CN214765948U

CN214765948U - Automatic paper shredder

Info

Publication number: CN214765948U
Application number: CN202022349487.8U
Authority: CN
Inventors: 陈光龙; 衷尔仁
Original assignee: Zhendan Shanghai Intelligent Equipment Co Ltd; Aurora Office Equipment Co Ltd Shanghai
Current assignee: Zhendan Shanghai Intelligent Equipment Co Ltd; Aurora Office Equipment Co Ltd Shanghai
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-11-19
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses an automatic paper shredder, including kneader upper cover, kneader lower cover, first carton, second carton, kneader apron, nipper, pressure paper wheelset, paper twisting wheelset, income paper mouth, arbor group, driving motor, casing and wastepaper bucket. The utility model discloses utilize the flexible characteristics of toughness of paper, combine the characteristics of unilateral paper rubbing gyro wheel, utilize the long shredded paper of paper that crooked carton changed, have clean letter and economic nature, changed the tiling of automatic kneader and put the mode of structure of paper.

Description

Automatic paper shredder

Technical Field

The utility model relates to a kneader field, in particular to automatic kneader.

Background

In the existing market, no matter the automatic paper shredder adopts a structure that two groups of paper rubbing rollers symmetrically discharge paper or one group of paper rubbing rollers asymmetrically discharge paper, protective walls are required to be added at two ends of the paper, and the shape of the whole shredder must contain the long edge of the paper, so that the shape is larger, and the paper length can not be completely compressed to simplify the structure.

The scheme of the utility model is just to the improvement that current kneader was gone on of above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides an automatic paper shredder utilizes the flexible characteristics of toughness of paper, combines the characteristics of unilateral paper rubbing gyro wheel, utilizes the long shredded paper of paper that crooked carton changes, has clean letter and economic nature, has changed the structural mode that automatic paper shredder tiled and put paper.

In order to achieve the purpose of the utility model, the technical scheme adopted for solving the technical problem is as follows:

the utility model provides an automatic paper shredder, includes paper shredder upper cover, paper shredder lower cover, first carton, second carton, paper shredder apron, nipper, presses paper wheel group, rubs paper wheel group, goes into paper mouth, arbor group, driving motor, casing and wastepaper bucket, wherein:

the upper cover of the paper shredder is fixedly connected with the lower cover of the paper shredder;

the first paper box is arranged at one end of the inner side of the lower cover of the paper shredder;

the second paper box is arranged at the other end of the inner side of the lower cover of the paper shredder, is communicated and combined with the first paper box and is used for accommodating stacked paper to be shredded;

the cover plate of the paper shredder is pivotally connected with one end of the upper cover of the paper shredder and is used for covering or opening the paper shredder;

the paper pressing plate is fixedly connected to the lower end face of the paper shredder cover plate and at least comprises a horizontal pressing plate which is used for pressing the stacked paper to be shredded placed on the first paper box when a user covers the paper shredder cover plate;

the paper pressing wheel group is arranged on one side of the paper pressing plate and corresponds to the paper twisting wheel group up and down in the vertical direction;

the paper inlet is formed in the first paper box;

the cutter shaft group is arranged in the lower cover of the paper shredder, is positioned right below the paper inlet and is used for crushing and laminating paper to be shredded;

the driving motor is arranged in the lower cover of the paper shredder, is electrically connected with the cutter shaft group and the paper rolling wheel group and is used for driving the cutter shaft group and the paper rolling wheel group to run;

the paper twisting wheel set is arranged in the lower cover of the paper shredder, is positioned on one side of the cutter shaft set, which is far away from the second paper box, and is used for rotating the paper twisting wheel set under the driving of the driving motor to twist the lowest paper positioned above the first paper box and stacked with paper to be shredded to move towards the second paper box and reversely move the paper under the action of the side wall reaction force of the second paper box so as to bend and deform at the paper inlet and then enter the paper inlet downwards;

the shell is arranged below the lower cover of the paper shredder and is fixedly connected with the lower cover of the paper shredder;

the waste paper barrel is arranged inside the shell and used for collecting shredded paper scraps.

