A clamping device for nib processing

Abstract

This utility model provides a clamping device for pen tip processing, relating to the field of pen tip processing technology. It includes a placement table, with double sprocket shafts rotatably connected to both ends of the side of the placement table. Two sprockets of the double sprocket shafts are respectively disposed on both sides of the placement table, and chains meshing with the two double sprocket shafts are provided on both sides of the placement table. A ballpoint pen tip blank is placed using a groove, and a pressure bar within a movable frame at the notch lowers to press down on the ballpoint pen tip blank, thus fixing its position. Furthermore, a pusher block within the movable frame moves to abut against the end of the ballpoint pen tip blank facing away from the drilling device, ensuring that the ballpoint pen tip blank does not wobble during drilling.

Description

Technical Field

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

[0002] To ensure that writing ink can smoothly enter the pen tip, the pen tip needs to be drilled. Before drilling, the pen tip needs to be clamped. Therefore, a clamping device for pen tip processing, disclosed in CN221791761U, is proposed. In use, the device is first placed at the drilling position, and the ballpoint pen tip blank is placed between two clamping plates. The rotating wheel is rotated to rotate the bidirectional threaded rod. After the bidirectional threaded rod rotates, it will drive the two clamping plates to move closer together. As the two clamping plates move closer together, the pen tip blank can be pre-clamped under the action of the clamping cover. As the bottom of the two clamping plates continue to move closer, the pen tip blank rod can be reliably clamped again under the action of the clamping pad. Thus, the pen tip blank is reliably clamped under the double clamping action, preventing the pen tip blank from slipping during processing, thereby improving the drilling efficiency of the pen tip blank.

[0003] In the existing technology, one end of the spring is inserted into the connecting block and the other end is welded to the clamping plate. This design may cause the ballpoint pen tip blank to loosen during the processing. This is because the elastic properties of the spring cause the clamping force to change during the processing. When vibration or external force occurs during the processing, the spring may undergo slight deformation, resulting in a weakening of the clamping force, which in turn causes the ballpoint pen tip blank to loosen. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a clamping device for pen tip processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a clamping device for pen tip processing, comprising a placement platform, with a double sprocket shaft rotatably connected to both ends of the side of the placement platform. Two sprockets of the double sprocket shaft are respectively disposed on both sides of the placement platform, and chains meshing with the two double sprocket shafts are provided on both sides of the placement platform. A groove for placing a ballpoint pen tip blank is fixedly installed between the two chains, sliding along the perimeter of the placement platform. A limiting frame for fixing the ballpoint pen tip blank is fixedly installed on the placement platform along the direction of chain movement. A notch is provided on the surface of the limiting frame at the center of the upper surface of the placement platform. Movable frames are slidably installed on both sides of the placement platform at the notch. A vertical electric telescopic rod is fixedly installed through the upper surface of the movable frame. A pressure strip for pressing the ballpoint pen tip blank is fixedly installed at the telescopic end of the vertical electric telescopic rod. A pneumatic push rod is fixedly installed through the side of the movable frame, and a push block for inserting into the inner wall of the groove is fixedly installed at the telescopic end of the pneumatic push rod.

[0006] Preferably, the limiting frame is provided with three baffles, which are respectively located at both ends of the groove and at the middle of the groove surface.

[0007] Preferably, the movable frame moves along the length of the placement platform, and a transverse electric telescopic rod for driving the movable frame to move is fixedly installed on the side of the placement platform.

[0008] Preferably, a base is provided below the placement platform, and an upwardly retractable electric push rod is installed on both sides of the upper surface of the base. The retractable ends of the two electric push rods are fixedly installed with the same rotating ring, which is rotatably installed on the bottom edge of the limiting frame.

[0009] Preferably, an upwardly extending telescopic sleeve is fixedly installed at the center of the upper surface of the base, and a motor is fixedly installed at the telescopic end of the telescopic sleeve, and the motor is fixedly connected to the center of the bottom edge of the limiting frame.

[0010] Preferably, the inner side of the stop bar at the middle position is in clearance fit with the groove bar.

[0011] Preferably, the stop bar is arranged along the direction of chain movement.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a groove to place the ballpoint pen tip blank, and by using the pressure bar in the movable frame set at the notch to press down on the ballpoint pen tip blank to fix its position, and by using the push block set in the movable frame to move and abut against the end of the ballpoint pen tip blank facing away from the drilling device, it can be ensured that the ballpoint pen tip blank will not shake during drilling.

