Automatic paper shredder with bent paper discharging structure

Abstract

The invention discloses an automatic paper shredder with a bent paper discharging structure, and relates to the technical field of paper shredders, the automatic paper shredder comprises a shell and an accommodating box, a supporting plate is fixedly mounted on the inner side surface of the shell, and a fine cutting crushing mechanism is arranged between the supporting plate and the accommodating box; a fixing plate is fixedly installed at the inner end of the shell, and a storage mechanism assisting in discharging is arranged between the fixing plate and the connecting column. A containing box is fixedly installed on the inner side face of the shell, and a bent paper feeding mechanism is arranged between the containing box and the protective shell. According to the automatic paper shredder with the bent paper discharging structure, a transmission shaft drives a first gear to rotate, the first gear drives a second gear to operate in an engaged mode, the second gear drives a first shredding cutter to rotate, the first shredding cutter drives a driving gear to rotate, the driving gear drives a third gear to rotate in an engaged mode, and the third gear drives a second shredding cutter to rotate; and the first smashing cutter and the second smashing cutter can smash the paper conveniently, and the purpose of improving the paper smashing efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of paper shredders, in particular to an automatic paper shredder with a bent paper lowering structure. Background Art

[0002] A shredder is a commonly used office supply. Most important information is recorded in the form of paper to facilitate the recording of work. Shredding the paper with a shredder prevents the leakage of some important documents and increases security.

[0003] After shredding, the shredded paper inside the traditional shredder will remain in the device, thus affecting the shredding of the device. The device needs to accommodate the long side of the paper, resulting in a larger device size and the shredded paper is not fine enough.

[0004] In order to solve the above-mentioned defects, in the prior art, a Chinese patent with publication number CN219482910U discloses a paper shredder, which is provided with two sets of rotating parts in parallel on the top of a shell, and the output shafts of the first motors in the two sets of rotating parts rotate in opposite directions, so that the rotation of the rotating shaft and the spiral cutter are opposite, and the documents are shredded and cleaned by the spiral cutter rotating in the opposite direction, thereby realizing the function of automatically shredding the documents, the compression part is provided in the middle part of the shell, the compression part includes a second motor and a movable plate, the middle part of the shell is fixedly connected with a partition plate, and the bottom of the movable plate in the compression part is threadedly connected with the outer wall of the screw rod, the output shaft of the second motor rotates to drive the rotation of the screw rod, and the movable plate moving left and right compresses the shredded paper pieces between the inner walls of the shell, and the shredded paper pieces fall into the storage box through the paper outlet, thereby realizing the space utilization of the storage box and reducing the frequency of cleaning the shredded paper pieces, and the storage box in the sliding part is fixedly connected with a slider at the bottom end, and the slider slides in the outer wall of the slide groove at the bottom end of the shell, which facilitates the cleaning of the storage box.

[0005] The Chinese patent with publication number CN219596803U discloses a shredder, wherein the shredding outlet is arranged at one side of the housing, and a shredding inlet and a shredding outlet are arranged thereon, wherein the shredding inlet is arranged at the upper part of the housing, and the shredding outlet is arranged at the lower part of the housing; the shredding assembly is arranged at the middle part of the housing, and the shredding assembly is suitable for dividing paper into paper scraps, specifically an opening at the lower part of the housing communicating with the outside, and the paper scraps are transported to the shredding outlet position by arranging a transfer assembly, and the paper scraps are further transported to an external trash can by the shredding outlet, and the trash can can be any specification used in normal times, and there is no need to configure a dedicated paper storage barrel integrated with the shredder, which greatly reduces the specification size of the shredder, realizes the miniaturization of the shredder, and reduces the occupation of office space. Thus, the defects of the floor-standing shredder in the prior art that the whole machine is too large and occupies too much space are overcome.

[0006] The above-mentioned device utilizes a spiral cutter to shred documents during use, but the spiral cutter in the above-mentioned device only shreds the documents, and the shredded paper floats inside the device, which may easily affect the operation of the internal equipment. Therefore, in actual use, paper may fall inside the device, affecting the shredding efficiency of the device. Summary of the invention

[0007] The object of the present invention is to provide an automatic shredder with a bent lower paper structure to solve the problem in the background art that paper falling inside the device affects the shredding efficiency of the device.

