CN115284774B - 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
- Publication number
- CN115284774B CN115284774B CN202211066871.4A CN202211066871A CN115284774B CN 115284774 B CN115284774 B CN 115284774B CN 202211066871 A CN202211066871 A CN 202211066871A CN 115284774 B CN115284774 B CN 115284774B
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- assembly
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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 sharpener pencil feeding mechanism, comprising: an upper cover; a first pencil assembly; a second pencil assembly movable relative to the first pencil assembly between a released position and a clamped position; one or more first resilient members having a resilient tendency to urge the first and second pen-holding assemblies into a released position; the connecting piece, and the inner wall has interior annular guide face, and the connecting piece is movable between first position and second position, through the elasticity effect of first elastic component, and first clamp pen subassembly and second clamp pen subassembly all support with interior annular guide face. 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 pencil feeding is 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 a pencil and a pencil sharpening rack is prevented during pencil sharpening.
Description
Technical Field
The invention relates to the technical field of pencil sharpener pencil feeding, in particular to a pencil sharpener pencil feeding mechanism.
Background
The principle of the pencil sharpener is mainly based on the principle that a cutter set for cutting rotates relative to a pencil point to conduct pencil sharpening. In order to prevent the pencil and the pencil sharpening rack from rotating synchronously to generate idle rotation, the pencil feeding mechanism is required to have a pencil clamping function.
The pencil sharpening machine pencil clamping mechanism 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 through holes for pencils to pass through are formed in the pencil clamping rear cover, the pencil clamping rotary disc and the pencil clamping front cover, a convex ring is arranged on the pencil clamping rear cover by taking the pencil hole as the center, the edge annular 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 uniformly distributed on the pencil clamping rear cover Kong Zhouyan 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 sharpener pencil clamping mechanism which comprises a fixed seat, a plurality of limit claws and a fixed cover, wherein the limit claws and the fixed cover are distributed along the circumference, the fixed cover is fixed with the fixed seat, an inner cavity for the synchronous radial sliding of the limit claws is formed in the fixed cover, a center hole for a pencil to penetrate is formed in the center of the fixed cover, all the limit claws synchronously extend into the center hole when the pencil does not extend into the center hole, and synchronously retract into the fixed seat when the pencil extends into the fixed seat; the fixing seat is internally provided with a chuck and an elastic piece, the elastic piece is positioned between the chuck and the fixing cover, and the center of the chuck is provided with a through hole for the pencil to penetrate; 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; the inner ends of all the limit claws drive the chuck to rotate around the axis of the central hole in the state that the pencil stretches into, and the chuck rotates to drive the elastic piece to deform; and in the state that the pencil does not extend into the chuck, the chuck is reset in the elastic piece and is driven to rotate and reset, and the chuck is separated from all the limiting claws.
Or in CN101314302a, a novel electric pencil sharpener is disclosed, 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 solutions, each of the pen holders has an elastic member and at least two pen holders, and the elastic member has an elastic tendency to keep the pen holders in a pen holding state. The most obvious characteristic is that the gap between the pen clamping components is smaller between pen inlets. When a pencil is inserted into the pencil inlet hole, the pencil clamping component is abutted against the pencil, a gap between the pencil clamping components is gradually enlarged to a pencil clamping position, and the elastic piece is elastically deformed so that the pencil clamping component has clamping force. However, the disadvantage is also obvious, and in the process of manually feeding or manually withdrawing the pen, the manual feeding or withdrawing of the pen is more laborious in order to overcome the elastic force of the elastic piece.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides a pencil sharpener pencil feeding mechanism, wherein 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 position, so that pencil feeding is more labor-saving, and the connecting piece is additionally arranged for driving the first pencil clamping component and the second pencil clamping component to move to the clamping position, so that idling between the pencil and the pencil sharpening rack is prevented during pencil sharpening.
The invention also provides a pencil sharpener with the structure.
