Multi-stage crushing high-confidentiality automatic paper shredder

Abstract

The utility model belongs to the technical field of paper shredding, and particularly relates to a multi-stage crushing high-confidentiality automatic paper shredder which comprises a machine shell and the like. The machine shell is an installation carrier and a container of the paper shredder, the inner lower space of the machine shell is a shredded paper collecting cavity, a baffle is hinged to an opening in the side wall of the shredded paper collecting cavity of the machine shell, and a paper inlet allowing paper to be placed in is formed in the top of the machine shell. The motor I is mounted on one side of the inner wall of the upper part of the shell; the support is fixedly connected to the inner wall of the upper portion of the machine shell, and the support is an inclined and concave supporting plate. The paper shredding roller is driven by the first motor to synchronously and reversely rotate, paper is preliminarily shredded, it is ensured that the paper is fully torn before entering secondary crushing, the second-stage crushing part is located under the paper shredding roller in a matched mode, the cutting blade is driven by the second motor to conduct further crushing, it is ensured that the paper is thoroughly crushed into small particles, and the paper crushing efficiency is improved. And the risk of information recovery is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the paper shredding technical field, and particularly relates to a high-security automatic paper shredder with multi-stage shredding. BACKGROUND

[0002] With the rapid development of information technology, paper documents are gradually replaced by electronic documents, but paper documents still play an important role in some fields. In order to protect information security and prevent important documents from being illegally obtained, it is particularly important to effectively destroy waste documents. Although the traditional cutting type paper shredder can cut the documents into small pieces, there is still a risk of recovery for highly confidential information.

[0003] The paper shredders on the market are mainly divided into strip-shaped paper shredders, cross-cut paper shredders and micro-particle paper shredders. The strip-shaped paper shredder cuts the paper into long strips, and the shredding effect is poor, and the original information can be recovered by splicing; the cross-cut paper shredder cuts the paper into small pieces, and the shredding effect is good, but there is still a risk of information recovery; the micro-particle paper shredder cuts the paper into very small particles, and the shredding effect is the best, but the equipment cost is high and the maintenance is complex. Therefore, the existing paper shredder needs to be improved, and a high-security automatic paper shredder with multi-stage shredding is designed. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a high-security automatic paper shredder with multi-stage shredding.

[0005] The technical implementation scheme of the utility model is: a high-security automatic paper shredder with multi-stage shredding, comprising a machine shell and a baffle, the machine shell is the installation carrier and container of the paper shredder, the inner lower space of the machine shell is a paper collection chamber, the opening on the side wall of the paper collection chamber of the machine shell is hinged with a baffle, and the top of the machine shell is provided with a paper inlet; further comprising: a motor one installed on one side of the upper inner wall of the machine shell; a support fixedly connected to the upper inner wall of the machine shell, the support is an inclined concave support plate; a support plate symmetrically fixedly connected to the inclined surface of the support; a paper shredding roller rotatably installed between the two support plates, the output shaft of the motor one penetrates through the support plate and is connected with the rotating shaft of one of the paper shredding rollers, and the paper shredding roller is used for preliminary crushing of the paper; a gear installed on the rotating shaft of one end of the paper shredding roller away from the motor one, the two gears are meshed with each other, one of the paper shredding rollers is driven to rotate by the motor one, and the two paper shredding rollers can synchronously and reversely rotate for crushing under the meshing of the gears on the rotating shafts of the paper shredding rollers; a secondary crushing element arranged at the bottom of the support, the secondary crushing element is located directly below the paper shredding roller, and the secondary crushing element is used for further crushing of the paper not completely crushed by the paper shredding roller, improving the fine crushing effect of the paper and reducing the risk of recovering the original information by splicing the paper.

[0006] Further, the secondary crushing piece comprises a motor two and cutting blades, the motor two is installed at the bottom of the support, a plurality of cutting blades are circumferentially installed on the output shaft of the motor two, the plurality of cutting blades are circumferentially distributed on the output shaft of the motor two in petal shape, and the cutting edges of the cutting blades are arranged at a certain inclination angle, the cutting blades can be replaced into different inclination angle models to improve the crushing demand of the cutting blades for paper sheets of different thicknesses.

