Punching limiting device for special textile parts

Abstract

The invention discloses a punching limiting device for a textile special part, and relates to the technical field of textile machinery auxiliary equipment, the punching limiting device comprises a group of supporting columns used for supporting and fixing the whole device, and a spring is replaced by an annular electromagnet and a first electromagnetic guide rod electromagnetic driving structure; the roller body is directly fixed at the reference position of the circular center without depending on the deformation of a spring, so that the problem of instability caused by the deformation is avoided; the telescopic end of the first electromagnetic guide rod drives the flexible plate to clamp the roller, the clamping force is accurately controlled by adjusting current, force attenuation caused by mechanical fatigue is avoided, failure caused by stress relaxation is avoided, stable clamping can be kept for a long time, and binding force can be supplemented only by finely adjusting current parameters even if the roller or a limiting component is slightly abraded after long-term use. And the key problem that the compensation capability is reduced along with the use time in the prior art is thoroughly solved instead of passively depending on spring deformation in the prior art.

Description

Technical Field

[0001] This invention relates to the field of textile machinery auxiliary equipment technology, specifically a punching and limiting device for textile parts. Background Technology

[0002] In the process of intelligent and high-precision development of the textile industry, textile components, as the core functional units of textile machinery, directly determine the operational stability of textile equipment and the final quality of yarn and fabric through their processing accuracy. Among them, the punching process is a key link in the manufacturing of textile components. Precise holes need to be processed at specific locations on the components to meet the functional requirements of assembly, transmission, or yarn guiding. The limiting device is the core auxiliary component that ensures the accuracy of the punching position and avoids processing deviations.

[0003] Existing textile components mainly consist of core parts such as rollers, spindles, and troughs. Among these, the roller is one of the core components, primarily responsible for holding the yarn to achieve drafting, which determines the yarn's fineness and uniformity. To provide an installation reference for the roller, positioning holes need to be drilled at both ends, and these holes are used for positioning. The positioning pins and the mechanical mechanism of the positioning holes forcefully constrain the roller's position. To prevent the clearance between the positioning pins and the positioning holes from widening with repeated use, existing technologies typically use spring-loaded elastic pins. These pins provide preload through an internal spring, automatically compensating for the wear clearance between the positioning pins and the positioning holes, allowing the structure to be used multiple times. However, this approach still has the following problems: Existing springs will experience stress relaxation under long-term compression, causing their initial preload to gradually decrease over time. This decrease in preload directly manifests as a continuous weakening of the spring's ability to compensate for the wear gap between the locating pin and the limiting hole. When the cumulative wear gap between the locating pin and the limiting hole exceeds the remaining elastic deformation threshold that the spring can provide after stress relaxation, the spring will be unable to eliminate the excess gap between the locating pairs through elastic deformation, thus causing the elastic compensation function to completely fail and the positioning system to lose its effective hard constraint on the roller.

[0004] Therefore, we propose a perforation limiting device for textile parts to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a perforation limiting device for textile components, which solves the problem mentioned in the background art that existing springs will experience stress relaxation under long-term compression, causing their initial preload to gradually decrease over service time. The decrease in preload directly manifests as a continuous weakening of the spring's ability to compensate for the wear gap between the positioning pin and the limiting hole. When the cumulative wear gap between the positioning pin and the limiting hole exceeds the residual elastic deformation threshold that the spring can provide after stress relaxation, the spring will be unable to eliminate the excess gap between the positioning pairs through elastic deformation, thus causing the elastic compensation function to completely fail and the positioning system to lose effective hard constraint on the roller.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a perforation limiting device for textile parts, comprising: A set of support columns, used to support and fix the overall device; A punching limit component is disposed at the top of the support column and is used to limit the punching of textile parts. The punching and limiting assembly includes a roller body, an annular electromagnet, and a set of first electromagnetic guide rods. The roller body is disposed inside the annular electromagnet. Flexible plates are fixedly installed on the telescopic ends of the set of first electromagnetic guide rods. The punching and limiting assembly uses the electromagnetic force inside the annular electromagnet to fix the roller body at the center of the circle. Then, the telescopic ends of the first electromagnetic guide rods extend to drive the flexible plates to clamp the roller body and limit its position.

