 8. Linkage component; 81. Guide column; 82. Guide sleeve; 83. Connecting rod; 84. Rotating arm; 85. Return spring. Detailed Implementation

[0033] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] A nonwoven fabric carding machine structure, referring to Figure 1The structure of this nonwoven carding machine includes a machine body 1, an upper arm 2, an upper drive roller 21, an upper motor 22, an upper driven roller 23, an upper belt 24, a lower arm 3, a lower drive roller 31, a lower motor 32, a lower driven roller 33, a lower belt 34, a support 40, and a transmission belt 401. The internal structure of the machine body 1 is existing technology, and from the feeding end to the discharging end, it mainly includes a feed roller 11, a licker roller 12, a breast cylinder roller 13, a breast working roller 14, a breast stripping roller 15, a middle doffer roller 16, a transfer roller 17, a main cylinder roller 18, a main working roller 19, a main stripping roller 101, a doffer roller 102, a cohesive roller 103, and a stripping roller 104. The specific structure will not be described in detail here.

[0035] Reference Figure 1 , Figure 2 The upper arm 2 is bolted to both sides of the discharge end of the machine body 1. The upper drive roller 21 is rotatably connected to the end of the upper arm 2 near the machine body 1. The upper motor 22 is bolted to the upper arm 2 and its output shaft is connected to the upper drive roller 21. The upper driven roller 23 is rotatably connected to the end of the upper arm 2 away from the machine body 1. The upper belt 24 is connected between the upper drive roller 21 and the upper driven roller 23. The lower arm 3 is bolted to both sides of the discharge end of the machine body 1 and is located below the upper arm 2. The lower drive roller 31 is rotatably connected to the end of the lower arm 3 near the machine body 1. The lower motor 32 is bolted to the lower arm 3 and its output shaft is connected to the lower drive roller 31. The lower driven roller 33 is rotatably connected to the end of the lower arm 3 away from the machine body 1. The lower belt 34 is connected between the lower drive roller 31 and the lower driven roller 33.

[0036] Reference Figure 1 , Figure 2 The support 40 is located on one side of the discharge end of the machine body 1. The support 40 is fixed to the ground by bolts. The conveyor belt 401 is installed on the support 40 and is used to transport the upper and lower non-woven fabrics after they are stacked. Since the structure of the conveyor belt 401 itself is existing technology, it will not be described in detail here. At the same time, an upper magnetic roller 4 is provided on the support 40 between the upper and lower non-woven fabrics for contacting the upper non-woven fabric, and a lower magnetic roller 5 is provided on the support 40 between the upper and lower non-woven fabrics for contacting the lower non-woven fabric. The support 40 is integrally provided with a connecting arm 402 at the end of the upper magnetic roller 4 and the lower magnetic roller 5, and the connecting arm 402 extends vertically upward. The connecting arm 402 allows the ends of the upper magnetic roller 4 and the lower magnetic roller 5 to be rotatably connected through the bearing seat.

[0037] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5A drive assembly 6 for rotating the upper magnetic roller 4 and the lower magnetic roller 5 is also provided between the upper arm 2 and the connecting arm 402. This drive assembly 6 includes a drive pulley 61, a driven pulley 62, a transmission belt 63, a drive gear 64, and a driven gear 65. The drive pulley 61 is keyed to the end of the upper driven roller 23, while the driven pulley 62 is keyed to the end of the upper magnetic roller 4. The transmission belt 63 connects the drive pulley 61 and the driven pulley 62, and the drive gear 64 is keyed to the upper magnetic roller 4. At the end of the suction roller 4, the driven gear 65 is keyed to the end of the lower magnetic suction roller 5 and meshes with the driving gear 64; at the same time, a collection box 7 is also provided between the upper magnetic suction roller 4 and the lower magnetic suction roller 5. The end of the collection box 7 is fixed to the connecting arm 402 by bolts. The upper and lower sides of the collection box 7 abut against the upper magnetic suction roller 4 and the lower magnetic suction roller 5 respectively, and a guide slope 71 is provided on the inner side of the side of the collection box 7. At the same time, the rotation direction of the upper magnetic suction roller 4 and the lower magnetic suction roller 5 is towards one side inside the collection box 7.

