A device for sharpening a pen nib

Abstract

The application discloses a pen nib iridium body polishing device and belongs to the technical field of stationery production. The pen nib iridium body polishing device comprises a feeding mechanism, a clamping mechanism and a polishing mechanism. The feeding mechanism is used for feeding pen nibs and comprises a feeding screen, a feeding fixing frame and a material pushing frame. The feeding screen can convey the pen nibs to be polished one by one. The feeding fixing frame is provided with an array of placing grooves. The material pushing frame can adjust the placing positions of the pen nibs. The clamping mechanism is arranged on one side of the feeding fixing frame. The clamping frame is provided with a plurality of clamping assemblies. Each clamping assembly can clamp a single pen nib. The polishing mechanism is arranged on one side of the clamping mechanism. The polishing roller of the polishing mechanism can translate and rotate along the axis direction of the polishing roller. Through the automatic collaborative work of the mechanisms, the pen nib feeding, positioning clamping and multi-angle polishing are integrated and continuously processed, and the automation level and overall processing efficiency of the pen nib polishing processing are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of stationery manufacturing technology, specifically to a device for polishing the iridium body of a fountain pen nib. Background Technology

[0002] The nib of a fountain pen is tiny and intricately structured. During the manufacturing process, an iridium tip needs to be soldered to the nib's tip—a process commonly known in the industry as "iridium dotting." After iridium dotting, the iridium body of the nib needs to be polished. Inaccurate polishing can lead to quality problems such as misaligned nibs, uneven ink flow, skipping, and paper scratching. Therefore, nib polishing is a core process with significant processing difficulties in fountain pen manufacturing.

[0003] Currently, traditional fountain pen nib polishing is mostly done manually using simple handheld polishing equipment or semi-automatic polishing devices. This method is outdated and lacks automation. Manual polishing is highly dependent on operator experience; different operators cannot consistently apply polishing angles, feed rates, and polishing times, easily leading to batch quality defects such as inconsistent nib tip curvature, asymmetry in the center seam, and uneven polishing of the cutting edge. This results in poor product consistency and a low yield rate. Furthermore, manual polishing is extremely inefficient and cannot meet the demands of large-scale fountain pen production, leading to high labor costs and significant production losses. Existing semi-automatic nib polishing equipment typically has fixed polishing angles and feed strokes, offering limited adjustment flexibility and failing to meet the demands for high-efficiency, high-quality nib processing. Summary of the Invention

[0004] To address one of the shortcomings of existing technologies, this invention provides a pen tip iridium grinding device, which solves the problem of grinding the tip of a pen tip.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pen nib iridium body polishing device, comprising: The feeding mechanism is used to supply pen tips; the feeding mechanism includes a feeding screen, a feeding frame and a feeding rack; the feeding screen can transport the pen tips to be polished one by one to the feeding frame; the feeding frame is equipped with an array of placement slots, each slot can hold one pen tip; the feeding rack can adjust the position of the pen tip in the placement slot on the feeding frame. A clamping mechanism is provided on one side of the feeding fixing frame of the feeding mechanism. The clamping mechanism includes a clamping frame, on which a plurality of clamping components are provided. Each clamping component can clamp a pen tip on a feeding fixing frame. A polishing mechanism is disposed on one side of the clamping mechanism. The polishing mechanism includes a polishing roller and a polishing frame. The polishing roller can translate and rotate along its own axis. The polishing frame is rotatably disposed on the fixed table of the pen tip iridium body polishing device. The polishing roller and the polishing frame are rotatably connected and slidably connected. The direction of the sliding connection between the polishing roller and the polishing frame is the axial direction of the polishing roller. The axial direction of rotation of the polishing frame is parallel to the axial direction of the polishing roller. The linkage mechanism can drive the grinding mechanism and clamping components to work together. The linkage mechanism includes a main linkage component and a linkage component. The main linkage component is a motor. The linkage component is linked with the main linkage component, the grinding roller, the grinding frame and the clamping components. The linkage component converts the rotation of the motor shaft of the main linkage component into the sliding motion of the grinding roller and the rotation of the grinding frame and the clamping components.

[0006] Preferably, the feeding screen is a vibrating screen; the feeding mechanism further includes: The ejector frame is located on the side of the feeding frame away from the clamping mechanism. The ejector frame can move toward or away from the clamping mechanism. The frame of the ejector frame is provided with a number of ejector parts, and the number and shape of the ejector parts correspond to the placement slots on the feeding frame. A positioning frame is disposed on the side of the feeding fixing frame facing the clamping mechanism, and the material feeding frame is located between the feeding fixing frame and the positioning frame; the positioning frame is provided with a plurality of positioning slots, and the positioning slots correspond to the clamping components in the clamping mechanism.

[0007] Preferably, the upper side of the material feeding frame is provided with a plurality of material feeding grooves, and the lower side is provided with a linkage groove, the linkage groove being an "n" shaped groove; The feeding mechanism also includes: A material feeding drive assembly is linked to the material feeding frame; the material feeding drive assembly includes: The feeding motor is fixedly installed on one side of the feeding frame; The feeding shaft is linked to the feeding motor, which can drive the feeding shaft to rotate. The feeding linkage wheel assembly includes a first feeding wheel and a second feeding wheel, both of which are cams, and the first feeding wheel and the second feeding wheel are respectively fixedly connected to the feeding shaft; The first feeding rod is linked to the first feeding wheel. One end of the first feeding rod extends into the linkage groove, which can drive the feeding frame to slide in the horizontal direction. The second feeding rod is linked to the second feeding wheel, and the second feeding rod can drive the feeding frame to slide in the vertical direction.

