Friction device for waste plastic cleaning
By designing a friction device for waste plastics, utilizing spiral blade conveying, water spray pipe initial washing, and mixing plate agitation, the problem of low efficiency in waste plastic cleaning is solved, achieving efficient automated cleaning and quality improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIFENG ENVIRONMENTAL TECHNOLOGY (ANHUI) CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing technologies for cleaning waste plastics are simple and crude, lacking pre-cleaning steps, resulting in low cleaning efficiency and impurity accumulation, which affects the cleaning effect and recycling quality.
A friction device was designed, comprising a cleaning cylinder, a conveying cylinder, a water spray pipe, and a stirring device. The device conveys plastic through spiral blades, performs initial washing with water spray pipes, mixes the cleaning liquid with the plastic with a stirring plate, prevents accumulation with a brush, and controls the discharge with an electric push rod, thereby improving the level of automation and cleaning efficiency.
It achieves efficient and automated cleaning of waste plastics, removes surface impurities, ensures uniform and thorough cleaning, improves the quality and cleaning efficiency of recycled plastics, and reduces labor costs.
Smart Images
Figure CN224128034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic recycling technology, and in particular to a friction device for cleaning waste plastics. Background Technology
[0002] Waste plastics are plastic products and processing waste discarded in production and daily life. Their sources are wide-ranging, encompassing scraps and defective products from industrial production, waste agricultural film and water pipes from the agricultural sector, waste packaging bags and bottles from the packaging industry, and old toys and tableware from everyday life. Because plastic products come in various shapes and sizes, these waste plastics are usually quite dirty and need to be cleaned thoroughly after recycling before entering subsequent processing stages.
[0003] Currently, waste plastic washing methods are simple and crude. People often dump waste plastic into the washing tank indiscriminately, resulting in a large amount of impurities entering the washing stage without pretreatment. Because there is no initial water spraying to remove loose surface impurities during transport, the mud, dust, and other impurities carried by the waste plastic accumulate inside the washing tank, increasing the workload. Furthermore, the haphazardly poured waste plastic easily becomes tangled and piled up, affecting the sufficient contact between the washing solution and the plastic surface, reducing the washing effect. This not only increases washing time and costs but may also lead to some plastics not being thoroughly cleaned, reducing the quality of the recycled plastic.
[0004] Therefore, it is necessary to provide a friction device for cleaning waste plastics to solve the above-mentioned technical problems. Utility Model Content
[0005] This invention provides a friction device for cleaning waste plastics, which solves the problem of low cleaning efficiency caused by the lack of a pre-cleaning step for waste plastics.
[0006] To solve the above-mentioned technical problems, the present invention provides a friction device for cleaning waste plastics, comprising: a cleaning cylinder, a support plate fixedly connected to the top of the cleaning cylinder, a conveying cylinder fixedly connected to the top of the support plate, a first motor fixedly connected to one end of the conveying cylinder, a rotating shaft fixedly connected to one end of the first motor, the outer surface of the rotating shaft penetrating through the conveying cylinder and extending into the interior of the conveying cylinder, a helical blade fixedly connected to the outer surface of the rotating shaft, a semi-circular groove formed on the outside of the conveying cylinder, a water spray pipe arranged inside the semi-circular groove, a nozzle fixedly connected to the outer surface of the water spray pipe, and the nozzle... The outer surface penetrates through the conveying cylinder and extends into the interior of the conveying cylinder. A connecting column is fixedly connected to the other end of the conveying cylinder, and a circular water tank is fixedly connected to the other end of the connecting column. A water injection pipe is fixedly connected to the top of the circular water tank, and one side of the circular water tank is fixedly connected to the other end of the spray pipe. A feed hopper is provided at the top of the conveying cylinder, and a discharge hopper is provided at the bottom of the other end of the conveying cylinder. A feed square tube is fixedly connected to the top of the feed square tube, and a collection box is fixedly connected to the top of the collection box. An inclined plate is fixedly connected inside the collection box, and the outer surface of the discharge hopper penetrates through the collection box and extends into the interior of the collection box.
