Process and device for extruding and mixing leftover materials of biodegradable materials

Abstract

The invention relates to the technical field of biodegradable processing, in particular to a biodegradable material leftover material extruding and mixing process and device. The device comprises a stirring hopper, and two feeding ports are formed in the upper end of the stirring hopper and used for adding rim charges and auxiliary materials respectively; according to the biodegradable material leftover material extruding and mixing technology and device, the quantitative discharging mechanism and the blocking mechanism interact, the effects of quantitative discharging and dynamic discharging opening blocking are achieved, and when a quantitative bin moves, a power rod connected with the quantitative bin drives an auxiliary rod and a shielding piece to move; the linkage eliminates the time difference between opening and closing of a valve and blanking operation in traditional blanking, and can timely and accurately perform quantitative blanking on uniformly stirred materials, so that the time and quantity of the materials flowing out of the stirring hopper are accurately controlled, the production efficiency is improved, the requirement of manual intervention is reduced, and meanwhile, the production cost is reduced. The quantitative discharging mechanism and the stirring mechanism work cooperatively, and a two-way stirring mechanism is formed by an inner ring stirring rod and an outer ring stirring rod.

Description

Technical Field

[0001] The present invention relates to the technical field of biodegradable processing, and specifically, to an extrusion mixing process and device for biodegradable material scraps. Background Art

[0002] With the enhancement of environmental awareness, biodegradable materials have been widely used in many fields. During the production process of biodegradable materials, a large amount of scraps will be generated. If these scraps are directly discarded, it will not only cause waste of resources, but also cause certain pressure on the environment.

[0003] However, for the recycling of the plastic materials of biodegradable material scraps, the recovered biodegradable material scraps are usually reused through the traditional mixing and extrusion process. However, currently, when stirring the materials, the conventional method is to use a unidirectional stirring rod. However, this method can only stir the materials in a single direction, making it difficult for the edge materials and the materials to be fully and evenly mixed, and then resulting in unstable quality of the recycled biodegradable materials. In the conventional process of material feeding, generally, the valve of the material feeding port is first opened by means of a power source, and then another power source is started to perform the quantitative feeding operation of the materials. This way of driving different power sources successively is not easy to avoid causing a time delay between the feeding operation and the opening and closing of the valve. Eventually, it is difficult to timely and accurately perform the quantitative feeding of the fully stirred and evenly mixed materials at the best time, affecting the production efficiency and product quality. In view of this, we propose an extrusion mixing process and device for biodegradable material scraps. Summary of the Invention

[0004] The purpose of the present invention is to provide an extrusion mixing process and device for biodegradable material scraps to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides an extrusion mixing device for biodegradable material scraps, including a stirring hopper. Two feeding ports are opened at the upper end of the stirring hopper, which are respectively used for adding edge materials and auxiliary materials. A support frame is fixedly connected to the bottom of one end of the stirring hopper, and a stirring mechanism for stirring the materials in all directions is arranged inside the stirring hopper. A quantitative feeding mechanism is installed below the stirring hopper. After the materials are stirred bidirectionally by the stirring mechanism, they are conveyed to the quantitative feeding mechanism. A blocking mechanism is arranged on one side of the quantitative feeding mechanism to block the discharge port of the stirring hopper. When the quantitative feeding mechanism moves, the generated moving force pushes the blocking mechanism to open and close to control the outflow of the materials.

[0006] As a further improvement of the technical solution, a fixed cover is fixedly installed at one end of the mixing hopper, and a servo motor is fixedly installed on the top of the fixed cover. The output end of the servo motor is spline-connected with a bevel gear A, and a bevel gear B and a bevel gear C are meshed and connected to the outer edge of the bevel gear A.

[0007] The other end of the mixing hopper is provided with a feeding mechanism. The feeding mechanism includes a feeding pipe that is connected to the mixing hopper in a through manner. The input end of the feeding pipe is communicated with a pumping pump, and the input end of the pumping pump is communicated with a storage tank. An inlet is arranged at the top of the storage tank.

[0008] A groove is formed on one side of the support frame opposite to the quantitative feeding mechanism to provide space for the movement of the quantitative feeding mechanism. An extruder is fixedly installed on the bottom surface of the quantitative feeding mechanism, and the extruder is connected to the support frame in a through manner.

