CN115284774A - Pencil feeding mechanism of pencil sharpener and pencil sharpener with pencil feeding mechanism - Google Patents
Pencil feeding mechanism of pencil sharpener and pencil sharpener with pencil feeding mechanism Download PDFInfo
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- CN115284774A CN115284774A CN202211066871.4A CN202211066871A CN115284774A CN 115284774 A CN115284774 A CN 115284774A CN 202211066871 A CN202211066871 A CN 202211066871A CN 115284774 A CN115284774 A CN 115284774A
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- pencil
- pen
- clamping
- piece
- sharpener
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/02—Sharpeners for pencils or leads with gearing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a pencil feeding mechanism of a pencil sharpener, which comprises: an upper cover; a first pen clamping assembly; the second pen clamping component moves between a release position and a clamping position relative to the first pen clamping component; one or more first resilient members having a resilient tendency to position the first and second pen clamping assemblies in a release position; the connecting piece, and the inner wall has interior annular guide face, and the connecting piece moves between the first position and the second position, and through the elastic action of first elastic component, first press from both sides a subassembly and the second presss from both sides a subassembly and all supports with interior annular guide face and hold. The invention provides a pencil feeding mechanism of a pencil sharpener, which is characterized in that a first elastic piece is arranged to enable a first pencil clamping component and a second pencil clamping component to be in a loosening state at an initial position, so that a pencil is fed more labor-saving, and a connecting piece is additionally arranged to drive the first pencil clamping component and the second pencil clamping component to move to a clamping position, so that idling between the pencil and a pencil sharpening frame during pencil sharpening is prevented.
Description
Technical Field
The invention relates to the technical field of pencil feeding of pencil sharpeners, in particular to a pencil feeding mechanism of a pencil sharpener.
Background
The principle of the pencil sharpener is generally carried out by adopting the cutting knife set to rotate relative to the pencil point to perform pencil sharpening. In order to prevent the idle rotation of the pencil and the pencil sharpening frame, the pencil feeding mechanism is required to have a pencil clamping function.
If CN2528646Y discloses a pencil clamping mechanism of a pencil sharpener, which comprises a pencil clamping rear cover, a pencil clamping rotary disc with an operating handle and a pencil clamping front cover buckled on the pencil clamping rear cover, wherein the pencil clamping rear cover, the pencil clamping rotary disc and the pencil clamping front cover are provided with through holes through which pencils pass, the pencil clamping rear cover is provided with a convex ring by taking a pencil hole as the center, the edge ring wall of the disc-shaped pencil clamping rotary disc is buckled on the convex ring for positioning, three clamping tooth blocks which are linked with the pencil clamping rotary disc and are uniformly distributed on the periphery of the pencil hole of the pencil clamping rear cover are positioned between the pencil clamping rotary disc and the pencil clamping rear cover, and a reset spring is arranged between the pencil clamping rotary disc and the pencil clamping rear cover.
Or CN212353400U discloses a pencil clamping mechanism of a pencil sharpener, which comprises a fixed seat, a plurality of limiting claws and a fixed cover, wherein the limiting claws and the fixed cover are distributed along the circumference; a chuck and an elastic piece are arranged in the fixed seat, the elastic piece is positioned between the chuck and the fixed cover, and a through hole for the pencil to penetrate through is formed in the center of the chuck; one end of the elastic piece is connected with the chuck, and the other end of the elastic piece is connected with the fixed seat; when the pencil is in the extending state, the inner ends of all the limiting claws drive the chuck to rotate around the axis of the central hole, and the chuck rotates to drive the elastic piece to deform; when the pencil is not inserted, the chuck resets on the elastic part and drives the chuck to rotate for resetting, and the chuck is separated from all the limiting claws.
Or CN101314302a discloses a novel electric pencil sharpener, which is provided with at least one elastic adjusting device between a pair of pencil feeding rubber wheels, and the distance between the pencil feeding rubber wheels is adjusted by the elastic adjusting device, so that the electric pencil sharpener can cut pencils with different diameters.
