Paper shredder special for accountant

Abstract

The invention discloses a special paper shredder for accountants, which belongs to the field of paper shredder equipment, and is characterized in that the special paper shredder for accountants comprises a paper shredder body, a cutter assembly, a moving device, a driving device and a warning device, and the paper shredder body is provided with a paper inlet for placing paper, a storage frame for storing paper scraps and a control box; the cutter assembly is arranged on the moving device, is positioned below the paper inlet and is used for crushing the paper; the moving device is arranged in the paper shredder body and is used for fixing the cutter assembly and driving the cutter assembly to move out of the paper shredder body; the driving device is arranged in the paper shredder body and is used for driving the cutter assembly to operate and work; the warning device is arranged on the paper shredder body and used for warning operation of the cutter assembly and the moving device.The paper shredder has the advantages that intelligent cutter replacement is achieved, the efficiency is high, accountants can operate the paper shredder conveniently, and the paper shredder can be suitable for different occasions by replacing cutters according to different secrecy degrees.

Description

Technical Field

[0001] The present application relates to a paper shredder, and more particularly to a paper shredder for accounting. Background Art

[0002] A shredder is composed of a set of rotating blades, a paper comb and a driving motor. Paper is fed in from the middle of the interlocking blades and is cut into many small pieces of paper to achieve the purpose of confidentiality. The shredding method refers to the shape of the paper after it is shredded by the shredder. According to the composition of the shredder, the existing shredding methods include: broken, granular, segmented, foamy, strip, filamentous, etc.

[0003] For the accounting industry, office shredders are indispensable equipment. Different levels of confidentiality require the use of different accounting-specific shredders, which requires the purchase of different models of shredders, which is expensive. When the internal cutters of the shredder need to be replaced or repaired urgently, it is very troublesome for accountants, and the cutters are easily scratched during the replacement process under improper operation, which poses a great risk and requires professional personnel to dismantle the machine for replacement, which is time-consuming and labor-intensive.

[0004] In view of this, the inventor has designed a special accounting paper shredder with intelligent replacement of internal cutters. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a special paper shredder for accounting, which has the advantages of intelligent tool replacement, high efficiency, easy operation for accountants, and the ability to replace tools according to different levels of confidentiality to suit different occasions.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a special accounting shredder, comprising a shredder body, a cutter assembly, a moving device, a driving device and a warning device,

[0007] The shredder body is used to install the cutter assembly, the moving device, the driving device and the warning device, and includes a paper inlet for placing paper, a storage frame for storing paper scraps and a control box;

[0008] A cutter assembly is arranged on the mobile device and below the paper inlet, and is used for breaking the paper;

[0009] A moving device, disposed in the shredder body, for fixing the cutter assembly and driving it to move to the outside of the shredder body;

[0010] A driving device is arranged in the shredder body and is used to drive the cutter assembly to operate;

[0011] The warning device is arranged on the shredder body and is used for warning the operation of the cutter assembly and the moving device.

[0012] By adopting the above technical scheme, when the accountant needs to replace the cutter assembly, the control box inside the shredder body first issues instructions to the drive device, and the drive device stops working relative to the cutter assembly and moves away from the cutter assembly. Then the mobile device drives the cutter assembly to move to the outside of the shredder body and unlocks the cutter assembly. Then the accountant replaces the cutter on the mobile device; after the cutter assembly is placed on the mobile device, the control box can issue instructions to the mobile device through the shredder body, and the mobile device first locks the cutter assembly placed thereon, and then the cutter assembly is moved to the inside of the shredder body through the mobile device. Then the drive device moves toward the cutter assembly under the instruction of the control box and engages with each other to complete the replacement of the cutter of the shredder; when the paper is between the paper inlet and the cutter assembly, the warning device can detect the existence of the paper and give a prompt that the paper out of the paper inlet needs to be cleaned up. When the mobile device moves to the outside of the shredder body, the warning device can detect the distance between the external obstacle and the mobile device and give a prompt warning.

[0013] In summary, the above-mentioned shredder body, cutter assembly, moving device, driving device and warning device form a complete intelligent cutter replacement system, which can facilitate accountants to replace or clean the cutter assembly on the shredder body without complicated replacement steps, thereby achieving intelligent cutter replacement, high efficiency, and easy operation for accountants, and has the purpose of replacing cutters according to different levels of confidentiality to suit different occasions.

