Screening type plastic recycling machine
By designing a screened plastic recycling machine, the internal tank crushing, buffering inner layer to reduce wear and multi-layer filter screening is solved, and the existing equipment has been effectively recovered and the equipment stability is achieved.
Patent Information
- Application Number
- CN202510393533.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-07-22
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing plastic recycling equipment has problems such as low crushing efficiency, poor screening accuracy and easy equipment damage, especially when dealing with plastics of different materials and shapes.
A sieve powder plastic recycling machine is designed, including supporting countertops, outer tanks, inner tanks, buffer inner layer, gear sets and multi-layer filter structures. Power is provided by driving motors, the inner tank crushes plastic, buffer inner layer reduces wear, and multi-layer filters are finely screened, and airflow assists screening.
It realizes efficient plastic crushing and fine screening, reduces equipment wear, reduces noise, and improves recycling quality and equipment stability.
Smart Images
Figure CN120347915A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of plastic recycling equipment, and specifically relates to a powder screening type plastic recycling machine. Background Art
[0002] With the wide use of plastic products, the recycling and treatment of plastic waste have become increasingly important. In the process of crushing and screening plastics by traditional plastic recycling equipment, there are problems such as low efficiency, low screening accuracy, and easy damage of the equipment. Some recycling equipment uses a single mechanical crushing method, which cannot effectively crush plastics of different materials and shapes. Moreover, in the screening process, it cannot accurately separate plastic powders of different particle sizes, resulting in uneven quality of the recycled plastics. At the same time, during the operation of the existing equipment, due to the lack of effective buffer and protection structures, the equipment components are easily damaged due to collision and friction, increasing the maintenance cost and equipment downtime. Therefore, those skilled in the art have provided a powder screening type plastic recycling machine to solve the problems raised in the above background art. Summary of the Invention
[0003] (1) Technical Problems to be Solved
[0004] Aiming at the deficiencies of the prior art, the present invention provides a powder screening type plastic recycling machine, which can solve the problems of low crushing efficiency, poor screening accuracy, and easy damage of the existing plastic recycling equipment.
[0005] (2) Technical Solutions
[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A powder screening type plastic recycling machine includes a support tabletop. The bottom end of the support tabletop is fixedly connected with a plurality of support feet, and the top end of the support tabletop is fixedly connected with an outer tank. The top end of the outer tank is fixedly connected with a support cover, the top end of the support cover is fixedly connected with a tank cover, the top end of the tank cover is fixedly connected with a transmission box, the bottom end of the transmission box, far from the tank cover, is fixedly connected with a driving motor. The bottom end of the outer tank is fixedly connected with a feeding pipe, the end of the feeding pipe far from the outer tank is fixedly connected with a through port, and the outer wall of the feeding pipe penetrates through the support tabletop. The bottom end of the through port is fixedly connected with a top feeding cover, and the bottom end of the top feeding cover is fixedly connected with a fixing plate.
[0007] Through the above technical solution, by setting a support tabletop with multiple support feet connected to its bottom, the device provides a stable support foundation, ensuring that the equipment does not shake or displace during operation, guaranteeing the stability of the equipment operation. The outer tank is used to accommodate the materials during the plastic crushing process and provide a relatively enclosed working space to prevent material splashing. The support cover plays a role in assisting the support of the tank cover and connecting the outer tank. The tank cover further seals the top space of the outer tank and provides an installation position for the transmission box. The driving motor serves as the power source of the entire equipment, providing the required power for the operation of the equipment. The function of the feed pipe is to transport the preliminarily processed plastic materials in the outer tank to the screening structure below. The through-hole plays a role in transitional connection, connecting the feed pipe to the top feed cover. The top feed cover can prevent materials from leaking at the connection between the feed pipe and the lower structure on the one hand, and provide installation support for the fixed plate on the other hand. The fixed plate is used to fix the screening-related components such as the sealing box below.
[0008] Preferably, a sealing box is fixedly connected to the bottom end of the fixed plate. A plurality of flange ports are fixedly connected to one side of the outer wall of the sealing box, and a feed filter screen is fixedly connected to the bottom end of the sealing box. A fixed box is fixedly connected to the bottom end of the feed filter screen. The inner walls of the plurality of flange ports are all penetrated by gas transmission pipes, and the top ends of the plurality of gas transmission pipes are all fixedly connected with gas valves.
