A nib processing positioning device

Abstract

The utility model relates to a pen point processing technical field especially, a pen point processing positioning device, solved the problem that the pen point rudiment part is prone to up and down jumping or overall shaking in the processing process because of lacking effective limiting or compact structure in the prior art. A pen point processing positioning device, including the positioning plate and the positioning groove that sets up in the positioning plate top, the inner bottom of positioning groove sets up and supports the groove, the bottom center of support groove sets up and has the internal groove, the inside of positioning groove is provided with the support plate, the side of support plate sets up and has the feed slot, the bottom fixed connection of support plate has the bottom plate, the bottom fixed connection of bottom plate has the lifting plate, the bottom of lifting plate is connected with the inner bottom of internal groove through the elastic part. The utility model is compacted and positioned to the pen point top through the V-shaped clamp, cooperates with support plate and elastic part, effectively prevents the jumping and shaking in the processing process, improves the positioning stability and processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of pen tip processing technology, and in particular to a pen tip processing positioning device. Background Technology

[0002] As the core component of a writing instrument, the precision of the pen nib directly determines the smoothness of writing, the uniformity of ink flow, and the aesthetics of the handwriting. In the manufacturing process of pen nibs, especially for metal nibs that require slotting to form a branch (such as fountain pen nibs), the precision machining of the center seam is a crucial step. It demands extremely high positioning accuracy and stability to ensure that the cutting or stamping tools can accurately act at the predetermined position, forming a symmetrical and uniform gap. Therefore, efficient, precise, and stable pen nib machining and positioning devices play an indispensable role in the modern pen manufacturing industry.

[0003] Chinese utility model patent with publication number CN117506495A discloses a positioning device for processing the center seam of a pen tip. It drives the lifting of the support plate through a support plate lifting assembly, and in conjunction with the linkage assembly, the clamping plate moves with the support plate to achieve clamping, centering and releasing of the pen tip prototype, thus realizing automated clamping to a certain extent.

[0004] However, the device has a significant structural design flaw: its clamping mechanism only applies clamping force to the pen tip prototype from the side, lacking an effective limiting or pressing structure at the top of the pen tip (i.e., the side opposite the support plate). This causes the pen tip prototype to easily experience slight vertical jumps or overall wobbling during processing when the cutting tool applies cutting force, disrupting the original alignment. This not only severely affects the processing accuracy and consistency of the center seam, leading to defects such as burrs and skewing, reducing the product yield, but also poses a safety hazard of accidental workpiece ejection.

[0005] Therefore, given the shortcomings of existing technologies where the lack of a top limit switch leads to unstable workpiece clamping, easy shaking, and compromises in machining accuracy and safety, we urgently need a pen tip machining positioning device to solve this problem. This new device should significantly improve the positioning stability and anti-interference capability of the pen tip prototype during machining, ensuring high-precision and high-efficiency seam machining, while better meeting the demands of modern pen manufacturing for high-quality and high-reliability production, thus providing strong support for the industry's sustainable development. Utility Model Content

[0006] The purpose of this invention is to provide a pen tip machining positioning device that solves the problem in the prior art where the clamping mechanism only applies clamping force to the pen tip prototype from the side, while lacking an effective limiting or pressing structure at the top of the pen tip. This leads to the problem that during machining, when the cutting tool applies cutting force, the pen tip prototype is prone to slight vertical jumping or overall shaking.

[0007] To achieve the above objectives, this utility model provides a pen tip processing positioning device, including a positioning plate and a positioning groove formed on the top of the positioning plate. A support groove is formed at the bottom of the positioning groove, and an internal groove is formed at the center of the bottom of the support groove.

[0008] The positioning groove is provided with a support plate inside. A tool inlet groove is provided on one side of the support plate. A bottom plate that matches the support groove is fixedly connected to the bottom of the support plate. A lifting plate that matches the inner groove is fixedly connected to the bottom of the bottom plate. The bottom of the lifting plate is connected to the inner bottom of the inner groove through an elastic element.

[0009] The top of the positioning plate is provided with a movable plate. Both ends of the movable plate are connected to the top of the positioning plate through a sliding structure. One side of the movable plate is connected to the end of the positioning plate through a horizontal pushing structure. The bottom of the movable plate is provided with a V-shaped pressure plate. The top of the V-shaped pressure plate is connected to the movable plate through a vertical adjustment structure.

