Plastic waste crusher for uniform crushing

By designing a plastic waste crusher that involves multiple crushing and screening processes, the problem of uneven plastic particles in existing technologies has been solved, achieving sufficient and uniform plastic crushing and improving crushing efficiency and screening effect.

WO2026097207A1PCT designated stage Publication Date: 2026-05-15CHEN JIAZHI
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CHEN JIAZHI
Filing Date
2024-11-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing plastic crushing equipment can only crush once, resulting in uneven plastic particle size and inconvenient screening.

Method used

A plastic waste crusher with uniform crushing properties was designed, comprising a casing, a pushing mechanism, a lifting mechanism, a crushing mechanism, a vibrating mechanism, and a screening screen. The uniformity of plastic particles is achieved through multiple crushing and screening processes. The vibrating mechanism and the lifting mechanism are used to re-crush unqualified particles, and the pushing mechanism is combined to achieve multiple cycles of crushing.

Benefits of technology

This achieves more thorough plastic crushing, resulting in more uniform particle size and improved crushing efficiency and screening effect.

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Abstract

A plastic waste crusher for uniform crushing, comprising a machine box (1), a transfer material platform (2), a pushing mechanism (3), a lifting mechanism (4), a crushing mechanism (5), a vibration mechanism (6), a discharge door (7), and a screening mesh (8). A feed hopper (101) is arranged at the top of the machine box (1), and a discharge port (102) is arranged at the lower end of the machine box (1). The transfer material platform (2) is arranged on each of the left and right sides of the feed hopper (101) and the transfer material platform (2) is fixed to the top of the machine box (1). The pushing mechanism (3) is installed on each of the left and right sides of the machine box (1), with each pushing mechanism (3) facing the transfer material platform (2). The machine box (1) is provided with the crushing mechanism (5), and the screening mesh (8) is fixed below the crushing mechanism (5) inside the machine box (1), the middle of the screening mesh (8) is higher than its two sides. The vibration mechanism (6) is arranged directly below the screening mesh (8), and the lifting mechanism (4) is mounted on the machine box (1) and extends to both the left and right sides of the screening mesh (8). The disclosed crusher can crush plastics multiple times, achieving more thorough crushing, facilitating plastic screening, and producing plastic particles of more uniform size.
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Description

A plastic waste crusher that produces uniformly crushed materials. Technical Field

[0001] This utility model relates to the field of waste plastic crushing technology, and in particular to a plastic waste crusher that can crush materials evenly. Background Technology

[0002] When recycling waste plastics, the plastics must first be crushed. Existing crushing devices often only crush the plastic once, resulting in insufficient crushing and uneven particle size. Therefore, there is an urgent need to develop a plastic waste crusher that can crush plastics multiple times, achieve more thorough crushing, facilitate plastic screening, and produce more uniformly sized plastic particles. This would overcome the shortcomings of current applications and meet current needs.

[0003] Utility Model Content

[0004] The purpose of this invention is to provide a plastic waste crusher that can crush materials evenly, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic waste crusher for uniform crushing includes a casing, a transfer platform, a pushing mechanism, a lifting mechanism, a crushing mechanism, a vibrating mechanism, a discharge gate, and a screening screen. A feed hopper is located at the top of the casing, and a discharge port is located at the bottom. A transfer platform is located on each side of the feed hopper, and the transfer platforms are fixed to the top of the casing. A pushing mechanism is installed on each side of the casing, with each pushing mechanism facing one of the transfer platforms. The crushing mechanism is installed inside the casing, and a screen is located below the crushing mechanism. The screening screen is fixed inside the casing. The screening screen is higher in the middle and lower on both sides. A vibration mechanism is set directly below the screening screen. A lifting mechanism extending to the left and right sides of the screening screen is installed on the casing. The lifting mechanism includes: a second electric telescopic rod, a connecting frame, and lifting plates. The second electric telescopic rod is fixed to the outside of the casing. There are two lifting plates, which are located on the left and right sides of the screening screen, respectively. The telescopic end of the second electric telescopic rod is fixed to the connecting frame, and the bottom of the connecting frame is fixed to the lifting plates.

