Paper shredder for bills

Abstract

The utility model relates to the technical field of paper shredders, and discloses a paper shredder for bills, which comprises a bottom box and a top box, an accommodating cavity is arranged in the bottom box, a cutting mechanism is mounted close to the bottom end in the top box, a positioning mechanism is mounted close to the top end in the top box, the cutting mechanism comprises a first cutting roller and a second cutting roller, and the first cutting roller and the second cutting roller are arranged in the accommodating cavity. The first cutting roller and the second cutting roller are movably installed in the top box, first rotating teeth are fixedly installed at the same ends of the first cutting roller and the second cutting roller, a first motor is installed at the other end of the first cutting roller, a feeding groove is formed in the top of the top box, and a plurality of cutting grooves are formed in the periphery of the second cutting roller. According to the bill cutting device, bill paper can be cut into a plurality of strips, meanwhile, the strip-shaped bills are cut into rectangular sheets, collection after chopping is facilitated, and dust is reduced; the bills can be pressed and conveyed through the pressing roller, and the bill pressing device is suitable for pressing bills or paper with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of paper shredders, in particular to a paper shredder for bills. Background Art

[0002] A bill is a written certificate with a specific format and content. It usually contains a large amount of sensitive information and needs to be destroyed when it is no longer needed. However, bills are usually in paper form and easy to recycle, so they need to be shredded and recycled through a shredder.

[0003] The publication number is CN216499837U, which provides a long-lasting accounting bill shredder, including a box body, a drawer installed at the bottom of one end of the box body, a connecting shell fixedly connected to the top of the connecting shell, a feed port fixedly connected to the top of the inner wall at both ends of the box body, and two rollers rotatably connected to the top.

[0004] The above-mentioned shredder has the ability to efficiently shred bills and improve their durability. However, during the bill shredding process, repeated cutting easily generates dust that spreads outward. The cut shapes and sizes are different, which is inconvenient to collect. It is not convenient to cut the bill paper into rectangular sheets. The bill is easy to slide and bounce during transportation, which is inconvenient to compress and transport bills or papers of different thicknesses. Utility Model Content

[0005] The purpose of the utility model is to provide a bill shredder to solve the technical problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A bill shredder comprises a bottom box and a top box, wherein the bottom box is provided with a accommodating cavity, a cutting mechanism is installed near the bottom end of the top box, and a positioning mechanism is installed near the top end of the top box, the cutting mechanism comprises a first cutting roller and a second cutting roller, the first cutting roller and the second cutting roller are movably installed inside the top box, a first rotating tooth is fixedly installed on the same end of the first cutting roller and the second cutting roller, a first motor is installed on the other end of the first cutting roller, a feeding trough is provided on the top of the top box, a plurality of cutting grooves are provided on the periphery of the second cutting roller, a plurality of cutting rings are fixedly installed on the outside of the first cutting roller, and a plurality of slices are fixedly installed between each of the cutting rings.

[0008] Preferably, the output shaft of the first motor is fixedly connected to the rotating shaft of the first cutting roller, and the two first rotating teeth are meshedly connected.

[0009] Preferably, there is a gap between the second cutting roller and the first cutting roller, and the spacing between each cutting groove corresponds to each cutting ring.

[0010] Preferably, the cutting rings are positioned in the cutting grooves and matched with each other, and the slices are arranged perpendicularly between the outside of the first cutting roller and the cutting rings.

[0011] Preferably, the positioning mechanism includes two pressure rollers and two transmission boxes, the two pressure rollers are movably mounted inside the top end of the top box, a second motor is mounted at one end of one of the pressure rollers, the two transmission boxes are respectively mounted on both sides of the top box, the outer ends of the rotating shafts at both ends of the other pressure roller are movably mounted with shaft blocks, shaft grooves are provided on both sides of the top box near the rear end, a guide rod is fixedly mounted inside the transmission box, the shaft block is sleeved on the outside of the guide rod, and a spring is sleeved on the outside of the guide rod near the rear end.

[0012] Preferably, the output shaft of the second motor is fixedly connected to the rotating shaft of the pressure roller, and the exteriors of the two pressure rollers are both sleeved with rubber sleeves.

[0013] Preferably, the shaft block is movably connected to the rotating shaft of the pressure roller, and the shaft block is sleeved on the periphery of the guide rod and is slidably arranged.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1) The bill shredder is provided with a cutting mechanism. The first motor drives the first cutting roller to rotate, and the meshing action of the first rotating teeth drives the second cutting roller to rotate in the opposite direction. The cutting ring cuts into the cutting groove during the rotation, and can cut the bill paper into several strips. Through several horizontal slices, the strip bill can be cut into rectangular sheets, which facilitates the rapid shredding of the bill and the collection after shredding, reducing the generation of dust.

