A deburring device for wood pencil production

Abstract

The utility model belongs to pencil processing technical field, specifically speaking is a kind of deburring device for wooden pencil production, including base, the upper surface of the sliding plate is fixedly connected with dog drive mechanism, dog drive mechanism side wall is connected with small bevel gear, small bevel gear is rotatably connected with big bevel gear, through dog drive mechanism drive small bevel gear rotation, and then small bevel gear and chuck body inside big bevel gear do meshing motion, make power transmission to big bevel gear, simultaneously, the Archimedes spiral groove on the side wall of big bevel gear synchronous rotation with gear, make the structure design of groove wall and the sliding fit of first connecting block, realized the function that sanding bar is aimed at pencil deburring polishing intensity is completely consistent, effectively solved the problem that pencil deburring is uneven due to intensity.

Description

Technical Field

[0001] This utility model belongs to the field of pencil processing technology, specifically a deburring device for the production of wooden pencils. Background Technology

[0002] A pencil is a writing and drawing tool with a wooden barrel and a graphite core. Its ease of use, low cost, and the ability to adjust the lead thickness with a sharpener or knife have made it an indispensable tool for learning, work, and creative pursuits. In daily life, whether it's taking notes in class, drafting plans in the office, or making shopping lists at home, pencils are the preferred writing tool in many scenarios due to their erasability and ease of correction, making them closely integrated into people's daily lives.

[0003] In the process of making pencils, it is necessary to remove the wooden splinters attached to the unpainted pencils. The operators will first arrange the cut pencils neatly, and then use sandpaper to sand the surface of each pencil one by one. When sanding, the pencil must be rotated at a uniform speed, and the sandpaper must be pressed against the pencil body to deal with the cut surfaces, the joints of the pencil, and the burrs formed by the raised wood grain. The pressure needs to be repeatedly controlled in this process to avoid damaging the pencil or sanding unevenly.

[0004] Currently, the traditional manual deburring method is usually inefficient and difficult to adapt to large-scale production. Operators hold sandpaper and polish each pencil one by one, and use scrapers to deal with stubborn burrs. This can lead to some burrs not being removed completely, and some being over-polished, causing the pencil barrel to deform. Relying on workers' experience to control the polishing force and speed can result in large fluctuations in the surface roughness of pencil barrels in the same batch.

[0005] Therefore, this utility model provides a deburring device for the production of wooden pencils. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The deburring device for producing wooden pencils according to this utility model includes a base, a first drive motor protective box fixedly connected to the upper surface of the base, a first drive motor fixedly connected inside the first drive motor protective box, a threaded rod rotatably connected to the output end of the first drive motor, a sliding plate sleeved on the outer wall of the threaded rod, a chuck drive mechanism fixedly connected to the upper surface of the sliding plate, a small bevel gear connected to the side wall of the chuck drive mechanism, the small bevel gear connected to the inside of the chuck body, a large bevel gear rotatably connected to the small bevel gear, an Archimedean spiral groove fixedly connected to the side wall of the large bevel gear, a first connecting block slidably connected to the side wall of the Archimedean spiral groove, and the first connecting block slidably engages with the groove wall of the Archimedean spiral groove, and a sanding rod fixedly connected to the other end of the first connecting block.

[0008] Preferably, a chassis is fixedly connected to the upper surface of the base, and the chassis and the sliding plate are arranged in a corresponding manner. A turntable is rotatably connected to one end of the chassis, a first connecting arm is rotatably connected to one end of the turntable, a second connecting arm is rotatably connected to the other end of the first connecting arm, a forearm is rotatably connected to the other end of the second connecting arm, a claw connecting block is fixedly connected to the other end of the claw connecting block, and a set of clamping plates is connected to the other end of the claw connecting block.

[0009] Preferably, a vacuum suction mechanism is fixedly connected to the side wall of the chuck body, and the vacuum suction mechanism is sleeved outside the frosting rod. A vacuum tube is fixedly connected to the side wall of the vacuum suction mechanism, and a dust collection box is fixedly connected to the other end of the vacuum tube. A handle is fixedly connected to the side wall of the dust collection box.

[0010] Preferably, a second drive motor protective box is fixedly connected to the upper surface of the sliding plate, a second drive motor is fixedly connected inside the second drive motor protective box, and a first connecting block is rotatably connected to the output end of the second drive motor.