[0007] Further, the paper crushing roller is detachably and rotatably installed between the two support plates, the paper crushing roller can be replaced into a model more suitable for crushing teeth according to the actual paper material to be crushed, and the good crushing effect of paper sheets of different materials can be improved by replacing different paper crushing rollers.

[0008] Further, the paper crushing machine further comprises a paper feeder, the paper feeder is installed at the paper inlet of the top of the machine shell, the paper outlet of the paper feeder is aligned with the paper inlet of the machine shell, and the paper feeder is used for automatically feeding paper into the machine shell, so that the convenience and efficiency of the paper crushing machine for paper crushing are improved.

[0009] Further, the paper crushing machine further comprises a cover plate and a lock piece, the cover plate is hingedly connected at the inlet of the upper portion of the paper feeder, the cover plate is fully covered on the inlet of the paper feeder, the lock piece is electronically integrated in the cover plate, the lock piece is used for locking the cover plate on the paper feeder, and the lock piece is a password lock or a key lock.

[0010] Further, the paper crushing machine further comprises a limiting plate, a two-way air cylinder and a connecting rod, two limiting plates are symmetrically and slidably arranged at the paper inlet of the paper feeder, the limiting plates are used for limiting paper sheets of different sizes at the inlet of the paper feeder, the two-way air cylinder is installed at the back of the paper feeder, the two-way telescopic rods of the two-way air cylinder are symmetrically connected with the connecting rods, the connecting rods on the same side are connected with the limiting plates, and the two-way air cylinder drives the limiting plates at the inlet of the paper feeder to adjust different distances through the connecting rods, so that paper sheets of different sizes can be adapted, and the paper sheets of different sizes can be neatly fed into the paper inlet of the paper feeder, and the paper feeding stability is improved.

[0011] The paper crushing machine has the following advantages:

[0012] 1. The motor one drives the paper crushing roller to synchronously and reversely rotate, and the paper is preliminarily crushed, so that the paper is fully torn before entering the secondary crushing piece, the cutting blades are driven by the motor two to further crush, the paper is completely crushed into small particles, and the risk of information recovery is reduced.

[0013] 2. The utility model discloses can be detachable through the paper crushing roller, can replace the crushing tooth of different mode according to the actual broken paper material quality, improve the good crushing effect of paper of different material quality, and the cutting blade in secondary crushing spare can be replaced into the mode of different inclination, adapt to paper of different thickness, improve the crushing effect.

[0014] 3. The utility model discloses the paper inlet of the top of the casing is equipped with the paper feeder, and the paper feeder is used for feeding paper into the casing, improving the convenience and efficiency of the paper crusher, and the paper inlet of the paper feeder is symmetrically provided with a limiting plate, the limiting plate is adjusted by a double-acting cylinder, and the limiting plate is adapted to paper of different sizes, ensuring that the paper is neatly fed into the paper feeder and improving the stability of the paper feeder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a position relation view of the casing, the baffle and the paper inlet of the utility model.

[0017] Figure 3 It is a schematic view of the cooperation of the motor one, the paper crushing roller, the gear and the supporting plate of the utility model.

[0018] Figure 4 It is a connection relation view of the paper crushing roller, the bracket, the motor two and the cutting blade of the utility model.

[0019] Figure 5 It is a three-dimensional structure schematic view of the paper feeder, the cover plate and the locking piece of the utility model.

[0020] Figure 6 It is a connection relation view of the paper feeder, the limiting plate, the double-acting cylinder and the connecting rod of the utility model.