[0008] Preferably, the clamping mechanism further includes: A clamping and fixing frame is a frame that is fixedly installed. The clamping frame and the clamping fixing frame are rotatably connected, and the axial direction of the rotatable connection between the clamping frame and the clamping fixing frame is direction one; The clamping assembly can drive the pen tip to rotate around the axis of rotation in direction two, while direction one and direction two are perpendicular.

[0009] Preferably, the clamping mechanism further includes: The discharge structure is located on one side of the clamping assembly and can push out the pen tip on the clamping assembly.

[0010] Preferably, the clamping assembly includes: The clamping connector is fixedly connected to the clamping frame; The clamping member is rotatably connected to the clamping connector, and one end of the clamping member is provided with a pen tip insertion hole; the axial direction of the rotation of the clamping member is direction two; The positioning structure, set on the clamping component, can position the pen tip at the end of the clamping component; A push rod is disposed inside the clamping member and is slidably connected to the clamping member. One end of the push rod is located outside the clamping member, and the other end can extend to the pen tip insertion hole of the clamping member. The discharge structure includes: The discharge rack is rotatably connected to the clamping and fixing frame, and the discharge rack is located on the side of the push rod away from the pen tip.

[0011] Preferably, the clamping mechanism further includes a clamping linkage structure, which can drive the clamping assembly to rotate the pen tip; the clamping linkage structure includes: A clamping linkage wheel is provided for each of the clamping components, and the clamping linkage wheel and the clamping component are fixedly connected; The clamping linkage component is linked with the clamping linkage wheel; The discharge structure also includes: The discharge linkage arm is rotatably connected to the clamping and fixing frame, and the discharge linkage arm is fixedly connected to the discharge frame.

[0012] Preferably, the polishing mechanism further includes: A material distribution roller is disposed on one side of the grinding roller, and the outer surface of the material distribution roller is in contact with the outer surface of the grinding roller. The material collector is a tube with a flared end, and the flared end of the material collector faces the clamping assembly.

[0013] Preferably, the linkage component includes: The linkage shaft is linked to the motor shaft of the main linkage component, and the main linkage component can drive the linkage shaft to rotate. The first linkage structure can be linked with the clamping linkage component. The first linkage structure includes a first linkage wheel and a first linkage arm. The first linkage wheel is an end face cam set on the linkage shaft, and its cam surface is a wave-shaped structure surface. The first linkage arm is a swing arm set corresponding to the first linkage wheel. One end of the first linkage arm is in contact with the end face of the first linkage wheel, and the other end is engaged with the clamping linkage component through a gear, which can drive the clamping linkage component to reciprocate and translate. The second linkage structure can be linked with the discharge linkage arm through the rotation of the linkage shaft. The second linkage structure can drive the discharge frame to swing back and forth through the discharge linkage arm. The third linkage structure can be linked with the grinding roller through the rotation of the linkage shaft, and the third linkage structure can drive the grinding roller to reciprocate and translate. The fourth linkage structure can be linked with the grinding frame through the rotation of the linkage shaft, and the fourth linkage structure can drive the grinding frame to rotate back and forth.

[0014] Preferably, the second linkage structure includes: The second linkage wheel is a cam that is fixedly mounted on the linkage shaft; The second linkage arm has one end in contact with the outer circumferential surface of the second linkage wheel, and the other end extends to the upper side of the discharge linkage arm and abuts against the upper surface of the discharge linkage arm. The second reset component can reset the discharge rack.

[0015] Preferably, the third linkage structure includes: The third linkage wheel is linked to the linkage shaft; The third linkage arm has one end in contact with the outer surface of the third linkage wheel, and the other end is sleeved on the outside of the grinding roller shaft and rotatably connected to the grinding roller.

[0016] Compared with existing technologies, this solution has the following advantages: By setting up an automated and coordinated feeding mechanism, clamping mechanism, grinding mechanism and linkage mechanism, this solution realizes the integrated continuous operation of pen tip feeding, positioning and clamping, multi-angle grinding and automatic unloading, which greatly improves the automation level and overall processing efficiency of pen tip grinding.

[0017] The equipment achieves orderly and precise arrangement and feeding of pen tips through the compound motion of the feeding frame. Combined with a clamping component that can rotate and adjust in multiple dimensions, it can stably limit and finely adjust the angle of the tiny pen tips, effectively ensuring the positional accuracy during the pen tip grinding process. Simultaneously, the grinding roller can achieve a compound grinding action of axial translation and angular oscillation. Together with the evenly distributed grinding media by the material distribution roller, it can perform all-round and uniform grinding of the pen tip tip, ensuring the consistency of the grinding arc and cutting edge shape.