Furthermore, the nail collecting device further comprises a nail containing groove, wherein the nail containing groove is concavely arranged at one end, far away from the second paper box, of the first paper box and is used for collecting the removed staples or clips.

Furthermore, a nail groove shaving board is arranged at the folded angle part of the joint of the nail containing groove and the bottom plane of the first paper box.

Preferably, the first paper box and the second paper box are integrally manufactured or separately manufactured.

Preferably, when the first paper box and the second paper box are manufactured in a split mode, the second paper box is connected with the first paper box and the upper cover of the paper shredder in a screwing mode, a clamping mode, a riveting mode or a welding mode.

Preferably, the sum of the lengths of the first paper box and the second paper box is equal to the paper length of the paper to be shredded.

Preferably, the length of the second sheet cassette is equal to or less than one half of the paper length.

Preferably, the length of the second paper cassette is equal to or less than one fourth of the paper length.

Preferably, the entrance width of the second carton is equal to the width of the first carton.

Further, the second carton is a conventional carton, a downward bend carton, or an upward bend carton.

Preferably, when the second carton is a conventional carton, the upper surface of the second carton and the upper surface of the first carton are in the same plane and are arranged horizontally or obliquely.

Preferably, the included angle between one side wall of the second paper box far away from the first paper box and the bottom plane of the first paper box is smaller than or equal to 90 degrees.

Furthermore, the paper pressing plate further comprises a vertical pressing plate, the horizontal pressing plate presses the stacked paper to be shredded on the first paper box, and the vertical pressing plate presses the part of the stacked paper to be shredded, close to the nail containing groove, in the nail containing groove.

Preferably, when the second paper box is a downward bending paper box, the downward bending paper box is formed by sequentially connecting an upper side wall of the downward bending paper box, a paper blocking wall of the downward bending paper box and a lower side wall of the downward bending paper box to form a half-open downward bending cavity, is fixedly connected to the lower cover of the paper shredder, is communicated and combined with the first paper box, and is used for accommodating stacked paper to be shredded.

Preferably, the first carton bottom plane is gradually inclined downward from an end away from the downwardly curved carton to an end close to the downwardly curved carton.

Preferably, the angle between the paper blocking wall of the downward bending paper box and the plane of the bottom of the first paper box is less than or equal to 90 degrees.

Furthermore, the left end and the right end of the lower side wall of the downward bending paper box are expanded outwards at the position close to the paper retaining wall of the downward bending paper box to form a first nail containing box respectively;

the bent angle parts at the joints of the left first nail containing box and the right first nail containing box and the lower side wall of the downward bending paper box are used for removing staples or clips on the lowest paper of the stacked paper;

the left and right sides of the two opposite sides of the inner side of the first nail accommodating box are both first nail shaving part opening surfaces and are communicated with the waste paper barrel for removing redundant staples or clip needles.

Preferably, the downward bending carton upper side wall, the downward bending carton paper baffle wall, the first nail containing box and the downward bending carton lower side wall are integrally manufactured.

Furthermore, the first nail containing boxes on the left and the right and the folded angle parts at the joints of the lower side walls of the downward bending paper boxes are provided with first nail shaving plates.

Furthermore, a plurality of first reinforcing ribs are arranged between the upper part of the first nail containing box and the lower side wall of the downward bending paper box.

Furthermore, a first containing cavity is formed in the lower cover of the paper shredder and used for containing the downward bending paper box.

Preferably, when the second paper box is an upward bending paper box, the upward bending paper box is formed by sequentially connecting an upper side wall of the upward bending paper box, a paper blocking wall of the upward bending paper box and a lower side wall of the upward bending paper box to form a half-open upward bending cavity, is fixedly connected to the upper cover of the paper shredder, is communicated and combined with the first paper box, and is used for accommodating stacked paper to be shredded.