[0010] The elastic element includes a compression spring, one end of which is connected to the bottom of the bottom plate and the other end is connected to the inner bottom of the internal groove.

[0011] The sliding structure includes a guide rod and a sliding sleeve. Both ends of the guide rod are connected to the top of the positioning plate through a fixed plate. The sliding sleeve slides with the guide rod, and one side of the sliding sleeve is connected to the end of the moving plate.

[0012] The support groove has several round holes on both sides of its inner bottom, and the bottom plate has round rods that are adapted to the round holes fixedly connected to both sides of its bottom.

[0013] The vertical adjustment structure includes an adjusting screw and a sliding rod. A sliding groove is provided on one side of the moving plate. One end of the adjusting screw is rotatably connected to the top of the V-shaped pressure plate, and the other end is threaded through the moving plate. One end of the sliding rod is connected to the top of the V-shaped pressure plate, and its side wall is slidably engaged with the inside of the sliding groove.

[0014] The horizontal pushing structure includes a pushing cylinder connected to the top of the positioning plate via a mounting base, and the output end of the pushing cylinder is connected to one side of the moving plate.

[0015] This utility model discloses a pen tip machining positioning device. By setting a movable plate on the top of the positioning plate and connecting a V-shaped pressure plate at its bottom, combined with a vertical adjustment structure, it achieves active clamping of the top of the pen tip prototype. This effectively solves the technical problem in the prior art where the lack of a limiting structure at the top causes the workpiece to easily jump up and down or shake during machining, significantly improving the positioning stability of the workpiece under cutting force. The V-shaped structure design of the V-shaped pressure plate can adapt to pen tip top contours of different widths, providing good contact and clamping effect, ensuring the reliability and centering of clamping. The movable plate is connected to the positioning plate through a sliding structure. The top connection, driven by a horizontal pushing structure, allows the V-shaped pressure plate to move flexibly to the processing or avoidance position, making operation convenient and not affecting the loading and unloading of workpieces or the feed of cutting tools. The support plate is connected to the elastic element in the internal groove through the bottom plate and the lifting plate. When the V-shaped pressure plate presses the workpiece, the elastic element is compressed and stores energy. After processing, the energy is released, pushing the support plate to move slightly upward, gently lifting the workpiece. This not only helps protect the workpiece and the support surface, but also makes it easier for operators to quickly and effortlessly remove the processed pen tip, improving production efficiency. The feed groove on the support plate provides an unobstructed processing channel for the cutting tool. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the movable plate and the V-shaped pressure plate in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the adjusting screw and sliding rod according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the support groove and the internal groove of an embodiment of the present utility model.

[0021] Figure 5 This is a schematic diagram of the compression spring and round rod according to an embodiment of the present invention.

[0022] In the diagram: 1. Positioning plate; 2. Positioning groove; 3. Support plate; 4. Moving plate; 5. Guide rod; 6. V-shaped pressure plate; 7. Sliding sleeve; 8. Mounting seat; 9. Push cylinder; 10. Sliding rod; 11. Adjusting screw; 12. Support groove; 13. Round hole; 14. Internal groove; 15. Bottom plate; 16. Lifting plate; 17. Compression spring; 18. Round rod. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Example 1

[0025] Please see Figure 1-5 As shown, a pen tip processing positioning device of this embodiment includes a positioning plate 1 and a positioning groove 2 formed on the top of the positioning plate 1. A support groove 12 is formed at the bottom of the positioning groove 2, and an internal groove 14 is formed at the center of the bottom of the support groove 12.

[0026] The positioning groove 2 is provided with a support plate 3. A tool inlet groove is provided on one side of the support plate 3. A bottom plate 15 that is adapted to the support groove 12 is fixedly connected to the bottom of the support plate 3. A lifting plate 16 that is adapted to the inner groove 14 is fixedly connected to the bottom of the bottom plate 15. The bottom of the lifting plate 16 is connected to the inner bottom of the inner groove 14 through an elastic element.

