A pet recycling cleaning device
Patent Information
- Application Number
- CN202522561347.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-29
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-29
AI Technical Summary
PET bottle flakes float on the water surface during the washing process due to their light weight, resulting in incomplete cleaning, affecting the quality of recycled products, and leaving a lot of water residue after washing, which wastes water resources.
A PET recycling and cleaning device was designed, comprising a cleaning tank, a stirring shaft, a filter screen, and a cylinder system. The device cleans the PET flakes by pressing them together with a mesh plate, stirring the water to contact the PET flakes with the stirring blades, removing moisture by vibrating the filter screen, and recycling the cleaning water by a water pump.
It improves the cleaning effect, ensures that the bottle flakes are thoroughly cleaned and reduces moisture residue, improves drying efficiency, and saves water resources.
Smart Images

Figure CN224926620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PET recycling technology, and more specifically, to a PET recycling and cleaning device. Background Technology
[0002] PET recycling refers to the process of collecting, sorting, cleaning, and regenerating polyethylene terephthalate (PET) materials to make them usable raw materials or products again. PET is one of the most widely used thermoplastic polyesters globally, commonly found in beverage bottles, food packaging, and synthetic fibers (such as polyester).
[0003] During the recycling process, PET bottles are crushed, and then the PET bottle flakes are washed, collected, melted, and recycled. However, during the washing process, because the PET bottle flakes are relatively light, they float on the water surface, resulting in incomplete washing and affecting the quality of the recycled products. In addition, a lot of water remains on the PET bottle flakes after washing, which is not only not conducive to drying but also wastes water resources. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a PET recycling and cleaning device to solve the technical problem mentioned in the background art that PET bottle flakes are light and will float on the water surface during cleaning, resulting in incomplete cleaning and affecting the quality of recycled products.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A PET recycling and cleaning device includes a cleaning tank with four sets of support legs on the lower outer side. A discharge port is connected to the right side of the bottom of the cleaning tank, and a discharge plate is rotatably sealed at the discharge port. Fixed seats are provided on the inner ends of the two sets of support legs on the right side and on the left front and left rear sides of the bottom of the discharge plate. A cylinder is rotatably mounted on each of the two sets of fixed seats on the front and two sets on the rear. A bracket is provided at the rear end of the cleaning tank, and a cylinder is mounted on the top of the bracket. A mesh pressure plate is provided through the output end of the cylinder. Two sets of stirring shafts are provided at the bottom of the cleaning tank. A receiving box is located at the lower right of the cleaning tank, with four sets of casters at the bottom and a U-shaped baffle at the top. A filter screen is movably installed inside the receiving box.
[0009] The present invention is further configured such that a square sliding groove is provided inside the receiving box, the filter screen slides within the square sliding groove, a first rod is provided at the bottom of each of the four corners of the square sliding groove, a second rod is provided at each of the four corners of the bottom of the filter screen, a sliding groove is provided at the top of each of the four sets of first rods, the four sets of second rods are slidably connected to the four sets of sliding grooves, and a spring is fitted on the outer side of each of the four sets of second rods. A motor is provided on the lower right side of the square sliding groove, and a cam is provided at the output end of the motor. The cam corresponds to the position of the filter screen. When it is necessary to drain the bottle flakes on the filter screen, the motor is turned on, the motor drives the cam to rotate, the cam drives the filter screen to vibrate, the four sets of second rods slide on the four sets of first rods, and the four sets of springs deform elastically, which can drive the filter screen to vibrate, thereby shaking out excess water on the bottle flakes as much as possible and improving the subsequent drying efficiency.
[0010] The present invention is further configured such that each of the two sets of stirring shafts is equipped with multiple sets of stirring blades, and each of the bottom ends of the cleaning tank is equipped with two sets of motors. The output ends of the two sets of motors are connected to the bottom ends of the two sets of stirring shafts. When the bottle flakes are pressed into the water in the cleaning tank, by turning on the two sets of motors, the two sets of motors drive the multiple sets of stirring blades to rotate through the two sets of stirring shafts. The multiple sets of stirring blades agitate the water and bottle flakes in the cleaning tank, thereby ensuring that the water and bottle flakes come into full contact for cleaning and improving the cleaning effect.