Preferably, the first carton bottom plane is gradually inclined upward from an end distant from the upwardly curved carton to an end close to the upwardly curved carton.

Preferably, the included angle between the paper blocking wall of the upward bending paper box and the plane of the bottom of the first paper box is less than or equal to 90 degrees.

Furthermore, the left end and the right end of the lower side wall of the upward bending paper box are expanded outwards at the positions close to the paper retaining wall of the upward bending paper box to form second nail containing boxes respectively;

the bent angle parts at the joints of the left and right second nail containing boxes and the lower side wall of the upward bending paper box are used for removing staples or clips on the lowest paper of the stacked paper;

and the left side and the right side of the two back-to-back sides of the outer sides of the second nail containing boxes are second nail shaving part opening surfaces, and are communicated with the waste paper barrel through holes arranged at two corners of the lower cover of the paper shredder and used for removing redundant staples or clip pins.

Preferably, the upwardly curved carton upper side wall, the upwardly curved carton retaining wall, the second staple containing box and the upwardly curved carton lower side wall are integrally formed.

Furthermore, a second nail shaving plate is arranged at the corner part of the joint of the left and right second nail containing boxes and the lower side wall of the upward bending paper box.

Furthermore, a plurality of second reinforcing ribs are arranged between the upper part of the second nail containing box and the lower side wall of the upward bending paper box.

Furthermore, a second containing cavity is formed in the upper cover of the paper shredder and is used for containing the paper box which is bent upwards.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:

1. the utility model relates to an automatic kneader sets first carton bottom plane to the slope, more accords with user's use habit, and the person of facilitating the use places range upon range of paper of treating the shredded paper. Meanwhile, the friction force between stacked paper to be shredded can be reduced, so that the friction force is decomposed into a horizontal direction and a vertical direction;

2. the utility model relates to an automatic paper shredder, which can realize automatic removal of staples and/or clip, greatly improve paper shredding efficiency, save time, prevent the damage of the staples and/or clip to the whole shredder, protect the use of the whole shredder and prolong the service life of the shredder;

3. the utility model relates to an automatic kneader utilizes the flexible characteristics of toughness of paper, combines the characteristics of unilateral paper rolling gyro wheel, utilizes the long shredded paper of paper that crooked carton changed, has clean letter and economic nature, has changed the tiling of automatic kneader and has put the mode of structure of paper, has that degree of automation is high, convenient to use, safe and reliable, design benefit, structure are brief, characteristics such as cost economy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a first partial cross-sectional view of an automatic shredder according to the present invention;

FIG. 2A is a schematic view of the structure of the automatic shredder with a paper box bending downward mounted in the lower cover of the shredder (with the upper cover of the shredder); (arrow is direction of paper loading, second carton is bending carton)

FIG. 2B is a schematic view of the automatic shredder with the upper cover and the paper pressing plate hidden; (the second carton is conventional)

FIG. 3 is an overall sectional view of the automatic shredder of the present invention; (arrow indicates the direction of paper)

FIG. 4 is a schematic view of the structure of the automatic shredder with the paper box bending downward mounted in the lower cover of the shredder (without the upper cover of the shredder);

FIG. 5 is an exploded view of the paper box of the automatic shredder, between the upper and lower covers of the shredder; (arrow is Assembly direction)

FIG. 6 is a schematic view of the overall structure of the downward bending paper box of the automatic shredder; (arrow indicates the direction of paper)

FIG. 7 is a schematic view of a first chamber of the automatic shredder of the present invention;

FIG. 8 is a second partial cross-sectional view of an automatic shredder according to the present invention;

FIG. 9 is a schematic view of the mounting structure of the paper box bending upward in the automatic paper shredder according to the present invention;

FIG. 10 is a schematic view of the overall structure of the paper box bending upward in the automatic paper shredder according to the present invention; (arrow indicates the direction of paper)

FIG. 11 is a schematic view of the moving direction of the shaving nails of the automatic shredder;

FIG. 12 is a schematic view of a first paper pressing situation of the automatic paper shredder according to the present invention;

fig. 13 is a schematic diagram of a second paper pressing situation of the automatic paper shredder according to the present invention.

