Mixing device capable of degrading plastic particles
By combining a servo motor-driven stirring system with opening and closing components and reciprocating components, the problem of local agglomeration of biological fillers in biodegradable plastic granule mixing devices is solved, achieving uniform dispersion of biological fillers and improving mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI YUNLAI PLASTIC TECH
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-19
AI Technical Summary
Existing biodegradable plastic granule mixing devices are not very effective, and the addition of biological fillers can easily lead to the formation of local agglomerates, resulting in brittleness or uneven degradation rates in the products.
The stirring system, driven by a servo motor, combines opening and closing components with reciprocating components. The filling rate is controlled by a cylinder, and the filling is evenly distributed through reciprocating motion, achieving thorough mixing using the stirring paddle.
This method achieves uniform dispersion of biological fillers, improves mixing effect, and ensures uniformity of products and consistency of degradation rate.
Smart Images

Figure CN224255770U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic granule mixing technology, specifically a mixing device for biodegradable plastic granules. Background Technology
[0002] Biodegradable plastic granules are an environmentally friendly material. Their advantage lies in their ability to gradually decompose through the action of microorganisms in the natural environment, reducing white pollution. Mixing is the process of uniformly mixing the matrix resin with biological fillers such as starch and cellulose, as well as compatibilizers and additives.
[0003] Existing biodegradable plastic granule mixing devices still have the following shortcomings: the existing biodegradable plastic granule mixing devices have low efficiency. When adding biological fillers, the existing mixing devices often add them all at once through the feed inlet. The concentrated addition of fillers can easily form local agglomerates, and even if the mixture is stirred, it is difficult to disperse them quickly, resulting in "brittle points" or uneven degradation rates in the products. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a mixing device for biodegradable plastic granules, which solves the problem of low efficiency of existing mixing devices for biodegradable plastic granules.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for biodegradable plastic granules, comprising a base plate, a support column fixedly connected to the top of the base plate, a trough rotatably connected between a pair of support columns, a servo motor fixedly connected to one side of the trough, the output end of the servo motor passing through the trough and rotatably connected thereto, a stirring shaft coaxially fixedly connected to the output end of the servo motor, a stirring paddle coaxially fixedly connected to the stirring shaft, one end of the stirring shaft passing through the trough and rotatably connected thereto, a pulley coaxially fixedly connected to one end of the stirring shaft, a base material inlet and a filler material inlet respectively connected to the top of the trough, a hopper provided at the top of the filler material inlet, an opening and closing assembly provided on the hopper, and a reciprocating assembly provided on one side of the filler material inlet.
[0006] As a further embodiment of this utility model: the opening and closing assembly includes a cylinder, the cylinder is fixedly connected to the top of the hopper, the output end of the cylinder passes through the hopper and is slidably connected thereto, the output end of the cylinder is fixedly connected to a lifting rod, and the bottom of the lifting rod is fixedly connected to a piston block.
[0007] As a further embodiment of this utility model: the reciprocating assembly includes a housing, the housing is fixedly connected to one side of the packing inlet, a reciprocating screw is rotatably connected to the housing, a nut is threaded onto the reciprocating screw, a second pulley is coaxially fixedly connected to one end of the reciprocating screw, and a belt is sleeved between the second pulley and the first pulley.
[0008] As a further embodiment of this utility model: a pair of connecting blocks are fixedly connected to the side of the packing inlet away from the shell, a guide rod is fixedly connected between the pair of connecting blocks, and a slip ring is slidably connected to the guide rod.
[0009] As a further embodiment of this utility model: a pair of connecting rods are fixedly connected to the hopper, one end of one of the connecting rods is fixedly connected to a slip ring, and one end of the other connecting rod is fixedly connected to a nut. Through grooves are provided on both sides of the filler inlet, and the through grooves are adapted to the corresponding connecting rods.
[0010] As a further embodiment of this utility model: an opening and closing door is provided on one side of the trough, and a pair of connecting rods are fixedly connected to the other side of the trough. Each connecting rod has a movable groove. A hydraulic cylinder is fixedly connected to the top of the bottom plate. A cylindrical block is fixedly connected to the output end of the hydraulic cylinder. Movable rods are fixedly connected to both sides of the cylindrical block. The movable rods are adapted to the movable grooves.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This utility model is equipped with a hopper, an opening and closing assembly, and a reciprocating assembly. The filler is placed in the hopper, and the piston block can block the discharge pipe of the hopper. The cylinder in the opening and closing assembly can drive the piston block to rise through the lifting rod, which can control the size of the gap between the piston block and the inner wall of the discharge pipe, thereby controlling the addition rate of the filler. This allows the filler to be fully mixed with the matrix granules after entering the tank. At the same time, the reciprocating assembly can drive the hopper to move back and forth, so that the filler is evenly distributed in different areas of the tank, improving the mixing effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the entire utility model. Figure 1 ;
[0014] Figure 2 This is a schematic cross-sectional view of the tank body of this utility model;
[0015] Figure 3 This is a cross-sectional schematic diagram of the opening and closing component and the hopper of this utility model;
[0016] Figure 4 This is a schematic cross-sectional view of the packing inlet, hopper, and shell of this utility model;
[0017] Figure 5 This is a schematic diagram of the packing inlet, hopper, guide rod, and slip ring of this utility model;
[0018] Figure 6 This is a schematic diagram of the connecting rod 2, hydraulic cylinder, cylindrical block and movable rod of this utility model.