[0009] The mixing mechanism includes an inner rod fixedly connected to the bevel gear B. Inner ring mixing rods for mixing materials are fixedly connected to the surface of the inner rod; The outer wall of the top end of the inner rod is rotatably connected with an outer rod. One end of the outer rod is fixedly connected to the bevel gear C, and one end of the outer rod close to the fixed cover is rotatably connected to the fixed cover. A rotating plate is fixedly connected to one end of the outer rod close to the inner ring mixing rods, and outer ring mixing rods are fixedly connected to the bottom surface of the rotating plate. The inner ring mixing rods and the outer ring mixing rods cooperate to form a two-way mixing.

[0010] The quantitative feeding mechanism includes a flow pipe located below the discharge port of the mixing hopper. An electric slide rail is fixedly installed on the bottom surface of the flow pipe, and a stabilizing frame is fixedly connected to the top surface of one end of the electric slide rail. The top surface of the stabilizing frame is connected to the mixing hopper; An electric slider is slidably connected inside the electric slide rail, and a quantitative bin is fixedly connected to the surface of the electric slider. The left side of the quantitative bin is a cavity for quantifying materials, and the right side of the quantitative bin is a fixed flat plate for blocking the outlet of the flow pipe when the quantitative bin discharges materials. A movable plate is hinged to the bottom surface of one side of the cavity of the quantitative bin for opening and closing the cavity of the quantitative bin, and a straight plate is slidably connected to the bottom surface of the movable plate for supporting the electric slide rail.

[0011] The blocking mechanism includes a power rod fixedly connected to the fixed flat plate on the right side of the quantitative bin. An auxiliary rod is fixedly installed on the top of the power rod. A shielding piece is fixedly connected to one end of the auxiliary rod for blocking the discharge port of the mixing hopper. A moving port adapted to the auxiliary rod is formed on the surface of the fixed cover for the movement of the auxiliary rod.

[0012] The second object of the present invention is to provide a biodegradable material scrap extrusion and mixing process, including the following method steps: Step 1: After putting the recycled biodegradable material scraps into the feeding mechanism, the biodegradable scraps are fed into the mixing hopper through the feeding mechanism. Step 2: Turn on the mixing switch on the mixing hopper, adjust the speed to 100 revolutions per minute, and mix for 2 minutes. Use the mixing mechanism in the mixing hopper to mix the materials bidirectionally, so that the materials are fully mixed. Step 3: Reduce the mixing speed to 50 revolutions per minute, add the auxiliary materials at another feeding port, then adjust the speed to 100 revolutions per minute, mix for 5 minutes, and use the mixing mechanism to mix the materials again. Adjust the speed to 100 revolutions per minute and mix for 5 minutes. Step 4: Start the quantitative feeding mechanism. Drive the movement of the blocking mechanism through the movement of the quantitative feeding mechanism to dynamically block the discharge port of the mixing hopper, thereby realizing quantitative feeding. Feed the materials into the extruder. Finally, complete the extrusion work through the extruder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In this biodegradable material scrap extrusion and mixing process and device, the quantitative feeding mechanism and the blocking mechanism interact with each other to realize the functions of quantitative feeding and dynamically blocking the discharge port. When the quantitative bin moves, the power rod connected to it drives the auxiliary rod and the shielding piece to move. This linkage method eliminates the time difference between the opening and closing of the valve and the feeding operation in traditional feeding, and can timely and accurately conduct quantitative feeding on the uniformly mixed materials, thereby precisely controlling the time and amount of the materials flowing out of the mixing hopper, improving production efficiency, and reducing the need for manual intervention; At the same time, the quantitative feeding mechanism and the mixing mechanism work together. On the one hand, through the bidirectional mixing mechanism composed of the inner ring mixing rod and the outer ring mixing rod, all-round and uniform mixing of the materials is realized. This not only improves the mixing efficiency but also ensures the quality of material mixing, solving the problem of uneven materials that may be caused by traditional single-direction mixing; On the other hand, the mixing mechanism efficiently mixes the materials. After the materials are fully and evenly mixed, they enter the quantitative feeding mechanism for precise quantitative feeding. The efficient mixing ensures the quality of material mixing, making the component ratio of each portion of the quantitatively fed materials stable. The cooperation of the two not only improves production efficiency but also ensures the stability of the quality of the final product, avoiding product quality fluctuations caused by uneven material mixing or inaccurate feeding, which is beneficial to the continuous and stable operation of the biodegradable material scrap extrusion and mixing process and improves the high-quality production of recycling.