[0008] To achieve the above object, the present invention provides the following technical solution: an automatic paper shredder with a curved paper lowering structure, comprising a housing and a receiving box, and further comprising:

[0009] A support plate is fixedly mounted on the inner side of the shell, a fixing frame is fixedly mounted on the outer surface of the support plate, a storage box is movably mounted on the inner end of the shell, and a fine-cutting crushing mechanism is arranged between the support plate and the storage box;

[0010] A fixing plate is fixedly mounted on the inner end of the shell, a connecting column is movably mounted on the outer surface of the containing box, and a storage mechanism for auxiliary material discharge is arranged between the fixing plate and the connecting column;

[0011] A containing box is fixedly installed on the inner side surface of the shell, a protective shell is fixedly installed on the inner side surface of the shell, and a feeding mechanism for bending paper is arranged between the containing box and the protective shell.

[0012] Furthermore, a paper feed guide port is fixedly mounted on the inner side surface of the shell, the feeding mechanism includes the paper feed guide port, a connecting rod is fixedly mounted on the outer surface of the fixing frame, and a protective shell is fixedly mounted on the outer surface of the fixing frame.

[0013] Furthermore, an output shaft is rotatably mounted on the outer surface of the stepper motor, a positioning plate is fixedly mounted on the outer surface of the output shaft, a coil is fixedly mounted on the outer surface of the output shaft, and a transmission shaft is rotatably mounted on the inner side of the output shaft, and the output shaft and the transmission shaft form a rotating structure.

[0014] Furthermore, a positioning sleeve is fixedly installed on the outer surface of the transmission shaft, a positioning disk is fixedly installed on the outer surface of the positioning sleeve, and a gear one is fixedly installed on the outer surface of the transmission shaft, and a shaft disk is fixedly installed on the outer surface of the gear one.

[0015] Furthermore, a gear 2 is rotatably mounted on the outer surface of the gear 1, a first crushing tool is fixedly mounted on the outer surface of the gear 2, a driving gear is fixedly mounted on the outer surface of the first crushing tool, and a gear meshing structure is formed between the gear 1 and the gear 2.

[0016] Furthermore, a gear three is rotatably mounted on the outer surface of the driving gear, a second crushing tool is fixedly mounted on the outer surface of the gear three, and the crushing mechanism includes the second crushing tool, and the driving gear and gear three form a gear meshing structure.

[0017] Furthermore, a rotating shaft is fixedly mounted on the inner side of the second crushing tool, a limiting plate is fixedly mounted on the outer surface of the rotating shaft, and a bearing is fixedly mounted on the inner side of the limiting plate, and a fixed plate is movably abutted against the outer surface of the bearing.

[0018] Furthermore, a belt is rotatably mounted on the outer surface of the rotating shaft, a connecting column is rotatably mounted on the inner side of the belt, and a sleeve is fixedly mounted on the outer surface of the connecting column, a bolt is threadedly mounted on the inner side of the sleeve, and the rotating shaft and the belt form a rotating structure.

[0019] Furthermore, a transmission belt is rotatably mounted on the outer surface of the connecting column, a driving rod is rotatably mounted on the inner side surface of the driving belt, a fixing rod is fixedly mounted on the outer surface of the driving rod, and the connecting column and the transmission belt form a rotating structure.

[0020] Furthermore, an irregular gear is fixedly mounted on the outer surface of the fixed rod, and a rack is meshed on the outer surface of the irregular gear. The storage mechanism includes a rack, and a limit frame is slidably mounted on the outer surface of the rack. A movable rod is fixedly mounted on one end of the rack, and a spring is movably sleeved on the outer surface of the movable rod, and a sliding block is fixedly mounted on the outer surface of the movable rod, and the movable rod and the sliding block form a telescopic structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The automatic paper shredder with a curved paper lowering structure has the following specific contents:

[0023] 1. The transmission shaft drives gear 1 to rotate, gear 1 drives gear 2 to mesh and rotate, gear 2 drives the first crushing tool to rotate, the first crushing tool drives the driving gear to rotate, the driving gear drives gear 3 to mesh and rotate, gear 3 drives the second crushing tool to rotate, so that the first crushing tool and the second crushing tool can quickly crush the paper, thereby improving the efficiency of crushing paper;