[0011] The present invention is further configured such that a water pump is provided at the rear end of the receiving box, the input end of the water pump is connected to the lower side of the rear end of the receiving box, and a flexible hose is provided at the output end of the water pump. An installation hole is provided at the upper side of the rear end of the cleaning box, and the flexible hose is inserted into the installation hole. When the bottle flakes and water are introduced into the receiving box, the water pump is turned on, and the water in the receiving box is introduced into the cleaning box through the water pump and the flexible hose, so that the water in the receiving box can be promptly returned to the cleaning box for reuse.
[0012] The present invention is further configured such that a ramp plate is provided at the bottom of the cleaning tank, and the two sets of stirring shafts are rotatably connected to the ramp plate. By providing the ramp plate, it is easier for the bottle flakes to be guided into the receiving box along the ramp plate.
[0013] The present invention is further configured such that a limiting frame is provided on the upper side of the cleaning tank, and the limiting frame corresponds to the position of the mesh pressing plate. By setting the limiting frame, when the mesh pressing plate presses the bottle flakes into the water in the cleaning tank, the limiting frame limits the mesh pressing plate to prevent the mesh pressing plate from contacting the stirring blade and being damaged.
[0014] The present invention is further provided with a protective cover on the outside of both the second motor and the first motor on the right side. By providing the protective cover, the second motor and the first motor on the right side can be protected from water.
[0015] Beneficial effects
[0016] Compared with the prior art, the present invention provides a PET recycling and cleaning device, which has the following beneficial effects:
[0017] 1. A discharge plate is rotatably sealed at the outlet of the cleaning tank. Cylinder 1 is rotatably mounted on each of the two sets of fixed seats on the front and two sets on the rear. Cylinder 2 is mounted at the top of the support. A mesh pressure plate is mounted through the output end of cylinder 2 at the top of the support. Two sets of stirring shafts are mounted at the bottom of the cleaning tank. A U-shaped baffle is mounted at the top of the receiving box. A filter screen is movably mounted inside the receiving box. Bottle flakes are placed in the water in the cleaning tank. Then, cylinder 2 is opened, causing the mesh pressure plate to move downwards and extend into the cleaning tank. The device moves downwards, and the mesh pressure plate presses the bottle flakes into the water for cleaning. After the bottle flakes are cleaned, two sets of cylinders are opened, which in turn open two sets of discharge plates. The water and bottle flakes in the cleaning tank are then introduced into the receiving tank through the outlet of the cleaning tank. The water is introduced into the bottom of the receiving tank through the filter screen, and the bottle flakes are collected on the filter screen. Then, the receiving tank is pushed to rotate the four sets of universal wheels, which move the receiving tank to the designated position. The bottle flakes on the filter screen are then removed, making it easier to press the bottle flakes into the water in the cleaning tank for cleaning, thus improving the cleaning effect.
[0018] 2. The filter screen slides within the square chute of the receiving box. A first rod is provided at each of the four bottom corners of the square chute, and a second rod is provided at each of the four bottom corners of the filter screen. The four sets of second rods are slidably connected to the four sets of first rods in the chute. Springs are fitted onto the outer sides of each of the four sets of second rods. A cam is provided at the output end of the motor. When it is necessary to drain the bottle flakes on the filter screen, the motor is turned on, causing the cam to rotate. The cam then causes the filter screen to vibrate. The four sets of second rods slide on the four sets of first rods, and the four sets of springs deform due to elasticity, causing the filter screen to vibrate. This effectively shakes out excess water from the bottle flakes, improving subsequent drying efficiency.
