CN201309353Y

CN201309353Y - Electric pencil sharpener

Info

Publication number: CN201309353Y
Application number: CNU2008202136167U
Authority: CN
Inventors: 张国奇
Original assignee: Yurisheng Electronic (Shenzhen) Co Ltd
Current assignee: Torch Star Electronics (Huizhou) Co., Ltd.
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-09-16
Anticipated expiration: 2018-11-17

Abstract

The utility model discloses an electric pencil sharpener, which comprises a casing, a power mechanism, a transmission mechanism and a sharpening mechanism, wherein the power mechanism, the transmission mechanism and the sharpening mechanism are installed in the casing. An output end of the power mechanism is connected with an input end of the transmission mechanism, and an output end of the transmission mechanism is connected with an input end of the sharpening mechanism. The electric pencil sharpener is characterized by further comprising a stop mechanism disposed in the casing, the stop mechanism comprises a stop push-rod and a stop switch, wherein the stop switch is electrically connected with the power mechanism, when a pencil is sharpened and moves to a preset position, the stop push-rod triggers the stop switch to enable the sharpening mechanism to stop, one end of the stop push-rod is a trigger end which is arranged at the tail end of stroke of a to-be-sharpened pen to trigger the stop switch, and the other end of the stop push-rod is a return end for pushing the trigger end to return. By reversely pushing the return end of the stop push-rod, the stop switch can be returned manually, and broken pencil cores can be taken out of a cutter holder, thereby the utility model is convenient in use.

Description

A kind of electric pencil planer

Technical field

The utility model relates to a kind of pencil-knife, especially relates to a kind of electric pencil planer.

Background technology

Existing electric pencil planer comprises housing, the transmission mechanism that is equiped with motor in housing, is driven by motor, the planing device that is driven by transmission mechanism.When pencil inserted pencil-knife, motor drove the transmission mechanism outputting power to planing mechanism, realized the automatic planing to pencil thereby the hobboing cutter of driving planing mechanism rolls.There is a defective in existing electric pencil planer when the planing pencil: do not solve the problem that the disconnected pen core in planing back brings well.If the time situation that pencil-lead fractures occurs, then can influence and continue the effect used, such as the pencil taper is not sharp, nib is rough etc. in planing.And the problem that can not continue to use just may appear for the pencil-knife with automatic stopping function, the pen core that perhaps fractures is not easy to take out, and influences the normal function of pencil-knife, makes pencil-knife not reach normal service life.

Summary of the invention

The purpose of this utility model solves above defective exactly, proposes a kind of electric pencil planer, when having the automatic stopping function, can easily take out the pencil-lead that fractures, thereby recovers the normal function of pencil-knife.

The objective of the invention is to be solved by the following technical programs.

This electric pencil planer, comprise housing and be installed in housing interior actuating unit, transmission mechanism and planing mechanism, the output of described actuating unit is connected with the input of described transmission mechanism, and the output of described transmission mechanism is connected with described input of planing mechanism.

The characteristics of this electric pencil planer are, also comprise the stop mechanism that is arranged in the housing, described stop mechanism comprises parking push rod and shutdown switch, described shutdown switch is electrically connected with described actuating unit, when pencil is moved to the precalculated position by planing, described parking push rod triggers shutdown switch makes planing mechanism stop action, and described parking push rod also has reset terminal.

In the above-mentioned electric pencil planer, an end of described parking push rod is a trigger end, is positioned at the end of travel of pencil to be planed, and is used to trigger described shutdown switch, and the other end of described parking push rod is described reset terminal, is used to promote the trigger end return.

In the above-mentioned electric pencil planer, described parking push rod comprises shake-up slide block, pen core push rod, and an end of described shake-up slide block is described trigger end, is used to promote an end of described pen core push rod, the other end of described pen core push rod is described reset terminal, is used to promote to touch the trigger end return of slide block.

In the above-mentioned electric pencil planer, described parking push rod also comprises T type switch shaft, and described T type switch shaft is connected with the pen core push rod, and described shake-up slide block promotes the pen core push rod by promoting T type switch shaft.

In the above-mentioned electric pencil planer, also be provided with the parking bracket that is fixed in the housing, described pen core push rod and shutdown switch are arranged in the parking bracket, and the reset terminal of described pen core push rod extends outside the surface of parking bracket.

In the above-mentioned electric pencil planer, described planing mechanism comprises knife rest, be installed in hobboing cutter on the knife rest, with the co-axially fixed pinion of hobboing cutter, be fixed on the housing internal gear with pinion, described knife rest is connected with the output of transmission mechanism.

