CN213056539U

CN213056539U - Automatic pencil sharpener

Info

Publication number: CN213056539U
Application number: CN202021879248.7U
Authority: CN
Inventors: 张伟刚; 郭彤
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-27
Anticipated expiration: 2030-09-01

Abstract

The utility model provides an automatic cut a ware belongs to the stationery technical field of cutting a, including the box and set up the ware of cutting a in the box, should cut a ware and include: the hob head is detachably arranged in the box body and used for mounting a hob; the hob cutter is rotatably arranged on one side of the hob head; the motor is arranged at the bottom of the box body and can drive the hob to rotate; a pencil guide groove is arranged on the side wall of the hob holder, and an included angle alpha is formed between the pencil guide groove and the hob; the pencil gradually moves downwards along the pencil guide groove and generates a sound prompt along with the friction between the rotary cutter and the rotary cutter. The pencil sharpener forms an included angle between the hob and the hob holder; when the pencil is cut, the pencil moves downwards along the pencil guide groove and continuously advances along with the rotation of the hob, and when the hob cannot be contacted with the pencil, no pencil cutting sound appears, so that the end of pencil cutting can be judged; the problem of among the prior art lead to the refill fracture because excessively cut to need repeatedly cut the pencil, cause the waste of pencil is solved.

Description

Automatic pencil sharpener

Technical Field

The utility model belongs to the technical field of cut a stationery, concretely relates to automatic cut a ware.

Background

The traditional pencil sharpener is a pencil sharpener or a pencil sharpener, more manpower needs to be consumed by the pencil sharpener or the pencil sharpener, the point of the sharpened pencil is too thin, the point is easy to break during writing, paper is easy to penetrate through the paper, paper is broken, and the pencil sharpener or the pencil sharpener is easy to excessively sharpen a pencil lead, so that the pencil lead is wasted.

The manual ware of cutting that adopts at present can improve the efficiency of cutting a pencil, but need constantly manual rotatory hand rocker during the use, has higher requirement to the manpower, and still exists and cut excessive problem to the refill.

The automatic pencil sharpener can improve the pencil sharpening efficiency, save the labor and is very popular at present when the convenience and the efficiency are continuously pursued. When the pencil sharpener is used, a pencil needs to be inserted into the pencil sharpening port by one hand, but whether pencil sharpening is finished or not cannot be judged, so that a pencil lead is easily broken due to excessive sharpening in the pencil sharpening process, the pencil needs to be sharpened repeatedly, and pencil waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide an automatic pencil sharpener, which leads an included angle to be formed between a hob head and a hob head because the hob head inclines relative to the hob; when the pencil is cut, the pencil moves downwards along the pencil guide groove and continuously advances along with the rotation of the hob, and when the hob cannot be contacted with the pencil, no pencil cutting sound occurs, so that the completion of pencil cutting can be judged; the problem of among the prior art lead to the refill fracture because excessively cut to need repeatedly cut the pencil, cause the waste of pencil is solved.

In order to achieve the above object, the technical solution of the present invention is as follows.

The utility model provides an automatic cut a ware, includes the box and sets up the ware of cutting a ware in the box, should cut a ware and include:

the hob head is detachably arranged in the box body and used for mounting a hob;

the hob cutter is rotatably arranged on one side of the hob head; and

the motor is arranged at the bottom of the box body and can drive the hob to rotate;

a pencil guide groove is formed in the side wall of the hob holder, and an included angle alpha is formed between the pencil guide groove and the hob; the pencil gradually moves downwards along the pencil guide groove and generates a sound prompt along with the friction between the rotary cutter and the rotary cutter.

Further, a top plate is arranged at the top of the pencil sharpener, a pencil sharpening port is arranged on the top plate, and the pencil sharpening port is arranged at the top end of the pencil guide groove.

Furthermore, an electric connector is arranged on one side of the pencil sharpening opening and is electrically connected with the motor.