[ description of main symbols ]

1-upper cover of paper crusher; 2-lower cover of paper crusher; 3-a first carton; 4-a second carton; 5-cover plate of paper crusher; 6-pressing a paper board; 7-a paper pressing wheel group; 8-a paper rubbing wheel group; 9-a paper inlet; 10-a cutter shaft group; 11-a drive motor; 12-a first accommodating cavity; 13-bending the upper side wall of the carton downwards; 14-bending the carton retaining wall downwards; 15-bending the lower side wall of the carton downwards; 16-a first nail containing box; 17-first shaving nail part opening surface; 18-a first reinforcing rib; 19-nail accommodating groove; 21-bending the upper side wall of the carton upwards; 22-bending the paper box paper blocking wall upwards; 23-bending the lower side wall of the carton upwards; 24-a second nail containing box; 25-second shaving nail part opening surface; 26-a through hole; 27-a second reinforcing rib; 28-horizontal press plate; 29-vertical platen.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described and discussed below with reference to the accompanying drawings of the present invention, and it is obvious that only some examples, not all examples, of the present invention are described herein, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1 to 13, the present embodiment discloses an automatic paper shredder, which includes a paper shredder upper cover 1, a paper shredder lower cover 2, a first paper box 3, a second paper box 4, a paper shredder cover 5, a paper pressing plate 6, a paper pressing wheel group 7, a paper twisting wheel group 8, a paper inlet 9, a cutter shaft group 10, a driving motor 11, a housing (not shown) and a waste paper barrel (not shown), wherein:

the upper cover 1 of the paper shredder is fixedly connected with the lower cover 2 of the paper shredder;

the first paper box 3 is arranged at one end of the inner side of the lower cover 2 of the paper shredder;

the second paper box 4 is arranged at the other end of the inner side of the lower cover 2 of the paper shredder, is communicated and combined with the first paper box 3 and is used for containing stacked paper to be shredded;

the shredder cover plate 5 is pivotally connected with one end of the shredder upper cover 1 and is used for covering or opening the shredder;

the paper pressing plate 6 is fixedly connected to the lower end face of the paper shredder cover plate 5 and at least comprises a horizontal pressing plate 28 which is used for pressing the stacked paper to be shredded placed on the first paper box 3 when a user covers the paper shredder cover plate 5;

the paper pressing wheel group 7 is arranged on one side of the paper pressing plate 6 and corresponds to the paper rubbing wheel group 8 up and down in the vertical direction; in this embodiment, the number of the paper pressing wheel groups 7 and the number of the paper twisting wheel groups 8 are 2, the number is not limited, and the number of the paper pressing wheel groups 7 and the number of the paper twisting wheel groups 8 which are more or less are the protection range of this embodiment.

The paper inlet 9 is arranged on the first paper box 3;

the cutter shaft group 10 is arranged in the lower cover 2 of the paper shredder, is positioned right below the paper inlet 9 and is used for crushing and stacking paper to be shredded;

the driving motor 11 is arranged inside the lower cover 2 of the paper shredder, is electrically connected with the cutter shaft group 10 and the paper twisting wheel group 8, and is used for driving the cutter shaft group 10 and the paper twisting wheel group 8 to operate;

the paper twisting wheel set 8 is arranged inside the lower cover 2 of the paper shredder, is positioned on one side of the cutter shaft set 10 far away from the second paper box 4, and is used for rotating the paper twisting wheel set 8 under the driving of the driving motor 11 to twist the paper positioned on the lowest paper of the stacked paper to be shredded above the first paper box 3 to move towards the second paper box 4 and reversely move the paper under the action of the side wall reaction force of the second paper box 4 so as to bend and deform at the paper inlet 9 and enter the paper inlet 9 downwards. In this embodiment, the number of the paper rolling wheel sets 8 is two, and the number of the paper rolling wheel sets 8 in the actual design is not limited at all, and may be three or more. In addition, the design concept of the single-side paper twisting wheel group 8 is that the paper twisting structure is simplified and the economic cost is saved.