[0016] 2) The bill shredder is provided with a positioning mechanism. The second motor drives the corresponding pressure roller to rotate. The other pressure roller rotates through the connection of the shaft block. The shaft block slides forward under the action of the spring, enabling the two pressure rollers to press the bills for transportation. The sliding of the shaft block is suitable for pressing bills or papers of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a bill shredder in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the cutting mechanism in an embodiment of the present utility model;

[0019] Figure 3 In the embodiment of the present utility model Figure 2 A magnified view of point A;

[0020] Figure 4 This is a schematic diagram of the internal structure of the positioning mechanism in an embodiment of the present utility model;

[0021] Figure 5 It is the overall internal front view of the embodiment of the present utility model.

[0022] In the figure: 1. bottom box; 2. top box; 3. accommodating chamber; 4. cutting mechanism; 5. positioning mechanism; 6. first cutting roller; 7. second cutting roller; 8. first rotating gear; 9. first motor; 10. feeding trough; 11. cutting groove; 12. cutting ring; 13. slicing; 14. pressing roller; 15. transmission box; 16. second motor; 17. shaft groove; 18. guide rod; 19. shaft block; 20. spring. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] Combine Figure 1-Figure 5 A bill shredder includes a bottom box 1 and a top box 2. The bottom box 1 is provided with a receiving cavity 3, the top box 2 is provided with a cutting mechanism 4 at the bottom end, and the top box 2 is provided with a positioning mechanism 5 at the top end.

[0026] See Figure 2 and Figure 3 , it is further obtained that the cutting mechanism 4 includes a first cutting roller 6 and a second cutting roller 7, the first cutting roller 6 and the second cutting roller 7 are movably installed inside the top box 2, the first cutting roller 6 and the second cutting roller 7 have the same end fixedly installed with a first rotating tooth 8, the other end of the first cutting roller 6 is installed with a first motor 9, a feeding trough 10 is provided on the top of the top box 2, a plurality of cutting grooves 11 are provided on the periphery of the second cutting roller 7, a plurality of cutting rings 12 are fixedly installed on the outside of the first cutting roller 6, and a plurality of slices 13 are fixedly installed between each cutting ring 12.

[0027] The output shaft of the first motor 9 is fixedly connected to the rotating shaft of the first cutting roller 6 , and the two first rotating teeth 8 are meshedly connected.

[0028] There is a gap between the second cutting roller 7 and the first cutting roller 6 , and the spacing between each cutting groove 11 corresponds to each cutting ring 12 .

[0029] The cutting ring 12 is located in the cutting groove 11 and is matched with each other. The slice 13 surrounds the outside of the first cutting roller 6 and is perpendicular to the cutting ring 12.

[0030] Specifically, the bill paper enters the top box 2 through the feed trough 10, the first motor 9 drives the first cutting roller 6 to rotate, and drives the second cutting roller 7 to rotate in the opposite direction under the meshing action of the first rotating tooth 8. The bill paper is located between the first cutting roller 6 and the second cutting roller 7, and is cut into several strips by the cutting ring 12 and cut horizontally into several rectangular sheets by the slice 13. The shredded bill paper falls into the accommodating chamber 3 in the bottom box 1 and is collected by placing a collecting tube in the accommodating chamber 3.

[0031] Example 2

[0032] See Figure 4 , and on the basis of Example 1, it is further obtained that the positioning mechanism 5 includes two pressure rollers 14 and two transmission boxes 15, the two pressure rollers 14 are movably installed inside the top box 2, one end of one of the pressure rollers 14 is equipped with a second motor 16, the two transmission boxes 15 are respectively installed on both sides of the top box 2, the outer end of the rotating shaft at both ends of the other pressure roller 14 is movably equipped with a shaft block 19, both sides of the top box 2 are provided with a shaft groove 17 near the rear end, a guide rod 18 is fixedly installed inside the transmission box 15, the shaft block 19 is sleeved on the outside of the guide rod 18, and the outside of the guide rod 18 is sleeved with a spring 20 near the rear end.

[0033] The output shaft of the second motor 16 is fixedly connected to the rotating shaft of the pressure roller 14 , and the exteriors of the two pressure rollers 14 are both sleeved with rubber sleeves.

[0034] The shaft block 19 is movably connected to the rotating shaft of the pressure roller 14 , and the shaft block 19 is sleeved on the outer periphery of the guide rod 18 and is slidably arranged.

