CN209888498U

CN209888498U - Time delay structure of electric pencil sharpener

Info

Publication number: CN209888498U
Application number: CN201920582031.0U
Authority: CN
Inventors: 高建永
Original assignee: Ningbo Yunfeng Stationery Co Ltd
Current assignee: Ningbo Yunfeng Stationery Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-03
Anticipated expiration: 2029-04-25

Abstract

The utility model provides an electronic time delay structure who cuts a ware, including the hobbing cutter, the hob head, touch pole and motor, the hob head is used for installing the hobbing cutter and has cuts a hole, it has the mouth of cutting a hole to cut the pore wall that a hole is close to the hobbing cutter, the hob head still has and is located the opening of cutting a hole below, the upper end of touch pole is inserted and is established on the hob head and can remove in the opening of hob head, motor drive hobbing cutter rotates, still include push switch, circuit board and elastic component, push switch just links to each other with the circuit board with the lower extreme cooperation of touch pole, the circuit board has the circuit module of control motor time delay outage time and links to each other with the motor, the elastic component supports touch pole and makes touch pole upwards keep breaking away push switch. When the pencil is cut to a certain degree, the pencil lead touches the touch rod downwards, the touch rod moves downwards to trigger the micro switch, the circuit module on the circuit board starts timing, the circuit module is adopted for delaying time, and the whole volume is small.

Description

Time delay structure of electric pencil sharpener

Technical Field

The utility model relates to an electronic ware technical field that cuts especially relates to an electronic time delay structure who cuts a ware.

Background

With the development of technology, electric pencils have emerged. The electric pencil sharpener cuts a pencil by rotating the hob, and because a cutting surface is rough, sawdust, core scraps and the like are easy to remain, and the pencil sharpening operation is needed to polish and sharpen the cutting surface. The optical pen operation means that after the pencil lead is cut to a position, the time delay structure is touched, the time delay structure is used for carrying out time delay power-off on the motor, and in the time delay process, the hob is kept rotating to polish the cutting surface.

For example, chinese utility model patent with application No. CN201621219926.0 (publication No. CN206336034U) discloses an "electric pencil sharpener", which comprises a housing, a knife rest, a gear, a motor gear and a support, wherein the knife rest is arranged in the housing and located at the upper end of the gear, the axis of the gear rotating shaft and the axis of the central shaft of the knife rest are on the same straight line, a hob is arranged on the knife rest, the knife rest and the hob do planetary cutting motion around a pencil, the knife rest is provided with a pencil hole for inserting the pencil, a pencil blocking block is further arranged in the knife rest, the motor gear is located on the output shaft of the motor, the gear is in transmission connection with the motor gear, and the gear and the motor gear are both located on.

The utility model provides an electronic ware of cutting that simple structure and reliability are high, the mechanical cooperation through delay shaft, delay gear and delay rack comes the time delay, and the whole volume ratio of mechanical delay structure is great, is not convenient for cut the miniaturization of ware.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, a delay structure of electronic ware of cutting that the volume is less is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electronic time delay structure who cuts a ware, includes hobbing cutter, hob head, touch pole and motor, and the hob head is used for installing the hobbing cutter and has cuts a hole, cuts a hole and has a mouth of cutting a hole near the pore wall of hobbing cutter, and the hob head still has and is located the opening of cutting a hole below, and the upper end of touch pole is inserted and is established on the hob head and can remove in the opening of hob head, and motor drive hobbing cutter rotates its characterized in that:

the touch switch is matched with the lower end of the touch rod and is connected with the circuit board, the circuit board is provided with a circuit module for controlling the delay power-off time of the motor and is connected with the motor, and the elastic piece supports the touch rod to enable the touch rod to keep the trend of disconnecting the touch switch upwards.

In order to facilitate flexible adjustment during installation, the pen stopping device further comprises a pen stopping block, the pen stopping block is arranged in the opening in a sliding mode, and the lower end face of the pen stopping block is abutted to the upper end of the touch rod.

In order to properly delay the power-off time of the motor, the circuit module is a power-off module which sets the delayed power-off time to be 3 seconds.

