CN211918221U

CN211918221U - Automatic pencil feeding mechanism of pencil sharpener

Info

Publication number: CN211918221U
Application number: CN201922498883.4U
Authority: CN
Inventors: 郑高伟; 曹锋; 张俊峰; 郑崇志
Original assignee: NINGBO TIANHONG STATIONERY CO LTD
Current assignee: NINGBO TIANHONG STATIONERY CO LTD
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-13
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an automatic pencil feeding mechanism of pencil sharpener, including first pencil subassembly, the second of advancing into subassembly and turbine, first pencil subassembly and/or the second of advancing advance include with turbine engaged impeller, the teeth of a cogwheel of impeller can remove and transmit the rotatory moment of torsion of turbine to impeller about in the turbine. The structure setting of the pencil sharpener is optimized, and the pencil sharpener can adapt to pencils of different sizes.

Description

Automatic pencil feeding mechanism of pencil sharpener

Technical Field

The utility model belongs to the technical field of the stationery technique and specifically relates to an automatic pencil feeding mechanism of pencil sharpener is related to.

Background

The existing electric pencil sharpener on the market is provided with an automatic pencil feeding mechanism, and the existing common automatic pencil feeding mechanism comprises a turbine and two impellers meshed with the turbine. The rotation of the turbine drives the two impellers to rotate synchronously, and the impellers rotate downwards to drive the pencil to enter the pencil sharpener for planing.

I applied for "automatic pencil feeding mechanism for pencil sharpener" before my department, application (patent) No: CN201721884313.3, including a first pen feeding component, a second pen feeding component and a turbine; the first pen feeding assembly and/or the second pen feeding assembly comprise impellers; the turbine is meshed with the impeller, the turbine is a driving part, and the impeller is a driven part; the turbine rotates to drive the impeller to rotate. The automatic pencil feeding mechanism for the pencil sharpener has the advantages of compact structure, reliable work, stable transmission, high efficiency, long service life and low noise, and can ensure constant transmission ratio.

The automatic pencil feeding mechanism can drive the pencil to be fed to be constant in size, and the mechanism cannot be freely adjusted to adapt to different sizes of pencils for pencils with different sizes. To solve the problem, the designer of the utility model develops the automatic pencil feeding mechanism of the pencil sharpener, and further improves the pencil feeding mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an automatic pencil mechanism that advances of ware cuts is provided, optimizes its structure setting, can adapt to not unidimensional pencil.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the automatic pencil feeding mechanism of the pencil sharpener comprises a first pencil feeding assembly, a second pencil feeding assembly and a turbine, wherein the first pencil feeding assembly and/or the second pencil feeding assembly comprise impellers meshed with the turbine, and gear teeth of the impellers can move left and right in the turbine and transmit torque generated by rotation of the turbine to the impellers.

The utility model discloses further preferred scheme: the surface of the turbine is provided with a plurality of racks which are distributed in a turbine shape and are in an arc line segment structure, and the gear teeth of the impeller can move left and right between two adjacent racks.

The utility model discloses further preferred scheme: the gear teeth of the impeller can move 3mm between two adjacent racks.

The utility model discloses further preferred scheme: four racks are uniformly distributed on the surface of the impeller.

The utility model discloses further preferred scheme: the turbine comprises a base plate with a circular ring structure, the rack is arranged on the base plate, and arcs at two ends of the rack are transited to the surface of the base plate.

The utility model discloses further preferred scheme: the impeller surface evenly distributed teeth of a cogwheel, the teeth of a cogwheel radially set up along the impeller.

The utility model discloses further preferred scheme: the cross section of the gear teeth is of an oval structure, and the diameter of the gear teeth is gradually increased from the top surface to the bottom surface.

The utility model discloses further preferred scheme: the long axis of the gear teeth and the tangential direction of the circumference of the impeller form an included angle.

Compared with the prior art, the utility model has the advantages of under impeller and turbine engaged state, the teeth of a cogwheel of impeller can remove about in the turbine. That is, the first pen advancing assembly and/or the second pen advancing assembly can move left and right and keep engaged with the turbine. Therefore, the automatic pencil feeding mechanism of the pencil sharpener can adapt to pencils with different sizes. The utility model provides a first advance a subassembly, the removal that the subassembly was advanced to the second is exerted by the pencil that gets into, and the pencil inserts first advance a subassembly, the second advances between the subassembly, and the pencil promotes first advance a subassembly, the second advances a subassembly and removes to the diameter of adaptation inserted pencil.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is an exploded schematic view of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 4: the automatic pencil feeding mechanism of the pencil sharpener comprises a first pencil feeding assembly 1, a second pencil feeding assembly 2 and a turbine wheel 3, wherein the first pencil feeding assembly 1 and/or the second pencil feeding assembly 2 comprises an impeller 4 meshed with the turbine wheel 3, and gear teeth 4a of the impeller 4 can move left and right in the turbine wheel 3 and transmit torque generated by rotation of the turbine wheel 3 to the impeller 4.

