Sharpening mechanism

Abstract

The utility model relates to a sharpening mechanism, in particular to the field of pencil sharpening machines, and adopts the technical scheme that the sharpening mechanism comprises a feeding barrel and a material storage box, a conveying assembly is mounted at the lower end of the feeding barrel, a material receiving box is arranged at the bottom of the conveying assembly, a guide assembly is mounted on one side of the conveying assembly, and the guide assembly is connected with the material storage box. The automatic pencil feeding and discharging device has the advantages that pencils can be automatically fed and discharged conveniently, when the groove A containing the pencils rotates to the lower portion and is aligned with the discharging port, the pencils in the groove A fall to the inner side of the feeding port B, at the moment, the pencils can fall into the groove B through the feeding port B, and the pencils can be conveniently discharged. At the moment, the groove B containing the pencil is aligned with the through hole, then the pushing air cylinder can push the piston push rod to penetrate through the through hole, the piston push rod is inserted into the inner side of the groove B to push the pencil to be inserted into the guiding assembly and the sharpening device, and finally the sharpening device can drive the blade in the inner cavity to rotate to sharpen the end of the pencil.

Description

Technical Field

[0001] The utility model relates to the field of pencil sharpeners, in particular to a sharpening mechanism. Background Art

[0002] A pencil is a type of pen used for writing and sketching. The main part of the pencil is graphite. During the production process, the pencil sometimes needs to be sharpened.

[0003] In the prior art, most of the pencil ends are sharpened using pencil sharpeners. However, during the operation, the pencil is mostly inserted into the pencil sharpener manually. After the pencil sharpener is aligned with the pencil end, the sharpened pencil is pulled out of the pencil sharpener. This method is not only time-consuming and labor-intensive, but also not conducive to mass production of sharpened pencils.

[0004] Therefore, it is necessary to invent a sharpening mechanism. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sharpening mechanism, comprising a feeding barrel and a storage box, the storage box is installed at the upper end of the feeding barrel, a conveying assembly is installed at the lower end of the feeding barrel, a material receiving box is arranged at the bottom of the conveying assembly, a guide assembly is installed at one side of the conveying assembly, a sharpener is installed at the side of the guide assembly away from the conveying assembly, a pushing cylinder is arranged at the side of the conveying assembly away from the guide assembly, and a driving motor is installed at one end of the feeding barrel and the conveying assembly;

[0007] A piston push rod is installed at the output end of the push cylinder.

[0008] Based on the above characteristics: multiple pencils are placed in advance in the storage box, which has a hollow structure with openings at both ends. Then the pencils will fall into the inside of the feeding tube one by one, and then the feeding tube can convey the pencils one by one to the inside of the conveying assembly. At this time, the pushing cylinder can use the piston push rod to push the pencil so that one end of the pencil is inserted into the inside of the guide assembly. Then the pushing cylinder can pull back the piston push rod to disengage from the conveying assembly. Then the guide assembly can drive the pencil to move so that the pencil is inserted into the inside of the sharpener. Finally, the sharpener can drive the blade in the inner cavity to rotate to sharpen the end of the pencil. After the pencil is sharpened, the guide assembly can drive the pencil to move back and disengage from the sharpener. When all the pencils are sent to the inside of the conveying assembly, the pencils fall into the receiving box for collection.

[0009] Preferably, a feed port A is provided at the upper end of the feed barrel, a discharge port is provided at the lower end of the feed barrel, a turntable A is installed in the inner cavity of the feed barrel, and a groove A is provided on the surface of the turntable A.

[0010] Based on the above features: When the groove A on the surface of the turntable A aligns with the feed port A, a pencil in the storage bin will fall into the inner side of the groove A through the feed port A. As the turntable A rotates, when the groove A containing the pencil rotates to the lower part and aligns with the discharge port, the pencil in the groove A will fall into the interior of the conveying assembly.

[0011] Preferably, the conveying assembly includes a protective housing and a turntable B installed in the middle of the protective housing, and grooves B are formed on the surface of the turntable B.

