CN111169207A

CN111169207A - A pencil sharpener capable of cutting different shapes and sizes of nibs

Info

Publication number: CN111169207A
Application number: CN201811349433.2A
Authority: CN
Inventors: 郑战光; 董志巍; 孙腾
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2020-05-19

Abstract

A pencil sharpener capable of cutting nibs of different shapes and sizes, comprising a housing, a manual locking device, a transparent upper cover, a collecting base, a collecting drawer, a rolling bearing, a rocking handle, a driving gear shaft, a first driven gear shaft, a first driven gear shaft, a Two driven gear shafts, short cutting knives, long cutting knives, grinding knives and filters. The specific structure and connection relationship are as follows: the axes of the drive gear shaft, the first driven gear shaft and the second driven gear shaft are on the same horizontal plane, two filter screens are inclined inside the collection base and a collection drawer is installed, and the housing is provided with There is a manual locking device, the transparent upper cover is provided with rolling bearings, one end of the driving gear shaft is provided with a rocking handle, the other end is provided with a short cutting knife, one end of the first driven gear shaft is provided with a long cutting knife, and one end of the second driven gear shaft is provided with grinding Knife. The invention can cut out pencil tips of different shapes and lengths, meet students' requirements for using pencils in different situations, and can achieve the effect of improving cutting efficiency.

Description

Pencil sharpener capable of cutting pencils of different shapes and sizes

Technical Field

The invention relates to the field of pencil sharpener, in particular to a pencil sharpener capable of sharpening pencils of different shapes and sizes.

Background

The pencil is an essential tool in study, work and life, in particular to a tool which is commonly used by pupils or for sketch and drawing. The outer parcel of pencil has the ligneous crust of one deck, need use when using to cut the pencil sword and cut the crust off and just can use, writing, drawing setting-out in-process, have different requirements to shape, thickness, the length of pencil point, and present pencil sword is difficult to satisfy the requirement usually. When a flat shape or other shapes need to be used in the writing, drawing and line drawing processes, a knife needs to be used for manual cutting, the working efficiency is low, and the knife is used for cutting, so that children are easily injured. In view of the above problems, it is important to invent a pencil sharpener capable of sharpening pencils of different shapes and different sizes to improve sharpening efficiency and meet different use requirements.

Disclosure of Invention

The invention aims to provide a pencil sharpener capable of sharpening pencils of different shapes and sizes, which has the characteristics of compact structure, convenient sharpening and use, rich functions and the like, and can sharpen pencils of different shapes, thicknesses and lengths, thereby improving sharpening efficiency and meeting different use requirements.

The invention achieves the above purpose by the following technologies: a pencil sharpener capable of cutting pencils of different shapes comprises a shell, a manual locking device, a transparent upper cover, a collecting base, a collecting drawer, a rolling bearing, a shaking handle, a driving gear shaft, a first driven gear shaft, a second driven gear shaft, a short cutting knife, a long cutting knife, a grinding knife and a filter screen. The concrete structure and the connection relation are as follows: the utility model discloses a drawer type automatic cutting machine, including driving gear axle, first driven gear axle and second driven gear axle center, all with collect the base, casing and transparent upper cover contact, collect the inside slope of base and set up two filter screens and install and collect the drawer, the casing is equipped with manual locking device, transparent upper cover is equipped with antifriction bearing, driving gear axle respectively with first driven gear axle, the second driven gear axle forms the gear engagement transmission, driving gear axle one end sets up and waves the handle, the other end sets up short sharpener, first driven gear axle one end sets up long sharpener, second driven gear axle one end sets up the sharpener. The pencil sharpener disclosed by the invention can be used for sharpening pencil points with different shapes, thicknesses and lengths, meets the use requirements of students on pencils under different conditions, and can achieve the effect of improving sharpening efficiency.

The handle is shaken to realize the disassembly function, so that the pencil sharpener is convenient to carry.

The upper cover shell is provided with a manual locking device, so that the transmission mechanism can be fixed, and the cutter can be fixed.

