A paper shredder with double circulating water cooling structure

Abstract

The utility model discloses a kind of paper shredder with double circulating water cooling structure, including body, the body inside middle position is equipped with paper shredding roller, the paper shredding roller below is broken material chamber, the water cooling circulation machine is provided at the left side of body, the double circulating water cooling structure is provided at the right side of water cooling circulation machine, and double circulating water cooling structure is composed of wall cooling component and roll cooling component;Wall cooling component includes the cooling wall cavity of being set to the front and rear end of body inner wall, cooling coil is installed in the cooling wall cavity, roll cooling component includes the cooling cylinder that is penetrated in paper shredding roller, cooling cylinder both sides extend to body outside, water pump is fixed at the right side of water cooling circulation machine, water pump water delivery end is connected to flow divider, two groups of electromagnetic valve are arranged in the flow divider.The utility model is provided with double circulating water cooling structure, effectively reduce the heat accumulation generated in paper shredding process, reduce the thermal expansion deformation of cutter tooth and paper shredding roller due to high temperature, prolong the service life of key components, improve the reliability of paper shredding system.

Description

Technical Field

[0001] This utility model relates to the field of paper shredder technology, specifically a paper shredder with a dual-circulation water-cooling structure. Background Technology

[0002] Factories or waste recycling stations shred batches of old books, archives, and other paper media before packaging and recycling them to improve recycling efficiency. The shredders used are suitable for everyday document recycling. However, current book recycling shredders on the market still have some shortcomings, such as:

[0003] Most paper shredders lack dedicated cooling structures. When processing thick books, the high-frequency friction between the shredder rollers and the blades easily generates a large amount of heat, causing the temperature at the root of the blades and the shaft area to rise too quickly. This leads to thermal expansion and changes in component gaps, and even deformation and loosening, thus affecting cutting efficiency. Prolonged high temperatures can also easily cause lubrication failure and component fatigue, shortening the equipment's lifespan and increasing maintenance costs.

[0004] Therefore, there is an urgent need for a paper shredder with a dual-circulation water-cooling structure to solve the above-mentioned technical defects. Utility Model Content

[0005] The purpose of this invention is to provide a paper shredder with a dual-circulation water-cooling structure to solve the problems mentioned in the background art, such as the lack of a dedicated cooling structure, which affects cutting efficiency, the long-term high temperature of the blades shortening the service life of the equipment, and increasing maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper shredder with a dual-circulation water-cooling structure, comprising a machine body, a shredding roller installed in the middle of the machine body, a shredding chamber below the shredding roller, a water-cooling circulator on the left side of the machine body, and a dual-circulation water-cooling structure on the right side of the water-cooling circulator. The dual-circulation water-cooling structure consists of a wall-cooling component and a roller-cooling component. The wall-cooling component includes cooling wall cavities located at the front and rear ends of the inner wall of the machine body, and a cooling coil installed in the cooling wall cavity. The roller-cooling component includes a cooling cylinder penetrating the shredding roller, with both sides of the cooling cylinder extending to the outside of the machine body. A water pump is fixed on the right side of the water-cooling circulator, and the water pump's water delivery end is connected to a distributor. The distributor is equipped with two sets of solenoid valves. Water inlet pipes are connected between the cooling cylinder inlet, the cooling coil inlet, and the solenoid valves, respectively. Return pipes are connected between the cooling cylinder outlet, the cooling coil outlet, and the water-cooling circulator, respectively.

[0007] As a further technical solution of this utility model, a reduction motor is fixed in the middle of the right side of the outer wall of the machine body, and the output shaft of the reduction motor drives the shredder roller to rotate through the transmission sprocket and the transmission belt.

[0008] As a further technical solution of this utility model, multiple sets of cutting teeth are arranged at both ends of the inner wall of the machine body, and the roots of the cutting teeth are welded to the wall surface where the cooling wall cavity is located.

[0009] As a further technical solution of this utility model, a shredding chamber is provided below the shredding roller, and a paper scrap outlet is installed at the bottom of the shredding chamber. The paper scrap outlet extends at a 30° angle to the bottom of the front end of the machine body.