The technical scheme adopted by the invention is as follows: provided is a pencil sharpener pencil feeding mechanism, comprising:
the upper cover is provided with a pen inlet;
a first pencil assembly slidably mounted on the upper cover;
a second pencil assembly slidably mounted on the upper cover and movable relative to the first pencil assembly between a released position and a clamped position;
one or more first resilient members having a resilient tendency to urge the first and second pen holders into a released 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 propped against the inner annular guide surface under the elastic action of the first elastic piece;
wherein, when the connector is in a first position, the first and second pen-holding assemblies are in a released position; when the connecting piece is in the second position, the first pen clamping assembly and the second pen clamping assembly are located in clamping positions.
In the above structure, unlike the elastic member in the prior art, the first elastic member of the present invention has an elastic tendency to bring the first and second pen-holding assemblies into the released position rather than the clamped position. Because the gap between the first pen clamping assembly and the second pen clamping assembly at the clamping position is smaller than the gap at the loosening position, labor is saved during pen feeding. In order to overcome the elastic potential energy of the first elastic piece, the pencil is clamped by the first pencil clamping component and the second pencil clamping component during pencil sharpening. The invention adds the connecting piece with the inner wall provided with the inner annular guide surface, and converts the force of the connecting piece moving up and down 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 period between pencil feeding and pencil sharpening, the pencil can be clamped only by moving the connecting piece up and down, and idle running between pencil sharpening and the pencil sharpening rack is prevented.
According to an embodiment of the present invention, the pen feeding mechanism further includes a second elastic member, the second elastic member abuts between the upper cover and the connecting member, and the second elastic member has an elastic tendency to enable the connecting member to be located at the first position; because the first pen clamping assembly and the second pen clamping assembly both have friction force with the connecting piece in the vertical direction, the elastic force of the first elastic piece is difficult to enable the connecting piece to be kept at the first position, and therefore the second elastic piece is additionally arranged between the upper cover and the connecting piece and used for ensuring that the first pen clamping assembly is kept at the loosening position relative to the second pen clamping assembly.
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 follow-up disc, wherein the motor is used for driving the reduction gear set to rotate, the reduction gear set is provided with a connecting part, the connecting part is used for connecting and driving the penholder to rotate relative to the upper cover, and the follow-up disc is connected with the connecting part and synchronously rotates along with the connecting part; the reduction gear set includes N reduction gears for reducing the rotational speed of the motor shaft output so that the rotational speed of the coupling portion is lower than the rotational speed of the motor shaft.
According to one embodiment of the invention, a first end face ratchet part is arranged on the follow-up disc, a second end face ratchet part meshed with the first end face ratchet part is arranged on the connecting piece, and when the connecting part drives the pencil sharpening rack to rotate for sharpening, the first end face ratchet part is separated from the second end face ratchet part, and the connecting piece is positioned at the second position; when the rotating disc drives the connecting piece to synchronously rotate under the drive of the motor, the rotating disc generates a certain lifting force to the connecting piece due to the arrangement of the first end face ratchet part and the second end face ratchet part, so that the purpose of driving the connecting piece to move between the first position and the second position is achieved. And the connecting piece moves from the first position to the second position and synchronously carries out the pencil sharpening action, so that the pencil can be clamped without manually stirring 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, wherein the first clamping piece is rotatably installed on the first sliding block; the first clamping piece is a pen feeding rubber roller and is used for reducing friction force generated when the first clamping piece axially moves relative to a pencil.
According to one embodiment of the invention, the first pen clamping assembly further comprises a first connecting wheel, the first sliding block extends downwards to form a first shaft part, the first connecting wheel is rotatably sleeved on the first shaft part, and the first connecting wheel is provided with a first annular guide surface which is abutted against the inner annular guide surface; in the process that the connecting piece rises to the second position from the first position, the following disc synchronously rotates, so that relative rotation is generated between the connecting piece and the first pen clamping assembly and between the connecting piece and the second pen clamping assembly, and the friction force generated during the relative rotation can be counteracted by the arrangement of the first connecting wheel.
According to one embodiment of the invention, the second pen clamping assembly comprises a second sliding block and a second clamping piece, wherein the second clamping piece is rotatably arranged on the second sliding block; similarly, the second clamping piece is used for reducing friction force generated when the second clamping piece moves axially relative to the pencil.