[0027] The top of the positioning plate 1 is provided with a movable plate 4. Both ends of the movable plate 4 are connected to the top of the positioning plate 1 through a sliding structure. One side of the movable plate 4 is connected to the end of the positioning plate 1 through a horizontal pushing structure. The bottom of the movable plate 4 is provided with a V-shaped pressure plate 6. The top of the V-shaped pressure plate 6 is connected to the movable plate 4 through a vertical adjustment structure.

[0028] Workflow: When using the pen tip processing positioning device of this utility model, firstly, the pen tip prototype to be processed is placed in the positioning groove 2 opened at the top of the positioning plate 1. The bottom of the positioning groove 2 is provided with a support groove 12, and a support plate 3 is provided in the support groove 12. The bottom of the pen tip prototype is in contact with the top surface of the support plate 3. A tool inlet groove is opened on one side of the support plate 3 for subsequent processing tools to pass through. A bottom plate 15 is fixedly connected to the bottom of the support plate 3. The bottom plate 15 is embedded in the support groove 12, and a lifting plate 16 is fixedly connected to the center of its bottom. The lifting plate 16 is located at the positioning... An internal groove 14 is opened at the center of the bottom of plate 1, and is connected to the inner bottom of the internal groove 14 by an elastic element such as a spring. After the pen tip prototype is placed, the operator activates the horizontal pushing structure. This structure acts on one side of the moving plate 4. The two ends of the moving plate 4 are slidably engaged with the top of the positioning plate 1 through a sliding structure. The pushing structure drives the moving plate 4 to move laterally along the positioning plate 1. A V-shaped pressure plate 6 is provided at the bottom of the moving plate 4. The top of the V-shaped pressure plate 6 is connected to the moving plate 4 through a vertical adjustment structure. When the moving plate 4 moves to the predetermined position, the opening of the V-shaped pressure plate 6 aligns with the vertical adjustment structure. The pen tip prototype is positioned in the positioning groove 2. The height of the V-shaped pressure plate 6 is then adjusted via a vertical adjustment structure, causing its bottom V-shaped surface to gradually descend and press against the top of the pen tip prototype, achieving top-level positioning. At this time, the elastic element is compressed, providing upward preload to the support plate 3, ensuring a tight fit between the bottom of the pen tip prototype and the support plate 3. After the V-shaped pressure plate 6 completes its pressing, the pen tip prototype is stably clamped between the V-shaped pressure plate 6 and the support plate 3, while its sides are limited by the groove wall of the positioning groove 2, forming a multi-directional stable constraint. At this point, the machining equipment... The prepared cutting tool can enter through the infeed groove on one side of the support plate 3 to perform cutting or stamping on the pen tip prototype. After processing, the V-shaped pressure plate 6 is lifted and reset by the vertical adjustment structure to release the pressure on the top of the pen tip prototype. At the same time, the horizontal pushing structure drives the moving plate 4 back to its original position. At this time, the elastic force of the elastic element is released, pushing the lifting plate 16, the bottom plate 15 and the support plate 3 to move slightly upward as a whole, slightly lifting the processed pen tip prototype to facilitate the operator to remove it. After the workpiece is removed, the device returns to its initial state and is ready for the next clamping and processing.

[0029] Example 2

[0030] Please see Figure 1-5As shown, in this embodiment, a pen tip processing positioning device includes a compression spring 17 as an elastic element. One end of the compression spring 17 is connected to the bottom of the bottom plate 15, and the other end is connected to the inner bottom of the internal groove 14. Specifically, by setting the compression spring 17 so that one end is connected to the bottom of the bottom plate 15 and the other end is connected to the inner bottom of the internal groove 14, when the V-shaped pressure plate 6 presses the pen tip prototype, the compression spring 17 is compressed and stores elastic potential energy. After processing, when the V-shaped pressure plate 6 is released, the compression spring 17 releases energy to push the bottom plate 15, the support plate 3, and the workpiece to move slightly upward. This achieves the effects of providing stable elastic support, realizing automatic lifting of the workpiece for easy removal, and improving operational convenience and production efficiency.