[0010] As a further technical solution of this utility model, an adjustment motor is fixedly installed on the upper right side of the machine body, a first gear is fixedly sleeved on the output shaft of the adjustment motor, a second gear is meshed above the first gear, and a guide frame is fixedly connected to the left side of the second gear.

[0011] As a further technical solution of this utility model, the guide frame is movably assembled inside the machine body, and the upper part of the guide frame is the machine body inlet.

[0012] As a further technical solution of this utility model, the guide frame includes a set of horizontal frames and three sets of vertical plates, with the bottom of the vertical plates corresponding to the gaps on both sides of the shredder roller and the blade teeth.

[0013] As a further technical solution of this utility model, an electrical control box is provided at the bottom right side of the machine body, and each electrical component inside the machine body is electrically connected to the electrical control box.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting up a dual-circulation water cooling structure, the heat accumulation generated during the shredding process is effectively reduced, the thermal expansion deformation of the blades and shredding rollers caused by high temperature is reduced, the service life of key components is extended, and the reliability of the shredding system is improved.

[0015] By incorporating a geared motor, shredder rollers, and multiple sets of blades, continuous shearing is achieved, enabling the shredding and discharge of thick paper such as old books, thus reducing the risk of clogging.

[0016] The system is equipped with a guide frame, a first gear, a second gear, and an adjusting motor to ensure that books are fed vertically, preventing them from piling up haphazardly and improving shredding efficiency. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a top view of the shredder roller structure of this utility model;

[0019] Figure 3 This is a front view schematic diagram of the shunt structure of this utility model;

[0020] Figure 4 This is a side view of the guide frame structure of this utility model.

[0021] In the diagram: 1. Machine body; 2. Guide frame; 3. Second gear; 4. First gear; 5. Adjusting motor; 6. Shredder roller; 7. Cooling wall cavity; 8. Cooling coil; 9. Return pipe; 10. Gear motor; 11. Electrical control box; 12. Paper scrap outlet; 13. Shredder chamber; 14. Water pump; 15. Water-cooled circulator; 16. Diverter; 17. Cooling cylinder; 18. Blade teeth; 19. Solenoid valve; 20. Water inlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a paper shredder with a dual-circulation water-cooling structure, comprising a body 1, a shredding roller 6 installed in the middle of the body 1, a shredding chamber 13 below the shredding roller 6, a water-cooling circulator 15 arranged on the left side of the body 1, and a dual-circulation water-cooling structure arranged on the right side of the water-cooling circulator 15. The dual-circulation water-cooling structure consists of a wall-cooling component and a roller-cooling component. The wall-cooling component includes cooling wall cavities 7 disposed at the front and rear ends of the inner wall of the body 1, and cooling coils 8 are installed in the cooling wall cavities 7. The roller-cooling component includes a cooling cylinder 17 penetrating the shredding roller 6, with both sides of the cooling cylinder 17 extending to the body 1. Externally, a water pump 14 is fixed on the right side of the water-cooled circulator 15. The water pump 14 is connected to the distributor 16. The distributor 16 is equipped with two sets of solenoid valves 19. The solenoid valves 19 are model 2W-160-15. They independently control the water inlet according to the temperature or on / off command. The water inlet of the cooling cylinder 17 and the water inlet of the cooling coil 8 are respectively connected to the solenoid valves 19 by water inlet pipes 20. The water outlet of the cooling cylinder 17 and the water outlet of the cooling coil 8 are respectively connected to the water-cooled circulator 15 by return pipes 9. Multiple sets of blades 18 are arranged at both ends of the inner wall of the machine body 1. The roots of the blades 18 are welded to the wall surface where the cooling wall cavity 7 is located.