According to one embodiment of the invention, the second pen clamping assembly further comprises a second connecting wheel, the second sliding block extends downwards to form a second shaft part, the second connecting wheel is rotatably sleeved on the second shaft part, and the second connecting wheel is provided with a second annular guide surface which is abutted against the inner annular guide surface; similarly, the second fifth wheel is configured to counteract the frictional force generated during the relative rotation.
According to one embodiment of the invention, the first elastic piece is abutted between the first sliding block and the second sliding block; or one first elastic piece is propped between the first sliding block and the upper cover, and the other first elastic piece is propped between the second sliding block and the upper cover.
The invention also provides a pencil sharpener, which is provided with the pencil feeding mechanism of any embodiment.
Drawings
FIG. 1 is a perspective view of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded view of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 3 is a partial block diagram of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 4 is a partial perspective view of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 5 is a top view of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a partial enlarged view at B in FIG. 6;
FIG. 8 is a cross-sectional view of a pen feeding mechanism according to an embodiment of the present invention;
FIG. 9 is an exploded view of a drive assembly according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a second pen holder assembly according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a follower disk in an embodiment of the present invention.
The reference numerals in the figures illustrate:
1. an upper cover; 2. a first pencil assembly; 3. a second pencil assembly; 4. a first elastic member; 5. an automatic drive assembly; 6. a connecting piece; 7. a pencil sharpening rack; 8. a limit sleeve; 9. a second elastic member;
1a, a mounting bin; 1b, an annular connecting part; 1c, pen inlet holes;
21. a first slider; 22. a first clamping member; 23. a first shaft portion; 24. a first connecting wheel;
23a, a first annular incline;
24a, a first annular guiding surface;
31. a second slider; 32. a second clamping member; 33. a second shaft portion; 34. a second fifth wheel;
33a, a second annular incline;
34a, a second annular guide surface;
51. a motor; 52. a reduction gear set; 53. a follower disk; 54. a gear box bottom cover; 55. a gear box top cover;
52a, a coupling;
53a, a tray body; 53b, a first end face ratchet portion; 53c, inner splined holes;
6a, an inner annular guide surface; 6b, limiting bosses; 6c, a second end face ratchet part;
8a, inner boss.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, the present embodiment provides a pencil sharpener pencil feeding mechanism, including:
the upper cover 1 is provided with a pen inlet 1c;
a first pencil assembly 2 slidably mounted on the upper cover 1;
a second pencil assembly 3 slidably mounted on said upper cover 1, said second pencil assembly 3 being movable relative to said first pencil assembly 2 between a release position and a clamping position;
one or more first elastic members 4 having an elastic tendency to bring the first and second pen holders 2, 3 into a release position;
a connecting piece 6, the inner wall of which 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 assembly 2 and the second pen clamping assembly 3 are propped against the inner annular guide surface 6a under the elastic action of the first elastic piece 4;
wherein when the connector 6 is in the first position, the first and second pen holders 2, 3 are in the released position; when the connector 6 is in the second position, the first and second pen holders 2, 3 are in the clamped position.
Further, as shown in fig. 3, in the present embodiment, the pen inlet 1c is provided at the center 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 the center position of the body. The circular body extends vertically upwards and is surrounded by a mounting bin 1a, and the first pen clamping assembly 2 and the second pen clamping assembly 3 are slidably mounted in the mounting bin 1 a. The first pencil clamping component 2 and the second pencil clamping component 3 are distributed circumferentially with the center of the pencil inlet 1c as a circle, and the first pencil clamping component 2 and the second pencil clamping component 3 respectively prop against the pencil body to form clamping actions.
Still further, 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 being circular.
Further, as shown in fig. 4, the original body of the upper cap 1 has a ring-shaped connecting portion 1b formed to extend downward for connecting with the pencil holder 7. The shape of the pencil sharpener 7 mounting knife group can be divided into a straight blade pencil sharpener 7 and a hob pencil sharpener 7. In the present embodiment, the pencil holder 7 employs a straight blade type cutter set. In another embodiment, the pencil sharpener 7 is a hob type knife set.