[0019] 3. Both sets of stirring shafts are equipped with multiple sets of stirring blades. The output ends of the two sets of motors are connected to the bottom ends of the two sets of stirring shafts. When the bottle flakes are pressed into the water in the cleaning tank, the two sets of motors are turned on. The two sets of motors drive the multiple sets of stirring blades to rotate through the two sets of stirring shafts. The multiple sets of stirring blades agitate the water and bottle flakes in the cleaning tank, so that the water and bottle flakes can fully contact each other for cleaning, thereby improving the cleaning effect. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a PET recycling and cleaning device according to the present invention. Figure 1 ;
[0021] Figure 2This is a schematic diagram of the overall structure of a PET recycling and cleaning device according to the present invention. Figure 2 ;
[0022] Figure 3 This is a schematic diagram of the connection structure between the stirring shaft, stirring blades, and inclined plate in this utility model;
[0023] Figure 4 This is a schematic diagram of the connection structure between the first rod, the second rod, and the spring in this utility model;
[0024] Figure 5 This is a schematic diagram of the connection structure between the motor, the cam, and the protective cover in this utility model.
[0025] In the diagram: 1. Cleaning tank; 2. Support leg; 3. Discharge plate; 4. Fixed base; 5. Cylinder 1; 6. Bracket; 7. Cylinder 2; 8. Mesh pressure plate; 9. Agitator shaft; 10. Receiving box; 11. Casters; 12. U-shaped baffle; 13. Filter screen; 14. First rod; 15. Second rod; 16. Spring; 17. Motor 1; 18. Cam; 19. Agitator blade; 20. Motor 2; 21. Water pump; 22. Hose; 23. Inclined plate; 24. Limiting frame; 25. Protective cover. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figure 1-5A PET recycling and cleaning device includes a cleaning tank 1. Four sets of support legs 2 are provided on the lower outer side of the cleaning tank 1. A discharge port is connected to the right side of the bottom of the cleaning tank 1. A discharge plate 3 is rotatably sealed at the discharge port. Fixing seats 4 are provided on the inner ends of the two sets of support legs 2 on the right side and on the left front and left rear sides of the bottom of the discharge plate 3. A cylinder 5 is rotatably mounted on the two sets of front and rear fixing seats 4. A bracket 6 is provided at the rear end of the cleaning tank 1. A cylinder 5 is provided at the top of the bracket 6. A second cylinder 7 is provided, and a mesh pressure plate 8 is provided at the top of the bracket 6 through the output end of the second cylinder 7. Two sets of stirring shafts 9 are provided at the bottom of the cleaning tank 1. A receiving box 10 is provided at the lower right of the cleaning tank 1. Four sets of universal wheels 11 are provided at the bottom of the receiving box 10. A U-shaped baffle 12 is provided at the top of the receiving box 10. A filter screen 13 is movably arranged inside the receiving box 10. A limit frame 24 is provided on the upper side of the cleaning tank 1. The limit frame 24 corresponds to the position of the mesh pressure plate 8.
[0030] In this embodiment, the bottle flakes are placed in the water of the washing tank 1. Then, cylinder 7 is opened, which drives the mesh pressure plate 8 to move downwards. The mesh pressure plate 8 extends into the washing tank 1 and moves downwards, pressing the bottle flakes into the water for cleaning. After the bottle flakes are cleaned, two sets of cylinders 5 are opened, which drives two sets of discharge plates 3 to open. The water and bottle flakes in the washing tank 1 are then introduced into the receiving tank 10 through the discharge port of the washing tank 1. The water is then introduced into the receiving tank 10 through the filter screen 13. Inside the bottom of the box 10, the bottle flakes are collected on the filter screen 13. Then, the receiving box 10 is pushed to rotate the four sets of universal wheels 11, which move the receiving box 10 to the designated position. Then, the bottle flakes on the filter screen 13 are removed, so that they can be pressed into the water in the cleaning box 1 for cleaning, thereby improving the cleaning effect. By setting the limiting frame 24, when the mesh pressing plate 8 presses the bottle flakes into the water in the cleaning box 1, the limiting frame 24 limits the mesh pressing plate 8 to prevent the mesh pressing plate 8 from contacting the stirring blade 19 and being damaged.