[0014] In addition to the purposes, features, and advantages described above, the present invention has other purposes, features, and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure assembly schematic diagram of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of location A in Figure 3 Schematic diagram of the overall structure cutting of the present invention; Figure 4 Cross-sectional view of the overall structure of the present invention; Figure 5 Schematic diagram of the stirring mechanism of the present invention; Figure 6 Schematic diagram of the plugging mechanism and the quantitative feeding mechanism of the present invention; Figure 7 Feeding demonstration diagram of the quantitative feeding mechanism of the present invention; Figure 8 Schematic diagram of the cooperation relationship between the quantitative feeding mechanism and the plugging mechanism of the present invention.

[0016] The meanings of each label in the figure are as follows: 100, stirring hopper; 101, feed inlet; 102, servo motor; 103, bevel gear B; 104, bevel gear C; 200, support frame; 300, stirring mechanism; 301, inner rod; 302, inner ring stirring rod; 303, outer rod; 304, rotating plate; 305, outer ring stirring rod; 400, quantitative feeding mechanism; 401, flow pipe; 402, electric slide rail; 403, quantitative bin; 404, movable plate; 500, plugging mechanism; 501, power rod; 502, auxiliary rod; 503, shielding piece; 600, feeding mechanism; 601, storage tank; 700, extruder. Detailed implementation manners

[0017] 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 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 in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0018] Please refer to Figure 1 - Figure 8As shown in the figure, this embodiment provides a biodegradable material scrap extrusion and mixing process and device, including a stirring hopper 100. Two feeding ports 101 are opened at the upper end of the stirring hopper 100, which are respectively used for adding side materials and auxiliary materials. A support frame 200 is fixedly connected to the bottom of one end of the stirring hopper 100, and a stirring mechanism 300 for stirring materials in all directions is arranged inside the stirring hopper 100; A quantitative feeding mechanism 400 is installed below the stirring hopper 100. After the materials are stirred bidirectionally by the stirring mechanism 300, they are transported to the quantitative feeding mechanism 400. A blocking mechanism 500 is arranged on one side of the quantitative feeding mechanism 400, which is used to block the discharge port of the stirring hopper 100. When the quantitative feeding mechanism 400 moves, the generated moving force pushes the blocking mechanism 500 to open and close to control the outflow of materials.

[0019] When extruding and mixing the biodegradable material scraps in the present invention, on the one hand, when stirring the materials, the conventional method is to use a unidirectional stirring rod. However, this method can only stir the materials in a single direction, resulting in difficulty in fully mixing the side materials and the materials evenly, and then leading to unstable quality of the recycled biodegradable materials. Therefore, first, through the bidirectional stirring mechanism composed of the inner ring stirring rod 302 and the outer ring stirring rod 305, all-round and uniform stirring of the materials is realized. This not only improves the stirring efficiency but also ensures the quality of material mixing, solving the problem of uneven materials that may be caused by traditional single-direction stirring; Second, the stirring mechanism 300 stirs the materials efficiently. After the materials are fully mixed evenly, they enter the quantitative feeding mechanism 400 for accurate quantitative feeding. The efficient stirring ensures the quality of material mixing, making the component ratio of each portion of the quantitatively fed materials stable. The cooperation of these two aspects not only improves the production efficiency but also ensures the stability of the quality of the final product, avoiding product quality fluctuations caused by uneven material mixing or inaccurate feeding, which is beneficial to the continuous, stable and high-quality recycling production of the biodegradable material scrap extrusion and mixing process; On the other hand, in terms of quantitative feeding, the traditional device lacks an accurate quantitative control mechanism. The material feeding amount is either too much, causing waste of raw materials and increasing production costs; or too little, resulting in the interruption of the production process and reducing production efficiency. Therefore, through the setting of the quantitative feeding structure, the quantitative feeding structure quantitatively feeds the materials during the moving process, realizing accurate quantitative feeding, avoiding material waste and improving production efficiency; Moreover, in the conventional process of material feeding, generally, the valve of the material feeding port is first opened by means of a power source, and then another power source is started to perform the quantitative feeding operation of the material. This way of driving different power sources successively is not easy to avoid causing a time delay between the feeding operation and the opening and closing of the valve. Eventually, it is difficult to timely and accurately perform the quantitative feeding of the well-stirred and uniform material at the best time, which affects the production efficiency and product quality. Therefore, the quantitative feeding mechanism 400 and the blocking mechanism 500 interact with each other to achieve the functions of quantitative feeding and dynamically blocking the discharge port. When the quantitative bin 403 moves, the power rod 501 connected to it drives the auxiliary rod 502 and the shielding piece 503 to move. This linkage method eliminates the time difference between the valve opening and closing and the feeding operation in traditional feeding, and can timely and accurately perform the quantitative feeding of the well-stirred material, thereby precisely controlling the time and amount of the material flowing out of the mixing hopper 100, improving the production efficiency, and reducing the need for manual intervention.