Still further, the electrical connector includes:

a power supply disposed at a lower side of the top plate;

the power supply key is arranged on one side of the pencil sharpening opening and used for starting the motor; and

the charging socket is arranged on one side of the power supply;

the charging socket is electrically connected with the power supply, and the power supply is respectively electrically connected with the power supply key and the motor.

Further, the included angle α is 15 °.

Further, hob connectors are fixedly arranged at two ends of the hob holder, each hob connector is sleeved at one end of each hob, and each hob is rotatably connected with 2 hob connectors.

The utility model has the advantages that:

1. the automatic pencil sharpener of the utility model leads the hob and the hob holder to form an included angle because the hob holder inclines relative to the hob; when the pencil is cut, the pencil moves downwards along the pencil guide groove and continuously advances along with the rotation of the hob, and when the hob cannot contact with the pencil, no pencil cutting sound appears, so that the completion of pencil cutting can be judged. The pencil lead grinding device is simple in structure and convenient to use, and the distance is reserved between the hob and the bottom end of the pencil guide groove, so that a pencil lead is not easy to break.

2. The utility model reduces the safety risk brought by the pencil sharpener because the hob part of the pencil sharpener is completely closed; when the pencil sharpener is used, the motor drives the hob to rotate, the pencil sharpening is not needed manually, and the pencil sharpening efficiency is improved. The hob head has the functions of stably mounting the hob on one hand and enabling the pencil to keep a proper distance from the hob all the time in the cutting process on the other hand, and the pencil cutting end can be conveniently judged through the sound generated during the cutting.

Drawings

Fig. 1 is a schematic structural view of a box and a pencil sharpener according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the hob and hob head in fig. 1.

Fig. 3 is a schematic structural diagram of the hob in fig. 2.

Fig. 4 is a schematic structural view of the top plate and the pencil sharpener in fig. 1.

Fig. 5 is a schematic structural diagram of the motor and the hob in fig. 1.

FIG. 6 is an enlarged view of a portion of the bottom of the hob of FIG. 5.

Fig. 7 is a schematic diagram of a circuit connection between a motor and an electric connector according to an embodiment of the present invention.

In the figure: 1. a box body; 2. a pencil sharpener; 3. a hob head; 31. a pencil guide groove; 32. a hob connecting piece; 33. a threaded connection; 4. hobbing cutters; 41. a second gear; 5. a motor; 51. a first gear; 6. a top plate; 61. cutting a pen mouth; 7. an electric connector; 71. a power source; 72. a power supply key; 73. a charging socket.

Detailed Description

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 merely illustrative of the invention and are not intended to limit the invention.

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.

Please refer to fig. 1, which is a schematic structural diagram of an automatic pencil sharpener according to an embodiment of the present invention. The automatic pencil sharpener comprises a box body 1 and a pencil sharpener 2 arranged in the box body 1. Because the hob part of the pencil sharpener is completely closed, the safety risk brought by the pencil sharpener is reduced.

Referring to fig. 1 to 2, the pencil sharpener 2 includes a hob head 3, a hob 4 and a motor 5.

The hob head 3 is detachably arranged in the box body 1 and used for installing the hob 4. For example, the bottom of the hob holder is provided with a threaded connector 33, the bottom of the box body is provided with a threaded hole, and the threaded connector 33 is inserted into the threaded hole and is in threaded connection with the threaded hole. Here, the threaded connection 33 is a connection shaft having an external thread on an outer surface thereof, and an internal thread adapted to the external thread of the connection shaft is provided on an inner side wall of the threaded hole so that the connection shaft can be screwed into the threaded hole. Therefore, the installation stability of the hob head and the box body is improved, and the hob head and the box body are convenient to maintain, disassemble and inspect.

