Automatic pen point processing machine tool with positioning device

Abstract

The invention relates to the technical field of pen point processing, in particular to an automatic pen point processing machine tool with a positioning device, which comprises a bottom box, a mounting plate, a support plate and the like, the top of the bottom box is connected with the mounting plate, and the top of the mounting plate is connected with the support plate. The end of a pen point can be ground through the electric grinding machine, an electric drill can drill holes in the ground pen point, chippings and the machined pen point can fall into a sliding frame, a shifting rod can shift a triangular block to enable a net plate to move in a reciprocating mode, and therefore the chippings on the net plate and the machined pen point can move; chippings on the screen plate can better fall down, and the chippings are prevented from remaining on the screen plate; through the effect of the guide plate, the arc-shaped positioning blocks on the front side and the rear side can move in the direction close to each other, the pen points in the conveying groove are clamped and positioned, and displacement of the pen points is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pen tip processing, and in particular to an automatic pen tip processing machine tool with a positioning device. Background Art

[0002] The pen tip processing machine tool is a mechanical equipment specially used for manufacturing pen tips. It can accurately process the pen tips into the required shape and size, ensure the stability of the processing process, and thus ensure the quality of the pen tips.

[0003] The current automated processing machine tools can automatically grind and drill pen tips to complete the processing of the pen tips. The processed pen tips will fall into a square collection box through the discharge port for collection. The debris generated during processing will also fall into the collection box. The bottom of the collection box is a mesh that can discharge the debris. As the number of pen tips increases, some pen tips will accumulate in the collection box. The collection box is placed below the discharge port and will not move, resulting in the accumulation of pen tips unable to disperse. The accumulated pen tips will block the debris, making it difficult to discharge the debris. Summary of the invention

[0004] In order to overcome the disadvantage that the accumulated pen tips block the debris, making it difficult to discharge the debris, the present invention provides a pen tip automatic processing machine tool with a positioning device.

[0005] The technical scheme is as follows: a pen tip automatic processing machine tool with a positioning device, including a bottom box, a mounting plate, a support plate, an electric guide rail, an electric grinder, an electric slide rail, an electric drill, a rotating shaft, a conveying wheel, a conveyor belt, a conveying plate, a collecting mechanism, a positioning mechanism, a cutting mechanism and a rotating mechanism. The top of the bottom box is connected to the mounting plate, the top of the mounting plate is connected to the support plate, the side of the support plate is connected to the electric guide rail and the electric slide rail, the slider of the electric guide rail is connected to the electric grinder, the slider of the electric slide rail is connected to the electric drill, the left and right sides of the top of the mounting plate are rotatably connected to the rotating shaft, and the front and rear of the rotating shaft are connected to the conveying Wheel, a conveyor belt is wound around two conveyor wheels opposite to each other on the left and right, a conveyor plate is connected between the two conveyor belts at even intervals, a conveyor groove is opened on the side of the conveyor plates away from each other, the conveyor plate can convey the pen tip to the bottom of the electric grinder, the electric grinder grinds the end of the pen tip, and the conveyor plate can convey the ground pen tip to the bottom of the electric drill, the electric drill drills the ground pen tip, the collecting mechanism is used to collect the processed pen tip, the positioning mechanism is used to position the pen tip, the cutting mechanism is used to cut the pen tip raw material, and the rotating mechanism is used to control the intermittent rotation of the conveyor wheel and intermittently convey the pen tip.

[0006] Preferably, the collecting mechanism includes a guide frame, a sliding frame, a mesh plate, a spring 1, a movable plate, a triangular block, a connecting shaft, a disc and a lever. The bottom of the mounting plate is connected to the guide frame, the side of the guide frame is slidably connected to the sliding frame, and the lower part of the sliding frame is slidably connected to the mesh plate. The debris generated by processing and the completed pen tip will fall into the sliding frame, and the debris will fall down through the mesh plate, and the completed pen tip will remain on the mesh plate, so that the debris and the completed pen tip are separated. A spring 1 is connected between the mesh plate and the sliding frame, and the mesh plate is reset by the spring 1. A movable plate is connected to the mesh plate, and two triangular blocks are connected to the movable plate. The mounting plate is rotatably connected to a connecting shaft, and the connecting shaft is connected to the rotating shaft on the left side. A disc is connected to the connecting shaft, and levers are connected to the disc at evenly spaced intervals in the circumferential direction. The lever is used to lever the triangular block to move the mesh plate. Through the action of the spring 1, the mesh plate can be moved back and forth, so that the debris and the completed pen tip on the mesh plate move.

