Automatic punching device for fine denier shaped hole spinneret

Abstract

The application relates to a fine denier special-shaped hole spinneret automatic punching device, which belongs to the technical field of spinneret punching and specifically comprises a workbench, a punching driving mechanism arranged at the top end of the workbench and a punching execution mechanism mounted at the execution end of the punching driving mechanism. The device is provided with a follow-up plugging structure composed of a limiting support plate, a limiting support seat, a limiting rod, a compression spring and a blockage cleaning pin below a placing plate. When the punching head finishes the blanking and retreats, the elastic reset force of the compression spring is used to push the blockage cleaning pin to synchronously embed into the just-formed micro-holes to form plugging, so that the metal scraps carried by the cooling liquid in the subsequent blanking operation are effectively blocked from entering the formed hole channel, the adhesion and accumulation of the scraps on the hole wall are reduced, the probability of hole channel blockage is reduced, an independent plugging driving mechanism does not need to be additionally arranged, the overall action is naturally linked with the punching process, the response speed is fast, the operation reliability is high, the forming precision of the micro-holes and the inner wall machining quality can be maintained, and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of spinneret plate punching, and specifically relates to an automatic punching device for fine-denier profiled-hole spinneret plates. Background Art

[0002] Existing automatic punching devices for fine-denier profiled-hole spinneret plates are mainly composed of a frame main body, a stamping drive mechanism, a stamping execution mechanism, a workpiece clamping fixture and a positioning feed mechanism. The frame serves as the overall load-bearing base, and the stamping drive mechanism is arranged on the upper part of the frame, which can drive the punching execution assembly to move to a designated punching position. The punching execution assembly is connected to the drive end and is equipped with a punch member corresponding to the profiled hole shape. The workpiece clamping fixture is arranged on the worktable surface below the punch, used for clamping and fixing the spinneret plate metal blank. The positioning feed mechanism can drive the fixture or the punch to move according to a preset hole position path, so as to realize continuous automatic punching operation at multiple hole positions. Its punching principle is to use the downward punching shear force of the punch to make the metal sheet undergo shear fracture under the cooperative action of the punch and the lower support structure, so as to form the required profiled micro-pore structure. The overall automation degree is high, and the punching processing procedure of the spinneret plate can be completed continuously.

[0003] Such existing automatic punching devices for fine-denier profiled-hole spinneret plates have many deficiencies in actual processing. The cooling liquid flushing mechanism matched with the punching operation easily flushes the fine metal debris generated by blanking into the already formed micro-pores. Due to the narrow aperture and special configuration of the fine-denier profiled holes, the debris easily adheres to the inner wall of the pore channel and is difficult to be completely cleaned, which not only easily causes pore channel blockage, but also affects the forming accuracy of the micro-pores, directly affecting the subsequent spinning use effect. At the same time, stamping burrs are easily formed on the outlet end face of the micro-pores after blanking processing, which cannot be processed synchronously on-line by the existing devices, and need to be transferred to a separate process for deburring operation. Secondary clamping easily causes positioning deviation, which not only prolongs the overall processing flow and reduces production efficiency, but also easily causes secondary damage to the formed pore wall, making it difficult to stably guarantee the processing accuracy and finished product quality of the spinneret plate. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic punching device for fine-denier profiled-hole spinneret plates, so as to solve the problems proposed in the above background art that when the existing automatic punching devices for profiled-hole spinneret plates are in actual processing, the fine metal debris generated by blanking will be flushed into the formed micro-pores through the matched cooling liquid flushing. Due to the narrow and special hole shape, the debris adheres to the inner wall and is difficult to clean, which easily causes pore channel blockage and affects the forming accuracy. Meanwhile, the stamping burrs at the outlets of the micro-pores cannot be processed on-line, and a separate process transfer operation is required. Secondary clamping easily causes positioning deviation, which not only lengthens the process and reduces efficiency, but also easily damages the pore wall, making it difficult to stably guarantee the processing accuracy and finished product quality of the spinneret plate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated punching device for a fine denier spinneret with irregularly shaped holes, comprising a worktable, a punching drive mechanism disposed at the top of the worktable, and a punching actuator mounted on the execution end of the punching drive mechanism. A punching head is clamped at the execution end of the punching actuator. A mounting plate is fixed to the outer side of the top of the worktable. A bracket is vertically fixed to the edge of the mounting plate. A placement plate is fixed to the top of the bracket. A rectangular groove is formed in the middle of the placement plate. A limiting support plate is disposed below the rectangular groove. The bottom of the limiting support plate... The end is equipped with a lifting component. The top of the limiting support plate is fixedly arranged with several anti-clogging pins in an array corresponding to all the holes to be processed on the spinneret blank. The bottom end of each anti-clogging pin is equipped with an anti-blocking component. A clamping component is provided at the corner of the placement plate. The spinneret blank is clamped and fixed on the placement plate by the clamping component and kept stationary. The punching drive mechanism drives the punching head to move horizontally hole by hole to directly above each hole to be processed for punching. The array of fixed anti-clogging pins rises and falls with the limiting support plate as a whole, but does not move horizontally with the punching head.

