Mixing device for processing plastic products from waste plastics

Abstract

The mixing device comprises a bottom frame and an inner tank, one side of one end of the bottom frame is fixedly connected with an electric control box, the top end of the bottom frame is fixedly connected with an outer tank, a supporting sleeve frame is fixedly connected to one side of the inner side wall of the inner tank, and the bottom end of the inner tank is fixedly connected with a discharging opening. A transmission rod is driven by a motor assembly to rotate, so that waste plastics are stirred by multiple groups of stirring plates and a ring sleeve, and the stirring plates are inclined, so that the flowing of the waste plastics is accelerated, and the waste plastics are quickly mixed; meanwhile, when the stirring plate and the ring sleeve conduct stirring, the sliding block slides along the spiral groove, so that the stirring plate and the ring sleeve conduct spiral reciprocating linear rotation while rotating, the stirring range is enlarged, and the shaft sticking phenomenon of plastic fibers is avoided; furthermore, a plurality of scraper blocks clean the inner wall of the inner tank while the ring sleeve rotates linearly and spirally in a reciprocating manner, so that the inner wall of the inner tank is prevented from adsorbing a large amount of waste plastic residues.

Description

Technical Field

[0001] This invention relates to the field of waste plastic recycling and mixing equipment, and particularly to a mixing equipment for processing waste plastics into plastic products. Background Technology

[0002] Various plastic products are used in industrial production. To reduce production costs and avoid pollution, recyclable plastic materials are often used in production. When the plastic is damaged and discarded, it can be recycled. To facilitate the recycling of plastic materials, multiple plastic materials are often heated and mixed together for processing. Therefore, a special mixing device for processing waste plastic into plastic products is used.

[0003] Existing mixing devices for processing waste plastics into plastic products involve feeding various cut and crushed waste plastic particles into the device, heating them to a molten state, and simultaneously using a motor-driven stirring rod to rapidly mix the molten plastic. This facilitates the recycling of the waste plastics. While common mixing devices for processing waste plastics into plastic products generally have good mixing effects, some problems still exist: When the device heats and mixes waste plastics, the films and fibers in the waste plastics are easily entangled in the stirring rods and cause the rods to seize, which in turn leads to the phenomenon of mixing dead zones. Summary of the Invention

[0004] The purpose of this invention is to provide a mixing device for processing waste plastics into plastic products, in order to solve the defect of existing mixing devices for processing waste plastics into plastic products that are prone to forming mixing dead zones during the stirring process.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mixing device for processing waste plastics into plastic products, comprising a base frame and an inner tank, an electrical control box fixedly connected to one side of one end of the base frame, an outer tank fixedly connected to the top of the base frame, a motor assembly fixedly connected to one side of the outer tank, a feed inlet fixedly connected to the top of the outer tank, a thermal circulation structure provided above the outer tank, an inner tank fixedly connected inside the outer tank, an electric heating assembly wound around the outside of the inner tank, and an auxiliary structure provided inside the inner tank, the auxiliary structure including a support sleeve, a spiral groove, a transmission rod, a slide groove, a sliding sleeve, a stirring plate, a ring sleeve, a slider, a scraper shell, a guide groove, a return spring, a guide block, and a scraper plate, the support sleeve being fixedly connected to one side of the inner wall of the inner tank, and a discharge port fixedly connected to the bottom of the inner tank.

[0006] During use, the crushed waste plastics are fed into the inner tank through the inlet. Then, the electric heating component is activated through the electrical control box to generate constant temperature heat, which quickly melts the waste plastics inside the inner tank. Driven by the motor component, the transmission rod drives the stirring plate to stir and mix the materials, so that the waste plastics are quickly mixed in a molten state. After mixing is completed, the discharge port is opened to discharge the waste plastics.