The shell is arranged below the lower cover 2 of the paper shredder and is fixedly connected with the lower cover 2 of the paper shredder;

As shown in fig. 12, the automatic paper shredder further includes a nail holding groove 19, and the nail holding groove 19 is concavely disposed at an end of the first paper box 3 away from the second paper box 4, and is used for collecting rejected staples or clips. The dog-ear part of the joint of the nail containing groove 19 and the bottom plane of the first paper box 3 is provided with a nail groove shaving plate.

Preferably, the first paper box 3 and the second paper box 4 are integrally formed or separately formed. When the first paper box 3 and the second paper box 4 are manufactured in a split manner, the first paper box 3, the second paper box 4 and the upper cover 1 of the paper shredder are respectively connected through one or more combinations of fixed connection modes such as screwing, clamping, riveting or welding, and the like, and the protection range of the scheme is obtained only by achieving the effect of fixed connection.

Preferably, the sum of the lengths of the first paper cassette 3 and the second paper cassette 4 is equal to the paper length of the paper to be shredded, and the paper length is defaulted as the length of the long side of the paper. In this embodiment, the length of the second paper box 4 is less than or equal to one half of the paper length, so that the length of the first paper box 3 can be shortened to the maximum extent, and the volume of the paper shredder can be further reduced greatly. In another embodiment, the length of the second paper box 4 is less than or equal to one fourth of the paper length, in this case, the paper pressing effect of the paper pressing plate 6 is better than that of the former case, and the paper twisting effect is also better, but correspondingly, the volume of the paper shredder is larger than that of the former case.

Preferably, the width of the entrance of the second paper box 4 is equal to the width of the first paper box 3, so that the stacked paper to be shredded above the first paper box 3 can be effectively prevented from moving left and right.

Further, the second paper box 4 is a conventional paper box, a downward bending paper box or an upward bending paper box, and is specifically divided into:

in one embodiment, when the second paper box 4 is a conventional paper box (as shown in fig. 2B), the upper surface of the second paper box 4 and the upper surface of the first paper box 3 are in the same plane and are arranged horizontally or obliquely. Preferably, an angle C between a side wall of the second carton 4 remote from the first carton 3 and a bottom plane of the first carton 3 is less than or equal to 90 degrees, see fig. 12 and 13.

Further in fig. 13, the paper pressing plate 6 further includes a vertical pressing plate 29, the horizontal pressing plate 28 presses the stacked paper to be shredded onto the first paper cassette 3, and the vertical pressing plate 29 presses the part of the stacked paper to be shredded close to the staple containing slot 19 into the staple containing slot 19.

In another embodiment, when the second paper box 4 is a downward bending paper box (as shown in fig. 1, 2A, 3 and 6), the downward bending paper box is formed by sequentially connecting a downward bending paper box upper side wall 13, a downward bending paper box paper blocking wall 14 and a downward bending paper box lower side wall 15 to form a semi-open downward bending cavity, and is fixedly connected to the shredder lower cover 2, and is communicated with and combined with the first paper box 3 for accommodating stacked paper to be shredded (a case of one paper is also applicable).

Preferably, the bottom plane of the first paper box 3 is gradually inclined downwards from one end far away from the downward bending paper box to one end close to the downward bending paper box, so that a user can conveniently place stacked paper to be shredded and the friction force between the stacked paper can be reduced. In practical operation, the bottom plane of the first paper box 3 can be horizontal, and only paper placement is not the most convenient.

