CN201021033Y

CN201021033Y - Multifunctional automatic pencil-plane

Info

Publication number: CN201021033Y
Application number: CNU2006200151498U
Authority: CN
Inventors: 李海霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-11
Filing date: 2006-10-11
Publication date: 2008-02-13
Anticipated expiration: 2016-10-11

Abstract

The utility model discloses a multi-purpose automatic pencil sharpener, which comprises a transformer, a motor, a gear transmission mechanism, an automatic cutting mechanism, an automatic pencil feeding mechanism and an automatic pencil retracting reversing mechanism. The transformer is a self-coupling transformer, the automatic pencil feeding mechanism is provided with a group of mutually meshed cone gear, rubber stretching gear, pencil pressing block and touch switch, and the rubber stretching gear and the pencil pressing block are positioned on the two sides of the pencil feeding movement path and distributed symmetrically, the pencil pressing block is vertical to the path and makes up and down movement along with a pressure spring, and the automatic pencil retracting reversing mechanism is arranged with a first forward and reverse rotation switch, a second touch stop switch and a third reverse switch. The multi-purpose automatic pencil sharpener of the utility model can realize the automatic feeding and cutting and the automatic retracting of the pencils of different outer diameter specifications, and simultaneously can realize the automatic identification and retracting of short pencils.

Description

A kind of multi-functional propelling pencil digs

[technical field]

The utility model relates to a kind of electric pencil planer.

[background technology]

The electric pencil planer of prior art, adopt the mutual inductance type transformer, when pencil inserts, touch switch starts, motor outputs power to cutting mechanism by retarded motion, thereby realizes cutting movement, and this pencil-knife can only the manual feeding of people, cutting force is wayward, easily stuck, use inconvenience, the Chinese invention patent of the patent No. 200510022337.3 discloses a kind of electric pencil planer, also adopt the mutual inductance type transformer, be characterized in having realized that pencil auto-feed and withdrawing from automatically, its defective are that the pencil that only is applicable to a kind of fixed outer diameter uses, and short pencil can not withdraw from automatically when entering, easily stuck, cost is higher.

[utility model content]

The purpose of this utility model is to overcome above-mentioned technical defective and provides a kind of and can realize pencil auto-feed and the electric pencil planer that withdraws from automatically, be applicable to the use of various outer diameter specification pencil simultaneously, and can discern automatically when short pencil enters and withdraw from, effectively having avoided short pencil to enter cutting mechanism can't withdraw from and stuck phenomenon, simultaneously owing to adopt the auto-coupling transformer, replace mutual inductance type transformer of the prior art, reduced the volume of fiery ox, dwindle iron core and coil, thereby reduced the cost of fiery ox effectively.

The utility model discloses a kind of multi-functional propelling pencil digs, comprise fiery ox, motor, gear drive, cutting mechanism automatically, it is characterized in that: described multi-functional propelling pencil dig further comprise one by advancing automatically of driving of auto-coupling fire ox a mechanism and is used for that pencil withdraws from moves back a reversing device automatically.

Compared with prior art, the utlity model has following characteristics:

Owing to adopt the auto-coupling transformer, replace mutual inductance type transformer of the prior art, reduced the volume of fiery ox, dwindle iron core and coil, thereby reduced the cost of fiery ox effectively.

Owing to be provided with the pencil briquetting that can produce stretching motion under flexible gear of rubber and the effect in both sides, pencil feed motion path at stage clip, thereby rubber gear and pencil briquetting mutually near or away from reaching the size of adjusting the pen inlet footpath, realize the auto-feed cutting of various outer diameter specification pencil effectively and withdraw from automatically.

Owing to be provided with the mutual alignment relation that first forward-reverse switch and second touches shutdown switch, and by the startup of electron plate gauge tap with reset, guaranteed effectively can discern automatically when short pencil cuts and withdrawed from.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

[description of drawings]

Fig. 1 is the three-dimensional explosive view that multi-functional propelling pencil digs.

Fig. 2 is that multi-functional propelling pencil digs front view.

Fig. 3 is that multi-functional propelling pencil digs vertical view.

[specific embodiment]

A kind of multi-functional propelling pencil digs, comprise fiery ox 25, motor 26, gear rotation actuation mechanism, automatically cutting mechanism, automatically advance a mechanism, move back a reversing device automatically.

Described fiery ox 25 is adopted 36V or 24V auto-coupling transformer, and the motor 26 that fiery ox 25 is driven adopts corresponding 36V or 24V motor, motor 26 driven wheel transmission mechanisms.