[0011] Preferably, limiting plates are fixed to both sides of the threaded rod, and the limiting plates are parallel to the threaded rod.

[0012] Preferably, an anti-slip pad is fixed to the inner side of the clamping plate.

[0013] Preferably, buffer blocks are fixed at both ends of the threaded rod, and the buffer blocks are located inside the limiting plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] The present invention discloses a deburring device for producing wooden pencils. The output of a first drive motor drives a threaded rod to rotate, causing a sliding plate on the threaded rod to move horizontally. A chuck drive mechanism above the sliding plate drives a small bevel gear to rotate, which in turn meshes with a large bevel gear inside the chuck, transmitting power to the large bevel gear. Simultaneously, the Archimedean spiral groove on the side wall of the large bevel gear rotates synchronously with the gear. Through a sliding fit between the groove wall and the first connecting block, the rotational motion is converted into radial movement of the first connecting block. This achieves a completely consistent deburring force from the abrasive rods on the pencils. Furthermore, it can drive multiple sets of abrasive rods to synchronously and evenly contract or expand towards the center, adapting to pencils of different diameters and effectively solving the problem of uneven force during pencil deburring. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 yes Figure 1 Enlarged view of a section at point A in the middle;

[0021] Figure 4 yes Figure 2 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Base; 2. First drive motor; 21. Threaded rod; 22. Limiting plate; 23. Sliding plate; 24. First drive motor protective box; 25. Buffer block; 3. Chuck body; 31. Claw drive mechanism; 32. First connecting block; 4. Vacuum suction mechanism; 5. Chassis; 51. Turntable; 52. First connecting arm; 53. Second connecting arm; 54. Forearm; 55. Clamping plate; 56. Anti-slip mat; 57. Claw connecting block; 6. Handle; 61. Dust collection box; 7. Second drive motor protective box; 71. Second drive motor; 72. Frosting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 2 As shown, the device includes a base 1, with a first drive motor protective housing 24 fixedly attached to the upper surface of the base 1. A first drive motor 2 is fixedly attached inside the first drive motor protective housing 24. A threaded rod 21 is rotatably connected to the output end of the first drive motor 2. A sliding plate 23 is sleeved on the outer wall of the threaded rod 21. A chuck drive mechanism 31 is fixedly attached to the upper surface of the sliding plate 23. A small bevel gear is connected to the side wall of the chuck drive mechanism 31. The small bevel gear is connected to the inside of the chuck body 3. A large bevel gear is rotatably connected to the small bevel gear. An Archimedean spiral groove is fixedly attached to the side wall of the large bevel gear. A first connecting block 32 is slidably connected to the side wall of the Archimedean spiral groove, and the first connecting block 32 slides in contact with the groove wall of the Archimedean spiral groove. A sanding rod 72 is fixedly attached to the other end of the first connecting block 32. During operation, when it is necessary to remove burrs from the wooden pencil, the first connecting block 72 is used to... The output end of the drive motor 2 drives the threaded rod 21 to rotate, and the sliding plate 23 on the threaded rod 21 can move horizontally. The small bevel gear is driven to rotate by the pawl drive mechanism 31 above the sliding plate 23. The small bevel gear meshes with the large bevel gear inside the chuck body 3, so that the power is transmitted to the large bevel gear. At the same time, the Archimedes spiral groove on the side wall of the large bevel gear rotates synchronously with the gear. Through the sliding fit between the groove wall and the first connecting block 32, the rotational motion is converted into the radial movement of the first connecting block 32. This achieves the function of the abrasive rod 72 having a completely consistent grinding force for deburring pencils. At the same time, it can drive multiple sets of abrasive rods 72 to synchronously and evenly contract or open towards the center, which can be adapted to pencils of different diameters and effectively solves the problem of uneven force when deburring pencils.