[0018] The pen nib iridium body polishing device in this solution relies on an integrated linkage mechanism to drive all components to work together in a coordinated manner. The movements are precise and stable, avoiding the processing errors caused by long-term operation of traditional drive structures. This effectively improves the quality and yield of polished pen nibs. The overall equipment has a compact structure and stable operation, making it suitable for the large-scale and precision batch polishing production needs of pen nibs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 1 ; Figure 2 for Figure 1 A magnified view of part A; Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 2 ; Figure 4 for Figure 3 A magnified view of part B; Figure 5 This is a schematic diagram of the feeding mechanism structure in an embodiment of this application. Figure 1 ; Figure 6 This is a schematic diagram of the feeding mechanism structure in an embodiment of this application. Figure 2 ; Figure 7 for Figure 6 A magnified view of part C; Figure 8 for Figure 6 Hidden positioning frame status diagram; Figure 9 This is a schematic diagram of the clamping mechanism structure according to an embodiment of this application. Figure 1 ; Figure 10 This is a schematic diagram of the clamping mechanism structure according to an embodiment of this application. Figure 2 ; Figure 11 This is a schematic diagram of the clamping component structure according to an embodiment of this application; Figure 12 This is a schematic diagram of the grinding mechanism structure according to an embodiment of this application. Figure 1 ; Figure 13 This is a schematic diagram of the grinding mechanism structure according to an embodiment of this application. Figure 2 ; Figure 14 This is a schematic diagram of the linkage mechanism structure in an embodiment of this application. Figure 1 ; Figure 15 for Figure 14 A magnified view of part D; Figure 16 This is a schematic diagram of the linkage mechanism structure in an embodiment of this application. Figure 2 ; Figure 17 for Figure 16 A magnified view of part E; In the picture: 100. Pen nib; 1. Feeding mechanism; 11. Feeding screen; 111. Intermediate feeding component; 12. Feeding fixing frame; 13. Feeding frame; 131. Feeding groove; 132. Linkage groove; 14. Ejection frame; 141. Ejection component; 15. Positioning frame; 16. Feeding drive assembly; 161. Feeding motor; 162. Feeding shaft; 163. First feeding rod; 164. Second feeding rod; 165. First feeding wheel; 166. Second feeding wheel; 2. Clamping mechanism; 21. Clamping fixing frame; 22. Clamping frame; 23. Clamping assembly; 231. Clamping connector; 232. Clamping component; 233. Positioning structure; 234. Push rod; 24. Discharge structure; 241. Discharge frame; 242. Discharge linkage arm; 25. Clamping linkage structure; 251. Clamping linkage wheel; 252. Clamping linkage component; 253. Clamping drive wheel; 26. Clamping motor; 3. Grinding mechanism; 31. Grinding roller; 32. Grinding frame; 33. Material distribution roller; 34. Material collection component; 4. Linkage mechanism; 41. Main linkage component; 42. Linkage assembly; 421. Linkage shaft; 422. First linkage structure; 423. Second linkage structure; 424. Third linkage structure; 425. Fourth linkage structure. Detailed Implementation

[0020] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] This application provides the following technical solution: A pen nib iridium grinding device, please refer to Figures 1-4 The pen nib iridium body polishing device of this solution includes a base platform, on which a feeding mechanism 1, a clamping mechanism 2, a polishing mechanism 3, and a linkage mechanism 4 are installed. The base platform is a cabinet with internal space.

[0022] The feeding mechanism 1 is used to supply pen tips 100. The feeding mechanism 1 includes a feeding screen 11, a feeding fixing frame 12, and a feeding rack 13; the feeding screen 11 is a vibrating screen, which can transport the pen tips 100 to be ground one by one to the feeding fixing frame 12. The feeding fixing frame 12 is provided with an array of placement slots, each placement slot can hold one pen tip 100; the feeding rack 13 can adjust the position of the pen tip 100 in the placement slot on the feeding fixing frame 12. The clamping mechanism 2 is located on one side of the feeding fixing frame 12 of the feeding mechanism 1. The clamping mechanism 2 includes a clamping frame 22, and the clamping frame 22 is provided with a plurality of clamping components 23, each clamping component 23 can clamp one pen tip 100 on the feeding fixing frame 12. The grinding mechanism 3 is located on one side of the clamping mechanism 2. The grinding mechanism 3 includes a grinding roller 31, which can translate and rotate along its own axis. An electric motor for driving the grinding roller 31 to rotate is placed inside the base. For easy distinction, this motor is named the grinding motor. The linkage mechanism 4 is used to drive the clamping mechanism 2 and the grinding mechanism 3 to work together.

[0023] During operation, the pen tips 100 to be polished are placed in the feeding screen 11. The vibration of the feeding screen 11 arranges the pen tips 100 in a row, and the pen tip orientation is adjusted for conveying. The arranged pen tips 100 enter the feeding fixing frame 12, with one pen tip placed in each slot, arranged in a horizontal row. The clamping frame 22 is a rotatable frame. The clamping frame 22 rotates to one side of the feeding mechanism 1, and the pen tips 100 on the feeding fixing frame 12 are conveyed to the clamping components 23 of the clamping mechanism 2. Each clamping component 23 clamps one pen tip 100, completing the feeding. After feeding, the clamping frame 22 turns towards the polishing mechanism 3, and the polishing roller 31 polishes the pen tips 100. After polishing, the pen tips are unloaded, thus completing the polishing of a set of pen tips 100. The linkage mechanism 4 enables the grinding roller 31 to cooperate with the clamping assembly 23, achieving a combined grinding action. This combined action is coordinated with the basic rotation of the grinding roller 31, which in turn includes the rotation of the pen tip 100, the axial lateral movement of the grinding roller 31, and the overall oscillation of the grinding roller 31. This ensures thorough grinding of the pen tip 100, saving manpower while ensuring consistent grinding quality.