In the above-mentioned electric pencil planer, defeated transmission mechanism comprise with actuating unit output meshed gears one, with the idler gear of gear one engagement, with the knife rest gear of idler gear engagement, described knife rest gear installs and fixes with knife rest is coaxial.

In the above-mentioned electric pencil planer, also comprise the actuating mechanism that is installed in the housing, described actuating mechanism comprises starting switch and starts push rod, described starting switch is electrically connected with actuating unit, one end of described startup push rod is a movable end, triggers described starting switch thereby make pencil promote this movable end when being admitted to planing mechanism.

The utility model is compared with the prior art the beneficial effect that is had: be provided with the parking push rod and touch shutdown switch, and the parking push rod can hand-reset, thereby make shutdown switch disconnect connect and make the pen core that blocks withdraw from, solved pencil-lead be stuck in the pencil-knife knife rest can't take out, problem that pencil-knife can't work on.The parking push rod is split up into and touches slide block, T type switch shaft and pen core push rod three parts, automatically reseting under ease of assembly and the normal condition.T type switch shaft is used to touch the power transmission between slide block and pen core push rod, can transmit the last thrust that presses down motive force and reset terminal of pencil core print.

Description of drawings

Fig. 1 is the internal structure schematic diagram of the specific embodiment;

Fig. 2 is the structural representation of stop mechanism in the specific embodiment.

The specific embodiment

A kind of electric pencil planer as shown in Figure 1 and Figure 2 comprises upper casing 21 and lower casing 12.Upper casing 21 is connected by screw thread or buckle with lower casing 12, and is for convenience detach.In the lower casing 12 is scrap box 11.

Be equiped with actuating unit, transmission mechanism, planing structure, actuating mechanism and stop mechanism in the upper casing 21.

Actuating unit comprises the motor 16 that is fixed on the installing plate, and the output of motor 16 is connected with motor gear 19 by the transmission device in the tooth case 1.During motor 16 rotary works, drive motor gear 19 rotations.

Actuating mechanism comprises starting switch 2 and starts push rod 3.Starting switch 2 is electrically connected with motor 16, starts push rod 3 and is installed on the upper casing 21, and an end is a movable end, and when pencil 1 was admitted to planing mechanism, pencil 1 promoted this movable end, started push rod 3 and was moved to the left, and triggered starting switch 2, motor 16 work.

Transmission mechanism comprise with motor gear 19 meshed gears 1, with gear one 20 meshed gears 2 18, with gear 2 18 meshed gears 34, with the knife rest gear 5 of gear 34 engagement.In gear 1, gear 2 18,34 of gears and the tooth case 2 22, be fixed on the installing plate in the upper casing 21.Drive 5 rotations of knife rest gear during motor gear 19 rotations.

Planing mechanism comprises knife rest 6, is installed in hobboing cutter 15 on the knife rest 6, with hobboing cutter 15 co-axially fixed pinions (among the figure for indicating), be fixed on the upper casing 21 internal gear 14 with pinion.The upper end of knife rest 6 and the 5 coaxial fixed installations of knife rest gear, thus knife rest gear 5 drives knife rest 6 rotations when rotating.Have cone-shaped hole in the knife rest 6, hobboing cutter 15 is installed along cone-shaped hole, after knife rest 6 rotations, drives the axis rotation of hobboing cutter 15 along cone-shaped hole, just pencil 1 planing of inserting in the cone-shaped hole can be shaped.The pinion of hobboing cutter 15 belows and internal gear 14 are mediated, and make hobboing cutter 15 to produce planing power to pencil 1 simultaneously around self axis rotation, prevent to skid.

Stop mechanism comprises shake-up slide block 7, T type switch shaft 8, pen core push rod 9, shutdown switch 10, shutdown switch support 13.Shutdown switch support 13 is fixed in the upper casing 21, and pen core push rod 9 and shutdown switch 10 are arranged on the shutdown switch support 13.Shutdown switch 10 is electrically connected with motor 16.T type switch shaft 8 is connected the upper end of pen core push rod 9, and pen core push rod 9 and T type switch shaft 8 can move up and down in shutdown switch support 13.Shake-up slide block 7 is installed in the lower end of knife rest 6, and the upper end of touching slide block 7 is a trigger end, is positioned at the end of travel of pencil 1.When pencil 1 planing, move down, touch the trigger end of slide block 7 until contact, and withstand the trigger end that touches slide block 7, make that touching slide block 7 moves down, after shake-up slide block 7 moves down, promote T type switch shaft 8 and pen core push rod 9 and move down, thereby trigger shutdown switch 10, make the trigger point closure of shutdown switch 10 to stop to pass on of motor 16 that the pencil planing finishes.Touching slide block 7, T type switch shaft 8 and pen core push rod 9 is that matched in clearance and weight are very little in assembly, after taking out pencil, touches slide block 7, T type switch shaft 8 and pen core push rod 9 and automatically reset by the trigger point resilience of shutdown switch 10, and pencil-knife restPoses.

