CN111439058A

CN111439058A - Electric pencil sharpener

Info

Publication number: CN111439058A
Application number: CN202010299555.6A
Authority: CN
Inventors: 娄宗茂
Original assignee: Jinyi Stationery Co ltd
Current assignee: Jinyi Stationery Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-07-24

Abstract

The invention relates to the technical field of pencil sharpeners, and discloses an electric pencil sharpener, which comprises: the shell comprises a cover body, a first shell, a second shell and a base; the cover body, the first shell and the second shell enclose a first accommodating cavity, and the second shell and the base enclose a second accommodating cavity; the pen feeding mechanism is arranged in the first accommodating cavity, and first pen inserting holes are formed in the pen feeding mechanism and the cover body; the cutting mechanism is arranged in the first accommodating cavity and comprises a transmission seat, a tool rest and a hob; the transmission seat is connected below the tool rest and can drive the tool rest; the tool rest is connected with the pen feeding mechanism, and a second pen inserting hole is formed in the tool rest; the power mechanism is arranged in the second accommodating cavity and comprises a transmission assembly, a motor and a battery; the motor can drive the transmission seat through the transmission assembly. The pencil sharpener has the advantages that all the wires and the circuit board are arranged in the second accommodating cavity, so that the wires are not easy to wind in working, and the overall structure is compact in arrangement; the pencil feeding mechanism is smooth in insertion and withdrawal of the pencil, and does not have clamping stagnation and pause feeling.

Description

Electric pencil sharpener

Technical Field

The invention relates to the technical field of pencil sharpeners, in particular to an electric pencil sharpener.

Background

The existing electric pencil sharpener in the market has different forms and various structures, wherein the battery is connected with other power utilization parts in the electric pencil sharpener through the electric wire, the electric wire is generally arranged on the tool bit of the electric pencil sharpener, but under the condition that the electric pencil sharpener is used for a long time in the later period easily due to the layout, the electric wire is wound, and the normal work of the electric pencil sharpener is influenced.

In addition, most of the prior pencil sharpeners are gradually fed by hands, and the feeding speed is not well controlled, so that the using effect is poor, and therefore, an automatic pencil feeding mechanism gradually appears.

The utility model discloses a full-automatic pencil sharpener for publication number "CN 207579409U", including the box body, be equipped with in the box body and reciprocate and pivoted cutter unit and drive cutter unit pivoted drive assembly relatively it, cutter unit includes the knife rest, be equipped with passageway and blade on the knife rest, drive assembly includes the motor, the motor rotates with the knife rest to be connected, the knife rest below is equipped with first start shell fragment and second and starts the shell fragment, first start shell fragment reciprocates along with the knife rest together, the second starts the shell fragment and is located first start shell fragment below and can reciprocate relatively the box body, wear to be equipped with the transfer line on the knife rest, the transfer line upper end is just to the passageway, the transfer line lower extreme contacts with second start the shell fragment, when first start the shell fragment contacts with second start the shell fragment, the motor circular telegram is worked, when first start the shell fragment breaks away from mutually with the. The first starting elastic sheet is controlled to be in contact with or separated from the second starting elastic sheet by the weight of the pen-shaped object, so that the power on and off of the motor are controlled, automatic planing or stopping is realized, and the automation degree is high. According to the automatic pencil sharpener with the layout, the electric wire is positioned in the cutting bin, and the situation of winding and the like easily occurs along with the lengthening of the service time; and the manual pen feeding is difficult to grasp the pen feeding speed, and the user experience feeling needs to be improved.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an electric pencil sharpener which has a compact structure and a reasonable layout and is smooth in pencil feeding and pencil withdrawing.

The technical scheme adopted by the invention for solving the technical problem is to provide an electric pencil sharpener, which comprises the following components:

the shell comprises a cover body, a first shell, a second shell and a base which are arranged in sequence from top to bottom; the cover body, the first shell and the second shell enclose a first accommodating cavity, and the second shell and the base enclose a second accommodating cavity;

the pencil feeding mechanism is arranged in the first accommodating cavity, and first pencil inserting holes for pencils to penetrate through are formed in the pencil feeding mechanism and the cover body;

the cutting mechanism is arranged in the first accommodating cavity, is positioned below the pen feeding mechanism and comprises a transmission seat, a knife rest and a hob arranged on the knife rest; the transmission seat is connected below the tool rest and can drive the tool rest; the tool rest is in transmission connection with the pen feeding mechanism, and a second pen inserting hole is formed in the tool rest; the second pen inserting hole is communicated with the first pen inserting hole;

the power mechanism is arranged in the second accommodating cavity and comprises a transmission assembly, a motor and a battery electrically connected with the motor; the transmission assembly is connected between the motor and the transmission seat, and the motor can drive the transmission seat through the transmission assembly.