[0024] Furthermore, paper is put into the housing through the paper feed guide port, and the inclination of the paper feed guide port is used to cause the paper to bend and feed, thereby facilitating the shredding of the paper. By starting the stepper motor, the stepper motor drives the output shaft to rotate, the output shaft drives the transmission shaft to rotate, and the transmission shaft drives the positioning plate to rotate, thereby increasing the stability of the device and improving the shredding accuracy, so that the first shredding tool and the second shredding tool can evenly shred the paper.

[0025] Furthermore, the stepper motor is protected by a protective shell, fixed by a fixing frame, and supported by a support plate, thereby increasing the bearing capacity of the protective shell and improving the safety of the equipment. The positioning plate is used to limit the coil to prevent the coil from shifting and falling off, thereby reducing the risk of the equipment. The transmission shaft is positioned and supported by the shaft plate, thereby ensuring stable operation of the equipment.

[0026] 2. The second shredding tool drives the rotating shaft to rotate, the rotating shaft drives the belt to rotate, the belt drives the connecting column to rotate, the connecting column drives the transmission belt to rotate, the transmission belt drives the driving rod to rotate, and the driving rod drives the fixed rod to rotate, thereby improving the precision of shredding and preventing incomplete shredding of paper;

[0027] Furthermore, the shredded paper falls into the receiving box, and the irregular gear is synchronously driven to rotate through the fixed rod. When the irregular gear rotates, the gear teeth on the irregular gear will mesh with the rack, thereby driving the rack to move, so that the rack pushes the movable rod to move, and at the same time, the limit frame plays a fixed limiting role on the rack to prevent the rack from falling off, and the rack pushes the sliding block through the movable rod, thereby pushing the shredded paper into the receiving box, which is convenient for personnel to clean and improves the efficiency of paper shredding. At the same time, when the rack pushes the movable rod, it will squeeze the spring. When the irregular gear and the rack end the meshing state, the movable rod will reset the rack under the reaction force of the spring, thereby realizing the cyclic reciprocating motion of the sliding block;

[0028] Furthermore, the rotating shaft is supported by a fixed plate, the rotating shaft is limited by a limit plate, and the friction of the rotating shaft is reduced by a bearing, thereby increasing the service life of the equipment. It is installed on the containing box through a connecting column to increase the supporting force of the connecting column, and the sleeve is fixed to the connecting column with bolts to prevent the belt from falling off and reduce the wear of the belt, thereby achieving the purpose of improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the shell of the present invention;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective shell of the present invention;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the first crushing tool of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the shaft disc of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the second crushing tool of the present invention;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention;

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the container box of the present invention;

[0037] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing frame of the present invention;

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention.

[0039] In the figure: 1, shell; 2, storage box; 3, support plate; 4, fixing frame; 5, connecting rod; 6, protective shell; 7, stepping motor; 8, output shaft; 9, fixing plate; 10, coil; 11, transmission shaft; 12, positioning sleeve; 13, positioning plate; 14, gear one; 15, shaft plate; 16, gear two; 17, first crushing tool; 18, driving gear; 19, gear three; 20, second crushing tool; 21, rotating shaft; 22, limiting plate; 23, bearing; 24, fixing plate; 25, belt; 26, connecting column; 27, shaft sleeve; 28, bolt; 29, transmission belt; 30, driving rod; 31, fixing rod; 32, irregular gear; 33, rack; 34, limiting frame; 35, movable rod; 36, spring; 37, sliding block; 38, paper feed guide port; 39, storage box. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figure 1-Figure 10The present invention provides the following technical solutions: an automatic paper shredder with a curved paper lowering structure, comprising a shell 1 and a storage box 2, and further comprising: a support plate 3 is fixedly mounted on the inner side surface of the shell 1, a fixing frame 4 is fixedly mounted on the outer surface of the support plate 3, a storage box 39 is movably mounted on the inner end of the shell 1, and a fine cutting shredding mechanism is arranged between the support plate 3 and the storage box 39; a fixing plate 24 is fixedly mounted on the inner end of the shell 1, a connecting column 26 is movably mounted on the outer surface of the storage box 2, and a storage mechanism for auxiliary material discharge is arranged between the fixing plate 24 and the connecting column 26; the storage box 2 is fixedly mounted on the inner side surface of the shell 1, a protective shell 6 is fixedly mounted on the inner side surface of the shell 1, and a feeding mechanism for curved paper lowering is arranged between the storage box 2 and the protective shell 6.

