Paper edge shredding machine

Abstract

The utility model relates to the technical field of paper edge shredding machines, in particular to a paper edge shredding machine which comprises a paper shredding machine frame, a gear motor is fixedly installed at the rear end of the paper shredding machine frame, the output end of the gear motor is fixedly connected with a first transmission shaft, a first gear is fixedly connected to the first transmission shaft, and the right end of the first gear is connected with a second gear in a meshed mode. The top of the second gear is connected with a third gear in a meshed mode, the bottom of the second gear is connected with a fourth gear in a meshed mode, the top of the first gear is connected with a fifth gear in a meshed mode, the bottom of the first gear is connected with a sixth gear in a meshed mode, and a paper inlet is fixedly formed in the top of the paper shredding rack. The acting force on the paper flash is pressure, and the paper flash is snapped by utilizing torque generated by differential speed of the rollers, so that the paper flash is not damaged even if foreign matters such as iron nails, nuts and tools are mixed with the paper flash; compared with paper crushing equipment such as scissors and cutters, the paper crushing device has the advantages that the paper crushing device is not easy to damage and does not need to frequently sharpen a knife edge.

Description

Technical Field

[0001] This utility model relates to the technical field of paper edge shredders, specifically a paper edge shredder. Background Technology

[0002] Existing paper shredders generally include a housing with a strip opening for paper to enter. A rotating shaft is located on each side below the strip opening, and blades are mounted on the rotating shafts. A motor is installed inside the housing to drive the rotating shafts to rotate, which in turn rolls the paper into the housing and shreds it.

[0003] Paper scraps can easily contain foreign objects such as nails, nuts, and tools. The blades on the drive shaft are prone to damage after prolonged use, so they need to be replaced frequently. Furthermore, the slitting structure is prone to paper choking, which requires disassembling the box for repair.

[0004] Therefore, we invented a paper edge shredder. Utility Model Content

[0005] The purpose of this invention is to provide a paper edge shredder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A paper shredder includes a shredder frame. A reduction motor is fixedly installed at the rear end of the shredder frame. The output end of the reduction motor is fixedly connected to a drive shaft 1. A gear 1 is fixedly connected to the drive shaft 1. A gear 2 is meshed with the right end of the gear 1. A gear 3 is meshed with the top of the gear 2. A gear 4 is meshed with the bottom of the gear 2. A gear 5 is meshed with the top of the gear 1. A gear 6 is meshed with the bottom of the gear 1. A paper inlet is fixedly installed at the top of the shredder frame. A paper outlet is fixedly installed at the bottom of the shredder frame. A drive shaft 3 is fixedly installed in the middle of the gear 3. A drive shaft 5 is fixedly installed in the middle of the gear 5. A paper feed roller is fixedly installed on the drive shafts 3 and 5. A drive shaft 6 is fixedly installed in the middle of the gear 6. A drive shaft 4 is fixedly installed in the middle of the gear 4. Shredder rollers are fixedly installed on the drive shafts 4 and 6. The diameters of the gears 4 and 6 are the same. The diameters of the gears 3 and 5 are the same. The diameters of the gears 4 and 6 are smaller than the diameters of the gears 3 and 5.

[0008] In a preferred embodiment of this utility model, a transmission shaft is fixedly installed in the middle of the gear two, and the transmission shaft two is rotatably connected to the paper shredder frame.

[0009] In a preferred embodiment of this utility model, a plate is fixedly installed on one side of the shredder frame, a positioning sleeve is fixedly installed on the plate, a screw is provided inside the positioning sleeve, a slider is threadedly connected to the side of the screw away from the positioning sleeve, a groove is opened at the end of the slider facing the plate, and a spring is installed inside the groove.

[0010] In a preferred embodiment of this utility model, the plate body is provided with four sets, and the third and fourth transmission shafts are connected to the plate body through bearings.

[0011] In a preferred embodiment of this utility model, the transmission shaft five and the transmission shaft six are connected to the shredder frame through bearings. The shredder frame is equipped with a paper guide bracket one and a paper guide bracket two. The paper guide bracket one is located on one side of the transmission shaft one, and the paper guide bracket two is located on one side of the transmission shaft two.

[0012] In a preferred embodiment of this utility model, the surfaces of the paper feed roller and the shredder roller are set to a smooth surface or a knurled surface.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0014] The diameters of gears four and six are smaller than those of gears three and five, which makes the speed of the feed roller greater than that of the shredder roller. The paper scraps are stretched in the middle area between the rollers with different speeds, and the paper fibers are shortened, thereby achieving the shredding effect.