[0009] Through the above technical solution, by setting the sealing box to initially receive the plastic materials conveyed from the feed pipe and cooperating with the gas transmission structure to preprocess the materials, the flange ports are used to connect the gas transmission pipes to realize the access of gas, and the feed filter screen can initially screen the materials entering the sealing box, blocking larger particle materials from entering the subsequent screening structure to avoid damage to the subsequent equipment. The fixed box is connected below the feed filter screen. The fixed box is the main screening area, with multiple layers of filter screens installed inside for fine screening of plastic materials. The plurality of flange ports are penetrated by gas transmission pipes. The gas transmission pipes transport the gas in the gas storage tank into the sealing box, driving the plastic materials to move through the gas flow to assist the screening process. By using the gas valves to control the flow rate and on-off of the gas, the gas supply can be flexibly adjusted according to the actual screening requirements.
[0010] Preferably, a transmission pipe is fixedly connected to one side of the outer wall of each of the plurality of gas transmission pipes. The bottom ends of the plurality of transmission pipes are all fixedly connected with air outlets, and the bottom ends of the plurality of gas transmission pipes are fixedly connected with a gas storage tank.
[0011] Through the above technical solution, by setting the transmission pipes to further guide the gas in the gas transmission pipes to the air outlets, the air outlets can eject the gas at a specific flow rate and direction to form an effective airflow field in the sealing box, driving the plastic materials to move on the feed filter screen and improving the screening efficiency. The gas storage tank is used to store gas at a certain pressure to provide a stable gas source for the entire gas transmission and screening system.
[0012] Preferably, the inner wall of the fixed box is fixedly connected with a plurality of filter screens, and the plurality of filter screens are all located at the bottom end of the air outlet, the bottom end of the fixed box is fixedly connected with a discharge port, and the bottom end of the discharge port is fixedly connected with a collection box;
[0013] Through the above technical solution, by setting up multiple filter screens fixedly connected to the inner wall of the fixed box, the material that has been preliminarily screened by the feed filter can be further graded and screened, and plastic powders of different particle sizes can be accurately separated. The plastic powder that has been screened and meets the particle size requirements can be output to the collection box through the discharge port.
[0014] Preferably, a buffer inner layer is fixedly connected to the inner wall of the outer tank, and a plurality of buffer card plates are fixedly connected to the inner wall of the buffer inner layer;
[0015] Through the above technical solution, by setting up a buffer inner layer, the device can play a buffering role during the movement and crushing of the plastic material in the tank, reduce the direct collision between the material and the inner wall of the outer tank, reduce equipment wear and noise, and the inner wall of the buffer inner layer is fixedly connected to a plurality of buffer pallets. The buffer pallets can assist in the crushing of the plastic material by colliding and rubbing with the material to break the plastic material into smaller particles, and further enhance the buffering effect on the other hand.
[0016] Preferably, the inner wall of the tank cover is rotatably connected to a gear set, the center position of the gear set is transmission-connected to a driving wheel via a rotating rod, the outer wall of the driving wheel is transmission-connected to a transmission toothed belt, the inner wall of the transmission toothed belt is transmission-connected to an end away from the driving wheel with a driving gear, and the bottom end of the driving gear is fixedly connected to the output end of the driving motor;
[0017] Through the above technical solution, the gear set plays the role of power transmission and speed change, and transmits the power of the drive motor to the inner tank through a specific gear transmission ratio, so that it rotates at a suitable speed. The drive wheel is connected to the driving gear through a transmission belt, and the driving gear is installed on the output end of the drive motor. This transmission method can efficiently transmit the power of the drive motor to the gear set.
[0018] Preferably, the bottom end of the gear set is fixedly connected to a plurality of fixing rods, the bottom ends of the plurality of fixing rods are fixedly connected to an inner tank, the outer wall of the inner tank is fixedly connected to a plurality of connecting rods, and the ends of the plurality of connecting rods away from the inner tank are fixedly connected to a buffer ring;
[0019] Through the above technical solution, the fixing rod is used to connect the gear set and the inner tank, transmit the rotation of the gear set to the inner tank, and drive the inner tank to rotate. The inner tank is the main crushing area of the plastic material. During its rotation, the plastic material inside is continuously crushed and stirred under the action of the crushing rod connected below the gear set. A plurality of connecting rods are connected to the outer wall of the inner tank, and the connecting rods connect the inner tank to the buffer ring. The buffer ring is located between the inner tank and the outer tank.