[0021] In the above drawings: 1: casing, 101: paper crushing collection chamber, 2: baffle, 3: paper inlet, 4: motor one, 5: paper crushing roller, 6: gear, 7: supporting plate, 8: bracket, 9: motor two, 10: cutting blade, 11: paper feeder, 12: cover plate, 13: locking piece, 14: limiting plate, 15: double-acting cylinder, 16: connecting rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Example: A high-security automatic paper shredder with multi-stage shredding, such as... Figures 1-4 As shown, the shredder includes a housing 1 and a baffle 2. The housing 1 serves as the mounting carrier and container for the shredder. The lower inner space of the housing 1 is a shredder collection chamber 101. The baffle 2 is hinged to the opening on the side wall of the shredder collection chamber 101. The top of the housing 1 has a paper inlet 3 for feeding paper. The shredder also includes: a motor 4, mounted on one side of the upper inner wall of the housing 1; a bracket 8, fixed to the upper inner wall of the housing 1, which is an inclined, recessed support plate; support plates 7, symmetrically fixed to the inclined surface of the support plate 8; shredder rollers 5, rotatably mounted side-by-side between the two support plates 7, with the output shaft of the motor 4 passing through the support plates 7 and connected to the rotating shaft of one of the shredder rollers 5. The shredder rollers 5 are used for initial shredding of paper; and a gear 6, mounted on the shredder rollers 5 away from the motor. On one end of the shaft of the machine 4, two gears 6 mesh with each other, driving one of the shredding rollers 5 to rotate via the motor 4. Under the meshing of the gears 6 on the shaft of the shredding roller 5, the two shredding rollers 5 can rotate synchronously and in opposite directions to shred the paper. The secondary shredding component is set at the bottom of the support 8, directly below the shredding roller 5. The secondary shredding component is used to further shred the paper that has not been completely shredded by the shredding roller 5, improve the fine shredding effect of the paper, and reduce the risk of restoring the original information by piecing together the shredded paper. The shredding roller 5 is detachably and rotatably installed between the two support plates 7. The shredding roller 5 can be replaced with a more suitable model of shredding teeth according to the actual paper material being shredded. By replacing different shredding rollers 5, the shredding effect on different paper materials can be improved.

[0024] like Figure 4 As shown, the secondary crushing component includes a second motor 9 and a cutting blade 10. The second motor 9 is installed at the bottom of the bracket 8. Multiple cutting blades 10 are circumferentially mounted on the output shaft of the second motor 9. The multiple cutting blades 10 are circumferentially distributed in a petal shape on the output shaft of the second motor 9, and the cutting edge of the cutting blade 10 is set with a certain inclination angle. The cutting blade 10 can be replaced with different models with different inclination angles to improve the cutting blade 10's adaptability to the crushing needs of different thicknesses of paper.

[0025] like Figure 1 and Figure 5 As shown, it also includes a paper feeder 11, which is installed at the paper inlet 3 on the top of the housing 1. The paper outlet of the paper feeder 11 is aligned with the paper inlet 3 of the housing 1. The paper feeder 11 is used to automatically feed paper into the housing 1, improving the convenience and efficiency of the paper crusher. A cover plate 12 is hinged to the upper inlet of the paper feeder 11. The cover plate 12 fully covers the inlet of the paper feeder 11. A locking fastener 13 is electronically integrated inside the cover plate 12. The locking fastener 13 is used to lock the cover plate 12 on the paper feeder 11. The locking fastener 13 is specifically a combination lock or a key lock.

[0026] like Figure 6As shown, it also includes the limiting plate 14, the bidirectional air cylinder 15 and the connecting rod 16, two limiting plates 14 are symmetrically arranged at the paper inlet of the paper feeder 11, and the limiting plates 14 are used for limiting different sizes of paper at the inlet of the paper feeder 11, the back of the paper feeder 11 is provided with the bidirectional air cylinder 15, the bidirectional telescopic rod of the bidirectional air cylinder 15 is symmetrically connected with the connecting rod 16, the connecting rod 16 of the same side is connected with the limiting plate 14, and the bidirectional air cylinder 15 drives the limiting plates 14 at two places to adjust different distances at the inlet of the paper feeder 11 through the connecting rod 16, so that different sizes of paper can be adapted, and different sizes of paper can be arranged in the paper inlet of the paper feeder 11, and the stability of the paper feeding is improved.