In the above schemes, the pen clip device comprises an elastic part and at least two pen clip assemblies, and the elastic part has an elastic tendency of keeping the pen clip assemblies in a pen clip state. The most obvious characteristic is that the clearance between the pen clamping components is small between pen feeding. When a pencil is inserted into the pencil inlet hole, the pencil clamping assembly is abutted against the pencil, the gap between the pencil clamping assemblies is gradually enlarged to a pencil clamping position, and the elastic piece is elastically deformed to enable the pencil clamping assembly to have clamping force. But the shortcoming is also obvious, and in the process of manually advancing or withdrawing the pen, the manual advancing and withdrawing of the pen is hard to overcome the elastic force of the elastic piece.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, the pencil feeding mechanism of the pencil sharpener is provided, the first elastic piece enables the first pencil clamping component and the second pencil clamping component to be in a loosening state at the initial positions, so that the pencil feeding is labor-saving, and the connecting piece is additionally arranged to drive the first pencil clamping component and the second pencil clamping component to move to the clamping position, so that the idle rotation between the pencil and the pencil sharpening frame during pencil sharpening is prevented.
The invention also provides a pencil sharpener with the structure.
The technical scheme adopted by the invention is as follows: there is provided a pencil sharpener feeding mechanism comprising:
the upper cover is provided with a pen inlet hole;
a first pen clip assembly slidably mounted on the upper cap;
the second pen clamping assembly is slidably arranged on the upper cover and moves between an unlocking position and a clamping position relative to the first pen clamping assembly;
one or more first resilient members having a resilient tendency to position the first and second clip assemblies in a release position;
the inner wall of the connecting piece is provided with an inner annular guide surface, the connecting piece moves between a first position and a second position, and the first pen clamping assembly and the second pen clamping assembly are abutted against the inner annular guide surface under the action of the elastic force of the first elastic piece;
wherein when the connector is in a first position, the first and second pen clamping assemblies are in a release position; when the connecting piece is at the second position, the first pen clamping assembly and the second pen clamping assembly are located at the clamping position.
In the above structure, unlike the elastic member in the prior art, the first elastic member in the present invention has an elastic tendency to make the first and second pen clamping assemblies located at the unclamping position rather than the clamping position. Because the clearance between the first pen clamping component and the second pen clamping component at the clamping position is smaller than the clearance at the loosening position, the labor is saved during pen feeding. In order to overcome the elastic potential energy of the first elastic piece, the first pencil clamping assembly and the second pencil clamping assembly clamp the pencil during pencil sharpening. The pen holder is additionally provided with the connecting piece, the inner wall of the connecting piece is provided with the inner annular guide surface, and the force for moving the connecting piece up and down is converted into the force for pushing the first pen clamping assembly and the second pen clamping assembly to move horizontally under the guide of the inner annular guide surface. In the time quantum between advancing the pen and cutting, only need to reciprocate the connecting piece and can accomplish the centre gripping to the pencil, prevent to cut the pencil and cut and produce idle running between the penholder.
According to an embodiment of the present invention, the pen feeding mechanism further comprises a second elastic member, the second elastic member is abutted between the upper cover and the connecting member, and the second elastic member has an elastic tendency of positioning the connecting member at the first position; because first press from both sides a subassembly and the second presss from both sides a subassembly and all have frictional force with the connecting piece in vertical direction, the elasticity of first elastic component is difficult to make the connecting piece keep in the primary importance, so add the second elastic component between upper cover and connecting piece for guarantee that first presss from both sides a subassembly and keeps unclamping the position for the second presss from both sides a subassembly.
According to one embodiment of the invention, the pen feeding mechanism further comprises an automatic driving assembly which comprises a motor, a reduction gear set and a following disc, wherein the motor is used for driving the reduction gear set to rotate, the reduction gear set is provided with a coupling part which is used for connecting and driving the pen sharpening frame to rotate relative to the upper cover, and the following disc is connected with the coupling part and rotates synchronously with the coupling part; the speed reducing gear set comprises N speed reducing gears and is used for reducing the rotating speed output by the motor shaft so that the rotating speed of the connecting part is lower than that of the motor shaft.
