CN104149529B - A kind of electric pencil sharpener move back a trigger mechanism - Google Patents
A kind of electric pencil sharpener move back a trigger mechanism Download PDFInfo
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- CN104149529B CN104149529B CN201410370661.3A CN201410370661A CN104149529B CN 104149529 B CN104149529 B CN 104149529B CN 201410370661 A CN201410370661 A CN 201410370661A CN 104149529 B CN104149529 B CN 104149529B
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- move back
- trigger mechanism
- pencil sharpener
- optoelectronic switch
- push rod
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Abstract
What the invention provides a kind of electric pencil sharpener moves back a trigger mechanism, belongs to field of mechanical technique.It solve the problem that existing electric pencil sharpener can not move back pen automatically.It is arranged in the casing of electric pencil sharpener, motor is provided with in casing, be connected with putting penholder and entering pen assembly of planing assembly, motor and put between penholder and be provided with power transmission shaft, originally move back a trigger mechanism and comprise the push rod be arranged in power transmission shaft, be located at the correlation optoelectronic switch in casing and control chip, correlation optoelectronic switch and motor are electrically connected with control chip respectively, the upper end of push rod is stretched into and is put in penholder, pencil complete cut after the lower end of push rod can move down under the promotion at nib and trigger correlation optoelectronic switch, control chip is integrated with timing module, when correlation optoelectronic switch trigger after timing module start timing and after timing module timing to setting value control chip control motor reversal.It has highly sensitive, reaction is fast, move back the advantages such as pen is timely.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of electric pencil sharpener, what particularly relate to a kind of electric pencil sharpener moves back a trigger mechanism.
Background technology
Electric pencil sharpener is office stationary very common in office, constantly accelerate in current work rhythm, people work and constantly pursue today of convenience and high efficiency, bring great convenience when electric pencil sharpener is handled official business to people because it automatically can carry out planing function to pencil.It generally comprises casing assembly, cutter holder assembly, driven unit and power supply module, wherein: cutter holder assembly, driven unit, power supply module etc. are arranged in the inner space of casing assembly; Driven unit is made up of the parts such as motor and gear-box, by motor by power transmission to knife rest, band movable knife rack on hobboing cutter automatic planing is carried out to pencil, after planing completes by pencil point touch microswitch operate to stop motor.Although this kind of electric pencil sharpener automatically can stop motor after pencil has been planed, in whole planing process, be all need user manually to send pen, cause user in use still can not leave and do other things.
In order to solve the problem, what the applicant once proposed a kind of electric pencil sharpener enters pen device [application number: 200720106613.9 automatically; Notification number: CN201030745Y], it comprises fixed mount and is arranged on two clamping axles on fixed mount, the passage for entering pen is provided with in the middle part of fixed mount, that two clamping axles are parallel to each other and be placed in passway place, one end of two clamping axles is respectively provided with a gear, these two gears heterodoxy on two clamping axles is arranged, and fixed mount is also provided with and can stirs the rotating disk that two clamping axles make it contrary rotation.This automatically enters pen device and instead of the mode that original needs manually enter pen, the function of electric pencil sharpener is strengthened further, convenience is higher, automatically pen and planing is entered after pencil inserts, and after planing completes, utilize pencil point jacking sliding block pull switch push shaft to touch microswitch, motor to be stopped, thus stop planing and automatically enter pen.
Although the pen device that automatically enters of above-mentioned electric pencil sharpener instead of and original manually enters a mode, the perfect automatic function of electro-motion pencil sharpener, but touch microswitch owing to stopping motor by pencil point jacking sliding block to realize, and it does not have again and automatically moves back a function, as long as therefore user not by pencil release, pencil point just all the time jacking sliding block touch microswitch.Meet user on occasion pencil is inserted just to go to process other affairs and forget pencil is extracted, if things go on like this, can easily cause the sensitivity of microswitch to reduce, not easily the problem such as reset, thus cause the function of electric pencil sharpener to be affected.
