CN216733681U

CN216733681U - Trigger starting mechanism of electric pencil sharpener

Info

Publication number: CN216733681U
Application number: CN202123013202.4U
Authority: CN
Inventors: 郑高伟; 曹锋; 张俊峰; 郑崇志
Original assignee: Ningbo Tiantian Stationery Co ltd
Current assignee: Ningbo Tiantian Stationery Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-06-14
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses an electronic trigger actuating mechanism who cuts a ware, including cutting a ware main part, but cut a ware main part and be equipped with the clamp plate and can rotate and axial displacement's knife rest, the clamp plate middle part is equipped with the switch, but knife rest quantity is two at least, clamp plate and all knife rest laminating. The utility model has simple and practical structure and strong universality, and can be applied to various automatic penknife devices; only one switch is arranged, so that the switch cost is relatively low.

Description

Trigger starting mechanism of electric pencil sharpener

Technical Field

The utility model belongs to the technical field of the automatic ware of cutting, especially, relate to electronic trigger starting mechanism who cuts a ware.

Background

The automatic pencil sharpener is a pencil sharpening tool, is made of high-quality plastics, is fashionable and exquisite in shape, can be used as ornaments and is necessary stationery for pupils. The automatic pencil sharpener comprises a knife rest, a dust collection bin, a bin cover, a motor, a switch and other parts, wherein the knife rest sharpens a pencil, the residual pencil dust falls into the dust collection bin of the automatic pencil sharpener, the pencil dust can be poured out after the bin cover is opened, and the knife rest can be taken out for cleaning.

The working principle of the tool rest is as follows: the pencil sharpener is characterized in that the tool rest is connected with the motor, when the end part of the pencil is inserted into the tool rest downwards from the pencil inlet, the tool rest moves downwards to trigger the switch to be electrified, the motor starts to drive the tool rest to rotate to sharpen the pencil, and the pencil is lifted upwards to be separated from the tool rest after being sharpened. Some automatic pencil sharpeners are provided with two or more knife rests (different knife rests with different pencil sharpening inlet sizes), and each knife rest corresponds to a switch, so that the total number of switches of the automatic pencil sharpeners is two or more. I have designed an automatic pencil sharpener with only one switch to reduce cost.

Disclosure of Invention

The utility model aims to solve the technical problem that a trigger starting mechanism of electronic ware of cutting is provided, the switch is set up the clamp plate middle part, no matter which knife rest runs into the clamp plate and all can trigger the switch circular telegram and make the knife rest rotate and cut the pencil.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the trigger starting mechanism of the electric pencil sharpener comprises a pencil sharpener main body, wherein the pencil sharpener main body is provided with a pressing plate and knife rests which can rotate and axially move, a switch is arranged in the middle of the pressing plate, the number of the knife rests is at least two, and the pressing plate is attached to all the knife rests.

As the utility model discloses further improve: the pressing plate is provided with an elastic piece which pushes the pressing plate to the tool rest. After cutting, the pencil is lifted upwards to leave the tool rest, and the tool rest needs to be moved upwards to cut off the switch, so that the tool rest stops rotating; the switch also has thrust for jacking up the tool rest, but the thrust has small strength, and the service life of the switch can be seriously reduced after long-term use; an additional elastic member is required to provide an upward elastic force, so that the pressing plate and the knife holder move upward to turn off the switch.

As the utility model discloses further improve: the edge of the pressing plate is provided with an upper fixing column for fixing the upper end of the elastic piece. The elastic component can adopt common spring, and the spring coil cover of spring is established in last fixed column periphery, and the elastic component upper end has just been fixed so.

As the utility model discloses further improve: and the position of the pressing plate close to the upper fixing column is provided with a limiting rib. When the end part of the pencil is inserted into the tool rest downwards, the tool rest moves downwards to trigger the switch to be electrified, and the tool rest starts to rotate to cut the pencil; however, a user can press the pencil downwards too hard, the switch is easily damaged due to too large pressure of the pressing plate, the pressing plate is provided with a limiting rib, when the limiting rib touches the inner wall of the pencil sharpener main body, the knife rest and the pressing plate cannot move downwards continuously, and the switch is just triggered by the pressing plate (meanwhile, the switch is in a proper stroke range), so that the limiting rib protects the switch; in addition, the limiting ribs can also protect the elastic piece, and the elastic piece is prevented from losing resilience after being excessively compressed.