[0020] On this basis, the specific structure is disclosed in detail: To achieve the stable rotation of the mixing mechanism 300, as Figure 2 - Figure 5 shown, a fixed cover is fixedly installed at one end of the mixing hopper 100, and a servo motor 102 is fixedly installed on the top of the fixed cover. The output end of the servo motor 102 is spline-connected with a bevel gear A, and a bevel gear B103 and a bevel gear C104 are meshed at the outer edge of the bevel gear A. (Among them, one end of the bevel gear B103 away from the bevel gear C104 is rotatably connected with a bevel gear support to ensure the stability of the bevel gear during rotation). Therefore, the servo motor 102 outputs power, and the bevel gear A is spline-connected. The spline connection can ensure stable and efficient power transmission, reduce energy loss. The bevel gear A synchronously distributes the power to the meshed bevel gear B103 and bevel gear C104, achieving the operation of multiple components driven by one power source, simplifying the power structure of the device, improving the energy utilization rate, and reducing the equipment cost and maintenance difficulty compared with multiple independent power sources.

[0021] To achieve feeding, as Figure 1 - Figure 4As shown in the figure, a feeding mechanism 600 is provided at the other end of the mixing hopper 100. The feeding mechanism 600 includes a feeding pipe that is connected to the mixing hopper 100 in a through manner. The input end of the feeding pipe is connected to a pumping pump, and the input end of the pumping pump is connected to a storage tank 601. An inlet is provided at the top of the storage tank 601. A groove is provided on one side of the support frame 200 opposite to the quantitative feeding mechanism 400 to provide space for the movement of the quantitative feeding mechanism 400. An extruder 700 is fixedly installed on the bottom surface of the quantitative feeding mechanism 400, and the extruder 700 is connected to the support frame 200 in a through manner. Therefore, the material in the storage tank 601 is transported to the mixing hopper 100 through the feeding pipe by the pumping pump, which is more stable and efficient than manual feeding and can continuously provide materials for the mixing process to ensure the continuity of the mixing operation. The inlet at the top of the storage tank 601 facilitates the replenishment and storage of materials.

[0022] To achieve two-way mixing of materials, as Figure 3 - Figure 5 shown in the figure, the mixing mechanism 300 includes an inner rod 301 fixedly connected to the bevel gear B103. An inner ring mixing rod 302 for mixing materials is fixedly connected to the surface of the inner rod 301; the outer wall of the top end of the inner rod 301 is rotatably connected to an outer rod 303. One end of the outer rod 303 is fixedly connected to the bevel gear C104, and one end of the outer rod 303 close to the fixed cover is rotatably connected to the fixed cover. A rotating plate 304 is fixedly connected to one end of the outer rod 303 close to the inner ring mixing rod 302, and an outer ring mixing rod 305 is fixedly connected to the bottom surface of the rotating plate 304. The inner ring mixing rod 302 and the outer ring mixing rod 305 cooperate to form two-way mixing. Therefore, through the cooperation of the inner ring mixing rod 302 and the outer ring mixing rod 305 to form two-way mixing, the biodegradable material scraps and auxiliary materials in the mixing hopper 100 are fully turned under the action of forces in different directions. The inner rod 301 and the outer rod 303 rotate in opposite directions, driving the inner ring mixing rod 302 and the outer ring mixing rod 305 to mix the materials from different radius positions respectively, avoiding dead corners in the mixing of materials.