According to an embodiment of the invention, a first end surface ratchet part is arranged on the follower disk, a second end surface ratchet part meshed with the first end surface ratchet part is arranged on the connecting piece, when the coupling part drives the pencil sharpening rack to rotate for pencil sharpening, the first end surface ratchet part is disengaged from the second end surface ratchet part, and the connecting piece is located at the second position; when the rotating disc drives the connecting piece to synchronously rotate under the driving of the motor, the first end surface ratchet part and the second end surface ratchet part are arranged, so that the rotating disc generates certain lifting force to the connecting piece, and the purpose of driving the connecting piece to move between the first position and the second position is achieved. And the movement of the connecting piece from the first position to the second position is carried out synchronously along with the pencil sharpening action, and the clamping of the pencil can be completed without manually shifting the connecting piece.
According to one embodiment of the invention, the first pen clamping assembly comprises a first sliding block and a first clamping piece, and the first clamping piece is rotatably arranged on the first sliding block; the first clamping piece is a pencil feeding rubber roller and is used for reducing friction force generated when the first clamping piece moves axially relative to a pencil.
According to an embodiment of the present invention, the first pen clamping assembly further includes a first connecting wheel, the first slider extends downward to form a first shaft portion, the first connecting wheel is rotatably sleeved on the first shaft portion, and the first connecting wheel has a first annular guiding surface abutted against the inner annular guiding surface; in the process that the connecting piece rises to the second position from the first position, can be along with the synchronous rotation of follow-up disk for produce relative rotation between connecting piece and first pen subassembly and the second pen subassembly that presss from both sides, the setting of first connecting wheel can offset the frictional force that produces when this relative rotation.
According to one embodiment of the invention, the second pen clamping assembly comprises a second sliding block and a second clamping piece, and the second clamping piece is rotatably arranged on the second sliding block; similarly, the second clamping member is used for reducing the friction force generated when the second clamping member moves axially relative to the pencil.
According to an embodiment of the present invention, the second pen clamping assembly further includes a second connecting wheel, the second slider extends downward to form a second shaft portion, the second connecting wheel is rotatably sleeved on the second shaft portion, and the second connecting wheel has a second annular guide surface abutting against the inner annular guide surface; similarly, the second connecting wheel is arranged to counteract the friction force generated during the relative rotation.
According to an embodiment of the present invention, the first elastic member abuts against between the first sliding block and the second sliding block; or one first elastic piece is abutted between the first sliding block and the upper cover, and the other first elastic piece is abutted between the second sliding block and the upper cover.
The invention also provides a pencil sharpener, which is provided with the pencil feeding mechanism in any one of the embodiments.
Drawings
FIG. 1 is a perspective view of a pen feeding mechanism in an embodiment of the present invention;
FIG. 2 is an exploded view of the pen feeding mechanism in an embodiment of the present invention;
FIG. 3 is a partial block diagram of a pen feeding mechanism in an embodiment of the present invention;
FIG. 4 is a partial perspective view of a pen feeding mechanism in an embodiment of the present invention;
FIG. 5 is a top view of an embodiment of a pen feeding mechanism of the present invention;
FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is a cross-sectional view of a pen feeding mechanism in an embodiment of the present invention;
FIG. 9 is an exploded view of the drive assembly in an embodiment of the present invention;
FIG. 10 is a schematic structural view of a second pen clip assembly according to an embodiment of the present invention;
fig. 11 is a schematic view of the structure of a follower disk in the embodiment of the present invention.