Further, the transmission assembly comprises an output gear and a plurality of transmission gears, the output gear is connected below the transmission seat, and the transmission gears are connected between the motor and the output gear.

Further, the transmission gear comprises a first transmission gear and a second transmission gear; the second transmission gear is connected between the first transmission gear and the output gear, and the first transmission gear is connected between the second transmission gear and the motor so as to realize two-stage speed reduction of the motor.

Further, the pen nib thickness adjusting mechanism and the control switch are arranged in the second accommodating cavity; the control switch is arranged below the output gear, and the knife rest is pressed downwards to drive the control switch to start the motor;

the nib thickness adjusting mechanism comprises a transmission rod, a propping piece, a stop block and an adjusting knob; the transmission rod penetrates through the output gear and is positioned below the second pen inserting hole; the abutting piece is arranged between the stop block and the transmission rod, the stop block is provided with an inclined surface, and the abutting piece abuts against the inclined surface; the adjusting knob is connected with the stop block and used for driving the stop block.

Furthermore, a waist hole is formed in the adjusting knob, a convex column extends downwards from the stop block, and the convex column is arranged in the waist hole; when the adjusting knob drives the stop block, the convex column can slide along the waist hole.

Furthermore, the pen feeding mechanism comprises a box body, a first gear shaft, a second gear shaft, a rotary disc and a clamping piece, wherein the first gear shaft, the second gear shaft, the rotary disc and the clamping piece are arranged in the box body;

the first gear shaft and the second gear shaft are oppositely arranged in the box body, and clamping pieces are sleeved on the first gear shaft and the second gear shaft; the rotary table is arranged below the first gear shaft and the second gear shaft and used for driving the first gear shaft and the second gear shaft, and the rotary table is in transmission connection with the tool rest.

Furthermore, the first gear shaft and the second gear shaft are respectively provided with a bevel gear, and the bevel gears are oppositely arranged; the turntable is provided with an inclined block in meshing transmission with the helical gear, and the inclined direction of the inclined block is the same as the direction of the helical gear.

Further, the turntable can drive the first gear shaft to rotate clockwise or anticlockwise; the turntable can drive the second gear shaft to rotate anticlockwise or clockwise; and the turntable can drive the first gear shaft and the second gear shaft to rotate in opposite directions simultaneously.

Furthermore, a fixed seat is arranged below the cover body and is positioned in the first accommodating cavity; the pen feeding mechanism is arranged between the fixed seat and the cover body; the fixed seat is embedded with an inner gear ring, the hob is provided with a hob gear, and the hob gear is meshed with the inner gear ring.

Furthermore, two mounting grooves are formed in the fixing seat, a steel wire is arranged in each of the two mounting grooves, and the two steel wires are arranged in parallel at intervals; an annular groove is formed in the tool rest, and the two steel wires are arranged in the annular groove.

Compared with the prior art, the invention has at least the following beneficial effects:

in the invention, the base and the second shell are encircled to form a second accommodating cavity, the cover body, the first shell and the second shell are encircled to form a first accommodating cavity, all wires and circuit boards in the electric pencil sharpener are arranged in the second accommodating cavity, no wires or circuit boards are arranged in the first accommodating cavity, the work of a knife rest and a hob cutter cannot cause the wire winding and the like, and power is transmitted from bottom to top, thereby simplifying the upper structure and reducing the load of a motor; the second accommodating cavity is separated from the first accommodating cavity, and the cut pencil scraps can fall into the first accommodating cavity, so that the pencil scraps can be poured out conveniently on one hand, and impurity pollution to parts in the second accommodating cavity can be avoided on the other hand; compact structure, overall arrangement set up rationally.