[0007] Preferably, a second motor is fixedly connected to the top of the cleaning cylinder, and a rotating shaft is fixedly connected to the bottom of the second motor. The outer surface of the rotating shaft penetrates through the cleaning cylinder and extends into the interior of the cleaning cylinder. A stirring plate is fixedly connected to the outer surface of the rotating shaft, and a rotating plate is fixedly connected to the outer surface of the rotating shaft. A pushing block is fixedly connected to the bottom of the rotating plate. A vertical groove is formed on the inner wall of the cleaning cylinder. A telescopic tube is fixedly connected inside the vertical groove. A spring is provided on the outside of the telescopic tube. A vertical plate is fixedly connected to the other end of the telescopic tube, and a brush is provided on the other side of the vertical plate.
[0008] Preferably, a discharge square tube is fixedly connected to the bottom of the cleaning cylinder, an electric push rod is fixedly connected to the bottom of the cleaning cylinder, a sealing plate is fixedly connected to one end of the electric push rod, the outer surface of the sealing plate penetrates through the discharge square tube and extends into the interior of the discharge square tube, and the outer surface of the sealing plate is slidably connected to the interior of the discharge square tube.
[0009] Preferably, the inner wall of the conveying cylinder is provided with a water trough, the inside of the water trough is provided with a straight groove plate, and the bottom of the conveying cylinder is fixedly connected with a drainage square pipe.
[0010] Preferably, a control panel is fixedly connected to the outside of the cleaning cylinder.
[0011] Preferably, a liquid level observation window is fixedly connected to the outside of the cleaning cylinder.
[0012] Compared with related technologies, the friction device for cleaning waste plastics provided by this utility model has the following beneficial effects:
[0013] This invention provides a friction device for cleaning waste plastics. A cleaning cylinder provides the cleaning space, and a support plate supports the conveying cylinder. A first motor drives a rotating shaft and spiral blades to automatically convey waste plastics. Water is sprayed through a spray pipe and nozzles for initial washing, and a connecting column connects to a circular water tank for water supply. Material is fed into the hopper and delivered through the discharge hopper, passing through a material collection box and an inlet square pipe to the cleaning cylinder, improving cleaning efficiency and automation. Attached Figure Description
[0014] Figure 1 A schematic diagram of a preferred embodiment of the friction device for cleaning waste plastics provided by this utility model;
[0015] Figure 2 for Figure 1 The diagram shows the internal structure.
[0016] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;
[0017] Figure 4 for Figure 1 The front sectional view shown is illustrated.
[0018] Figure 5 for Figure 4 The enlarged schematic diagram of section B is shown below;
[0019] Figure 6 for Figure 4 The enlarged schematic diagram of section C is shown below;
[0020] Figure 7 for Figure 4 The enlarged schematic diagram of part D is shown below;
[0021] Figure 8 for Figure 1 The side sectional view shown is shown below;
[0022] Figure 9 for Figure 8 The enlarged schematic diagram of part E is shown.
[0023] The following are the labels in the diagram: 1. Cleaning cylinder, 2. Support plate, 3. Conveying cylinder, 4. First motor, 5. Rotating shaft, 6. Spiral blade, 7. Semicircular trough, 8. Water spray pipe, 9. Nozzle, 10. Connecting column, 11. Circular water tank, 12. Water injection pipe, 13. Feed hopper, 14. Discharge hopper, 15. Feed square tube, 16. Material collection box, 17. Inclined plate, 18. Second motor, 19. Rotating shaft, 20. Stirring plate, 21. Rotating plate, 22. Pushing block, 23. Vertical trough, 24. Telescopic pipe, 25. Spring, 26. Vertical plate, 27. Brush, 28. Discharge square tube, 29. Electric push rod, 30. Sealing plate, 31. Water tank, 32. Straight trough plate, 33. Drainage square tube, 34. Control panel, 35. Liquid level observation window. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 ,in, Figure 1 A schematic diagram of a preferred embodiment of the friction device for cleaning waste plastics provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 The front sectional view shown is illustrated. Figure 5 for Figure 4 The enlarged schematic diagram of section B is shown below; Figure 6 for Figure 4 The enlarged schematic diagram of section C is shown below; Figure 7 for Figure 4 The enlarged schematic diagram of part D is shown below; Figure 8 for Figure 1 The side sectional view shown is shown below; Figure 9 for Figure 7The enlarged schematic diagram of part E is shown. The friction device for cleaning waste plastics includes: a cleaning cylinder 1, a support plate 2 fixedly