[0007] Preferably, a Hall sensor is fixedly mounted on the outer surface of the annular electromagnet, a bearing is fixedly mounted on the outer surface of the annular electromagnet, an annular support plate is fixedly mounted on the outer surface of the bearing, and a set of first electromagnetic blocks is fixedly mounted on the bottom of the annular support plate.

[0008] Preferably, the punching limiting component further includes a connecting plate and a fixing frame, wherein the top of the connecting plate is symmetrically provided with a first electromagnetic groove, and both outer surfaces of the connecting plate are provided with a second electromagnetic groove.

[0009] Preferably, a set of second electromagnetic slots has a second electromagnetic block slidably connected to the inner wall of each set of second electromagnetic slots, a U-shaped plate is fixedly installed on the outer surface of each set of second electromagnetic blocks, an annular groove is opened on the inner top of the U-shaped plate, a movable plate is symmetrically slidably connected to the inner wall of the annular groove, and the outer surface of each set of movable plates is fixedly installed with the outer surface of the first electromagnetic guide rod.

[0010] Preferably, a circular groove is provided at the top of the fixing frame near the center, and a first mounting plate is fixedly connected at the bottom of the fixing frame near the center. A first motor is fixedly installed at the bottom of the first mounting plate, and the output end of the first motor slides through the bottom of the first mounting plate and extends upward. A rotating block is fixedly installed at the output end of the first motor.

[0011] Preferably, the outer surface of the rotating block is rotatably connected to the inner wall of the circular groove, the top of the rotating block is fixedly connected to the bottom of the connecting plate, and a second electromagnetic guide rod is fixedly installed on one side of the outer surface of the fixing frame.

[0012] Preferably, the telescopic end of the second electromagnetic guide rod slides through the outer surface of the fixed frame and extends to one side, a push plate is fixedly installed on the telescopic end of the second electromagnetic guide rod, a PLC controller is fixedly installed on the other outer surface of the fixed frame, and the bottom of the fixed frame is fixedly connected to the top of the support column.

[0013] Preferably, the outer surface of the punching and limiting component is provided with a rotating component, the rotation of which is used to average the static non-uniformity of the annular electromagnet. The rotating assembly includes a second mounting plate, on the outer surface of which a second motor is fixedly mounted.

[0014] Preferably, the output end of the second motor slides through the outer surface of the second mounting plate and extends to one side, and a connecting rod is fixedly installed on the output end of the second motor, and a first gear is fixedly installed on the outer surface of the connecting rod.

[0015] Preferably, the outer surface of the first gear is meshed with a second gear, the inner wall of the second gear is fixedly installed with the outer surface of the annular electromagnet, and the top of the second mounting plate is fixedly connected with the bottom of the annular support plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a ring electromagnet and a first electromagnetic guide rod electromagnetic drive structure replace the spring: the ring electromagnet uses electromagnetic force to directly fix the roller body at the circular center reference position, without relying on spring deformation, thus avoiding the instability problem caused by deformation; the telescopic end of the first electromagnetic guide rod drives a flexible plate to clamp the roller, and its clamping force is precisely controlled by adjusting the current, without the force decay caused by mechanical fatigue, and will not fail due to stress relaxation, and can maintain stable clamping for a long time. Even if the roller or limiting component experiences slight wear after long-term use, only the current parameter needs to be finely adjusted to supplement the constraint force, rather than passively relying on spring deformation in traditional technology, thus completely solving the key problem of the compensation capability decreasing with the use time in the prior art.