Referring to fig. 2 to 4, the hob cutter 4 is rotatably arranged at one side of the hob head 3. Specifically, hob connecting pieces 32 are fixedly arranged at two ends of the hob holder 3, each hob connecting piece 32 is sleeved at one end of each hob 4, and each hob 4 is rotatably connected with 2 hob connecting pieces 32. For example, the bottom end of the hob head 3 is connected with a first hob connector, the top end of the hob head 3 is connected with a second hob connector through a fixing block, and the hob head 3 is kept away from the top end of the hob 4 due to the existence of the fixing block, so that an included angle α is formed between the hob 4 and the hob head 3. The top of fixed block is provided with the lug, conveniently pegs graft the lug on roof 6 of box 1 to can improve this installation stability who cuts a ware 2, take place to rock when avoiding using, the influence is cut an effect.

Referring to fig. 5 to 6, the motor 5 is disposed at the bottom of the housing 1 and drives the hob 4 to rotate. For example, a first gear is connected to a rotating shaft of the motor, and a second gear is arranged at the bottom of the hob and fixedly connected with the second gear; the first gear is in tooth-shaped meshing with the second gear; the motor, the first gear, the second gear and the hob are all arranged on the same axis. Here, the pivot and the first gear fixed connection of motor, second gear and hobbing cutter fixed connection, and the inner ring of second gear is provided with the second joint ring, and the outer loop of first gear is provided with first joint ring, through with first joint ring joint in the second joint ring to can make the motor drive the hobbing cutter rotatory when driving first gear revolve.

Referring to fig. 1 to 4 again, the side wall of the hob head 3 is provided with a pencil guide groove 31, and an included angle α is formed between the pencil guide groove 31 and the hob 4; the included angle alpha is 15 deg.. When the pencil sharpener is used, the pencil gradually moves downwards along the pencil guide groove 31, and the pencil sharpener 4 rubs with the hob sharpener 4 along with the rotation of the hob sharpener 4 to generate a sound prompt.

Specifically, the bottom end of the pencil guide groove 31 is not connected to the bottom end of the hob 4, and is spaced apart from the bottom end. For example, the length of pencil guide slot 31 is 5/6 ~ 6/7 of hob head 3 length, and the bottom of pencil guide slot is provided with butt portion, makes things convenient for the nib of pencil to support and holds in the bottom of pencil guide slot, is difficult to cause the fracture of pencil nib. Because an included angle alpha is formed between the hob and the pencil guide groove, and the distance between the bottom end of the pencil guide groove and the bottom end of the hob holder is 1/6-1/7 of the total length of the hob holder, the pencil still keeps a proper distance from the hob when reaching the bottom end of the pencil guide groove, and the pencil lead is protected conveniently in the cutting process. That is, since the distance between the hob and the bottom end of the pencil guide groove is set, the pencil lead of the pencil is not easy to be broken.

When the pencil sharpener is used, the motor drives the hob to rotate, a pencil is slowly inserted into the pencil sharpening opening along with the rotation of the hob, and the hob begins to sharpen the pencil; the automatic pencil sharpener needs the assistance of hands in the working process, and the pencil is pushed forward to the pencil sharpening opening by the hands. The pencil slowly moves downwards along the pencil guide groove and continuously advances along with the rotation of the hob; at the moment, friction occurs between the hob and the pencil, so that a sound prompt is given. The end of sharpening is indicated when the pencil friction sound is heard and fades away. In the pencil sharpening process, the pencil scraps fall into the box body along with the rotation of the hob. At the moment, the hob and the pencil cannot be contacted, namely, contact friction does not occur, so that the pencil sharpening sound stops, and the pencil sharpening completion can be judged. The pencil lead grinding device is simple in structure and convenient to use, and the distance is reserved between the hob and the bottom end of the pencil guide groove, so that a pencil lead is not easy to break. When the pencil sharpener is used, the motor drives the hob to rotate, the pencil sharpening is not needed manually, and the pencil sharpening efficiency is improved. The hob head has the functions of stably mounting the hob on one hand and enabling the pencil to keep a proper distance from the hob all the time in the cutting process on the other hand, and the pencil cutting end can be conveniently judged through the sound generated during the cutting.