With reference to figure 1-Fig. 3, described gear rotation actuation mechanism comprises first train of reduction gears, support 23, tooth case lid 24.Described first train of reduction gears is made up of A gear 28, B gear 29, C gear 30 and D gear 22.The A gear is fixed on 26 in the motor, and D gear 22 is fixed on the knife rest 18, causes knife rest 18 to rotate with the rotation of motor 26.

With reference to figure 1--Fig. 3, described automatic cutting mechanism comprises cutter shaft 17, knife rest 18, hobboing cutter 19, gear ring 20 and hobboing cutter gear (figure does not show).Hobboing cutter 19 connects together with knife rest 18, make hobboing cutter 19 to rotate together along with knife rest 18, gear ring 20 is fixed on the support 23 simultaneously, hobboing cutter gear and gear ring 20 internal tooths are nibbled mutual motion mutually, thereby make hobboing cutter 19 produce circular motion, finish the cutting movement of pencil around the pencil that enters knife rest 18 centre bores.

With reference to figure 1--Fig. 3, describedly to enter a mechanism automatically and comprise the flexible gear 4 of second train of reduction gears, rubber, pencil briquetting 12, stage clip 14, described second train of reduction gears is made up of E awl tooth 15, F awl tooth 16, G gear 3.E awl tooth 15 is socketed on the knife rest 18, and is meshed with F awl tooth 16, produces the motion that commutates, and F awl tooth 16 1 sides are provided with a spur gear and are meshed with G gear 3, and rotates by the flexible gear 4 of axle 2 drive rubber, thereby drives the pencil motion that enters the feeding path.The flexible gear 4 of rubber is positioned at both sides up and down, feed motion path with pencil briquetting 12, and be symmetrically distributed, the flexible gear 4 of rubber can produce stretching motion because of the elasticity of rubber, pencil briquetting 12 produces stretching motion under the effect of stage clip 14, thereby the flexible gear 4 of rubber is with the close mutually of pencil briquetting 12 or away from reaching the size of adjusting the pen inlet footpath, thereby make the pencil of various outer diameter specification all can enter feeding path and compacted, with the rotation campaign of the flexible gear 4 of rubber.

With reference to figure 1--Fig. 3, a described reversing device that moves back automatically comprises that first forward-reverse switch 7, second touches shutdown switch 10, the 3rd reversal switch 33, retaining sheet 38, shake-up axle 37 and electron plate (figure does not show), pen plughole 8.The 3rd reversal switch 33 is positioned at knife rest 18 ends and is socketed in and touches axle 37 and retaining sheet 38 places, the pencil that planing finishes promotes retaining sheet 38, start the 3rd reversal switch 33 by touching axle 37, motor 26 counter-rotatings this moment under electron plate control, pencil is taken out of cutting mechanism.First forward-reverse switch 7 is positioned at pen plughole 8 places, second touches the centre that shutdown switch 10 is positioned at flexible gear 4 of rubber and pencil briquetting 12, pencil enters from pen plughole 8, start first forward-reverse switch 7, pencil arrives at flexible gear 4 places of rubber along the feeding path, start second and touch shutdown switch 10, this moment, motor 26 startups were just changeed under electron plate control, the flexible gear 4 of rubber drives pencil and enters automatic cutting mechanism, before pencil, be advanced in the automatic cutting mechanism process, if pencil is too short, when the terminal disengaging of short pencil first forward-reverse switch 7, first forward-reverse switch 7 resets, motor 26 counter-rotatings this moment under electron plate control, this moment, no matter whether the pencil cutting was finished, and pencil is all taken out of cutting mechanism, withdraws from automatically.

Although the utility model is disclosed by above example, but scope of the present utility model is not limited thereto, do not departing under the condition of the utility model design, more than each element or construct available under technical field personnel similar or equivalent element or the structure understood replace.

Claims

1. a multi-functional propelling pencil digs, comprise fiery ox, motor, gear drive, cutting mechanism automatically, it is characterized in that: described multi-functional propelling pencil dig further comprise one by advancing automatically of driving of auto-coupling fire ox a mechanism and is used for that pencil withdraws from moves back a reversing device automatically.

2. multi-functional propelling pencil according to claim 1 digs, and it is characterized in that fiery ox is the auto-coupling transformer.

3. multi-functional propelling pencil according to claim 1 digs, and it is characterized in that advancing a mechanism is provided with flexible gear of rubber and scalable motion in both sides, pencil feed motion path pencil briquetting automatically, and is symmetrically distributed.

4. multi-functional propelling pencil according to claim 1 digs, and it is characterized in that advancing automatically a mechanism and is provided with one group of intermeshing bevel gear.

5. multi-functional propelling pencil according to claim 1 digs, and it is characterized in that moving back automatically a path of reversing device pencil feed motion and is provided with first forward-reverse switch, second and touches shutdown switch, and establish at the knife rest end and to be covered with the 3rd reversal switch.