[0007] Preferably, the thermal circulation structure includes an outlet check valve, an outlet pipe, an inlet check valve, an inlet pipe, a turntable, a connecting rod, a cylinder, a piston rod, a piston body, a connecting sleeve, a first one-way valve, a second one-way valve, a filter cartridge, an inlet, an outlet, a turbine fan, and a drain plug. The outlet check valve is fixedly connected to the top of the inner tank, and an outlet pipe is fixedly connected to the top of the outlet check valve. An inlet check valve is fixedly connected to the bottom of the inner tank, and an inlet pipe is fixedly connected to the bottom of the inlet check valve. A turntable is located at the middle of one side of the outer tank, and one side of the turntable is rotatably connected to... The device has a linkage rod, a cylinder is located below the turntable, a piston rod runs through the inside of the top of the cylinder, a piston body is fixedly connected to the bottom of the piston rod, a connecting sleeve is fixedly connected to the top of the outer side of the piston rod, a first one-way valve is fixedly connected to the bottom of one side of the cylinder, a second one-way valve is fixedly connected to the bottom of the other side of the cylinder, a filter cartridge is located on one side of the cylinder, an air inlet is fixedly connected to one end of the filter cartridge, an air outlet is located below the air inlet, a turbine fan is rotatably connected to the top of the inside of the filter cartridge, and a drain plug is installed inside the bottom of the filter cartridge.

[0008] Preferably, several outlet check valves and inlet check valves are fixedly connected at both ends of the inner tank, and the several outlet check valves and inlet check valves are distributed at equal intervals at both ends of the inner tank.

[0009] Preferably, the air outlet pipe is connected to the interior of the second one-way valve, and the connecting rod and the top of the piston rod are hinged.

[0010] Preferably, the air intake pipe is connected to the interior of the first one-way valve, and the cylinder and piston rod have a sliding structure, so that hot air is pulled and flowed under negative pressure.

[0011] Preferably, one side of the turntable and one side of the outer tank are in a rotating structure, and the top of the inside of the filter cartridge and the top of the turbine fan are in a rotating structure, so that the turbine fan separates water and particulate impurities under the action of rotation and centrifugation.

[0012] Preferably, the inner wall of the inner tank has a spiral groove, and a transmission rod is rotatably connected to the middle position of both sides inside the inner tank. Both ends of the transmission rod have sliding grooves, and a sliding sleeve is fitted on the outer side of the transmission rod. A stirring plate is fixedly connected to the outer wall of the sliding sleeve, and a ring is fixedly connected to the outer side of the stirring plate. Both ends of the ring are fixedly connected to sliders, and a scraper shell is fixedly connected to the outer wall of the ring. A guide groove is formed inside the scraper shell, and a return spring is provided at the bottom of the guide groove. A guide block is slidably connected to the top of the guide groove, and a scraper plate is fixedly connected to the top of the guide block.

[0013] Preferably, the interior of the support sleeve and one side of the outer wall of the transmission rod are in a rotating structure, and the spiral groove and the slider are in a sliding structure, so that the stirring plate and the ring sleeve can move in a spiral reciprocating linear motion while rotating and stirring.

[0014] Preferably, the sliding sleeve is slidably connected to the transmission rod via a sliding groove, and the stirring plates are arranged in a ring on the outer side of the sliding sleeve, thereby improving the cleaning efficiency of the inner wall.

[0015] Preferably, the scraper shell is arranged in a ring on the outer wall of the ring sleeve, and the scraper plates are evenly distributed inside the top of the scraper shell, so that several scraper plates can be retracted to avoid the scraper plates from breaking when they come into contact with harder particles.