Summary of the invention
The object of the invention is the problems referred to above existed for prior art, propose a kind of can automatically trigger when pencil completes planing after motor reversal utilize automatically move back the electric pencil sharpener of pen into pen assembly realization move back a trigger mechanism.
Object of the present invention realizes by following technical proposal:
A kind of electric pencil sharpener move back a trigger mechanism, be arranged in the casing of electric pencil sharpener, motor is provided with in casing, be connected with putting penholder and entering pen assembly of planing assembly, motor and put between penholder and be provided with power transmission shaft, it is characterized in that, originally move back a trigger mechanism and comprise the push rod be arranged in power transmission shaft, be located at the correlation optoelectronic switch in casing and control chip, described correlation optoelectronic switch and motor are electrically connected with control chip respectively, the upper end of described push rod is stretched into and is put in penholder, pencil complete cut after the lower end of described push rod can move down under the promotion at nib and trigger correlation optoelectronic switch, described control chip is integrated with timing module, timing module described after correlation optoelectronic switch triggers starts timing and control chip controls motor reversal after timing module timing to setting value.
Pencil insertion can trigger electric motor starting and start when putting in penholder enters pen into pen assembly, and motor drives planing assembly to plane to pencil simultaneously.When motor drives planing assembly to complete planing to pencil, and continue to drive when to enter into pen assembly, the lower end of pencil promotes the upper end of push rod downwards, push rod is squeezed and moves down, the lower end of push rod is moved downward to correlation optoelectronic switch and is cut off by the light between the transmitter of correlation optoelectronic switch and receiver, thus correlation optoelectronic switch is triggered.After pencil triggers, the timing module be integrated on control chip starts timing, and the object of timing is to carry out light pen to the nib sidepiece of pencil after pencil just completes planing, and such pencil, when to move back, a card phenomenon would not occur.After timing module timing to setting value, control chip just controls motor reversal again, motor reversal thus drive into pen assembly counteragent, automatically exits completing the pencil after planing from putting penholder.
Because correlation optoelectronic switch has response time fast, highly sensitive advantage, therefore one when push rod lower end extend into penetrate formula optoelectronic switch between transmitter and receiver by light barrier after, correlation optoelectronic switch can rapidly by this signal transmission on control chip, ensure that control chip can control in time, thus make originally to move back a trigger mechanism and can control in time into pen assembly, the pencil after having planed to be exited from putting in penholder.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, be provided with installing rack in described casing, be fixed with plugboard bottom described installing rack, described correlation optoelectronic switch is plugged on plugboard.
Because correlation optoelectronic switch is electronic devices and components, and comprise transmitter and receiver, therefore correlation optoelectronic switch is wanted to be arranged on installing rack, just need to be connected on installing rack one can the plugboard of grafting components and parts pin, such correlation optoelectronic switch just can be plugged on plugboard.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described installing rack is also fixed with guide plate, described guide plate is positioned at directly over correlation optoelectronic switch, and the end of described guide plate has breach, and described push rod lower end is positioned at the breach of guide plate end.
Tool guide plate jaggy in end is set above correlation optoelectronic switch, and make the lower end of push rod be positioned at guide plate, so will be in the breach of guide plate all the time in the process of push rod in movement, would not offset at the guide effect lower push rod of guide plate.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described push rod lower end is fixed with the resistance block in flat, and the lower end of a described resistance block is positioned at the breach of guide plate end.A resistance block of flat can increase stop area, can trigger correlation optoelectronic switch more accurately and rapidly.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, a described resistance block is arranged with spring, and a described resistance block sidepiece has the annular shoulder block of protrusion, and the two ends of described spring lean respectively on the upper surface of annular shoulder block and guide plate.