[0024] Based on the above implementation plan, see Figures 5 to 8In this design, the feeding mechanism 1 has a slide rail on the discharge side of the feeding screen 11. After the pen tip 100 enters the slide rail, it slides downward along the slide rail and changes to a horizontal direction during the sliding process. A middle feeding component 111 is provided at the bottom of the slide rail. The middle feeding component 111 is a horizontally positioned cylinder, and the end of the cylinder is connected to an ejector component 141. The ejector component 141 is a rod that can push the pen tip 100 into a placement slot at the far end of the feeding fixing frame 12. The placement slot is a combined slot structure, with an inverted trapezoidal slot at the top and a rectangular slot at the bottom. The pen tip 100 can be placed in its trapezoidal slot. An ejector frame 14 is provided on the side of the feeding fixing frame 12 away from the clamping mechanism 2. The ejector frame 14 is driven by another cylinder and can move towards or away from the clamping mechanism 2. Several ejector components 141 are provided on the frame of the ejector frame 14, and the number and shape of the ejector components 141 correspond to the placement slots on the feeding fixing frame 12. During the ejection operation, the ejector 141 of the ejector frame 14 can move into the placement slot, thereby pushing out the pen tip 100 inside the placement slot. On the other side of the loading fixing frame 12, that is, the side facing the clamping mechanism 2, a positioning frame 15 is provided. The positioning frame 15 has several positioning slots, which correspond to the clamping components 23 in the clamping mechanism 2. The positioning slots allow the pen tip 100 to pass through, and their openings are flared. Both the loading fixing frame 12 and the positioning frame 15 are fixed frames, fixedly installed via a loading support frame fixed to the upper part of the base platform. The width between the loading fixing frame 12 and the positioning frame 15 corresponds to the width of the material feeding frame 13. The space between the loading fixing frame 12 and the positioning frame 15 forms a limit and guide for the movement of the material feeding frame 13. The movement of the material feeding frame 13 is a compound movement, including lateral movement and vertical lifting.

[0025] During the loading process, the compound motion of the feeding frame 13 moves the pen tips 100 in the placement slots at the end of the loading fixing frame 12. Each cycle of the feeding frame 13 moves the pen tips 100 laterally by one placement slot position. This completes the loading of pen tips 100 into all placement slots on the loading fixing frame 12. This loading process can be completed in the subsequent polishing process. After loading a set of pen tips 100, the clamping mechanism 2 drives the pen tips 100 to be polished on the polishing mechanism 3, while the loading mechanism 1 continues to load the next set of pen tips 100.

[0026] Based on the above implementation plan, see Figure 8To demonstrate the structure of the material feeding frame 13, the positioning frame 15 is concealed. Several feeding slots 131 are provided on the upper side of the material feeding frame 13, corresponding to the placement slots on the loading fixing frame 12. A linkage slot 132, which is an "n"-shaped slot, is provided on the lower side of the material feeding frame 13. The loading mechanism 1 drives the material feeding frame 13 via the material feeding drive assembly 16. The material feeding drive assembly 16 includes a material feeding motor 161 fixedly mounted on one side of the loading support frame, and a material feeding shaft 162 rotatably mounted on the lower part of the loading support frame. The motor shaft of the material feeding motor 161 is linked to the material feeding shaft 162 via a steering gearbox, thereby driving the material feeding shaft 162 to rotate. A feeding linkage wheel assembly is provided on the feeding shaft 162. The feeding linkage wheel assembly includes a first feeding wheel 165 and two second feeding wheels 166. The first feeding wheel 165 is an end-face cam, meaning that the axial side end face of the first feeding wheel 165 has a wavy protrusion structure. The second feeding wheels 166 are circumferential cams, meaning that the radial circumferential surface of the second feeding wheel 166 is a non-circular cam structure surface. The first feeding wheel 165 and the second feeding wheel 166 are fixedly connected to the feeding shaft 162, and the two second feeding wheels 166 are located on both sides of the first feeding wheel 165. A first feeding rod 163 is provided corresponding to the first feeding wheel 165. The middle part of the first feeding rod 163 is rotatably connected to the feeding support frame, and a return torsion spring is provided at the rotatable connection. A roller is provided on one side of the lower part of the first feeding rod 163, and the roller is in contact with the wavy end face of the first feeding wheel 165. The upper end of the first feeding rod 163 is equipped with another roller, which is located within the linkage groove 132. A second feeding rod 164 is provided for each second feeding wheel 166, located inside the feeding support frame and rotatably connected to it. One end of the second feeding rod 164 is also equipped with a roller, which is in contact with the circumferential side of the second feeding wheel 166. The other end of the second feeding rod 164 is equipped with a push rod, which extends to the lower side of the feeding frame 13.

[0027] When the feeding motor 161 rotates, the first feeding wheel 165 and the second feeding wheel 166 rotate synchronously. The first feeding wheel 165, relying on the wave-shaped structure of its end face, can drive the first feeding rod 163 to swing back and forth, thereby driving the feeding frame 13 laterally back and forth. The second feeding wheel 166 drives the second feeding rod 164 to move in an approximately seesaw motion. When its top rod moves upward, it lifts the feeding frame 13; when its top rod moves downward, the feeding frame 13 descends. Through this compound motion combination, the feeding frame 13 moves repeatedly in a trajectory close to wave motion. When the intermediate loading component 111 pushes the pen tip 100, its pushing position is such that half of the pen tip 100 is located in the placement groove of the loading fixing frame 12, and the other half is located in the feeding groove 131 of the feeding frame 13, with the pen tip facing the ejector frame. When the feeding frame 13 descends, the pen tip 100 can be supported by the feeding fixing frame 12, and when the feeding frame 13 rises, the feeding frame 13 will lift the pen tip 100.