[0016] Compared with the prior art, the beneficial effects of the present invention are: under the rotation of the transmission rod, the stirring plate and the ring sleeve stir the waste plastic and move back and forth laterally, thereby improving the mixing efficiency of the plastic. At the same time, through the linkage of the transmission rod, several piston rods move back and forth and the cylinder draws hot air from the inside of the inner tank to circulate the hot air, thereby improving the heating efficiency of the waste plastic. 1. The transmission rod is driven to rotate by the motor assembly, thereby causing multiple sets of stirring plates and rings to stir the waste plastic. The stirring plates are inclined to accelerate the flow of waste plastic, thereby enabling the waste plastic to be mixed quickly. At the same time, while the mixing plate and the ring sleeve are mixing, the slider slides along the spiral groove, so that the mixing plate and the ring sleeve rotate in a spiral reciprocating linear rotation at the same time, thereby increasing the mixing range and avoiding the phenomenon of plastic fibers sticking to the shaft. Furthermore, while the ring reciprocates in a linear spiral rotation, several scraping plates will clean the inner wall of the inner tank, preventing the inner wall of the inner tank from adsorbing a large amount of waste plastic residue. 2. As the transmission rod rotates, it drives the turntable to rotate simultaneously, and through the connecting rod, it drives the piston rod and piston body to move up and down reciprocally. This causes the hot air to flow through negative pressure, so that the hot air is injected into the waste plastic in a pulse manner, thereby accelerating the heating efficiency of the waste plastic. Furthermore, hot air enters the interior of the filter cartridge through the air inlet. Under the action of airflow, the turbine fan rotates rapidly. At this time, particulate impurities and water vapor in the hot air fall rapidly to the bottom of the filter cartridge under the rotation line of the turbine fan, while the hot air is introduced into the second one-way valve through the air outlet. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of a three-dimensional partial structure of the present invention; Figure 4 This is a schematic diagram of a three-dimensional partial structure of the thermal cycling structure of the present invention; Figure 5 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the thermal cycling structure of the present invention; Figure 6 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the thermal cycling structure of the present invention; Figure 7 This is a schematic diagram of a three-dimensional partial structure of the auxiliary structure of the present invention; Figure 8 This is a schematic diagram of a three-dimensional partial structure of the auxiliary structure of the present invention; Figure 9 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the auxiliary structure of the present invention.

[0018] In the diagram: 1. Base frame; 2. Electrical control box; 3. Outer tank; 4. Motor assembly; 5. Feed inlet; 6. Thermal circulation structure; 601. Exhaust check valve; 602. Exhaust pipe; 603. Inlet check valve; 604. Inlet pipe; 605. Turntable; 606. Connecting rod; 607. Cylinder; 608. Piston rod; 609. Piston body; 610. Connecting sleeve; 611. First check valve; 612. Second check valve; 613. Filter cartridge; 614. Inlet... 615. Air outlet; 616. Turbine fan; 617. Drain plug; 7. Inner tank; 8. Heating element; 9. Auxiliary structure; 901. Support sleeve; 902. Spiral groove; 903. Transmission rod; 904. Slide groove; 905. Sliding sleeve; 906. Mixing plate; 907. Ring sleeve; 908. Sliding block; 909. Scraper shell; 910. Guide groove; 911. Return spring; 912. Guide block; 913. Scraper plate; 10. Discharge port. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-9This invention provides a mixing device for processing waste plastics into plastic products, comprising a base frame 1 and an inner tank 7. An electrical control box 2 is fixedly connected to one side of one end of the base frame 1, and an outer tank 3 is fixedly connected to the top of the base frame 1. A motor assembly 4 is fixedly connected to one side of the outer tank 3, and a feed inlet 5 is fixedly connected to the top of the outer tank 3. The inner tank 7 is fixedly connected inside the outer tank 3, and an electric heating assembly 8 is wound around the outside of the inner tank 7. A discharge port 10 is fixedly connected to the bottom of the inner tank 7. A heat circulation structure 6 is provided above the outer tank 3. The heat circulation structure 6 includes an outlet check valve 601, an outlet pipe 602, an inlet check valve 603, an inlet pipe 604, a turntable 605, and a linkage mechanism. The system includes a piston rod 606, a cylinder 607, a piston rod 608, a piston body 609, a connecting sleeve 610, a first one-way valve 611, a second one-way valve 612, a filter cartridge 613, an air inlet 614, an air outlet 615, a turbine fan 616, and a drain plug 617. An exhaust check valve 601 is fixedly connected to the top of the inner tank 7, and an exhaust pipe 602 is fixedly connected to the top of the exhaust check valve 601. An intake check valve 603 is fixedly connected to the bottom of the inner tank 7, and an intake pipe 604 is fixedly connected to the bottom of the intake check valve 603. A turntable 605 is located in the middle of one side of the outer tank 3, and a connecting rod 606 is rotatably connected to one side of the turntable 605. Below cylinder 605, cylinder 607 is installed. A piston rod 608 passes through the interior of the top of cylinder 607. A piston body 609 is fixedly connected to the bottom of piston rod 608. A connecting sleeve 610 is fixedly connected to the top of the outer side of piston rod 608. A first one-way valve 611 is fixedly connected to the bottom of one side of cylinder 607, and a second one-way valve 612 is fixedly connected to the bottom of the other side of cylinder 607. A filter cartridge 613 is installed on one side of cylinder 607. An air inlet 614 is fixedly connected to one end of filter cartridge 613. An air outlet 615 is installed below air inlet 614. A turbine fan 616 is rotatably connected to the top of the interior of filter cartridge 613. The bottom of filter cartridge 613... The inner end is equipped with a drain plug 617. Several outlet check valves 601 and inlet check valves 603 are fixedly connected to both ends of the inner tank 7, and the outlet check valves 601 and inlet check valves 603 are distributed at equal intervals at both ends of the inner tank 7. The outlet pipe 602 is connected to the interior of the second one-way valve 612. The top of the connecting rod 606 and the piston rod 608 are hinged. The inlet pipe 604 is connected to the interior of the first one-way valve 611. The cylinder 607 and the piston rod 608 are sliding. One side of the turntable 605 and one side of the outer tank 3 are rotating. The top of the filter cartridge 613 and the top of the turbine fan 616 are rotating.