[0031] Please see Figures 3-5 As one embodiment of the filter screen 13, the receiving box 10 of this utility model is provided with a square sliding groove, the filter screen 13 slides in the square sliding groove, a first rod 14 is provided at the bottom of each of the four corners of the square sliding groove, a second rod 15 is provided at each of the four corners of the bottom of the filter screen 13, a sliding groove is provided at the top of each of the four sets of first rods 14, the four sets of second rods 15 are slidably connected to the four sets of sliding grooves, a spring 16 is fitted on the outside of each of the four sets of second rods 15, a motor 17 is provided on the lower right side of the square sliding groove, a cam 18 is provided at the output end of the motor 17, and the cam 18 corresponds to the position of the filter screen 13;
[0032] Specifically, when it is necessary to drain the bottle flakes on the filter screen 13, the motor 17 is turned on, which drives the cam 18 to rotate. The cam 18 causes the filter screen 13 to vibrate. The four sets of second rods 15 slide on the four sets of first rods 14, and the four sets of springs 16 deform elastically, which can drive the filter screen 13 to vibrate, thereby shaking out as much excess water as possible from the bottle flakes and improving the subsequent drying efficiency.
[0033] Please see Figures 3-5 As one embodiment of the stirring shaft 9, in this utility model, both sets of stirring shafts 9 are provided with multiple sets of stirring blades 19, and the bottom of the cleaning box 1 is provided with two sets of motors 20. The output ends of the two sets of motors 20 are connected to the bottom ends of the two sets of stirring shafts 9. The outer sides of the motors 20 and the motors 17 on the right side are provided with protective covers 25.
[0034] Specifically, when the bottle flakes are pressed into the water in the cleaning tank 1, the two sets of motors 20 are turned on. The two sets of motors 20 drive multiple sets of stirring blades 19 to rotate through the two sets of stirring shafts 9. The multiple sets of stirring blades 19 stir the water and bottle flakes in the cleaning tank 1, so that the water and bottle flakes can fully contact each other for cleaning, thereby improving the cleaning effect. By setting up a protective cover 25, the right-side motors 20 and 17 can be protected from water.
[0035] Please refer to Figure 2 As a further embodiment of the receiving box 10: a water pump 21 is provided at the rear end of the receiving box 10, the input end of the water pump 21 is connected to the lower side of the rear end of the receiving box 10, a hose 22 is provided at the output end of the water pump 21, and an installation hole is provided at the upper side of the rear end of the cleaning box 1, and the hose 22 is inserted into the installation hole.
[0036] Specifically, after the bottle flakes and water are introduced into the receiving box 10, the water pump 21 is turned on, and the water in the receiving box 10 is introduced into the cleaning box 1 through the water pump 21 and the hose 22, so that the water in the receiving box 10 can be returned to the cleaning box 1 for reuse in a timely manner.
[0037] The present invention provides a ramp plate 23 at the bottom of the washing tank 1, and two sets of stirring shafts 9 are rotatably connected to the ramp plate 23. By providing the ramp plate 23, it is easier to guide the bottle flakes into the receiving box 10 along the ramp plate 23.
[0038] A filter screen can be added to the input end of the water pump 21.
[0039] In summary, when using the overall equipment:
[0040] The bottle flakes are placed in the water in the washing tank 1. Then, cylinder 2 7 is opened, which drives the mesh pressure plate 8 to move downward. The mesh pressure plate 8 extends into the washing tank 1 and moves downward, pressing the bottle flakes into the water for cleaning. After the bottle flakes are cleaned, two sets of cylinders 1 5 are opened, which drives two sets of discharge plates 3 to open. The water and bottle flakes in the washing tank 1 are introduced into the receiving box 10 through the discharge port of the washing tank 1. The water is introduced into the bottom of the receiving box 10 through the filter screen 13, and the bottle flakes are collected on the filter screen 13. Then, the receiving box 10 is pushed to make the four sets of universal wheels 11 rotate, which moves the receiving box 10 to the designated position. Then, the bottle flakes on the filter screen 13 are removed.
[0041] When it is necessary to drain the bottle flakes on the filter screen 13, the motor 17 is turned on, which drives the cam 18 to rotate. The cam 18 causes the filter screen 13 to vibrate, and the filter screen 13 drains the bottle flakes. The four sets of second rods 15 slide on the four sets of first rods 14, and the four sets of springs 16 undergo elastic deformation.
