CN217835208U - Automatic pencil feeding mechanism of pencil sharpener - Google Patents

Abstract

The utility model discloses an automatic pencil feeding mechanism of a pencil sharpener, which comprises a mounting seat, a turntable and two groups of rotating assemblies, wherein the middle part of the mounting seat is provided with a bayonet; a plurality of convex ribs are uniformly arranged on the rotary table in the circumferential direction, and the rotary table is movably fixed on the bayonet; the rotating assembly comprises a rotating shaft, a feeding wheel and a fixing piece, and a plurality of bulges which are matched with the plurality of convex ribs to rotate are arranged on the rotating shaft; the feeding wheel comprises a first contact surface and a second contact surface, at least one friction increasing part is arranged on the first contact surface, the first contact surface is arranged in the middle of the feeding wheel, and the second contact surface is arranged at two ends of the feeding wheel; the fixing piece fixes the feeding wheel on the rotating shaft; the two groups of rotating assemblies are movably arranged on the mounting seat in parallel and in opposite directions; the pencil feeding device has the advantages that the contact between the feeding wheel and the surface of the pencil is increased, so that the surface integrity of the pencil is protected, the condition that the pencil is not uniformly cut or broken due to eccentricity during feeding is avoided, the deformation of the pencil is reduced, and the smoothness of pencil feeding is brought.

Description

Automatic pencil feeding mechanism of pencil sharpener

Technical Field

The utility model belongs to the technical field of the ware of cutting technique and specifically relates to an automatic mechanism of sending of ware of cutting.

Background

The pencil sharpener is a pencil sharpening tool and is also one of necessary stationery for students. In the process of pencil sharpening, feeding the pencil into the pencil sharpening mechanism is one of important links of the pencil sharpener. The mode that the pencil was sent into to current hand ware of cutting mainly adopt the spring centre gripping because the spring centre gripping is easy with pencil surface fish tail, influences pleasing to the eye, if when pencil surface appearance is irregular, because of the grip point atress is different, the nib cuts inhomogeneously, cuts the nib apart easily, advances a not smooth simultaneously, can appear blocking for it is hard when cutting a pen.

Disclosure of Invention

A primary object of the present invention is to provide an automatic pencil feeding mechanism for pencil sharpener, which can solve the problems of uneven surface scratch of pencil and uneven cutting of nib and unsmooth pencil feeding in the prior art.

In order to realize the above purpose, the utility model provides an automatic mechanism of sending of ware of cutting a pencil, include: the mounting seat is provided with a bayonet at the middle part; the rotary table is uniformly provided with a plurality of convex ribs in the circumferential direction and is movably fixed on the bayonet; two sets of rotating assemblies, the rotating assemblies include: the rotating shaft is provided with a plurality of bulges which are matched with the plurality of convex ribs for rotation; the feeding wheel comprises a first contact surface and a second contact surface, a plurality of friction increasing parts are arranged on the first contact surface, the first contact surface is arranged in the middle of the feeding wheel, and the second contact surface is arranged at two ends of the feeding wheel; a fixing member fixing the feed wheel to the rotating shaft; the two groups of rotating assemblies are movably arranged on the mounting seat in parallel and in opposite directions.

Further, the friction increasing part is a friction bump or a friction raised line. The friction increasing portion is a friction protruding point, the friction protruding point is evenly or unevenly distributed on the first contact surface, the friction protruding strip surrounds the feeding wheel for one circle, and the friction protruding strip is at least more than one. The friction convex points or the friction convex strips improve the friction area between the feeding wheel and the pencil, so that the pencil is fed smoothly and evenly, the surface of the pencil is protected to be intact, and the pencil point is cut evenly during cutting.

Further, 10-16 ribs are arranged on the convex ribs; the number of the bulges is 7-13. Protruding muscle and protruding so setting, when not only protruding drive protruding muscle, for the carousel provides sufficient power, both cooperations rotate the smoothness simultaneously, have effectively avoided the card pause and the disconnected core problem of pencil.

Further, the friction increasing portion is made of elastic materials. The elastic material comprises rubber, silica gel and plastic, and is elastic and soft, so that under the condition of stress between the pencil and the friction increasing part, the friction part made of the elastic material can protect the surface of the pencil contacted with the elastic material to be complete, the contact surface on the surface of the pencil is increased, the stress on the pencil is improved to be uniform, the pencil is smoothly fed, and the pencil is prevented from shaking during pencil cutting.

Further, the first contact surface is concave. The first contact surface is arranged to be concave and is just matched with the convex surface of the pencil, so that the pencil is convenient to feed.

Further, the feeding wheel is made of elastic materials. The elastic materials comprise rubber, silica gel and plastic, and the feeding wheel made of the elastic materials can protect the surface of the pencil contacted with the feeding wheel to be complete and not scratched because the elastic materials are elastic and soft. When the feeding wheel made of the elastic material clamps the pencil, the surface of the feeding wheel is expanded, the contact surface of the pencil is increased, the feeding smoothness of the pencil is improved, and the pencil is prevented from shaking during pencil cutting.