[0017] 2. In this invention, the rotating component drives the annular electromagnet to rotate stably and slowly. The dynamic magnetic field it generates can average the non-uniformity of its static magnetic field, significantly improving the uniformity of the magnetic field distribution. This makes the magnetic field's effect on the roller body more stable. Furthermore, the dynamic magnetic field acts on the roller body periodically with the rotation, applying a targeted corrective force to ensure precise and controllable roller body posture and avoid posture deviations. Ultimately, this creates a high-quality pre-processing environment with a uniform magnetic field and stable roller posture for subsequent roller body drilling operations, effectively preventing drilling accuracy from being affected by uneven magnetic field or roller posture issues, and providing a reliable guarantee for high-precision drilling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a punching and limiting device for textile parts according to the present invention; Figure 2 This is a schematic diagram of the bottom view of a perforation limiting device for textile parts according to the present invention; Figure 3 This is a schematic diagram of the structure of a portion of the punching and limiting components in a punching and limiting device for textile parts according to the present invention; Figure 4 This is a bottom view schematic diagram of a portion of the punching and limiting components in a punching and limiting device for textile parts according to the present invention. Figure 5 This is a plan view of a portion of the punching and limiting components in a punching and limiting device for textile parts according to the present invention. Figure 6 This is a schematic diagram of another part of the punching and limiting component in the punching and limiting device for textile parts of the present invention; Figure 7 This is a schematic diagram of the rotating component structure in a perforation limiting device for textile parts according to the present invention; Figure 8 This is a plan view of the rotating component in a punching and limiting device for textile parts according to the present invention.

[0019] In the diagram: 1. Support column; 2. Drilling and limiting assembly; 201. Roller body; 202. Ring electromagnet; 203. Hall sensor; 204. Bearing; 205. Ring support plate; 206. First electromagnetic block; 207. Connecting plate; 208. First electromagnetic groove; 209. Second electromagnetic groove; 210. Second electromagnetic block; 211. U-shaped plate; 212. Ring groove; 213. Moving plate; 214. First electromagnetic guide rod; 215. Flexible plate; 216. Fixing frame; 217. Circular groove; 218. First mounting plate; 219. First motor; 220. Rotating block; 221. Second electromagnetic guide rod; 222. Push plate; 223. PLC controller; 3. Rotating assembly; 301. Second mounting plate; 302. Second motor; 303. Connecting rod; 304. First gear; 305. Second gear. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, such as Figure 1 and Figure 6 As shown: A perforation limiting device for textile parts, comprising: A set of support columns 1, which are used to support and fix the overall device; The punching limit component 2 is set on the top of the support column 1 and is used to limit the punching of textile parts. The punching limiting assembly 2 includes a roller body 201, an annular electromagnet 202, and a set of first electromagnetic guide rods 214. The roller body 201 is disposed inside the annular electromagnet 202. Flexible plates 215 are fixedly installed on the telescopic ends of the set of first electromagnetic guide rods 214. The punching limiting assembly 2 uses the electromagnetic force inside the annular electromagnet 202 to fix the roller body 201 at the center of the circle. Then, the telescopic ends of the first electromagnetic guide rods 214 extend to drive the flexible plates 215 to clamp the roller body 201 and limit its position. A Hall sensor 2 is fixedly installed on the outer surface of the annular electromagnet 202. 03. A bearing 204 is fixedly installed on the outer surface of the annular electromagnet 202. An annular support plate 205 is fixedly installed on the outer surface of the bearing 204. A set of first electromagnetic blocks 206 is fixedly installed at the bottom of the annular support plate 205. The drilling and limiting assembly 2 further includes a connecting plate 207 and a fixing frame 216. The top of the connecting plate 207 is symmetrically provided with first electromagnetic grooves 208. The outer surfaces of both sides of the connecting plate 207 are provided with second electromagnetic grooves 209. The inner walls of the set of second electromagnetic grooves 209 are slidably connected with second electromagnetic blocks 210. A U-shaped plate is fixedly installed on the outer surface of the set of second electromagnetic blocks 210. 211. An annular groove 212 is formed on the inner top of the U-shaped plate 211. A movable plate 213 is symmetrically slidably connected to the inner surface of the annular groove 212. The outer surface of a set of movable plates 213 is fixedly installed with the outer surface of the first electromagnetic guide rod 214. A circular groove 217 is formed near the center of the top of the fixing frame 216. A first mounting plate 218 is fixedly connected near the center of the bottom of the fixing frame 216. A first motor 219 is fixedly installed at the bottom of the first mounting plate 218. The output end of the first motor 219 slides through the bottom of the first mounting plate 218 and extends upward. A rotating block 220 is fixedly installed at the output end of the fixed frame 216. The outer surface of the rotating block 220 is rotatably connected to the inner wall of the circular groove 217. The top of the rotating block 220 is fixedly connected to the bottom of the connecting plate 207. A second electromagnetic rod 221 is fixedly installed on one side of the outer surface of the fixed frame 216. The telescopic end of the second electromagnetic rod 221 slides through the outer surface of the fixed frame 216 and extends to one side. A push plate 222 is fixedly installed on the telescopic end of the second electromagnetic rod 221. A PLC controller 223 is fixedly installed on the other side of the outer surface of the fixed frame 216. The bottom of the fixed frame 216 is fixedly connected to the top of the support column 1.