The utility model discloses an improve on original automatic pen mechanism of advancing, consequently the utility model discloses do not advance a subassembly 1, second at first, advance a subassembly 2 specific structural detail. The first pen feeding assembly 1 and the second pen feeding assembly 2 are identical in structure, the first pen feeding assembly 1 comprises a shaft piece, the impeller 4 is sleeved outside the shaft piece, and a pen feeding rubber roller is further sleeved outside the shaft piece. The turbine 3 rotates to drive the impeller 4 and the inner side of the shaft member to rotate downwards, and the downward-rotating impeller 4 drives the inserted pencil to move downwards.

The surface of the turbine 3 is provided with a plurality of turbine-shaped distributed racks 3a in an arc line segment structure, and the gear teeth 4a of the impeller 4 can move left and right between two adjacent racks 3 a. The utility model discloses the diameter of rack 3a has been increased for impeller 4 removes the back about, still just keeps the engaged state with turbine 3.

The gear teeth 4a of the impeller 4 can move 3mm between the adjacent two racks 3 a. For the utility model discloses a preferred structure, 4 portable 3mm of impeller mean first advance a subassembly 1, second advance and can expand 6mm outward between the subassembly 2, can satisfy the pencil size demand on the market.

Four racks 3a are uniformly distributed on the surface of the impeller 4. Is the preferred structure of the utility model.

The turbine 3 comprises a base plate 3b of a circular ring structure, a rack 3a is arranged on the base plate 3b, and two ends of the rack 3a are in arc transition to the surface of the base plate 3 b. So that no jamming occurs between the turbine 3 and the impeller 4.

The surface of the impeller 4 is evenly distributed with gear teeth 4a, and the gear teeth 4a are arranged along the radial direction of the impeller 4. The cross section of the gear teeth 4a is an oval structure, and the diameter of the gear teeth 4a is gradually increased from the top surface to the bottom surface. The major axis of the gear teeth 4a forms an angle with the tangential direction of the circumference of the impeller 4. The utility model relates to a teeth of a cogwheel 4a structure of impeller 4, the rack 3a structure of cooperation turbine 3 for

impeller

4 and 3 noiseless meshing between them of turbine, and under the circumstances that removes about impeller 4, also can keep meshing.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The automatic pencil feeding mechanism of the pencil sharpener comprises a first pencil feeding assembly, a second pencil feeding assembly and a turbine, wherein the first pencil feeding assembly and/or the second pencil feeding assembly comprise impellers meshed with the turbine, and the automatic pencil feeding mechanism is characterized in that gear teeth of the impellers can move left and right in the turbine and transmit torque generated by rotation of the turbine to the impellers.

2. The automatic pencil feeding mechanism of the pencil sharpener as claimed in claim 1, wherein a plurality of worm-like distributed racks in a circular arc segment structure are arranged on the surface of the worm wheel, and the teeth of the impeller can move left and right between two adjacent racks.

3. The automatic pencil feeding mechanism of claim 2 wherein the teeth of said impeller are movable 3mm between adjacent racks.

4. The automatic pencil feeding mechanism of a pencil sharpener as claimed in claim 2, wherein four racks are uniformly distributed on the surface of the impeller.

5. The automatic pencil feeding mechanism of claim 2 wherein the worm gear comprises a circular ring shaped base plate, the rack is disposed on the base plate, and two ends of the rack are curved to the surface of the base plate.

6. The automatic pencil feeding mechanism of a pencil sharpener of claim 1 wherein said impeller surface has uniformly distributed teeth, said teeth being disposed radially of said impeller.

7. The automatic pencil feeding mechanism of claim 6 wherein the teeth have an oval cross-section with the teeth increasing in diameter from the top surface to the bottom surface.

8. The automatic pencil feeding mechanism of claim 7 wherein the major axis of the gear teeth is angled with respect to the tangential direction of the impeller circumference.