[0042] When the bottle flakes are pressed into the water in the cleaning tank 1, the two sets of motors 20 are turned on. The two sets of motors 20 drive the multiple sets of stirring blades 19 to rotate through the two sets of stirring shafts 9. The multiple sets of stirring blades 19 stir the water and bottle flakes in the cleaning tank 1, so that the water and bottle flakes can fully contact each other for cleaning.
[0043] After the flakes and water are introduced into the receiving box 10, the water pump 21 is turned on. The water in the receiving box 10 is then introduced into the cleaning box 1 through the water pump 21 and the hose 22, so that the water in the receiving box 10 can be returned to the cleaning box 1 for reuse in a timely manner.
[0044] When the mesh plate 8 presses the bottle flakes into the water in the washing tank 1, the limiting frame 24 limits the mesh plate 8.
[0045] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
[0046] In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.
Claims
1. A PET recycling and cleaning device, comprising a cleaning tank (1), characterized in that: The cleaning tank (1) has four sets of support legs (2) on the lower side of its outer end. The bottom right side of the cleaning tank (1) is connected to a discharge port. A discharge plate (3) is rotatably sealed at the discharge port. Fixed seats (4) are provided on the inner ends of the two sets of support legs (2) on the right side and on the left front and left rear sides of the bottom end of the discharge plate (3). A cylinder (5) is rotatably installed on the two sets of fixed seats (4) on the front side and the two sets of fixed seats (4) on the rear side. A bracket (6) is provided at the rear end of the cleaning tank (1). A cylinder 2 (7) is provided at the top of the support (6). The output end of the cylinder 2 (7) passes through the top of the support (6) and is provided with a mesh pressure plate (8). Two sets of stirring shafts (9) are provided at the bottom of the cleaning box (1). A receiving box (10) is provided at the lower right of the cleaning box (1). Four sets of universal wheels (11) are provided at the bottom of the receiving box (10). A U-shaped baffle (12) is provided at the top of the receiving box (10). A filter screen (13) is movably provided inside the receiving box (10).
2. The PET recycling and cleaning device according to claim 1, characterized in that: The receiving box (10) is provided with a square slide groove. The filter screen (13) slides in the square slide groove. The bottom of the four corners of the square slide groove is provided with a first rod (14). The bottom of the filter screen (13) is provided with a second rod (15). The top of the four sets of first rods (14) is provided with a slide groove. The four sets of second rods (15) are slidably connected to the four sets of slide grooves. The outer side of the four sets of second rods (15) is fitted with a spring (16). The lower right side of the square slide groove is provided with a motor (17). The output end of the motor (17) is provided with a cam (18). The cam (18) corresponds to the position of the filter screen (13).
3. The PET recycling and cleaning device according to claim 2, characterized in that: Both sets of stirring shafts (9) are equipped with multiple sets of stirring blades (19), and the bottom of the cleaning tank (1) is equipped with two sets of motors (20). The output ends of the two sets of motors (20) are connected to the bottom ends of the two sets of stirring shafts (9).
4. The PET recycling and cleaning device according to claim 1, characterized in that: A water pump (21) is provided at the rear end of the receiving box (10). The input end of the water pump (21) is connected to the lower rear end of the receiving box (10). A hose (22) is provided at the output end of the water pump (21). An installation hole is provided on the upper rear end of the cleaning box (1). The hose (22) is inserted into the installation hole.
5. A PET recycling and cleaning device according to claim 3, characterized in that: The bottom of the cleaning tank (1) is provided with a ramp plate (23), and the two sets of stirring shafts (9) are rotatably connected to the ramp plate (23).
6. The PET recycling and cleaning device according to claim 1, characterized in that: A limiting frame (24) is provided on the upper side of the cleaning tank (1), and the limiting frame (24) corresponds to the position of the mesh pressure plate (8).
7. A PET recycling and cleaning device according to claim 3, characterized in that: Both the second motor (20) and the first motor (17) on the right side are provided with protective covers (25).