[0028] For the pen tip 100 after the intermediate loading part 111 is ejected, the action flow of this step is as follows: 1. The pen tip 100 is pushed out by the intermediate feeding component 111 into the placement groove at the end of the feeding fixing frame 12; 2. When the feeding frame 13 moves to the end position of the feeding fixing frame 12, it is pushed up from the bottom by the second feeding rod 164. After being raised, the feeding frame 13 lifts up the pen tip 100. 3. The first feeding rod 163 rotates, moving the feeding frame 13 laterally in the opposite direction; 4. The second feeding rod 164 rotates, causing the feeding frame 13 to drop in height, and placing the pen tip 100 in a slot adjacent to the feeding fixing frame 12; 5. The first feeding rod 163 rotates in a different direction, moving the feeding frame 13 back to the placement slot at the end of the feeding fixing frame 12.

[0029] Through the above process, a pen tip 100 can be placed in each slot of the loading and unloading frame 12 and the feeding frame 13. When loading is required, a cylinder drives the ejector frame 14 to move horizontally, and the ejector 141 pushes the pen tip 100 toward the positioning frame 15, passes through the positioning slot on the positioning frame 15, and is inserted into the clamping assembly 23.

[0030] Based on the above implementation scheme, the clamping mechanism 2 further includes a clamping fixing frame 21, which is fixedly mounted on the platform of the base. The clamping frame 22 and the clamping fixing frame 21 are rotatably connected. For ease of explanation, the axis of rotation between the clamping frame 22 and the clamping fixing frame 21 is taken as direction one. The clamping assembly 23 can drive the pen tip 100 to rotate about direction two, which are perpendicular to direction one. See [link to documentation]. Figures 9 to 11The clamping and fixing frame 21 includes two uprights. A clamping motor 26 is fixedly mounted on one of the uprights. It should be noted that the clamping motor 26 does not have a clamping function itself, but rather serves as the power component of the clamping mechanism 2. It is called the clamping motor 26 to distinguish it from other motors. A sprocket is rotatably mounted on the upright where the clamping motor 26 is located. The motor shaft of the clamping motor 26 is linked to the other sprocket via a reversing gearbox. A chain is provided between the two sprockets, which is not shown in the attached drawing. The lower sprocket is connected to the clamping frame 22. The clamping frame 22 includes a main frame rod, which is a cylindrical body with a hollow interior. A through hole is formed in the wall of the main frame rod corresponding to each clamping component 23. A portal-shaped sub-frame is also provided on one side of the main frame rod. The sub-frame is used to enhance the strength of the main frame rod. The clamping motor 26 drives the clamping frame 22 to rotate reciprocally. One rotational position corresponds to the loading position of the loading mechanism 1, and the other side is the grinding position.

[0031] See Figure 11 The diagram shows the structure of a clamping assembly 23. The clamping assembly 23 is roughly pistol-shaped and includes a clamping connector 231, a clamping member 232, a positioning structure 233, and a push rod 234. The clamping connector 231 is used for fixed connection with the clamping frame 22. The clamping connector 231 includes two openable halves, which are fixedly connected by bolts. When combined, they form a circular hole in the middle through which the main frame rod can pass, and a through slot is formed on the upper side of the circular hole. The purpose of this slot will be explained later. The clamping member 232 is a cylindrical body and is rotatably connected to the clamping connector 231. One end of the clamping member 232 has a pen tip insertion hole; the axial direction of rotation of the clamping member 232 is its own axial direction, which is also the aforementioned direction two. The positioning structure 233 includes a "7"-shaped positioning plate, which is mounted on the clamping member 232. The plate is rotatably connected to the clamping member 232. One end of the positioning plate, which has a bent structure, extends to the end of the clamping member 232 that holds the pen tip 100, thus limiting and positioning the pen tip 100 through its bent portion. A spring is provided between the other end of the positioning plate and the clamping member 232. A push rod 234 is located inside the clamping member 232 and is slidably connected to it. One end of the push rod 234 is located outside the clamping member 232, and the other end extends to the pen tip insertion hole of the clamping member 232. A spring is also provided around the push rod 234 to allow it to return to its original position, while simultaneously pressing against the pen tip 100 inside the clamping member 232.

[0032] When the push rod 234 does not apply additional force to the pen tip 100, the positioning plate of the positioning structure 233 can press down on the pen tip 100. Combined with the limiting effect of the push rod 234 on the pen tip, this ensures that the pen tip 100 will not shift during grinding. When grinding is complete and unloading is required, the push rod 234 is used to push the pen tip 100 out. Therefore, an ejection structure 24 is also provided for ejecting the pen tip 100. The ejection structure 24 is located on one side of the clamping assembly 23 and is used to eject the pen tip 100 from the clamping assembly 23. The ejection structure 24 includes an ejection frame 241 and an ejection linkage arm 242. See also... Figure 9 and Figure 10 The lower part of the discharge rack 241 is a discharge rack rod, which is rotatably connected to the uprights on both sides. The upper part of the discharge rack 241 has a discharge plate, which is fixedly connected to the discharge rack rod via an intermediate structure. When the discharge rack rod rotates, it drives the discharge plate to push the push rod 234, causing the push rod 234 to push the pen tip 100 out from the end of the clamping member 232. During the pushing process, the elastic force of the spring corresponding to the positioning plate in the positioning structure 233 is overcome. A discharge linkage arm 242 is fixedly installed at one end of the discharge rack rod, and the discharge linkage arm 242 rotates synchronously with the discharge rack rod. When an external force causes the discharge linkage arm 242 to rotate, the entire discharge rack 241 rotates.