[0027] When the high-security paper is crushed by using the paper crusher, the user opens the cover plate 12 at the upper part of the paper feeder 11, puts the file to be destroyed into the inlet of the paper feeder 11, and locks the cover plate 12 through the lock buckle 13 (such as a password lock or a key lock), so that only authorized personnel can operate. Since the inlet of the paper feeder 11 is symmetrically provided with two limiting plates 14, and the limiting plates 14 can adjust different distances through the driving of the bidirectional air cylinder 15 and the connecting rod 16, different sizes of paper can be adapted, the paper can be arranged in the paper inlet of the paper feeder 11, and the stability of the paper feeding is improved. The paper enters the paper inlet 3 of the machine shell 1 through the paper outlet of the paper feeder 11, reaches the position of the crushing roller 5, and rotates one of the crushing rollers 5 through the driving of the motor 4. Through the meshing effect of the gear 6, the two crushing rollers 5 are synchronously and reversely rotated. The crushing teeth on the crushing roller 5 preliminarily crush the paper into strips or small pieces. Since the crushing roller 5 is designed to be detachable, different models of crushing teeth can be replaced according to the actual material of the paper to be crushed, so that the crushing effect of different materials of paper is improved. The preliminarily crushed paper falls into the secondary crushing part at the bottom of the support 8, and the cutting blade 10 is driven to rotate at high speed through the motor 9. Since the cutting blade 10 can be replaced into different models with different inclination angles to adapt to different thicknesses of paper, the multiple cutting blades 10 rotating at high speed further cut the preliminarily crushed paper into smaller particles, so that the fine crushing effect of the paper is ensured, and the risk of recovering the original information by piecing the crushed paper is reduced. The paper fragments after two-stage crushing fall into the paper crushing collection chamber 101 of the machine shell 1. When it is necessary to empty the paper crushing collection chamber 101, the baffle 2 is opened, and the crushed paper can be taken out.

[0028] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multi-stage shredding high-security automatic paper shredder, comprising a machine shell (1) and a baffle (2), the inner lower space of the machine shell (1) is a paper shredding collection chamber (101), the opening on the side wall of the paper shredding collection chamber (101) of the machine shell (1) is hinged with the baffle (2), and the top of the machine shell (1) is provided with a paper feeding port (3) for paper feeding. characterized in that further It comprises: a motor (4) mounted on one side of the upper inner wall of the machine shell (1); a support (8) fixed to the upper inner wall of the machine shell (1), the support (8) is an inclined concave support plate; a support plate (7) symmetrically fixed to the inclined surface of the support (8); a paper shredding roller (5) rotatably mounted between the two support plates (7), the output shaft of the motor (4) penetrates through the support plate (7) and is connected with the rotating shaft of one of the paper shredding rollers (5), and the paper shredding roller (5) is used for preliminary crushing of paper; a gear (6) mounted on the rotating shaft of one end of the paper shredding roller (5) away from the motor (4), and the two gears (6) are meshed with each other; a secondary crushing element arranged at the bottom of the support (8), the secondary crushing element is located directly below the paper shredding roller (5), and the secondary crushing element is used for further crushing of the paper not completely crushed by the paper shredding roller (5).

2. A multi-stage comminution high-security automatic paper shredder according to claim 1, characterized in that, The secondary crushing element comprises a motor (9) and a cutting blade (10), the motor (9) is mounted at the bottom of the support (8), a plurality of cutting blades (10) are circumferentially mounted on the output shaft of the motor (9), the plurality of cutting blades (10) are circumferentially distributed on the output shaft of the motor (9) in the shape of a petal, and the cutting edges of the cutting blades (10) are arranged at a certain inclination.

3. A multi-stage comminution high-security automatic paper shredder according to claim 2, characterized in that, The paper shredding roller (5) is rotatably mounted between the two support plates (7) in a detachable manner.

4. A multi-stage comminution high-security automatic paper shredder according to claim 3, characterized in that, It further comprises a paper feeder (11), the paper feeder (11) is mounted at the paper feeding port (3) of the top of the machine shell (1), the paper outlet of the paper feeder (11) is aligned with the paper feeding port (3) of the machine shell (1), and the paper feeder (11) is used for automatic paper feeding into the machine shell (1).

5. A multi-stage comminution high-security automatic paper shredder according to claim 4, characterized in that, It further comprises a cover plate (12) and a lock element (13), the inlet of the upper part of the paper feeder (11) is hinged with the cover plate (12), the cover plate (12) covers the inlet of the paper feeder (11), and the lock element (13) is integrated in the cover plate (12), and the lock element (13) is used for locking the cover plate (12) on the paper feeder (11).

6. A multi-stage comminution high-security automatic paper shredder according to claim 5, characterized in that, It further comprises a limiting plate (14), a two-way air cylinder (15) and a connecting rod (16), two limiting plates (14) are symmetrically and slidably arranged at the paper inlet of the paper feeder (11), the back of the paper feeder (11) is provided with a two-way air cylinder (15), the two-way telescopic rod of the two-way air cylinder (15) is symmetrically connected with the connecting rod (16), and the connecting rod (16) and the limiting plate (14) on the same side are connected.

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