[0006] Furthermore, the clamping assembly includes a positioning cylinder, a clamping block, and a limiting slide groove. The positioning cylinder is fixedly installed on the outer top of the placement plate. One side of the clamping block is fixedly connected to the output end of the positioning cylinder. The limiting slide groove is opened at the position of the placement plate corresponding to the clamping block. The bottom end of the clamping block is slidably locked in the limiting slide groove.

[0007] Furthermore, the lifting assembly includes a fixed frame, a support frame, and a telescopic cylinder. The fixed frame is located below the bottom end of the limiting support plate. The top end of the support frame is fixedly connected to the bottom edge of the fixed frame. The telescopic cylinder is vertically fixed in the middle of the bottom end of the fixed frame. The bottom end of the support frame is fixedly installed on the outer side of the top end of the mounting plate.

[0008] Furthermore, the output end of the telescopic cylinder is fixedly connected to the bottom end of the limiting support plate, and a fixed seat is fixedly installed at each corner of the limiting support plate. A guide rod is vertically and slidably installed through the fixed frame at the position corresponding to the fixed seat. The top end of the guide rod is fixedly connected to the bottom end of the fixed seat, and a limiting block is fixedly installed at the bottom end of the guide rod.

[0009] Furthermore, the blocking assembly includes a limiting support base and two limiting rods. The limiting support base is located at the bottom end of the unblocking needle. The two limiting rods are symmetrically fixed at the bottom ends of both sides of the limiting support base. Each limiting rod is slidably mounted on the limiting support plate, and the bottom end of the limiting rod extends below the limiting support plate. A positioning block is fixed at the bottom end of each limiting rod.

[0010] Furthermore, a limiting hole is provided through the middle of the limiting support base, and a rotating column is rotatably installed in the limiting hole. An auxiliary block is fixedly installed at both the bottom and top of the rotating column, and a clamping head is rotatably clamped on the outside of the auxiliary block at the top of the rotating column.

[0011] Furthermore, each of the limiting rods is fitted with a compression spring, and the two ends of the compression spring are respectively fixedly installed at the bottom end of the limiting support seat and the top end of the limiting support plate.

[0012] Furthermore, an auxiliary seat is fixedly installed at the bottom end of the limiting support base, and a micro drive motor is fixedly installed at the bottom end of the auxiliary seat. The output end of the micro drive motor is fixedly connected to the middle of the auxiliary block at the bottom end of the rotating column.

[0013] Furthermore, a clamping hole is provided inside the top of the clamping head, and a positioning bolt is threaded through the bottom of the clamping head and the inside of the clamping hole. The bottom of the unblocking stop pin is inserted into the clamping hole, and a positioning hole is provided on the side of the unblocking stop pin near the positioning bolt. One end of the positioning bolt abuts against the inside of the positioning hole.