[0021] See attached document Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6When mixing waste plastics in this mixing device, the pulverized waste plastics need to be heated to a molten state by the electric heating component 8 to facilitate subsequent waste plastic recycling processing. However, since the molten waste plastics are relatively viscous, a temperature difference often occurs between the inside and outside during heating. Therefore, an outlet check valve 601 and an inlet check valve 603 are fixed at the upper and lower ends of the inner tank 7, respectively. When the transmission rod 903 rotates, it drives the turntable 605 to rotate simultaneously. The connecting rod 606 drives the piston rod 608 and the piston body 609 to move up and down reciprocally. When the piston body 609 moves upward, the second one-way valve 612 and the outlet pipe 602 draw in the rising hot air inside the inner tank 7. When the piston body 609 moves downward, the first one-way valve 611 and the inlet pipe 604... Hot air is injected into the inner tank 7 from the bottom, thus injecting hot air into the waste plastic in a pulsed manner to accelerate the heating efficiency of the waste plastic. Since the waste plastic will produce a large number of suspended particulate impurities and a certain amount of water vapor during heating, the hot air is discharged through the outlet pipe 602 and enters the filter cartridge 613 through the inlet 614. Under the action of airflow, the turbine fan 616 rotates rapidly. At this time, the particulate impurities and water vapor in the hot air fall rapidly to the bottom of the filter cartridge 613 under the rotation of the turbine fan 616. The hot air is then introduced into the second one-way valve 612 through the outlet 615. After the device has been used for a period of time, the drain plug 617 can be opened to discharge the condensate and particulate impurities.

[0022] The inner tank 7 has an auxiliary structure 9 inside, which includes a support sleeve 901, a spiral groove 902, a transmission rod 903, a sliding groove 904, a sliding sleeve 905, a stirring plate 906, a ring sleeve 907, a slider 908, a scraper shell 909, a guide groove 910, a return spring 911, a guide block 912, and a scraper plate 913. The support sleeve 901 is fixedly connected to one side of the inner wall of the inner tank 7. The inner wall of the inner tank 7 has a spiral groove 902. The transmission rod 903 is rotatably connected to the middle position of both sides inside the inner tank 7. The transmission rod 903 has a sliding groove 904 inside both ends. The outer side of the transmission rod 903 is fitted with a sliding sleeve 905. The outer wall of the sliding sleeve 905 is fixedly connected to the stirring plate 906. The outer side of the stirring plate 906 is fixedly connected to the ring sleeve 907. Both ends are fixedly connected to sliders 908. The outer wall of the ring sleeve 907 is fixedly connected to a scraper shell 909. The scraper shell 909 has a guide groove 910 inside. A return spring 911 is set at the bottom of the guide groove 910. A guide block 912 is slidably connected to the top of the guide groove 910. A scraper plate 913 is fixedly connected to the top of the guide block 912. The inside of the support sleeve 901 and one side of the outer wall of the transmission rod 903 are in a rotating structure. The spiral groove 902 and the slider 908 are in a sliding structure. The sliding sleeve 905 is in a sliding structure with the transmission rod 903 through the sliding groove 904. The stirring plate 906 is distributed in a ring on the outside of the sliding sleeve 905. The scraper shell 909 is distributed in a ring on the outer wall of the ring sleeve 907. The scraper plate 913 is distributed at equal intervals inside the top of the scraper shell 909.

