CN201102429Y

CN201102429Y - Full-automatic pencil cutter

Info

Publication number: CN201102429Y
Application number: CNU2007201722208U
Authority: CN
Inventors: 贾安长
Original assignee: SHENZHEN DONGXUNDA HARDWARE PLASTIC PRODUCT CO Ltd
Current assignee: SHENZHEN DONGXUNDA HARDWARE PLASTIC PRODUCT CO Ltd
Priority date: 2007-09-28
Filing date: 2007-09-28
Publication date: 2008-08-20
Anticipated expiration: 2017-09-28

Abstract

A full automatic pencil sharpener comprises a casing, a drive component and a knife component which are arranged inside the casing, a power component and a circuit board which are arranged at the bottom of the casing and a switch component. The casing is provided with a pencil inlet which is communicated with a pencil-entering through hole at the knife rest component which is connected with the drive component by a knife rest gear. The drive component and the switch component are respectively in electric connected with the circuit board. The circuit board is in electric connected with the power component. The full automatic pencil sharpener of the utility model can realize the automatic entering-backing and cutting of the pencil and has the functions of distinguishing over short pencil and returning the pencil manually, which can avoid that the pencil is sharpened to be broken carefully and blocked in the pencil-entering through hole. At the same time, the full automatic pencil sharpener of the utility model can select alternating current power or direct current power to work according to the requirement of different using occasion, so as to achieve the double efficacies of saving energy and being convenient for carrying.

Description

Full-automatic pencil sharpener

Technical field

The utility model is meant a kind of full-automatic pencil sharpener especially about a kind of pencil sharpener.

Background technology

For a long time, what people generally used is manual pencil sharpener, this pencil sharpener in use, must constantly rotate the pencil that inserts pencil sharpener, just can reach the purpose that sharpens a pencil, not only efficient is low, and slightly firmly uneven just easily disconnected pen core, the pen bits can't be collected automatically, are scattered everywhere, and are very unhygienic.For this reason, people have invented electronic pencil sharpener gradually, utility model patent as China Patent No. 200520013796.0 discloses a kind of: " full-automatic pencil sharpener ", it mainly is made up of driven unit, cutter holder assembly and switch module etc., by the work of switch module control driven unit, drive cutter holder assembly work by driven unit then, thereby the pencil that inserts the pencil sharpener pen-laying hole is cut automatically, reach the purpose of automatic cutting pencil.This pencil sharpener is the work that realizes driven unit by delay circuit and stop, and manually do not move back pen and the too short defencive function of pencil, and this full-automatic pencil sharpener can only be inconvenient to carry by AC power work.

Summary of the invention

The purpose of this utility model is to provide a kind of full-automatic pencil sharpener, and it is provided with and manually moves back pen and the too short defencive function of pencil, and can need select AC power work or direct current work according to different use occasions, reaches energy savings and the double effects that is convenient for carrying.

For achieving the above object, the utility model provides a kind of full-automatic pencil sharpener, comprise: shell, driven unit, cutter holder assembly, circuit board, power supply module, and switch module, establish pen inlet on the shell, pen inlet is communicated with the through hole that advances on the cutter holder assembly, cutter holder assembly is connected with driven unit by its knife rest gear, and driven unit and switch module electrically connect with circuit board respectively, and circuit board and power supply module electrically connect.

Described full-automatic pencil sharpener, wherein, outer casing bottom is established base, base is provided with the docking section that cooperates with cutter holder assembly, the docking section inner surface is established internal tooth, and cutter holder assembly comprises knife rest, knife rest gear, cutter shaft, hobboing cutter, reaches the cutter tooth wheel, and knife rest one end is installed the hobboing cutter that columniform surface is embedded with the spirality edge of a knife by cutter shaft, cutter shaft and blade holder turns axis form acute angle, and the cutter tooth wheel of hobboing cutter bottom is meshed with the internal tooth of base docking section.