[0014] Furthermore, a through-hole grinding block is sleeved on the top of the clamping head, and several connecting rods are fixedly installed on the bottom of the through-hole grinding block. A connecting seat is fixedly installed on the bottom of each connecting rod, and the bottom of the connecting seat is fixedly installed on the top of the auxiliary block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This device features a follow-up sealing structure below the placement plate, consisting of a limiting support plate, a limiting support seat, a limiting rod, a compression spring, and a clearing stop pin. When the punching head completes punching and retracts, the elastic restoring force of the compression spring pushes the clearing stop pin to simultaneously embed into the newly formed micro-hole, forming a seal. This effectively prevents metal debris carried by the coolant from entering the formed channel during subsequent punching operations, reducing the adhesion and accumulation of debris on the hole wall and lowering the probability of channel blockage. At the same time, there is no need for an additional independent sealing drive mechanism. The overall action is naturally linked with the punching process, with fast response speed and strong operational reliability, which helps maintain the forming accuracy of the micro-hole and the processing quality of the inner wall.

[0016] 2. This device features an online grinding structure at the root of the unblocking stop pin, consisting of a micro drive motor, rotating column, auxiliary block, connecting rod, connecting seat, and through-hole grinding block. This allows for simultaneous micro-grinding and trimming of the stamping burrs on the micro-hole exit face at the same workstation after the punching and sealing action is completed. This eliminates the need to transfer the workpiece to a separate deburring process, reducing positioning deviations caused by secondary clamping, shortening the overall processing flow, and improving production efficiency. During grinding, the unblocking stop pin remains embedded in the micro-hole, providing a central guide and limit for the through-hole grinding block. This reduces accidental damage to the hole wall caused by the through-hole grinding block's sway during grinding, ensuring stable micro-hole forming accuracy and hole opening quality. Furthermore, the unblocking stop pin is detachable via positioning bolts and clamping holes in the clamping head, facilitating replacement and maintenance after component wear. It also adapts to the processing needs of different irregular hole shapes, contributing to the stable and continuous processing performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the mounting plate and bracket of the present invention; Figure 3 This is a front view of the limiting support plate and fixing frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the fixing frame and telescopic cylinder of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a three-dimensional structural diagram of the unblocking stop pin and the limiting support seat of the present invention; Figure 7 This is a three-dimensional structural diagram of the limiting support base and the rotating column of the present invention. Figure 8 This is a three-dimensional structural diagram of the unblocking stop pin and rotating column of the present invention. Figure 9 This is a schematic diagram demonstrating the punching head of the present invention punching holes at a designated position on the spinneret. Figure 10 This is a schematic diagram demonstrating how the unblocking needle pops out to block the nozzle of the spinneret plate in this invention.

[0018] In the attached diagram, the components represented by each number are as follows: 1. Worktable; 2. Mounting plate; 3. Bracket; 4. Placement plate; 5. Stamping drive mechanism; 6. Stamping actuator; 7. Punching head; 8. Rectangular groove; 9. Positioning cylinder; 10. Clamping block; 11. Limiting slide; 12. Limiting support plate; 13. Fixing frame; 14. Support frame; 15. Telescopic cylinder; 16. Guide rod; 17. Limiting stop; 18. Fixing seat; 19. Clearing pin; 20. Limiting support seat; 21. Limiting hole; 22. Rotating column; 23. Auxiliary block; 24. Clamping head; 25. Auxiliary seat; 26. Miniature drive motor; 27. Limiting rod; 28. Positioning stop; 29. ​​Compression spring; 30. Through hole grinding block; 31. Connecting rod; 32. Connecting seat; 33. Clamping hole; 34. Positioning hole; 35. Positioning bolt. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-7 and Figure 9 An automated punching device for fine-denier spinnerets includes a worktable 1, a punching drive mechanism 5 mounted on the top of the worktable 1, and a punching actuator 6 mounted on the actuating end of the punching drive mechanism 5. A punching head 7 is clamped at the actuating end of the punching actuator 6. A mounting plate 2 is fixed to the outer side of the top of the worktable 1. A bracket 3 is vertically fixed to the edge of the mounting plate 2. A placement plate 4 is fixed to the top of the bracket 3. A rectangular groove 8 is formed in the middle of the placement plate 4. A limit support plate 12 is provided below the rectangular groove 8. A lifting assembly is provided at the bottom of the limit support plate 12. The top of the limiting support plate 12 is fixedly arranged with several anti-blocking pins 19 in an array corresponding to all the holes to be processed on the spinneret blank. Each anti-blocking pin 19 is provided with an anti-blocking component at its bottom end. A clamping component is provided at the corner of the placement plate 4. The spinneret blank is clamped and fixed on the placement plate 4 by the clamping component and kept stationary. The punching drive mechanism 5 drives the punching head 7 to move horizontally hole by hole to the top of each hole to be processed for punching. The anti-blocking pins 19 arranged in the array rise and fall with the limiting support plate 12 as a whole, but do not move horizontally with the punching head 7.