[0012] Based on the above features: When the groove B on the surface of the turntable B rotates to the upper part, it can catch the falling pencil. When the groove B containing the pencil rotates to the lower part, the pencil can fall out of the groove B and into the receiving box.

[0013] Preferably, a feed port B is provided at the upper end of the protective housing, a discharge port is provided at the lower end of the protective housing, protective baffles are symmetrically installed on both sides of the upper end of the feed port B, a first rotating shaft is installed between the turntable A and the turntable B, and a through hole is provided at the upper end of one side of the protective housing.

[0014] Based on the above features: When the turntable B aligns with the feed port B, the pencil can fall into the groove B through the feed port B. At this time, the groove B containing the pencil will align with the through hole. Subsequently, the pushing cylinder can push the piston push rod through the through hole so that the piston push rod inserts into the inner side of the groove B to push the pencil into the interior of the guiding assembly. At this time, since the piston push rod inserts into the through hole, the turntable B will not rotate. When the pencil is sharpened and is pushed back into the groove B by the guiding assembly, the piston push rod will also disengage from the through hole. At this time, the turntable B will be driven to rotate. When the groove B containing the pencil rotates to the lower part and aligns with the discharge port, the pencil can fall into the interior of the receiving box through the discharge port for collection.

[0015] Preferably, belt wheels are installed at one ends of the two first rotating shafts, and the belt wheels are connected to the driving motor through a belt.

[0016] Based on the above features: Two driving motors are provided and can respectively drive the turntable A and the turntable B to rotate independently.

[0017] Preferably, the guiding assembly includes a housing and a first guiding wheel and a second guiding wheel symmetrically installed in the inner cavity of the housing, and round holes are provided in the middle of both sides of the housing.

[0018] Based on the above features: The pencil is inserted into the inner side of the housing through the round hole. At this time, the first guiding wheel and the second guiding wheel can clamp and limit the pencil on both sides.

[0019] Preferably, a second rotating shaft is installed between the two ends of the second guiding wheel and the first guiding wheel. A first gear and a second gear are provided at the lower end of the second rotating shaft, and a rotating motor is installed at the lower end of the second gear.

[0020] Based on the above features: When starting the rotating motor, the rotating motor can drive the second gear to rotate. At this time, the second gear will engage with the first gear, causing the second guide wheel and the first guide wheel to rotate in opposite directions, so that the pencil clamped in the middle can be conveyed forward or backward.

[0021] The beneficial effects of the present utility model are as follows:

[0022] 1. It is convenient for automatic feeding and discharging of pencils. Multiple pencils are pre-placed inside the storage box. When the groove A on the surface of turntable A aligns with the feeding port A, one pencil inside the storage box will fall into the inner side of groove A through the feeding port A. As turntable A rotates, when the groove A containing the pencil rotates to the lower part and aligns with the discharging port, the pencil in this groove A will fall into the inner side of the feeding port B. At this time, the pencil can fall into groove B through the feeding port B. Then, the groove B containing the pencil will align with the through hole. Subsequently, the pushing cylinder can push the piston push rod through the through hole, so that the piston push rod is inserted into the inner side of groove B to push the pencil into the inside of the guiding component and the sharpener. Finally, the sharpener can drive the blade in the inner cavity to rotate to sharpen the end of the pencil, without the need for manual repeated insertion and extraction of the pencil.

[0023] 2. When the pencil is inserted into the guiding component, the rotating motor can drive the second gear to rotate. At this time, the second gear will engage with the first gear, causing the second guide wheel and the first guide wheel to rotate in opposite directions, so that the pencil clamped in the middle can be conveyed forward or backward. When the pencil is sharpened and pushed back into the inside of groove B by the guiding component, the piston push rod will also disengage from the through hole. At this time, turntable B will be driven to rotate. When the groove B containing the pencil rotates to the lower part and aligns with the discharging port, the pencil can fall into the inside of the receiving box through the discharging port for collection. Description of the Drawings

[0024] Figure 1 Schematic diagram of the overall structure of a sharpening mechanism provided by the present utility model;

[0025] Figure 2 Internal side view of the feeding cylinder and the conveying component of a sharpening mechanism provided by the present utility model;

[0026] Figure 3 Internal side view of the guiding component of a sharpening mechanism provided by the present utility model;

[0027] Figure 4 A sharpening mechanism provided by the present utility model Figure 1 Schematic diagram of the partial enlarged structure at A in the above.