Described full-automatic pencil sharpener, wherein, also comprise a pen conveying device, this pen conveying device comprises pair of opposing in a scroll wheel that enters top, through hole both sides, with the coaxial linkage gear that links to each other of a scroll wheel wherein, advance a gear with this linkage gear rotates synchronously, and this advances a gear and cooperates interlock with the linkage portion on knife rest top.

Described full-automatic pencil sharpener, wherein, driven unit comprises direct current generator, motor gear, reaches transition gear, and motor gear is contained on the output shaft of direct current generator, the engagement of the transition gear of motor gear and duplex, transition gear and knife rest gears engaged.

Described full-automatic pencil sharpener; wherein; switch module comprises that into a switch, a too short protection switch, move back a switch automatically, and one manually move back a switch; advance a switch and be located at an into via top; too short protection switch is located at the pen inlet place; automatically move back a switch and be located on the base, and, manually move back a switch and be located on the shell corresponding to the position of advancing a via bottoms.

Described full-automatic pencil sharpener, wherein, this advance a switch, too short protection switch, automatically move back a switch, and manually move back a switch and electrically connect with circuit board respectively, when advancing a switch and too short protection switch and being pressed simultaneously, direct current generator turns clockwise; Advance a switch and press, when too short protection switch was not pressed, direct current generator was rotated counterclockwise; Automatically move back a switch when pressing, direct current generator is rotated counterclockwise; Manually move back a switch when pressing, direct current generator is rotated counterclockwise.

Described full-automatic pencil sharpener, wherein, power supply module comprises a direct current power supply module and an AC power assembly.

Described full-automatic pencil sharpener, wherein, the dc source assembly provides electric energy by battery, and battery is located in the base, is provided with the battery case that is installed with battery in the base.

Described full-automatic pencil sharpener, wherein, the AC power assembly comprises a transformer.

Described full-automatic pencil sharpener wherein, also comprises the drawer of depositing rubbish.

In sum, the full-automatic pencil sharpener of the utility model, can realize the automatic advance and retreat and the cutting of pencil, and be provided with the identification pencil too short with manually move back a function, prevent that pencil is because of cutting disconnected being stuck in in the through hole accidentally, the full-automatic pencil sharpener of the utility model also can need be selected AC power work or dc source work according to different use occasions simultaneously, to reach energy savings and the double effects that is convenient for carrying.

In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.

Brief description of drawings

Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by the specific embodiment of the present utility model is described in detail.

In the accompanying drawing,

Fig. 1 is the main cutaway view of the full-automatic pencil sharpener of the utility model;

Fig. 2 removes the stereogram of shell for the full-automatic pencil sharpener of the utility model;

Fig. 3 is the vertical view of Fig. 2.

The specific embodiment

For further setting forth the utility model is technological means and the effect that the predetermined purpose of realization is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.

Shown in Fig. 1-2, the full-automatic pencil sharpener of the utility model comprises: shell 10, be located at driven unit 2 in the shell 10, cutter holder assembly 4, and pen conveying device 5, the power supply module of being located at outer casing bottom and circuit board (not shown), and and the switch module of circuit board electric connection.

A pen inlet 100 is established at shell 10 tops, in establish accommodation space 101, established the frame 107 of fixedly partition effect in the accommodation space 101, driven unit 2 and cutter holder assembly 4 are located at the both sides of frame 9 respectively.Shell 10 bottoms are provided with base 102.

Cutter holder assembly 4 comprises knife rest 40, cutter shaft 41, hobboing cutter 42 and cutter tooth wheel 43, what knife rest 40 had that a side establishes opening (not shown) advances a through hole 401, advance a through hole 401 and be the cone-shaped hole that diminishes successively toward base diameter by the top, and advance a through hole 401 and be communicated with pen inlet 100.Knife rest 40 1 ends are installed the hobboing cutter 42 that columniform surface is embedded with the spirality edge of a knife by cutter shaft 41, the opening of the corresponding knife rest 40 of hobboing cutter 42 edges of a knife, and cutter shaft 41 forms acute angle with knife rest 40 pivot centers, and promptly hobboing cutter 42 is tilting.Knife rest 40 is connected on the base 102 by the connecting portion 47 of its bottom, base 102 is provided with the docking section 103 that cooperates with connecting portion 47, a circular trough 104 is established in docking section 103, groove 104 inner surfaces are established internal tooth 105, the cutter tooth wheel 43 of hobboing cutter 42 bottoms is contained in the groove 104, and is meshed with the internal tooth 105 of groove 104.