[0019] In the diagram: 1. Base plate; 2. Support column; 3. Tank; 4. Servo motor; 5. Agitator; 6. Belt pulley one; 7. Base material inlet; 8. Packing material inlet; 9. Hopper; 10. Cylinder; 11. Lifting rod; 12. Piston block; 13. Housing; 14. Reciprocating screw; 15. Nut; 16. Belt pulley two; 17. Guide rod; 18. Slip ring; 19. Connecting rod one; 20. Opening / closing door; 21. Connecting rod two; 22. Hydraulic cylinder; 23. Cylindrical block; 24. Movable rod. Detailed Implementation
[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0021] like Figures 1-6 As shown, this utility model provides a technical solution:
[0022] A mixing device for biodegradable plastic granules includes a base plate 1, with support columns 2 fixedly connected to the top of the base plate 1. A tank 3 is rotatably connected between a pair of support columns 2. A servo motor 4 is fixedly connected to one side of the tank 3. The output end of the servo motor 4 passes through the tank 3 and is rotatably connected to it. A stirring shaft is coaxially fixedly connected to the output end of the servo motor 4. A stirring paddle 5 is coaxially fixedly connected to the stirring shaft. One end of the stirring shaft passes through the tank 3 and is rotatably connected to it. A pulley 6 is coaxially fixedly connected to one end of the stirring shaft. A base material inlet 7 and a filler material inlet 8 are respectively connected to the top of the tank 3. A hopper is provided at the top of the filler material inlet 8. 9. The hopper 9 is equipped with an opening and closing component, and a reciprocating component is provided on one side of the filler inlet 8. The matrix granules enter the tank 3 through the matrix inlet 7. The filler is placed in the hopper 9. The servo motor 4 is started. The output end of the servo motor 4 drives the stirring shaft to rotate. The stirring shaft drives the stirring paddle 5 and the pulley 6 to rotate together. The pulley 6 drives the reciprocating component to work. The reciprocating component can drive the hopper 6 to move back and forth. At the same time, the opening and closing component works to control the filling rate. The filler is evenly distributed in different areas of the tank 3 through the filler inlet 8 to improve the mixing effect. The stirring paddle 5 can fully mix the filler and the matrix granules.
[0023] The opening and closing assembly includes a cylinder 10, which is fixedly connected to the top of the hopper 9. The output end of the cylinder 10 passes through the hopper 9 and is slidably connected to it. A lifting rod 11 is fixedly connected to the output end of the cylinder 10, and a piston block 12 is fixedly connected to the bottom of the lifting rod 11. The piston block 12 can block the discharge pipe of the hopper 9. When the cylinder 10 is activated, the output end of the cylinder 10 drives the piston block 12 to rise through the lifting rod 11. The size of the gap between the piston block 12 and the inner wall of the discharge pipe of the hopper 9 can be controlled, thereby controlling the filling rate.
[0024] The reciprocating assembly includes a housing 13, which is fixedly connected to one side of the packing inlet 8. A reciprocating screw 14 is rotatably connected to the housing 13, and a nut 15 is threaded onto the reciprocating screw 14. A second pulley 16 is coaxially fixedly connected to one end of the reciprocating screw 14, and a belt is fitted between the second pulley 16 and the first pulley 6. A pair of connecting blocks are fixedly connected to the side of the packing inlet 8 away from the housing 13, and a guide rod 17 is fixedly connected between the pair of connecting blocks. A slip ring 18 is slidably connected to the guide rod 17. A pair of connecting rods 19 are fixedly connected to the hopper 9, one of which... One end of one connecting rod 19 is fixedly connected to the slip ring 18, and one end of the other connecting rod 19 is fixedly connected to the nut 15. Both sides of the filler inlet 8 are provided with through grooves, which are adapted to the corresponding connecting rod 19. The pulley 6 drives the pulley 16 to rotate through the belt. The pulley 16 drives the reciprocating screw 14 to rotate, so that the nut 15 moves back and forth along the reciprocating screw 14. The nut 15 drives the hopper 9 to move together through the corresponding connecting rod 19. The hopper 9 drives the slip ring 18 to slide on the guide rod 17 through the corresponding connecting rod 19.