[0028] In the figure: 1. Feeding cylinder; 11. Feeding port A; 12. Discharging port; 13. Turntable A; 14. Groove A; 2. Storage bin; 3. Conveying assembly; 31. Protective housing; 311. Feeding port B; 312. Discharge port; 313. Protective baffle; 314. First rotating shaft; 3141. Pulley; 315. Through hole; 32. Turntable B; 33. Groove B; 4. Receiving box; 5. Guiding assembly; 51. Machine housing; 52. First guiding wheel; 53. Second guiding wheel; 531. Second rotating shaft; 532. First gear; 533. Second gear; 534. Rotating motor; 6. Sharpening device; 7. Pushing cylinder; 71. Piston push rod; 8. Driving motor. Detailed implementation manner

[0029] The preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0030] Referring to the attached Figures 1-4 A sharpening mechanism provided by the present utility model includes a feeding cylinder 1 and a storage bin 2. The storage bin 2 is installed at the upper end of the feeding cylinder 1. A conveying assembly 3 is installed at the lower end of the feeding cylinder 1. A receiving box 4 is arranged at the bottom of the conveying assembly 3. A guiding assembly 5 is installed on one side of the conveying assembly 3. A sharpening device 6 (similar to an electric pencil sharpener in the prior art, with inclined blades arranged on its inner wall, which can sharpen one end of the inserted pen rod) is installed on the side of the guiding assembly 5 away from the conveying assembly 3. A pushing cylinder 7 is arranged on the side of the conveying assembly 3 away from the guiding assembly 5. A driving motor 8 is installed at one end of the feeding cylinder 1 and the conveying assembly 3;

[0031] A piston push rod 71 is installed at the output end of the pushing cylinder 7.

[0032] Multiple pencils are pre-placed inside the storage bin 2. The storage bin 2 has a hollow structure with openings at both ends. Subsequently, the pencils will fall into the inner side of the feeding cylinder 1 one by one. Then, the feeding cylinder 1 can convey the pencils into the inner side of the conveying assembly 3 one by one. At this time, the pushing cylinder 7 can use the piston push rod 71 to push the pencils, so that one end of the pencils is inserted into the guiding assembly 5. Subsequently, the pushing cylinder 7 can pull back the piston push rod 71 to disengage from the conveying assembly 3. Then, the guiding assembly 5 can drive the pencils to move, so that the pencils are inserted into the inner side of the sharpening device 6. Finally, the sharpening device 6 can drive the blades in the inner cavity to rotate to sharpen the ends of the pencils. After the pencils are sharpened, the guiding assembly 5 can drive the pencils to move back to disengage from the sharpening device 6. When all the pencils are sent into the inner side of the conveying assembly 3, the pencils will fall into the receiving box 4 for collection.

[0033] Preferably, a feeding port A 11 is opened at the upper end of the feeding cylinder 1, a discharging port 12 is opened at the lower end of the feeding cylinder 1, a turntable A 13 is installed inside the feeding cylinder 1, and grooves A 14 are arranged on the surface of the turntable A 13.

[0034] The driving motor 8 can drive the turntable A13 to rotate through a belt and a pulley. When the groove A14 on the surface of the turntable A13 aligns with the feeding port A11, a pencil in the storage bin 2 will fall into the inner side of the groove A14 through the feeding port A11. As the turntable A13 rotates, when the groove A14 containing the pencil rotates to the lower part and aligns with the discharging port 12, the pencil in the groove A14 will fall into the inside of the conveying assembly 3.