Spring mainly plays reset response, after push rod drives a resistance block to move down to trigger correlation optoelectronic switch to make control chip control motor reversal, enter pen assembly to be exited from putting in penholder by pencil, a resistance block then upwards can be reset to original state under the elastic force effect of spring.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described put penholder has put a passage, described penholder lower end sidepiece of putting offers mounting groove, slide block is provided with in described mounting groove, backstay is fixed with between the top and bottom sidewall of described mounting groove, described slide block set is located on backstay, and described slide block is positioned at puts the below of a passage and the upper end of the bottom of slide block and push rod leans.
In order to increase the contact area between push rod and pencil point, therefore by arranging slide block putting on penholder, the upper end of push rod and the bottom of slide block are leant, so just first can be contacted with slide block by pencil point and then to move along backstay by extruding slide block thus to drive push rod to move.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described slide block sidepiece has the connecting portion of protrusion, and described connecting portion sidepiece has the cambered surface that can lean with pencil point sidepiece.
After pencil completes planing, the nib of pencil all can be sharper and thin, if make the nib of pencil directly press down wearing and tearing or fracture that slide block easily causes pencil point, therefore the connecting portion of protrusion is set at the sidepiece of slide block, the side of connecting portion has cambered surface, when pencil moves down, the nib of pencil does not directly contact with slide block, but leant by the sidepiece of pencil point and the cambered surface of connecting portion sidepiece, nib due to pencil is tapered, therefore when pencil moves down, the side of nib will under applying a downward effect by the cambered surface of connecting portion to slide block, thus make slide block drive push rod to move down.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described control chip is gone back integrate motor rotational speed control module.
Integrate motor reversion time delay module and motor speed control module on control chip, when pencil inserts triggering motor forward or reverse, control chip controls the rotation speed change of motor by motor speed control module, make motor speed gradually by low rising or from high to low, thus ensure enter pen planing can both be more soft, steady or move back the work of motor in a process.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described control chip is MCU chip.MCU chip is conventional singlechip chip, adopts MCU chip can realize the time delay reversion of motor as control chip, and controls the rotation speed change of motor by the change of output signal, can both be more soft, steady when entering pen planing or to move back.
Move back in a trigger mechanism at above-mentioned electric pencil sharpener, described correlation optoelectronic switch is groove type photoelectric switch.
Compared with prior art, a trigger mechanism that moves back of this electric pencil sharpener has the following advantages:
1, a trigger mechanism that moves back of this electric pencil sharpener adopts correlation optoelectronic switch and control chip to realize automatically moving back a function as the control assembly controlling motor reversal, and correlation optoelectronic switch has highly sensitive, that the response time is fast advantage, therefore, it is possible to move back pen more in time;
2, a trigger mechanism that moves back of this electric pencil sharpener adopts MCU chip as control chip, motor speed can be realized gradually from low to high, thus make the startup of motor can be softer, also can be more steady, smooth and easy when planing to pencil, in addition, the time delay reversion of motor can also be realized, the rotating of motor is switched more stable;
3, this electric pencil sharpener move back a trigger mechanism by arrange at the sidepiece of slide block band cambered surface connecting portion, to be contacted with cambered surface by pencil point sidepiece and promote slide block, thus avoid the pencil point after planing and directly contact with slide block and cause pencil point impaired.
Accompanying drawing explanation
Fig. 1 is the casing internal structural representation of electric pencil sharpener.
Fig. 2 is the structural representation moving back a trigger mechanism of this electric pencil sharpener.
Fig. 3 is the structural representation moving back installing rack place in a trigger mechanism of this electric pencil sharpener.
Fig. 4 is the enlarged drawing at A-A place in Fig. 2.
Fig. 5 is front view and the reverse view of putting penholder place.
Fig. 6 is the structural representation moved back when a trigger mechanism does not put penholder of this electric pencil sharpener.
Fig. 7 is the structural representation moving back slide block in a trigger mechanism of this electric pencil sharpener.
Fig. 8 is the cabinet form figure of electric pencil sharpener.