[0042] The fine-cutting shredding mechanism provided between the support plate 3 and the storage box 39 shreds the paper, thereby preventing leakage of the paper documents and increasing safety. The shredded paper is collected by the auxiliary discharge storage mechanism provided between the fixed plate 24 and the connecting column 26, thereby facilitating the handling of personnel. The bent lower paper feeding mechanism provided between the storage box 2 and the protective shell 6 facilitates the shredding of the paper, thereby improving the shredding efficiency.

[0043] Embodiment 2:

[0044] Based on Example 1, please refer to Figure 1-Figure 10 , a first crushing tool 17 is also disclosed, and its specific structure is as follows: a paper feed guide port 38 is fixedly installed on the inner side of the shell 1, the feeding mechanism includes the paper feed guide port 38, a connecting rod 5 is fixedly installed on the outer surface of the fixing frame 4, a protective shell 6 is fixedly installed on the outer surface of the fixing frame 4, and a stepping motor 7 is fixedly installed on the inner side of the protective shell 6, an output shaft 8 is rotatably installed on the outer surface of the stepping motor 7, a fixed disk 9 is fixedly installed on the outer surface of the output shaft 8, a coil 10 is rotatably installed on the outer surface of the output shaft 8, and a transmission shaft 11 is rotatably installed on the inner side of the coil 10, and The coil 10 and the transmission shaft 11 form a rotating structure, a positioning sleeve 12 is fixedly installed on the outer surface of the transmission shaft 11, a positioning disk 13 is fixedly installed on the outer surface of the positioning sleeve 12, and a gear 14 is fixedly installed on the outer surface of the transmission shaft 11, a shaft disk 15 is fixedly installed on the outer surface of the gear 14, a gear 2 16 is rotatably installed on the outer surface of the gear 14, a first crushing tool 17 is fixedly installed on the outer surface of the gear 2 16, and a driving gear 18 is fixedly installed on the outer surface of the first crushing tool 17, and a gear meshing structure is formed between the gear 14 and the gear 2 16.

[0045] Paper is put into the housing 1 through the paper feed guide opening 38, and the inclination of the paper feed guide opening 38 is used to cause the paper to bend and discharge, thereby facilitating the shredding of the paper. By starting the stepper motor 7, the stepper motor 7 drives the output shaft 8 to rotate, the output shaft 8 drives the transmission shaft 11 to rotate, and the transmission shaft 11 drives the positioning plate 13 to rotate, thereby increasing the stability of the equipment and improving the accuracy of shredding, so that the first shredding tool 17 and the second shredding tool 20 can shred the paper evenly, and the transmission shaft 11 drives the gear 14 to rotate, the gear 14 drives the gear 2 16 to mesh and operate, the gear 2 16 drives the first shredding tool 17 to rotate, and the first shredding tool 17 drives the drive gear 18 rotates, the driving gear 18 drives the gear three 19 to mesh and rotate, and the gear three 19 drives the second shredding tool 20 to rotate, so that the first shredding tool 17 and the second shredding tool 20 can quickly shred the paper, so as to improve the efficiency of shredding paper. The stepper motor 7 is protected by the protective shell 6, the fixing frame 4 fixes the protective shell 6, and the fixing frame 4 is supported by the support plate 3, so as to increase the bearing capacity of the protective shell 6 and improve the safety of the equipment. The fixed disk 9 is used to limit the coil 10 to prevent the coil 10 from deviating and falling off, thereby reducing the risk of the equipment. The transmission shaft 11 is positioned and supported by the shaft disk 15, so that the equipment can operate stably.