[0021] The clamping assembly includes a positioning cylinder 9, a clamping block 10, and a limiting slide groove 11. The positioning cylinder 9 is fixedly installed on the outer top of the placement plate 4. One side of the clamping block 10 is fixedly connected to the output end of the positioning cylinder 9. The limiting slide groove 11 is opened at the position of the placement plate 4 corresponding to the clamping block 10. The bottom end of the clamping block 10 is slidably locked in the limiting slide groove 11.

[0022] The lifting assembly includes a fixed frame 13, a support frame 14, and a telescopic cylinder 15. The fixed frame 13 is located below the bottom end of the limiting support plate 12. The top end of the support frame 14 is fixedly connected to the bottom edge of the fixed frame 13. The telescopic cylinder 15 is vertically fixed in the middle of the bottom end of the fixed frame 13. The bottom end of the support frame 14 is fixedly installed on the outer side of the top end of the mounting plate 2.

[0023] The output end of the telescopic cylinder 15 is fixedly connected to the bottom end of the limiting support plate 12. A fixed seat 18 is fixedly installed at each corner of the limiting support plate 12. A guide rod 16 is vertically and slidably installed on the fixed frame 13 corresponding to the position of the fixed seat 18. The top end of the guide rod 16 is fixedly connected to the bottom end of the fixed seat 18. A limit stop 17 is fixedly installed at the bottom end of the guide rod 16.

[0024] The blocking assembly includes a limiting support base 20 and two limiting rods 27. The limiting support base 20 is located at the bottom end of the unblocking pin 19. The two limiting rods 27 are symmetrically fixed at the bottom ends of both sides of the limiting support base 20. Each limiting rod 27 is slidably mounted on the limiting support plate 12, and the bottom end of the limiting rod 27 extends below the limiting support plate 12. A positioning block 28 is fixed at the bottom end of each limiting rod 27.

[0025] A limiting hole 21 is provided through the middle of the limiting support base 20. A rotating column 22 is rotatably installed in the limiting hole 21. An auxiliary block 23 is fixedly installed at the bottom and top of the rotating column 22. A clamping head 24 is rotatably clamped on the outside of the auxiliary block 23 at the top of the rotating column 22.

[0026] Each limiting rod 27 is fitted with a compression spring 29, and the two ends of the compression spring 29 are respectively fixedly installed at the bottom end of the limiting support seat 20 and the top end of the limiting support plate 12.

[0027] In this embodiment, the fine denier spinneret blank to be processed is placed on the top surface of the placement plate 4. The clamping assembly at the corner of the placement plate 4 is activated, the output end of the positioning cylinder 9 extends, and pushes the clamping block 10 to slide along the limiting slide groove 11 towards the blank. Through the synchronous action of multiple sets of clamping blocks 10, the spinneret blank is positioned and clamped from the side, ensuring that the blank remains stable in position during the subsequent punching process and reducing the punching position deviation and hole shape deviation.