Further, in this embodiment, the upper cover 1 is detachably connected with the stop collar 8, the stop collar 8 has a hollow cylindrical structure, and the lower end opening of the cylindrical structure is extended inwards to form a circle of inner boss 8a structure. The body of the connecting piece 6 is rotatably matched with the inner ring of the inner boss 8 a.
Further, as shown in fig. 5, 6 and 7, a limiting boss 6b extending outwards to form a circle is provided on the body of the connecting piece 6, and the bottom surface of the limiting boss 6b abuts against the inner boss 8a to prevent the connecting piece 6 from being separated from the upper cover 1.
Further, in the present embodiment, the first elastic member 4 employs a shaped spring.
Further, as shown in fig. 6 and 7, the connecting member 6 has a cylindrical structure, and a ring of inner annular guide surface 6a is formed obliquely to the inner side of the upper opening edge. The first pencil clamping component 2 and the second pencil clamping component 3 are propped against the inner annular guide surface 6a, so that the first pencil clamping component 2 and the second pencil clamping component 3 respectively form a cam mechanism with the inner annular guide surface 6a, and under the action of the cam mechanism, the connecting piece 6 is axially moved to drive the first pencil clamping component 2 and the second pencil clamping component 3 to laterally move respectively.
Specifically, referring to fig. 7, the pen feeding mechanism further includes a second elastic member 9, where the second elastic member 9 abuts against the upper cover 1 and the connecting member 6, and the second elastic member 9 has an elastic tendency to enable the connecting member 6 to be located at the first position.
Further, the second elastic member 9 is a coil spring structure, and is sleeved in an annular gap formed by the connecting member 6 and the limiting sleeve 8, the upper end of the first elastic member 4 abuts against the upper cover 1, and the lower end abuts against the limiting boss 6b on the connecting member 6.
Specifically, as shown in fig. 9, in this 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 plate 53, where the motor 51 is used to drive the reduction gear set 52 to rotate, the reduction gear set 52 has a coupling portion 52a, the coupling portion 52a is used to connect and drive the pen holder 7 to rotate relative to the upper cover 1, and the follower plate 53 is connected to 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-stage reduction gear, a second-stage reduction gear, and a third-stage reduction gear, respectively, and the reduction gear set 52 is configured to reduce the rotational speed of the shaft output from the motor 51 so that the rotational speed of the coupling portion 52a is lower than the rotational speed of the shaft of the motor 51.
Still further, the automatic drive assembly 5 further includes a gear case bottom cover 54 and a gear case top cover 55, the motor 51 is fixedly mounted on the gear case 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 case bottom cover 54 and the gear case top cover 55. Wherein, the motor 51 is provided with a gear part meshed with the first-stage reduction gear, and the third-stage reduction gear is coaxially provided with a coupling part 52a.
Further, in the present embodiment, the coupling portion 52a is provided in an external spline structure for facilitating the rotational insertion with the pencil holder 7, so that the center of the disk body 53a of the follower disk 53 is provided with an internal spline hole 53c fitted with the coupling portion 52a therethrough. The coupling portion 52a in the present embodiment is for extending into the scrap chamber to be connected with the pencil holder 7, and the follower plate 53 is also provided in the scrap chamber.
Specifically, as shown in fig. 11, the follower plate 53 is provided with a first end face ratchet portion 53b, the connector 6 is provided with a second end face ratchet portion 6c engaged with the first end face ratchet portion 53b, and when the coupling portion 52a drives the pencil sharpener 7 to rotate for sharpening, the first end face ratchet portion 53b is disengaged from the second end face ratchet portion 6c, and the connector 6 is located at the second position.