According to the invention, the pencil feeding mechanism is arranged below the cover body, wherein a plurality of inclined blocks with the same inclined direction as the inclined direction of the inclined teeth of the inclined gear are uniformly distributed on the rotary disc, and the inclined blocks and the inclined gear are in meshing transmission, so that when a pencil enters or exits, the pencil can be well ensured to move smoothly, and the retardation is small; first gear shaft and second gear shaft pass through the U-shaped groove on the box body and arc wall location, and not only the convenience during dismouting, assurance both that moreover can be fine motion precision, the noise of during operation is little.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view in full half section;

FIG. 3 is a schematic structural view of the cover and the first housing removed as a whole;

FIG. 4 is a schematic structural view of FIG. 3 with the second housing removed;

FIG. 5 is a schematic view of the pen feeding mechanism and the cutting mechanism of FIG. 3 with the pen feeding mechanism and the cutting mechanism removed;

FIG. 6 is an assembly view of the pen feeding mechanism, the cutting mechanism, the power mechanism and the pen point thickness adjusting mechanism;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

FIG. 8 is a schematic structural view of the pen feeding mechanism (with the upper half case removed);

FIG. 9 is an exploded view of the pen feeding mechanism;

FIG. 10 is a schematic structural view of a turntable;

fig. 11 is a schematic view of the assembly of the holder, wire and blade holder.

In the figure, the position of the upper end of the main shaft,

1. a housing; 10. a cover body; 11. a first housing; 12. a second housing; 13. a base; 14. a first accommodating chamber; 15. a second accommodating chamber; 16. a fixed seat; 17. a steel wire; 101. a first pen insertion hole; 160. an inner gear ring; 161. mounting grooves;

2. a pen feeding mechanism; 20. a box body; 21. a first gear shaft; 22. a second gear shaft; 23. a turntable; 24. a clamping member; 201. a U-shaped groove; 202. an arc-shaped slot; 212. a helical gear; 230. a sloping block; 241. a clamping block; 242. a shaft sleeve;

3. a cutting mechanism; 30. a transmission seat; 31. a tool holder; 32. hobbing cutters; 310. a second pen insertion hole; 311. an annular groove; 321. a hob gear;

4. a power mechanism; 40. a transmission assembly; 41. a motor; 42. a battery; 401. an output gear; 402. a first drive gear; 403. a second transmission gear;

5. a nib thickness adjusting mechanism; 50. a transmission rod; 51. a propping piece; 52. a stopper; 520. a bevel; 521. a convex column; 53. adjusting a knob; 530. a waist hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-2, an electric pencil sharpener includes: the pen comprises a shell 1, a pen feeding mechanism 2, a cutting mechanism 3, a power mechanism 4 and a pen point thickness adjusting mechanism 5.

The shell 1 comprises a cover body 10, a first shell body 11, a second shell body 12 and a base 13 which are arranged from top to bottom in sequence; the cover 10, the first shell 11 and the second shell 12 enclose a first accommodating cavity 14, and the second shell 12 and the base 13 enclose a second accommodating cavity 15; the whole electric pencil sharpener is divided into two main installation spaces, wherein the electric wire and the circuit board in the electric pencil sharpener are all arranged in the second accommodating cavity 15, the electric wire cannot be wound by the operation of the tool rest 31 and the hob 32 in the actual working process, and the weight of the upper part can be reduced and the load of the motor 41 can be reduced in the same way; similarly, the cut pencil scraps can fall into the first accommodating cavity, the first shell 11 and the second shell 12 are directly rotated to separate the first shell and the second shell, the pencil scraps can be quickly poured out, the pencil scraps cannot enter the second accommodating cavity 15, and impurity pollution to parts in the second accommodating cavity cannot be caused; the layout is reasonable.