[0014] Preferably, the tool assembly includes a tool holder body arranged on a mobile device, two rollers which are rotatably arranged on the tool holder body and whose axes are parallel to each other, two driven gears which are respectively arranged at the same end of the two rollers and meshing with each other, and a meshing pair wheel which is arranged at one end of any roller and cooperates with the driving device to operate, and the tool holder body is respectively provided with an opening and an outlet above and below the two rollers, and the two rollers can cut and shred paper when they rotate relative to each other.

[0015] By adopting the above technical solution, when the cutter on the shredder body is to be replaced, only the entire cutter assembly needs to be replaced, thereby avoiding the risk of scratching the accountant when replacing the cutter; when shredding the paper, the driving device drives the meshing secondary wheel that is to be meshed with it to operate, the meshing secondary wheel rotates and drives the roller fixed to it to rotate, and the other roller rotates through the meshing action of two driven gears, thereby realizing the relative movement of the two rollers, and the paper enters from the opening of the cutter holder body between the two rollers for shredding, and falls into the storage frame on the shredder body through the outlet of the cutter holder body.

[0016] Preferably, the hob comprises a rotating shaft rod and a plurality of blades arranged along the length direction of the rotating shaft rod, the blades on the two hobs are arranged in a staggered manner and engaged with each other, and the tool holder body is provided with an elastic sheet for removing impurities located between the two blades and in contact with the rotating shaft rod.

[0017] By adopting the above technical solution, when the paper falls between the two rollers, the blades on the two rollers move relative to each other under the drive of the rotating shaft rod and cut and crush the paper, and the crushed paper scraps are scraped off the rotating shaft rod by the impurity removal elastic sheet, thereby preventing the paper scraps from remaining on the rollers.

[0018] Preferably, the shredder body is provided with a knife outlet communicated with the interior thereof, the moving device comprises a knife clamping frame arranged in the shredder body and moving along the knife outlet direction, a hidden slide rail arranged in the shredder body and used to support the knife clamping frame, and a first linear motor arranged in the shredder body and with a moving rod fixed to the knife clamping frame, and the knife clamping frame is used to install and fix the tool assembly.

[0019] By adopting the above technical solution, when the tool assembly needs to be moved to the outside of the shredder body, the tool clamping frame equipped with the tool assembly moves along the direction of the knife edge under the action of the hidden slide rail and the first linear motor, and moves the tool assembly to the outside of the shredder body; when the replaced tool assembly needs to be moved to the inside of the shredder body, the tool clamping frame moves along the inside of the shredder body under the action of the hidden slide rail and the first linear motor.

[0020] Preferably, the tool clamping frame comprises a base frame fixed on a hidden slide rail and used for placing a tool assembly, and a second linear motor arranged on the outer wall of the base frame and having a moving rod moving toward the inside of the base frame, and the tool assembly is provided with a clamping hole engaged with the moving rod on the second linear motor.

[0021] By adopting the above technical solution, when the tool assembly needs to be installed on the tool clamping frame, the tool assembly is first placed in the base frame, and then a command is given to the second linear motor through the control box on the shredder body, so that the moving rod of the second linear motor is inserted into the clamping hole on the tool assembly, thereby locking the tool assembly in the base frame, and then the tool clamping frame drives the tool assembly to move into the shredder body.

[0022] The preferred embodiment of the present invention is as follows: the tool assembly includes a meshing secondary wheel, the driving device includes a gearbox provided with an output shaft and an input shaft, a driving motor provided on the gearbox and fixed to its input shaft, a meshing main wheel provided on the output shaft and meshing with the meshing secondary wheel, two guide rails provided in the shredder body and extending in the direction of the tool assembly, a slider provided at the lower end of the gearbox and cooperating with the guide rails, a worm provided in the shredder body and in the same direction as the guide rail extension, a turbine rotatably provided in the shredder body and meshing with the worm, and a rotating motor provided in the shredder body and having a rotating shaft coaxial with the turbine, the lower end of the gearbox meshes with the worm and moves in the direction of the tool assembly, the meshing main wheel is located on the side of the gearbox facing the tool assembly, and the extension direction of the guide rail is perpendicular to the moving direction of the tool assembly.