[0038] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 The collection box 7 has a pressure plate 72 at its opening. The pressure plate 72 is shaped to match the bottom wall of the collection box 7. The pressure plate 72 is used to press the iron filings adsorbed on the side of the collection box 7 into the box. At the same time, magnetic suction rods 73 are bolted to both sides of the collection box 7 to abut against the pressure plate 72 as it moves into the collection box 7. A linkage 8 is provided between the collection box 7 and the upper driven roller 23 to drive the pressure plate 72 in and out of the collection box 7. This linkage 8 includes a guide post 81, a guide sleeve 82, a connecting rod 83, a rotating arm 84, and a return spring 85. 81 is welded to both ends of the pressure plate 72, while the guide sleeve 82 is welded to both ends of the collection box 7 and corresponds to the positions of the two guide posts 81 respectively. The guide sleeve 82 allows the guide post 81 to pass through, and the cross-section of both the guide post 81 and the guide sleeve 82 is rectangular. At the same time, the connecting rod 83 is integrally set at the end of the guide post 81 away from the pressure plate 72, and one end of the rotating arm 84 is connected to the end of the upper driven roller 23 and the other end is used to push the connecting rod 83. The return spring 85 is sleeved on the guide post 81, and one end of the return spring 85 is welded to the connecting rod 83 and the other end is welded to the outer wall of the collection box 7.

[0039] Principle: When the upper nonwoven fabric on the upper belt 24 is conveyed to the conveyor belt 401, it will come into contact with the upper magnetic roller 4. At this time, the upper magnetic roller 4 can pick up the iron filings trapped in the upper nonwoven fabric. At the same time, when the lower nonwoven fabric on the lower belt 34 is conveyed to the conveyor belt 401, it will come into contact with the lower magnetic roller 5. At this time, the lower magnetic roller 5 can pick up the iron filings trapped in the lower nonwoven fabric. After the iron filings are picked up, the upper and lower nonwoven fabrics can be stacked together and conveyed out through the conveyor belt 401. When the upper driven roller 23 drives the upper belt 24 to transport the upper nonwoven fabric, the upper driven roller 23 will also drive the driving pulley 61 to rotate. At this time, the driving pulley 61 can drive the upper magnetic roller 4 to rotate through the transmission belt 63 and the driven pulley 62. At the same time, when the upper magnetic roller 4 rotates, it can drive the driving gear 64 to rotate. The driving gear 64 can drive the lower magnetic roller 5 to rotate through the driven gear 65. The rotation direction of the upper magnetic roller 4 and the lower magnetic roller 5 is towards one side inside the collection box 7. As the upper magnetic roller 4 and the lower magnetic roller 5 rotate, the iron filings on the surface of the upper magnetic roller 4 and the lower magnetic roller 5 can be scraped off by the collection box 7. The scraped iron filings can be located inside the collection box 7. Simultaneously, the driven roller 23 drives the rotating arm 84 to rotate. After the rotating arm 84 rotates to the position of the connecting rod 83, it drives the connecting rod 83 and the guide column 81 to move, and the return spring 85 is stretched. The guide column 81 can then drive the pressure plate 72 to press into the collection box 7. At the same time, when the rotating arm 84 disengages from the connecting rod 83, the return spring 85 can elastically recover. At this time, the guide column 81 can drive the pressure plate 72 to move out of the collection box 7. Finally, the rotation of the driven roller 23 completes the driving operation of the pressure plate 72 moving in and out of the collection box 7. Thus, the iron filings on the side of the collection box 7 are pressed into the collection box 7 by the pressure plate 72. At the same time, the magnetic suction rod 73 in the collection box 7 picks up the pressed iron filings. When the pressure plate 72 just touches the magnetic suction rod 73, the rotating arm 84 just separates from the connecting rod 83, which is conducive to the stable collection of iron filings into the collection box 7. Ultimately, this process can remove iron filings trapped inside the nonwoven fabric, preventing them from affecting the quality of the processed nonwoven fabric.