Further, the first end face ratchet portion 53b and the second end face ratchet portion 6c are kept in an engaged state by the second elastic member 9, and the connecting member 6 is entirely in the first position. When the rotating disc is driven by the motor 51 to rotate synchronously with the coupling part 52a, and the connecting piece 6 is driven by the rotating disc to rotate synchronously, a certain lifting force is generated on the connecting piece 6 by the rotating disc under the guidance of the upper inclined surface of the first end face ratchet part 53b until the first end face ratchet part 53b is separated from the second end face ratchet part 6 c. When the rotation of the rotating disk is stopped, the first end face ratchet portion 53b and the second end face ratchet portion 6c return to the engaged state by the second elastic member 9. By the arrangement, the purpose of moving the driving connecting piece 6 between the first position and the second position is achieved.
Specifically, as shown in fig. 3, 4 and 10, the first pen holder assembly 2 includes a first slider 21 and a first holder 22, and the first holder 22 is rotatably mounted on the first slider 21.
Further, the first clamping member 22 is a pen-feeding rubber roller for reducing friction force generated when the pen-feeding rubber roller moves axially relative to the pencil.
Specifically, the first pen holder assembly 2 further includes a first connecting wheel 24, the first slider 21 extends downward to form a first shaft 23, the first connecting wheel 24 is rotatably sleeved on the first shaft 23, and the first connecting wheel 24 has a first annular guiding surface 24a abutting against the inner annular guiding surface 6a.
Further, the following disc 53 rotates synchronously during the process of lifting the connecting piece 6 from the first position to the second position, so that the connecting piece 6 rotates relatively to the first pen-holding assembly 2 and the second pen-holding assembly 3, and the first connecting wheel 24 can counteract the friction generated during the relative rotation.
Further, a first annular inclined surface 23a is provided on the first shaft portion 23, and the slope of the first annular inclined surface 23a corresponds to the slope of the inner annular guide surface 6a.
Further, a first annular guide surface 24a is provided on the first connecting wheel 24, the slope of the first annular guide surface 24a corresponding to the slope 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 holder assembly 3 includes a second slider 31 and a second clamping member 32, and the second clamping member 32 is rotatably mounted on the second slider 31.
Specifically, the second pen holder 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 guiding surface 34a abutting against the inner annular guiding surface 6a.
Further, a second annular inclined surface 33a is provided on the second shaft portion 33, and the slope of the second annular inclined surface 33a corresponds to the slope of the inner annular guide surface 6a.
Further, a second annular guide surface 34a is provided on the second fifth wheel 34, the slope of the second annular guide surface 34a corresponding to the slope 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 member 4 abuts between the first slider 21 and the second slider 31.
In another embodiment, the pen feeding mechanism includes two first elastic members 4, one of the first elastic members 4 is abutted between the first slider 21 and the upper cover 1, and the other first elastic member 4 is abutted between the second slider 31 and the upper cover 1.
In another embodiment, a pencil sharpener is also provided having the pencil feed mechanism of the present embodiment.
Further, in another embodiment the pencil sharpener comprises the following steps:
first, the upper cover 1 is connected with the pencil sharpener body, and the lower end of the pencil sharpening rack 7 is connected with the connecting part 52 a;
after that, the pencil advances, and the pencil body sequentially advances into the gap between the pencil inlet 1c, the first clamping member 22 and the second clamping member 32 until it is inserted into the pencil sharpening rack 7. Referring to fig. 6, under the action of the first elastic member 4, the first pen-holding assembly 2 is in a release position relative to the second pen-holding assembly 3, and under the action of the second elastic member 9, the connecting member 6 is in a first position, and the first end face ratchet portion 53b and the second end face ratchet portion 6c are in an engaged state;
then, as shown in fig. 8, the motor 51 works, the motor 51 shaft drives the connecting part 52a to rotate through the transmission of the reduction gear set 52, the connecting part 52a drives the pencil sharpener 7 and the follower 53 to synchronously rotate, the inclined surface on the first end surface ratchet part 53b provides 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 is compressed, and the second end surface ratchet part 6c is separated from the first end surface ratchet part 53 b; the connecting piece 6 rotates along with the follower 53 in the process of engagement to disengagement, the first pencil clamping component 2 and the second pencil clamping component 3 are relatively rotated with the connecting piece 6, friction generated by the relative rotation can be respectively reduced by the first connecting wheel 24 and the second connecting wheel 34, the first pencil clamping component 2 and the second pencil clamping component 3 are driven to move under the action of the inner annular guide surface 6a in the process of lifting the connecting piece 6, the first pencil clamping component 2 and the second pencil clamping component 3 are moved to the clamping position from the releasing position, the first sliding block 21 and the second sliding block 31 are relatively moved, the first clamping piece 22 and the second clamping piece 32 are relatively close to each other and are abutted against the pencil body, and the pencil body is fixed relative to the upper cover 1 and relatively rotated with the pencil sharpening frame 7 to perform pencil sharpening operation;