[0028] After clamping, the lifting assembly is activated, and the output end of the telescopic cylinder 15 extends upward, pushing the limit support plate 12 to move upward. The fixed frame 13 is fixed on the mounting plate 2 through the support frame 14, providing a stable bearing base for the telescopic cylinder 15. During the lifting process, the fixed seat 18 moves synchronously with the limit support plate 12, driving the guide rod 16 to slide vertically along the corresponding hole of the fixed frame 13, providing precise guidance for the lifting of the limit support plate 12 and avoiding horizontal sway. The limit stop 17 at the bottom of the guide rod 16 can limit the upward extreme position to prevent the guide rod 16 from coming out of the fixed frame 13. As the limiting support plate 12 continues to rise, the tip of the unblocking stop pin 19 gradually contacts the lower surface of the spinneret blank. After the piston rod of the telescopic cylinder 15 continues to extend upward to the preset working position, the unblocking stop pin 19 is subjected to the reverse blocking force of the blank, which drives the limiting support seat 20 and the limiting rod 27 to slide downward relative to the limiting support plate 12. The compression spring 29 sleeved outside the limiting rod 27 is compressed and stores elastic potential energy. At this time, the tip of the unblocking stop pin 19 presses against the lower surface of the spinneret blank with stable pressure, completing the pre-alignment preparation before punching.

[0029] Subsequently, the stamping drive mechanism 5 drives the stamping actuator 6 and the lower follower sealing component to move synchronously to directly above the hole to be processed. The stamping actuator 6 outputs a punching force, driving the punching head 7 to move vertically downward, applying a punching load to the spinneret blank, causing the blank to be sheared and broken under the rigid support of the cutting edge of the punching head 7 and the lower die, forming irregular micro holes.

[0030] When the punch head 7 completes the punching action and begins to retract upwards, the newly formed micro-hole is no longer subjected to the downward pressure of the punch head 7. The compression spring 29, which is in a compressed state, releases its elastic potential energy, pushing the limit support 20 upwards along the guide direction of the limit rod 27. This, in turn, causes the unblocking stop pin 19 to spring upwards, so that the upper part of the unblocking stop pin 19 embeds into the newly punched micro-hole, sealing the micro-hole. Through this punching and blocking linkage, in the subsequent punching operations of adjacent holes, it can effectively prevent fine metal debris carried by the coolant from entering the already formed micro-hole, reducing the adhesion and accumulation of debris on the inner wall of the channel, reducing the probability of channel blockage, and also reducing the workload of subsequent micro-hole cleaning, which helps to maintain the forming accuracy and inner wall quality of the micro-hole. The positioning block 28 at the bottom of the limit rod 27 can limit the upward stroke of the limit support 20, preventing the unblocking stop pin 19 from excessively protruding and scratching the hole wall or causing deformation of the hole opening.

[0031] Simultaneously, before the punching operation, the top end face of the unblocking stop pin 19 abuts against the lower surface of the spinneret blank under the pre-pressure of the compression spring 29, and is in a coaxial alignment with the punching end of the upper punching head 7. After the punching head 7 descends and contacts the blank, it continuously applies punching force. The core material to be separated at the corresponding hole position on the blank moves down synchronously with the punching head 7 and transfers the load to the unblocking stop pin 19, causing the unblocking stop pin 19 and the limiting support seat 20 to slide down along the limiting rod 27 together, and the compression spring 29 is further compressed and stores force. When the punch head 7 descends to the set downward pressure limit position, the limiting support seat 20 simultaneously descends to the limit stroke limited by the positioning block 28, and the unblocking pin 19 stops moving downward. At this time, under the continuous opposing extrusion action of the end face of the punch head 7 and the end face of the unblocking pin 19, the core to be separated is completely separated from the blank body by the cutting edge shearing effect of the punch head 7. The thin and small core is bent and deformed by the extrusion force, and is offset and dislodged from the punching gap between the unblocking pin 19 and the hole wall, making it less likely to jam and accumulate. After punching is completed, the punch head 7 retracts upward, and the compression spring 29 releases elastic potential energy to push the unblocking pin 19 upward and embed it into the newly formed micro hole to form a seal.