[0022] The overall effect achieved by Example 1 is as follows: First, in the work preparation stage, such as... Figure 1 - Figure 3As shown, the operator places the roller body 201 to be drilled into the inner cavity of the annular electromagnet 202. After activating the annular electromagnet 202, the uniform electromagnetic force generated inside it will actively attract and position one end of the roller body 201 at the center reference position of the electromagnet. This process does not rely on the preload of a traditional spring, which can avoid the subjective error of manual positioning and, through the characteristics of electromagnetic force, eliminate the positioning inaccuracy problem caused by the decrease in preload after long-term use of springs. This establishes a precise reference for subsequent drilling. After entering the drilling operation, the Hall sensor 203 fully... The process plays a dual monitoring role: on the one hand, it collects real-time magnetic force data inside the annular electromagnet 202 to ensure that the adsorption force remains stable within a preset range, thereby avoiding slight displacement of the roller body 201 caused by magnetic fluctuations. Compared with traditional spring positioning without monitoring, it can dynamically ensure positioning stability. On the other hand, it can focus on tracking whether the other end of the roller body 201, which is not surrounded by the electromagnet, shifts due to drilling vibration when the drilling equipment drills a hole at one end of the roller body 201. When the sensor captures the shift signal, it will immediately transmit it to the PLC controller 223 on the fixing frame 216. Figure 4 and Figure 5 As shown, the controller activates the movable plate 213 adapted to the electromagnetically driven annular groove 212. Because the movable plate 213 and the annular groove 212 are electromagnetically driven, mechanical sliding jamming and wear are avoided, achieving smooth sliding along the groove trajectory. Simultaneously, it moves the first electromagnetic guide rod 214 to the offset position. Then, the first electromagnetic guide rod 214 activates, and its telescopic end pushes the flexible plate 215 to adhere to the surface of the roller body 201. The flexible material properties of the flexible plate 215 can avoid scratches and indentations caused by rigid clamping on the surface of the roller body 201. Furthermore, with the controllable force applied by the first electromagnetic guide rod 214, the flexible plate 215 straightens and resets the roller body 201 through appropriate friction. Especially for left and right offsets, the PLC controller 223 can accurately identify the direction and only activate the corresponding side of the first electromagnetic guide rod 214, avoiding secondary deviations caused by overcorrection. To counteract the displacement of the roller body 201 that may be caused by the thrust applied by the drilling equipment during the drilling process, such as... Figure 6 As shown, the PLC controller 223 actively activates the second electromagnetic guide rod 221. Its extension end drives the push plate 222 to form a stable contact with the surface of the roller body 201. The drilling thrust is directly offset by the support of the push plate 222. Compared with the passive method of traditional springs relying on deformation to compensate for the thrust, this method can actively block the displacement caused by the thrust, ensuring that the roller body 201 remains stationary throughout the drilling process, greatly improving the accuracy of the drilling position. Figure 3As shown, after one end of the roller body 201 is punched, the device enters the automated station switching process: First, the second electromagnetic block 210 is activated, allowing it to slide smoothly within the second electromagnetic groove 209, driving the U-shaped plate 211 to the position of the annular electromagnet 202; at this time, the PLC controls the first electromagnetic guide rod 214 to clamp the punched end of the roller body 201, and the flexible plate 215 stabilizes the roller body 201 to prevent it from shifting during station switching. Then, the annular electromagnet 202 is turned off, and the first electromagnetic block 206 is activated to slide within the first electromagnetic groove 208, driving the annular support plate 205, bearing 204, and annular electromagnet 202 to move as a whole to the original U-shaped position. At position 211, precise workstation interchange between the two is achieved without manual intervention. Finally, the first motor 219 at the bottom of the first mounting plate 218 is started. The motor output drives the rotating block 220 to rotate smoothly in the circular groove 217, which simultaneously drives the connecting plate 207 to rotate the un-drilled end of the roller body 201 to the drilling position. The annular electromagnet 202 is started again, thereby realizing fully automated operation and continuous drilling at both ends of the roller. Under the action of the drilling limit component 2, only the current parameter needs to be finely adjusted to supplement the constraint force, rather than passively relying on spring deformation in traditional technology. This successfully solves the key problem of the compensation capability decreasing with the use time in the existing technology.