[0023] To achieve quantitative feeding of materials, as Figure 6 - Figure 8As shown in the figure, the quantitative feeding mechanism 400 includes a flow pipe 401 located below the discharge port of the mixing hopper 100. An electric slide rail 402 is fixedly installed on the bottom surface of the flow pipe 401, and a stabilizing frame is fixedly connected to the top surface of one end of the electric slide rail 402. The top surface of the stabilizing frame is connected to the mixing hopper 100. An electric slider is slidably connected inside the electric slide rail 402, and a quantitative bin 403 is fixedly connected to the surface of the electric slider. The left side of the quantitative bin 403 is a cavity for quantifying materials, and the right side of the quantitative bin 403 is a fixed flat plate for blocking the outlet of the flow pipe 401 when the quantitative bin 403 discharges materials. A movable plate 404 is hinged to the bottom surface on one side of the cavity of the quantitative bin 403 for opening and closing the cavity of the quantitative bin 403, and a straight plate is slidably connected to the bottom surface of the movable plate 404 for supporting the electric slide rail 402. Therefore, by moving the electric slider on the electric slide rail 402, the amount of materials received by the quantitative bin 403 can be accurately adjusted according to production requirements. This precise quantification method avoids the problems of too much or too little materials in the traditional feeding method, effectively reduces raw material waste, and lowers production costs.

[0024] To achieve the opening and closing of the discharge port of the mixing hopper 100, as Figure 4 shown, the blocking mechanism 500 includes a power rod 501 fixedly connected to the fixed flat plate on the right side of the quantitative bin 403. An auxiliary rod 502 is fixedly installed at the top of the power rod 501. One end of the auxiliary rod 502 is fixedly connected to a shielding piece 503 for blocking the discharge port of the mixing hopper 100. A moving port adapted to the auxiliary rod 502 is provided on the surface of the fixed cover for the movement of the auxiliary rod 502. Among them, the number of the shielding pieces 503 is set to two. When the quantitative feeding mechanism 400 is moving, the shielding piece 503 can open and close the discharge port of the mixing hopper 100. When the flow pipe 401, the quantitative bin 403, and the discharge port of the mixing hopper 100 are not in the same straight line, the shielding piece 503 will block the discharge port of the mixing hopper 100. When the flow pipe 401, the quantitative bin 403, and the discharge port of the mixing hopper 100 are in the same straight line, the discharge port of the mixing hopper 100 is opened, and quantitative feeding can be carried out (when the quantitative bin 403 is located on the right side of the flow pipe 401, the shielding piece 503 on the left side of the flow pipe 401 will block the discharge port of the mixing hopper 100. When the quantitative bin 403 is located on the left side of the flow pipe 401, the shielding piece 503 on the right side of the flow pipe 401 will block the discharge port of the mixing hopper 100).

[0025] Among them: the auxiliary materials are 1 - 3% antioxidant, 2 - 5% dispersant, and 1 - 3% titanium dioxide.

[0026] Preferably, the dispersant is one or more of epoxy soybean oil, stearic acid, and PE wax.

[0027] The antioxidant is one or a compound of two of aromatic amine antioxidants and hindered phenol antioxidants.

[0028] Sample 1: 1% antioxidant, 2% dispersant, 3% titanium dioxide Sample 2: 3% antioxidant, 5% dispersant, 1% titanium dioxide Sample 3: 2% antioxidant, 3% dispersant, 2% titanium dioxide The inspection data of the products manufactured are detected according to the national standard QB / T4012 - 2010, and the test results are as follows:

