Plastic mixing mechanism

The problem of metal debris contamination in the plastic mixing mechanism was solved by using an electromagnet cleaning mechanism and a double auger mixing system, achieving efficient impurity removal and uniform mixing, and improving the product quality of plastic granules.

CN223918339UActive Publication Date: 2026-02-17DONGGUAN NENGLU PLASTIC MOLD CO LTD
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Patent Information

Application Number
CN202520550544.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-17
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

After prolonged use, existing plastic mixing facilities can contaminate plastic pellets with metal debris, leading to a decline in product quality, particularly in impact resistance and tensile strength.

Method used

An electromagnet cleaning mechanism and a double auger mixing system are used. The electromagnet adsorbs metal impurities, and the first and second augers and stirring blades are used to tumble and mix the plastic granules evenly, preventing stratification and improving the mixing quality.

Benefits of technology

It effectively removes metallic impurities, improves the mixing uniformity of plastic granules and product quality, prevents the formation of stress concentration points, and enhances impact resistance and tensile strength.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of plastic mixing, in particular to a plastic mixing mechanism which comprises a support frame, a feed port and a discharge port, and further comprises an inner shell, an outer shell, a stirring mechanism and a cleaning mechanism, the cleaning mechanism comprises a plurality of electromagnets and a mounting assembly, the stirring mechanism comprises a connecting assembly, a first conveying assembly, a second conveying assembly and a plurality of stirring blades, and plastic particles on the lower portion can move to the upper portion from the lower portion of the shell through a first packing auger and a second packing auger; and the plastic material moving to the upper part flows out of the inner shell and falls into the lower part in the outer shell again under the action of gravity, so that the plastic particles in the outer shell can be repeatedly turned up and down, the plastic particles are prevented from being layered in the inner shell, and the mixing quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic mixing, in particular to a plastic mixing mechanism. BACKGROUND

[0002] Plastic particles, that is, plastic particles, are plastic raw materials in semi-finished product form for storage, transportation and processing, and play an important role in daily life. Different varieties of plastics are used in different positions, and the raw material ratio of various varieties of plastics in processing is not the same. Plastic mixing mechanism is often used for uniform stirring of plastic raw materials with a mixing mechanism.

[0003] The existing plastic enters the mixing mechanism, and the parts inside the mixing mechanism will produce metal debris in the long-time working friction after the equipment is used for a long time, which will pollute the plastic particles. The metal impurities remaining in the plastic products will form stress concentration points, reduce the impact resistance and tensile strength, and affect the product quality. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a plastic mixing mechanism to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A plastic mixing mechanism, comprising a support frame, an inlet and an outlet, further comprising an inner shell, an outer shell, a stirring mechanism and a cleaning mechanism;

[0007] The cleaning mechanism comprises a plurality of electromagnets and a mounting assembly, the mounting assembly is arranged between the inner shell and the outer shell, and the plurality of electromagnets are mounted on the mounting assembly;

[0008] The stirring mechanism comprises a connecting assembly, a first conveying assembly, a second conveying assembly and a plurality of stirring blades, the first conveying assembly is arranged inside the inner shell, the second conveying assembly is arranged below the first conveying assembly, the connecting assembly is arranged below the second conveying assembly, and the plurality of stirring blades are arranged on the connecting assembly.

[0009] As a further scheme of the application, the first conveying assembly comprises a motor, a top plate, a first rotating shaft and a first auger, the top plate is fixedly arranged on the top of the outer shell, the motor is fixedly arranged on the top of the top plate, the first rotating shaft is rotatably arranged on the top plate, and one end of the first rotating shaft is fixedly connected with the output end of the motor, the first auger is fixedly arranged on the first rotating shaft, the inner shell is fixedly arranged on the bottom surface of the top plate, and the first auger is arranged inside the inner shell, and a scattering port is arranged on the top of the inner shell.

[0010] As a further scheme of the present application: the second conveying assembly comprises a second auger, a conical shell and a second rotating shaft, the conical shell is fixedly arranged below the inner shell, the second rotating shaft is fixedly arranged at the bottom end of the first rotating shaft, the second auger is fixedly arranged on the outer wall of the second rotating shaft and located inside the conical shell.