[0026] Furthermore, such as Figures 1 to 3As shown, a base plate 5 is fixedly attached to the upper surface of the base 1, and the base plate 5 is correspondingly arranged with the sliding plate 23. A turntable 51 is rotatably connected to one end of the base plate 5, and a first connecting arm 52 is rotatably connected to one end of the turntable 51. A second connecting arm 53 is rotatably connected to the other end of the first connecting arm 52, and a forearm 54 is rotatably connected to the other end of the second connecting arm 53. A claw connecting block 57 is fixedly attached to the other end of the forearm 54, and a set of clamping plates 55 is connected to the other end of the claw connecting block 57. During operation, when the wooden pencil to be deburred is fed to the position of the sanding rod 72, the turntable 51 is rotated by the base plate 5, which in turn drives the first connecting arm 52. 52, the first connecting arm 52 further pushes the second connecting arm 53, and then the linkage of the two arms transmits the motion to the end forearm 54. Then, the forearm 54 drives the clamping plate 55 on the claw connecting block 57 to move closer to the pencil until the clamping plate 55 is in contact with the surface of the pencil shaft, thereby achieving stable clamping of the pencil. The abrasive rod 72 contacts the burrs on the pencil surface through reciprocating motion and polishes them smooth. After the deburring is completed, the turntable 51 rotates in the opposite direction, driving the connecting arm to release the clamping plate 55. This can effectively ensure the stability of clamping and avoid random errors caused by manual operation.

[0027] Furthermore, such as Figures 1 to 2 As shown, a vacuum cleaning mechanism 4 is fixedly attached to the side wall of the chuck body 3, and the vacuum cleaning mechanism 4 is sleeved outside the sanding rod 72. A vacuum tube is fixedly attached to the side wall of the vacuum cleaning mechanism 4, and a dust collection box 61 is fixedly attached to the other end of the vacuum tube. A handle 6 is fixedly attached to the side wall of the dust collection box 61. During operation, when it is necessary to absorb wood chips generated during sanding, the vacuum cleaning mechanism 4 is turned on, and air flows from the outside with high air pressure to the inside of the mechanism with low air pressure. During the flow, surrounding wood chips and dust are brought in together. 4 is in close contact with the working area of ​​the abrasive rod 72, ensuring that the debris is immediately adsorbed by negative pressure after it is generated, effectively preventing the debris from spreading. When the debris adsorbed by the vacuum dust collection mechanism 4 enters the dust collection box 61 with the airflow, the dust collection box 61 collects the debris. When the debris inside the handle 6 accumulates to a certain amount, the operator can quickly disassemble the handle 6 through the dust collection box 61 and then pour out the waste inside. After cleaning, it can be quickly installed, effectively reducing the cleaning labor intensity of the operator and avoiding production interruption.

[0028] Furthermore, such as Figures 1 to 2As shown, a second drive motor protective box 7 is fixedly connected to the upper surface of the sliding plate 23. A second drive motor 71 is fixedly connected inside the second drive motor protective box 7. The output end of the second drive motor 71 is rotatably connected to a first connecting block 32. When working, after the second drive motor 71 is turned on, the rotational motion is transmitted to the first connecting block 32 through the output end of the abrasive rod 72. Then, the first connecting block 32 transmits power to the abrasive rod 72, so that the rotational motion of the second drive motor 71 is converted into the high-speed rotation of the abrasive rod 72, thereby realizing the sanding and deburring function of the abrasive rod 72. By adjusting the rotational speed, it can be used to sand wooden pen barrels of different hardness. The second drive motor protective box 7 outside the second drive motor 71 can effectively isolate sawdust and dust, thereby reducing the failure rate of the second drive motor 71 and effectively extending the service life of the abrasive rod 72.

[0029] Furthermore, such as Figures 1 to 2 As shown, limiting plates 22 are fixed to both sides of the threaded rod 21, and the limiting plates 22 are parallel to the threaded rod 21. During operation, when the sliding plate 23 moves along the threaded rod 21, the limiting plates 22 restrict the movement direction of the sliding plate 23, so that the sliding plate 23 can only move radially along the threaded rod 21, effectively preventing the sliding plate 23 from deviating.

[0030] Furthermore, such as Figure 3 As shown, an anti-slip pad 56 is fixed to the inner side of the clamping plate 55. During operation, when the clamping plate 55 holds the pencil, the anti-slip pad 56 on the inner side of the clamping plate 55 increases the contact friction between the clamping plate 55 and the pencil surface. As a result, the anti-slip pad 56 can tightly wrap the pencil barrel, effectively preventing the pencil from slipping or shifting due to the rotational force generated by the sanding rod 72 or the external force brought by the movement of the sliding plate during the deburring process. This effectively improves the clamping stability, ensures consistent deburring force, and protects the wooden pencil barrel through flexible contact. At the same time, the anti-slip pad material is wear-resistant and easy to replace, resulting in low maintenance costs for long-term use.