Driven unit 2 electrically connects with circuit board (not shown), comprise motor 20, motor gear 21, reach transition gear 22, motor gear 21 is contained on the output shaft of direct current generator 20, and motor gear 21 meshes with the transition gear 22 of duplex, and transition gear 22 is connected with knife rest 40.

Pen conveying device 5 comprises that pair of opposing is in the scroll wheel 50 that enters a through hole 401 both sides tops, with a scroll wheel 50 coaxial linkage gears that link to each other 51 wherein, advance a gear 52 with this linkage gear 51 rotates synchronously.This advances a gear 52 is a duplex tooth (as shown in Figure 3), has an equipment gear 53, and this equipment gear 53 is meshing with linkage gear 51, and drives linkage gear 51 and advance a gear 52 and rotate synchronously.Knife rest 40 tops also be provided with one with advance the linkage portion 402 that a gear 52 is linked, when motor 20 drives knife rest 40 rotations, the linkage portion 402 on knife rest 40 tops drives a gear 52 rotations, thereby driving linkage gear 51 rotates synchronously, and then by 50 rotations of linkage gear 51 drive scroll wheels, thereby the automatic advance and retreat of realization pencil.

Switch module comprises an into switch 80, one too short protection switch 81; one move back a switch 82 automatically, and one manually move back a switch 83; advance a switch 80 and be located at the into top of a through hole 401; too short protection switch 81 is located at pen inlet 100 places; automatically moving back a switch 82 is located on the base 102; and, manually move back a switch 83 and be located on the shell 10 corresponding to the bottom of advancing a through hole 401.This advance a switch 80, too short protection switch 81, automatically move back a switch 82, and manually move back a switch 83 and electrically connect with circuit board 12 respectively, when advancing a switch 80 and be pressed simultaneously with too short protection switch 81, direct current generator 20 turns clockwise; Press when advancing a switch 80, when too short protection switch 81 was not pressed, direct current generator 20 was rotated counterclockwise; When moving back a switch 82 automatically when being pressed, direct current generator 20 is rotated counterclockwise; When manually moving back a switch 83 when being pressed, direct current generator 20 is rotated counterclockwise.The function of switch module can realize that this realization technology is a prior art, repeats no more here by the circuit on the circuit board.

Power supply module and circuit board electrically connect, for circuit board provides working power, power supply module comprises a direct current power supply module and an AC power assembly, and the dc source assembly provides electric energy by battery, battery is located in the base 102, is provided with the battery case 106 that is installed with battery in the base 102.The AC power assembly comprises a transformer (not shown), and is connected on the 220V civil power by this transformer and provides electric energy to circuit board.

For chip is scattered, below described cutter holder assembly 4, be provided with the drawer 6 of depositing rubbish everywhere.

The operation principle of the full-automatic pencil sharpener of the utility model is; when pencil is inserted pen inlet 100; advancing a switch 80 is pressed simultaneously with too short protection switch 81; direct current generator 20 turns clockwise; by motor gear 21, transition gear 21, and knife rest gear 47 drive knife rests 40 and turn clockwise with hobboing cutter 42; and drive pen conveying device 5 makes pencil realize cutting automatically; when the nib of pencil touches this and moves back switch 82 automatically; direct current generator 20 is rotated counterclockwise, thereby pencil is withdrawed from from advance a through hole 401.If pencil is too short, when pencil advanced the pen cutting, its afterbody can not be against the too short protection switch 81 on the pen inlet, and then too short protection switch 81 disconnects, and direct current generator 20 is rotated counterclockwise, and withdraws from pencil.Also be provided with one on the shell 10 and manually move back a switch 83, press this and manually move back a switch 83, motor is rotated counterclockwise, and to withdraw from pencil at any time, prevents from that it from cutting accidentally because of nib disconnected can't touch this and move back a switch 82 automatically and be stuck in in the through hole 401 in working angles.