[0011] As a further scheme of the present application: the mounting assembly comprises a first fixing ring, a second fixing ring, a plurality of connecting columns and a plurality of connecting frames, the first fixing ring is fixedly arranged on the inner wall of the outer shell, the second fixing ring is fixedly arranged on the outer wall of the inner shell, each connecting column is fixed between the first fixing ring and the second fixing ring, each connecting frame is fixedly mounted on a connecting column, and each electromagnet is fixedly arranged on a connecting frame.

[0012] As a further scheme of the present application: the connecting assembly comprises a fixing rod and two connecting rods, the fixing rod is fixedly arranged at the bottom of the second rotating shaft, the two connecting rods are fixedly arranged at the two ends of the fixing rod, and a plurality of stirring blades are uniformly arranged on the two connecting rods.

[0013] As a further scheme of the present application: a limiting block is arranged on one side of the connecting rod stirring blade, and a limiting sleeve is arranged on the outer wall of the inner shell, and the limiting block is slidingly arranged in the limiting sleeve.

[0014] As a further scheme of the present application: the feeding port is mounted on the surface of the outer shell, and the discharging port is mounted at the bottom end of the outer shell.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The plastic mixing mechanism can repeatedly stir the plastic particles up and down, prevents the plastic particles from being layered in the inner shell, and improves the mixing quality.

[0017] 2、The plastic mixing mechanism can drive the stirring blades to rotate and stir the plastic particles in the inner shell horizontally while the plastic particles are rolled by the first auger and the second auger, so that the plastic particles can be stirred horizontally while being mixed longitudinally, the layering is avoided, and the mixing effect is improved.

[0018] 3、The plastic mixing mechanism can scatter the plastic particles carrying metal impurities to the mounting assembly when the plastic particles flow out from the top of the inner shell, and the metal impurities mixed in the plastic particles are adsorbed by the electromagnet, so that the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model.

[0020] Figure 2 It is the section structure schematic view of the shell in the utility model.

[0021] Figure 3 It is the structure schematic view of the first auger in the utility model Figure 2 .

[0022] Figure 4 It is the structure schematic view of the first auger in the utility model

[0023] 1, support frame, 2, stirring blade, 3, electromagnet, 4, motor, 5, top plate, 6, first rotating shaft, 7, first auger, 9, second auger, 10, conical shell, 11, fixed rod, 12, second rotating shaft, 13, first fixed ring, 14, connecting column, 15, connecting frame, 16, second fixed ring, 17, connecting rod, 18, limit block, 19, limit sleeve, 20, inner shell, 21, shell, 22, feed inlet, 23, discharge outlet, 24, scattering port. DETAILED DESCRIPTION

[0024] The principles and characteristics of the utility model are described below in conjunction with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model.

[0025] The utility model provides the following preferred embodiments:

[0026] Embodiment one, as Figures 1-4 shown, a plastic mixing mechanism, including support frame 1, feed inlet 22 and discharge outlet 23, still including inner shell 20, shell 21, stirring mechanism and cleaning mechanism, shell 21 is located in the inside of inner shell 20;

[0027] Cleaning mechanism includes a plurality of electromagnets 3 and installation assembly, installation assembly is arranged between inner shell 20 and shell 21, a plurality of electromagnets 3 are all installed on installation assembly, specifically, electromagnet 3 is prior art, this place is not elaborated, in use, by making electromagnet 3 energized, the adsorption of the metal scrap mixed in plastic particles can be realized, and impurity removal is realized, when the plastic particles in shell 21 are discharged through discharge outlet 23, by making electromagnet 3 de-energized, the adsorbed metal impurities can be discharged through discharge outlet 23;

[0028] Stirring mechanism includes connecting assembly, first transport assembly, second transport assembly and a plurality of stirring blades 2, first transport assembly is arranged in the inside of inner shell 20, second transport assembly is arranged below first transport assembly, connecting assembly is arranged below second transport assembly, and a plurality of stirring blades 2 are all arranged on connecting assembly.