[0007] Preferably, the positioning mechanism includes a circular plate, a slide plate, a second spring, an arc-shaped positioning block, a roller, a connecting frame and a guide plate. The sides of the conveying plates that are away from each other are connected to the circular plate, the front and rear sides of the circular plate are slidably connected to the slide plate, a second spring is connected between the slide plate and the circular plate, the slide plate is reset by the second spring, the slide plates are connected to arc-shaped positioning blocks, the slide plates are rotatably connected to the rollers, the front and rear sides of the top of the mounting plate are connected to the connecting frame, the connecting frame is connected to the guide plate, the guide plate is used to guide the slide plate so that the arc-shaped positioning blocks on the front and rear sides move towards each other, clamp the pen tip in the conveying groove, and position the pen tip.

[0008] Preferably, the cutting mechanism includes a guide cylinder, an electric push rod, a sliding frame, a cutter and an electric traction wheel. The guide cylinder is connected to the support plate, the electric push rod is connected to the guide cylinder, the sliding frame is slidably connected to the bottom of the guide cylinder, the telescopic rod of the electric push rod is connected to the sliding frame, the bottom of the sliding frame is connected to the cutter, and two electric traction wheels are connected to the top of the guide cylinder. The electric traction wheel is used to pull the nib raw material into the guide cylinder, the nib raw material moves along the guide cylinder into the conveying trough, the cutter cuts the nib raw material, and the nib remains in the conveying trough.

[0009] Preferably, the rotating mechanism includes a gear ring, a moving rod and a tooth block. The gear ring is connected to the conveying wheel at the left rear, the moving rod is connected to the electric drill, and the tooth block is hingedly connected to the moving rod. The tooth block will engage with the gear ring during the downward movement, and the tooth block will pass over the gear ring. Then the tooth block moves upward and engages with the gear ring. The tooth block drives the gear ring to rotate, the gear ring drives the conveying wheel to rotate, and the conveying wheel drives the conveying plate to rotate to convey the pen tip. A torsion spring is provided between the tooth block and the moving rod, and the tooth block is reset by the torsion spring.

[0010] Preferably, it also includes a mounting frame, a mounting box and support wheels, wherein two mounting frames are connected to the top of the mounting plate, a mounting box is connected between the two mounting frames, and support wheels for supporting the conveying plate are rotatably connected at even intervals in the mounting box, and the support wheels are in contact with the bottom of the conveying plate.

[0011] Preferably, a protective cover and a protective door are further included. The top of the mounting plate is connected to the protective cover, and the side of the protective cover is hingedly connected to the protective door.

[0012] Preferably, a guide rod is further included, and the sliding frame is connected with the guide rod for guiding the moving plate, and the guide rod and the moving plate are slidably connected.

[0013] Preferably, a box door is further included, and the side of the bottom box is hingedly connected to the box door.

[0014] Beneficial effects: 1. The present invention can grind the end of the pen tip through an electric grinder, and the electric drill can drill holes in the ground pen tip. The debris and the processed pen tip will fall into the sliding frame, and the lever will move the triangular block to make the mesh plate reciprocate, thereby enabling the debris on the mesh plate and the processed pen tip to move, so that the debris on the mesh plate can fall better and avoid debris remaining on the mesh plate.

[0015] 2. Through the action of the guide plate, the arc-shaped positioning blocks on the front and rear sides can move towards each other, clamp the pen tip in the conveying groove, position the pen tip, and avoid displacement of the pen tip.