[0032] Example 2: Please refer to Figures 6-10 This embodiment further describes Example 1. An auxiliary seat 25 is fixedly installed at the bottom end of the limiting support seat 20. A micro drive motor 26 is fixedly installed at the bottom end of the auxiliary seat 25. The output end of the micro drive motor 26 is fixedly connected to the middle part of the auxiliary block 23 at the bottom end of the rotating column 22.

[0033] The top of the clamping head 24 has a clamping hole 33 inside. A positioning bolt 35 is threaded through the bottom of the clamping head 24 and the inside of the clamping hole 33. The bottom of the cleaning and blocking pin 19 is inserted into the clamping hole 33. A positioning hole 34 is opened on the side of the cleaning and blocking pin 19 near the positioning bolt 35. One end of the positioning bolt 35 abuts against the inside of the positioning hole 34.

[0034] The top of the clamping head 24 is fitted with a through-hole grinding block 30. Several connecting rods 31 are fixedly installed at the bottom of the through-hole grinding block 30. A connecting seat 32 is fixedly installed at the bottom of each connecting rod 31. The bottom of the connecting seat 32 is fixedly installed on the top of the auxiliary block 23.

[0035] In this embodiment, when the compression spring 29 releases its elastic potential energy to push the unblocking pin 19 upward and embed it into the newly formed microhole, the inner chamfered grinding surface of the through hole grinding block 30, which is sleeved on the outer side of the top of the clamping head 24, simultaneously abuts against the edge of the outlet opening of the microhole and contacts the burr area formed by punching.

[0036] After the unblocking pin 19 is in place, the micro drive motor 26, which is fixedly installed at the bottom of the auxiliary seat 25, is started. The output end of the micro drive motor 26 outputs torque, which drives the rotating column 22 to rotate smoothly in the limiting hole 21 in the middle of the limiting support seat 20 through the auxiliary block 23 at the bottom of the rotating column 22. The auxiliary block 23 at the top of the rotating column 22 rotates synchronously with the rotating column 22. The torque is transmitted through the connecting seat 32 and connecting rod 31 fixed at its top, which drives the through hole grinding block 30 to rotate around the axis of the unblocking pin 19, and perform micro-grinding and repair on the stamping burrs on the micro-hole outlet end face.

[0037] This method of instant online grinding after punching allows for the simultaneous removal of burrs at the micro-hole exit at the same workstation, eliminating the need to transfer the workpiece to a separate deburring process. This avoids positioning deviations caused by secondary clamping to some extent, helps shorten the overall processing flow, and improves production efficiency. Meanwhile, during the grinding process, the unblocking stop pin 19 remains embedded in the micro-hole, which can provide a central guide limit for the rotation of the through-hole grinding block 30. This reduces accidental damage to the hole wall caused by the swaying of the through-hole grinding block 30 during grinding, and helps to stably ensure the forming accuracy and hole quality of the micro-hole.

[0038] Following the aforementioned punching, sealing, and deburring process, after processing all holes on the spinneret blank in sequence, the output end of the telescopic cylinder 15 of the lifting assembly retracts downward, driving the limit support plate 12 to move downward as a whole. This, in turn, drives all the unblocking pins 19 to move downward synchronously through the limit rod 27, limit support seat 20, and clamping head 24, allowing the unblocking pins 19 to be completely extracted from their corresponding micro-holes and detached from the spinneret blank. Subsequently, the clamping assembly on the placement plate 4 activates, the output end of the positioning cylinder 9 retracts, driving the clamping block 10 to slide away from the blank along the limit slide groove 11, releasing the side clamping fixation of the spinneret blank. The processed spinneret workpiece can then be removed from the placement plate 4.