[0031] The support groove 12 has several round holes 13 on both sides of its inner bottom. The bottom plate 15 has round rods 18 that are adapted to the round holes 13 fixedly connected to both sides of its bottom. Specifically, through the cooperation of the round holes 13 and the round rods 18, the support groove 12 has several round holes 13 on both sides of its inner bottom. The bottom plate 15 has round rods 18 that are adapted to the round holes 13 fixedly connected to both sides of its bottom. The round rods 18 are inserted into the round holes 13. This achieves the effect of assisting in guiding and limiting the lifting and lowering movement of the support plate 3, preventing it from tilting or twisting during the process of being subjected to force or movement, and ensuring that the support plate 3 can be lifted and lowered smoothly and accurately reset.

[0032] Example 3

[0033] Please see Figure 1-5 As shown, this embodiment of a pen tip processing positioning device includes a sliding structure comprising a guide rod 5 and a sliding sleeve 7. Both ends of the guide rod 5 are connected to the top of the positioning plate 1 via fixed plates. The sliding sleeve 7 is slidably engaged with the guide rod 5, and one side of the sliding sleeve 7 is connected to the end of the moving plate 4. Specifically, through the cooperation of the guide rod 5 and the sliding sleeve 7, both ends of the guide rod 5 are connected to the top of the positioning plate 1 via fixed plates, the sliding sleeve 7 is slidably engaged with the guide rod 5, and one side of the sliding sleeve 7 is connected to the end of the moving plate 4. When the cylinder 9 drives the moving plate 4 to move, the sliding sleeve 7 slides axially along the guide rod 5. This achieves the effect of providing precise guidance for the horizontal movement of the moving plate 4, ensuring smooth and straight movement, preventing deviation or jamming, and improving the stability and positioning accuracy of the device.

[0034] The vertical adjustment structure includes an adjusting screw 11 and a sliding rod 10. A sliding groove is provided on one side of the moving plate 4. One end of the adjusting screw 11 is rotatably connected to the top of the V-shaped pressure plate 6, and the other end is threaded through the moving plate 4. One end of the sliding rod 10 is connected to the top of the V-shaped pressure plate 6, and its side wall is slidably engaged with the inside of the sliding groove. Specifically, through the coordinated arrangement of the adjusting screw 11, the sliding rod 10, and the sliding groove, a sliding groove is provided on one side of the moving plate 4. One end of the adjusting screw 11 is rotatably connected to the top of the V-shaped pressure plate 6, and the other end is threaded through the moving plate 4. One end of the sliding rod 10 is connected to the top of the V-shaped pressure plate 6, and its side wall is slidably engaged with the inside of the sliding groove. Rotating the adjusting screw 11 can drive the V-shaped pressure plate 6 to move up and down along the sliding groove. The sliding rod 10 provides guidance by sliding within the sliding groove. This achieves precise, stable, and adjustable vertical movement of the V-shaped pressure plate 6, ensuring controllable clamping force, adapting to workpieces of different thicknesses, and improving clamping accuracy and adaptability.

[0035] The horizontal pushing structure includes a pushing cylinder 9 connected to the top of the positioning plate 1 via a mounting base 8. The output end of the pushing cylinder 9 is connected to one side of the moving plate 4. Specifically, through the cooperative arrangement of the pushing cylinder 9 and the mounting base 8, the mounting base 8 connects the pushing cylinder 9 to the top of the positioning plate 1, and the output end of the pushing cylinder 9 is connected to one side of the moving plate 4. When the pushing cylinder 9 is activated, its piston rod extends and retracts, directly pushing the moving plate 4 to move along the direction of the guide rod 5. This achieves the effect of realizing the automatic, rapid, synchronous, and stable horizontal movement of the moving plate 4 and the V-shaped pressure plate 6, improving the automation level and operational efficiency of tooling clamping and loosening.

