Sorting device for recycling PET (Polyethylene Terephthalate) bottle flakes

By introducing a stirring blade and a screening plate into the PET bottle flake recycling device, and using a motor to drive the stirring blade to rotate and the screening drum to rotate, the problems of PET bottle flakes falling and being blocked and left behind are solved, achieving efficient sorting and rapid discharge, and improving the practicality and efficiency of the device.

CN223507488UActive Publication Date: 2025-11-04MAANSHAN HUBIN NONWOVEN CLOTH TECH
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Patent Information

Application Number
CN202423068179.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-04
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

In existing PET bottle flake recycling sorting devices, PET bottle flakes of different sizes block each other, resulting in low falling efficiency, and PET bottle flakes are easy to remain in the screening barrel and are difficult to remove, making them impractical.

Method used

The PET bottle flakes are sieved using a sieve drum with stirring blades. The stirring blades are driven by a motor to rotate, keeping the PET bottle flakes in motion. Gravity is used for sieving, and multiple sieve plates are combined to achieve efficient sorting. The motor-driven sieve drum rotates to quickly discharge any residue.

Benefits of technology

This improves the screening efficiency of PET bottle flakes, ensuring that the flakes fall directly into the collection box and that residues are quickly discharged, thus enhancing the practicality and efficiency of the sorting device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sorting device for recycling PET bottle flakes, which relates to the technical field of sorting devices and comprises a main plate, two fixing plates are fixed at the top end of the main plate, a first motor is arranged at one end of one of the fixing plates, and the output end of the first motor penetrates through one of the fixing plates and is fixedly provided with a screening barrel. And a second motor is arranged at one end of the screening barrel. When the device is used for sorting, the PET bottle chips are poured into the screening barrel only through an opening formed in a top cover, a stirring shaft is driven to rotate through operation of a second motor, so that stirring blades are driven to rotate, the PET bottle chips in the screening barrel are stirred to be in a moving state, and the PET bottle chips in the moving state are separated from the screening barrel through the opening formed in the top cover. According to the device, due to the arrangement of the multiple screening plates, the PET bottle chips can directly fall and be screened under the action of gravity, the multiple screening plates are arranged, and the stirring blades drive the PET bottle chips in the screening barrel to be in a dynamic state, so that the screening efficiency of the device is higher.
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Description

Technical Field

[0001] This utility model relates to the field of sorting device technology, and in particular to a sorting device for recycling PET bottle flakes. Background Technology

[0002] PET bottles are common packaging materials in daily life, used to package beverages, cooking oils, cosmetics and many other products. Due to their large usage, indiscriminate disposal will put enormous pressure on the environment. PET material has good chemical stability and physical properties. It is a thermoplastic polyester that can be recycled and reprocessed into various plastic products, such as fibers and sheets. Recycling PET bottles can effectively reduce dependence on primary resources such as petroleum and achieve resource recycling.

[0003] Currently, one existing PET bottle flake recycling sorting device is inefficient because PET bottle flakes of different sizes block each other and are difficult to fall. On the other hand, the PET bottle flakes are still inside the screening barrel after being screened by the screening plate, which is very troublesome to remove and has poor practicality. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where PET bottle flakes of different sizes block each other and are difficult to fall, resulting in very low efficiency. On the other hand, the PET bottle flakes are sieved by the sieve plate and still exist in the sieve barrel, making it very troublesome to remove them and resulting in poor practicality. Therefore, this invention proposes a sorting device for recycling PET bottle flakes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sorting device for recycling PET bottle flakes, comprising a main board, two fixing plates fixed to the top of the main board, a first motor at one end of one of the fixing plates, the output end of the first motor passing through one of the fixing plates and fixing a screening barrel, a second motor at one end of the screening barrel, the output end of the second motor passing through one side of the screening barrel and fixing a stirring shaft, multiple sets of stirring blades fixed on the outer wall of the stirring shaft, a top cover at the other end of the screening barrel, multiple screening plates fixed on the outer wall of the screening barrel, and guide pipes matching the screening plates fixed on the outer wall of the screening barrel, support plates fixed on both sides of the top of the main board below each set of guide pipes, a stud internally threaded to one of the support plates, and a limit plate fixed at one end of the stud located between the two support plates.

[0006] Preferably, a sealing block is fixed to the end of the top cover facing the screening barrel, and an inner cavity matching the sealing block is opened at the end of the screening barrel facing the top cover. A telescopic rod is installed on the inner wall of the inner cavity, and the output end of the telescopic rod is fixed to the sealing block.

[0007] Preferably, a baffle is slidably connected inside the multiple feed tubes, and a mounting plate is fixed to the top of the baffle. The mounting plate is fixed to one of the feed tubes by bolts, and a handle is fixed to one end of the baffle.

[0008] Preferably, a first bracket is fixed to the outer wall of one of the fixed plates, the first motor is installed at the end of the first bracket facing the fixed plate, and a second bracket is fixed to one end of the screening barrel, the second motor is installed at the end of the second bracket facing the screening barrel.