[0015] The slider exerts an elastic force on gears three and four, and the spring is in a compressed state. The spring presses the drive shafts three and four onto the paper scrap edge. Even if the paper scrap edge has different thicknesses, it can ensure sufficient pressure to adapt to the breaking and tearing of paper scrap edge with different thicknesses.

[0016] The surfaces of the feed roller and shredder roller are set to smooth or knurled surfaces. The force applied to the paper scrap is pressure, and the torque generated by the roller differential speed breaks the paper scrap. Even if the paper scrap contains foreign objects such as nails, nuts, tools, etc., it will not be damaged. Compared with paper shredding equipment such as scissors and cutters, it has the advantages of being less prone to damage and not requiring frequent blade sharpening. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 A three-dimensional paper edge shredder Figure 1 ;

[0019] Figure 2This is a schematic diagram of the internal structure of a paper edge shredder.

[0020] Figure 3 A schematic diagram of the structure of a paper shredder. Figure 1 ;

[0021] Figure 4 A schematic diagram of the structure of a paper shredder. Figure 2 ;

[0022] Figure 5 A schematic diagram of the structure of a paper shredder. Figure 3 .

[0023] In the diagram: 1. Shredder frame; 2. Gear motor; 3. Drive shaft 1; 4. Gear 1; 5. Drive shaft 2; 6. Gear 3; 7. Drive shaft 3; 8. Gear 4; 9. Drive shaft 4; 10. Gear 5; 11. Drive shaft 5; 12. Gear 6; 13. Drive shaft 6; 14. Paper inlet; 15. Paper outlet; 16. Paper feed roller; 17. Shredder roller; 18. Paper guide bracket 1; 19. Paper guide bracket 2; 20. Plate; 21. Screw; 22. Positioning sleeve; 23. Spring; 24. Slider; 25. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Please refer to Figure 1-5 A paper shredder includes a shredder frame 1. A reduction motor 2 is fixedly installed at the rear end of the shredder frame 1. The output end of the reduction motor 2 is fixedly connected to a drive shaft 3. A gear 4 is fixedly connected to the drive shaft 3. A gear 5 is meshed with the right end of gear 4. A gear 7 is meshed with the top of gear 5. A gear 9 is meshed with the bottom of gear 5. A gear 11 is meshed with the top of gear 4. A gear 13 is meshed with the bottom of gear 4. A paper inlet 15 is fixedly installed at the top of the shredder frame 1. A paper outlet 16 is fixedly installed at the bottom of the shredder frame 1. Gear 7 is fixed in the middle. A drive shaft 38 is installed, a drive shaft 512 is fixedly installed in the middle of a gear 511, a paper feed roller 17 is fixedly installed on drive shaft 38 and drive shaft 512, a drive shaft 614 is fixedly installed in the middle of a gear 613, a drive shaft 410 is fixedly installed in the middle of a gear 49, a shredder roller 18 is fixedly installed on drive shaft 410 and drive shaft 614, gear 49 and gear 613 have the same diameter, and gear 37 and gear 511 have the same diameter. Specifically, the reduction motor 2 rotates gear 14, gear 14 rotates gear 25, and gear 25 simultaneously rotates gear 37 and gear 49.

[0026] Gear 14 rotates simultaneously with gear 511 and gear 613. Since the diameters of gear 49 and gear 613 are smaller than the diameters of gear 37 and gear 511, the rotation speed of the feed roller 17 is greater than that of the shredder roller 18. The paper scraps are stretched in the middle area between the rollers with different rotation speeds, and the paper fibers are shortened, thereby achieving the shredding effect.

[0027] A transmission shaft 6 is fixedly installed in the middle of gear 2 5, and the transmission shaft 2 6 is rotatably connected to the shredder frame 1.

[0028] A plate 21 is fixedly installed on one side of the paper shredder frame 1. A positioning sleeve 23 is fixedly installed on the plate 21. A screw 22 is provided inside the positioning sleeve 23. A slider 25 is threadedly connected to the side of the screw 22 away from the positioning sleeve 23. A groove is opened at the end of the slider 25 facing the plate 21, and a spring 24 is installed inside the groove. Specifically, the slider 25 has an elastic force on gear 3 7 and gear 4 9. The spring 24 is in a compressed state. The spring 24 presses the drive shaft 3 8 and drive shaft 4 10 onto the paper scrap edge. Even if the paper scrap edge has different thicknesses, it can ensure sufficient pressure to adapt to the tearing of paper scrap edges of different thicknesses.