As shown in fig. 8-10, the pencil feeding mechanism 2 is disposed in the first accommodating cavity 14, and the pencil feeding mechanism 2 and the cover 10 are both provided with a first pencil insertion hole 101 for a pencil to pass through; advance a mechanism 2 and install between lid 10 and fixing base 16, the pencil is cut in advancing the sharpener from first pen inserting port 101 to and cut and go out the sharpener, all can advance a pen automatically and move back through this mechanism 2 that advances, only need change carousel 23 the rotation direction can, improve user's experience and feel, and can not influence the effect of cutting a pencil because of the speed of advancing of the good pencil of control. Specifically, the pencil feeding mechanism 2 comprises a box body 20, and a first gear shaft 21, a second gear shaft 22, a rotary table 23 and a clamping piece 24 which are arranged in the box body 20, wherein the box body 20 is in split type arrangement and comprises an upper half part and a lower half part, the two parts are disassembled and clamped, the box body 20 shields parts in the pencil feeding mechanism 2 to prevent cut pencil scraps from falling into the parts to influence the normal work of the parts in the pencil feeding mechanism, the upper part is provided with arc-shaped grooves 202, specifically four, the lower part is provided with U-shaped grooves 201, the four parts are also four, the arc-shaped grooves 202 and the U-shaped grooves 201 are matched to limit the first gear shaft 21 and the second gear shaft 22, the disassembly and the assembly are very simple, the positioning accuracy of the two parts can be ensured, and the rotation accuracy of the first gear shaft 21 and the second gear shaft 22; the clamping piece 24 is also arranged in a split mode and comprises a shaft sleeve 242 and a clamping block 241 sleeved on the shaft sleeve, and a groove with a V-shaped section is formed in the clamping block 241, so that pencils can be conveniently inserted, fed and withdrawn; the first gear shaft 21 and the second gear shaft 22 are oppositely arranged in the box body 20, and the clamping piece 24 is sleeved on the first gear shaft and the second gear shaft; the rotary disc 23 is located below both the first gear shaft 21 and the second gear shaft 22 and is used for driving both the first gear shaft 21 and the second gear shaft 22, and the rotary disc 23 and the tool rest 31 are in transmission connection, that is, the tool rest 31 can drive the rotary disc 23 to rotate when rotating.

Preferably, the first gear shaft 21 and the second gear shaft 22 are both provided with a bevel gear 212, and the bevel gears 212 are arranged oppositely; the turntable 23 is provided with inclined blocks 230 in meshing transmission with the helical gears 212, and the inclined direction of the inclined blocks 230 is the same as the helical gear direction of the helical gears 212, specifically, the inclined blocks 230 are uniformly distributed on the top of the turntable 23, and the turntable 23 can drive the first gear shaft 21 to rotate clockwise or anticlockwise; the turntable 23 can drive the second gear shaft 22 to rotate anticlockwise or clockwise; and the turntable 23 can drive the first gear shaft 21 and the second gear shaft 22 to rotate in opposite directions simultaneously. In the existing structure, a cylindrical convex column is used for driving a helical gear, although the manufacturing is relatively simple, the clamping stagnation condition often occurs when a pencil is cut off and then is taken out of a pencil sharpener. In the structure, the inclined block 230 in the same inclined direction as the inclined gear 212 is engaged with the inclined gear 212 for transmission, so that smoothness is guaranteed when a pen is fed or a pencil is withdrawn, and the user experience is improved; the pitch between the helical teeth of the helical gear 212 is large on the side close to the helical block 230 and small on the side far from the helical block 230, so that smooth meshing between the helical block 230 and the helical gear 212 is ensured.

As shown in fig. 3-7, the cutting mechanism 3, disposed in the first accommodating chamber 14 and below the pen feeding mechanism 2, includes a transmission seat 30, a tool holder 31, and a hob 32 disposed on the tool holder 31; the driving seat 30 is connected below the tool holder 31 and can drive the tool holder 31; the tool rest 31 is in transmission connection with the pen feeding mechanism 2, and a second pen inserting hole 310 is formed in the tool rest 31; the second pen inserting hole 310 is communicated with the first pen inserting hole 101; specifically, the lower part of the cutting mechanism 3 is connected with the transmission assembly 40, the upper part is connected with the pen feeding mechanism 2, and a fixed seat 16 is arranged below the cover body 10 and is positioned in the first accommodating cavity 14; the pen feeding mechanism 2 is arranged between the fixed seat 16 and the cover body 10; the fixed seat 16 is embedded with an inner gear ring 160, the hob 32 is provided with a hob gear 321, and the hob gear 321 is engaged with the inner gear ring 160. In operation, the transmission seat 30 drives the tool rest 31 to rotate, and since the hob 32 is arranged on the tool rest 31, the hob 32 rotates along with the tool rest 31, the fixed seat 16 is fixedly arranged, the inner gear ring 160 on the fixed seat 16 is also fixedly arranged, and the inner gear ring 160 is meshed with the hob gear 321, so that the hob 32 rotates along with the tool rest 31 to cut pencils.