[0016] 3. When processing the pen tip, the support wheel can support the conveying plate to improve the stability of the conveying plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0018] Figure 2 A partial three-dimensional structural schematic diagram of the present invention is shown.

[0019] Figure 3 A first three-dimensional structural schematic diagram of the collecting mechanism of the present invention is shown.

[0020] Figure 4 A second three-dimensional structural schematic diagram of the collecting mechanism of the present invention is shown.

[0021] Figure 5 A first three-dimensional structural schematic diagram of the positioning mechanism of the present invention is shown.

[0022] Figure 6 A second three-dimensional structural schematic diagram of the positioning mechanism of the present invention is shown.

[0023] Figure 7A three-dimensional structural schematic diagram of the spring 2 and the arc-shaped positioning block of the present invention is shown.

[0024] Figure 8 A first three-dimensional structural schematic diagram of the cutting mechanism of the present invention is shown.

[0025] Fig. 9 A second three-dimensional structural schematic diagram of the cutting mechanism of the present invention is shown.

[0026] Fig.10 A first three-dimensional structural schematic diagram of the rotating mechanism of the present invention is shown.

[0027] Fig.11 A second three-dimensional structural schematic diagram of the rotating mechanism of the present invention is shown.

[0028] Fig.12 A three-dimensional structural schematic diagram of the moving rod and the gear block of the present invention is shown.

[0029] Fig.13 A three-dimensional structural schematic diagram of the mounting frame and the mounting box of the present invention is shown.

[0030] Fig.14 A three-dimensional structural schematic diagram of the installation box and the support wheels of the present invention is shown.

[0031] The meanings of the reference numerals in the figure are as follows: 1: bottom box, 2: mounting plate, 3: support plate, 4: electric guide rail, 5: electric grinder, 6: electric slide rail, 7: electric drill, 8: rotating shaft, 9: conveying wheel, 10: conveying belt, 11: conveying plate, 12: conveying trough, 13: guide frame, 14: sliding frame, 15: mesh plate, 16: spring 1, 17: moving plate, 18: triangular block, 19: connecting shaft, 20: disc, 21: lever, 22: Reciprocating plate, 23: slide plate, 24: spring two, 25: arc positioning block, 26: roller, 27: connecting frame, 28: guide plate, 29: guide cylinder, 30: electric push rod, 31: sliding frame, 32: cutter, 33: electric traction wheel, 34: gear ring, 35: moving rod, 36: gear block, 37: mounting frame, 38: mounting box, 39: supporting wheel, 40: protective cover, 41: protective door, 42: guide rod, 43: box door. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0033] Implementation 1: Reference Figure 1-Figure 12A pen tip automatic processing machine tool with a positioning device includes a bottom box 1, a mounting plate 2, a support plate 3, an electric guide rail 4, an electric grinder 5, an electric slide rail 6, an electric drill 7, a rotating shaft 8, a conveying wheel 9, a conveying belt 10, a conveying plate 11, a collecting mechanism, a positioning mechanism, a cutting mechanism and a rotating mechanism. The top of the bottom box 1 is connected to the mounting plate 2 by bolts, the rear side of the top of the mounting plate 2 is connected to the support plate 3 by bolts, the middle part of the front side of the support plate 3 is connected to the electric guide rail 4 by bolts, the front side of the slider of the electric guide rail 4 is connected to the electric grinder 5 by bolts, and the left part of the front side of the support plate 3 is connected to the electric Slide rail 6, the front side of the slider of the electric slide rail 6 is connected to an electric drill 7 by bolts, the left and right sides of the top of the mounting plate 2 are rotatably connected with a rotating shaft 8, the front and rear of the rotating shaft 8 are connected to a conveying wheel 9 by a key, and a conveyor belt 10 is wound around the two conveying wheels 9 opposite to each other. A conveying plate 11 is evenly spaced between the two conveying belts 10, and a conveying groove 12 is opened on the side of the conveying plate 11 away from each other. The collecting mechanism is used to collect the processed pen tips, the positioning mechanism is used to position the pen tips, the cutting mechanism is used to cut the pen tip raw materials, and the rotating mechanism is used to control the intermittent rotation of the conveying wheel 9 and intermittently convey the pen tips.