[0033] Based on the above implementation scheme, in order to achieve synchronous rotation of all clamping components 23, the clamping mechanism 2 further includes a clamping linkage structure 25, which includes a clamping linkage wheel 251 and a clamping linkage member 252. (See also...) Figure 10 and Figure 11 One clamping linkage wheel 251 is provided for each clamping member 232, and the clamping linkage wheel 251 and the clamping member 232 are fixedly connected. The clamping linkage wheel 251 extends through the through slot of the aforementioned clamping connector 231 and into the circular hole of the clamping connector 231. The clamping linkage member 252 is provided inside the main frame rod of the clamping frame 22 and can be slidably connected to the main frame rod. The clamping linkage member 252 is a circular rod body, and the rod body part corresponding to the clamping linkage wheel 251 is provided with a linear array of circular fin structures, with the fin structure as teeth, and the clamping linkage wheel 251 as a gear. The end of the clamping linkage wheel 251 is provided with a rack part, and a clamping drive wheel 253 is provided corresponding to the rack part.

[0034] When the angle of the clamping member 232 needs to be adjusted, the rack part is moved by the clamping drive wheel 253, and the clamping linkage member 252 can slide horizontally. The fin structure inside can then rotate the clamping linkage wheel 251. This mechanism does not affect the rotation of the clamping frame 22 itself. When the clamping frame 22 rotates, the clamping linkage wheel 251 can rotate around the clamping linkage member 252 without affecting the tooth meshing between the clamping linkage member 252 and the clamping linkage wheel 251.

[0035] Based on the above implementation plan, see Figure 12 and Figure 13 The polishing mechanism 3 also includes a polishing frame 32, which is rotatably mounted on the platform of the pen nib iridium body polishing device. The polishing frame 32 is a U-shaped frame with sleeve structures at both ends of its upper part. The polishing roller 31 and the polishing frame 32 are rotatably connected to each other through these sleeve structures, and are also slidably connected through these sleeve structures. The direction of the slidable connection between the polishing roller 31 and the polishing frame 32 is the axial direction of the polishing roller 31; the axial direction of rotation of the polishing frame 32 is parallel to the axial direction of the polishing roller 31.

[0036] A material distribution roller 33 is provided on one side of the grinding roller 31, with the outer surface of the material distribution roller 33 in contact with the outer surface of the grinding roller 31. During grinding, abrasive sand is brushed onto the joint between the grinding roller 31 and the material distribution roller 33. As the grinding roller 31 rotates, the material distribution roller 33 rotates accordingly, allowing the abrasive sand to be evenly distributed. A material collector 34 is provided on the side of the material distribution roller 33 away from the grinding roller 31. The material collector 34 is a tube with a flared structure at one end, and the flared end of the material collector 34 faces the clamping assembly 23.

[0037] During polishing, the polishing roller 31 rotates and slides along its own axis. At the same time, the polishing frame 32 also drives the polishing roller 31 to rotate, thereby adjusting the angle of the polishing roller 31. Combined with the rotation of the clamping frame 22 and the clamping assembly 23, the pen tip 100 can be polished at various angles and positions.

[0038] Based on the above implementation plan, see Figures 14 to 17 This solution is equipped with a linkage mechanism 4, which serves as the power source for the grinding mechanism 3 and the clamping component 23, enabling the linkage of various parts and allowing all the mechanisms to work together.

[0039] The linkage mechanism 4 includes a main linkage component 41 and a linkage assembly 42. The main linkage component 41 is a motor. The linkage assembly 42 is linked with the main linkage component 41, the grinding roller 31, the grinding frame 32, and the clamping assembly 23. The linkage assembly 42 converts the rotational motion of the motor shaft of the main linkage component 41 into the sliding motion of the grinding roller 31 and the rotational motion of the grinding frame 32 and the clamping assembly 23. The main linkage component 41 is fixedly mounted on the platform of the base. The linkage assembly 42 includes a linkage shaft 421, which is linked with the motor shaft of the main linkage component 41. The linkage shaft 421 serves as the power output structure of the linkage mechanism 4, and its rotation drives other structures.

[0040] The linkage component 42 includes a first linkage structure 422, a second linkage structure 423, a third linkage structure 424, and a fourth linkage structure 425.

[0041] See Figure 17 The first linkage structure 422 is used to link with the clamping drive wheel 253. The first linkage structure 422 includes a first linkage wheel and a first linkage arm. The first linkage wheel is an end-face cam mounted on the linkage shaft 421, and its cam surface has a wave-shaped structure. The first linkage arm is a swing arm corresponding to the first linkage wheel. The middle part of the first linkage arm is rotatably mounted above the base platform via a support structure. The axis of rotation of the first linkage arm is vertical, and a torsion spring for reset is provided at the connection between the first linkage arm and its corresponding support structure. One end of the first linkage arm is provided with a roller that fits against the end face of the first linkage wheel, and the other end is provided with a sector tooth structure that meshes with the clamping drive wheel 253. When the first linkage wheel rotates with the linkage shaft 421, it drives the first linkage arm to swing, thereby driving the clamping linkage 252 to move via the clamping drive wheel 253. This achieves the coordination of the rotational movements of the linkage shaft 421 and the clamping member 252.