[0035] Specifically, the corresponding pressure roller 14 is driven to rotate by the second motor 16, and the other pressure roller 14 is rotated by the shaft block 19. The shaft block 19 slides forward under the action of the spring 20, so that the two pressure rollers 14 are pressed against each other, and then the bill paper is pressed and transported inward. By sliding the pressure roller 14 back and forth, the distance between the two pressure rollers 14 is changed, which can be suitable for pressing bills and papers of different thicknesses.

[0036] In actual operation, bill paper is fed into the top box 2 from the feed slot 10, and the bill paper is shredded by the first cutting roller 6 and the second cutting roller 7. The shredded bill paper is collected by placing the collecting cylinder into the receiving cavity 3 of the bottom box 1;

[0037] When conveying bills, the second motor 16 is started to rotate the corresponding pressure roller 14. The bill is conveyed downward between the two pressure rollers 14. The other pressure roller 14 rotates through the connection of the shaft block 19. The shaft block 19 slides forward under the action of the spring 20, so that the two pressure rollers 14 press the bill tightly for conveyance, preventing it from slipping or bouncing. During the sliding process of the shaft block 19, the rotating shafts at both ends of the pressure roller 14 slide in the shaft groove 17.

[0038] When the bill paper is shredded, the bill is conveyed between the first cutting roller 6 and the second cutting roller 7. By starting the first motor 9 to drive the first cutting roller 6 to rotate, the second cutting roller 7 is driven to rotate in the opposite direction under the meshing action of the first rotating tooth 8. The cutting ring 12 cuts into the cutting groove 11 to cut the bill into several strips. The horizontal slices 13 cut the strip bill into rectangular sheets. The shredded bills fall into the accommodating chamber 3 for collection.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bill shredder, comprising a bottom box (1) and a top box (2), wherein a receiving chamber (3) is provided inside the bottom box (1), and characterized in that: A cutting mechanism (4) is installed at the bottom of the top box (2), and a positioning mechanism (5) is installed at the top of the top box (2); The cutting mechanism (4) comprises a first cutting roller (6) and a second cutting roller (7), the first cutting roller (6) and the second cutting roller (7) being movably mounted inside the top box (2), a first rotating tooth (8) being fixedly mounted on the same end of the first cutting roller (6) and the second cutting roller (7), a first motor (9) being mounted on the other end of the first cutting roller (6), a feed trough (10) being provided on the top of the top box (2), a plurality of cutting grooves (11) being provided on the periphery of the second cutting roller (7), a plurality of cutting rings (12) being fixedly mounted on the outside of the first cutting roller (6), and a plurality of slices (13) being fixedly mounted between each of the cutting rings (12).

2. The bill shredder according to claim 1, characterized in that: The output shaft of the first motor (9) is fixedly connected to the rotating shaft of the first cutting roller (6), and the two first rotating teeth (8) are meshedly connected.

3. The bill shredder according to claim 1, characterized in that: There is a gap between the second cutting roller (7) and the first cutting roller (6), and the spacing between each cutting groove (11) corresponds to each cutting ring (12).

4. The bill shredder according to claim 1, characterized in that: The cutting rings (12) are located in the cutting grooves (11) and are matched with each other. The slices (13) surround the outside of the first cutting roller (6) and are perpendicular to the cutting rings (12).

5. The bill shredder according to claim 1, characterized in that: The positioning mechanism (5) comprises two pressing rollers (14) and two transmission boxes (15), wherein the two pressing rollers (14) are movably mounted inside the top end of the top box (2), a second motor (16) is mounted on one end of one of the pressing rollers (14), and the two transmission boxes (15) are respectively mounted on both sides of the top box (2). The outer ends of the rotating shafts at both ends of the other pressing roller (14) are movably mounted with shaft blocks (19), shaft grooves (17) are provided on both sides of the top box (2) at the rear end, a guide rod (18) is fixedly mounted inside the transmission box (15), the shaft block (19) is sleeved on the outside of the guide rod (18), and a spring (20) is sleeved on the outside of the guide rod (18) at the rear end.

6. The bill shredder according to claim 5, characterized in that: The output shaft of the second motor (16) is fixedly connected to the rotating shaft of the pressure roller (14), and the exteriors of the two pressure rollers (14) are both sleeved with rubber sleeves.

7. The bill shredder according to claim 5, characterized in that: The shaft block (19) is movably connected to the rotating shaft of the pressure roller (14), and the shaft block (19) is sleeved on the periphery of the guide rod (18) in a sliding arrangement.

Images