If pencil-lead dialysis during planing is stuck in knife rest 6 bottoms easily and touches the position that slide block 7 contacts, the pencil-lead that at this moment fractures just withstands always and touches slide block 7, and shutdown switch 10 keeps the parking on-state, and when continuing to use, motor 16 just can not start.For addressing this problem, with the lower end of pen core push rod 9, promptly the position reset terminal relative with touching slide block 7 extends outside the shutdown switch support 13, at this moment, can use other instrument to withstand reset terminal pen core push rod 9 is moved up.Like this, the contact of shutdown switch 10 disconnects, and motor 16 can start, and pen core push rod 8 promotes T type switch shaft 8 and shake-up slide block 7 also moves up, and the disconnected core that shake-up slide block 7 will be stuck in knife rest 6 bottoms ejects, and the pencil-knife that reverses again just can make disconnected core drop out.If the reset terminal of pen core push rod 9 does not stretch out the outside of shutdown switch support 13, the corresponding site that also can be chosen in support 13 is offered hole, uses elongated instrument with pen core push rod 9 jack-up upwards, can realize effect same.Because upper casing 21 and lower casing 12 can be dismantled, pen core push rod 9 is contained in upper casing 21 inside does not influence above-mentioned use.

Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. electric pencil planer, comprise housing and be installed in the interior actuating unit of housing, transmission mechanism and planing mechanism, the output of described actuating unit is connected with the input of described transmission mechanism, the output of described transmission mechanism is connected with described input of planing mechanism, it is characterized in that: also comprise the stop mechanism that is arranged in the housing, described stop mechanism comprises parking push rod and shutdown switch, described shutdown switch is electrically connected with described actuating unit, when pencil is moved to the precalculated position by planing, described parking push rod triggers shutdown switch makes planing mechanism stop action, and described parking push rod also has reset terminal.

2. electric pencil planer as claimed in claim 1, it is characterized in that: an end of described parking push rod is a trigger end, is positioned at the end of travel of pencil to be planed, and is used to trigger described shutdown switch, the other end of described parking push rod is described reset terminal, is used to promote the trigger end return.

3. electric pencil planer as claimed in claim 2, it is characterized in that: described parking push rod comprises shake-up slide block and pen core push rod, one end of described shake-up slide block is described trigger end, be used to promote an end of described pen core push rod, the other end of described pen core push rod is described reset terminal, is used to promote to touch the trigger end return of slide block.

4. electric pencil planer as claimed in claim 3 is characterized in that: also be provided with the parking bracket that is fixed in the housing, described pen core push rod and shutdown switch are arranged in the parking bracket, and the reset terminal of described pen core push rod extends outside the surface of parking bracket.

5. as claim 3 or 4 described electric pencil planers, it is characterized in that: described parking push rod also comprises T type switch shaft, and described T type switch shaft is connected with the pen core push rod, and described shake-up slide block promotes the pen core push rod by promoting T type switch shaft.

6. electric pencil planer as claimed in claim 5, it is characterized in that: described planing mechanism comprises knife rest, be installed in hobboing cutter on the knife rest, with the co-axially fixed pinion of hobboing cutter, be fixed on the housing internal gear with pinion, described knife rest is connected with the output of transmission mechanism.

7. electric pencil planer as claimed in claim 5, it is characterized in that: described transmission mechanism comprise with actuating unit output meshed gears one, with the idler gear of gear one engagement, with the knife rest gear of idler gear engagement, described knife rest gear installs and fixes with knife rest is coaxial.

8. electric pencil planer as claimed in claim 5, it is characterized in that: also comprise the actuating mechanism that is installed in the housing, described actuating mechanism comprises starting switch and starts push rod, described starting switch is electrically connected with actuating unit, one end of described startup push rod is a movable end, triggers described starting switch thereby make pencil promote this movable end when being admitted to planing mechanism.