[0034] Reference Figure 3 and Figure 4 The collecting mechanism includes a guide frame 13, a sliding frame 14, a mesh plate 15, a spring 16, a movable plate 17, a triangular block 18, a connecting shaft 19, a disc 20 and a lever 21. The left side of the bottom of the mounting plate 2 is connected with the guide frame 13 by bolts, the left side of the guide frame 13 is slidably connected with the sliding frame 14, the lower part of the sliding frame 14 is slidably connected with the mesh plate 15, two springs 16 are connected between the rear side of the top of the mesh plate 15 and the rear side of the sliding frame 14, and the two springs 16 are arranged opposite to each other on the left and right sides, the middle of the rear side of the top of the mesh plate 15 is connected with a movable plate 17, and the left and right sides of the upper front side of the movable plate 17 are connected with triangular blocks 18, the lower left part of the mounting plate 2 is rotatably connected with a connecting shaft 19, the front end of the connecting shaft 19 is connected to the rear end of the rotating shaft 8 on the left, the rear end of the connecting shaft 19 is connected with a disc 20, and the upper part of the disc 20 is evenly spaced circumferentially connected with a lever 21.

[0035] Reference Figure 5-Figure 7The positioning mechanism includes a circular plate 22, a slide plate 23, a second spring 24, an arc-shaped positioning block 25, a roller 26, a connecting frame 27 and a guide plate 28. The sides of the conveying plates 11 that are away from each other are connected with the circular plate 22, and the front and rear sides of the circular plate 22 are slidably connected with the slide plates 23. A second spring 24 is connected between the top of the slide plate 23 and the circular plate 22. The sides of the slide plates 23 on the front and rear sides that are close to each other are connected with the arc-shaped positioning block 25, and the sides of the slide plates 23 on the front and rear sides that are close to each other are rotatably connected with the roller 26. The front and rear sides of the top of the mounting plate 2 are connected with the connecting frame 27 by bolts, and the sides of the two connecting frames 27 that are close to each other are connected with the guide plate 28, and the conveyor belt 10 is located between the two guide plates 28.

[0036] Reference Figure 8 and Fig. 9 The cutting mechanism includes a guide cylinder 29, an electric push rod 30, a sliding frame 31, a cutter 32 and an electric traction wheel 33. The guide cylinder 29 is connected to the right front side of the support plate 3, and the electric push rod 30 is connected to the lower front side of the guide cylinder 29 by bolts. The bottom of the guide cylinder 29 is slidably connected to the sliding frame 31, the telescopic rod of the electric push rod 30 is connected to the sliding frame 31, the cutter 32 is connected to the left side of the bottom of the sliding frame 31, and the electric traction wheels 33 are connected to the front and rear sides of the top of the guide cylinder 29.

[0037] Reference Figure 10-12 The rotating mechanism includes a gear ring 34, a moving rod 35 and a tooth block 36. The rear side of the conveying wheel 9 at the left rear is connected to the gear ring 34, the rear side of the bottom of the electric drill 7 is connected to the moving rod 35, and the lower front part of the moving rod 35 is hingedly connected to the tooth block 36. The tooth block 36 will mesh with the gear ring 34 during the downward movement, and a torsion spring is provided between the tooth block 36 and the moving rod 35.

[0038] Reference Figure 4 , also includes a guide rod 42, the middle part of the rear side of the sliding frame 14 is connected to the guide rod 42, and the guide rod 42 and the moving plate 17 are slidably connected.

[0039] Reference Figure 1 , and also includes a box door 43, and the front and rear sides of the left side of the bottom box 1 are hingedly connected with the box door 43.