[0024] Specifically, such as Figure 1 and Figure 2As shown, the water-cooled circulating machine 15 is model CW-3000AG. After the water-cooled circulating machine 15 is started, the cooling water first enters the distributor 16 for two-way splitting. One stream of cooling water flows through the inlet pipe 20 into the cooling cylinder 17 to cool the inner cavity of the shredder roller 6. Then it is discharged from the other end of the cooling cylinder 17 and flows back to the water-cooled circulating machine 15 through the return pipe 9 to achieve circulation. The other stream of cooling water enters the cooling wall cavity 7 set on the front and rear inner walls of the machine body 1 through another set of inlet pipes 20. It forms heat exchange with the blades 18 on the wall through the cooling coil 8, cooling the blades 18 from the root. After cooling is completed, it also returns to the water-cooled circulating machine 15 through the return pipe 9, thereby realizing independent and continuous water-cooled circulation of the blades 18 and the shredder roller 6.

[0025] A geared motor 10 is fixed in the middle of the right side of the outer wall of the machine body 1. The output shaft of the geared motor 10 drives the paper shredder 6 to rotate through the transmission sprocket and the transmission belt. A shredding chamber 13 is provided below the paper shredder 6. A paper scrap outlet 12 is installed at the bottom of the shredding chamber 13. The paper scrap outlet 12 extends at a 30° angle to the bottom of the front end of the machine body 1. An electrical control box 11 is provided at the bottom right side of the machine body 1. All electrical components inside the machine body 1 are electrically connected to the electrical control box 11.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the geared motor 10 is model RV40-30. The output shaft of the geared motor 10 drives the shredder roller 6 to rotate stably through the sprocket assembly. The shredder roller 6 maintains a certain meshing gap with multiple sets of blades 18. When the old book is introduced by the guide frame 2, its thick paper pages are clamped between the shredder roller 6 and the blades 18. During the rotation, a continuous staggered shearing force is formed to cut the paper into strips. The shreds fall into the shredding chamber 13 below by gravity and are then automatically discharged to the outside through the inclined paper shredder outlet 12.

[0027] The guide frame 2 is movably assembled inside the machine body 1. The upper part of the guide frame 2 is the inlet of the machine body 1. The guide frame 2 includes a set of horizontal frames and three sets of vertical plates. The bottom of the vertical plates corresponds to the gaps on both sides between the shredder roller 6 and the blade teeth 18.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the guide frame 2 is located above the inlet of the machine body 1 and consists of a set of horizontal frames and three sets of vertical plates. The bottom of the three sets of vertical plates are aligned with the gap area between the shredder roller 6 and the blade teeth 18 so that the books can be vertically fed in and will not be piled up messily.

[0029] An adjustment motor 5 is fixedly installed on the upper right side of the machine body 1. The output shaft of the adjustment motor 5 is fixedly sleeved with a first gear 4. A second gear 3 is meshed above the first gear 4. A guide frame 2 is fixedly connected to the left side of the second gear 3.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, the adjusting motor 5 is model 57BYGH76-280A. With the encoder feedback, it can achieve precise position control. The adjusting motor 5 drives the first gear 4 and the second gear 3 to mesh and link, so as to make fine adjustments to the left and right movement or forward and backward tilt of the guide frame 2. The size of the shredder roller 6 is adapted to facilitate the compatibility of the lifting device and the later upgrade and maintenance.