[0025] A door 20 is provided on one side of the tank body 3, and a pair of connecting rods 21 are fixedly connected to the other side of the tank body 3. Each connecting rod 21 has a movable groove. A hydraulic cylinder 22 is fixedly connected to the top of the bottom plate 1. A cylindrical block 23 is fixedly connected to the output end of the hydraulic cylinder 22. Movable rods 24 are fixedly connected to both sides of the cylindrical block 23. The movable rods 24 are adapted to the movable grooves. After the mixing is completed, the door 20 is opened and the hydraulic cylinder 22 is started. The output end of the hydraulic cylinder 22 drives the movable rods 24 to rise through the cylindrical block 23. The movable rods 24 drive the connecting rods 21 to move through the movable grooves on the connecting rods 21. The connecting rods 21 drive the tank body 3 to rotate between a pair of support columns 2, so that the tank body 3 tilts, which facilitates unloading.
[0026] The working principle of this utility model is as follows:
[0027] The matrix granules enter the tank 3 through the matrix feed port 7. The filler is placed in the hopper 9. The servo motor 4 is started. The output of the servo motor 4 drives the stirring shaft to rotate. The stirring shaft drives the stirring paddle 5 and the pulley 6 to rotate together. The pulley 6 drives the pulley 16 to rotate through the belt. The pulley 16 drives the reciprocating screw 14 to rotate, so that the nut 15 moves back and forth along the reciprocating screw 14. The nut 15 drives the hopper 9 to move together through the corresponding connecting rod 19. The hopper 9 drives the slip ring 18 to slide on the guide rod 17 through the corresponding connecting rod 19.
[0028] At the same time, the cylinder 10 is started. The output end of the cylinder 10 drives the piston block 12 to rise through the lifting rod 11. This can control the size of the gap between the piston block 12 and the inner wall of the discharge pipe of the hopper 9, thereby controlling the addition rate of the filler. The hopper 6 reciprocates, so that the filler is evenly spread in different areas of the tank 3 through the filler inlet 8, improving the mixing effect.
[0029] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A mixing device for biodegradable plastic granules, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top of a support column (2), and a trough (3) is rotatably connected between a pair of support columns (2). A servo motor (4) is fixedly connected to one side of the trough (3). The output end of the servo motor (4) passes through the trough (3) and is rotatably connected to it. A stirring shaft is coaxially fixedly connected to the output end of the servo motor (4). A stirring paddle (5) is coaxially fixedly connected to the stirring shaft. One end of the stirring shaft passes through the trough (3) and is rotatably connected to it. A pulley (6) is coaxially fixedly connected to one end of the stirring shaft. The top of the trough (3) is respectively connected to a base inlet (7) and a filler inlet (8). A hopper (9) is provided on the top of the filler inlet (8). An opening and closing component is provided on the hopper (9). A reciprocating component is provided on one side of the filler inlet (8).
2. The mixing device for biodegradable plastic granules according to claim 1, characterized in that: The opening and closing assembly includes a cylinder (10), which is fixedly connected to the top of the hopper (9). The output end of the cylinder (10) passes through the hopper (9) and is slidably connected thereto. A lifting rod (11) is fixedly connected to the output end of the cylinder (10), and a piston block (12) is fixedly connected to the bottom of the lifting rod (11).
3. The mixing device for biodegradable plastic granules according to claim 2, characterized in that: The reciprocating assembly includes a housing (13), which is fixedly connected to one side of the packing inlet (8). A reciprocating screw (14) is rotatably connected to the housing (13), and a nut (15) is threaded onto the reciprocating screw (14). A pulley two (16) is coaxially fixedly connected to one end of the reciprocating screw (14), and a belt is sleeved between the pulley two (16) and the pulley one (6).
4. The mixing device for biodegradable plastic granules according to claim 3, characterized in that: A pair of connecting blocks are fixedly connected to the side of the filler inlet (8) away from the shell (13), and a guide rod (17) is fixedly connected between the pair of connecting blocks. A slip ring (18) is slidably connected on the guide rod (17).
5. The mixing device for biodegradable plastic granules according to claim 4, characterized in that: A pair of connecting rods (19) are fixedly connected to the hopper (9). One end of one of the connecting rods (19) is fixedly connected to the slip ring (18), and one end of the other connecting rod (19) is fixedly connected to the nut (15). Through grooves are provided on both sides of the filler inlet (8), and the through grooves are adapted to the corresponding connecting rods (19).
6. The mixing device for biodegradable plastic granules according to claim 5, characterized in that: A door (20) is provided on one side of the trough (3), and a pair of connecting rods (21) are fixedly connected to the other side of the trough (3). Each connecting rod (21) has a movable groove. A hydraulic cylinder (22) is fixedly connected to the top of the bottom plate (1). A cylindrical block (23) is fixedly connected to the output end of the hydraulic cylinder (22). Movable rods (24) are fixedly connected to both sides of the cylindrical block (23). The movable rods (24) are adapted to the movable grooves.