The upper cover shell is provided with a rolling bearing, the axis of the rolling bearing is tangent to the grinding tool face, and penpoints with different shapes, lengths and thicknesses are ground by realizing the rotation of the pencil.

The short cutting knife can only cut the pencil holder and can not cut the position of the lead, so that the original shape of the lead is kept, and the grinding knife can be used for conveniently grinding penpoints with different shapes, lengths and thicknesses.

The pencil sharpener is provided with the collection drawer and the filter screen, can realize the classified collection of pencil holder scraps and pencil lead scraps, and facilitates the recycling of the pencil lead scraps.

The axes of the long cutting knife, the short cutting knife and the grinding knife are on the same horizontal plane and can work simultaneously.

The transmission device adopts gear engagement transmission, the transmission is stable and reliable, and the transmission efficiency is high.

The grinding cutter is an inclined plane with a certain angle.

The upper left cover is a transparent shell, so that the cutting progress can be conveniently observed.

The invention has the outstanding advantages that:

1. the long cutting knife, the short cutting knife and the grinding knife can work simultaneously, and the working efficiency is improved.

2. The combination of the collecting drawer and the filter screen can realize the classified collection of the pencil holder scraps and the lead core scraps, so that the lead core scraps can be conveniently recycled.

3. Simple structure, compact structure, low cost, and grinding penpoint with different shape, length and thickness.

4. The upper left cover is a transparent shell, so that the cutting progress can be conveniently observed.

5. The handle is shaken to realize the disassembly function, and the carrying is convenient.

Drawings

Fig. 1 is a schematic structural diagram of a pencil sharpener capable of sharpening pencils of different shapes and sizes according to the present invention.

Fig. 2 is a front view of a pencil sharpener of the present invention capable of sharpening nibs of different shapes and sizes.

Fig. 3 is a rear view of a pencil sharpener of the present invention capable of sharpening nibs of different shapes and sizes.

Fig. 4 is a schematic view of a collection base of a pencil sharpener of the present invention capable of sharpening pencils of different shapes and sizes.

Fig. 5 is a schematic diagram of a short sharpener of the pencil sharpener of the present invention capable of sharpening pencil leads of different shapes and sizes.

Fig. 6 is a schematic view of a long sharpener of the present invention capable of sharpening pencil sharpener with different shape and size of nib.

Fig. 7 is a schematic view of a sharpener of the present invention capable of sharpening pencil sharpener with different shape and size of nib.

Labeled as: the device comprises a shell 1, a manual locking device 2, a transparent upper cover 3, a collecting base 4, a collecting drawer 5, a rolling bearing 6, a shaking handle 7, a driving gear shaft 8, a first driven gear shaft 9, a second driven gear shaft 10, a short cutting knife 11, a long cutting knife 12, a grinding knife 13 and a filter screen 14.

Detailed Description

The technical solution of the present invention is further illustrated by the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 7, the pencil sharpener capable of sharpening different shapes of pencil tips according to the present invention comprises: the device comprises a shell 1, a manual locking device 2, a transparent upper cover 3, a collecting base 4, a collecting drawer 5, a rolling bearing 6, a shaking handle 7, a driving gear shaft 8, a first driven gear shaft 9, a second driven gear shaft 10, a short cutting knife 11, a long cutting knife 12, a grinding knife 13 and a filter screen 14.

The concrete structure and the connection relation are as follows:

the shell 1, the transparent upper cover 3 and the collecting base 4 are connected through bolts, the disassembly is convenient, the manual locking device 2 is arranged on the upper portion of the shell 1, a transmission structure is locked through up-and-down movement, the collecting base 4 is provided with the collecting drawer 5 and the filter screen 14, the filter screen 14 is obliquely fixed in the collecting base 4, the driving gear shaft 8 is respectively in transmission with the first driven gear shaft 9 and the second driven gear shaft 10 through gear meshing, the axes of the three shafts are in the same horizontal plane, one end of the driving gear shaft 8 is provided with a rocking handle 7, the other end of the driving gear shaft is fixedly connected with a short cutting knife 11 through a bolt, one end of the first driven gear shaft 9 is fixedly connected with a long cutting knife 12 through a bolt, one end 10 of the second driven gear shaft is fixedly connected with a grinding knife 12 through a bolt, the short cutting knife 11, the long cutting knife 12 and, the axis of the grinding tool is tangent to the axial surface of the grinding tool 13.