The reference numbers in the figures illustrate:
1. an upper cover; 2. a first pen clamping assembly; 3. a second pen clamping assembly; 4. a first elastic member; 5. an automatic drive assembly; 6. a connecting member; 7. a pencil sharpening frame; 8. a limiting sleeve; 9. a second elastic member;
1a, installing a bin; 1b, an annular connecting part; 1c, a pen inlet hole;
21. a first slider; 22. a first clamping member; 23. a first shaft portion; 24. a first connecting wheel;
23a, a first annular inclined surface;
24a, a first annular guide surface;
31. a second slider; 32. a second clamping member; 33. a second shaft portion; 34. a second fifth wheel;
33a, a second annular chamfer;
34a, a second annular guide surface;
51. a motor; 52. a reduction gear set; 53. a follower disk; 54. a gearbox bottom cover; 55. a gearbox top cover;
52a, a coupling portion;
53a, a tray body; 53b, a first end surface ratchet part; 53c, internal spline holes;
6a, an inner annular guide surface; 6b, a limiting boss; 6c, a second end surface ratchet part;
8a and an inner boss.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1 and 2, the present embodiment provides a pencil sharpener feeding mechanism, including:
the pen holder comprises an upper cover 1, wherein a pen inlet hole 1c is formed in the upper cover 1;
a first pen clamping assembly 2 which is slidably mounted on the upper cover 1;
the second pen clamping component 3 is slidably arranged on the upper cover 1, and the second pen clamping component 3 moves between a release position and a clamping position relative to the first pen clamping component 2;
one or more first resilient members 4 having a resilient tendency to position the first and second clip assemblies 2, 3 in an undamped position;
the inner wall of the connecting piece 6 is provided with an inner annular guide surface 6a, the connecting piece 6 moves between a first position and a second position, and the first pen clamping component 2 and the second pen clamping component 3 are abutted against the inner annular guide surface 6a under the action of the elastic force of the first elastic piece 4;
wherein, when the connecting piece 6 is at the first position, the first pen clamping assembly 2 and the second pen clamping assembly 3 are at the release position; when the connecting piece 6 is at the second position, the first pen clamping assembly 2 and the second pen clamping assembly 3 are at the clamping position.
Further, as shown in fig. 3, in the present embodiment, a pen inlet hole 1c is provided at a central position of the upper cover 1.
Further, in the present embodiment, the upper cover 1 has a flat circular body, and the pen inlet hole 1c is provided at a central position of the body. The round body vertically extends upwards and is surrounded to form an installation bin 1a, and the first pen clamping assembly 2 and the second pen clamping assembly 3 are slidably installed in the installation bin 1 a. The first pencil clamping component 2 and the second pencil clamping component 3 are distributed in a circle shape by taking the center of the pencil feeding hole 1c as a circle, and the first pencil clamping component 2 and the second pencil clamping component 3 are respectively propped against the pencil body to form clamping action.
Furthermore, in another embodiment, the pen feeding mechanism further includes a third pen clamping assembly, and the first pen clamping assembly 2, the second pen clamping assembly 3 and the third pen clamping assembly are circumferentially distributed with the center of the pen feeding hole 1c as a circle.
Further, as shown in fig. 4, the original body of the upper cover 1 has a downwardly extending annular connecting portion 1b for connecting the pencil sharpening frame 7. The shape of the pencil sharpening frame 7 provided with the knife group can be divided into a straight blade pencil sharpening frame 7 and a hob pencil sharpening frame 7. In the present embodiment, the pencil sharpener 7 employs a straight blade type blade set. In another embodiment, the penholder 7 is a hob-type knife set.
Further, in the present embodiment, the upper cover 1 is detachably connected with the position limiting sleeve 8, the position limiting sleeve 8 has a hollow cylindrical structure, and the lower end opening of the cylindrical structure is continued inwards to form a ring of inner boss 8a structure. The body of the connecting piece 6 is rotatably engaged with the inner race of the inner boss 8 a.
Further, as shown in fig. 5, 6 and 7, the connecting member 6 has a limiting boss 6b extending outward to form a circle on the body thereof, and the bottom surface of the limiting boss 6b abuts against the inner boss 8a to prevent the connecting member 6 from being separated from the upper cover 1.
Further, in the present embodiment, the first elastic member 4 is a wire spring.
Further, as shown in fig. 6 and 7, the connecting member 6 is a cylindrical design, and an inner annular guide surface 6a is formed at an inner side of an opening edge of the upper end of the connecting member. The first pen clamping assembly 2 and the second pen clamping assembly 3 are abutted against the inner annular guide surface 6a, so that the first pen clamping assembly 2 and the second pen clamping assembly 3 respectively form a cam mechanism with the inner annular guide surface 6a, and under the action of the cam mechanism, the axial movement of the connecting piece 6 is changed into the movement which respectively drives the first pen clamping assembly 2 and the second pen clamping assembly 3 to move transversely.