[0020] Preferably, a plurality of buffer clamping plates are fixedly connected to the outer walls of the plurality of buffer rings, and the plurality of buffer clamping plates fixedly connected to the outer walls of the plurality of buffer rings correspond to the plurality of buffer clamping plates fixedly connected to the inner walls of the plurality of buffer inner layers;
[0021] Through the above technical solution, a plurality of buffer clamping plates are also connected to its outer wall. The buffer ring and the buffer clamping plates thereon cooperate with the buffer clamping plates on the buffer inner layer to further enhance the buffering and crushing effects, reduce the vibration and noise during the operation of the equipment, and at the same time improve the crushing efficiency of the plastic material.
[0022] Working principle: After the driving motor of this device is started, its output end drives the driving gear to rotate at a high speed. The driving gear drives the driving wheel to rotate through the transmission belt. The rotation of the driving wheel is transmitted to the gear set through the rotating rod. According to the internal gear transmission ratio of the gear set, the power is reasonably distributed and speed-changed, and then drives the inner tank to rotate at an appropriate speed through the fixing rod, providing power for the crushing of the plastic material. Put the plastic to be recycled into the inner tank. With the rotation of the inner tank and the action of the crushing rod fixed below the gear set, because the gears in the gear set have different sizes, the rotation speeds of the inner tank and the crushing rod are different, so that the plastic in the tank is broken and stirred under the continuous impact and friction of the inner tank and the crushing rod. The buffer clamping plates on the buffer inner layer and the buffer ring cooperate with each other. On the one hand, it collides and crushes the plastic material from multiple angles, so that the plastic material can be more fully crushed into small particles. On the other hand, it plays a buffering role during the movement of the material, reducing the impact of the material on the inner tank and the outer tank, reducing equipment wear and operating noise. The crushed plastic powder enters the outer tank through the pores or other outlets on the inner tank wall, and then enters the sealing box through the feed pipe. The gas in the air storage tank is controlled by the air supply valve and sprays out from the air outlet through the air supply pipe and the transmission pipe, forming a high-speed air flow in the sealing box. The air flow drives the plastic powder to move on the feed filter screen to achieve preliminary screening. Larger particles are intercepted by the feed filter screen, and smaller particles enter the fixed box under the action of the air flow. In the fixed box, plastic powders of different particle sizes are finely screened under the action of multiple filter screens. The powder meeting the particle size requirements enters the aggregate box through the discharge port for collection, and the larger particles are intercepted by the filter screen and remain in the fixed box for further processing.
[0023] (III) Beneficial effects
[0024] The present invention provides a plastic recycling machine with a powder screening function, having the following beneficial effects:
[0025] 1. The present invention provides a plastic recycling machine with a powder screening function. Through the inner tank and buffer clamping plate structure, efficient plastic crushing is achieved. The crushing area with the inner tank as the core rotates at a high speed driven by a driving motor. The plastic materials inside are quickly crushed and stirred under the continuous impact and friction of the crushing rods and the inner tank.
[0026] 2. The present invention provides a plastic recycling machine with a powder screening function. By setting a feed filter screen to preliminarily screen the materials entering the sealing box, larger particles are blocked to avoid damage to subsequent equipment. The multi-layer filter screens with different pore diameters in the fixed box can further classify and screen the preliminarily screened materials.
[0027] 3. The present invention provides a plastic recycling machine with a powder screening function. By setting a buffer inner layer and buffer clamping plates on the inner wall of the outer tank, and the buffer rings and buffer clamping plates between the inner tank and the outer tank cooperate with each other to play a buffering role during the movement and crushing of the materials. This not only reduces the direct collision between the materials and the inner wall of the equipment, reduces equipment wear, but also greatly reduces the operating noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is a three-dimensional structural schematic diagram of the present invention;
[0029] Figure 2 is a multi-angle three-dimensional structural schematic diagram of the present invention;
[0030] Figure 3 is a schematic diagram of the internal structure of the outer tank of the present invention;
[0031] Figure 4 is a schematic diagram of the connection structure of the inner tank of the present invention;
[0032] Figure 5 is a schematic diagram of the connection structure of the transmission pipe of the present invention;
[0033] Figure 6 is a schematic diagram of the connection structure of the filter screen of the present invention.