As shown in fig. 11, two mounting grooves 161 are formed in the fixing base 16, a steel wire 17 is respectively disposed in each of the two mounting grooves 161, and the two steel wires 17 are disposed in parallel at intervals; the annular groove 310 is formed in the tool rest 31, the two steel wires 17 are arranged in the annular groove 310, the pencil is sharpened, when pencil scraps need to be poured out, the cover body 10 and the first shell 11 can be rotated to be separated, the fixing seat 16 fixed on the cover body 10 and the pencil feeding mechanism 2 are pulled out together along with the pulling-out of the cover body 10, the tool rest 31 is also pulled out together under the driving of the steel wires 17, so that the tool rest 31 and the hob 32 are taken out together, the tool rest 31 and the hob 32 are not limited, the pencil scraps are conveniently poured out, and the pencil scraps are clean and thorough without residues. The hob 32 and the knife rest 31 are frequently replaced parts in the pencil sharpener, when the replacement is needed, only downward pulling is needed, the steel wire 17 is separated from the mounting groove 161 on the knife rest 31, the knife rest 31 is detached, the rapid tool replacement can be realized, and the structural design is ingenious.

As shown in fig. 1-2 and 6-7, the power mechanism 4, disposed in the second accommodating cavity 15, includes a transmission assembly 40, a motor 41 and a battery 42 electrically connected to the motor 41; the transmission assembly 40 is connected between the motor 41 and the transmission base 30, and the motor 41 can drive the transmission base 30 through the transmission assembly 40. Specifically, the transmission assembly 40 includes an output gear 401 and a plurality of transmission gears, the output gear 401 is connected below the transmission base 30, and the plurality of transmission gears are connected between the motor 41 and the output gear 401. The transmission gears comprise a first transmission gear 402 and a second transmission gear 403; the second transmission gear 403 is connected between the first transmission gear 402 and the output gear 401, the first transmission gear 402 is connected between the second transmission gear 403 and the motor 41 to realize secondary speed reduction of the motor, the motor 41 is driven by the battery 42 to rotate quickly, and when pencil sharpening is performed, the speed is not too high, and core breaking is easy to occur on the contrary, so that secondary speed reduction is realized by the rotation of the motor 41 through the first transmission gear 402, the second transmission gear 403 and the output gear 401, the transmission seat 30 is driven, the tool rest 31 is driven, and the hob 32 is driven to sharpen the pencil, safety and reliability are realized, and the possibility of core breaking is low.

Preferably, the electric pencil sharpener further comprises a pen point thickness adjusting mechanism 5 and a control switch (not labeled in the figure) for controlling the motor 41, both arranged in the second accommodating chamber 15; the control switch is arranged below the output gear 401, and the knife rest 31 is pressed downwards to drive the control switch to start the motor 41; when a pencil is inserted, the pencil presses down the tool rest 31, the output gear 401 moves downwards, the control switch is triggered, the control switch is conducted, the motor 41 is started, and pencil sharpening is performed. The pen point thickness adjusting mechanism 5 comprises a transmission rod 50, a propping piece 51, a stop block 52 and an adjusting knob 53; the transmission rod 50 is arranged in the output gear 401 in a penetrating manner and is positioned below the second pen inserting hole 310; the abutting piece 51 is arranged between the stop block 52 and the transmission rod 50, the stop block 52 is provided with an inclined plane 520, and the abutting piece 51 abuts against the inclined plane 520; the adjusting knob 53 is connected to the stopper 52 and is used to drive the stopper 52. When the adjusting knob 53 drives the abutting piece 51 to abut against the higher position of the inclined plane 520 on the stop block 52, the sharpened pen point of the pencil is relatively thick, and when the adjusting knob 53 drives the abutting piece 51 to abut against the lower position of the inclined plane 520 on the stop block 52, the sharpened pen point of the pencil is relatively thin, different pen point thickness degrees are selected according to the actual requirements of users, and the arrangement of the inclined plane 520 realizes stepless adjustment theoretically. A waist hole 530 is formed in the adjusting knob 53, a convex column 521 extends downwards from the stopper 52, and the convex column 521 is arranged in the waist hole 530; when the adjusting knob 53 drives the stopper 52, the convex column 521 can slide along the waist hole 530, and the rotation of the adjusting knob 53 can be converted into the sliding of the stopper 52, so that the abutting piece 51 abuts against different positions of the inclined plane; the rotation of the adjustment knob 53 is also converted into the sliding of the boss 521 in the waist hole 530.