In this embodiment, the length of the downward bending paper box is less than or equal to one half of the paper length, so that the length of the first paper box 3 can be shortened to the maximum extent, and the volume of the paper shredder is further greatly reduced. In another embodiment, the length of the downward bending paper box is less than one fourth of the length of the paper, in this case, the paper pressing effect of the paper pressing plate 6 is better than that of the former case, and the paper twisting effect is also better, but the volume of the paper shredder is larger than that of the former case correspondingly.

Preferably, the angle a between the downward bending paper retaining wall 14 and the bottom plane of the first paper box 3 is less than or equal to 90 degrees, referring to fig. 1.

In fig. 6, the left and right ends of the downward bending carton lower side wall 15 are respectively expanded outwards to form a first nail containing box 16 at the position close to the downward bending carton paper baffle wall 14; the folded angle parts at the joints of the left and right first nail containing boxes 16 and the lower side wall 15 of the downward bending paper box are used for removing staples or clips on the lowest paper of the stacked paper; two opposite side surfaces of the inner sides of the left and right first nail containing boxes 16 are first nail shaving part opening surfaces 17, are communicated with the waste paper barrel and are used for removing redundant staples or clip needles.

Preferably, the downwardly curved carton upper side wall 13, the downwardly curved carton retaining wall 14, the first staple containing magazine 16 and the downwardly curved carton lower side wall 15 are integrally formed.

Further, the first staple containing boxes 16 on the left and the right and the folded corner parts at the connection part of the lower side wall 15 of the downward bending paper box are provided with first shaving plates (not shown). Preferably, the first nail shaving plate is made of a metal material. In the embodiment, the first nail shaving plate made of the metal material can effectively increase nail shaving efficiency and prolong the service life of the nail shaving plate.

With further reference to fig. 6, a plurality of first reinforcing ribs 18 are disposed between the upper portion of the first magazine 16 and the lower side wall 15 of the downwardly curved carton. In practice, frequent stapling leads to accelerated wear therebetween, and the provision of the first reinforcing ribs 18 effectively extends the useful life of the downwardly bent carton.

In fig. 5, a first accommodating cavity 12 is formed on the lower cover 2 of the paper shredder for accommodating the downward bending paper box.

In another embodiment, when the second paper box 4 is an upward bending paper box (as shown in fig. 8-10), the upward bending paper box is formed by sequentially connecting an upward bending paper box upper side wall 21, an upward bending paper box paper retaining wall 22 and an upward bending paper box lower side wall 23 to form a half-open upward bending cavity, and is fixedly connected to the upper cover 1 of the paper shredder and is communicated and combined with the first paper box 3 for accommodating stacked paper to be shredded (a case of one paper is also applicable).

Preferably, the bottom plane of the first paper box 3 is gradually inclined upwards from one end far away from the upward bending paper box to one end close to the upward bending paper box, so that a user can conveniently place stacked paper to be shredded and the friction force between the stacked paper can be reduced. In practical operation, the bottom plane of the first paper box 3 can be horizontal, and only paper placement is not the most convenient.

Preferably, the length of the upwardly bent paper cassette is less than or equal to one quarter of the paper length. In this embodiment, the reason why the length of the upward bending paper box is not equal to or less than one half of the length of the paper is that the upward bending paper box is disposed in the upper cover 1 of the paper shredder, for example, the scheme of "the length of the downward bending paper box is equal to or less than one half of the length of the paper" is adopted, the height of the upper cover 1 of the paper shredder is increased invisibly, and the scheme of "the length of the upward bending paper box is less than one fourth of the length of the paper" is suitable in this embodiment under the factor of reducing the length of the first paper box 3 and the height of the upper cover 1 of the paper shredder in a balanced manner, so that the length of the first paper box 3 can be shortened to a greater extent, thereby effectively reducing the volume of the paper shredder, and at the same time, the upper cover 1 of the paper shredder is not too heavy.