[0023] By adopting the above technical solution, when the driving device needs to move away from the tool assembly, the rotating motor drives the turbine to rotate, and the worm meshing with the turbine rotates through the turbine, and the gearbox moves in a direction away from the tool assembly under the action of itself, the worm, and the slider and guide rail on the gearbox, thereby driving the meshing main wheel to disengage from the meshing secondary wheel; when the driving device needs to drive the tool assembly to operate, the rotating motor drives the turbine to rotate, and the worm meshing with the turbine rotates through the turbine, and the gearbox moves in a direction toward the tool assembly under the action of itself, the worm, and the slider and guide rail on the gearbox, and makes the meshing main wheel and the meshing secondary wheel mesh with each other, and the driving motor drives the meshing main wheel to rotate through the gearbox, thereby driving the tool assembly to operate.

[0024] Preferably, the present invention is characterized in that: a plurality of positioning rods are arranged on a side of the gearbox facing the tool assembly, and the tool assembly is provided with positioning holes which are engaged with the corresponding positioning rods.

[0025] By adopting the above technical solution, when the driving device cooperates with the tool assembly, the positioning rod on the gearbox is inserted into the positioning hole on the tool assembly, which not only plays a guiding role when the driving device cooperates with the tool assembly, but also plays a locking role after the driving device cooperates with the tool assembly, thereby preventing the tool assembly from moving along the cutting edge direction.

[0026] Preferably, the warning device comprises an infrared sensing probe arranged in the shredder body and below the paper inlet, an infrared distance sensor arranged on the mobile device, and a warning light arranged outside the shredder body.

[0027] By adopting the above technical solution, the infrared sensing probe can detect the paper below the paper inlet to prevent the tool assembly from getting stuck when it is moved out of the shredder body. The infrared distance sensor detects external obstacles when the mobile device moves away from the shredder body to prevent the mobile device from colliding with external objects when moving. The warning light alerts sudden phenomena to facilitate accounting personnel to deal with them.

[0028] In summary, the present invention has the following advantages:

[0029] A complete intelligent tool replacement system is formed by the shredder body, tool assembly, mobile device, drive device and warning device, which can facilitate accountants to replace or clean the tool assembly on the shredder body without complicated replacement steps, thereby achieving intelligent tool replacement, high efficiency, and easy operation for accountants, and has the purpose of replacing tools according to different confidentiality levels to suit different occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0031] Figure 2 It is a cross-sectional structural schematic diagram of this embodiment;

[0032] Figure 3 is a schematic structural diagram of the present embodiment omitting the shredder body;

[0033] Figure 4 Schematic diagram of the structure of the tool assembly of this embodiment;

[0034] Figure 5 is a schematic diagram of the structure of the mobile device of this embodiment;

[0035] Figure 6 Schematic diagram of the structure of the driving device of this embodiment.

[0036] Explanation of the accompanying drawings: 1. shredder body; 2. paper inlet; 3. storage frame; 4. control box; 5. touch screen; 6. knife holder body; 7. roller; 71. rotating shaft rod; 72. blade; 8. driven gear; 9. meshing secondary wheel; 10. opening; 11. outlet; 12. debris removal elastic sheet; 13. knife outlet; 14. knife clamping frame; 141. base frame; 142. second linear motor; 15. hidden slide rail; 16. first linear motor; 17. gearbox; 18. drive motor; 19. meshing main wheel; 20. guide rail; 21. slider; 22. worm; 23. turbine; 24. rotating motor; 25. positioning rod; 26. positioning hole; 27. infrared sensor probe; 28. infrared distance sensor; 29. ​​warning light. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0038] A special paper shredder for accounting, such as Figure 1 , 2 As shown, it includes a shredder body 1, a cutter assembly, a moving device, a driving device and a warning device.

[0039] The shredder body 1 is used to install the cutter assembly, the moving device, the driving device and the warning device, and includes a paper inlet 2 for placing paper, a storage frame 3 for storing paper scraps, a control box 4 and a touch screen 5;

[0040] A cutter assembly, mounted on the mobile device and located below the paper inlet 2, for breaking the paper;

[0041] A moving device, installed in the shredder body 1, used to fix the cutter assembly and drive it to move to the outside of the shredder body 1;

[0042] A driving device, installed in the shredder body 1, is used to drive the cutter assembly to operate and has a moving function;

[0043] The warning device is installed on the shredder body 1 and is used to warn the operation of the cutter assembly and the moving device.