[0046] Embodiment three:

[0047] Based on Example 1, please refer to Figure 2-Figure 10, also discloses a sleeve 27, whose specific structure is as follows: a gear three 19 is rotatably mounted on the outer surface of the driving gear 18, a second crushing tool 20 is fixedly mounted on the outer surface of the gear three 19, and the crushing mechanism includes the second crushing tool 20, and the driving gear 18 and the gear three 19 form a gear meshing structure, a rotating shaft 21 is fixedly mounted on the inner side surface of the second crushing tool 20, a limit plate 22 is fixedly mounted on the outer surface of the rotating shaft 21, and a bearing 23 is fixedly mounted on the inner side surface of the limit plate 22, and a fixed plate 24 is movably abutted on the outer surface of the bearing 23, a belt 25 is rotatably mounted on the outer surface of the rotating shaft 21, a connecting column 26 is rotatably mounted on the inner side surface of the belt 25, and a sleeve 27 is fixedly mounted on the outer surface of the connecting column 26, and a threaded inner side surface of the sleeve 27 is threadedly mounted Bolts 28 are installed, and the rotating shaft 21 and the belt 25 form a rotating structure. A transmission belt 29 is rotatably installed on the outer surface of the connecting column 26, and a driving rod 30 is rotatably installed on the inner side of the transmission belt 29. A fixed rod 31 is fixedly installed on the outer surface of the driving rod 30, and the connecting column 26 and the transmission belt 29 form a rotating structure. An irregular gear 32 is fixedly installed on the outer surface of the fixed rod 31, and a rack 33 is meshed with the outer surface gear of the irregular gear 32. The storage mechanism includes a rack 33, and a limited position frame 34 is slidably installed on the outer surface of the rack 33. A movable rod 35 is fixedly installed on one end of the rack 33, and a spring 36 is movably sleeved on the outer surface of the movable rod 35. A sliding block 37 is fixedly installed on the outer surface of the movable rod 35, and the movable rod 35 and the sliding block 37 form a telescopic structure.

[0048] The second shredding tool 20 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives the belt 25 to rotate, the belt 25 drives the connecting column 26 to rotate, the connecting column 26 drives the transmission belt 29 to rotate, the transmission belt 29 drives the driving rod 30 to rotate, and the driving rod 30 drives the fixed rod 31 to rotate, thereby improving the precision of shredding, preventing incomplete shredding of paper, and the shredded paper falling into the receiving box 2, and synchronously driving the irregular gear 32 to rotate through the fixed rod 31. When the irregular gear 32 rotates, the gear teeth on the irregular gear 32 will mesh with the rack 33, thereby driving the rack 33 to move, so that the rack 33 pushes the movable rod 35 to move, and at the same time the limit frame 34 has a fixed limit function on the rack 33 to prevent the rack 33 from falling off, and the rack 33 is driven by the movable rod 35 pushes the sliding block 37, thereby pushing the shredded paper into the storage box 39, so as to facilitate the cleaning of personnel and improve the efficiency of paper shredding. At the same time, when the rack 33 pushes the movable rod 35, the spring 36 will be squeezed. When the irregular gear 32 and the rack 33 end the meshing state, the movable rod 35 will reset the rack 33 under the reaction force of the spring 36, thereby realizing the cyclic reciprocating motion of the sliding block 37, and supporting the rotating shaft 21 through the fixed plate 24, limiting the rotating shaft 21 through the limiting plate 22, reducing the friction of the rotating shaft 21 through the bearing 23, thereby improving the service life of the equipment, and installing it on the storage box 2 through the connecting column 26, thereby increasing the supporting force of the connecting column 26 to achieve the purpose of improving the stability of the equipment.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic paper shredder with a curved paper lowering structure, comprising a housing (1) and a receiving box (2), characterized in that: Also includes: A support plate (3) is fixedly mounted on the inner side surface of the shell (1), a fixing frame (4) is fixedly mounted on the outer surface of the support plate (3), a storage box (39) is movably mounted on the inner end of the shell (1), and a fine-cutting pulverizing mechanism is provided between the support plate (3) and the storage box (39); A fixing plate (24) is fixedly mounted on the inner end of the shell (1), a connecting column (26) is movably mounted on the outer surface of the containing box (2), and a storage mechanism for auxiliary material discharge is provided between the fixing plate (24) and the connecting column (26); A receiving box (2) is fixedly mounted on the inner side of the shell (1), a protective shell (6) is fixedly mounted on the inner side of the shell (1), and a feeding mechanism for bending paper is provided between the receiving box (2) and the protective shell (6).

2. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: A paper feed guide port (38) is fixedly mounted on the inner side surface of the shell (1), the feeding mechanism comprises the paper feed guide port (38), a connecting rod (5) is fixedly mounted on the outer surface of the fixing frame (4), and a protective shell (6) is fixedly mounted on the outer surface of the fixing frame (4).

3. The automatic paper shredder with a curved paper lowering structure according to claim 2, characterized in that: An output shaft (8) is rotatably mounted on the outer surface of the stepper motor (7), a fixed disk (9) is fixedly mounted on the outer surface of the output shaft (8), a coil (10) is fixedly mounted on the outer surface of the output shaft (8), and a transmission shaft (11) is rotatably mounted on the inner side surface of the output shaft (8), and the output shaft (8) and the transmission shaft (11) form a rotating structure.

4. The automatic paper shredder with a curved paper lowering structure according to claim 3, characterized in that: A positioning sleeve (12) is fixedly mounted on the outer surface of the transmission shaft (11), a positioning disk (13) is fixedly mounted on the outer surface of the positioning sleeve (12), and a gear one (14) is fixedly mounted on the outer surface of the transmission shaft (11), and a shaft disk (15) is fixedly mounted on the outer surface of the gear one (14).

5. The automatic paper shredder with a curved paper lowering structure according to claim 4, characterized in that: The outer surface of the gear one (14) is rotatably mounted with a gear two (16), the outer surface of the gear two (16) is fixedly mounted with a first crushing tool (17), and the outer surface of the first crushing tool (17) is fixedly mounted with a driving gear (18), and a gear meshing structure is formed between the gear one (14) and the gear two (16).

6. The automatic paper shredder with a curved paper lowering structure according to claim 5, characterized in that: A gear three (19) is rotatably mounted on the outer surface of the driving gear (18), a second crushing tool (20) is fixedly mounted on the outer surface of the gear three (19), and the crushing mechanism includes the second crushing tool (20), and the driving gear (18) and the gear three (19) form a gear meshing structure.

7. The automatic paper shredder with a curved paper lowering structure according to claim 6, characterized in that: A rotating shaft (21) is fixedly mounted on the inner side surface of the second crushing tool (20), a limiting plate (22) is fixedly mounted on the outer surface of the rotating shaft (21), a bearing (23) is fixedly mounted on the inner side surface of the limiting plate (22), and a fixing plate (24) is movably abutted against the outer surface of the bearing (23).

8. The automatic paper shredder with a curved paper lowering structure according to claim 7, characterized in that: A belt (25) is rotatably mounted on the outer surface of the rotating shaft (21), a connecting column (26) is rotatably mounted on the inner surface of the belt (25), a shaft sleeve (27) is fixedly mounted on the outer surface of the connecting column (26), a bolt (28) is threadedly mounted on the inner surface of the shaft sleeve (27), and the rotating shaft (21) and the belt (25) form a rotating structure.

9. The automatic paper shredder with a curved paper lowering structure according to claim 8, characterized in that: A transmission belt (29) is rotatably mounted on the outer surface of the connecting column (26), a driving rod (30) is rotatably mounted on the inner side surface of the driving belt (29), a fixing rod (31) is fixedly mounted on the outer surface of the driving rod (30), and the connecting column (26) and the transmission belt (29) form a rotating structure.

10. The automatic paper shredder with a curved paper lowering structure according to claim 9, characterized in that: An irregular gear (32) is fixedly mounted on the outer surface of the fixed rod (31), and a rack (33) is meshed with the gear on the outer surface of the irregular gear (32). The storage mechanism comprises a rack (33), and a limit frame (34) is slidably mounted on the outer surface of the rack (33). A movable rod (35) is fixedly mounted on one end of the rack (33), and a spring (36) is movably sleeved on the outer surface of the movable rod (35). A sliding block (37) is fixedly mounted on the outer surface of the movable rod (35), and the movable rod (35) and the sliding block (37) form a telescopic structure.

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