finally, after the pencil is cut, the motor 51 stops working, the connecting piece 6 moves from the second position to the first position under the action of the second elastic piece 9, the first end face ratchet part 53b is meshed with the second end face ratchet part 6c, and the first pencil clamping component 2 moves from the clamping position to the loosening position relative to the second pencil clamping component 3, so that the pencil is taken conveniently.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. A pencil sharpener pencil feed mechanism, comprising:
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) slidably mounted on the upper cover (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 mounted on the first sliding block (21);
a second pencil assembly (3) slidably mounted on said upper cover (1), said second pencil assembly (3) being movable relative to said first pencil assembly (2) between a release position and a clamping position;
one or more first elastic members (4) having an elastic tendency to bring the first and second pen-holding assemblies (2, 3) in a released position;
the connecting piece (6) is provided with an inner annular guide surface (6 a) on the inner wall, the connecting piece (6) moves between a first position and a second position, and the first pencil clamping component (2) and the second pencil clamping component (3) are propped against the inner annular guide surface (6 a) under the elastic action of the first elastic piece (4);
an automatic driving assembly (5) comprising a motor (51), a reduction gear set (52) and a follow-up disc (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 connecting part (52 a), the connecting part (52 a) is used for connecting and driving a pencil sharpener (7) to rotate relative to the upper cover (1), the follow-up disc (53) is connected with the connecting part (52 a) and synchronously rotates along with the connecting part (52 a), 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), and when the connecting part (52 a) drives the pencil sharpener (7) to rotate for sharpening, the first end face ratchet part (53 b) is disconnected from the second end face ratchet part (6 c), and the connecting piece (6) is located at the second position;
wherein, when the connecting piece (6) is in a first position, the first pen clamping assembly (2) and the second pen clamping assembly (3) are positioned at a release position; when the connecting piece (6) is in the second position, the first pen clamping assembly (2) and the second pen clamping assembly (3) are located in clamping positions.
2. The pencil sharpener of claim 1 wherein: the novel connecting piece further comprises a second elastic piece (9), wherein the second elastic piece (9) is propped between the upper cover (1) and the connecting piece (6), and the second elastic piece (9) has an elastic trend that the connecting piece (6) is located at the first position.
3. The pencil sharpener of claim 1 wherein: the first pencil clamping assembly (2) further comprises a first connecting wheel (24), the first sliding block (21) downwards extends to form a first shaft part (23), the first connecting wheel (24) is rotatably sleeved on the first shaft part (23), and the first connecting wheel (24) is provided with a first annular guide surface (24 a) which is abutted against the inner annular guide surface (6 a).
4. A pencil sharpener pencil feed mechanism as in claim 3, 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 installed on the second sliding block (31).
5. The pencil sharpener of claim 4 wherein: the second pen clamping assembly (3) further comprises a second connecting wheel (34), the second sliding block (31) downwards extends 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) is provided with a second annular guide surface (34 a) which is abutted against the inner annular guide surface (6 a).
6. The pencil sharpener of claim 4 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 propped between the first sliding block (21) and the upper cover (1), and the other first elastic piece (4) is propped between the second sliding block (31) and the upper cover (1).
7. A pencil sharpener, characterized in that: a pencil sharpener including the pencil lead mechanism of any one of claims 1-6.
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 |
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| 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 |
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| CN115284774A CN115284774A (en) | 2022-11-04 |
| CN115284774B true 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)
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|---|---|---|---|---|
| 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 |
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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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|---|---|
| CN115284774A (en) | 2022-11-04 |
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