[0044] And if Figure 1 , 2 As shown, the warning device includes an infrared sensing probe 27 installed in the shredder body 1 and located below the paper inlet 2, an infrared distance sensor 28 installed on the mobile device, and a warning light installed on the outside of the shredder body 1. The infrared sensing probe 27 can detect the paper below the paper inlet 2 to prevent the tool assembly from getting stuck when it is moved out of the shredder body 1. The infrared distance sensor 28 detects external obstacles when the mobile device moves away from the shredder body 1 to prevent the mobile device from colliding with external objects when moving. The warning light alarms for sudden phenomena, which is convenient for accountants to deal with.

[0045] like Figure 3 , 4As shown, the tool assembly includes a tool holder body 6 installed on a mobile device, two roller cutters 7 which are rotatably installed on the tool holder body 6 and whose axes are parallel to each other, two driven gears 8 which are respectively fixed at the same end of the two corresponding roller cutters 7 and mesh with each other, and a meshing pair wheel 9 which is installed at one end of any roller cutter 7 and cooperates with the driving device to operate. The tool holder body 6 is located above and below the two roller cutters 7 and is respectively provided with an opening 10 and an outlet 11. When the two roller cutters 7 rotate relative to each other, the paper can be cut and shredded. When the cutter on the shredder body 1 is to be replaced, only the entire cutter assembly needs to be replaced to avoid the risk of scratching the accountant when replacing the cutter; when the paper is shredded, the driving device drives the meshing secondary wheel 9 that is to be meshed with it to operate, the meshing secondary wheel 9 rotates and drives the roller 7 fixed to it to rotate, and the other roller 7 rotates through the meshing action of two driven gears 8, thereby realizing the relative movement of the two rollers 7, and the paper enters from the opening 10 of the cutter frame body 6 between the two rollers 7 for shredding, and falls into the storage frame 3 on the shredder body 1 through the outlet 11 of the cutter frame body 6.

[0046] Furthermore, the roller cutter 7 includes a rotating shaft rod 71 and a plurality of blades 72 arranged along the length direction of the rotating shaft rod 71. The blades 72 on the two roller cutters 7 are staggered and arranged to fit together. A dust-removing elastic sheet 12 located between the two blades 72 and in contact with the rotating shaft rod 71 is fixed to the cutter holder body 6. When a sheet of paper falls between the two roller cutters 7, the blades 72 on the two roller cutters 7 move relative to each other under the drive of the rotating shaft rod 71 and cut and shred the sheet of paper. The shredded paper scraps are scraped off the rotating shaft rod 71 by the dust-removing elastic sheet 12 to prevent the paper scraps from remaining on the roller cutters 7.

[0047] like Figure 3 , 5 As shown, the shredder body 1 has a knife outlet 13 connected to the inside thereof, and the moving device includes a knife holder 14 installed in the shredder body 1 and moving along the direction of the knife outlet 13, a hidden slide rail 15 installed in the shredder body 1 and used to support the knife holder 14, and a first linear motor 16 installed in the shredder body 1 and fixed with the moving rod and the knife holder 14. The knife holder 14 is used to install and fix the knife assembly. When the knife assembly needs to be moved to the outside of the shredder body 1, the knife holder 14 installed with the knife assembly moves along the direction of the knife outlet 13 under the action of the hidden slide rail 15 and the first linear motor 16, and moves the knife assembly to the outside of the shredder body 1; when the replaced knife assembly needs to be moved to the inside of the shredder body 1, the knife holder 14 moves along the inside of the shredder body 1 under the action of the hidden slide rail 15 and the first linear motor 16.

[0048] Furthermore, the knife clamping frame 14 includes a base frame 141 fixed on the hidden slide rail 15 and used to place the knife assembly, and a second linear motor 142 installed on the outer wall of the base frame 141 and with a moving rod moving toward the inside of the base frame 141. The knife assembly is provided with a clamping hole that is engaged with the moving rod on the second linear motor 142. When the knife assembly needs to be installed on the knife clamping frame 14, the knife assembly is first placed in the base frame 141, and then the control box 4 on the shredder body 1 issues a command to the second linear motor 142, so that the moving rod of the second linear motor 142 is inserted into the clamping hole on the knife assembly, so that the knife assembly is locked in the base frame 141, and then the knife clamping frame 14 drives the knife assembly to move into the shredder body 1.