In figure, 1, casing; 2, motor; 3, planing assembly; 4, penholder is put; 5, pen assembly is entered; 6, power transmission shaft; 7, push rod; 8, correlation optoelectronic switch; 9, control chip; 10, installing rack; 11, plugboard; 12, guide plate; 13, breach; 14, a block is hindered; 15, spring; 16, annular shoulder block; 17, a passage is put; 18, mounting groove; 19, backstay; 20, slide block; 21, connecting portion; 22, cambered surface; 23, driving gear set; 24, power interface.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As illustrated in figures 1 and 8, a kind of electric pencil sharpener move back a trigger mechanism, be arranged in the casing 1 of electric pencil sharpener.The casing 1 of electric pencil sharpener cylindrically, power interface 24 is provided with bottom casing 1, be provided with motor 2 in casing 1, be connected with putting penholder 4 and entering pen assembly 5 of planing assembly 3, motor 2 and put between penholder 4 and be provided with power transmission shaft 6, driving gear set 23 is provided with between the output shaft of motor 2 and power transmission shaft 6, power transmission shaft 6 can be driven to rotate by driving gear set 23 when motor 2 rotates, put can to drive after penholder 4 rotates simultaneously and enter pen into pen assembly 5 and drive planing assembly 3 pairs of pencils to plane.
As shown in Figure 2, originally move back a trigger mechanism to comprise the push rod 7 be arranged in power transmission shaft 6, be located at correlation optoelectronic switch 8 in casing 1 and control chip 9, correlation optoelectronic switch 8 and motor 2 are electrically connected with control chip 9 respectively, the upper end of push rod 7 is stretched into and is put in penholder 4, pencil complete cut after the lower end of push rod 7 can move down under the promotion at nib and trigger correlation optoelectronic switch 8, control chip 9 controls motor 2 and reverses after correlation optoelectronic switch 8 triggers, and control chip 9 is integrated with timing module and motor speed control module.In the present embodiment, groove type photoelectric switch selected by correlation optoelectronic switch 8, and control chip 9 selects MCU chip, and MCU chip is conventional control chip, MCU chip carries timing module, and the data signal of motor speed control module then by exporting constantly change to motor 2 realizes.
As shown in Fig. 5, Fig. 6 and Fig. 7, put penholder 4 has and put a passage 17, put penholder 4 lower end sidepiece and offer mounting groove 18, slide block 20 is provided with in mounting groove 18, backstay 19 is fixed with between the top and bottom sidewall of mounting groove 18, slide block 20 is sheathed on backstay 19, and slide block 20 is positioned at the below of putting a passage 17 and the upper end of the bottom of slide block 20 and push rod 7 leans.Slide block 20 sidepiece has the connecting portion 21 of protrusion, and connecting portion 21 sidepiece has the cambered surface 22 that can lean with pencil point sidepiece.
As shown in Figure 2, Figure 3 and Figure 4, be provided with installing rack 10 in casing 1, be fixed with plugboard 11 bottom installing rack 10, correlation optoelectronic switch 8 is plugged on plugboard 11.Installing rack 10 is also fixed with guide plate 12, and guide plate 12 is positioned at directly over correlation optoelectronic switch 8, and the end of guide plate 12 has breach 13, and push rod 7 lower end is positioned at the breach 13 of guide plate 12 end.Push rod 7 lower end is fixed with the resistance block 14 in flat, and the lower end of a resistance block 14 is positioned at the breach 13 of guide plate 12 end.A resistance block 14 is arranged with spring 15, and a resistance block 14 sidepiece has the annular shoulder block 16 of protrusion, and the two ends of spring 15 lean respectively on the upper surface of annular shoulder block 16 and guide plate 12.
Insert at pencil and put after in penholder 4, starting switch controls motor 2 and rotates forward, control motor 2 by power transmission on power transmission shaft 6, power transmission shaft 6 drive is put penholder 4 and is rotated forward, put penholder 4 drive respectively into pen assembly 5 and planing assembly 3 work, enter while pen assembly 5 enters pen, be connected to the planing assembly 3 pairs of pencils putting penholder 4 sidepiece and plane.