[0031] Furthermore, such as Figures 1 to 4 As shown, buffer blocks 25 are fixed to both ends of the threaded rod 21, and the buffer blocks 25 are located inside the limiting plate 22. During operation, when the threaded rod 21 is driven to rotate forward and backward by the first drive motor 2, the sliding plate 23 may collide with the inner wall of the limiting plate 22 during the threaded sliding process on the threaded rod 21, which may damage the claw drive mechanism 31 and the second drive motor 71. By setting the buffer blocks 25 inside the limiting plate 22, the collision between the sliding plate 23 and the limiting plate 22 can be buffered, thereby effectively avoiding the collision between the claw drive mechanism 31 and the second drive motor 71, thus protecting the claw drive mechanism 31 and the second drive motor 71.

[0032] Working principle: During operation, when it is necessary to remove burrs from wooden pencils, the output end of the first drive motor 2 drives the threaded rod 21 to rotate, thereby enabling the sliding plate 23 on the threaded rod 21 to move horizontally. The pawl drive mechanism 31 above the sliding plate 23 drives the small bevel gear to rotate, which in turn meshes with the large bevel gear inside the chuck body 3, transmitting power to the large bevel gear. Simultaneously, the Archimedean spiral groove on the side wall of the large bevel gear rotates synchronously with the gear. Through the sliding fit between the groove wall and the first connecting block 32, the rotational motion is converted into radial movement of the first connecting block 32, achieving a completely consistent grinding force from the abrasive rod 72 on the pencil. It can also drive multiple sets of abrasive rods 72 synchronously and evenly. The abrasive rod contracts or expands evenly towards the center, accommodating pencils of different diameters and effectively solving the problem of uneven force during pencil deburring. When the wooden pencil to be deburred is fed to the abrasive rod 72, the base 5 drives the turntable 51 to rotate, which in turn drives the first connecting arm 52, causing the first connecting arm 52 to further push the second connecting arm 53. The linkage of the two arms transmits the motion to the forearm 54 at the end. Then, the forearm 54 drives the clamping plate 55 on the claw connecting block 57 to move towards the pencil until the clamping plate 55 is in contact with the surface of the pencil shaft, thus achieving stable clamping of the pencil. The abrasive rod 72 contacts the burrs on the pencil surface through reciprocating motion, smoothing them out. After deburring is completed, the turntable 51 rotates in the opposite direction, driving the connecting arm... The clamping plate 55 is loosened, effectively ensuring clamping stability and avoiding random errors caused by manual operation. When wood chips generated during sanding need to be absorbed, the vacuum suction mechanism 4 is activated. Air flows from the high-pressure outside environment to the low-pressure inside the mechanism, carrying surrounding wood chips and dust. Because the vacuum suction mechanism 4 is in close contact with the working area of ​​the sanding rod 72, the chips are immediately absorbed by the negative pressure, effectively preventing their spread. The chips absorbed by the vacuum suction mechanism 4 enter the dust collection box 61 with the airflow, where they are collected. When a certain amount of chips accumulate inside the handle 6, the operator can quickly remove the handle 6 through the dust collection box 61. After emptying the internal waste and completing the cleaning, the device can be quickly installed, effectively reducing the cleaning workload for operators and avoiding production interruptions. When the second drive motor 71 is turned on, the rotational motion is transmitted to the first connecting block 32 through the output end of the abrasive rod 72. The first connecting block 32 then transmits power to the abrasive rod 72, converting the rotational motion of the second drive motor 71 into the high-speed rotation of the abrasive rod 72, thereby achieving the sanding and deburring function of the abrasive rod 72. By adjusting the rotational speed, it can sand wooden pen barrels of different hardnesses. The protective box 7 of the second drive motor 71 effectively isolates sawdust and dust, thereby reducing the failure rate of the second drive motor 71 and effectively extending the service life of the abrasive rod 72.When the sliding plate 23 moves along the threaded rod 21, the limiting plate 22 restricts the direction of movement of the sliding plate 23, ensuring that the sliding plate 23 can only move radially along the threaded rod 21. This effectively prevents the sliding plate 23 from shifting. When the clamping plate 55 holds the pencil, the anti-slip pad 56 on the inner side of the clamping plate 55 increases the contact friction between the clamping plate 55 and the pencil surface. Consequently, the anti-slip pad 56 can tightly wrap around the pencil barrel, effectively preventing the pencil from slipping or shifting during the deburring process due to the rotational force generated by the sanding rod 72 or the external force brought by the movement of the sliding plate. This effectively improves the clamping stability, ensures consistent deburring force, and protects the wooden pencil barrel through flexible contact. Meanwhile, the anti-slip mat material is wear-resistant and easy to replace, resulting in low long-term maintenance costs. When the first drive motor 2 drives the threaded rod 21 to rotate in both directions, the sliding plate 23 may collide with the inner wall of the limiting plate 22 during the threaded sliding process on the threaded rod 21, potentially damaging the claw drive mechanism 31 and the second drive motor 71. By setting a buffer block 25 inside the limiting plate 22, the impact between the sliding plate 23 and the limiting plate 22 can be buffered, effectively preventing the claw drive mechanism 31 and the second drive motor 71 from being impacted, thus protecting the claw drive mechanism 31 and the second drive motor 71.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A deburring device for wood pencil production comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a first drive motor protective box (24), and the first drive motor (2) is fixedly connected inside the first drive motor protective box (24). The output end of the first drive motor (2) is rotatably connected to a threaded rod (21). The outer wall of the threaded rod (21) is fitted with a sliding plate (23). The upper surface of the sliding plate (23) is fixedly connected to a chuck drive mechanism (31). The side wall of the chuck drive mechanism (31) is connected to a small bevel gear. The small bevel gear is connected inside the chuck body (3). The small bevel gear is rotatably connected to a large bevel gear. The side wall of the large bevel gear is fixedly connected to an Archimedes spiral groove. The side wall of the Archimedes spiral groove is slidably connected to a first connecting block (32), and the first connecting block (32) is slidably engaged with the groove wall of the Archimedes spiral groove. The other end of the first connecting block (32) is fixedly connected to a sanding rod (72).

