A waste paper shredder for carton processing
By introducing a flattening and screening mechanism into the waste paper shredder, the transportation problems caused by the rebound of waste cardboard boxes are solved, the shredding efficiency and quality are improved, and automated processing is achieved.
Patent Information
- Application Number
- CN202521864193.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-01
AI Technical Summary
Waste cardboard boxes sometimes spring back during transport to the shredder, requiring them to be flattened again, which is time-consuming and labor-intensive, reducing the shredder's efficiency.
A waste paper shredder for cardboard box processing was designed, comprising a flattening mechanism and a screening mechanism. The flattening plate is driven by a hydraulic cylinder and an adjusting cylinder to flatten the rebounding waste cardboard boxes and directly enter the shredding box. The shredding is carried out by a filter plate driven by an eccentric rod and a spring, thus avoiding re-transportation.
It improves the operating efficiency of the shredder, reduces manual operation, ensures shredding quality, and can effectively collect incompletely shredded waste cardboard boxes for secondary shredding.
Smart Images

Figure CN224673444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box processing technology, specifically a waste paper shredder for cardboard box processing. Background Technology
[0002] Cardboard boxes, as a widely used packaging material, play an important role in the transportation and storage of goods. With the booming development of the e-commerce industry and the increasingly frequent circulation of goods, the use of cardboard boxes has increased dramatically. At the same time, the amount of waste cardboard boxes generated is also enormous. Recycling and reusing these waste cardboard boxes not only helps to save resources and reduce production costs, but also reduces the pressure on the environment.
[0003] Recycling and reusing waste cardboard boxes requires crushing them. Before crushing, the waste cardboard boxes are flattened. However, during the transportation of the flattened boxes to the crusher, they experience vibration, collision, compression, and friction. Under these external forces, the paper fiber structure of the cardboard boxes causes some of them to spring back. Transporting these springbacked boxes back for re-flattening is time-consuming and labor-intensive, significantly reducing the efficiency of the crusher. Utility Model Content
[0004] The purpose of this utility model is to provide a waste paper shredder for cardboard box processing, so as to solve the problem mentioned in the background art that waste cardboard boxes will rebound during the process of transporting them to the shredder, and it is very time-consuming and laborious to transport the rebounded waste cardboard boxes back and flatten them again, which greatly reduces the working efficiency of the shredder.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste paper shredder for cardboard box processing, comprising a shredding box, a feeding funnel fixedly connected to the surface of the shredding box, a discharge pipe fixedly connected to the bottom of the shredding box, a controller provided on the surface of the shredding box, a crushing roller provided inside the shredding box, a flattening mechanism provided on the top of the shredding box, the flattening mechanism comprising a support frame, the support frame fixedly connected to the surface of the shredding box, an anti-pressure pad fixedly connected to the surface of the support frame, a tilting plate rotatably connected to one side of the feeding funnel, an adjusting cylinder rotatably connected to the surface of the support frame, the piston end of the adjusting cylinder rotatably connected to the bottom of the tilting plate, a fixing rod fixedly connected to the surface of the shredding box, a hydraulic cylinder fixedly connected to the surface of the fixing rod, a flattening plate fixedly connected to the piston rod of the hydraulic cylinder, and a screening mechanism provided inside the shredding box.
[0006] Preferably, the screening mechanism includes a support plate, which is fixedly connected to the inside of the crushing box. A spring is fixedly connected to the surface of the support plate, and a filter plate is fixedly connected to the surface of the spring. A motor is fixedly connected to the surface of the crushing box, and a rotating rod is fixedly connected to the output shaft of the motor. An eccentric rod is fixedly connected to the surface of the rotating rod, and a waste pipe is fixedly connected to one side of the crushing box.
[0007] Preferably, the adjusting cylinder pushes the tilting plate to rotate on one side of the feed funnel via the piston rod. When the tilting plate is rotated to a horizontal state, one side of it contacts and connects to the upper surface of the pressure-resistant pad.
[0008] Preferably, the hydraulic cylinder drives the flattening plate to rise and fall via a piston rod, and the flattening plate is located directly above the tilting plate.
[0009] Preferably, the support plate and springs are provided in four sets, the elastic force of the springs acts on the filter plate, the filter plate slides up and down on the surface of the crushing box, and the filter plate is inclined as a whole.