[0007] Preferably, the pushing mechanism includes a first electric telescopic rod and a pushing plate, wherein the first electric telescopic rod is fixed to the chassis, and the telescopic end of the first electric telescopic rod is fixed to the pushing plate.

[0008] Preferably, the crushing mechanism includes a first motor, a crushing roller, and gears. There are two crushing rollers, which are rotatably connected to the housing. Each crushing roller is equipped with a gear, and the two gears mesh with each other. The first motor is fixed to the outside of the housing, and the output shaft of the first motor is fixed to the crushing roller.

[0009] Preferably, the vibration mechanism includes a second motor, a transmission shaft, and an eccentric cam. The second motor is fixed to the outside of the housing, the transmission shaft is rotatably connected to the inside of the housing, the output shaft of the second motor is fixed to the transmission shaft, and a plurality of eccentric cams are fixed on the transmission shaft. The eccentric cams are located directly below the screening screen.

[0010] Preferably, the machine housing is equipped with a discharge door for blocking the discharge port, and the discharge door is rotatably connected to the machine housing via a hinge.

[0011] The beneficial effects of this utility model are as follows: When using this uniformly crushing plastic waste crusher, plastic is added from the feed hopper and crushed by the crushing mechanism. The crushed plastic falls onto the screening screen. A second motor drives the transmission shaft and eccentric cam to rotate, vibrating the screening screen. Under the vibration, the plastic on the screening screen slides to both sides. Plastic of acceptable size passes through the screening screen and falls down, while unacceptable plastic eventually slides onto the lifting plate. After one crushing cycle, a second electric telescopic rod drives the transfer frame and lifting plate to move upwards, lifting the unacceptable plastic to the transfer platform. Then, a pushing mechanism pushes the plastic on the lifting plate onto the transfer platform. The second electric telescopic rod then drives the transfer frame and lifting plate down back to the screening screen. The pushing mechanism then pushes the plastic on the transfer platform back into the feed hopper, where it falls and is crushed again by the crushing mechanism. This process is repeated multiple times, resulting in more thorough crushing. The screening by the screening screen ensures that the crushed plastic particles are more uniform in size. In summary, this invention can pulverize plastics multiple times, resulting in more thorough pulverization, convenient plastic sieving, and more uniform plastic particle size after pulverization. Attached Figure Description

[0012] Figure 1 is a three-dimensional structural schematic diagram of this utility model.

[0013] Figure 2 is a three-dimensional structural schematic diagram of this utility model.

[0014] Figure 3 is a three-dimensional structural schematic diagram of this utility model.

[0015] Figure 4 is a schematic diagram of the usage state of this utility model.

[0016] Figure 5 is an internal sectional view of the chassis in this utility model.

[0017] Figure 6 is a partial structural schematic diagram of this utility model.

[0018] Figure 7 is a partial structural schematic diagram of this utility model.

[0019] Figure 8 is a partial structural schematic diagram of this utility model.

[0020] Figure 9 is a partial structural schematic diagram of this utility model.