Claims

1. A structure for a nonwoven fabric carding machine, comprising a machine body (1), upper arms (2) fixed on both sides of the discharge end of the machine body (1), an upper drive roller (21) rotatably connected to one end of the upper arm (2) near the machine body (1), an upper motor (22) mounted on the upper arm (2) for driving the upper drive roller (21) to rotate, an upper driven roller (23) rotatably connected to one end of the upper arm (2) away from the machine body (1), an upper belt (24) mounted between the upper drive roller (21) and the upper driven roller (23), and lower arms (24) fixed on both sides of the discharge end of the machine body (1). 3) A lower drive roller (31) rotatably connected to the lower arm (3) near the machine body (1), a lower motor (32) mounted on the lower arm (3) for driving the lower drive roller (31) to rotate, a lower driven roller (33) rotatably connected to the lower arm (3) away from the machine body (1), a lower belt (34) mounted between the lower drive roller (31) and the lower driven roller (33), a bracket (40) mounted on the machine body (1) on the side of the discharge end, and a conveyor belt (401) mounted on the bracket (40) for conveying the upper and lower nonwoven fabrics after they are stacked together, characterized in that: An upper magnetic roller (4) for abutting against the upper nonwoven fabric is provided on the bracket (40) and located between the upper and lower nonwoven fabrics. A lower magnetic roller (5) for abutting against the lower nonwoven fabric is provided on the bracket (40) and located between the upper and lower nonwoven fabrics. A connecting arm (402) for rotatably connecting the ends of the upper magnetic roller (4) and the lower magnetic roller (5) and extending in the vertically upward direction is provided on the bracket (40). A drive assembly (6) for rotating the upper magnetic roller (4) and the lower magnetic roller (5) is provided between the upper arm (2) and the connecting arm (402). A collection box (7) is provided between the upper magnetic roller (4) and the lower magnetic roller (5) with its upper and lower sides respectively abutting against the upper magnetic roller (4) and the lower magnetic roller (5). The rotation direction of the upper magnetic roller (4) and the lower magnetic roller (5) is towards one side inside the collection box (7). A pressure plate (72) for pressing the iron filings adsorbed on the side of the collection box (7) into the box is provided at the opening of the collection box (7). A pressure plate (72) for driving the pressure plate (72) to move into the collection box (7) is provided between the collection box (7) and the upper driven roller (23). The linkage component (8) includes a guide post (81) at both ends of the pressure plate (72), a guide sleeve (82) at the end of the collection box (7) through which the guide post (81) passes, a connecting rod (83) at the end of the guide post (81) away from the pressure plate (72), a rotating arm (84) with one end connected to the end of the upper driven roller (23) and the other end used to push the connecting rod (83), and a reset spring (85) sleeved on the guide post (81) with one end connected to the connecting rod (83) and the other end connected to the outer wall of the collection box (7); both sides of the collection box (7) are provided with magnetic suction rods (73) for the pressure plate (72) to move toward the collection box (7).

2. The structure of a nonwoven fabric carding machine according to claim 1, characterized in that: The drive assembly (6) includes a drive pulley (61) disposed at the end of the upper driven roller (23), a driven pulley (62) disposed at the end of the upper magnetic roller (4), and a transmission belt (63) disposed between the drive pulley (61) and the driven pulley (62).

3. The structure of a nonwoven fabric carding machine according to claim 2, characterized in that: The drive assembly (6) further includes a drive gear (64) disposed at the end of the upper magnetic roller (4) and a driven gear (65) disposed at the end of the lower magnetic roller (5) and meshed with the drive gear (64).

4. The structure of a nonwoven fabric carding machine according to claim 1, characterized in that: The inner side of the collection box (7) is provided with a guide slope (71).

5. The structure of a nonwoven fabric carding machine according to claim 1, characterized in that: The cross-sections of the guide post (81) and the guide sleeve (82) are both rectangular.

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