[0023] See attached document Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9In this mixing device, when processing waste plastics for subsequent recycling, the pulverized waste plastics are fed into the inner tank 7 through the feed inlet 5. Under the electric heating effect of the heating element 8, the pulverized waste plastics are rapidly heated to a molten state. To ensure thorough mixing of the waste plastics for subsequent recycling, the motor assembly 4 drives the transmission rod 903 to rotate. This causes multiple sets of stirring plates 906 and rings 907 to stir the waste plastics. The stirring plates 906 are inclined to accelerate the flow of the waste plastics, thus enabling rapid mixing. While the plate 906 is stirring, the ring 907 is rotated, and at the same time the slider 908 slides along the spiral groove 902. Since the sliding sleeve 905 is sleeved and slides on the outside of the transmission rod 903 through the sliding groove 904, the stirring plate 906 and the ring 907 rotate in a spiral reciprocating linear motion at the same time, thereby increasing the stirring range and preventing the plastic fibers from sticking to the shaft. Since several sliders 908 are fixed on the outer wall of the ring 907, several scraping plates 913 will clean the inner wall of the inner tank 7 while the ring 907 is reciprocating in a linear spiral motion, preventing the inner wall of the inner tank 7 from adsorbing a large amount of waste plastic residue.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mixing device for processing waste plastics into plastic products, comprising a base frame (1) and an inner tank (7); Its features are: An electrical control box (2) is fixedly connected to one side of one end of the base frame (1), and an outer tank (3) is fixedly connected to the top of the base frame (1). A motor assembly (4) is fixedly connected to one side of the outer tank (3), a feed inlet (5) is fixedly connected to the top of the outer tank (3), a heat circulation structure (6) is provided above the outer tank (3), and an inner tank (7) is fixedly connected inside the outer tank (3). The outer side of the inner tank (7) is wrapped with an electric heating component (8). The inner tank (7) is provided with an auxiliary structure (9). The auxiliary structure (9) includes a support sleeve (901), a spiral groove (902), a transmission rod (903), a slide groove (904), a sliding sleeve (905), a stirring plate (906), a ring sleeve (907), a slider (908), a scraper shell (909), a guide groove (910), a reset spring (911), a guide block (912), and a scraper plate (913). The support sleeve (901) is fixedly connected to one side of the inner wall of the inner tank (7). The bottom end of the inner tank (7) is fixedly connected with a discharge port (10).