[0010] Preferably, the waste pipe is inclined at an angle, and one end of the filter plate slides inside the waste pipe, with the inclination angle of the waste pipe being the same as that of the filter plate.
[0011] Preferably, the tilt angle of the rotating rod is the same as the tilt angle of the filter plate, the motor drives the rotating rod to rotate through the output shaft, the rotating rod drives the eccentric rod to rotate inside the crushing box, and there are two sets of eccentric rods.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. When encountering some springy waste cardboard boxes, this waste paper shredder can place these waste cardboard boxes separately on the tilting plate. At this time, the hydraulic cylinder on the fixed rod drives the flattening plate to descend through the piston rod. The flattening plate flattens the waste cardboard boxes on the tilting plate. The flattening plate then rises back to the highest point. At this time, the adjusting cylinder pushes the tilting plate to rotate on one side of the feed funnel through the piston rod. The tilting plate then pours the flattened waste cardboard boxes into the feed funnel, allowing them to enter the shredding chamber for shredding. There is no need to transport these waste cardboard boxes back, saving time and labor and improving the operating efficiency of the shredder.
[0013] 2. This waste paper shredder uses a filter plate to screen the waste cardboard boxes shredded by the crushing roller. The filter plate is supported by springs, and the motor drives the rotating rod to rotate through the output shaft. The rotating rod rotates and squeezes the filter plate through the eccentric rod. Combined with the elastic force of the spring, the filter plate vibrates inside the crushing box, which facilitates better screening. The filter plate pours the poorly shredded waste cardboard boxes out of the crushing box through the waste pipe, making it easy to collect these poorly shredded waste cardboard boxes for secondary crushing, thereby ensuring the crushing quality of the shredder. Attached Figure Description
[0014] Figure 1 This is a three-dimensional front view of the structure of this utility model; Figure 2 This is a side sectional perspective view of the top structure of the crushing box of this utility model; Figure 3 This is a front sectional view of the structure of this utility model; Figure 4 This is a front view schematic diagram of the feed funnel structure of this utility model; Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0015] In the diagram: 1. Crushing box; 11. Feed hopper; 12. Discharge pipe; 13. Controller; 14. Crushing roller; 2. Support frame; 21. Pressure pad; 22. Tilting plate; 23. Adjusting cylinder; 24. Fixing rod; 25. Hydraulic cylinder; 26. Flattening plate; 3. Support plate; 31. Spring; 32. Filter plate; 33. Motor; 34. Rotating rod; 35. Eccentric rod; 36. Waste pipe. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-5 One embodiment provided by this utility model: A waste paper shredder for cardboard box processing includes a shredding box 1, a feed funnel 11 fixedly connected to the surface of the shredding box 1, a discharge pipe 12 fixedly connected to the bottom of the shredding box 1, and a controller 13 installed on the surface of the shredding box 1. The controller 13 adopts an intelligent programmable design and is electrically connected to a regulating cylinder 23, a hydraulic cylinder 25, and a motor 33. Using this controller, the operator can flexibly set various operating parameters of the equipment, specifically including the rotational speed of the shredding roller 14, the extension and retraction stroke and speed of the regulating cylinder 23, the lifting speed and height of the hydraulic cylinder 25, and the motor 33. The crushing chamber 1 is equipped with crushing rollers 14, and a drive device is installed at one end of each crushing roller 14, causing the two sets of crushing rollers 14 to rotate and crush waste cardboard boxes. A flattening mechanism is installed on the top of the crushing chamber 1. The flattening mechanism includes a support frame 2, which is fixedly connected to the surface of the crushing chamber 1. An anti-compression pad 21 is fixedly connected to the surface of the support frame 2. A tilting plate 22 is rotatably connected to one side of the feed hopper 11. An adjusting cylinder 23 is rotatably connected to the surface of the support frame 2, and the piston end of the adjusting cylinder 23 is rotatably connected to the bottom of the tilting plate 22. A fixing rod 24 is fixedly connected to the surface of the crushing box 1, and a hydraulic cylinder 25 is fixedly connected to the surface of the fixing rod 24. A flattening plate 26 is fixedly connected to the piston rod of the hydraulic cylinder 25. A screening mechanism is set inside the crushing box 1. The flattening mechanism is located on one side of the feeding funnel 11. It can place some of the rebounded waste cardboard boxes onto the flattening mechanism for flattening, and then enter the crushing box 1 through the feeding funnel 11 for crushing by the crushing roller 14. This avoids the trouble of having to transport the rebounded waste cardboard boxes back, saves time and effort, and improves the operating efficiency of the crusher.