Preferably, the angle B between the upward bending paper retaining wall 22 and the bottom plane of the first paper box 3 is less than or equal to 90 degrees, see fig. 8.

Further, the left and right ends of the lower side wall 23 of the upward bending paper box are expanded outwards at the position close to the paper retaining wall 22 of the upward bending paper box to form a second nail containing box 24 respectively; the folded angle parts at the joints of the two left and right second nail containing boxes 24 and the lower side wall 23 of the upward bending paper box are used for removing staples or clips on the lowest paper of the stacked paper; two opposite side surfaces of the outer sides of the left and right second nail containing boxes 24 are second shaving nail part open surfaces 25, and are communicated with the waste paper barrel through holes 26 arranged at two corners of the lower cover 2 of the paper shredder for removing redundant staples or paper clips, as shown in fig. 10. In this embodiment, the two inner sides of the left and right second nail-receiving boxes 24 are closed and inclined outward, so that the removed staples or clips can move toward the through holes 26 at the two corners of the shredder lower cover 2.

Preferably, the upwardly curved carton upper side wall 21, the upwardly curved carton retaining wall 22, the second staple containing magazine 24 and the upwardly curved carton lower side wall 23 are integrally formed.

Further, the second shaving plates (not shown) are arranged at the corner portions of the joints of the left and right second staple containers 24 and the lower side walls 23 of the upward bending cartons. Preferably, the second nail shaving plate is made of a metal material. In the embodiment, the second nail shaving plate made of the metal material can effectively increase the nail shaving efficiency and prolong the service life of the nail shaving plate.

With further reference to fig. 10, a plurality of second reinforcing ribs 27 are provided between the upper side of the second magazine 24 and the lower side wall 23 of the upwardly curved carton. In practice, frequent stapling leads to accelerated wear between the two, and the provision of the second ribs 27 effectively extends the useful life of the upwardly bent carton.

Further, a second containing cavity (not shown) is formed in the upper cover 1 of the paper shredder for containing the paper box bent upward.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an automatic paper shredder, its characterized in that, includes paper shredder upper cover, paper shredder lower cover, first carton, second carton, paper shredder apron, nipper, presses paper wheelset, rubs paper wheelset, paper feeding mouth, arbor group, driving motor, casing and wastepaper bucket, wherein:

the paper inlet is formed in the first paper box;

2. The automatic paper shredder according to claim 1, further comprising a staple containing slot, wherein the staple containing slot is concavely arranged at one end of the first paper box far away from the second paper box and is used for collecting rejected staples or clips.

3. The automatic paper shredder according to claim 2, wherein the dog-ear part of the junction of the nail-containing groove and the bottom plane of the first paper box is provided with a nail groove shaving board.

4. The automatic paper shredder according to claim 1, wherein the first paper box and the second paper box are made integrally or separately.

5. The automatic paper shredder according to claim 4, wherein when the first paper box and the second paper box are separately manufactured, the second paper box is connected with the first paper box and the upper cover of the paper shredder by screwing, clamping, riveting or welding.

6. The automatic paper shredder according to claim 1, wherein the sum of the lengths of the first paper box and the second paper box is equal to the paper length of the paper to be shredded.

7. The automatic paper shredder according to claim 6, wherein the length of the second paper box is less than or equal to one-half of the paper length.

8. The automatic paper shredder according to claim 7, wherein the length of the second paper box is less than or equal to one quarter of the paper length.

9. The automatic paper shredder according to claim 1, wherein the second paper box has an entrance width equal to the width of the first paper box.

10. The automatic paper shredder according to claim 2, wherein the second paper box is a regular paper box, a downward bending paper box or an upward bending paper box.

11. The automatic paper shredder according to claim 10, wherein when the second paper box is a regular paper box, the upper surface of the second paper box and the upper surface of the first paper box are in the same plane and are arranged horizontally or obliquely.