connected to the top of the cleaning cylinder 1, a conveying cylinder 3 fixedly connected to the top of the support plate 2, a first motor 4 fixedly connected to one end of the conveying cylinder 3, a rotating shaft 5 fixedly connected to one end of the first motor 4, the outer surface of the rotating shaft 5 penetrating through the conveying cylinder 3 and extending into the interior of the conveying cylinder 3, a spiral blade 6 fixedly connected to the outer surface of the rotating shaft 5, a semi-circular groove 7 formed on the outside of the conveying cylinder 3, a water spray pipe 8 arranged inside the semi-circular groove 7, a nozzle 9 fixedly connected to the outer surface of the water spray pipe 8, and the outer surface of the nozzle 9 penetrating through the conveying cylinder 3 and extending into the interior of the conveying cylinder 3. Inside the conveying cylinder 3, a connecting column 10 is fixedly connected to the other end of the conveying cylinder 3, and a circular water tank 11 is fixedly connected to the other end of the connecting column 10. A water injection pipe 12 is fixedly connected to the top of the circular water tank 11, and one side of the circular water tank 11 is fixedly connected to the other end of the spray pipe 8. A feed hopper 13 is provided at the top of the conveying cylinder 3, and a discharge hopper 14 is provided at the bottom of the other end of the conveying cylinder 3. A feed square tube 15 is fixedly connected to the top of the washing cylinder 1, and a collection box 16 is fixedly connected to the top of the feed square tube 15. An inclined plate 17 is fixedly connected inside the collection box 16, and the outer surface of the discharge hopper 14 penetrates through the collection box 16 and extends into the interior of the collection box 16.
[0026] The washing cylinder 1 provides crucial space for cleaning waste plastics, while the support plate 2 firmly supports the conveyor cylinder 3 above, ensuring the overall structural stability of the device. One end of the conveyor cylinder 3 is connected to the first motor 4, which drives the rotating shaft 5 and the spiral blades 6 to transport the waste plastics fed from the feed hopper 13 to the other end. The water spray pipe 8 inside the semi-circular groove 7 outside the conveyor cylinder 3 is connected to the circular water tank 11. Water is injected through the water injection pipe 12 and then sprayed onto the conveying waste plastics through the nozzles 9 for initial washing, removing some impurities. The connecting column 10 connects the conveyor cylinder 3 and the circular water tank 11, ensuring a stable water supply. The waste plastics that have completed the initial washing are discharged from the discharge hopper 14, guided by the inclined plate 17 inside the collection box 16, and enter the washing cylinder 1 through the feed square pipe 15, preparing for subsequent deep washing.
[0027] A second motor 18 is fixedly connected to the top of the cleaning cylinder 1, and a rotating shaft 19 is fixedly connected to the bottom of the second motor 18. The outer surface of the rotating shaft 19 penetrates the cleaning cylinder 1 and extends into the interior of the cleaning cylinder 1. A stirring plate 20 is fixedly connected to the outer surface of the rotating shaft 19. A rotating plate 21 is fixedly connected to the outer surface of the rotating shaft 19. A pusher block 22 is fixedly connected to the bottom of the rotating plate 21. A vertical groove 23 is opened in the inner wall of the cleaning cylinder 1. A telescopic tube 24 is fixedly connected inside the vertical groove 23. A spring 25 is provided on the outside of the telescopic tube 24. A vertical plate 26 is fixedly connected to the other end of the telescopic tube 24. A brush 27 is provided on the other side of the vertical plate 26.
[0028] The second motor 18 at the top of the cleaning drum 1 provides crucial power for the cleaning operation. It drives the rotating shaft 19 to rotate within the drum 1, causing the stirring plate 20 fixed to the outer surface of the shaft 19 to rotate as well. This ensures thorough mixing and contact between the cleaning solution and the waste plastic, enhancing the cleaning effect. The rotating plate 21 on the shaft 19 and the pusher block 22 connected to the bottom push the waste plastic within the cleaning drum 1 during rotation, preventing accumulation and ensuring uniform cleaning. The telescopic tube 24 in the vertical groove 23 on the inner wall of the cleaning drum 1, under the action of the spring 25, can drive the vertical plate 26 and the brush 27 on the other side to extend moderately towards the waste plastic. When the pressure of the friction device is too high, the brush 27 can absorb some of the pressure through its flexible cushioning, preventing scratches, wear, or even cracks in the waste plastic due to excessive friction, thus ensuring the recycling quality and subsequent processing performance of the plastic.