[0029] The second object of the present invention is to provide an extrusion mixing process for biodegradable material scraps, including the following method steps: First step: After putting the recovered biodegradable material scraps into the feeding mechanism 600, the biodegradable scraps are fed into the stirring hopper 100 through the feeding mechanism 600; Second step: Turn on the stirring switch on the stirring hopper 100, adjust the speed to 100 revolutions per minute, and stir for 2 minutes. Use the stirring mechanism 300 in the stirring hopper 100 to stir the materials bidirectionally, so that the materials are fully mixed; Third step: Reduce the stirring speed to 50 revolutions per minute, add the auxiliary materials at another feeding port, then adjust the speed to 100 revolutions per minute, stir for 5 minutes, and use the stirring mechanism 300 to stir the materials again, adjust the speed to 100 revolutions per minute, and stir for 5 minutes; Fourth step: Start the quantitative feeding mechanism 400. Drive the movement of the blocking mechanism 500 through the movement of the quantitative feeding mechanism 400 to dynamically block the discharge port of the stirring hopper 100, thereby realizing quantitative feeding, feeding the materials into the extruder 700. Finally, finally, complete the extrusion work through the extruder 700 (as for the working principle of the extruder 700, as is known in the technical field, after the materials enter the extruder 700, the motor drives the screw to rotate in the barrel, the materials in the hopper fall into the screw groove by gravity, and are conveyed along the screw groove towards the head direction under the push of the rotating screw. At the same time, the external heating device of the barrel and the shear and frictional heat generated by the rotation of the screw raise the temperature of the materials above the melting point, changing from a solid state to a viscous flow state, realizing melting and plasticization. During this process, the materials are stirred and mixed more evenly. Finally, the molten materials are pushed towards the head by the screw. Due to the small size of the die orifice at the head forming an obstacle, pressure is generated, forcing the materials to be extruded through the die orifice to form products with specific shapes and sizes. By adjusting the screw speed and back pressure, the flow rate and pressure of the extruded materials can be controlled, and thus the quality of the products can be controlled).

[0030] The working principle of the present invention: Material addition: The edge materials and auxiliary materials are respectively added into the stirring hopper 100 through the two feeding ports 101 at the upper end of the stirring hopper 100. At the same time, the materials in the storage tank 601 are input into the stirring hopper 100 through the feeding pump via the feeding pipe; Material stirring: Start the servo motor 102. The output end of the servo motor 102 drives the bevel gear A to rotate. The bevel gear A meshes with the bevel gear B 103 and the bevel gear C 104, causing the inner rod 301 and the outer rod 303 to rotate in opposite directions. The inner ring stirring rod 302 and the outer ring stirring rod 305 perform two-way stirring on the material, achieving all-round mixing of the material. Quantitative feeding: The uniformly stirred material falls to the discharge port of the stirring hopper 100. The electric slide rail 402 is started to drive the electric slider and the quantitative bin 403 to move. The left cavity of the quantitative bin 403 measures the material. When the quantitative bin 403 moves below the flow pipe 401, the shielding piece 503 is in the open state, and the material flows into the interior of the quantitative bin 403 along the trend. After the quantitative bin 403 is filled with the material, the electric slide rail 402 drives the quantitative bin 403 to move. The fixed flat plate on its right side seals the outlet of the flow pipe 401. At the same time, the movable plate 404 is opened under the support of the straight plate, and the material in the quantitative bin 403 is fed. Discharge port blocking: When the quantitative bin 403 moves, the power rod 501 fixedly connected thereto drives the auxiliary rod 502 and the shielding piece 503 to move. When the quantitative bin 403 is not directly below the discharge port of the stirring hopper 100, the shielding piece 503 blocks the discharge port of the stirring hopper 100 to prevent the material from flowing out in advance; when the quantitative bin 403 is directly below the discharge port of the stirring hopper 100, the shielding piece 503 is moved away, and the material can smoothly enter the quantitative bin 403.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A biodegradable material scrap extrusion mixing device, including a stirring hopper (100), two feeding ports (101) are opened at the upper end of the stirring hopper (100) for adding side materials and auxiliary materials respectively, and it is characterized in that: A support frame (200) is fixedly connected to the bottom of one end of the mixing hopper (100), and a mixing mechanism (300) for omnidirectionally mixing materials is arranged inside the mixing hopper (100); A quantitative feeding mechanism (400) is installed below the mixing hopper (100). After the materials are bidirectionally mixed by the mixing mechanism (300) and then conveyed to the quantitative feeding mechanism (400), a blocking mechanism (500) is arranged on one side of the quantitative feeding mechanism (400) for closing the discharge port of the mixing hopper (100). When the quantitative feeding mechanism (400) moves, the generated moving force pushes the blocking mechanism (500) to open and close to control the outflow of materials.

2. The biodegradable material scrap extrusion and mixing device according to claim 1, wherein: A fixed cover is fixedly installed at one end of the mixing hopper (100), and a servo motor (102) is fixedly installed on the top of the fixed cover. The output end of the servo motor (102) is spline-connected with a bevel gear A, and a bevel gear B (103) and a bevel gear C (104) are meshed with the outer edge of the bevel gear A.