[0035] Preferably, the conveying assembly 3 includes a protective housing 31 and a turntable B32 installed in the middle of the protective housing 31. Grooves B33 are formed on the surface of the turntable B32.

[0036] The turntable B32 and the grooves B33 inside the protective housing 31 have the same structure as the turntable A13 and the grooves A14 in the feeding cylinder 1. When the groove B33 on the surface of the turntable B32 rotates to the upper part, it can catch the falling pencil. When the groove B33 containing the pencil rotates to the lower part, the pencil can fall out of the groove B33 and into the receiving box 4.

[0037] Preferably, a feeding port B311 is formed at the upper end of the protective housing 31, and a discharging port 312 is formed at the lower end of the protective housing 31. Protective baffles 313 are symmetrically installed on both sides of the upper end of the feeding port B311. A first rotating shaft 314 is installed between the turntable A13 and the turntable B32. A through hole 315 is formed at the upper end of one side of the protective housing 31.

[0038] The protective baffles 313 can block and limit the falling pencil, facilitating the pencil falling from the discharging port 12 to fall into the inside of the feeding port B311. When the turntable B32 aligns with the feeding port B311, the pencil can fall into the groove B33 through the feeding port B311. At this time, the groove B33 containing the pencil will align with the through hole 315. Subsequently, the pushing cylinder 7 can push the piston push rod 71 through the through hole 315, so that the piston push rod 71 is inserted into the inner side of the groove B33 to push the pencil into the inside of the guiding assembly 5. At this time, since the piston push rod 71 is inserted into the through hole 315, the turntable B32 will not rotate. When the pencil is sharpened and pushed back into the groove B33 by the guiding assembly 5, the piston push rod 71 will also disengage from the through hole 315. At this time, the turntable B32 will be driven to rotate. When the groove B33 containing the pencil rotates to the lower part and aligns with the discharging port 312, the pencil can fall into the inside of the receiving box 4 through the discharging port 312 for collection.

[0039] Preferably, pulley wheels 3141 are installed at one ends of the two first rotating shafts 314, and the pulley wheels 3141 are connected to the driving motor 8 through a belt strip.

[0040] Two driving motors 8 are provided and can respectively drive the turntable A13 and the turntable B32 to rotate independently.

[0041] Preferably, the guiding component 5 includes a casing 51, and a first guiding wheel 52 and a second guiding wheel 53 symmetrically installed in the inner cavity of the casing 51. Circular holes are formed in the middle of both sides of the casing 51.

[0042] The pencil is inserted into the inner side of the casing 51 through the circular hole. At this time, the first guiding wheel 52 and the second guiding wheel 53 can clamp and limit the pencil on both sides.

[0043] Preferably, a second rotating shaft 531 is installed in the middle between the two ends of the second guiding wheel 53 and the first guiding wheel 52. A first gear 532 and a second gear 533 are arranged at the lower end of the second rotating shaft 531, and a rotating motor 534 is installed at the lower end of the second gear 533.

[0044] The first gear 532 is below the second guiding wheel 53, and the second gear 533 is below the first guiding wheel 52. When the rotating motor 534 is started, the rotating motor 534 can drive the second gear 533 to rotate. At this time, the second gear 533 will mesh with the first gear 532, causing the second guiding wheel 53 and the first guiding wheel 52 to rotate in opposite directions, so that the pencil clamped in the middle can be conveyed forward or backward.