[0014] 2. In this utility model, the extension and retraction of the electric push rod is used to drive the rotating ring to lower the limiting frame and the placement platform to a position offset from the drilling position. Then, the motor drives the limiting frame and the placement platform to rotate horizontally, so as to realize the position of the two ends of the ballpoint pen tip blank is reversed, which makes it easier for the drilling device to drill holes at both ends of the ballpoint pen tip blank. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a clamping device for pen tip processing;

[0016] Figure 2 This utility model proposes a clamping device for pen tip processing. Figure 1 A schematic diagram of the rear view structure;

[0017] Figure 3 This utility model proposes a clamping device for pen tip processing. Figure 2 A schematic diagram of the structure viewed from below;

[0018] Figure 4 This utility model proposes a clamping device for pen tip processing. Figure 2 A top-down sectional view of the structure.

[0019] Legend: 1. Placement platform; 2. Motor; 3. Telescopic sleeve; 4. Electric push rod; 5. Base; 6. Movable frame; 7. Vertical electric telescopic rod; 8. Pneumatic push rod; 9. Push block; 10. Limiting frame; 11. Groove bar; 12. Chain; 13. Double sprocket shaft; 14. Horizontal electric telescopic rod; 15. Rotating ring; 16. Notch; 17. Pressure bar; 18. Stop bar. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4As shown, a clamping device for pen tip processing includes a placement table 1. Two sprocket shafts 13 are rotatably connected to both ends of the side of the placement table 1. Two sprockets of the sprocket shafts 13 are respectively disposed on both sides of the placement table 1, and chains 12 are provided on both sides of the placement table 1 to mesh with the two sprocket shafts 13. A groove 11, which slides along the four sides of the placement table 1 and is used to place a ballpoint pen tip blank, is fixedly installed between the two chains 12. In actual use, a stepper motor is installed on one side of the placement table 1 to drive one of the sprocket shafts 13 to rotate. Under the transmission action of the two chains 12, the other sprocket shaft 13 rotates, thereby achieving the same speed rotation of the chains 12 on the front and rear sides of the placement table 1. Furthermore, in this solution, the groove 11 is fixedly connected to the side of the chain plates of the two chains 12. When a ballpoint pen tip blank is placed on the groove 11, the groove 11 drives the ballpoint pen tip blank to move along the four sides of the placement table 1.

[0023] A limiting frame 10, which is set along the movement direction of the chain 12 and is used to fix the blank of the ballpoint pen tip, is fixedly installed on the placement platform 1. A notch 16 is opened at the center of the upper surface of the placement platform 1 on the surface of the limiting frame 10. The notch 16 is aligned with the drilled hole position. Movable frames 6 are slidably installed on both sides of the placement platform 1 at the position of the notch 16. The movable frames 6 move along the length direction of the placement platform 1. A transverse electric telescopic rod 14 for driving the movement of the movable frames 6 is fixedly installed on the side of the placement platform 1. Figure 1 As shown, when the rear side of the placement platform 1 faces the drilling position, the horizontal electric telescopic rod 14 extends and pushes the movable frame 6 to move away from the notch 16, facilitating the drill bit to drill into one end of the ballpoint pen tip blank. When the placement platform 1 rotates horizontally 180 degrees to reverse the front and rear side positions, the movable frame 6, located between the drilling position and the placement platform 1, moves away from the notch 16 under the pushing action of the horizontal electric telescopic rod 14. A vertical electric telescopic rod 7 is fixedly installed through the upper surface of the movable frame 6. The telescopic end is fixedly installed with a pressure strip 17 for pressing the ballpoint pen tip blank. A pneumatic push rod 8 is fixedly installed through the side of the movable frame 6. The telescopic end of the pneumatic push rod 8 is fixedly installed with a push block 9 for inserting into the inner wall of the groove 11. When drilling the ballpoint pen tip blank, the vertical electric telescopic rod 7 is extended to push the pressure strip 17 down to press the surface of the ballpoint pen tip blank. The pneumatic push rod 8 is extended to push the push block 9 against the end of the ballpoint pen tip blank facing away from the drilling position to prevent the ballpoint pen tip blank from being passively pushed during the drilling process.

[0024] The limiting frame 10 is provided with three baffles 18, which are respectively located at both ends of the groove 11 and at the middle of the surface of the groove 11. The inner side of the baffle 18 at the middle position is in clearance fit with the groove 11. The baffles 18 are set along the movement direction of the chain 12. After the groove 11 moves to a position offset from the notch 16, the baffles 18 at the front and rear sides are used to block the two ends of the groove 11, and the baffle 18 at the middle position is used to block the middle position of the groove 11. This can prevent the ballpoint pen tip blank in the groove 11 from falling out after the groove 11 moves to a position offset from the notch 16.