[0018] Furthermore, the screening mechanism includes a support plate 3, which is fixedly connected inside the crushing box 1. A spring 31 is fixedly connected to the surface of the support plate 3, and a filter plate 32 is fixedly connected to the surface of the spring 31. A motor 33 is fixedly connected to the surface of the crushing box 1, and a rotating rod 34 is fixedly connected to the output shaft of the motor 33. An eccentric rod 35 is fixedly connected to the surface of the rotating rod 34. A waste pipe 36 is fixedly connected to one side of the crushing box 1. The screening mechanism is located directly below the crushing roller 14. Some waste cardboard boxes may not be completely crushed. The screening mechanism can pour out the thoroughly crushed waste cardboard boxes from the inside of the crushing box 1, making it convenient to collect these poorly crushed waste cardboard boxes for secondary crushing, thereby ensuring the crushing quality of the crusher.
[0019] Furthermore, the adjusting cylinder 23 pushes the tilting plate 22 to rotate on one side of the feeding funnel 11 via the piston rod. When the tilting plate 22 rotates to a horizontal position, one side of it contacts the upper surface of the pressure-resistant pad 21. The pressure-resistant pad 21 is made of rubber and has good buffering performance and pressure resistance. When the tilting plate 22 rotates to a horizontal position and contacts the pressure-resistant pad 21, the pressure-resistant pad 21 can effectively buffer the impact force generated by the tilting plate 22, which plays a role in protecting the support frame 2 and the tilting plate 22, helping to extend their service life. At the same time, it can also reduce the noise and vibration generated during equipment operation. The support frame 2 supports one end of the tilting plate 22. The side of the tilting plate 22 closest to the feeding funnel 11 is unobstructed, and baffles are provided in the other three directions, which facilitates the flattening of waste cardboard boxes on the tilting plate 22. The tilting plate 22 can tilt the waste cardboard boxes onto the feeding funnel 11 by rotating, without manual operation, ensuring safety during use.
[0020] Furthermore, the hydraulic cylinder 25 drives the flattening plate 26 to rise and fall via the piston rod. The flattening plate 26 is located directly above the tilting plate 22. When the flattening plate 26 falls to the surface of the tilting plate 22, it flattens the waste cardboard boxes on the surface of the tilting plate 22. When the flattening plate 26 rises to the highest point, it will not affect the rotation of the tilting plate 22 on one side of the feed funnel 11.
[0021] Furthermore, four sets of support plates 3 and springs 31 are provided. The elastic force of springs 31 acts on filter plates 32. Filter plates 32 slide and rise on the surface of crushing box 1. Filter plates 32 are tilted as a whole. Filter plates 32 screen the crushed waste cardboard boxes. The crushed waste cardboard boxes will pass over filter plates 32.
[0022] Furthermore, the waste pipe 36 is inclined at an angle, and one end of the filter plate 32 slides inside the waste pipe 36. The inclination angle of the waste pipe 36 is the same as that of the filter plate 32. The poorly crushed waste cardboard boxes slide along the inclination angle of the filter plate 32 and are discharged through the waste pipe 36. A material collection device can be set on one side of the waste pipe 36.
[0023] Furthermore, the tilt angle of the rotating rod 34 is the same as that of the filter plate 32. The motor 33 drives the rotating rod 34 to rotate through the output shaft. The rotating rod 34 drives the eccentric rod 35 to rotate inside the crushing box 1. There are two sets of eccentric rods 35. The eccentric rods 35 continuously push the filter plate 32 up and down by rotating, so that the filter plate 32 vibrates inside the crushing box 1, thereby facilitating better screening of the material on the filter plate 32.