[0029] The plate 21 is provided with four sets of transmission shafts, namely the third transmission shaft 8 and the fourth transmission shaft 10, which are connected to the plate 21 through bearings.

[0030] Drive shaft 5 12 and drive shaft 6 14 are connected to shredder frame 1 through bearings. Inside shredder frame 1 are paper guide bracket 1 19 and paper guide bracket 20. Paper guide bracket 1 19 is located on one side of drive shaft 1 3, and paper guide bracket 20 is located on one side of drive shaft 2 6.

[0031] The surfaces of the feed roller 17 and the shredder roller 18 are set to smooth or knurled surfaces. The force exerted on the paper scrap is pressure, and the torque generated by the roller differential speed pulls the paper scrap off. Even if the paper scrap contains foreign objects such as nails, nuts, tools, etc., it will not be damaged. Compared with paper shredding equipment such as scissors and cutters, it has the advantages of not being easily damaged and not needing frequent blade sharpening.

[0032] The working principle of this utility model is as follows: the reduction motor 2 rotates gear 4, gear 4 rotates gear 5, gear 5 rotates gear 7 and gear 9 at the same time; gear 4 rotates gear 11 and gear 13 at the same time. Since the diameter of gear 9 and gear 13 is smaller than the diameter of gear 7 and gear 11, the speed of the feed roller 17 is greater than the speed of the shredder roller 18. The paper scrap enters the shredder frame 1 from the feed port 15. The paper scrap is stretched in the middle area between the rollers with different speeds, and the paper fibers are shortened, thereby achieving the shredding effect. Then it is discharged from the output port 16.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A paper edge shredder, characterized in that: The shredder includes a shredder frame (1), a geared motor (2) fixedly installed at the rear end of the shredder frame (1), a drive shaft (3) fixedly connected to the output end of the geared motor (2), a gear (4) fixedly connected to the drive shaft (3), a gear (5) meshing with the right end of the gear (4), a gear (7) meshing with the top of the gear (5), a gear (9) meshing with the bottom of the gear (5), a gear (11) meshing with the top of the gear (4), a gear (13) meshing with the bottom of the gear (4), a paper inlet (15) fixedly installed at the top of the shredder frame (1), and a paper outlet (16) fixedly installed at the bottom of the shredder frame (1). A drive shaft three (8) is fixedly installed in the middle of the gear three (7), a drive shaft five (12) is fixedly installed in the middle of the gear five (11), a paper feed roller (17) is fixedly installed on the drive shaft three (8) and the drive shaft five (12), a drive shaft six (14) is fixedly installed in the middle of the gear six (13), a drive shaft four (10) is fixedly installed in the middle of the gear four (9), a shredder roller (18) is fixedly installed on the drive shaft four (10) and the drive shaft six (14), the gear four (9) and the gear six (13) have the same diameter, the gear three (7) and the gear five (11) have the same diameter, and the diameter of the gear four (9) and the gear six (13) is smaller than the diameter of the gear three (7) and the gear five (11).

2. The paper edge shredder according to claim 1, characterized in that, The gear 2 (5) has a transmission shaft 2 (6) fixedly installed in the middle, and the transmission shaft 2 (6) is rotatably connected to the shredder frame (1).

3. A paper edge shredder according to claim 1, characterized in that, A plate (21) is fixedly installed on one side of the shredder frame (1). A positioning sleeve (23) is fixedly installed on the plate (21). A screw (22) is provided inside the positioning sleeve (23). A slider (25) is threadedly connected to the side of the screw (22) away from the positioning sleeve (23). A groove is provided at the end of the slider (25) facing the plate (21), and a spring (24) is installed inside the groove.

4. A paper edge shredder according to claim 3, characterized in that, The plate (21) is provided with four sets of transmission shafts, and the third (8) and the fourth (10) are connected to the plate (21) through bearings.

5. A paper edge shredder according to claim 1, characterized in that, The drive shaft five (12) and drive shaft six (14) are connected to the shredder frame (1) via bearings. The shredder frame (1) is equipped with a paper guide bracket one (19) and a paper guide bracket two (20). The paper guide bracket one (19) is located on one side of the drive shaft one (3), and the paper guide bracket two (20) is located on one side of the drive shaft two (6).

6. A paper edge shredder according to claim 1, characterized in that, The surfaces of the paper feed roller (17) and the shredder roller (18) are set to smooth or knurled surfaces.

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