[0045] The using process of the utility model is as follows: Multiple pencils are placed in advance inside the storage box 2. The storage box 2 has a hollow structure with openings at both ends. Subsequently, the pencils will drop into the inner side of the feeding cylinder 1 one by one. When the groove A14 on the surface of the turntable A13 aligns with the feeding port A11, one pencil in the storage box 2 will fall into the inner side of the groove A14 through the feeding port A11. As the turntable A13 rotates, when the groove A14 containing the pencil rotates to the lower part and aligns with the discharging port 12, the pencil in the groove A14 will fall into the conveying component 3. When the turntable B32 aligns with the feeding port B311, the pencil can fall into the groove B33 through the feeding port B311. At this time, the groove B33 containing the pencil will align with the through hole 315. Subsequently, the pushing cylinder 7 can push the piston push rod 71 through the through hole 315, so that the piston push rod 71 is inserted into the inner side of the groove B33 to push the pencil into the guiding component 5. Then, the rotating motor 534 is started. The rotating motor 534 can drive the second gear 533 to rotate. At this time, the second gear 533 will mesh with the first gear 532, causing the second guiding wheel 53 and the first guiding wheel 52 to rotate in opposite directions, so that the pencil clamped in the middle can be conveyed forward or backward, and the pencil is inserted into the sharpener 6. Finally, the sharpener 6 can drive the blade in the inner cavity to rotate to sharpen the end of the pencil. When the pencil is sharpened and is pushed back into the groove B33 by the guiding component 5 again, the piston push rod 71 will also disengage from the through hole 315. At this time, the turntable B32 will be driven to rotate. When the groove B33 containing the pencil rotates to the lower part and aligns with the discharging port 312, the pencil can fall into the receiving box 4 through the discharging port 312 for collection.

[0046] The above are only the preferred embodiments of the present utility model. Any person skilled in the art may modify the present utility model by using the technical solutions described above or modify it into equivalent technical solutions. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.

Claims

1. A sharpening mechanism, comprising a feeding barrel (1) and a storage box (2), wherein the storage box (2) is mounted on the upper end of the feeding barrel (1), characterized in that: A conveying assembly (3) is installed at the lower end of the feeding barrel (1), a receiving box (4) is arranged at the bottom of the conveying assembly (3), a guide assembly (5) is installed on one side of the conveying assembly (3), a sharpener (6) is installed on the side of the guide assembly (5) away from the conveying assembly (3), a pushing cylinder (7) is arranged on the side of the conveying assembly (3) away from the guide assembly (5), and a driving motor (8) is installed at one end of the feeding barrel (1) and the conveying assembly (3); A piston push rod (71) is installed at the output end of the push cylinder (7).

2. A sharpening mechanism according to claim 1, characterized in that: The upper end of the feeding barrel (1) is provided with a feeding port A (11), the lower end of the feeding barrel (1) is provided with a feeding port (12), a rotating disk A (13) is installed in the inner cavity of the feeding barrel (1), and a groove A (14) is provided on the surface of the rotating disk A (13).

3. A sharpening mechanism according to claim 2, characterized in that: The conveying assembly (3) comprises a protective shell (31) and a turntable B (32) installed in the middle of the protective shell (31), and a groove B (33) is provided on the surface of the turntable B (32).

4. A sharpening mechanism according to claim 3, characterized in that: A feed port B (311) is provided at the upper end of the protective shell (31), a discharge port (312) is provided at the lower end of the protective shell (31), protective baffles (313) are symmetrically installed on both sides of the upper end of the feed port B (311), a first rotating shaft (314) is installed between the turntable A (13) and the turntable B (32), and a through hole (315) is provided at the upper end of one side of the protective shell (31).

5. A sharpening mechanism according to claim 4, characterized in that: A pulley (3141) is installed at one end of the two first rotating shafts (314), and the pulley (3141) is connected to the driving motor (8) through a belt strip.

6. A sharpening mechanism according to claim 1, characterized in that: The guide assembly (5) comprises a housing (51) and a first guide wheel (52) and a second guide wheel (53) symmetrically mounted in the inner cavity of the housing (51); circular holes are provided in the middle of two sides of the housing (51).

7. A sharpening mechanism according to claim 6, characterized in that: A second rotating shaft (531) is installed between the two ends of the second guide wheel (53) and the first guide wheel (52); a first gear (532) and a second gear (533) are arranged at the lower end of the second rotating shaft (531); and a rotating motor (534) is installed at the lower end of the second gear (533).

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