As the utility model discloses further improve: the pencil sharpener body is provided with a bottom cover, the pressing plate is movably arranged on the bottom cover, and the elastic piece is positioned between the pressing plate and the bottom cover. A movable gap is reserved between the bottom cover and the pencil sharpener main body, and the pressure plate, the elastic piece and the switch are all positioned in the movable gap; the bottom cover also has the function of covering the bottom of the pencil sharpener main body to prevent external dust and sundries from entering the pencil sharpener main body.

As the utility model discloses further improve: the bottom be equipped with down the fixed column, the elastic component lower extreme cover establish the periphery at the fixed column down. The elastic piece can adopt common spring, and the spring coil cover of spring is established at lower fixed column, and the elastic piece lower extreme has just been fixed so.

As the utility model discloses further improve: the bottom cover is provided with a triggering column which can collide with the switch. The trigger post is a little higher than bottom lower extreme face, and the trigger post is "ten" font structure, and the back is moved down to clamp plate, switch, and the switch can touch the trigger post.

As the utility model discloses further improve: the middle part of the pressing plate is provided with a fixing groove, the switch is fixed in the fixing groove, the fixing groove is provided with a baffle attached to the side face of the switch, and the baffle is provided with a barb capable of clamping the switch. The switch is placed in the fixed slot, and the switch side is cliied to the baffle, and switch up end pastes fixed slot inner wall, and the barb blocks terminal surface under the switch, therefore the switch just fixes at the clamp plate middle part and can not loosen and take off.

As the utility model discloses further improve: the number of the tool rests and the number of the elastic pieces are two, and the two elastic pieces are respectively positioned at two ends of the pressing plate. General automatic pencil sharpener sets up two knife rests of variation in size, can cut two kinds of pencils of equidimension respectively, and two knife rests are located the clamp plate both ends directly over respectively, and two elastic component are located two knife rests, clamp plate both ends directly under respectively, and the switch is located between two elastic component, and the pencil cuts the back, and the elastic component can give clamp plate, the ascending thrust of knife rest to make the clamp plate keep the horizontality.

As the utility model discloses further improve: the pencil sharpener main body is provided with a motor, and the motor is connected with the knife rest through a gear set; the pencil sharpener main body is also provided with a movable hole and a pencil feeding hole, the movable hole and the knife rest are the same in number and corresponding in position, and the knife rest is movably arranged in the movable hole. The gear set comprises a plurality of gears which are in different specifications and meshed one by one; the motor shaft carries out high-speed rotation, but the moment of torsion is less, and pivot department has set up the output tooth, and the knife rest lower extreme has set up input tooth (input tooth and knife rest synchronous revolution, both are a whole), and output tooth, gear train, input tooth mesh in proper order, follow the law of conservation of energy and derive: the rotation speed of the tool holder is low and the rotation torque is larger than that of the motor rotating shaft, so that the tool holder has enough rotation torque to cut the pencil. The pencil sharpener is arranged in the movable hole and can rotate in the movable direction (the upper end and the lower end of the pencil sharpener are provided with the pillars which are rotatably connected with the pencil sharpener main body), so that the pencil sharpener can rotate and move up and down, and a pencil enters the knife rest from the pencil inlet hole to be sharpened.

The utility model has the advantages of simple and practical structure, strong universality and application to various automatic pencil sharpeners; only one switch is arranged, so that the switch cost is relatively low.

The utility model discloses a theory of operation is: the switch is set to the clamp plate middle part, and the user cuts a pencil with a knife rest at every turn, and when the knife rest that uses moved down, clamp plate one end also moved down thereby makes the clamp plate be in the tilt state (the clamp plate initial condition is horizontal placement), then the switch can touch the ware main part inner wall of cutting a pencil at the in-process that moves down, so the switch can be triggered the circular telegram thereby make the knife rest rotate and cut the pencil.

Drawings

Fig. 1 is an exploded view of the present invention at a first viewing angle;

fig. 2 is an exploded view of the present invention at a second viewing angle;

fig. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is a schematic view of the assembly of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-4: trigger actuating mechanism of electronic ware of cutting a pencil, including cutting a ware main part 100, but cut a ware main part 100 and be equipped with clamp plate 5 and can rotate and axial displacement's

knife rest

1, 5 middle parts of clamp plate are equipped with switch 7, and knife rest 1 quantity is two at least, and clamp plate 5 and all knife rest 1 laminating.