[0021] Legend: 1. Chassis; 101. Feed hopper; 102. Discharge port; 2. Transfer platform; 3. Pushing mechanism; 301. First electric telescopic rod; 302. Pushing plate; 4. Lifting mechanism; 401. Second electric telescopic rod; 402. Transfer frame; 403. Lifting plate; 5. Crushing mechanism; 501. First motor; 502. Crushing roller; 503. Gear; 6. Vibration mechanism; 601. Second motor; 602. Drive shaft; 603. Eccentric cam; 7. Discharge gate; 8. Screening screen. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Referring to Figures 1 to 9, in this embodiment of the present invention, a uniformly crushing plastic waste crusher includes a casing 1, a transfer platform 2, a pushing mechanism 3, a lifting mechanism 4, a crushing mechanism 5, a vibrating mechanism 6, a discharge gate 7, and a screening screen 8. A feed hopper 101 is provided at the top of the casing 1, and a discharge port 102 is provided at the lower end of the casing 1. The discharge gate 7, used to block the discharge port 102, is installed on the casing 1. The discharge gate 7 is rotatably connected to the casing 1 via a hinge. A transfer platform 2 is provided on both the left and right sides of the feed hopper 101. The transfer platform 2 is fixed to the top of the casing 1. The left side of the casing 1... A pushing mechanism 3 is installed on each of the right sides, and each pushing mechanism 3 faces a transfer platform 2. The crushing mechanism 5 is installed inside the casing 1. The screening screen 8 is fixed below the crushing mechanism 5 inside the casing 1. The screening screen 8 is higher in the middle and lower on both sides so that the material on the screening screen 8 can slide to both sides. A vibration mechanism 6 is set directly below the screening screen 8. Lifting mechanisms 4 extending to the left and right sides of the screening screen 8 are installed on the casing 1. The lifting mechanism 4 includes: a second electric telescopic rod 401, a transfer frame 402 and a lifting plate 403. The second electric telescopic rod 401 is fixed to the outside of the casing 1. There are two lifting plates 403, located on the left and right sides of the screening screen 8, respectively. The telescopic end of the second electric telescopic rod 401 is fixed to the adapter frame 402, and the bottom of the adapter frame 402 is fixed to the lifting plate 403. In use, plastic is added from the feed hopper 101 and crushed by the crushing mechanism 5. The crushed plastic falls onto the screening screen 8, and the vibration mechanism 6 vibrates the screening screen 8. Under the vibration, the plastic on the screening screen 8 slides to both sides. Plastic of the correct size passes through the screening screen 8 and falls down, while unqualified plastic eventually slides onto the lifting plate 403. After one crushing cycle, the second electric telescopic rod 401 drives the transfer frame 402 and the lifting plate 403 to move upward, so that the lifting plate 403 lifts the unqualified plastic to the transfer platform 2. Then, the pushing mechanism 3 pushes the plastic on the lifting plate 403 onto the transfer platform 2. Then, the second electric telescopic rod 401 drives the transfer frame 402 and the lifting plate 403 to move downward back to the screening screen 8. Then, the pushing mechanism 3 pushes the plastic on the transfer platform 2 into the feed hopper 101 and falls down to be crushed by the crushing mechanism 5. This process is repeated many times to make the crushing more thorough. The screening by the screening screen 8 makes the crushed plastic particles more uniform in size.

[0025] The pushing mechanism 3 includes a first electric telescopic rod 301 and a pushing plate 302. The first electric telescopic rod 301 is fixed on the housing 1. The telescopic end of the first electric telescopic rod 301 is fixed to the pushing plate 302. In use, the first electric telescopic rod 301 drives the pushing plate 302 to move, and the pushing plate 302 pushes the plastic.

[0026] The crushing mechanism 5 includes a first motor 501, a crushing roller 502, and a gear 503. There are two crushing rollers 502, which are rotatably connected to the housing 1. Each crushing roller 502 is equipped with a gear 503, and the two gears 503 mesh with each other. The first motor 501 is fixed to the outside of the housing 1, and the output shaft of the first motor 501 is fixed to the crushing roller 502. In use, the first motor 501 drives the crushing roller 502 to rotate, and the two crushing rollers 502 cooperate to crush the plastic.

[0027] The vibration mechanism 6 includes a second motor 601, a transmission shaft 602, and an eccentric cam 603. The second motor 601 is fixed to the outside of the housing 1, and the transmission shaft 602 is rotatably connected inside the housing 1. The output shaft of the second motor 601 is fixed to the transmission shaft 602. Multiple eccentric cams 603 are fixed on the transmission shaft 602. The eccentric cams 603 are located directly below the screening screen 8. In use, the second motor 601 drives the transmission shaft 602 and the eccentric cams 603 to rotate, and the eccentric cams 603 vibrate the screening screen 8, causing the plastic on the screening screen 8 to slide to both sides.