2. The mixing device for processing waste plastics into plastic products according to claim 1, characterized in that: The thermal circulation structure (6) includes an outlet check valve (601), an outlet pipe (602), an inlet check valve (603), an inlet pipe (604), a turntable (605), a connecting rod (606), a cylinder (607), a piston rod (608), a piston body (609), a connecting sleeve (610), a first check valve (611), a second check valve (612), a filter cartridge (613), an inlet (614), an outlet (615), and a turbine fan (606). 616) and drain plug (617), the vent check valve (601) is fixedly connected to the top of the inner tank (7), the top of the vent check valve (601) is fixedly connected to the vent pipe (602), the bottom of the inner tank (7) is fixedly connected to the inlet check valve (603), the bottom of the inlet check valve (603) is fixedly connected to the inlet pipe (604), a turntable (605) is provided at the middle position on one side of the outer tank (3), the turntable (605) is fixedly connected to the drain plug (617), the vent check valve (601) is fixedly connected to the top of the inner tank (7), the top of the vent check valve (601) is fixedly connected to the vent pipe (602 ... inner tank (7) is fixedly connected to the inlet check valve (603), the bottom of the inlet check valve (604) is fixedly connected to the inlet pipe (604), a turntable (605) is provided at the middle position on one side of the outer tank (3), the turntable (605) is fixedly connected to the drain plug (617), the vent check valve (605) is fixedly connected to the drain plug (604), the bottom of the inlet check valve (605) is fixedly connected to the inlet pipe (604), the bottom of the inlet check valve (605) is fixedly connected to the inlet pipe (604), the top of the 5) A connecting rod (606) is rotatably connected to one side of the turntable (605). A cylinder (607) is provided below the turntable (605). A piston rod (608) passes through the inside of the top of the cylinder (607). A piston body (609) is fixedly connected to the bottom end of the piston rod (608). A connecting sleeve (610) is fixedly connected to the top of the outer side of the piston rod (608). A first one-way valve (611) is fixedly connected to the bottom of one side of the cylinder (607). A second one-way valve (612) is fixedly connected to the bottom of the other side of the cylinder (607). A filter cartridge (613) is provided on one side of the cylinder (607). An air inlet (614) is fixedly connected to one end of the filter cartridge (613). An air outlet (615) is provided below the air inlet (614). A turbine fan (616) is rotatably connected to the top of the inside of the filter cartridge (613). A drain plug (617) is installed inside the bottom of the filter cartridge (613).

3. The mixing device for processing waste plastics into plastic products according to claim 2, characterized in that: The exhaust check valve (601) and the intake check valve (603) are fixedly connected to several of the two ends of the inner tank (7), and the several exhaust check valves (601) and the intake check valves (603) are distributed at equal intervals at both ends of the inner tank (7).

4. A mixing device for processing waste plastics into plastic products according to claim 2, characterized in that: The air outlet pipe (602) is internally connected to the second one-way valve (612), and the connecting rod (606) and the top of the piston rod (608) are hinged.

5. A mixing device for processing waste plastics into plastic products according to claim 2, characterized in that: The intake pipe (604) is internally connected to the first one-way valve (611), and the cylinder (607) and piston rod (608) have a sliding structure.

6. A mixing device for processing waste plastics into plastic products according to claim 2, characterized in that: One side of the turntable (605) is rotating with one side of the outer tank (3), and the top of the inside of the filter cartridge (613) is rotating with the top of the turbine fan (616).

7. A mixing device for processing waste plastics into plastic products according to claim 1, characterized in that: The inner wall of the inner tank (7) is provided with a spiral groove (902). A transmission rod (903) is rotatably connected to the middle position of the two sides inside the inner tank (7). The transmission rod (903) has a sliding groove (904) inside both ends. A sliding sleeve (905) is sleeved on the outer side of the transmission rod (903). A stirring plate (906) is fixedly connected to the outer side of the sliding sleeve (905). A ring sleeve (907) is fixedly connected to the outer side of the stirring plate (906). A slider (908) is fixedly connected to both ends of the ring sleeve (907). A scraper shell (909) is fixedly connected to the outer side of the ring sleeve (907). A guide groove (910) is provided inside the scraper shell (909). A return spring (911) is provided at the bottom end of the guide groove (910). A guide block (912) is slidably connected to the top end of the guide groove (910). A scraper plate (913) is fixedly connected to the top end of the guide block (912).

8. A mixing device for processing waste plastics into plastic products according to claim 7, characterized in that: The interior of the support sleeve (901) and one side of the outer wall of the transmission rod (903) are in a rotating structure, and the spiral groove (902) and the slider (908) are in a sliding structure.

9. A mixing device for processing waste plastics into plastic products according to claim 7, characterized in that: The sliding sleeve (905) is in a sliding structure with the transmission rod (903) through the sliding groove (904), and the stirring plate (906) is distributed in a ring on the outside of the sliding sleeve (905).

10. A mixing device for processing waste plastics into plastic products according to claim 7, characterized in that: The scraper shell (909) is distributed in a ring on the outer wall of the ring sleeve (907), and the scraper plate (913) is distributed at equal intervals inside the top of the scraper shell (909).

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