[0009] Preferably, the screening barrel is disposed between two fixed plates, and the screening barrel is rotatably connected to the two fixed plates.

[0010] Preferably, a rotating plate is fixed to the end of the stud away from the support plate, and a transparent observation plate is fixed inside the top cover.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] In this invention, during sorting, PET bottle flakes are simply poured into the screening barrel through the opening in the top cover. The operation of the second motor drives the stirring shaft to rotate, which in turn drives the stirring blades to rotate, stirring the PET bottle flakes in the screening barrel and keeping them in motion. The moving PET bottle flakes, due to gravity, will fall directly to be screened according to the multiple screening plates. This device, through the arrangement of multiple screening plates and the stirring blades keeping the PET bottle flakes in the screening barrel in motion, achieves higher screening efficiency. The falling PET bottle flakes will fall directly into the collection box placed in advance on the main board. The PET bottle flakes remaining in the screening barrel can be quickly discharged out of the screening barrel by the operation of the first motor, which drives the screening barrel to rotate, and by opening the top cover, further improving efficiency. Attached Figure Description

[0013] Figure 1 A perspective view of a sorting device for recycling PET bottle flakes is provided for this utility model;

[0014] Figure 2 A cross-sectional view of a sorting device for recycling PET bottle flakes is provided for this utility model;

[0015] Figure 3 This utility model provides a schematic diagram of the external structure of the feed tube of a sorting device for recycling PET bottle flakes;

[0016] Figure 4 This invention presents a schematic diagram of the external structure of the main board of a sorting device for recycling PET bottle flakes.

[0017] Legend: 1. Main board; 2. Fixing plate; 3. Screening barrel; 4. First motor; 5. First bracket; 6. Second bracket; 7. Second motor; 8. Stirring shaft; 9. Stirring blade; 10. Top cover; 11. Transparent observation plate; 12. Inner cavity; 13. Telescopic rod; 14. Sealing block; 15. Screening plate; 16. Guide pipe; 17. Baffle; 18. Mounting plate; 19. Bolt; 20. Handle; 21. Support plate; 22. Stud; 23. Rotating plate; 24. Limiting plate. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, as Figure 1-4 As shown, this utility model provides a sorting device for recycling PET bottle flakes, including a main board 1. Two fixing plates 2 are fixed to the top of the main board 1. One end of one fixing plate 2 is equipped with a first motor 4. The output end of the first motor 4 passes through one of the fixing plates 2 and is fixed with a screening barrel 3. One end of the screening barrel 3 is equipped with a second motor 7. The output end of the second motor 7 passes through one side of the screening barrel 3 and is fixed with a stirring shaft 8. Multiple sets of stirring blades 9 are fixed on the outer wall of the stirring shaft 8. The other end of the screening barrel 3 is equipped with a top cover 10. Multiple screening plates 15 are fixed on the outer wall of the screening barrel 3. A guide pipe 16 matching the screening plate 15 is fixed on the outer wall of the screening barrel 3. Support plates 21 are fixed on both sides of the top of the main board 1 below each set of guide pipes 16. A stud 22 is internally threaded to one of the support plates 21. A limit plate 24 is fixed to one end of the stud 22 located between the two support plates 21.

[0021] The overall effect of Embodiment 1 is as follows: the operation of the first motor 4 drives the screening barrel 3 to rotate. When the top cover 10 is at the top of the screening barrel 3, PET bottle flakes can be poured in by opening the top cover 10. When the top cover 10 is at the bottom of the screening barrel 3, the remaining PET bottle flakes in the screening barrel 3 can be discharged in one go by opening the top cover 10. The operation of the second motor 7 drives the stirring shaft 8 to rotate, thereby driving the stirring blades 9 to rotate, stirring the PET bottle flakes in the screening barrel 3, keeping them in motion. The PET bottle flakes in motion... PET bottle flakes, due to gravity, fall directly to be screened according to the setting of multiple screening plates 15. This device, through the setting of multiple screening plates 15 and the stirring blades 9, keeps the PET bottle flakes in the screening barrel 3 in a dynamic state, making its screening efficiency higher. The falling PET bottle flakes will fall directly into the collection box placed in advance on the main board 1. By rotating the stud 22, the user can drive the limiting plate 24 to move towards its corresponding support plate 21, which can clamp and fix the collection box placed between the support plate 21 and the limiting plate 24, preventing it from moving accidentally.