[0042] The second linkage structure 423 is used to achieve linkage between the linkage shaft 421 and the discharge linkage arm 242, thereby enabling the linkage shaft 421 to drive the discharge rack 241 to reciprocate. The second linkage structure 423 includes a second linkage wheel and a second linkage arm. The second linkage arm is also rotatably mounted on the base platform via a support structure, and the axis of rotation of the second linkage arm is transverse. The second linkage wheel is a cam fixedly mounted on the linkage shaft 421. One end of the second linkage arm is equipped with a roller, which is in contact with the outer circumference of the second linkage wheel, and the other end extends to the upper side of the discharge linkage arm 242 and abuts against the upper surface of the discharge linkage arm 242. A torsion spring is provided at the rotational connection of the discharge rack 241 itself as a second reset element to facilitate the reset of the discharge rack 241. When the linkage shaft 421 drives the second linkage wheel to rotate, the second linkage arm can press down on the discharge linkage arm 242, thereby driving the discharge frame 241 to push the push rod 234. The push rod 234 pushes out the pen tip 100, causing the pen tip 100 to fall into the collection component 34.

[0043] The third linkage structure 424 is used to link the axial sliding of the grinding roller 31. See also Figure 17The third linkage structure 424 enables the linkage shaft 421 to drive the grinding roller 31 in a reciprocating translational motion. The third linkage structure 424 includes a third linkage wheel and a third linkage arm. Unlike the previous two, the third linkage wheel is not directly fixed to the linkage shaft 421. Instead, it is linked to the linkage shaft 421 via a combination of belts and pulleys, combined with a gearbox. The gearbox contains a worm gear combination, which converts the rotational force of the linkage shaft 421 into the rotational force of the third linkage wheel via the belts and pulleys. The third linkage wheel is also a cam. The middle part of the third linkage arm is rotatably connected to the outside of the gearbox housing, and one end is equipped with a roller to achieve contact with the third linkage wheel. Similarly, a return spring is installed at the rotation point of the third linkage arm. The connection between the third linkage arm and the grinding roller 31 differs from the previous two linkage structures. A shaft is installed on one side of the grinding roller 31, and a sleeve is rotatably connected to the outside of the shaft. The end of the third linkage arm away from the third linkage wheel is U-shaped, and the aforementioned sleeve is rotatably installed within this U-shaped structure. A slot is provided in the middle of the sleeve, and a pull rod is provided at the end of the U-shaped structure of the third linkage arm, with the pull rod located within the slot of the sleeve. When the third linkage wheel rotates under the drive of the linkage shaft 421, the third linkage arm can swing, thereby pulling or pushing the grinding roller 31.

[0044] The fourth linkage structure 425 is used to link with the grinding frame 32, enabling the linkage shaft 421 to drive the grinding frame 32 to reciprocate. The fourth linkage structure 425 includes a fourth linkage wheel fixedly sleeved on the linkage shaft 421. The fourth linkage wheel is a cam, and a fourth swing arm is provided corresponding to the fourth linkage wheel. The fourth swing arm is also rotatably mounted above the platform of the base via its corresponding support structure. One side of the fourth swing arm has a roller that fits against the outer circumference of the fourth linkage wheel, and the other end has a pushing block that abuts against the outside of the grinding frame 32. The fourth swing arm is approximately "Z" shaped. When the linkage shaft 421 drives the fourth linkage wheel to rotate, the fourth swing arm can push the grinding frame 32, causing the grinding roller 31 to swing at a certain angle. When the pushing block of the fourth swing arm avoids the position of the fourth linkage wheel, the grinding frame 32 returns to its original position under the action of its own return torsion spring.

[0045] Through the above four linkage structures, the coordinated operation of the clamping frame 22 holding the pen tip 100, the grinding action of the grinding roller 31, and the final unloading is achieved. Because the pen tip 100 is very small, the use of a cam can ensure the accuracy and controllability of the processing. However, using telescopic cylinders such as pneumatic cylinders or hydraulic cylinders would be more prone to errors after long-term operation, leading to product defects.

[0046] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0050] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0051] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A device for polishing the iridium body of a fountain pen nib, characterized in that, include: The feeding mechanism is used to supply pen tips; the feeding mechanism includes a feeding screen, a feeding frame and a feeding rack; the feeding screen can transport the pen tips to be polished one by one to the feeding frame; the feeding frame is equipped with an array of placement slots, each slot can hold one pen tip; the feeding rack can adjust the position of the pen tip in the placement slot on the feeding frame. A clamping mechanism is provided on one side of the feeding fixing frame of the feeding mechanism. The clamping mechanism includes a clamping frame, on which a plurality of clamping components are provided. Each clamping component can clamp a pen tip on a feeding fixing frame. A polishing mechanism is disposed on one side of the clamping mechanism. The polishing mechanism includes a polishing roller and a polishing frame. The polishing roller can translate and rotate along its own axis. The polishing frame is rotatably disposed on the fixed table of the pen tip iridium body polishing device. The polishing roller and the polishing frame are rotatably connected and slidably connected. The direction of the sliding connection between the polishing roller and the polishing frame is the axial direction of the polishing roller. The axial direction of rotation of the polishing frame is parallel to the axial direction of the polishing roller. The linkage mechanism can drive the grinding mechanism and clamping components to work together. The linkage mechanism includes a main linkage component and a linkage component. The main linkage component is a motor. The linkage component is linked with the main linkage component, the grinding roller, the grinding frame and the clamping components. The linkage component converts the rotation of the motor shaft of the main linkage component into the sliding motion of the grinding roller and the rotation of the grinding frame and the clamping components.