After pencil completes planing, pencil continues to enter pen downwards under the drive of entering pen assembly 5, cambered surface 22 on the sidepiece of pencil point and slide block 20 side connections 21 leans, because pencil nib is tapered, therefore in the process moved down gradually along with pencil, slide block 20 just can promote downwards by pencil, slide block 20 slides along backstay 19, lean with push rod 7 upper end bottom slide block 20, therefore slide block 20 promotes push rod 7 downwards simultaneously, push rod 7 is moved down, push rod 7 lower end overcome spring 15 elastic force effect and between the transmitter making the resistance block 14 being connected to push rod 7 lower end extend into correlation optoelectronic switch 8 and recipient, and light is cut off thus triggers correlation optoelectronic switch 8, after control chip 9 receives the signal that correlation optoelectronic switch 8 is triggered, timing module on control chip 9 starts timing, in timing course, planing assembly 3 can carry out light pen to the nib sidepiece of pencil, after timing reaches setting value, control chip 9 controls motor 2 again and reverses, because motor 2 reverses, therefore power transmission shaft 6 is driven to rotate backward, and finally drive into pen assembly 5 counteragent, thus pencil is exited from the passage 17 of putting put in penholder 4.Owing to planing in timing course, assembly 3 pairs of pencil point sidepieces carry out light pen, therefore a card phenomenon would not occur in the process of moving back pen.
Because the distance between the transmitter of correlation optoelectronic switch 8 and receiver is general all less, in the process that push rod 7 moves down, cause to prevent push rod 7 lower end from skew occurring cannot stretching in correlation optoelectronic switch 8 light is cut off, therefore the guide plate 12 of a band breach 13 is set directly over correlation optoelectronic switch 8, make push rod 7 lower end be positioned at breach 13, this makes it possible to ensure that the position of push rod 7 lower end can not offset.When pencil is from after putting and exiting in penholder 4, push rod 7 upwards resets under the elastic force effect of spring 15, and promotes the slide block 20 be positioned at above push rod 7 and be moved upward to original state.
This electric pencil sharpener move back a trigger mechanism, utilize correlation optoelectronic switch 8 and control chip 9 as the control section moving back a trigger mechanism, because correlation optoelectronic switch 8 has highly sensitive, the advantages such as the response time is fast, therefore when pencil completes planing downward extruding slide block 20 and makes a resistance block 14 move in correlation optoelectronic switch 8, correlation optoelectronic switch 8 can be triggered rapidly and send a signal to the enterprising row relax of control chip 9 in time, thus also make a trigger mechanism that moves back of this electric pencil sharpener react sensitiveer, what can realize pencil in time moves back pen.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. an electric pencil sharpener move back a trigger mechanism, be arranged in the casing (1) of electric pencil sharpener, motor (2) is provided with in casing (1), be connected with putting penholder (4) and entering pen assembly (5) of planing assembly (3), motor (2) and put between penholder (4) and be provided with power transmission shaft (6), it is characterized in that, originally move back a trigger mechanism and comprise the push rod (7) be arranged in power transmission shaft (6), be located at the correlation optoelectronic switch (8) in casing (1) and control chip (9), described correlation optoelectronic switch (8) and motor (2) are electrically connected with control chip (9) respectively, the upper end of described push rod (7) is stretched into and is put in penholder (4), pencil complete cut after the lower end of described push rod (7) can move down under the promotion at nib and trigger correlation optoelectronic switch (8), (9) are integrated with timing module to described control chip, timing module described after correlation optoelectronic switch (8) triggers starts timing and control chip (9) controls motor (2) reversion after timing module timing to setting value, described penholder (4) lower end sidepiece of putting offers mounting groove (18), be provided with slide block (20) in described mounting groove (18), and the upper end of the bottom of slide block (20) and push rod (7) leans, described slide block (20) sidepiece has the connecting portion (21) of protrusion, and described connecting portion (21) sidepiece has the cambered surface (22) that can lean with pencil point sidepiece.