3. The biodegradable material scrap extrusion and mixing device according to claim 1, characterized in that: A feeding mechanism (600) is arranged at the other end of the mixing hopper (100). The feeding mechanism (600) includes a feeding pipe that is connected to the mixing hopper (100) in a penetrating manner. The input end of the feeding pipe is communicated with a pumping pump, and the input end of the pumping pump is communicated with a storage tank (601). An inlet is arranged at the top of the storage tank (601).

4. The biodegradable material scrap extrusion mixing device according to claim 1, wherein: A groove is formed on the side of the support frame (200) opposite to the quantitative feeding mechanism (400) to provide space for the movement of the quantitative feeding mechanism (400). An extruder (700) is fixedly installed on the bottom surface of the quantitative feeding mechanism (400), and the extruder (700) is connected to the support frame (200) in a penetrating manner.

5. The biodegradable material scrap extrusion and mixing device according to claim 1, characterized in that: The mixing mechanism (300) includes an inner rod (301) fixedly connected to the bevel gear B (103), and an inner ring mixing rod (302) for mixing materials is fixedly connected to the surface of the inner rod (301); The outer wall of the top end of the inner rod (301) is rotatably connected with an outer rod (303). One end of the outer rod (303) is fixedly connected to the bevel gear C (104), and one end of the outer rod (303) close to the fixed cover is rotatably connected to the fixed cover. A rotating plate (304) is fixedly connected to one end of the outer rod (303) close to the inner ring mixing rod (302), and an outer ring mixing rod (305) is fixedly connected to the bottom surface of the rotating plate (304). The inner ring mixing rod (302) and the outer ring mixing rod (305) cooperate to form bidirectional mixing.

6. The biodegradable material scrap extrusion and mixing device according to claim 1, characterized in that: The quantitative feeding mechanism (400) includes a flow pipe (401) located below the discharge port of the mixing hopper (100). An electric slide rail (402) is fixedly installed on the bottom surface of the flow pipe (401), and a stabilizing frame is fixedly connected to the top surface of one end of the electric slide rail (402). The top surface of the stabilizing frame is connected to the mixing hopper (100); An electric slider is slidably connected inside the electric slide rail (402), and a quantitative bin (403) is fixedly connected to the surface of the electric slider. The left side of the quantitative bin (403) is a cavity for quantifying materials, and the right side of the quantitative bin (403) is a fixed flat plate for blocking the outlet of the flow pipe (401) when the quantitative bin (403) discharges materials. A movable plate (404) is hinged to the bottom surface on one side of the cavity of the quantitative bin (403) for opening and closing the cavity of the quantitative bin (403), and a straight plate is slidably connected to the bottom surface of the movable plate (404) for supporting the electric slide rail (402).

7. The biodegradable material scrap extrusion and mixing device according to claim 1, characterized in that: The blocking mechanism (500) includes a power rod (501) fixedly connected to the fixed flat plate on the right side of the quantitative bin (403). An auxiliary rod (502) is fixedly installed at the top of the power rod (501). One end of the auxiliary rod (502) is fixedly connected to a shielding piece (503) for blocking the discharge port of the mixing hopper (100). A moving port adapted to the auxiliary rod (502) is formed on the surface of the fixed cover for the movement of the auxiliary rod (502).

8. A biodegradable material scrap extrusion and mixing process, realized by using the biodegradable material scrap extrusion and mixing device described in any one of claims 1-7, characterized in that: It includes the following method steps: First step: After putting the recycled biodegradable material scraps into the feeding mechanism (600), the biodegradable scraps are fed into the mixing hopper (100) through the feeding mechanism (600). Second step: Turn on the mixing switch on the mixing hopper (100), adjust the speed to 100 revolutions per minute, and mix for 2 minutes. Use the mixing mechanism (300) in the mixing hopper (100) to mix the materials bidirectionally so that the materials are fully mixed. Third step: Reduce the mixing speed to 50 revolutions per minute, add the auxiliary materials at another feeding port, then adjust the speed to 100 revolutions per minute, mix for 5 minutes, use the mixing mechanism (300) to mix the materials again, and adjust the speed to 100 revolutions per minute and mix for 5 minutes. Fourth step: Start the quantitative feeding mechanism (400). Drive the movement of the blocking mechanism (500) through the movement of the quantitative feeding mechanism (400) to dynamically block the discharge port of the mixing hopper (100), thereby realizing quantitative feeding, feeding the materials into the extruder (700), and finally completing the extrusion work through the extruder (700).

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