[0028] Working Principle: This uniformly crushing plastic waste crusher works by feeding plastic into the hopper 101. The crushing mechanism 5 crushes the plastic, which then falls onto the screening screen 8. The second motor 601 drives the transmission shaft 602 and eccentric cam 603 to rotate, vibrating the screening screen 8. This vibration causes the plastic on the screen 8 to slide to both sides. Plastic of acceptable size passes through the screen and falls, while unacceptable plastic slides onto the lifting plate 403. After one crushing cycle, the second electric telescopic rod 401 moves the transfer frame 402 and the lifting plate 403 upwards, lifting the unacceptable plastic to the transfer platform 2. Then, the pushing mechanism 3 pushes the plastic from the lifting plate 403 onto the transfer platform 2. Finally, the second electric telescopic rod 401... The transfer frame 402 and the lifting plate 403 are moved down back to the screening screen 8. Then, the pushing mechanism 3 pushes the plastic on the transfer platform 2 into the feeding hopper 101 and then crushes it by the crushing mechanism 5. This process is repeated many times to make the crushing more thorough. The screening by the screening screen 8 makes the crushed plastic particles more uniform in size.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic waste crusher for uniform crushing, characterized in that, The system includes a chassis (1), a transfer platform (2), a pushing mechanism (3), a lifting mechanism (4), a crushing mechanism (5), a vibration mechanism (6), a discharge gate (7), and a screening screen (8). A feed hopper (101) is located at the top of the chassis (1), and a discharge port (102) is located at the bottom of the chassis (1). A transfer platform (2) is located on each of the left and right sides of the feed hopper (101), and the transfer platform (2) is fixed to the top of the chassis (1). A pushing mechanism (3) is installed on each of the left and right sides of the chassis (1), with each pushing mechanism (3) facing a transfer platform (2). The crushing mechanism (5) is installed inside the chassis (1), and a [missing information - likely a device or structure] is fixed below the crushing mechanism (5) inside the chassis (1). The screening mesh (8) is higher in the middle and lower on both sides. A vibration mechanism (6) is provided directly below the screening mesh (8). A lifting mechanism (4) extending to the left and right sides of the screening mesh (8) is installed on the machine box (1). The lifting mechanism (4) includes: a second electric telescopic rod (401), a transfer frame (402) and a lifting plate (403). The second electric telescopic rod (401) is fixed to the outside of the machine box (1). There are two lifting plates (403). The two lifting plates (403) are located on the left and right sides of the screening mesh (8) respectively. The telescopic end of the second electric telescopic rod (401) is fixed to the transfer frame (402). The bottom of the transfer frame (402) is fixed to the lifting plate (403).

2. The plastic waste crusher with uniform crushing as described in claim 1, characterized in that, The pushing mechanism (3) includes: a first electric telescopic rod (301) and a pushing plate (302). The first electric telescopic rod (301) is fixed on the housing (1), and the telescopic end of the first electric telescopic rod (301) is fixed to the pushing plate (302).

3. The plastic waste crusher with uniform crushing as described in claim 1, characterized in that, The crushing mechanism (5) includes: a first motor (501), a crushing roller (502), and a gear (503). There are two crushing rollers (502). The crushing rollers (502) are rotatably connected to the housing (1). Each crushing roller (502) is equipped with a gear (503). The two gears (503) mesh with each other. The first motor (501) is fixed to the outside of the housing (1). The output shaft of the first motor (501) is fixed to the crushing roller (502).

4. The plastic waste crusher with uniform crushing as described in claim 1, characterized in that, The vibration mechanism (6) includes a second motor (601), a transmission shaft (602), and an eccentric cam (603). The second motor (601) is fixed to the outside of the housing (1), and the transmission shaft (602) is rotatably connected to the housing (1). The output shaft of the second motor (601) is fixed to the transmission shaft (602). Multiple eccentric cams (603) are fixed on the transmission shaft (602), and the eccentric cams (603) are located directly below the screening screen (8).

5. The plastic waste crusher with uniform crushing as described in claim 1, characterized in that, The unloading door (7) for blocking the discharge port (102) is installed on the chassis (1), and the unloading door (7) is rotatably connected to the chassis (1) by a hinge.