[0024] Working principle: When encountering some springy waste cardboard boxes, these waste cardboard boxes can be placed separately on the tilting plate 22. At this time, the hydraulic cylinder 25 drives the flattening plate 26 to descend through the piston rod on the fixed rod 24. The flattening plate 26 flattens the waste cardboard boxes on the tilting plate 22. The flattening plate 26 then rises back to the highest point. At this time, the adjusting cylinder 23 pushes the tilting plate 22 to rotate on one side of the feeding funnel 11 through the piston rod. The tilting plate 22 then pours the flattened waste cardboard boxes into the feeding funnel 11, so that they enter the crushing box 1 for crushing. There is no need to transport these waste cardboard boxes back, saving time and effort and improving the working efficiency of the crusher.
[0025] The waste cardboard boxes crushed by the crushing roller 14 are screened by the filter plate 32. The filter plate 32 is supported by the spring 31, and the motor 33 drives the rotating rod 34 to rotate through the output shaft. The rotating rod 34 rotates and squeezes the filter plate 32 through the eccentric rod 35. Combined with the elastic force of the spring 31, the filter plate 32 vibrates inside the crushing box 1, which facilitates better screening by the filter plate 32. The filter plate 32 pours the waste cardboard boxes with poor crushing quality out of the crushing box 1 through the waste pipe 36, which is convenient for collecting these waste cardboard boxes with poor crushing quality for secondary crushing, thereby ensuring the crushing quality of the crusher.
[0026] 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 waste paper shredder for cardboard box processing, characterized in that: The system includes a crushing box (1), a feed funnel (11) fixedly connected to the surface of the crushing box (1), a discharge pipe (12) fixedly connected to the bottom of the crushing box (1), a controller (13) provided on the surface of the crushing box (1), a crushing roller (14) provided inside the crushing box (1), and a flattening mechanism provided on the top of the crushing box (1). The flattening mechanism includes a support frame (2), which is fixedly connected to the surface of the crushing box (1). An anti-compression pad is fixedly connected to the surface of the support frame (2). 21), a tilting plate (22) is rotatably connected to one side of the feed hopper (11), an adjusting cylinder (23) is rotatably connected to the surface of the support frame (2), the piston end of the adjusting cylinder (23) is rotatably connected to the bottom of the tilting plate (22), a fixing rod (24) is fixedly connected to the surface of the crushing box (1), a hydraulic cylinder (25) is fixedly connected to the surface of the fixing rod (24), a flattening plate (26) is fixedly connected to the piston rod of the hydraulic cylinder (25), and a screening mechanism is provided inside the crushing box (1).
2. The waste paper shredder for cardboard box processing according to claim 1, characterized in that: The screening mechanism includes a support plate (3), which is fixedly connected to the inside of the crushing box (1). A spring (31) is fixedly connected to the surface of the support plate (3), and a filter plate (32) is fixedly connected to the surface of the spring (31). A motor (33) is fixedly connected to the surface of the crushing box (1). A rotating rod (34) is fixedly connected to the output shaft of the motor (33). An eccentric rod (35) is fixedly connected to the surface of the rotating rod (34). A waste pipe (36) is fixedly connected to one side of the crushing box (1).
3. The waste paper shredder for cardboard box processing according to claim 1, characterized in that: The regulating cylinder (23) pushes the tilting plate (22) to rotate on one side of the feed funnel (11) through the piston rod. When the tilting plate (22) is rotated to a horizontal state, one side of it is in contact with the upper surface of the pressure pad (21).
4. The waste paper shredder for cardboard box processing according to claim 1, characterized in that: The hydraulic cylinder (25) drives the flattening plate (26) to rise and fall via the piston rod, and the flattening plate (26) passes directly above the tilting plate (22).
5. A waste paper shredder for cardboard box processing according to claim 2, characterized in that: The support plate (3) and spring (31) are provided in four sets. The elastic force of the spring (31) acts on the filter plate (32). The filter plate (32) slides and rises and falls on the surface of the crushing box (1). The filter plate (32) is tilted as a whole.
6. A waste paper shredder for cardboard box processing according to claim 2, characterized in that: The waste pipe (36) is inclined at an angle, and one end of the filter plate (32) slides inside the waste pipe (36). The inclination angle of the waste pipe (36) is the same as that of the filter plate (32).
7. A waste paper shredder for cardboard box processing according to claim 2, characterized in that: The tilt angle of the rotating rod (34) is the same as the tilt angle of the filter plate (32). The motor (33) drives the rotating rod (34) to rotate through the output shaft. The rotating rod (34) drives the eccentric rod (35) to rotate inside the crushing box (1). There are two sets of eccentric rods (35).