Referring to fig. 1 and 4 again, a top plate 6 is disposed on the top of the pencil sharpener 2, and the top plate 6 is detachably connected to the box body 1; the top plate 6 is provided with a pencil sharpening opening 61, and the pencil sharpening opening 61 is arranged at the top end of the pencil guide groove 31. The pencil is inserted from the pencil sharpening opening and enters the pencil sharpener along the pencil guide groove, and the stroke of the pencil in the pencil sharpener is limited by the pencil guide groove, so that the pencil lead of the pencil is not easy to cut off. The top plate not only plays a role in sealing, but also is connected with an electric connector, and the starting of the motor is controlled through the electric connector.

Referring to fig. 1 and 7, an electric connector 7 is disposed at one side of the pencil sharpening opening 61, and the electric connector 7 is electrically connected to the motor 5. Specifically, the electric connector 7 includes a power supply 71, a power supply key 72, and a charging jack 73. The charging jack 73 is electrically connected to the power supply 71, and the power supply 71 is electrically connected to the power supply button 72 and the motor 5.

The power supply 71 is arranged on the lower side of the top plate 6; the power supply is conveniently protected, and the occupation of the outer wall space is avoided. The power supply is a storage battery, and the charging specification is 220V and 500 mA.

The power button 72 is arranged at one side of the pencil sharpening opening 61 and used for starting the motor 5; the power button is equivalent to a power switch, and the starting and the closing of the motor are controlled by the on-off of the power switch.

The charging jack 73 is disposed at one side of the power supply 71; and the power supply is supplied through the charging socket.

Before the use, need charge through the power cord power, can use after the completion of charging. During the use, press the power button and can start small-size motor, the characteristics of motor are: the energy-saving motor has the advantages of low power consumption, small volume and energy conservation from high rotating speed to low rotating speed, and the output power of the motor is 2-50W. After the pencil sharpener is used, a power supply key is pressed, the pencil sharpener is waited to stop rotating, and then the pencil sharpener can be taken down to clean up pencil scraps in the pencil sharpener.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automatic cut a ware, includes box (1) and sets up a ware (2) of cutting in box (1), its characterized in that should cut a ware (2) and include:

the hob head (3) is detachably arranged in the box body (1) and is used for mounting a hob (4);

the hob (4) is rotatably arranged on one side of the hob head (3); and

the motor (5) is arranged at the bottom of the box body (1) and can drive the hob (4) to rotate;

a pencil guide groove (31) is formed in the side wall of the hob head (3), and an included angle alpha is formed between the pencil guide groove (31) and the hob (4); the pencil gradually moves downwards along the pencil guide groove (31) and generates a sound prompt along with the friction between the rotary cutter (4) and the rotary cutter (4).

2. The automatic pencil sharpener according to claim 1, characterized in that the top of the pencil sharpener (2) is provided with a top plate (6), the top plate (6) is provided with a pencil sharpening opening (61), and the pencil sharpening opening (61) is arranged at the top end of the pencil guide groove (31).

3. The automatic pencil sharpener according to claim 2, characterized in that one side of the pencil sharpening mouth (61) is provided with an electric connector (7), the electric connector (7) being electrically connected with the motor (5).

4. The sharpener according to claim 3, wherein the electrical connector (7) comprises:

a power supply (71) provided below the top plate (6);

the power supply key (72) is arranged on one side of the pencil sharpening opening (61) and is used for starting the motor (5); and

a charging socket (73) provided on one side of the power supply (71);

the charging socket (73) is electrically connected with the power supply (71), and the power supply (71) is respectively electrically connected with the power supply key (72) and the motor (5).

5. The sharpener of claim 1 wherein said included angle α is 15 °.

6. The automatic pencil sharpener according to claim 1, wherein hob connectors (32) are fixedly arranged at both ends of the hob holder (3), each hob connector (32) is sleeved at one end of the hob (4), and the hob (4) is rotatably connected with 2 hob connectors (32).