2. The pen nib iridium body polishing device as described in claim 1, characterized in that, The feeding screen is a vibrating screen; the feeding mechanism further includes: The ejector frame is located on the side of the feeding frame away from the clamping mechanism. The ejector frame can move toward or away from the clamping mechanism. The frame of the ejector frame is provided with a number of ejector parts, and the number and shape of the ejector parts correspond to the placement slots on the feeding frame. A positioning frame is disposed on the side of the feeding fixing frame facing the clamping mechanism, and the material feeding frame is located between the feeding fixing frame and the positioning frame; the positioning frame is provided with a plurality of positioning slots, and the positioning slots correspond to the clamping components in the clamping mechanism.

3. The pen nib iridium grinding device as described in claim 1, characterized in that, The upper side of the material feeding frame is provided with several material feeding grooves, and the lower side is provided with a linkage groove, which is an "n" shaped groove. The feeding mechanism also includes: A material feeding drive assembly is linked to the material feeding frame; the material feeding drive assembly includes: The feeding motor is fixedly installed on one side of the feeding frame; The feeding shaft is linked to the feeding motor, which can drive the feeding shaft to rotate. The feeding linkage wheel assembly includes a first feeding wheel and a second feeding wheel, both of which are cams, and the first feeding wheel and the second feeding wheel are respectively fixedly connected to the feeding shaft; The first feeding rod is linked to the first feeding wheel. One end of the first feeding rod extends into the linkage groove, which can drive the feeding frame to slide in the horizontal direction. The second feeding rod is linked to the second feeding wheel, and the second feeding rod can drive the feeding frame to slide in the vertical direction.

4. The pen nib iridium grinding device as described in claim 1, characterized in that, The clamping mechanism further includes: A clamping and fixing frame is a frame that is fixedly installed. The clamping frame and the clamping fixing frame are rotatably connected, and the axial direction of the rotatable connection between the clamping frame and the clamping fixing frame is direction one; The clamping assembly can drive the pen tip to rotate around the axis of rotation in direction two, while direction one and direction two are perpendicular.

5. The pen nib iridium body polishing device as described in claim 4, characterized in that, The clamping mechanism further includes: The discharge structure is located on one side of the clamping assembly and can push out the pen tip on the clamping assembly.

6. The pen nib iridium grinding device as described in claim 5, characterized in that, The clamping assembly includes: The clamping connector is fixedly connected to the clamping frame; The clamping member is rotatably connected to the clamping connector, and one end of the clamping member is provided with a pen tip insertion hole; the axial direction of the rotation of the clamping member is direction two; The positioning structure, set on the clamping component, can position the pen tip at the end of the clamping component; A push rod is disposed inside the clamping member and is slidably connected to the clamping member. One end of the push rod is located outside the clamping member, and the other end can extend to the pen tip insertion hole of the clamping member. The discharge structure includes: The discharge rack is rotatably connected to the clamping and fixing frame, and the discharge rack is located on the side of the push rod away from the pen tip.

7. The pen nib iridium grinding device as described in claim 6, characterized in that, The clamping mechanism also includes a clamping linkage structure, which can drive the clamping component to rotate the pen tip. The clamping linkage structure includes: A clamping linkage wheel is provided for each of the clamping components, and the clamping linkage wheel and the clamping component are fixedly connected; The clamping linkage component is linked with the clamping linkage wheel; The discharge structure also includes: The discharge linkage arm is rotatably connected to the clamping and fixing frame, and the discharge linkage arm is fixedly connected to the discharge frame.

8. The pen nib iridium grinding device as described in claim 1, characterized in that, The polishing mechanism also includes: A material distribution roller is disposed on one side of the grinding roller, and the outer surface of the material distribution roller is in contact with the outer surface of the grinding roller. The material collector is a tube with a flared end, and the flared end of the material collector faces the clamping assembly.

9. The pen nib iridium grinding device as described in claim 7, characterized in that, The linkage component includes: The linkage shaft is linked to the motor shaft of the main linkage component, and the main linkage component can drive the linkage shaft to rotate. The first linkage structure can be linked with the clamping linkage component. The first linkage structure includes a first linkage wheel and a first linkage arm. The first linkage wheel is an end face cam set on the linkage shaft, and its cam surface is a wave-shaped structure surface. The first linkage arm is a swing arm set corresponding to the first linkage wheel. One end of the first linkage arm is in contact with the end face of the first linkage wheel, and the other end is engaged with the clamping linkage component through a gear, which can drive the clamping linkage component to reciprocate and translate. The second linkage structure can be linked with the discharge linkage arm through the rotation of the linkage shaft. The second linkage structure can drive the discharge frame to swing back and forth through the discharge linkage arm. The third linkage structure can be linked with the grinding roller through the rotation of the linkage shaft, and the third linkage structure can drive the grinding roller to reciprocate and translate. The fourth linkage structure can be linked with the grinding frame through the rotation of the linkage shaft, and the fourth linkage structure can drive the grinding frame to rotate back and forth.

10. The pen nib iridium body polishing device as described in claim 9, characterized in that, The second linkage structure includes: The second linkage wheel is a cam that is fixedly mounted on the linkage shaft; The second linkage arm has one end in contact with the outer circumferential surface of the second linkage wheel, and the other end extends to the upper side of the discharge linkage arm and abuts against the upper surface of the discharge linkage arm. The second reset component can reset the discharge rack.

11. The pen nib iridium body polishing device as described in claim 10, characterized in that, The third linkage structure includes: The third linkage wheel is linked to the linkage shaft; The third linkage arm has one end in contact with the outer surface of the third linkage wheel, and the other end is sleeved on the outside of the grinding roller shaft and rotatably connected to the grinding roller.

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