[0023] Preferably, following the technical solution described in Embodiment 1 above, to address the problem that the roller body 201 has inherent material permeability differences, which can easily lead to periodic vibrations in a fixed magnetic field, a solution is proposed, specifically, as follows: Figure 1 - Figure 2 as well as Figure 7 - Figure 8 As shown: A rotating component 3 is provided on the outer surface of the punching and limiting component 2, and its rotation is used to average the static non-uniformity of the annular electromagnet 202. The rotating assembly 3 includes a second mounting plate 301. A second motor 302 is fixedly mounted on the outer surface of the second mounting plate 301. The output end of the second motor 302 slides through the outer surface of the second mounting plate 301 and extends to one side. A connecting rod 303 is fixedly mounted on the output end of the second motor 302. A first gear 304 is fixedly mounted on the outer surface of the connecting rod 303. A second gear 305 is meshed with the outer surface of the first gear 304. The inner wall of the second gear 305 is fixedly mounted to the outer surface of the annular electromagnet 202. The top of the second mounting plate 301 is fixedly connected to the bottom of the annular support plate 205.

[0024] The effect achieved by the entire implementation 2 is that before drilling the roller body 201, the second motor 302 on the second mounting plate 301 must be started first. After the second motor 302 is started, its output end will drive the connecting rod 303 to rotate synchronously. When the connecting rod 303 rotates, it will drive the first gear 304 to rotate accordingly. Since the first gear 304 and the second gear 305 are in a meshing state, the rotational force of the first gear 304 will be transmitted to the second gear 305, driving the second gear 305 to rotate synchronously. Moreover, the diameter of the first gear 304 is smaller than that of the second gear 305. This gear size difference will form The speed reduction transmission effect allows the second gear 305 to rotate smoothly at a slower speed. The second gear 305 is connected to the annular electromagnet 202, and its slow rotation directly drives the annular electromagnet 202 to rotate synchronously. The dynamic magnetic field generated during its rotation effectively averages out the original static magnetic field inhomogeneity, making the overall operation smoother. Furthermore, the rotating magnetic field can periodically regulate the annular electromagnet 202. When the magnetic field rotates to a specific position, a targeted corrective force can be applied to the force state at that position, improving the accuracy of regulation. In addition, the annular electromagnet 202... During rotation, mechanical isolation is achieved between the bearing 204 and the annular support plate 205. This design ensures that the rotation of the annular electromagnet 202 does not interfere with the annular support plate 205, keeping the annular support plate 205 in a stable state. Under the action of the rotating component 3, the annular electromagnet 202 can be driven to rotate steadily and slowly. The dynamic magnetic field it generates can average the non-uniformity of its own static magnetic field, greatly improving the uniformity of magnetic field distribution, making the magnetic field's effect on the roller body 201 more stable. Moreover, the dynamic magnetic field acts on the roller body 201 periodically with rotation, and can apply targeted corrective force to the roller body 201 at specific positions, ensuring that the roller body 201's posture is precise and controllable, and avoiding posture deviation. Ultimately, this creates a high-quality pre-processing environment with a uniform magnetic field and stable roller posture for subsequent drilling operations on the roller body 201, effectively avoiding the impact of uneven magnetic field or roller posture problems on drilling accuracy, and providing a reliable guarantee for high-precision drilling.