The pressure plate 5 is provided with a spring 6 that urges the pressure plate 5 towards the tool holder 1.

The edge of the pressing plate 5 is provided with an upper fixing column 52 for fixing the upper end of the elastic piece 6.

The pressing plate 5 is provided with a limiting rib 51 at a position close to the upper fixing column 52.

The pencil sharpener body 100 is provided with a bottom cover 4, a pressing plate 5 is movably arranged on the bottom cover 4, and an elastic piece 6 is positioned between the pressing plate 5 and the bottom cover 4.

The bottom cover 4 is provided with a lower fixing column 41, and the lower end of the elastic piece 6 is sleeved on the periphery of the lower fixing column 41.

The bottom cover 4 is provided with a trigger post 42 which can collide with the switch 7.

The middle part of the pressure plate 5 is provided with a fixing groove 53, the switch 7 is fixed in the fixing groove 53, the fixing groove 53 is provided with a baffle 55 attached to the side surface of the switch 7, and the baffle 55 is provided with a barb 54 capable of clamping the switch 7.

The number of the tool holders 1 and the number of the elastic pieces 6 are two, and the two elastic pieces 6 are respectively positioned at two ends of the pressing plate 5.

The pencil sharpener main body 100 is provided with a motor 2, and the motor 2 is connected with a tool rest 1 through a gear set 3; the pencil sharpener main body 100 is also provided with a movable hole 101 and a pencil inlet hole 102, the movable hole 101 and the tool rest 1 are the same in number and corresponding in position, and the tool rest 1 is movably arranged in the movable hole 101. An output tooth 21 is arranged on a rotating shaft of the motor 2, an input tooth 11 is arranged at the lower end of the tool rest 1, and the output tooth 21, the gear set 3 and the input tooth 11 are meshed in sequence; after the tool holder 1 is moved, the input teeth 11 also move downwards, and actually the input teeth 11 touch the pressure plate 5 downwards to trigger the switch 7 to be powered on.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The trigger starting mechanism of the electric pencil sharpener comprises a pencil sharpener main body and is characterized in that the pencil sharpener main body is provided with a pressing plate and knife rests which can rotate and axially move, a switch is arranged in the middle of the pressing plate, the number of the knife rests is at least two, and the pressing plate is attached to all the knife rests.

2. The trigger actuator for an electric sharpener of claim 1, wherein said pressure plate has a spring member for urging the pressure plate toward the blade carrier.

3. The trigger actuator of an electric sharpener as claimed in claim 2, wherein the edge of said pressure plate is provided with an upper fixing post for fixing the upper end of the elastic member.

4. The trigger starting mechanism of the electric pencil sharpener of claim 3, wherein the pressure plate is provided with a limiting rib at a position close to the upper fixing column.

5. The trigger actuator of an electric sharpener of claim 2, wherein said sharpener body has a bottom cap, said pressure plate is movably mounted on said bottom cap, and said resilient member is located between said pressure plate and said bottom cap.

6. The trigger actuator of an electric pencil sharpener of claim 5, wherein the bottom cap has a lower fixing post, and the lower end of the elastic member is sleeved on the periphery of the lower fixing post.

7. The trigger actuator of an electric sharpener of claim 6, wherein said bottom cap has a trigger post for engaging the switch.

8. The trigger actuator of an electric pencil sharpener as claimed in claim 1, wherein a fixing groove is formed in the middle of the pressing plate, the switch is fixed in the fixing groove, a blocking plate attached to the side surface of the switch is arranged in the fixing groove, and a barb for catching the switch is arranged on the blocking plate.

9. The trigger actuator of an electric sharpener of claim 1 wherein said number of blade holders and said number of spring members are both two, said two spring members being located at each end of said pressure plate.

10. The trigger actuator of an electric sharpener of claim 1, wherein said sharpener body has a motor, said motor being connected to said blade holder by a gear train; the pencil sharpener main body is also provided with a movable hole and a pencil feeding hole, the movable hole and the knife rest are the same in number and corresponding in position, and the knife rest is movably arranged in the movable hole.