[0036] When using the pen tip processing positioning device of this utility model, the pen tip prototype to be processed is first placed in the positioning groove 2 opened at the top of the positioning plate 1. The bottom of the positioning groove 2 is provided with a support groove 12, and a support plate 3 is provided in the support groove 12. The bottom of the pen tip prototype is in contact with the top surface of the support plate 3. A tool inlet groove is opened on one side of the support plate 3 for subsequent processing tools to pass through. A bottom plate 15 adapted to the support groove 12 is fixedly connected to the bottom of the support plate 3. The bottom plate 15 is embedded in the support groove 12, and a lifting plate 16 adapted to the internal groove 14 is fixedly connected to the center of its bottom. The lifting plate 16 is located in the internal groove 14 opened at the center of the bottom of the positioning plate 1. The bottom of the internal groove 14 is connected to the bottom of the lifting plate 16 through a compression spring 17. The support plate 3 provides initial support and elastic reset capability; several round holes 13 are provided on both sides of the inner bottom of the support groove 12, and round rods 18 that are adapted to the round holes 13 are fixedly connected to both sides of the bottom of the bottom plate 15. When the support plate 3 is lifted by force, the round rods 18 slide in the round holes 13, which plays a role in auxiliary guidance and preventing tilting; a movable plate 4 is provided on the top of the positioning plate 1. The two ends of the movable plate 4 are connected to the top of the positioning plate 1 through a sliding structure. The sliding structure includes a guide rod 5 and a sliding sleeve 7. The two ends of the guide rod 5 are connected to the top of the positioning plate 1 through a fixed plate. The sliding sleeve 7 slides with the guide rod 5, and one side of the sliding sleeve 7 is connected to the end of the movable plate 4 to ensure that the movable plate 4 moves smoothly and linearly; one side of the movable plate 4 is connected to a horizontal pushing structure. The horizontal pushing structure, connected to the end of the positioning plate 1, includes a pushing cylinder 9 connected to the top of the positioning plate 1 via a mounting base 8. The output end of the pushing cylinder 9 is connected to one side of the moving plate 4, driving the moving plate 4 to move along the direction of the guide rod 5. A V-shaped pressure plate 6 is provided at the bottom of the moving plate 4. The top of the V-shaped pressure plate 6 is connected to the moving plate 4 via a vertical adjustment structure. The vertical adjustment structure includes an adjusting screw 11 and a sliding rod 10. A sliding groove is provided on one side of the moving plate 4. One end of the adjusting screw 11 is rotatably connected to the top of the V-shaped pressure plate 6, and the other end is threaded through the moving plate 4. One end of the sliding rod 10 is connected to the top of the V-shaped pressure plate 6, and its side wall slides within the sliding groove. When the pen tip prototype is placed in place, the pushing cylinder 9 is activated, and its piston rod extends and retracts to push the moving plate 4. The moving plate 4 moves along the guide rod 5, and the sliding sleeve 7 slides and guides on the guide rod 5. The moving plate 4 drives the V-shaped pressure plate 6 to move directly above the positioning groove 2. Then, the adjusting screw 11 is rotated. The rotation of the adjusting screw 11 drives the V-shaped pressure plate 6 to descend along the sliding groove. At the same time, the sliding rod 10 slides in the sliding groove to provide stable guidance. The V-shaped surface of the V-shaped pressure plate 6 gradually descends and presses against the top of the pen tip prototype. At this time, the compression spring 17 is compressed. The support plate 3 remains stable under the combined action of the bottom plate 15, the lifting plate 16, and the round rod 18. The pen tip prototype is firmly clamped between the V-shaped pressure plate 6 and the support plate 3. Its side is limited by the groove wall of the positioning groove 2, forming a multi-directional stable constraint. The machining tool performs center seam machining on the pen tip through the infeed groove of the support plate 3.After processing is completed, the adjusting screw 11 is rotated in the opposite direction to lift the V-shaped pressure plate 6, releasing the top clamping. The push cylinder 9 is then activated to return the moving plate 4 to its original position. At this time, the elastic force of the compression spring 17 is released, pushing the lifting plate 16, the bottom plate 15, the support plate 3, and the processed workpiece to move slightly upward as a whole. The round rod 18 moves upward in the round hole 13, slightly lifting the workpiece so that it can be easily removed by the operator. The device then returns to its initial state. This invention, by setting a movable plate 4 and a V-shaped pressure plate 6 on the top of the positioning plate 1, and in conjunction with a vertical adjustment structure, achieves active and adjustable clamping of the top of the pen tip prototype, completely solving the technical problem in the prior art where the lack of top limit causes the workpiece to easily shake and jump during processing, significantly improving positioning stability. The V-shaped structure of the V-shaped pressure plate 6 can adapt to pen tip tops of different widths, ensuring good contact and clamping effect. The movable plate 4 achieves smooth movement through the sliding structure of the guide rod 5 and the sliding sleeve 7, and in conjunction with the horizontal pushing structure composed of the pushing cylinder 9 and the mounting base 8, it realizes automatic, rapid, synchronous, and stable horizontal movement of the movable plate 4 and the V-shaped pressure plate 6, improving operating efficiency and automation. The adjusting screw 11 and the sliding rod 10 in the vertical adjustment structure, in conjunction with the sliding groove, realize precise, stable, and adjustable vertical movement of the V-shaped pressure plate 6, ensuring controllable clamping force and adapting to workpieces of different thicknesses. The device improves clamping accuracy and adaptability. The support plate 3 is connected to the compression spring 17 in the internal groove 14 via the bottom plate 15, lifting plate 16, and the compression spring 17. When the V-shaped pressure plate 6 is pressed, it provides upward preload, ensuring the bottom of the workpiece fits snugly. After processing, the compression spring 17 releases energy to automatically lift the workpiece, facilitating removal. The round hole 13 at the bottom of the support groove 12 cooperates with the round rod 18 on the bottom plate 15, providing auxiliary guidance and limiting for the lifting movement of the support plate 3, preventing tilting or twisting during force or movement, ensuring smooth lifting and precise reset of the support plate 3. The entire device, through the pressing of the top V-shaped pressure plate 6, the limiting of the positioning groove 2, the preload of the bottom elastic support, and the guidance of the round rod 18 and the round hole 13, constructs a multi-point, multi-directional, stable, and reliable constraint system, effectively preventing workpiece shaking, displacement, or ejection during processing, greatly improving the accuracy, consistency, and product qualification rate of the seam processing.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A pen tip processing and positioning device, characterized in that, include: The positioning plate and the positioning groove formed on the top of the positioning plate, the bottom of the positioning groove is provided with a support groove, and the bottom center of the support groove is provided with an internal groove. The positioning groove is provided with a support plate inside. A tool inlet groove is provided on one side of the support plate. A bottom plate that matches the support groove is fixedly connected to the bottom of the support plate. A lifting plate that matches the inner groove is fixedly connected to the bottom of the bottom plate. The bottom of the lifting plate is connected to the inner bottom of the inner groove through an elastic element. The top of the positioning plate is provided with a movable plate. Both ends of the movable plate are connected to the top of the positioning plate through a sliding structure. One side of the movable plate is connected to the end of the positioning plate through a horizontal pushing structure. The bottom of the movable plate is provided with a V-shaped pressure plate. The top of the V-shaped pressure plate is connected to the movable plate through a vertical adjustment structure.