In the working process, a pencil is inserted from the first pencil inserting hole 101, enters the second pencil inserting hole of the tool rest 31 through the pencil feeding mechanism 2, and drives the output gear 401 to move downwards when the tool rest 31 is pressed by the pencil, so that the control switch is triggered, the control switch is conducted, and the motor 41 rotates; the rotation of the motor 41 realizes the two-stage speed reduction through the first transmission gear 402, the second transmission gear 401 and the output gear 401, the output gear 401 drives the transmission seat 30 to rotate, the transmission seat 30 drives the tool holder 31 to rotate, the hob 32 also rotates along with the tool holder 31, the hob gear 321 is meshed with the inner gear ring 161 on the fixed seat 16, the hob rotates to cut a pencil, when the tool holder 31 rotates, the turntable 23 is also driven to rotate, the inclined block 230 on the turntable 23 drives the first gear shaft 21 and the second gear shaft 22 to rotate, the pencil is fed in, when the pencil point of the pencil reaches a preset length, the motor can rotate reversely, the pencil feeding mechanism 2 feeds out the pencil, and the pencil cutting is completed.

According to the electric pencil sharpener, all the wires and the circuit board are arranged in the second accommodating cavity, so that the wires are not easy to wind in the working process, and the whole structure is compact and reasonable in arrangement; the pencil feeding mechanism is smooth in insertion and withdrawal of the pencil, and does not have clamping stagnation and pause feeling.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. An electric pencil sharpener, comprising:

2. The electric sharpener of claim 1, wherein said drive assembly includes an output gear and a plurality of drive gears, said output gear being connected below said drive mount, said plurality of drive gears being connected between said motor and said output gear.

3. The electric sharpener of claim 2 wherein said drive gear comprises a first drive gear and a second drive gear; the second transmission gear is connected between the first transmission gear and the output gear, and the first transmission gear is connected between the second transmission gear and the motor so as to realize two-stage speed reduction of the motor.

4. The electric sharpener of claim 2 further comprising a nib thickness adjustment mechanism and a control switch for controlling the motor, both disposed in the second receiving chamber; the control switch is arranged below the output gear, and the knife rest is pressed downwards to drive the control switch to start the motor;

5. The electric sharpener of claim 4, wherein said adjustment knob defines a waist opening, said stop extending downwardly to define a post, said post being disposed in said waist opening; when the adjusting knob drives the stop block, the convex column can slide along the waist hole.

6. The electric pencil sharpener of claim 1, wherein the pencil feeding mechanism comprises a box body, and a first gear shaft, a second gear shaft, a rotating disc and a clamping piece which are arranged in the box body;

the first gear shaft and the second gear shaft are oppositely arranged in the box body, and the clamping piece is sleeved on both the first gear shaft and the second gear shaft; the rotary table is arranged below the first gear shaft and the second gear shaft and used for driving the first gear shaft and the second gear shaft, and the rotary table is in transmission connection with the tool rest.

7. The electric sharpener of claim 6, wherein each of the first gear shaft and the second gear shaft has a bevel gear, and the bevel gears are disposed opposite to each other; the turntable is provided with an inclined block in meshing transmission with the helical gear, and the inclined direction of the inclined block is the same as the direction of the helical gear.

8. The electric pencil sharpener of claim 6 or 7, wherein the rotary disc drives the first gear shaft to rotate clockwise or counterclockwise; the turntable can drive the second gear shaft to rotate anticlockwise or clockwise; and the turntable can drive the first gear shaft and the second gear shaft to rotate in opposite directions simultaneously.

9. The electric pencil sharpener according to claim 1 or 4, wherein a fixing seat is arranged below the cover body and is positioned in the first accommodating cavity; the pen feeding mechanism is arranged between the fixed seat and the cover body; the fixed seat is embedded with an inner gear ring, the hob is provided with a hob gear, and the hob gear is meshed with the inner gear ring.

10. The electric pencil sharpener of claim 8, wherein the holder has two mounting slots, each of the two mounting slots having a steel wire disposed therein, the two steel wires being spaced apart in parallel; an annular groove is formed in the tool rest, and the two steel wires are arranged in the annular groove.