Specifically, as shown in fig. 7, the pen feeding mechanism further includes a second elastic member 9, the second elastic member 9 is abutted between the upper cover 1 and the connecting member 6, and the second elastic member 9 has an elastic tendency that the connecting member 6 is located at the first position.
Furthermore, the second elastic element 9 is a helical spring structure, and is sleeved in an annular gap formed by the connecting element 6 and the limiting sleeve 8, the upper end of the first elastic element 4 abuts against the upper cover 1, and the lower end of the first elastic element abuts against a limiting boss 6b on the connecting element 6.
Specifically, as shown in fig. 9, in the present embodiment, the pen feeding mechanism further includes an automatic driving assembly 5, which includes a motor 51, a reduction gear set 52, and a follower disk 53, wherein the motor 51 is used for driving the reduction gear set 52 to rotate, the reduction gear set 52 is provided with a coupling portion 52a, the coupling portion 52a is used for connecting and driving the pen sharpening frame 7 to rotate relative to the upper cover 1, and the follower disk 53 is connected with the coupling portion 52a and rotates synchronously with the coupling portion 52a.
Further, the reduction gear set 52 includes three reduction gears, which are a first reduction gear, a second reduction gear and a third reduction gear, respectively, and the reduction gear set 52 is used for reducing the rotation speed of the output shaft of the motor 51 so that the rotation speed of the coupling portion 52a is lower than that of the shaft of the motor 51.
Furthermore, the automatic driving assembly 5 further comprises a gear box bottom cover 54 and a gear box top cover 55, the motor 51 is fixedly mounted on the gear box bottom cover 54, and each stage of reduction gears in the reduction gear set 52 is rotatably mounted in a space formed by the gear box bottom cover 54 and the gear box top cover 55. The motor 51 is provided with a gear portion engaged with the first reduction gear on the shaft, and the third reduction gear is provided with a coupling portion 52a coaxially.
Further, in the present embodiment, the coupling portion 52a is provided with an external spline structure for facilitating the rotational insertion with the sharpening frame 7, so that the disc body 53a of the following disc 53 is provided with an internal spline hole 53c penetrating through the center thereof for fitting with the coupling portion 52a. The coupling portion 52a in this embodiment is adapted to extend into the waste chamber to be coupled to the sharpening frame 7, and the follower disk 53 is also disposed in the waste chamber.
Specifically, as shown in fig. 11, a first end surface ratchet portion 53b is disposed on the follower disc 53, a second end surface ratchet portion 6c engaged with the first end surface ratchet portion 53b is disposed on the connecting member 6, when the coupling portion 52a drives the pencil sharpening frame 7 to rotate for sharpening, the first end surface ratchet portion 53b is disengaged from the second end surface ratchet portion 6c, and the connecting member 6 is located at the second position.
Further, under the action of the second elastic member 9, the first end surface ratchet portion 53b and the second end surface ratchet portion 6c are kept in the engaged state, and the connecting member 6 is integrally located at the first position. When the rotating disc is driven by the motor 51 to rotate synchronously with the connecting part 52a, and the connecting piece 6 rotates synchronously under the driving of the rotating disc, a certain lift force is generated on the connecting piece 6 by the rotating disc under the guidance of the upper inclined surface of the first end surface ratchet part 53b until the first end surface ratchet part 53b is separated from the second end surface ratchet part 6 c. When the rotation of the rotary disk stops, the first end surface ratchet portion 53b and the second end surface ratchet portion 6c are returned to the engaged state by the second elastic member 9. Through the arrangement, the purpose of driving the connecting piece 6 to move between the first position and the second position is achieved.
Specifically, referring to fig. 3, 4 and 10, the first pen clamping assembly 2 includes a first slider 21 and a first clamping member 22, and the first clamping member 22 is rotatably mounted on the first slider 21.
Further, the first clamping member 22 is a pen inlet rubber roller for reducing the friction force generated when the first clamping member moves axially relative to the pencil.