[0031] Working Principle: The user places the old books to be shredded into the top inlet of the machine body 1. The books first enter the guide rack 2, which consists of a set of horizontal frames and three sets of vertical plates. The bottom end corresponds to the gap area between the shredder roller 6 and the blade teeth 18, ensuring that the books are guided vertically without tilting or jamming. After the books are guided to the shearing zone between the shredder roller 6 and the blade teeth 18, the output shaft of the reduction motor 10 drives the shredder roller 6 to rotate stably through the sprocket assembly. The shredder roller 6 and the multiple sets of blade teeth 18 fixed to the inner wall of the machine body 1 form a continuous engagement, and the books are shredded under the action of shearing force. The shredded paper falls into the shredding chamber 13 below and then slides out through the inclined paper scrap outlet 12 for easy collection. During the shredding process, due to the intense friction between the shredder roller 6 and the blade teeth 18, heat is continuously generated. To ensure that the equipment does not undergo thermal expansion and deformation during long-term operation, the device is equipped with a dual circulation system. Temperature control is achieved through a water-cooled structure: The water-cooled circulator 15 sends cold water into the distributor 16, which divides it into two streams. One stream flows into the cooling cylinder 17 through the first set of solenoid valves 19 and the inlet pipe 20. The cooling cylinder 17 passes through the shredder roller 6 and cools its interior. The cooled water after heat exchange is discharged from the other end and returned to the water-cooled circulator 15 through the return pipe 9. The other stream enters the cooling wall cavity 7 through the second set of solenoid valves 19 and the inlet pipe 20. The cooling coil 8 is attached to the inner wall and achieves rapid heat conduction and cooling by being in close contact with the root area of ​​the blade teeth 18. After cooling is completed, it also returns to the water-cooled circulator 15 through the return pipe 9. During the entire operation, the control system controls the start-up and sequence of each electrical component through the electrical control box 11. It can independently control the two water-cooled branches according to the sensors or preset programs, thereby ensuring that the shredder roller 6 and the blade teeth 18 always maintain a safe working temperature under high-intensity shearing.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A paper shredder with a dual-circulation water-cooling structure, comprising a body (1), characterized in that: A paper shredder (6) is installed in the middle of the machine body (1). Below the paper shredder (6) is the shredding chamber (13). A water-cooled circulating machine (15) is set on the left side of the machine body (1). A double-circulation water-cooling structure is set on the right side of the water-cooled circulating machine (15). The double-circulation water-cooling structure consists of a wall-cooling component and a roller-cooling component. The wall-cooling component includes cooling wall cavities (7) disposed at the front and rear ends of the inner wall of the body (1), and cooling coils (8) are installed in the cooling wall cavities (7); The roller cooling component includes a cooling cylinder (17) that penetrates the shredder roller (6), and the cooling cylinder (17) extends to the outside of the machine body (1) on both sides. A water pump (14) is fixed on the right side of the water-cooled circulating machine (15), and the water pump (14) is connected to a distributor (16). The distributor (16) is equipped with two sets of solenoid valves (19). A water inlet pipe (20) is connected between the water inlet of the cooling cylinder (17), the water inlet of the cooling coil (8), and the solenoid valve (19). A return pipe (9) is connected between the water outlet of the cooling cylinder (17), the water outlet of the cooling coil (8), and the water-cooled circulator (15).

2. A paper shredder with a dual-circulation water-cooling structure according to claim 1, characterized in that: A reduction motor (10) is fixed in the middle of the right side of the outer wall of the machine body (1). The output shaft of the reduction motor (10) drives the shredder roller (6) to rotate through the transmission sprocket and the transmission belt.

3. A paper shredder with a dual-circulation water-cooling structure according to claim 2, characterized in that: Multiple sets of blades (18) are arranged at both ends of the inner wall of the body (1), and the roots of the blades (18) are welded to the wall surface where the cooling wall cavity (7) is located.

4. A paper shredder with a dual-circulation water-cooling structure according to claim 1, characterized in that: Below the shredder roller (6) is a shredding chamber (13), and at the bottom of the shredding chamber (13) is a paper scrap outlet (12), which extends at a 30° angle to the bottom of the front end of the machine body (1).

5. A paper shredder with a dual-circulation water-cooling structure according to claim 1, characterized in that: An adjustment motor (5) is fixed on the upper right side inside the machine body (1). The output shaft of the adjustment motor (5) is fixedly sleeved with a first gear (4). A second gear (3) is meshed above the first gear (4). A guide frame (2) is fixedly connected to the left side of the second gear (3).

6. A paper shredder with a dual-circulation water-cooling structure according to claim 5, characterized in that: The guide frame (2) is movably assembled inside the machine body (1), and the upper part of the guide frame (2) is the entrance of the machine body (1).

7. A paper shredder with a dual-circulation water-cooling structure according to claim 5, characterized in that: The guide frame (2) includes a set of horizontal frames and three sets of vertical plates, with the bottom of the vertical plates corresponding to the gaps on both sides of the shredder roller (6) and the blade teeth (18).

8. A paper shredder with a dual-circulation water-cooling structure according to claim 1, characterized in that: An electrical control box (11) is provided at the bottom right side of the machine body (1), and each electrical component inside the machine body (1) is electrically connected to the electrical control box (11).

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