[0022] Example 2, as Figure 1-4 As shown, a sealing block 14 is fixed to the end of the top cover 10 facing the screening barrel 3. The end of the screening barrel 3 facing the top cover 10 has an inner cavity 12 that matches the sealing block 14. A telescopic rod 13 is installed on the inner wall of the inner cavity 12. The output end of the telescopic rod 13 is fixed to the sealing block 14. A baffle 17 is slidably connected inside multiple guide tubes 16. An installation plate 18 is fixed to the top of the baffle 17. The installation plate 18 is fixed to one of the guide tubes 16 by bolts 19. A handle 20 is fixed to one end of the baffle 17. A first bracket 5 is fixed to the outer wall of one of the fixed plates 2. A first motor 4 is installed at the end of the first bracket 5 facing the fixed plate 2. A second bracket 6 is fixed to one end of the screening barrel 3. A second motor 7 is installed at the end of the second bracket 6 facing the screening barrel 3. The screening barrel 3 is located between two fixed plates 2 and is rotatably connected to the two fixed plates 2. A rotating plate 23 is fixed to the end of the stud 22 away from the support plate 21. A transparent observation plate 11 is fixed inside the top cover 10.

[0023] The overall effect of Embodiment 2 is that the operation of the telescopic rod 13 can drive the sealing block 14 to move, thereby driving the top cover 10 to move, thus opening and closing the opening of the screening barrel 3. With the setting of the transparent observation plate 11, the user can directly observe the situation inside the screening barrel 3. With the setting of the sealing block 14, when the top cover 10 is closed, the gap between the top cover 10 and the screening barrel 3 can be sealed, resulting in a better sealing effect. With the setting of the baffle 17, the PET bottle flakes are prevented from falling from the guide tube 16 when being poured in.

[0024] Working principle: When the device is in use, the operation of the first motor 4 drives the screening barrel 3 to rotate. When the top cover 10 is at the top of the screening barrel 3, PET bottle flakes can be poured in by opening the top cover 10. When the top cover 10 is at the bottom of the screening barrel 3, the remaining PET bottle flakes in the screening barrel 3 can be discharged in one go by opening the top cover 10. The operation of the second motor 7 drives the stirring shaft 8 to rotate, thereby driving the stirring blades 9 to rotate, stirring the PET bottle flakes in the screening barrel 3, keeping them in motion. The PET bottle flakes in motion... Due to gravity, the PET bottle flakes fall directly to be screened according to the multiple screening plates 15. This device, through the setting of multiple screening plates 15 and the stirring blades 9, keeps the PET bottle flakes in the screening barrel 3 in a dynamic state, making its screening efficiency higher. The falling PET bottle flakes will fall directly into the collection box placed in advance on the main board 1. By rotating the stud 22, the user can drive the limiting plate 24 to move towards its corresponding support plate 21, which can clamp and fix the collection box placed between the support plate 21 and the limiting plate 24, preventing it from moving accidentally.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sorting device for recycling PET bottle flakes, comprising a main board (1), characterized in that: The main board (1) has two fixed plates (2) fixed at the top. One of the fixed plates (2) is equipped with a first motor (4) at one end. The output end of the first motor (4) passes through one of the fixed plates (2) and is fixed with a screening barrel (3). The screening barrel (3) is equipped with a second motor (7) at one end. The output end of the second motor (7) passes through one side of the screening barrel (3) and is fixed with a stirring shaft (8). Multiple sets of stirring blades (9) are fixed on the outer wall of the stirring shaft (8). The other end of the screening barrel (3) is equipped with a top cover (10). Multiple screening plates (15) are fixed on the outer wall of the screening barrel (3). A guide pipe (16) matching the screening plate (15) is fixed on the outer wall of the screening barrel (3). Support plates (21) are fixed on both sides of the top of the main board (1) below each set of guide pipes (16). A stud (22) is threaded into one of the support plates (21). A limit plate (24) is fixed at one end of the stud (22) between the two support plates (21).

2. The sorting device for recycling PET bottle flakes according to claim 1, characterized in that: A sealing block (14) is fixed to one end of the top cover (10) facing the screening barrel (3). An inner cavity (12) matching the sealing block (14) is opened at one end of the screening barrel (3) facing the top cover (10). A telescopic rod (13) is installed on the inner wall of the inner cavity (12). The output end of the telescopic rod (13) is fixed to the sealing block (14).

3. The sorting device for recycling PET bottle flakes according to claim 1, characterized in that: A baffle (17) is slidably connected inside multiple feed tubes (16). A mounting plate (18) is fixed to the top of the baffle (17). The mounting plate (18) is fixed to one of the feed tubes (16) by bolts (19). A handle (20) is fixed to one end of the baffle (17).

4. A sorting device for recycling PET bottle flakes according to claim 1, characterized in that: A first bracket (5) is fixed on the outer wall of one of the fixed plates (2), and a first motor (4) is installed on the end of the first bracket (5) facing the fixed plate (2). A second bracket (6) is fixed on one end of the screening barrel (3), and a second motor (7) is installed on the end of the second bracket (6) facing the screening barrel (3).

5. A sorting device for recycling PET bottle flakes according to claim 1, characterized in that: The screening barrel (3) is located between two fixed plates (2), and the screening barrel (3) is rotatably connected to the two fixed plates (2).

6. A sorting device for recycling PET bottle flakes according to claim 1, characterized in that: A rotating plate (23) is fixed to one end of the stud (22) away from the support plate (21), and a transparent observation plate (11) is fixed inside the top cover (10).