[0034] Among them, 1. Support tabletop; 2. Support feet; 3. Outer tank; 4. Support cover; 5. Tank cover; 6. Transmission box; 7. Driving motor; 8. Feeding pipe; 9. Through port; 10. Top feeding cover; 11. Fixed plate; 12. Sealing box; 13. Fixed box; 14. Flange port; 15. Air delivery pipe; 16. Air delivery valve; 17. Transmission pipe; 18. Air outlet; 19. Filter screen; 20. Discharge port; 21. Aggregate box; 22. Gas storage tank; 23. Feeding filter screen; 24. Buffer card board; 25. Buffer ring; 26. Connecting rod; 27. Buffer inner layer; 28. Inner tank; 29. Gear set; 30. Driving wheel; 31. Transmission toothed belt; 32. Driving gear; 33. Fixed rod. Detailed implementation mode
[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. In the description of this application, it should be noted that the terms used here are only for the purpose of describing specific implementation modes, rather than intending to limit the exemplary implementation modes according to this application. For the convenience of description, the dimensions of each part shown in the accompanying drawings are not drawn according to the actual proportional relationship. In all the examples shown and discussed here, any specific value should be interpreted as only exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.
[0036] Embodiment 1:
[0037] As Figure 1-6As shown in the figure, an embodiment of the present invention provides a powder screening type plastic recycling machine, which includes a support table 1. A plurality of support feet 2 are fixedly connected to the bottom end of the support table 1, and an outer tank 3 is fixedly connected to the top end of the support table 1. A support cover 4 is fixedly connected to the top end of the outer tank 3. A tank cover 5 is fixedly connected to the top end of the support cover 4. A transmission box 6 is fixedly connected to the top end of the tank cover 5. A driving motor 7 is fixedly connected to one end of the bottom end of the transmission box 6 away from the tank cover 5. A feed pipe 8 is fixedly connected to the bottom end of the outer tank 3. One end of the feed pipe 8 away from the outer tank 3 is fixedly connected to a through port 9, and the outer wall of the feed pipe 8 penetrates through the support table 1. The bottom end of the through port 9 is fixedly connected to a top feed cover 10. A fixing plate 11 is fixedly connected to the bottom end of the top feed cover 10. By providing the support table 1, with a plurality of support feet 2 connected to its bottom, a stable support foundation is provided for the device, ensuring that the device will not shake or displace during operation, and guaranteeing the stability of the device operation. The outer tank 3 is used to accommodate the materials during the plastic crushing process and provide a relatively enclosed working space to prevent the materials from splashing. The support cover 4 plays a role in assisting the support of the tank cover 5 and connecting the outer tank 3. The tank cover 5 further seals the top space of the outer tank 3 and provides an installation position for the transmission box 6. The driving motor 7 serves as the power source of the entire device and provides the required power for the operation of the device. The function of the feed pipe 8 is to convey the preliminarily processed plastic materials in the outer tank 3 to the screening structure below. The through port 9 plays a role of transitional connection, connecting the feed pipe 8 with the top feed cover 10. The top feed cover 10 can prevent the materials from leaking at the connection between the feed pipe 8 and the lower structure on the one hand, and provide installation support for the fixing plate 11 on the other hand. The fixing plate 11 is used to fix the screening related components such as the sealing box 12 below.