[0025] The working principle of the entire device is as follows: Before drilling the roller body 201, the second motor 302 on the second mounting plate 301 is started. Its output end drives the connecting rod 303 to rotate, which in turn drives the first gear 304 to rotate. Because the first gear 304 meshes with the second gear 305, and the diameter of the first gear 304 is smaller, a reduction transmission is formed, causing the second gear 305 to rotate slowly and smoothly. The second gear 305 is connected to the annular electromagnet 202, driving it to rotate synchronously. The dynamic magnetic field generated by the rotation can average the non-uniformity of the static magnetic field, making the operation smoother. It can also periodically adjust the annular electromagnet 202 to apply targeted corrective force at specific positions. At the same time, the annular electromagnet 202 is isolated from the annular support plate 205 through the bearing 204 to avoid interfering with the stability of the support plate. Then, the operation stage begins. The operator places the roller body 201 to be drilled inside the annular electromagnet 202. After the electromagnet is started, its uniform electromagnetic force attracts one end of the roller to the center reference position, without relying on the spring preload. This avoids manual positioning errors and eliminates them at the source. To prevent positioning inaccuracies caused by the decay of the spring preload, Hall sensor 203 monitors the situation in real time during drilling. This ensures stable electromagnet force, preventing minor roller displacement, and tracks whether the un-adsorbed end of the roller shifts due to drilling vibration. Once the shift signal is transmitted to PLC controller 223, the controller activates the electromagnetically driven moving plate 213, moving the first electromagnetic guide rod 214 to the offset position. The guide rod pushes the flexible plate 215 to conform to the roller, preventing surface damage and straightening / resetting it. It also precisely activates the corresponding side guide rod to prevent secondary deviations. To counteract the drilling thrust, the PLC activates the second electromagnetic guide rod 221, and the push plate 222 abuts against the roller to prevent displacement. After one end of the roller is drilled, the second electromagnetic block 210 moves the U-shaped plate 211 to the position of the electromagnet, the first electromagnetic guide rod 214 clamps the roller, and after the electromagnet is turned off, the first electromagnetic block 206 moves the electromagnet and the U-shaped plate 211 to switch positions. Finally, the first motor 219 drives the rotating block 220 to rotate, turning the un-drilled end of the roller to the drilling position. The electromagnet can then be activated to continue the operation, realizing fully automated continuous drilling.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A punching and limiting device for textile parts, characterized in that, include: A set of support columns (1) are used to support and fix the overall device; The punching limiting component (2) is set on the top of the support column (1) and is used to limit the punching of textile parts. The punching limiting assembly (2) includes a roller body (201), an annular electromagnet (202), and a set of first electromagnetic guide rods (214). The roller body (201) is disposed inside the annular electromagnet (202). Flexible plates (215) are fixedly installed on the telescopic ends of the set of first electromagnetic guide rods (214). The punching limiting assembly (2) uses the electromagnetic force in the annular electromagnet (202) to fix the roller body (201) at the center of the circle. Then, the telescopic ends of the first electromagnetic guide rods (214) are extended to drive the flexible plates (215) to clamp the roller body (201) and limit the position of the roller body (201).