Further, the top of the convex rib is arc-shaped. Because of the smooth arc shape and the small friction force, the convex disc and the bulge are smoothly matched and the blocking phenomenon is avoided.

Further, the top of the protrusion is arc-shaped. Because of arc smooth, frictional force is little, so set up for arch and protruding muscle cooperation are smooth, avoid the card pause phenomenon.

Furthermore, two sets of mounting frame assemblies are arranged on the mounting seat, and two sets of rotating shafts are respectively mounted on the two sets of mounting frame assemblies.

Furthermore, the mounting frame assembly comprises a first mounting frame and a second mounting frame, a first hole with an inclined opening is formed in the first mounting frame, a second hole is formed in the second mounting frame, and two ends of the rotating shaft are respectively mounted in the first hole and the second hole. The first hole sets up to oblique opening, conveniently places the axis of rotation in the first hole through oblique opening, also does benefit to the change axis of rotation.

Compared with the prior art, the utility model has the advantages of a plurality of protruding cooperations in protruding muscle and the axis of rotation of many on the carousel, owing to break off the setting between protruding muscle and the flange, also break off the setting between arch and the arch, so when the carousel rotates, thereby protruding muscle and protruding meshing produce big power and drive the epaxial feed wheel rotation of axis of rotation, realize that the pencil of centre gripping on two sets of feed wheels feeds the action. Simultaneously because of set up a plurality of portions that rub that increase on the feed wheel, increased the contact that the pencil surface energy and two sets of feed wheels are more, increased frictional force between the two for the pencil lifting surface area also increases, especially under the pencil surface is the irregular shape condition, the pencil is by the feed wheel centre gripping, a plurality of portions that rub that increase can effectively live the parcel of pencil surface round this moment, avoid the pencil because of the uneven circumstances of cutting or disconnected core that the eccentric led to the fact when feeding, also reduced the deformation of pencil simultaneously, also bring the smoothness of advancing a pen.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

FIG. 1 is a schematic structural view of an automatic pencil feeding mechanism of a pencil sharpener according to an embodiment of the present invention;

FIG. 2 is an exploded view of an automatic pencil feeding mechanism of the pencil sharpener of the present invention;

wherein the above figures include the following reference numerals:

the rotary table comprises a mounting base 1, a bayonet 11, a first mounting frame 12, a first hole 121, a second mounting frame 13, a second hole 131, a rotary table 2, a convex rib 21, a rotating assembly 3, a rotating shaft 31, a protrusion 311, a feeding wheel 32, a first contact surface 321, a second contact surface 322, a friction increasing portion 323 and a fixing member 33.

Detailed Description

The embodiment of the application provides an automatic pencil mechanism that send of ware cuts, has solved among the prior art pencil surface fish tail, nib cutting inhomogeneous, advance a problem that the pen is not smooth.

The technical scheme in the embodiment of this application is for solving above-mentioned pencil surface fish tail, nib cutting inhomogeneous, advance a problem that the pen is not smooth, and the general thinking is as follows:

the plurality of convex ribs 21 and the plurality of protrusions 311 matched with the convex ribs 21 and arranged on the rotating shaft 31 are arranged on the turntable 2, and the convex ribs 21 and the convex disc are arranged in a disconnected mode, and the protrusions 311 are also arranged in a disconnected mode, so that when the turntable 2 rotates, the convex ribs 21 and the protrusions 311 are meshed to generate large power to drive the feeding wheels 32 on the rotating shaft 31 to rotate, and the feeding action of pencils clamped on the two groups of feeding wheels 32 is achieved. Meanwhile, the plurality of friction increasing portions 323 are arranged on the feeding wheel 32, so that the surface energy of the pencil is increased to be in more contact with the two groups of feeding wheels 32, the friction force between the pencil and the feeding wheels is increased, the stress area of the pencil is increased, particularly, the pencil is clamped by the feeding wheels 32 under the condition that the surface of the pencil is in an irregular shape, at the moment, the plurality of friction increasing portions 323 can effectively wrap the circle on the surface of the pencil, the condition that the pencil is cut unevenly or leads are broken due to eccentricity during feeding is avoided, the deformation of the pencil is reduced, and the smoothness of pencil feeding is also brought.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, an automatic pencil feeding mechanism of a pencil sharpener comprises a mounting base 1, a turntable 2 and two groups of rotating assemblies 3, wherein the two groups of rotating assemblies 3 are movably mounted on the mounting base 1 in parallel and in opposite directions.