[0038] The bottom end of the fixed plate 11 is fixedly connected with a sealing box 12. One side of the outer wall of the sealing box 12 is fixedly connected with a plurality of flange ports 14. And the bottom end of the sealing box 12 is fixedly connected with a feed filter screen 23. The bottom end of the feed filter screen 23 is fixedly connected with a fixed box 13. The inner walls of the plurality of flange ports 14 are all penetrated by gas transmission pipes 15. The top ends of the plurality of gas transmission pipes 15 are all fixedly connected with gas valves 16. By setting the sealing box 12 to initially receive the plastic materials conveyed from the feeding pipe 8 and cooperate with the gas transmission structure to pre-treat the materials. The flange ports 14 are used to connect the gas transmission pipes 15 to realize the access of gas. And the feed filter screen 23 can initially screen the materials entering the sealing box 12, blocking larger particle materials from entering the subsequent screening structure to avoid damaging the subsequent equipment. The fixed box 13 is connected below the feed filter screen 23. The fixed box 13 is the main screening area, and multiple filter screens 19 are installed inside for fine screening of plastic materials. The gas transmission pipes 15 penetrate through the plurality of flange ports 14. The gas transmission pipes 15 convey the gas in the gas storage tank 22 into the sealing box 12. The movement of plastic materials is driven by the gas flow to assist the screening process. The gas valves 16 are used to control the flow rate and on-off of the gas, and the gas supply can be flexibly adjusted according to the actual screening requirements. One side of the outer wall of each of the plurality of gas transmission pipes 15 is fixedly connected with a transmission pipe 17. The bottom ends of the plurality of transmission pipes 17 are all fixedly connected with air outlets 18. And the bottom ends of the plurality of gas transmission pipes 15 are fixedly connected with a gas storage tank 22. By setting the transmission pipes 17, the gas in the gas transmission pipes 15 is further guided to the air outlets 18. The air outlets 18 can eject the gas at a specific flow rate and direction to form an effective air flow field in the sealing box 12, driving the plastic materials to move on the feed filter screen 23 and improving the screening efficiency. The gas storage tank 22 is used to store gas at a certain pressure to provide a stable gas source for the entire gas transmission and screening system. A plurality of filter screens 19 are fixedly connected to the inner wall of the fixed box 13. The plurality of filter screens 19 are all located at the bottom end of the air outlet 18. The bottom end of the fixed box 13 is fixedly connected with a discharge port 20. The bottom end of the discharge port 20 is fixedly connected with an aggregate box 21. By setting a plurality of filter screens 19 fixedly connected to the inner wall of the fixed box 13, the materials initially screened by the feed filter screen 23 can be further classified and screened to accurately separate plastic powders of different particle sizes. Through the discharge port 20, the plastic powders that meet the particle size requirements after screening are output to the aggregate box 21. The inner wall of the outer tank 3 is fixedly connected with a buffer inner layer 27. The inner wall of the buffer inner layer 27 is fixedly connected with a plurality of buffer clamping plates 24. By setting the buffer inner layer 27, the device can play a buffering role during the movement and crushing of plastic materials in the tank, reducing the direct collision between the materials and the inner wall of the outer tank 3 and reducing equipment wear and noise. A plurality of buffer clamping plates 24 are fixedly connected to the inner wall of the buffer inner layer 27. On the one hand, the buffer clamping plates 24 can assist in the crushing of plastic materials. By colliding with and rubbing against the materials, the plastic materials are crushed into smaller particles. On the other hand, the buffering effect is further enhanced. The inner wall of the tank cover 5 is rotatably connected with a gear set 29,The central position of the gear set 29 is drivingly connected to a driving wheel 30 through a rotating rod. The outer wall of the driving wheel 30 is drivingly connected to a transmission belt 31. One end of the inner wall of the transmission belt 31 away from the driving wheel 30 is drivingly connected to a driving gear 32. The bottom end of the driving gear 32 is fixedly connected to the output end of the driving motor 7. The gear set 29 plays a role in power transmission and speed change, transmitting the power of the driving motor 7 to the inner tank 28 through a specific gear transmission ratio, enabling it to rotate at an appropriate speed. The driving wheel 30 is connected to the driving gear 32 through the transmission belt 31, and the driving gear 32 is installed on the output end of the driving motor 7. This transmission method can efficiently transmit the power of the driving motor 7 to the gear set 29. The bottom end of the gear set 29 is fixedly connected to a plurality of fixing rods 33, and the bottom ends of the plurality of fixing rods 33 are fixedly connected to the inner tank 28. The outer wall of the inner tank 28 is fixedly connected to a plurality of connecting rods 26. One end of each of the plurality of connecting rods 26 away from the inner tank 28 is fixedly connected to a buffer ring 25. The fixing rods 33 are used to connect the gear set 29 and the inner tank 28, transmitting the rotation of the gear set 29 to the inner tank 28 and driving the inner tank 28 to rotate. The inner tank 28 is the main crushing