2. The punching and limiting device for textile parts according to claim 1, characterized in that: A Hall sensor (203) is fixedly installed on the outer surface of the annular electromagnet (202), a bearing (204) is fixedly installed on the outer surface of the annular electromagnet (202), an annular support plate (205) is fixedly installed on the outer surface of the bearing (204), and a set of first electromagnetic blocks (206) is fixedly installed at the bottom of the annular support plate (205).

3. The punching and limiting device for textile parts according to claim 1, characterized in that: The punching limiting component (2) further includes a connecting plate (207) and a fixing frame (216). The top of the connecting plate (207) is symmetrically provided with a first electromagnetic groove (208), and the outer surfaces on both sides of the connecting plate (207) are provided with a second electromagnetic groove (209).

4. The punching and limiting device for textile parts according to claim 3, characterized in that: A second electromagnetic block (210) is slidably connected to the inner wall of a set of second electromagnetic grooves (209). A U-shaped plate (211) is fixedly installed on the outer surface of a set of second electromagnetic blocks (210). An annular groove (212) is opened on the inner top of the U-shaped plate (211). A movable plate (213) is symmetrically slidably connected to the inner wall of the annular groove (212). The outer surface of a set of movable plates (213) is fixedly installed with the outer surface of the first electromagnetic guide rod (214).

5. A punching and limiting device for textile parts according to claim 3, characterized in that: A circular groove (217) is provided at the top of the fixed frame (216) near the center. A first mounting plate (218) is fixedly connected at the bottom of the fixed frame (216) near the center. A first motor (219) is fixedly installed at the bottom of the first mounting plate (218). The output end of the first motor (219) slides through the bottom of the first mounting plate (218) and extends upward. A rotating block (220) is fixedly installed at the output end of the first motor (219).

6. The punching and limiting device for textile parts according to claim 5, characterized in that: The outer surface of the rotating block (220) is rotatably connected to the inner wall of the circular groove (217), the top of the rotating block (220) is fixedly connected to the bottom of the connecting plate (207), and a second electromagnetic guide rod (221) is fixedly installed on one side of the outer surface of the fixing frame (216).

7. A punching and limiting device for textile parts according to claim 6, characterized in that: The telescopic end of the second electromagnetic guide rod (221) slides through the outer surface of the fixed frame (216) and extends to one side. A push plate (222) is fixedly installed on the telescopic end of the second electromagnetic guide rod (221). A PLC controller (223) is fixedly installed on the other outer surface of the fixed frame (216). The bottom of the fixed frame (216) is fixedly connected to the top of the support column (1).

8. The punching and limiting device for textile parts according to claim 1, characterized in that: The outer surface of the punching limiting component (2) is provided with a rotating component (3), whose rotational action is used to average the static non-uniformity of the annular electromagnet (202). The rotating assembly (3) includes a second mounting plate (301), on the outer surface of which a second motor (302) is fixedly mounted.

9. A punching and limiting device for textile parts according to claim 8, characterized in that: The output end of the second motor (302) slides through the outer surface of the second mounting plate (301) and extends to one side. A connecting rod (303) is fixedly installed on the output end of the second motor (302), and a first gear (304) is fixedly installed on the outer surface of the connecting rod (303).

10. A punching and limiting device for textile parts according to claim 9, characterized in that: The outer surface of the first gear (304) is meshed with the second gear (305), the inner wall of the second gear (305) is fixedly installed with the outer surface of the annular electromagnet (202), and the top of the second mounting plate (301) is fixedly connected with the bottom of the annular support plate (205).

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