[0039] During long-term use of the device, when the unblocking stop pin 19 becomes worn or deformed, or when it is necessary to replace the corresponding stop pin to adapt to different irregular hole shapes, the positioning bolt 35 can be loosened from the side wall of the clamping head 24, so that the inner end of the positioning bolt 35 can be removed from the positioning hole 34 on the side of the unblocking stop pin 19, thus releasing the axial lock on the unblocking stop pin 19. The unblocking stop pin 19 can then be pulled upward from the clamping hole 33 at the top of the clamping head 24 for replacement, grinding, or cleaning. After replacement, the bottom end of the new unblocking stop pin 19 is reinserted into the clamping hole 33, adjusted to the appropriate depth, and the positioning bolt 35 is tightened so that the end of the positioning bolt 35 is re-inserted into the positioning hole 34 to complete the fastening. The assembly and disassembly operations are convenient, which helps to maintain the continuous processing performance of the device and adapt to different processing needs.

[0040] The auxiliary block 23 at the top of the rotating column 22 and the clamping head 24 adopt a conventional rotating engagement installation structure. This structure can realize the axial limiting and circumferential rotational engagement of the two, which is a common rotating connection structure in this field. Therefore, its specific structure will not be described in detail. When the micro drive motor 26 drives the auxiliary block 23 to rotate through the rotating column 22, the auxiliary block 23 can rotate freely in the circumferential direction relative to the clamping head 24. Then, through the connecting seat 32 and the connecting rod 31, it drives the through hole grinding block 30 to rotate around the axis of the unclogging stop pin 19 to complete the grinding operation of the hole burr. During this process, the clamping head 24 and the unclogging stop pin 19 clamped and fixed inside it remain stationary to avoid the unclogging stop pin 19 rotating inside the micro hole and rubbing against the hole wall. This is beneficial to maintaining the forming accuracy and surface quality of the inner wall of the micro hole.

[0041] For conventional stamping drive and displacement feeding components such as stamping drive mechanism 5 and stamping actuator 6, their specific structures, drive methods and control logic are all existing conventional technologies in the field. Those skilled in the art can make conventional selections and settings according to actual processing needs. Therefore, the specific structure and working principle will not be described in detail in this invention.

Claims

1. An automated punching device for a fine denier spinneret, comprising a worktable (1), a punching drive mechanism (5) disposed at the top of the worktable (1), and a punching actuator (6) mounted on the execution end of the punching drive mechanism (5), characterized in that: The punching actuator (6) is fitted with a punch head (7) at its execution end. The top of the worktable (1) is fixed with a mounting plate (2). A bracket (3) is vertically fixed at the edge of the mounting plate (2). A placement plate (4) is fixed at the top of the bracket (3). A rectangular groove (8) is opened in the middle of the placement plate (4). A limit support plate (12) is provided below the rectangular groove (8). A lifting component is provided at the bottom of the limit support plate (12). Several cleaning and blocking pins (19) are fixedly arranged in an array corresponding to all the holes to be processed in the spinneret blank at the top of the limit support plate (12). A blocking component is provided at the bottom of each cleaning and blocking pin (19). A clamping component is provided at the corner of the placement plate (4). The spinneret blank is clamped and fixed on the placement plate (4) by the clamping assembly and kept stationary. The punching drive mechanism (5) drives the punch head (7) to move horizontally to the top of each hole to be processed for punching. The array of fixed cleaning pins (19) rises and falls as a whole with the limiting support plate (12) and does not feed horizontally with the punch head (7).

2. The automated punching device for a fine denier irregular-shaped spinneret according to claim 1, characterized in that: The clamping assembly includes a positioning cylinder (9), a clamping block (10), and a limiting slide groove (11). The positioning cylinder (9) is fixedly installed on the outer side of the top of the placement plate (4). One side of the clamping block (10) is fixedly connected to the output end of the positioning cylinder (9). The limiting slide groove (11) is opened on the placement plate (4) at the position corresponding to the clamping block (10). The bottom end of the clamping block (10) is slidably locked in the limiting slide groove (11).