[0040] The worker puts the pen tip raw material between the two electric traction wheels 33, and the electric traction wheel 33 pulls the pen tip raw material downward and pulls the pen tip raw material into the guide cylinder 29. The pen tip raw material moves along the guide cylinder 29 into the conveying trough 12, and then controls the telescopic rod of the electric push rod 30 to extend, driving the sliding frame 31 and the cutter 32 to move right, and the cutter 32 cuts the pen tip raw material, and the pen tip remains in the conveying trough 12, and then controls the electric slide rail 6 to drive the electric drill 7 to move downward, and the electric drill 7 drives the moving rod 35 and the tooth block 36 to move downward. The tooth block 36 will mesh with the gear ring 34 during the downward movement, and then the tooth block 36 will rotate upward, and the torsion spring will be deformed. After the tooth block 36 passes over the gear ring 34, the tooth block 36 will rotate downward under the action of the torsion spring, and the electric slide rail 6 is controlled to drive the electric drill 7 moves upward, the electric drill 7 drives the moving rod 35 and the tooth block 36 to move upward, the tooth block 36 moves upward and meshes with the gear ring 34, the tooth block 36 drives the gear ring 34 to rotate, the gear ring 34 drives the conveying wheel 9 to rotate, the conveying wheel 9 drives the conveying plate 11 to rotate, and the pen tip is conveyed, and the pen tip is conveyed to the bottom of the electric grinder 5, and the electric guide rail 4 is controlled to drive the electric grinder 5 to move downward to grind the end of the pen tip, and the above operation is repeated, so that the ground pen tip can be conveyed to the bottom of the electric drill 7, and the electric drill 7 drills the ground pen tip to complete the processing of the pen tip, and the pen tip is automatically processed, which can improve the work efficiency, and the debris generated during the processing will remain on the conveying plate 11, and the rotation of the conveying plate 11 can also drive the circular plate 22 and the slide plate 23 to rotate. When the slide plate 23 rotates and contacts the guide plate 28, under the guiding action of the guide plate 28, the slide plates 23 on the front and rear sides will move in the direction of approaching each other, so that the arc-shaped positioning blocks 25 on the front and rear sides can move in the direction of approaching each other, clamping the pen tip in the conveying groove 12, positioning the pen tip, and preventing the pen tip from shifting. The spring 24 is compressed, and under the action of the roller 26, the friction force generated when the slide plate 23 moves can be reduced, so that the slide plate 23 moves more smoothly. When the slide plate 23 rotates and disengages from the guide plate 28, under the action of the spring 24, the slide plates 23 on the front and rear sides will move in the direction of moving away from each other, so that the arc-shaped positioning blocks 25 on the front and rear sides can move in the direction of moving away from each other, releasing the pen tip. At this time, the pen tip has been After the processing is completed, when the conveying plate 11 rotates to the top of the sliding frame 14, the debris on the conveying plate 11 and the processed pen tip will fall into the sliding frame 14, and the debris will fall down through the mesh plate 15, and the processed pen tip will remain on the mesh plate 15, and the debris and the processed pen tip will be separated. The rotation of the rotating shaft 8 on the left will drive the connecting shaft 19 to rotate, and the connecting shaft 19 drives the disc 20 and the lever 21 to rotate, and the lever 21 will shift the triangular block 18 to move the triangular block 18 backward, and the triangular block 18 drives the moving plate 17 and the mesh plate 15 to move backward. The spring 16 is stretched, and the guide rod 42 can guide the moving plate 17 to improve the stability of the moving plate 17. When the lever 21 and the triangular block 18 are out of contact, the mesh plate 15 moves forward under the action of the spring 16.In this way, the mesh plate 15 can be reciprocated, so that the debris on the mesh plate 15 and the finished pen tip can move, so that the debris on the mesh plate 15 can fall better and avoid the debris remaining on the mesh plate 15. The sliding frame 14 can be taken out from the guide frame 13 to facilitate the collection of the finished pen tip in the sliding frame 14. The box door 43 can be opened, and then the container can be placed directly under the sliding frame 14 to collect the discharged debris.