[0049] like Figure 3 , 6 As shown, the tool assembly includes a meshing secondary wheel 9, and the driving device includes a gearbox 17 equipped with an output shaft and an input shaft, a driving motor 18 installed on the gearbox 17 and fixed to its input shaft, a meshing main wheel 19 installed on the output shaft and meshing with the meshing secondary wheel 9, two guide rails 20 installed in the shredder body 1 and extending in the direction of the tool assembly, a slider 21 installed at the lower end of the gearbox 17 and matched with the guide rails 20, a worm 22 installed in the shredder body 1 and in the same extension direction as the guide rails 20, a turbine 23 rotatably installed in the shredder body 1 and meshing with the worm 22, and a rotating motor 24 installed in the shredder body 1 and the rotating shaft is coaxial with the turbine 23. The lower end of the gearbox 17 meshes with the worm 22 and moves in the direction of the tool assembly. The meshing main wheel 19 is located on the side of the gearbox 17 facing the tool assembly, and the extension direction of the guide rail 20 is perpendicular to the moving direction of the tool assembly. When the driving device needs to move away from the tool assembly, the rotating motor 24 drives the turbine 23 to rotate, and the worm 22 meshing with the turbine 23 rotates through the turbine 23, and the gearbox 17 moves in the direction away from the tool assembly under the action of itself, the worm 22, and the slider 21 and the guide rail 20 on the gearbox 17, thereby driving the meshing main wheel 19 to disengage the meshing secondary wheel 9; when the driving device needs to drive the tool assembly to operate, the rotating motor 24 drives the turbine 23 to rotate, and the worm 22 meshing with the turbine 23 rotates through the turbine 23, and the gearbox 17 moves in the direction toward the tool assembly under the action of itself, the worm 22, and the slider 21 and the guide rail 20 on the gearbox 17, and makes the meshing main wheel 19 and the meshing secondary wheel 9 mesh with each other, and the driving motor 18 drives the meshing main wheel 19 to rotate through the gearbox 17, thereby driving the tool assembly to operate.

[0050] Furthermore, two positioning rods 25 are fixed on the side of the gearbox 17 facing the tool assembly, and the tool assembly is provided with positioning holes 26 that fit with the corresponding positioning rods 25. When the drive device is matched with the tool assembly, the positioning rods 25 on the gearbox 17 are inserted into the positioning holes 26 on the tool assembly, which not only play a guiding role when the drive device is matched with the tool assembly, but also play a locking role after the drive device is matched with the tool assembly, so as to prevent the tool assembly from moving along the direction of the knife edge 13.

[0051] The working process and beneficial effects of the present invention are as follows: when the accountant needs to replace the cutter assembly, the control box 4 inside the shredder body 1 first issues an instruction to the drive device, the drive device stops working relative to the cutter assembly and moves in the direction away from the cutter assembly, then the moving device drives the cutter assembly to move to the outside of the shredder body 1 and the moving device unlocks the cutter assembly, and then the accountant replaces the cutter on the moving device; after the cutter assembly is placed on the moving device, the control box 4 can issue an instruction to the moving device through the shredder body 1, the moving device first locks the cutter assembly placed thereon, then the cutter assembly is moved to the inside of the shredder body 1 through the moving device, and then the drive device moves in the direction of the cutter assembly under the instruction of the control box 4 and meshes with each other to complete the replacement of the cutter of the shredder; when the paper is between the paper inlet 2 and the cutter assembly, the warning device can detect the existence of the paper and give a prompt that the paper out of the paper inlet 2 needs to be cleaned, and when the moving device moves to the outside of the shredder body 1, the warning device can detect the distance between the external obstacle and the moving device and give a prompt warning.

[0052] In summary, the above-mentioned shredder body 1, tool assembly, moving device, driving device and warning device form a complete intelligent tool replacement system, which can facilitate accountants to replace or clean the tool assembly on the shredder body 1 without complicated replacement steps, thereby achieving intelligent tool replacement, high efficiency, and easy operation for accountants, and has the purpose of replacing tools according to different confidentiality levels for different occasions.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A special accounting shredder, characterized by: It comprises a paper shredder body (1), a cutter assembly, a moving device, a driving device and a warning device. A shredder body (1) is used to install a cutter assembly, a moving device, a driving device and a warning device, and includes a paper inlet (2) for placing paper, a storage frame (3) for storing paper scraps and a control box (4); A cutter assembly, arranged on the mobile device and located below the paper inlet (2), for breaking up the paper; A moving device, arranged in the shredder body (1), used for fixing the cutter assembly and driving it to move outside the shredder body (1); A driving device, arranged in the shredder body (1), for driving the cutter assembly to operate; The warning device is arranged on the shredder body (1) and is used to warn about the operation of the cutter assembly and the moving device.