[0029] As shown in Figures 1-4 , the first conveying assembly comprises a motor 4, a top plate 5, a first rotating shaft 6 and a first auger 7, the top plate 5 is fixedly arranged at the top of the outer shell 21, the motor 4 is fixedly arranged at the top of the top plate 5, the first rotating shaft 6 is rotatably arranged on the top plate 5 and is fixed at one end to the output end of the motor 4, the first auger 7 is fixedly arranged on the first rotating shaft 6, the inner shell 20 is fixedly arranged at the bottom surface of the top plate 5 and the first auger 7 is located inside the inner shell 20, and a scattering port 24 is formed at the top of the inner shell 20;

[0030] During the stirring process, metal chips may be generated in the internal parts of the mixing mechanism due to long-time working friction after the device is used for a long time, which may contaminate the plastic particles. When the metal impurities need to be cleaned, the first rotating shaft 6 and the second rotating shaft 12 are both rotating during the uniform stirring of the plastic particles inside the outer shell 21, and the first auger 7 and the second auger 9 are also rotating at the same time. The second auger 9 can roll the plastic particles below in the outer shell 21 into the conical shell 10, and the second auger 9 can transport the metal impurities and the plastic particles upward to the first auger 7. The first auger 7 can transport the metal impurities and the plastic particles in the inner shell 20. When the metal impurities and the plastic particles are transported to the upper part, the plastic particles carrying the metal impurities are scattered from the scattering port 24 formed at the upper part to the inner shell 20 and the outer shell 21. The plastic particles carrying the metal impurities can be adsorbed by the electromagnet 3 to filter the plastic particles, and the plastic particles inside the outer shell 21 can be circularly filtered, which can not only clean the metal impurities but also mix the plastic particles in the outer shell 21 uniformly with the stirring mechanism.

[0031] As shown in Figures 1-4 , the second conveying assembly comprises a second auger 9, a conical shell 10 and a second rotating shaft 12, the conical shell 10 is fixedly arranged below the inner shell 20, the second rotating shaft 12 is fixedly arranged at the bottom end of the first rotating shaft 6, the second auger 9 is fixedly arranged on the outer wall of the second rotating shaft 12 and is located inside the conical shell 10. Since the second auger 9 is larger than the first auger 7 and the conical shell 10 is larger than the inner shell 20, the plastic particles in the second auger 9 can be extruded when the plastic particles enter the first auger 7, and the plastic particles can be scattered when passing through the scattering port 24 formed above the first auger 7, which facilitates the adsorption of the metal impurities by the electromagnet 3.

[0032] As shown in Figures 1-4As shown, the installation assembly comprises a first fixing ring 13, a second fixing ring 16, a plurality of connecting columns 14 and a plurality of connecting frames 15, the first fixing ring 13 is fixedly arranged on the inner wall of the outer shell 21, the second fixing ring 16 is fixedly arranged on the outer wall of the inner shell 20, each connecting column 14 is fixed between the first fixing ring 13 and the second fixing ring 16, each connecting frame 15 is fixedly installed on one connecting column 14, and each electromagnet 3 is fixedly arranged on one connecting frame 15. By installing the electromagnets 3 between the outer shell 21 and the inner shell 20, the installation assembly is installed by installing a plurality of connecting columns 14 between the outer shell 21 and the inner shell 20, installing one connecting frame 15 above each connecting column 14, and installing an electromagnet 3 above one connecting frame 15. When the plastic particles carrying metal impurities are thrown out through the feeding port 24, they will pass through the electromagnets 3, and the metal impurities will be adsorbed on the electromagnets 3, and the plastic particles will fall between every two connecting columns 14. Through the circulation process, the metal impurities attached to the surface of the plastic particles are cleaned.

[0033] As shown in Figures 1-4 The connecting assembly comprises a fixed rod 11 and two connecting rods 17, the fixed rod 11 is fixedly arranged at the bottom of the second rotating shaft 12, and the two connecting rods 17 are fixedly arranged at the two ends of the fixed rod 11. A plurality of stirring blades 2 are uniformly arranged on the two connecting rods 17.