[0041] Implementation method 2: Based on implementation method 1, refer to Fig.13 and Fig.14 , also includes a mounting frame 37, a mounting box 38 and a support wheel 39. The front and rear sides of the top of the mounting plate 2 are connected to the mounting frame 37 by bolts, and the mounting box 38 is connected between the two mounting frames 37 by bolts. The mounting box 38 is evenly spaced and rotatably connected to the support wheel 39. The support wheel 39 is in contact with the bottom of the conveying plate 11. The support wheel 39 can support the conveying plate 11 to improve the stability of the conveying plate 11.

[0042] Reference Figure 1 , also includes a protective cover 40 and a protective door 41. The top of the mounting plate 2 is connected to the protective cover 40 by bolts, and the left and right sides of the front side of the protective cover 40 are hingedly connected to the protective door 41. The protective cover 40 and the protective door 41 can protect the components on the top of the mounting plate 2 to prevent dust from falling on the components on the top of the mounting plate 2.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pen tip automatic processing machine tool with a positioning device, comprising a bottom box (1), a mounting plate (2), a support plate (3), an electric guide rail (4), an electric grinder (5), an electric slide rail (6) and an electric drill (7), wherein the top of the bottom box (1) is connected to the mounting plate (2), the top of the mounting plate (2) is connected to the support plate (3), the side of the support plate (3) is connected to the electric guide rail (4) and the electric slide rail (6), the slider of the electric guide rail (4) is connected to the electric grinder (5), the slider of the electric slide rail (6) is connected to the electric drill (7), characterized in that: The device also comprises a rotating shaft (8), a conveying wheel (9), a conveying belt (10), a conveying plate (11), a collecting mechanism, a positioning mechanism, a cutting mechanism and a rotating mechanism. The left and right sides of the top of the mounting plate (2) are both rotatably connected with the rotating shaft (8). The front and rear of the rotating shaft (8) are both connected with conveying wheels (9). The conveying belt (10) is wound around two conveying wheels (9) opposite to each other. The two conveying belts (10) are evenly spaced and connected with a conveying plate (11). The conveying plates (11) are each provided with a conveying groove on the side away from each other. (12), the conveying plate (11) can convey the pen tip to the bottom of the electric grinder (5), the electric grinder (5) grinds the end of the pen tip, and the conveying plate (11) can convey the ground pen tip to the bottom of the electric drill (7), the electric drill (7) drills the ground pen tip, the collecting mechanism is used to collect the processed pen tip, the positioning mechanism is used to position the pen tip, the cutting mechanism is used to cut the pen tip raw material, and the rotating mechanism is used to control the intermittent rotation of the conveying wheel (9) to intermittently convey the pen tip.

2. The automatic pen tip processing machine tool with a positioning device according to claim 1, characterized in that: The collecting mechanism comprises a guide frame (13), a sliding frame (14), a screen plate (15), a spring (16), a movable plate (17), a triangular block (18), a connecting shaft (19), a disc (20) and a lever (21). The bottom of the mounting plate (2) is connected with the guide frame (13), the side of the guide frame (13) is slidably connected with the sliding frame (14), the lower part of the sliding frame (14) is slidably connected with the screen plate (15), the debris generated by processing and the processed pen tip will fall into the sliding frame (14), the debris will fall down through the screen plate (15), the processed pen tip will remain on the screen plate (15), the debris and the processed pen tip are separated, and the screen plate (15) and the sliding frame (14) are connected. A spring (16) is connected, and the screen (15) is reset by the spring (16). The screen (15) is connected with a movable plate (17), and the movable plate (17) is connected with two triangular blocks (18). A connecting shaft (19) is rotatably connected to the mounting plate (2), and the connecting shaft (19) is connected to the rotating shaft (8) on the left side. A disk (20) is connected to the connecting shaft (19), and levers (21) are connected to the disk (20) at even intervals in the circumferential direction. The levers (21) are used to move the triangular blocks (18) to move the screen (15). Through the action of the spring (16), the screen (15) can be reciprocated, so that the debris on the screen (15) and the finished pen head are moved.