[0029] The bottom of the cleaning cylinder 1 is fixedly connected to a discharge square tube 28, and the bottom of the cleaning cylinder 1 is fixedly connected to an electric push rod 29. One end of the electric push rod 29 is fixedly connected to a sealing plate 30. The outer surface of the sealing plate 30 penetrates through the discharge square tube 28 and extends into the interior of the discharge square tube 28. The outer surface of the sealing plate 30 is slidably connected to the interior of the discharge square tube 28.
[0030] The discharge square tube 28 at the bottom of the washing cylinder 1 serves as the channel for discharging the washed waste plastic. An electric push rod 29 is connected to the bottom of the washing cylinder 1, and a sealing plate 30 connected to one end of the push rod 29 can slide within the discharge square tube 28. The electric push rod 29 controls the sealing plate 30 by extending and retracting, thereby determining the opening and closing state of the discharge square tube 28. This allows for precise control of the timing and flow rate of the washed waste plastic discharge, facilitating the orderly collection of the washed waste plastic.
[0031] The inner wall of the conveying cylinder 3 is provided with a water trough 31, and a straight groove plate 32 is provided inside the water trough 31. A drainage square pipe 33 is fixedly connected to the bottom of the conveying cylinder 3.
[0032] The water trough 31, located on the inner wall of the conveying cylinder 3, collects the cleaning water that spills onto the cylinder wall after being sprayed from the nozzle 9, preventing water from flowing freely within the conveying cylinder 3 and affecting the conveying process. The straight trough plate 32 inside the water trough 31 effectively prevents waste materials such as waste plastics from entering the water trough 31, preventing waste from accumulating and causing blockages, and ensuring the normal water collection function of the water trough 31. The drain square pipe 33, fixedly connected to the bottom of the conveying cylinder 3, is responsible for timely draining the cleaning water collected in the water trough 31 from the conveying cylinder 3, maintaining a suitable humidity environment inside the conveying cylinder 3, and ensuring the smooth conveying and initial cleaning of waste plastics.
[0033] The cleaning cylinder 1 is externally fixedly connected to a control panel 34.
[0034] The control panel 34 outside the washing cylinder 1 is the control center. It can set the speed of the first motor 4 and the second motor 18 to control the conveying and washing and stirring intensity of waste plastics. It can also control the electric push rod 29 to open and close the discharge square tube 28 to control the discharge. It can also switch the water spray pipe 8 on and off to turn the water spray function on or off, making the device convenient, efficient and intelligent to operate.
[0035] The cleaning cylinder 1 is fixedly connected to a liquid level observation window 35.
[0036] The liquid level observation window 35 on the outside of the cleaning tank 1 allows the operator to directly observe the liquid level height of the cleaning fluid inside the cleaning tank 1.
[0037] The working principle of the friction device for cleaning waste plastics provided by this utility model is as follows: First, the operator places the collected waste plastics into the feed hopper 13. The design of the feed hopper 13 facilitates the feeding of waste plastics, allowing them to smoothly enter the conveying cylinder 3. Next, the first motor 4 is started. After the first motor 4 is powered on, its output shaft is tightly connected to the rotating shaft 5, driving the rotating shaft 5 to start rotating at high speed inside the conveying cylinder 3. The spiral blades 6 fixed on the outer surface of the rotating shaft 5 rotate together with the rotating shaft 5. Due to the special spiral shape of the spiral blades 6, during their rotation, they continuously push the waste plastics entering the conveying cylinder 3 from the feed end to the discharge end, achieving stable conveying of waste plastics inside the conveying cylinder 3. At the same time, a water spray pipe 8 is arranged in the semi-circular groove 7 outside the conveying cylinder 3. One end of the water spray pipe 8 is connected to a circular water tank 11, and the top of the circular water tank 11 is equipped with a water injection pipe 12. The operator can inject an appropriate amount of water into the water tank through the water injection pipe 12 to reserve water for the cleaning operation. Multiple nozzles 9 are evenly distributed on the water spray pipe 8. These nozzles 9 penetrate the wall of the conveying cylinder 3 and spray water into the interior of the conveying cylinder 3. As the waste plastic is propelled forward by the spiral blades 6, the water sprayed from the nozzles 9 directly impacts the surface of the waste plastic, initially washing away some loose impurities such as dust and dirt, completing the initial cleaning work. Then, the waste plastic, after initial cleaning and pushed to the other end of the conveying cylinder 3 by the spiral blades 6, will be discharged from the discharge hopper 14. The position and angle design of the discharge hopper 14 ensures that the waste plastic falls accurately into the collection box 16. An inclined plate 17 is fixed inside the collection box 16. The inclined plate 17 guides the waste plastic to slide down the inclined trajectory, pass through the feed square pipe 15, and finally smoothly enter the washing cylinder 1, thus initiating a more in-depth cleaning process and preparing for the subsequent thorough cleaning in the washing cylinder 1.