3. The automated punching device for a fine denier irregular-shaped spinneret according to claim 1, characterized in that: The lifting assembly includes a fixed frame (13), a support frame (14), and a telescopic cylinder (15). The fixed frame (13) is located below the bottom end of the limiting support plate (12). The top end of the support frame (14) is fixedly connected to the bottom edge of the fixed frame (13). The telescopic cylinder (15) is vertically fixed in the middle of the bottom end of the fixed frame (13). The bottom end of the support frame (14) is fixedly installed on the outer side of the top end of the mounting plate (2).

4. The automated punching device for a fine denier irregular-shaped spinneret according to claim 3, characterized in that: The output end of the telescopic cylinder (15) is fixedly connected to the bottom end of the limiting support plate (12). A fixed seat (18) is fixedly installed at each corner of the limiting support plate (12). A guide rod (16) is vertically slidably installed on the fixed frame (13) corresponding to the position of the fixed seat (18). The top end of the guide rod (16) is fixedly connected to the bottom end of the fixed seat (18). A limit stop (17) is fixedly installed at the bottom end of the guide rod (16).

5. The automated punching device for a fine denier spinneret with irregularly shaped holes according to claim 1, characterized in that: The blocking assembly includes a limiting support base (20) and two limiting rods (27). The limiting support base (20) is located at the bottom end of the clearing pin (19). The two limiting rods (27) are symmetrically fixed at the bottom ends of the limiting support base (20) on both sides. Each limiting rod (27) is slidably mounted on the limiting support plate (12), and the bottom end of the limiting rod (27) extends below the limiting support plate (12). A positioning block (28) is fixed at the bottom end of each limiting rod (27).

6. The automated punching device for a fine denier irregular-shaped spinneret according to claim 5, characterized in that: The limiting support base (20) has a limiting hole (21) through the middle. A rotating column (22) is rotatably installed in the limiting hole (21). An auxiliary block (23) is fixedly installed at the bottom and top of the rotating column (22). A clamping head (24) is rotatably clamped on the outside of the auxiliary block (23) at the top of the rotating column (22).

7. The automated punching device for a fine denier spinneret with irregularly shaped holes according to claim 6, characterized in that: Each of the limiting rods (27) is fitted with a compression spring (29), and the two ends of the compression spring (29) are respectively fixedly installed at the bottom end of the limiting support seat (20) and the top end of the limiting support plate (12).

8. An automated punching device for a fine denier spinneret with irregularly shaped holes according to claim 6, characterized in that: An auxiliary seat (25) is fixedly installed at the bottom of the limiting support seat (20), and a micro drive motor (26) is fixedly installed at the bottom of the auxiliary seat (25). The output end of the micro drive motor (26) is fixedly connected to the middle of the auxiliary block (23) at the bottom of the rotating column (22).

9. An automated punching device for a fine denier spinneret with irregularly shaped holes according to claim 6, characterized in that: The clamping head (24) has a clamping hole (33) inside its top end. A positioning bolt (35) is threaded through the bottom end of the clamping head (24) and the inside of the clamping hole (33). The bottom end of the unblocking stop pin (19) is inserted into the clamping hole (33). A positioning hole (34) is opened on the side of the unblocking stop pin (19) near the positioning bolt (35). One end of the positioning bolt (35) abuts against the inside of the positioning hole (34).

10. An automated punching device for a fine denier spinneret with irregularly shaped holes according to claim 6, characterized in that: The top of the clamping head (24) is fitted with a through hole grinding block (30), and a number of connecting rods (31) are fixedly installed at the bottom of the through hole grinding block (30). Each connecting rod (31) is fixedly installed with a connecting seat (32) at the bottom. The bottom of the connecting seat (32) is fixedly installed on the top of the auxiliary block (23).

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