3. The automatic pen tip processing machine tool with a positioning device according to claim 2, characterized in that: The positioning mechanism comprises a circular plate (22), a slide plate (23), a second spring (24), an arc-shaped positioning block (25), a roller (26), a connecting frame (27) and a guide plate (28). The sides of the conveying plates (11) that are away from each other are connected to the circular plate (22). The front and rear sides of the circular plate (22) are slidably connected to the slide plate (23). The second spring (24) is connected between the slide plate (23) and the circular plate (22). The slide plate (23) is reciprocated by the second spring (24). The slide plate (23) is connected to an arc-shaped positioning block (25), the slide plate (23) is rotatably connected to a roller (26), the top of the mounting plate (2) is connected to a connecting frame (27) at both the front and rear sides, the connecting frame (27) is connected to a guide plate (28), the guide plate (28) is used to guide the slide plate (23), so that the arc-shaped positioning blocks (25) at the front and rear sides move in a direction close to each other, clamp the pen tip in the conveying groove (12), and position the pen tip.

4. The automatic pen tip processing machine tool with a positioning device according to claim 3, characterized in that: The cutting mechanism comprises a guide cylinder (29), an electric push rod (30), a sliding frame (31), a cutter (32) and an electric traction wheel (33). The support plate (3) is connected with the guide cylinder (29), the guide cylinder (29) is connected with the electric push rod (30), the bottom of the guide cylinder (29) is slidably connected with the sliding frame (31), the telescopic rod of the electric push rod (30) is connected with the sliding frame (31), the bottom of the sliding frame (31) is connected with the cutter (32), the top of the guide cylinder (29) is connected with two electric traction wheels (33), the electric traction wheel (33) is used to pull the writing head raw material into the guide cylinder (29), the writing head raw material moves along the guide cylinder (29) into the conveying groove (12), the cutter (32) cuts the writing head raw material, and the writing head remains in the conveying groove (12).

5. The automatic pen tip processing machine tool with a positioning device according to claim 4, characterized in that: The rotating mechanism comprises a gear ring (34), a moving rod (35) and a tooth block (36). The left rear conveying wheel (9) is connected with the gear ring (34), the electric drill (7) is connected with the moving rod (35), the moving rod (35) is hingedly connected with the tooth block (36), the tooth block (36) will mesh with the gear ring (34) during the downward movement, the tooth block (36) will pass over the gear ring (34), and then the tooth block (36) will move upward and mesh with the gear ring (34), the tooth block (36) drives the gear ring (34) to rotate, the gear ring (34) drives the conveying wheel (9) to rotate, the conveying wheel (9) drives the conveying plate (11) to rotate, and the pen tip is conveyed, a torsion spring is arranged between the tooth block (36) and the moving rod (35), and the tooth block (36) is reset by the torsion spring.

6. The automatic pen tip processing machine tool with a positioning device according to claim 5, characterized in that: The utility model also comprises a mounting frame (37), a mounting box (38) and a supporting wheel (39), wherein two mounting frames (37) are connected to the top of the mounting plate (2), a mounting box (38) is connected between the two mounting frames (37), and supporting wheels (39) for supporting the conveying plate (11) are rotatably connected at even intervals in the mounting box (38), and the supporting wheels (39) are in contact with the bottom of the conveying plate (11).

7. The automatic pen tip processing machine tool with a positioning device according to claim 6, characterized in that: It also includes a protection cover (40) and a protection door (41); the top of the mounting plate (2) is connected to the protection cover (40); and the side of the protection cover (40) is hingedly connected to the protection door (41).

8. The automatic pen tip processing machine tool with a positioning device according to claim 7, characterized in that: It also includes a guide rod (42). The slide frame (14) is connected with the guide rod (42) for guiding the movable plate (17). The guide rod (42) and the movable plate (17) are slidably connected.

9. The automatic pen tip processing machine tool with a positioning device according to claim 8, characterized in that: It also comprises a box door (43), and the side of the bottom box (1) is hingedly connected with the box door (43).

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