Specifically, the first pen clamping assembly 2 further includes a first connecting wheel 24, the first slider 21 extends downward to form a first shaft portion 23, the first connecting wheel 24 is rotatably sleeved on the first shaft portion 23, and the first connecting wheel 24 has a first annular guide surface 24a abutting against the inner annular guide surface 6a.
Further, the connection member 6 is synchronously rotated along with the follower disc 53 during the process of ascending from the first position to the second position, so that the connection member 6 and the first pen clamping assembly 2 and the second pen clamping assembly 3 generate relative rotation, and the first connection wheel 24 is arranged to counteract the friction force generated during the relative rotation.
Further, a first annular inclined surface 23a is provided on the first shaft portion 23, and the inclination of the first annular inclined surface 23a corresponds to the inclination of the inner annular guide surface 6a.
Further, a first annular guide surface 24a is provided on the first connecting wheel 24, and the inclination of the first annular guide surface 24a corresponds to the inclination of the inner annular guide surface 6a so that the first annular guide surface 24a abuts against the inner annular guide surface 6a.
Specifically, the second pen clamping assembly 3 comprises a second sliding block 31 and a second clamping member 32, and the second clamping member 32 is rotatably mounted on the second sliding block 31.
Specifically, the second pen clamping assembly 3 further includes a second connecting wheel 34, the second slider 31 extends downward to form a second shaft portion 33, the second connecting wheel 34 is rotatably sleeved on the second shaft portion 33, and the second connecting wheel 34 has a second annular guide surface 34a abutting against the inner annular guide surface 6a.
Further, a second annular inclined surface 33a is provided on the second shaft portion 33, the inclination of the second annular inclined surface 33a corresponding to the inclination of the inner annular guide surface 6a.
Further, a second annular guide surface 34a is provided on the second connecting wheel 34, the inclination of the second annular guide surface 34a corresponding to the inclination of the inner annular guide surface 6a so that the second annular guide surface 34a abuts against the inner annular guide surface 6a.
Specifically, in the present embodiment, the first elastic element 4 abuts against between the first sliding block 21 and the second sliding block 31.
In another embodiment, the pen feeding mechanism includes two first elastic members 4, one of the first elastic members 4 abuts between the first slider 21 and the upper cover 1, and the other of the first elastic members 4 abuts between the second slider 31 and the upper cover 1.
In another embodiment, a sharpener is also provided, which has the pencil feeding mechanism of the embodiment.
Further, in another embodiment, the action steps of the pencil sharpener are as follows:
firstly, the upper cover 1 is connected with the pencil sharpener body, and the lower end of the pencil sharpening frame 7 is connected with the connecting part 52 a;
then, the pencil is fed, and the pencil body sequentially enters the pencil feeding hole 1c, the gap between the first clamping piece 22 and the second clamping piece 32 until the pencil is inserted into the pencil sharpening frame 7. Referring to fig. 6, under the action of the first elastic element 4, the first pen clamping assembly 2 is in a release position relative to the second pen clamping assembly 3, and under the action of the second elastic element 9, the connecting element 6 is in a first position, and the first end surface ratchet part 53b and the second end surface ratchet part 6c are in an engaged state;
then, as shown in fig. 8, the motor 51 works, the shaft of the motor 51 drives the coupling part 52a to rotate through the transmission of the reduction gear set 52, the coupling part 52a drives the pencil sharpening frame 7 and the follower disk 53 to rotate synchronously, the inclined surface on the first end surface ratchet part 53b provides an upward lifting force for the connecting piece 6, so that the connecting piece 6 moves from the first position to the second position, the second elastic piece 9 compresses, and the second end surface ratchet part 6c is disengaged from the first end surface ratchet part 53 b; the connecting piece 6 rotates along with the follow-up disc 53 in the process from engagement to disengagement, the first pen clamping assembly 2 and the second pen clamping assembly 3 and the connecting piece 6 rotate relatively, the first connecting wheel 24 and the second connecting wheel 34 can respectively reduce friction generated by relative rotation, the connecting piece 6 drives the first pen clamping assembly 2 and the second pen clamping assembly 3 to move under the action of the inner annular guide surface 6a in the process of rising, the first pen clamping assembly 2 and the second pen clamping assembly 3 move from the release position to the clamping position, the first sliding block 21 and the second sliding block 31 move oppositely, the first clamping piece 22 and the second clamping piece 32 approach oppositely and abut against the pen body, and the pen body is fixed relative to the upper cover 1 and rotates relatively with the pen sharpening frame 7 to sharpen the pen;