In order to stop the motor in time when other parts fail, the circuit module is a timing module which sets the total time from the start of rotation to the stop of rotation of the motor to be 20 seconds.

In order to support the hob head and the elastic piece, the support frame is used for supporting the hob head, the support frame is provided with a through hole for the touch rod to move up and down, the inner wall of the through hole is provided with an annular boss, the outer wall of the touch rod is provided with an annular convex edge matched with the annular boss, the upper end of the elastic piece is abutted against the lower end face of the annular convex edge, and the lower end of the elastic piece is abutted against the upper end face of the annular boss.

The touch rod can have multiple structures, preferably, the touch rod comprises a first touch rod and a second touch rod which are vertically abutted, the first touch rod is located on the upper portion and abutted against the pen stopping block, and the second touch rod is located on the lower portion and matched with the press switch. Thus being convenient for flexible adjustment during installation.

The push switch may have various structures, and preferably, the push switch is a micro switch.

The elastic member may have various structures, and preferably, the elastic member is a spring or an elastic block or an elastic sheet.

Compared with the prior art, the utility model has the advantages of: through setting up push switch, circuit board and elastic component, the circuit board has the circuit module of control motor time delay outage time, adopt circuit module time delay, compare and adopt mechanical time delay structure, whole volume is less, after the pencil cuts to the certain degree, the refill is touching the touch rod downwards, the touch rod downstream triggers push switch, circuit module on the circuit board begins the timing, in a segment time of setting for, the motor still rotates, consequently, the pencil position no longer moves down during, the hobbing cutter continues to rotate and carries out the light pen processing to the pencil, circuit module set for the time delay time arrive the back, motor stall, the hobbing cutter stall, the pencil cuts the end.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention installed in a housing;

FIG. 2 is a schematic view in the bottom direction of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view of FIG. 1;

fig. 4 is a schematic diagram of an embodiment of the present invention;

fig. 5 is a schematic view of fig. 4 with the support bracket removed.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

For convenience of description, hereinafter, "up" and "down" refer to respective orientations when operated by a user.

As shown in fig. 3 to 5, the delay structure of the electric pencil sharpener comprises a hob 1, a hob holder 2, a pencil block 3, a touch rod 4, a motor 5, a push switch 6, a circuit board 7, an elastic element 8, a support frame 9 and other main components.

Wherein hob head 2 is used for installing hobbing cutter 1 and has and cuts a hole 21, cuts a hole 21 and has and cuts a mouth 22 near the pore wall of hobbing cutter 1, hob head 2 still has and is located and cuts an opening 23 of hole 21 below, the upper end of touch bar 4 is inserted and is established on hob head 2 and can move in hob head 2's opening 23, hinders a 3 slip settings of pencil piece in this opening 23, hinders the lower terminal surface of pencil piece 3 and offsets with the upper end of touch bar 4, motor 5 drive hobbing cutter 1 rotates.

The push switch 6 can be a microswitch, the push switch 6 is matched with the lower end of the touch rod 4 and is connected with the circuit board 7, the circuit board 7 is provided with a circuit module for controlling the delayed power-off time of the motor 5 and is connected with the motor 5, and the circuit module comprises a power-off module for setting the delayed power-off time to be 3 seconds and a timing module for setting the total time from the start of rotation to the stop of rotation of the motor 5 to be 20 seconds; the elastic member 8 supports the touch lever 4 so that the touch lever 4 keeps a tendency to turn off the push switch 6 upward. Preferably, the elastic member 8 is a spring.

The supporting frame 9 is used for supporting the hob head 2, the supporting frame 9 is provided with a through hole 91 for the touch rod 4 to move up and down, the inner wall of the through hole 91 is provided with an annular boss 92, the outer wall of the touch rod 4 is provided with an annular convex edge 41 matched with the annular boss 92, the upper end of the elastic part 8 is abutted against the lower end face of the annular convex edge 41, and the lower end of the elastic part 8 is abutted against the upper end face of the annular boss 92.