area for plastic materials. During its rotation, the plastic materials inside are continuously crushed and stirred under the action of the crushing rods connected below the gear set 29. A plurality of connecting rods 26 are connected to the outer wall of the inner tank 28, and the connecting rods 26 connect the inner tank 28 to the buffer ring 25. The buffer ring 25 is located between the inner tank 28 and the outer tank 3. A plurality of buffer clamping plates 24 are fixedly connected to the outer walls of the plurality of buffer rings 25. The plurality of buffer clamping plates 24 fixedly connected to the outer walls of the plurality of buffer rings 25 correspond to the plurality of buffer clamping plates 24 fixedly connected to the inner wall of the buffer inner layer 27. The outer wall of the buffer inner layer 27 is also connected to a plurality of buffer clamping plates 24. The buffer ring 25 and the buffer clamping plates 24 thereon cooperate with the buffer clamping plates 24 on the buffer inner layer 27 to further enhance the buffering and crushing effects, reduce the vibration and noise during the operation of the equipment, and at the same time improve the crushing efficiency of the plastic materials.,
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A powder-screening type plastic recycling machine, comprising a support tabletop (1), characterized in that: The bottom end of the support table (1) is fixedly connected to a plurality of support legs (2), and the top end of the support table (1) is fixedly connected to an outer tank (3), the top end of the outer tank (3) is fixedly connected to a support cover (4), the top end of the support cover (4) is fixedly connected to a tank cover (5), the top end of the tank cover (5) is fixedly connected to a transmission box (6), the bottom end of the transmission box (6) away from the tank cover (5) is fixedly connected to a drive motor (7), the bottom end of the outer tank (3) is fixedly connected to a feed pipe (8), the end of the feed pipe (8) away from the outer tank (3) is fixedly connected to a through-hole (9), and the outer wall of the feed pipe (8) penetrates the support table (1), the bottom end of the through-hole (9) is fixedly connected to a top feed cover (10), and the bottom end of the top feed cover (10) is fixedly connected to a fixing plate (11).
2. The powder screening type plastic recycling machine according to claim 1, characterized in that: The bottom end of the fixed plate (11) is fixedly connected to a sealing box (12), one side of the outer wall of the sealing box (12) is fixedly connected to a plurality of flange openings (14), and the bottom end of the sealing box (12) is fixedly connected to a feed filter (23), the bottom end of the feed filter (23) is fixedly connected to the fixed box (13), the inner walls of the plurality of flange openings (14) are penetrated by gas pipes (15), and the top ends of the plurality of gas pipes (15) are fixedly connected to gas valves (16).
3. A powder screening type plastic recycling machine according to claim 2, characterized in that: One side of the outer wall of the plurality of gas delivery pipes (15) is fixedly connected to a transmission pipe (17), the bottom ends of the plurality of transmission pipes (17) are fixedly connected to a gas outlet (18), and the bottom ends of the plurality of gas delivery pipes (15) are fixedly connected to a gas storage tank (22).
4. The powder screening type plastic recycling machine according to claim 2, characterized in that: The inner wall of the fixed box (13) is fixedly connected with a plurality of filter screens (19), and the plurality of filter screens (19) are all located at the bottom end of the air outlet (18). The bottom end of the fixed box (13) is fixedly connected with a discharge port (20), and the bottom end of the discharge port (20) is fixedly connected with a collection box (21).
5. A powder screening type plastic recycling machine according to claim 1, characterized in that: A buffer inner layer (27) is fixedly connected to the inner wall of the outer tank (3), and a plurality of buffer clamping plates (24) are fixedly connected to the inner wall of the buffer inner layer (27).
6. A powder screening type plastic recycling machine according to claim 1, characterized in that: The inner wall of the tank cover (5) is rotatably connected to a gear set (29); the center of the gear set (29) is transmission-connected to a driving wheel (30) via a rotating rod; the outer wall of the driving wheel (30) is transmission-connected to a transmission toothed belt (31); the inner wall of the transmission toothed belt (31) is transmission-connected to an active gear (32) at one end thereof away from the driving wheel (30); the bottom end of the active gear (32) is fixedly connected to the output end of the driving motor (7).
7. The powder screening type plastic recycling machine according to claim 6, wherein: The bottom end of the gear set (29) is fixedly connected to a plurality of fixing rods (33), the bottom ends of the plurality of fixing rods (33) are fixedly connected to an inner tank (28), the outer wall of the inner tank (28) is fixedly connected to a plurality of connecting rods (26), and the ends of the plurality of connecting rods (26) away from the inner tank (28) are fixedly connected to a buffer ring (25).
8. A powder screening type plastic recycling machine according to claim 7, characterized in that: A plurality of buffer cards (24) are fixedly connected to the outer walls of the plurality of buffer rings (25), and the plurality of buffer cards (24) fixedly connected to the outer walls of the plurality of buffer rings (25) correspond to the plurality of buffer cards (24) fixedly connected to the inner walls of the plurality of buffer inner layers (27).