finally, after the pen is cut, the motor 51 stops working, the connecting member 6 moves from the second position to the first position under the action of the second elastic member 9, the first end surface ratchet portion 53b is engaged with the second end surface ratchet portion 6c, and the first pen clamping assembly 2 moves from the clamping position to the releasing position relative to the second pen clamping assembly 3, so that the pen can be taken conveniently.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A pencil sharpener advances a mechanism which characterized in that includes:
the pen holder comprises an upper cover (1), wherein a pen inlet hole (1 c) is formed in the upper cover (1);
a first pen clamping assembly (2) which is slidably arranged on the upper cover (1);
the second pen clamping component (3) is slidably arranged on the upper cover (1), and the second pen clamping component (3) moves between an unlocking position and a clamping position relative to the first pen clamping component (2);
one or more first elastic elements (4) having an elastic tendency to position said first (2) and second (3) clip assemblies in a release position;
the inner wall of the connecting piece (6) is provided with an inner annular guide surface (6 a), the connecting piece (6) moves between a first position and a second position, and the first pen clamping assembly (2) and the second pen clamping assembly (3) are abutted against the inner annular guide surface (6 a) through the elastic force action of the first elastic piece (4);
wherein, when the connecting piece (6) is at the first position, the first pen clamping assembly (2) and the second pen clamping assembly (3) are at the release position; when the connecting piece (6) is at the second position, the first pen clamping assembly (2) and the second pen clamping assembly (3) are located at the clamping position.
2. The sharpener feed mechanism of claim 1 wherein: the novel anti-theft door is characterized by further comprising a second elastic piece (9), wherein the second elastic piece (9) is abutted between the upper cover (1) and the connecting piece (6), and the second elastic piece (9) has an elastic tendency of enabling the connecting piece (6) to be located at the first position.
3. The sharpener feed mechanism of claim 1 wherein: the automatic pencil sharpener is characterized by further comprising an automatic driving assembly (5) which comprises a motor (51), a speed reduction gear set (52) and a follow-up disc (53), wherein the motor (51) is used for driving the speed reduction gear set (52) to rotate, a coupling portion (52 a) is arranged on the speed reduction gear set (52), the coupling portion (52 a) is used for connecting and driving the pencil sharpening frame (7) to rotate relative to the upper cover (1), and the follow-up disc (53) is connected with the coupling portion (52 a) and rotates synchronously with the coupling portion (52 a).
4. The sharpener feed mechanism of claim 3 wherein: a first end face ratchet part (53 b) is arranged on the follow-up disc (53), a second end face ratchet part (6 c) meshed with the first end face ratchet part (53 b) is arranged on the connecting piece (6), when the coupling part (52 a) drives the pencil sharpening rack (7) to rotate for pencil sharpening, the first end face ratchet part (53 b) is separated from the second end face ratchet part (6 c), and the connecting piece (6) is located at the second position.
5. The sharpener feeding mechanism of claim 1, wherein: the first pen clamping assembly (2) comprises a first sliding block (21) and a first clamping piece (22), and the first clamping piece (22) is rotatably arranged on the first sliding block (21).
6. The sharpener feed mechanism of claim 5 wherein: the first pen clamping assembly (2) further comprises a first connecting wheel (24), a first shaft portion (23) is formed by downward extending of the first sliding block (21), the first connecting wheel (24) is rotatably sleeved on the first shaft portion (23), and a first annular guide surface (24 a) abutted to the inner annular guide surface (6 a) is arranged on the first connecting wheel (24).
7. The sharpener feeding mechanism of claim 6, wherein: the second pen clamping assembly (3) comprises a second sliding block (31) and a second clamping piece (32), and the second clamping piece (32) is rotatably arranged on the second sliding block (31).