[0034] When the cleaning mechanism is cleaning, the fixed rod 11 is driven to rotate by the second rotating shaft 12, thereby driving the two connecting rods 17 to rotate, and the two connecting rods 17 drive the plurality of stirring blades 2 to rotate, thereby uniformly stirring the plastic particles in the inner shell 21.

[0035] As shown in Figures 1-4 One side of the connecting rod 17 is provided with a limiting block 18, and the outer wall of the inner shell 20 is provided with a limiting sleeve 19. The limiting block 18 is slidingly arranged in the limiting sleeve 19. The limiting block 18 and the limiting sleeve 19 can guide the connecting rod 17 when the connecting rod 17 rotates, thereby improving the stability of the connecting rod 17 when rotating.

[0036] As shown in Figures 1-4 The feeding port 22 is installed on the surface of the outer shell 21, and the discharging port 23 is installed at the bottom end of the outer shell 21, and the discharging port 23 is provided with a sealing cover plate for opening and closing the discharging port 23.

Claims

1. A plastic mixing mechanism, comprising a support frame (1), an inlet (22), and an outlet (23), characterized in that, It also includes an inner shell (20), an outer shell (21), a stirring mechanism, and a cleaning mechanism; The cleaning mechanism includes multiple electromagnets (3) and a mounting assembly, which is located between the inner shell (20) and the outer shell (21), and the multiple electromagnets (3) are all mounted on the mounting assembly; The stirring mechanism includes a connecting component, a first transport component, a second transport component, and multiple stirring blades (2). The first transport component is located inside the inner shell (20), the second transport component is located below the first transport component, the connecting component is located below the second transport component, and the multiple stirring blades (2) are all located on the connecting component.

2. The plastic mixing mechanism according to claim 1, characterized in that, The first transport component includes a motor (4), a top plate (5), a first rotating shaft (6), and a first auger (7). The top plate (5) is fixedly mounted on the top of the outer shell (21). The motor (4) is fixedly mounted on the top of the top plate (5). The first rotating shaft (6) is rotatably mounted on the top plate (5), and one end is fixed to the output end of the motor (4). The first auger (7) is fixedly mounted on the first rotating shaft (6). The inner shell (20) is fixedly mounted on the bottom surface of the top plate (5), and the first auger (7) is located inside the inner shell (20). A material discharge port (24) is opened on the top of the inner shell (20).

3. The plastic mixing mechanism according to claim 2, characterized in that, The second transport assembly includes a second auger (9), a conical shell (10), and a second rotating shaft (12). The conical shell (10) is fixedly disposed below the inner shell (20). The second rotating shaft (12) is fixedly disposed at the bottom end of the first rotating shaft (6). The second auger (9) is fixedly disposed on the outer wall of the second rotating shaft (12), and the second auger (9) is located inside the conical shell (10).

4. The plastic mixing mechanism according to claim 3, characterized in that, The mounting assembly includes a first fixing ring (13), a second fixing ring (16), multiple connecting posts (14), and multiple connecting brackets (15). The first fixing ring (13) is fixedly disposed on the inner wall of the outer shell (21), the second fixing ring (16) is fixedly disposed on the outer wall of the inner shell (20), each connecting post (14) is fixed between the first fixing ring (13) and the second fixing ring (16), each connecting bracket (15) is fixedly mounted on a connecting post (14), and each electromagnet (3) is fixedly disposed on a connecting bracket (15).

5. A plastic mixing mechanism according to claim 4, characterized in that, The connecting assembly includes a fixed rod (11) and two connecting rods (17). The fixed rod (11) is fixedly installed at the bottom of the second rotating shaft (12), and the two connecting rods (17) are respectively fixedly installed at both ends of the fixed rod (11). Multiple stirring blades (2) are evenly arranged on the two connecting rods (17).

6. A plastic mixing mechanism according to claim 5, characterized in that, A limiting block (18) is provided on one side of the connecting rod (17) and the stirring blade (2), and a limiting sleeve (19) is provided on the outer wall of the inner shell (20). The limiting block (18) is slidably disposed in the limiting sleeve (19).

7. A plastic mixing mechanism according to claim 6, characterized in that, The feed inlet (22) is installed on the surface of the outer shell (21), and the discharge outlet (23) is installed at the bottom of the outer shell (21).