[0038] Compared with related technologies, the friction device for cleaning waste plastics provided by this utility model has the following beneficial effects:
[0039] This invention provides a friction device for cleaning waste plastics. A cleaning cylinder 1 provides the cleaning space, and a support plate 2 supports a conveying cylinder 3. A first motor 4 drives a rotating shaft 5 and spiral blades 6 to automatically convey waste plastics. A water spray pipe 8 and nozzles 9 spray water for initial washing, and a connecting column 10 connects to a circular water tank 11 for water supply. A feeding hopper 13 feeds the waste plastic, and a discharge hopper 14 delivers it through a collection box 16 and an inlet square pipe 15 to the cleaning cylinder 1, improving cleaning efficiency and automation.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A friction device for cleaning waste plastics, characterized in that, include: A cleaning cylinder has a support plate fixedly connected to its top, and a conveying cylinder fixedly connected to the top of the support plate. A first motor is fixedly connected to one end of the conveying cylinder, and a rotating shaft is fixedly connected to one end of the first motor. The outer surface of the rotating shaft penetrates the conveying cylinder and extends into its interior. Helical blades are fixedly connected to the outer surface of the rotating shaft. A semi-circular groove is formed on the outside of the conveying cylinder, and a water spray pipe is installed inside the semi-circular groove. A nozzle is fixedly connected to the outer surface of the water spray pipe, and the outer surface of the nozzle penetrates the conveying cylinder and extends into its interior. Inside, a connecting column is fixedly connected to the other end of the conveying cylinder, and a circular water tank is fixedly connected to the other end of the connecting column. A water injection pipe is fixedly connected to the top of the circular water tank, and one side of the circular water tank is fixedly connected to the other end of the spray pipe. A feed hopper is provided at the top of the conveying cylinder, and a discharge hopper is provided at the bottom of the other end of the conveying cylinder. A feed square tube is fixedly connected to the top of the washing cylinder, and a collection box is fixedly connected to the top of the feed square tube. An inclined plate is fixedly connected inside the collection box, and the outer surface of the discharge hopper penetrates through the collection box and extends into the interior of the collection box.
2. The rubbing device for cleaning of waste plastic as claimed in claim 1 wherein, A second motor is fixedly connected to the top of the cleaning cylinder, and a rotating shaft is fixedly connected to the bottom of the second motor. The outer surface of the rotating shaft penetrates through the cleaning cylinder and extends into the interior of the cleaning cylinder. A stirring plate is fixedly connected to the outer surface of the rotating shaft, and a rotating plate is fixedly connected to the outer surface of the rotating shaft. A pusher block is fixedly connected to the bottom of the rotating plate. A vertical groove is formed on the inner wall of the cleaning cylinder, and a telescopic tube is fixedly connected inside the vertical groove. A spring is provided on the outside of the telescopic tube, and a vertical plate is fixedly connected to the other end of the telescopic tube. A brush is provided on the other side of the vertical plate.
3. The rubbing device for cleaning of waste plastic as claimed in claim 1 wherein, The bottom of the cleaning cylinder is fixedly connected to a discharge square tube, and the bottom of the cleaning cylinder is fixedly connected to an electric push rod. One end of the electric push rod is fixedly connected to a sealing plate. The outer surface of the sealing plate penetrates through the discharge square tube and extends into the interior of the discharge square tube. The outer surface of the sealing plate is slidably connected to the interior of the discharge square tube.
4. The rubbing device for cleaning of waste plastic as claimed in claim 1 wherein, The inner wall of the conveying cylinder is provided with a water trough, and the inside of the water trough is provided with a straight groove plate. A drainage square pipe is fixedly connected to the bottom of the conveying cylinder.
5. The rubbing device for cleaning of waste plastic as claimed in claim 1 wherein, The cleaning cylinder is externally fixedly connected to a control panel.
6. The rubbing device for cleaning of waste plastic as claimed in claim 1 wherein, The cleaning cylinder is fixedly connected to a liquid level observation window.