2. The pen tip processing and positioning device according to claim 1, characterized in that, The elastic element includes a compression spring, one end of which is connected to the bottom of the bottom plate and the other end of which is connected to the inner bottom of the internal groove.

3. The pen tip processing and positioning device according to claim 1, characterized in that, The sliding structure includes a guide rod and a sliding sleeve. Both ends of the guide rod are connected to the top of the positioning plate through a fixed plate. The sliding sleeve slides with the guide rod, and one side of the sliding sleeve is connected to the end of the moving plate.

4. The pen tip processing and positioning device according to claim 2, characterized in that, The inner bottom of the support groove has several round holes on both sides, and the bottom of the bottom plate is fixedly connected to round rods that are adapted to the round holes on both sides.

5. The pen tip processing and positioning device according to claim 4, characterized in that, The vertical adjustment structure includes an adjusting screw and a sliding rod. A sliding groove is provided on one side of the moving plate. One end of the adjusting screw is rotatably connected to the top of the V-shaped pressure plate, and the other end is threaded through the moving plate. One end of the sliding rod is connected to the top of the V-shaped pressure plate, and its side wall is slidably engaged with the inside of the sliding groove.

6. The pen tip processing and positioning device according to claim 5, characterized in that, The horizontal pushing structure includes a pushing cylinder connected to the top of the positioning plate via a mounting base, the output end of which is connected to one side of the moving plate.

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