It should be noted that, the parallel and opposite directions mean that one group of rotating assemblies 3 is horizontally installed, and the other group of rotating assemblies 3 is installed in the middle of the installation base 1 in parallel with one group of rotating assemblies 3 after being turned for 180 degrees, and is provided with a bayonet 11; a plurality of convex ribs 21 are uniformly arranged on the rotary table 2 in the circumferential direction, and the rotary table 2 is movably fixed on the bayonet 11; the rotating assembly 3 comprises a rotating shaft 31, a feeding wheel 32 and a fixing piece 33, wherein a plurality of bulges 311 which are matched with the plurality of convex ribs 21 for rotation are arranged on the rotating shaft 31; the feed wheel 32 comprises a first contact surface 321 and a second contact surface 322, a plurality of friction increasing parts 323 are arranged on the first contact surface 321, the first contact surface 321 is arranged in the middle of the feed wheel 32, and the second contact surface 322 is arranged at two ends of the feed wheel 32; the fixing member 33 fixes the feed wheel 32 on the rotating shaft 31;

in specific implementations, the friction increasing portion 323 is a friction bump or a friction protrusion.

In specific implementation, 10-16 ribs 21 are arranged, and the number of the ribs 21 is preferably 13; the number of the protrusions 311 is 7 to 13, and the number of the protrusions 311 is preferably 10.

In specific implementation, the friction increasing portion 323 is made of an elastic material. Optionally, the elastic material is rubber, or silicone, or plastic.

In particular, the first contact surface 321 is concave.

In particular, the feed wheel 32 is made of an elastic material. Optionally, the elastic material is rubber, or silicone, or plastic.

In specific implementation, the top of the rib 21 is circular arc.

In specific implementation, the top of the protrusion 311 is arc-shaped.

In specific implementation, two sets of mounting bracket assemblies are arranged on the mounting base 1, and two sets of rotating shafts 31 are respectively arranged on the two sets of mounting bracket assemblies.

In specific implementation, the mounting bracket assembly includes a first mounting bracket 12 and a second mounting bracket 13, a first hole 121 with an oblique opening is formed in the first mounting bracket 12, a second hole 131 is formed in the second mounting bracket 13, and two ends of the rotating shaft 31 are respectively installed in the first hole 121 and the second hole 131.

The working principle of the automatic pencil feeding mechanism of the pencil sharpener is as follows:

the turntable 2 is fixed on the bayonet 11, the feeding wheel 32 is movably sleeved on the fixing piece 33, and then the fixing piece is sleeved on the rotating shaft 31 to form the rotating assembly 3. And inserting the rotating shaft 31 at one end provided with the protrusion 311 into the second hole 131, and then installing the rotating shaft 31 at the end of the fixing piece 33 into the first hole 121 from the inclined opening, thereby completing the installation of the automatic pencil feeding mechanism of the pencil sharpener. The pencil is put on the first surface between the two feeding wheels 32, the turntable 2 rotates, the convex disc is matched with the protrusion 311 to drive the rotating shaft 31 to rotate, and the feeding wheels 32 also rotate along with the rotation, so that the feeding action of the pencil is realized.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, praise replacement, improvement and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an automatic pencil mechanism that send of ware cuts, its characterized in that includes:

the mounting seat is provided with a bayonet in the middle;

the rotary table is uniformly provided with a plurality of convex ribs in the circumferential direction and is movably fixed on the bayonet;

two sets of rotating assemblies, the rotating assemblies include:

the rotating shaft is provided with a plurality of bulges which are matched with the plurality of convex ribs for rotation;

the feeding wheel comprises a first contact surface and a second contact surface, at least one friction increasing part is arranged on the first contact surface, the first contact surface is arranged in the middle of the feeding wheel, and the second contact surfaces are arranged at two ends of the feeding wheel;

a fixing member fixing the feed wheel to the rotating shaft; the two groups of rotating assemblies are movably arranged on the mounting seat in parallel and in opposite directions.

2. The automatic pencil feeding mechanism of a pencil sharpener as claimed in claim 1, wherein the friction increasing portion is a friction bump or a friction rib.

3. The automatic pencil feeding mechanism of the pencil sharpener according to claim 1 or 2, wherein 10-16 ribs are arranged; the number of the bulges is 7-13.

4. The automatic pencil feeding mechanism of the pencil sharpener of claim 3 wherein the friction increasing portion is made of an elastic material.

5. The automatic pencil feeding mechanism of claim 4, wherein the first contact surface is concave.

6. The automatic pencil feeding mechanism of a pencil sharpener as claimed in claim 1, 2, 4 or 5, wherein said feed wheel is made of elastic material.

7. The automatic pencil feeding mechanism of a pencil sharpener as recited in claim 6, wherein the top of the rib is arc-shaped.

8. The automatic pencil feeding mechanism of a pencil sharpener of claim 7 wherein the top of said protrusion is circular arc shaped.

9. The automatic pencil feeding mechanism of claim 8, wherein two sets of mounting brackets are disposed on the mounting base, and the two sets of rotational shafts are respectively mounted on the two sets of mounting brackets.

10. The automatic pencil feeding mechanism of the pencil sharpener of claim 9, wherein the mounting rack assembly comprises a first mounting rack and a second mounting rack, the first mounting rack is provided with a first hole with an inclined opening, the second mounting rack is provided with a second hole, and two ends of the rotating shaft are respectively mounted in the first hole and the second hole.

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