2. electric pencil sharpener according to claim 1 move back a trigger mechanism, it is characterized in that, installing rack (10) is provided with in described casing (1), described installing rack (10) bottom is fixed with plugboard (11), and described correlation optoelectronic switch (8) is plugged on plugboard (11).
3. electric pencil sharpener according to claim 2 move back a trigger mechanism, it is characterized in that, described installing rack (10) is also fixed with guide plate (12), described guide plate (12) is positioned at directly over correlation optoelectronic switch (8), the end of described guide plate (12) has breach (13), and described push rod (7) lower end is positioned at the breach (13) of guide plate (12) end.
4. electric pencil sharpener according to claim 3 move back a trigger mechanism, it is characterized in that, described push rod (7) lower end is fixed with the resistance block (14) in flat, and the lower end of a described resistance block (14) is positioned at the breach (13) of guide plate (12) end.
5. electric pencil sharpener according to claim 4 move back a trigger mechanism, it is characterized in that, a described resistance block (14) is arranged with spring (15), a described resistance block (14) sidepiece has the annular shoulder block (16) of protrusion, and the two ends of described spring (15) lean respectively on the upper surface of annular shoulder block (16) and guide plate (12).
6. the electric pencil sharpener according to claim 1 or 2 or 3 or 4 or 5 move back a trigger mechanism, it is characterized in that, described put penholder (4) has put a passage (17), backstay (19) is fixed with between the top and bottom sidewall of described mounting groove (18), described slide block (20) is sheathed on backstay (19), and described slide block (20) is positioned at the below of putting a passage (17).
7. the electric pencil sharpener according to claim 1 or 2 or 3 or 4 or 5 move back a trigger mechanism, it is characterized in that, described control chip (9) is also integrated with motor speed control module.
8. the electric pencil sharpener according to claim 1 or 2 or 3 or 4 or 5 move back a trigger mechanism, it is characterized in that, described control chip (9) is MCU chip.
9. the electric pencil sharpener according to claim 1 or 2 or 3 or 4 or 5 move back a trigger mechanism, it is characterized in that, described correlation optoelectronic switch (8) is groove type photoelectric switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370661.3A CN104149529B (en) | 2014-07-30 | 2014-07-30 | A kind of electric pencil sharpener move back a trigger mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410370661.3A CN104149529B (en) | 2014-07-30 | 2014-07-30 | A kind of electric pencil sharpener move back a trigger mechanism |
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| Publication Number | Publication Date |
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| CN104149529A CN104149529A (en) | 2014-11-19 |
| CN104149529B true CN104149529B (en) | 2016-04-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004188B (en) * | 2016-06-16 | 2017-12-01 | 三木控股集团有限公司 | The movement of electric pencil sharpener |
| CN107160924B (en) * | 2017-07-13 | 2019-08-02 | 崔泽昊 | The control method of pencil sharpener |
| CN109436497B (en) * | 2018-12-30 | 2024-06-14 | 海尔生物医疗科技(苏州)有限公司 | Label head and label sticking machine |
| CN111169206B (en) * | 2020-03-11 | 2024-06-14 | 三木控股集团有限公司 | Electric safety pencil sharpener |
| CN114604027B (en) * | 2022-04-15 | 2023-09-15 | 雪松 | Nib grinding assembly and grinder |
| CN116330884A (en) * | 2023-03-23 | 2023-06-27 | 宁波天天文具有限公司 | Automatic short pen withdrawing device and automatic pencil sharpener applied to same |
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| US2657672A (en) * | 1951-12-24 | 1953-11-03 | Angell Walter Eugene | Automatic motor-driven pencil sharpener |
| CN201021033Y (en) * | 2006-10-11 | 2008-02-13 | 李海霞 | Multifunctional automatic pencil-plane |
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