The touch bar 4 comprises a first touch bar 42 and a second touch bar 43 which are vertically abutted, the first touch bar 42 is positioned on the upper portion and abutted against the pen stopping block 3, and the second touch bar 43 is positioned on the lower portion and matched with the push switch 6.

Referring to fig. 1 to 3, a schematic diagram of the time delay structure of the electric pencil sharpener installed in the housing 10 is shown, the housing 10 includes an upper housing and a lower housing which can be closed, and the electric pencil sharpener can be powered by a battery or an external socket.

In the embodiment, the use principle of the time delay structure of the electric pencil sharpener is as follows:

when cutting is needed, a power switch is turned on, a pencil is placed into the pencil sharpening hole 21, the upper end of the pencil is pressed, and the pencil is cut by the hob 1;

when the pencil core reaches a set length, the pencil core touches the pencil blocking block 3 downwards, the pencil blocking block 3 presses the touch rod 4 downwards, the touch rod 4 moves downwards to trigger the press switch 6, the circuit module on the circuit board 7 starts timing, the motor 5 still rotates within a set short period of time, therefore, the pencil position does not move downwards, the hob 1 continues rotating to perform pencil polishing treatment on the pencil, after the delay time set by the power-off module reaches 3 seconds, the motor 5 stops rotating, the hob 1 stops rotating, and the pencil cutting is finished; in addition, the timer module sets the total time from the start of rotation to the stop of rotation of the motor 5 to 20 seconds.

Claims

1. The utility model provides an electronic time delay structure who cuts a ware, including hobbing cutter (1), hob frame (2), touch pole (4) and motor (5), hob frame (2) are used for installing hobbing cutter (1) and have and cut a hole (21), the hole wall that cuts a hole (21) and be close to hobbing cutter (1) has and cuts a mouth (22), hob frame (2) still have and are located and cut opening (23) of a hole (21) below, the upper end of touch pole (4) is inserted and is established on hob frame (2) and can remove in opening (23) of hob frame (2), motor (5) drive hobbing cutter (1) rotate, its characterized in that:

still include push switch (6), circuit board (7) and elastic component (8), push switch (6) and the lower extreme cooperation of touch pole (4) and link to each other with circuit board (7), circuit board (7) have the circuit module of control motor (5) time delay outage time and link to each other with motor (5), and elastic component (8) support touch pole (4) and make touch pole (4) upwards keep breaking away the trend of push switch (6).

2. The delay structure of an electric sharpener of claim 1, wherein: the pen stopping device is characterized by further comprising a pen stopping block (3), wherein the pen stopping block (3) is arranged in the opening (23) in a sliding mode, and the lower end face of the pen stopping block (3) is abutted to the upper end of the touch rod (4).

3. The delay structure of an electric sharpener of claim 1, wherein: the circuit module is a power-off module which sets the time delay power-off time to be 3 seconds.

4. The delay structure of an electric sharpener of claim 1, wherein: the circuit module is a timing module which sets the total time of the motor (5) from starting to stopping rotating to be 20 seconds.

5. The delay structure of an electric sharpener of claim 1, wherein: still including support frame (9) that is used for supporting hob head (2), support frame (9) have and supply touch rod (4) perforation (91) of activity from top to bottom, and the inner wall of perforation (91) has annular boss (92), and the outer wall of touch rod (4) has annular protruding edge (41) with annular boss (92) complex, and the upper end of elastic component (8) offsets with the lower terminal surface of annular protruding edge (41), and the lower extreme of elastic component (8) offsets with the up end of annular boss (92).

6. The delay structure of an electric sharpener of claim 1, wherein: the touch bar (4) comprises a first touch bar (42) and a second touch bar (43) which are vertically abutted, the first touch bar (42) is located on the upper portion and abutted against the pen blocking block (3), and the second touch bar (43) is located on the lower portion and matched with the press switch (6).

7. The delay structure of an electric sharpener of claim 1, wherein: the press switch (6) is a microswitch.

8. The delay structure of an electric sharpener of claim 1, wherein: the elastic piece (8) is a spring or an elastic block or an elastic sheet.