12. The automatic paper shredder according to claim 11, wherein an angle between a side wall of the second paper box away from the first paper box and a bottom plane of the first paper box is less than or equal to 90 degrees.

13. The automatic paper shredder according to claim 11, wherein the paper pressing plate further comprises a vertical pressing plate, the horizontal pressing plate presses the stacked papers to be shredded onto the first paper box, and the vertical pressing plate presses the part of the stacked papers to be shredded close to the nail containing groove into the nail containing groove.

14. The automatic paper shredder according to claim 10, wherein when the second paper box is a downward bending paper box, the downward bending paper box is formed by connecting an upper side wall of the downward bending paper box, a paper retaining wall of the downward bending paper box and a lower side wall of the downward bending paper box in sequence to form a half-open downward bending cavity, and is fixedly connected to the lower cover of the paper shredder and is communicated and combined with the first paper box for accommodating stacked paper to be shredded.

15. The automatic paper shredder according to claim 14, wherein the bottom plane of the first paper box is gradually inclined downward from an end away from the downward bending paper box to an end close to the downward bending paper box.

16. The automatic paper shredder according to claim 14, wherein the angle between the paper retaining wall of the downward bending paper box and the bottom plane of the first paper box is less than or equal to 90 degrees.

17. The automatic paper shredder according to claim 14, wherein the left and right ends of the lower side wall of the downward bending paper box are respectively expanded outwards to form a first nail containing box near the paper blocking wall of the downward bending paper box;

18. The automatic paper shredder according to claim 14, wherein the upper side wall of the downward bending paper box, the paper retaining wall of the downward bending paper box, the first staple containing box and the lower side wall of the downward bending paper box are integrally formed.

19. The automatic paper shredder according to claim 17, wherein the first shaving board is arranged on the corner portion of the junction between the first nail containing box and the lower side wall of the downward bending paper box.

20. The automatic paper shredder according to claim 17, wherein a plurality of first reinforcing ribs are arranged between the upper part of the first nail accommodating box and the lower side wall of the downward bending paper box.

21. The automatic paper shredder according to claim 10, wherein the lower cover of the paper shredder is formed with a first receiving cavity for receiving the downward bending paper box.

22. The automatic paper shredder according to claim 10, wherein when the second paper box is an upward bending paper box, the upward bending paper box is formed by connecting an upward bending paper box upper side wall, an upward bending paper box paper retaining wall and an upward bending paper box lower side wall in sequence to form a half-open upward bending cavity, and is fixedly connected to the upper cover of the paper shredder and is communicated and combined with the first paper box for accommodating stacked paper to be shredded.

23. The automatic paper shredder according to claim 22, wherein the first paper box bottom plane is gradually inclined upward from an end away from the upwardly curved paper box to an end close to the upwardly curved paper box.

24. The automatic paper shredder according to claim 22, wherein the angle between the paper retaining wall of the upwardly curved paper box and the bottom plane of the first paper box is less than or equal to 90 degrees.

25. The automatic paper shredder according to claim 22, wherein the left and right ends of the lower side wall of the upward bending paper box are respectively expanded outwards to form a second nail containing box near the paper blocking wall of the upward bending paper box;

26. The automatic paper shredder according to claim 22, wherein the upper side wall of the upward bending paper box, the paper retaining wall of the upward bending paper box, the second staple containing box and the lower side wall of the upward bending paper box are integrally formed.

27. The automatic paper shredder according to claim 25, wherein the second shaving board is arranged on the corner part of the junction between the two second nail containing boxes and the lower side wall of the upward bending paper box.

28. The automatic paper shredder according to claim 25, wherein a plurality of second reinforcing ribs are arranged between the upper part of the second nail holding box and the lower side wall of the upward bending paper box.

29. The automatic paper shredder according to claim 10, wherein the upper cover of the paper shredder is provided with a second receiving cavity for receiving the paper box.