[0025] A base 5 is provided below the placement platform 1. Electric push rods 4 extend upwards on both sides of the upper surface of the base 5. The same rotating ring 15 is fixedly installed at the telescopic ends of the two electric push rods 4. The rotating ring 15 is rotatably mounted on the bottom edge of the limiting frame 10. An upward telescopic sleeve 3 is fixedly installed at the center of the upper surface of the base 5. A motor 2 is fixedly installed at the telescopic end of the telescopic sleeve 3. The motor 2 is fixedly connected to the center of the bottom edge of the limiting frame 10. The extension and retraction of the electric push rods 4 causes the rotating ring 15 to drive the limiting frame 10 and the placement platform 1 to descend to a position offset from the drilling position. Then, the motor 2 drives the limiting frame 10 and the placement platform 1 to rotate horizontally, achieving the reversal of the positions of the two ends of the ballpoint pen tip blank. Furthermore, the telescopic sleeve 3 in this design allows the motor 2 to rise and fall with the rotating ring 15, and prevents the motor 2's housing from rotating on its own. Therefore, the motor 2 can smoothly drive the limiting frame 10 to rotate the placement platform 1 relative to the rotating ring 15.

[0026] The working principle is as follows: Two chains 12 rotate to make several grooves 11 pass through the notch 16 in sequence. Several ballpoint pen tip blanks are placed into the grooves 11 in sequence at the notch 16. The device is fixed at the drilling position. When drilling, the notch 16 is aligned with the drill bit used for drilling. The vertical electric telescopic rod 7 extends to push the pressure bar 17 down to press the surface of the ballpoint pen tip blank. The pneumatic push rod 8 extends to push the push block 9 to abut the end of the ballpoint pen tip blank facing away from the drilling position. After the ballpoint pen tip blank is drilled, the electric push rod 4 retracts to make the rotating ring 15 drive the limiting frame 10 and the placement platform 1 down to be vertically offset from the drilling position. Then, the motor 2 drives the limiting frame 10 and the placement platform 1 to rotate horizontally to realize the position of the two ends of the ballpoint pen tip blank is reversed. The two pressure bars 17 and the push block 9 alternately press the ballpoint pen tip blank and abut the end of the ballpoint pen tip blank to realize the drilling of the other end of the ballpoint pen tip blank.

[0027] The wiring diagrams of the motor 2, electric push rod 4, vertical electric telescopic rod 7, pneumatic push rod 8, and horizontal electric telescopic rod 14 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the motor 2, electric push rod 4, vertical electric telescopic rod 7, pneumatic push rod 8, and horizontal electric telescopic rod 14 will not be explained in detail.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A clamping device for pen tip processing, comprising a placement table (1), characterized in that: The placement platform (1) has two rotatably connected double sprocket shafts (13) at both ends of its side. The two sprockets of the double sprocket shafts (13) are respectively located on both sides of the placement platform (1), and both sides of the placement platform (1) are provided with chains (12) that mesh with the two double sprocket shafts (13). A groove (11) for placing the ballpoint pen tip blank is fixedly installed between the two chains (12) and slides along the four sides of the placement platform (1). A limiting frame (10) for fixing the ballpoint pen tip blank is fixedly installed on the placement platform (1) along the movement direction of the chains (12). The surface of the frame (10) has a notch (16) at the center of the upper surface of the placement platform (1). Movable frames (6) are slidably installed on both sides of the placement platform (1) at the notch (16). A vertical electric telescopic rod (7) is fixedly installed through the upper surface of the movable frame (6). A pressure strip (17) for pressing the ballpoint pen tip blank is fixedly installed at the telescopic end of the vertical electric telescopic rod (7). A pneumatic push rod (8) is fixedly installed through the side of the movable frame (6). A push block (9) for inserting into the inner wall of the groove (11) is fixedly installed at the telescopic end of the pneumatic push rod (8).

2. The clamping device for pen tip processing according to claim 1, characterized in that: The limiting frame (10) is provided with three baffles (18), which are respectively located at both ends of the groove (11) and at the middle of the surface of the groove (11).

3. The clamping device for pen tip processing according to claim 1, characterized in that: The movable frame (6) moves along the length of the placement platform (1), and a transverse electric telescopic rod (14) for driving the movable frame (6) to move is fixedly installed on the side of the placement platform (1).

4. The clamping device for pen tip processing according to claim 1, characterized in that: A base (5) is provided below the placement platform (1). Electric push rods (4) that extend upwards are installed on both sides of the upper surface of the base (5). The same rotating ring (15) is fixedly installed at the extension end of the two electric push rods (4). The rotating ring (15) is rotatably installed on the bottom edge of the limiting frame (10).

5. The clamping device for pen tip processing according to claim 4, characterized in that: The upper surface of the base (5) is fixedly installed with an upward telescopic sleeve rod (3), and the telescopic end of the telescopic sleeve rod (3) is fixedly installed with a motor (2). The motor (2) is fixedly connected to the bottom center of the limiting frame (10).

6. The clamping device for pen tip processing according to claim 2, characterized in that: The inner side of the stop bar (18) in the middle position is in clearance fit with the groove bar (11).

7. The clamping device for pen tip processing according to claim 6, characterized in that: The stop bar (18) is set along the direction of movement of the chain (12).

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