The working principle and the process are as follows:

when a pencil needs to be cut, the manual locking device 2 is pulled out in an upward moving mode, the handle 7 is rotated and shaken to drive the driving gear shaft 8 to rotate, the first driven gear shaft 9 and the second driven gear shaft 10 are driven to rotate through gear meshing transmission, at the moment, the short cutting knife 11, the long cutting knife 12 and the grinding knife 13 rotate along with the rotation of the shafts, the knives are in a working state and can simultaneously cut the pencil, the cutting process is observed through the transparent upper cover 3, the collecting device is provided with an inclined filter screen, pencil holder cutting scraps and lead core cutting scraps can be separated, and the lead core cutting scraps are recovered.

When a round pointed pen point is needed, the pen point can be obtained by using the long cutting knife 12 when the length and the thickness of the pen point are not strictly required, the scheme can only obtain the pen point with certain thickness and length, the short cutting knife 11 can also be used for cutting the pen rod to reach the required pen point length, then the grinding knife 13 and the rolling bearing 6 rotate relatively, the pen point with the required thickness and length is obtained by grinding, and the cutting process is observed through the transparent upper cover 3, so that the cutting length can be controlled.

When other shapes such as flat pen points are needed, the short cutting knife 11 is used for cutting the pen rod to reach the needed pen point length, then the rolling bearing 6 is controlled to rotate, the grinding knife 13 is used for grinding to obtain the pen point with the needed shape, and the cutting length and the shape can be controlled as the cutting process is observed through the transparent upper cover 3.

When the pencil sharpener is not used, the manual locking device 2 is reset, the transmission device is locked, unnecessary abrasion is avoided, the shaking handle 7 is taken down, the space is saved, and the pencil sharpener is convenient to carry.

Claims

1. A pencil sharpener capable of cutting nibs of different shapes and sizes, comprising a casing, a manual locking device, a transparent upper cover, a collecting base, a collecting drawer, a rolling bearing, a rocking handle, a driving gear shaft, and a first driven gear shaft , the second driven gear shaft, the short cutting knife, the long cutting knife, the grinding knife and the filter screen, the specific structure and connection relationship are: the driving gear shaft, the first driven gear shaft and the second driven gear shaft The center is on the same horizontal plane and is in contact with the collecting base, the shell and the transparent upper cover. Two filters are inclined inside the collecting base and a collecting drawer is installed. The shell is equipped with a manual locking device, and the transparent upper cover is equipped with rolling bearings. The gear shaft forms a gear meshing transmission with the first driven gear shaft and the second driven gear shaft respectively. One end of the driving gear shaft is provided with a rocking handle, the other end is provided with a short cutting knife, one end of the first driven gear shaft is provided with a long cutting knife, and the first driven gear shaft is provided with a long cutting knife. One end of the second driven gear shaft is provided with a grinding knife. The invention can cut out pencil tips with different shapes, thicknesses and lengths, which can meet students' requirements for using pencils in different situations, and can achieve the effect of improving cutting efficiency.

2. The pencil sharpener capable of cutting different shapes and different sizes of nibs according to claim 1, wherein the upper cover shell is provided with a rolling bearing, and the axis is tangent to the grinding blade surface, and by controlling the rotation of the pencil, Grind nibs of different shapes, lengths, and thicknesses.

3. the pencil sharpener that can cut different shapes and different sizes of nibs according to claim 1, is characterized in that, described short cutting knife can only cut pencil stylus, and can not cut the position of lead core, thereby keep lead core as it is, This ensures that the sharpener can grind nibs of different shapes, lengths and thicknesses.