8. The sharpener feed mechanism of claim 7 wherein: the second pen clamping assembly (3) further comprises a second connecting wheel (34), a second shaft portion (33) is formed by downward extending of the second sliding block (31), the second connecting wheel (34) is rotatably sleeved on the second shaft portion (33), and a second annular guide surface (34 a) abutted to the inner annular guide surface (6 a) is arranged on the second connecting wheel (34).
9. The sharpener feed mechanism of claim 7 wherein: the first elastic piece (4) is abutted between the first sliding block (21) and the second sliding block (31); or one first elastic piece (4) is abutted between the first sliding block (21) and the upper cover (1), and the other first elastic piece (4) is abutted between the second sliding block (31) and the upper cover (1).
10. A pencil sharpener is characterized in that: comprising a sharpener feed mechanism as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066871.4A CN115284774B (en) | 2022-09-01 | 2022-09-01 | Pencil feeding mechanism of pencil sharpener and pencil sharpener with pencil feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066871.4A CN115284774B (en) | 2022-09-01 | 2022-09-01 | Pencil feeding mechanism of pencil sharpener and pencil sharpener with pencil feeding mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN115284774A true CN115284774A (en) | 2022-11-04 |
| CN115284774B CN115284774B (en) | 2023-07-25 |
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| CN202211066871.4A Active CN115284774B (en) | 2022-09-01 | 2022-09-01 | Pencil feeding mechanism of pencil sharpener and pencil sharpener with pencil feeding mechanism |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB119294A (en) * | 1917-10-01 | 1918-10-01 | William Herbert Terran Beattie | Improvements in Pencil Sharpeners. |
| KR20140007680A (en) * | 2012-07-10 | 2014-01-20 | 에스디아이 코퍼레이션 | Reciprocating pencil sharpener |
| CN111439058A (en) * | 2020-04-16 | 2020-07-24 | 宁海县金益文具有限公司 | Electric pencil sharpener |
| CN212353400U (en) * | 2020-04-07 | 2021-01-15 | 得力集团有限公司 | Pencil clamping mechanism of pencil sharpener |
| CN212555629U (en) * | 2020-08-31 | 2021-02-19 | 优象文化(广州)有限公司 | Spiral spring type pencil sharpener |
| CN213108808U (en) * | 2020-08-31 | 2021-05-04 | 义乌市鼎邦文体用品有限公司 | Pencil feeding device and pencil sharpener |
| CN113580821A (en) * | 2021-09-13 | 2021-11-02 | 义乌市鼎邦文体用品有限公司 | Electric pencil sharpener |
| CN216969150U (en) * | 2022-03-01 | 2022-07-15 | 宁波天天文具有限公司 | Automatic pencil sharpener capable of clamping pencil |
-
2022
- 2022-09-01 CN CN202211066871.4A patent/CN115284774B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB119294A (en) * | 1917-10-01 | 1918-10-01 | William Herbert Terran Beattie | Improvements in Pencil Sharpeners. |
| KR20140007680A (en) * | 2012-07-10 | 2014-01-20 | 에스디아이 코퍼레이션 | Reciprocating pencil sharpener |
| CN212353400U (en) * | 2020-04-07 | 2021-01-15 | 得力集团有限公司 | Pencil clamping mechanism of pencil sharpener |
| CN111439058A (en) * | 2020-04-16 | 2020-07-24 | 宁海县金益文具有限公司 | Electric pencil sharpener |
| CN212555629U (en) * | 2020-08-31 | 2021-02-19 | 优象文化(广州)有限公司 | Spiral spring type pencil sharpener |
| CN213108808U (en) * | 2020-08-31 | 2021-05-04 | 义乌市鼎邦文体用品有限公司 | Pencil feeding device and pencil sharpener |
| CN113580821A (en) * | 2021-09-13 | 2021-11-02 | 义乌市鼎邦文体用品有限公司 | Electric pencil sharpener |
| CN216969150U (en) * | 2022-03-01 | 2022-07-15 | 宁波天天文具有限公司 | Automatic pencil sharpener capable of clamping pencil |
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|---|---|
| CN115284774B (en) | 2023-07-25 |
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