2. The accounting paper shredder according to claim 1, characterized in that: The tool assembly comprises a tool holder body (6) arranged on a moving device, two roller cutters (7) which are respectively rotatably arranged on the tool holder body (6) and whose axes are parallel to each other, two driven gears (8) which are respectively arranged at the same end of the two corresponding roller cutters (7) and mesh with each other, and a meshing secondary wheel (9) which is arranged at one end of any roller cutter (7) and cooperates with a driving device for operation. The tool holder body (6) is respectively provided with an opening (10) and an outlet (11) above and below the two roller cutters (7). When the two roller cutters (7) rotate relative to each other, paper can be cut and shredded.

3. The accounting paper shredder according to claim 2, characterized in that: The roller cutter (7) comprises a rotating shaft rod (71) and a plurality of blades (72) arranged along the length direction of the rotating shaft rod (71); the blades (72) on the two roller cutters (7) are arranged in a staggered manner and interlocked; and the cutter holder body (6) is provided with a debris-removing elastic sheet (12) located between the two blades (72) and in contact with the rotating shaft rod (71).

4. The accounting paper shredder according to claim 1, characterized in that: The shredder body (1) is provided with a knife outlet (13) communicated with the interior thereof, the moving device comprises a knife clamping frame (14) arranged in the shredder body (1) and moving in the direction of the knife outlet (13), a hidden slide rail (15) arranged in the shredder body (1) and used to support the knife clamping frame (14), and a first linear motor (16) arranged in the shredder body (1) and having a moving rod fixed to the knife clamping frame (14), and the knife clamping frame (14) is used to install a fixed knife assembly.

5. The accounting paper shredder according to claim 4, characterized in that: The tool holder (14) comprises a base frame (141) fixed on a hidden slide rail (15) and used for placing a tool assembly, and a second linear motor (142) arranged on an outer side wall of the base frame (141) and having a moving rod moving toward the inside of the base frame (141); and a clamping hole engaged with the moving rod on the second linear motor (142) is arranged on the tool assembly.

6. The accounting paper shredder according to claim 1, characterized in that: The tool assembly comprises a meshing secondary wheel (9), and the driving device comprises a gearbox (17) provided with an output shaft and an input shaft, a driving motor (18) arranged on the gearbox (17) and fixed to the input shaft, a meshing primary wheel (19) arranged on the output shaft and meshing with the meshing secondary wheel (9), two guide rails (20) arranged in the shredder body (1) and extending in the direction of the tool assembly, a slider (21) arranged at the lower end of the gearbox (17) and cooperating with the guide rails (20), and a drive motor (18) arranged on the shredder body (1) and meshing with the meshing secondary wheel (9). A worm (22) is arranged in the shredder body (1) and is consistent with the extension direction of the guide rail (20), a turbine (23) is rotatably arranged in the shredder body (1) and meshed with the worm (22), and a rotating motor (24) is arranged in the shredder body (1) and the rotating shaft is coaxial with the turbine (23), the lower end of the gearbox (17) is meshed with the worm (22) and moves in the direction of the tool assembly, the meshing main wheel (19) is located on the side of the gearbox (17) facing the tool assembly, and the extension direction of the guide rail (20) is perpendicular to the moving direction of the tool assembly.

7. The accounting paper shredder according to claim 6, characterized in that: A plurality of positioning rods (25) are arranged on one side of the gearbox (17) facing the tool assembly, and positioning holes (26) which are engaged with corresponding positioning rods (25) are arranged on the tool assembly.

8. The accounting paper shredder according to claim 1, characterized in that: The warning device comprises an infrared sensing probe (27) arranged in the shredder body (1) and located below the paper inlet (2), an infrared distance sensor (28) arranged on the mobile device, and a warning light arranged outside the shredder body (1).

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