2. A deburring device for wood pencil production according to claim 1, characterized in that: A base plate (5) is fixedly connected to the upper surface of the base (1), and the base plate (5) and the sliding plate (23) are arranged in a corresponding manner. A turntable (51) is rotatably connected to one end of the base plate (5), a first connecting arm (52) is rotatably connected to one end of the turntable (51), a second connecting arm (53) is rotatably connected to the other end of the first connecting arm (52), a forearm (54) is rotatably connected to the other end of the second connecting arm (53), a claw connecting block (57) is fixedly connected to the other end of the claw connecting block (57), and a set of clamps (55) is connected to the other end of the claw connecting block (57).

3. The deburring device for wood pencil production according to claim 1, characterized in that: A vacuum suction mechanism (4) is fixedly connected to the side wall of the chuck body (3), and the vacuum suction mechanism (4) is sleeved outside the abrasive rod (72). A vacuum tube is fixedly connected to the side wall of the vacuum suction mechanism (4), and a dust collection box (61) is fixedly connected to the other end of the vacuum tube. A handle (6) is fixedly connected to the side wall of the dust collection box (61).

4. The deburring device for wood pencil production according to claim 3, characterized in that: The upper surface of the sliding plate (23) is fixedly connected to a second drive motor protective box (7), and a second drive motor (71) is fixedly connected inside the second drive motor protective box (7). The output end of the second drive motor (71) is rotatably connected to a first connecting block (32).

5. The deburring device for wood pencil production according to claim 1, characterized in that: Limiting plates (22) are fixedly connected to both sides of the threaded rod (21), and the limiting plates (22) are parallel to the threaded rod (21).

6. The deburring device for wood pencil production according to claim 2, characterized in that: An anti-slip pad (56) is fixed to the inner side of the clamp (55).

7. The deburring device for wood pencil production according to claim 1, characterized in that: The threaded rod (21) has buffer blocks (25) fixed at both ends, and the buffer blocks (25) are located inside the limiting plate (22).

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