In sum, the full-automatic pencil sharpener of the utility model, can realize the automatic cutting of pencil, and be provided with the identification pencil too short with manually move back a function, prevent that pencil is because of cutting disconnected being stuck in in the through hole accidentally, the full-automatic pencil sharpener of the utility model also can need be selected AC power work or dc source work according to different use occasions simultaneously, to reach energy savings and the double effects that is convenient for carrying.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.

Claims

1, a kind of full-automatic pencil sharpener, it is characterized in that, comprise: shell, driven unit, cutter holder assembly, circuit board, power supply module, and switch module, establish pen inlet on the shell, pen inlet is communicated with the through hole that advances on the cutter holder assembly, cutter holder assembly is connected with driven unit by its knife rest gear, and driven unit and switch module electrically connect with circuit board respectively, and circuit board and power supply module electrically connect.

2, full-automatic pencil sharpener as claimed in claim 1, it is characterized in that, outer casing bottom is established base, base is provided with the docking section that cooperates with cutter holder assembly, the docking section inner surface is established internal tooth, and cutter holder assembly comprises knife rest, knife rest gear, cutter shaft, hobboing cutter, reaches the cutter tooth wheel, and knife rest one end is installed the hobboing cutter that columniform surface is embedded with the spirality edge of a knife by cutter shaft, cutter shaft and blade holder turns axis form acute angle, and the cutter tooth wheel of hobboing cutter bottom is meshed with the internal tooth of base docking section.

3, full-automatic pencil sharpener as claimed in claim 2, it is characterized in that, also comprise a pen conveying device, this pen conveying device comprises pair of opposing in a scroll wheel that enters top, through hole both sides, with the coaxial linkage gear that links to each other of a scroll wheel wherein, advance a gear with this linkage gear rotates synchronously, and this advances a gear and cooperates interlock with the linkage portion on knife rest top.

4, full-automatic pencil sharpener as claimed in claim 2, it is characterized in that driven unit comprises direct current generator, motor gear, reaches transition gear, motor gear is contained on the output shaft of direct current generator, the transition gear engagement of motor gear and duplex, transition gear and knife rest gears engaged.

5, full-automatic pencil sharpener as claimed in claim 1; it is characterized in that; switch module comprises that into a switch, a too short protection switch, move back a switch automatically, and one manually move back a switch; advance a switch and be located at an into via top; too short protection switch is located at the pen inlet place; automatically move back a switch and be located on the base, and, manually move back a switch and be located on the shell corresponding to the position of advancing a via bottoms.

6, full-automatic pencil sharpener as claimed in claim 5, it is characterized in that, this advance a switch, too short protection switch, automatically move back a switch, and manually move back a switch and electrically connect with circuit board respectively, when advancing a switch and too short protection switch and being pressed simultaneously, direct current generator turns clockwise; Advance a switch and press, when too short protection switch was not pressed, direct current generator was rotated counterclockwise; Automatically move back a switch when pressing, direct current generator is rotated counterclockwise; Manually move back a switch when pressing, direct current generator is rotated counterclockwise.

7, full-automatic pencil sharpener as claimed in claim 1 is characterized in that, power supply module comprises a direct current power supply module and an AC power assembly.

8, full-automatic pencil sharpener as claimed in claim 7 is characterized in that, the dc source assembly provides electric energy by battery, and battery is located in the base, is provided with the battery case that is installed with battery in the base.

9, full-automatic pencil sharpener as claimed in claim 7 is characterized in that, the AC power assembly comprises a transformer.

10, full-automatic pencil sharpener as claimed in claim 1 is characterized in that, also comprises the drawer of depositing rubbish.