A plastic particle mixing device
By combining the rotating and feeding components, the plastic granules are circulated within the mixing drum, solving the problem of uneven mixing caused by density differences and accumulation, and improving the mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINRONG TIANCHENG TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-29
AI Technical Summary
In existing plastic pellet mixing devices, pellets with large density differences or multiple layers tend to accumulate at the corners of the mixing tank, resulting in ineffective mixing and affecting the uniformity of the mixture.
The design employs a combination of rotating components, feeding components, and guiding components. Through the rotation of the rotating components and the action of the spiral blades, the plastic granules circulate within the mixing drum. Utilizing gravity and the action of the spiral blades, the granules circulate between different areas, achieving thorough mixing.
This ensures thorough mixing of plastic granules, improves the degree of mixing, and solves the problem of uneven mixing caused by stacking and density differences.
Smart Images

Figure CN224296209U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic particle mixing technology, specifically relating to a plastic particle mixing device. Background Technology
[0002] Plastic pellet mixing is a crucial step in ensuring material uniformity, improving composite material performance, adapting to processing techniques, and enabling the reuse of recycled materials. Through plastic pellet mixing equipment, different types of plastic pellets can be uniformly mixed according to material properties and production requirements, ultimately ensuring stable product performance and optimized costs.
[0003] Chinese patent document CN222360460U discloses a plastic granule mixing device. Through the setting of a reciprocating moving structure, the mixing box with a built-in stirring rack can not only drive the plastic granules put into it to swing, but also stir the plastic granules through the rotating stirring rack, thereby improving the uniformity of the plastic granules and ensuring the mixing effect.
[0004] However, in the prior art, when plastic particles are stacked in multiple layers or have large density differences in the mixing device, some particles that are stacked at the corners of the mixing tank due to inertia will be unable to move effectively or be mixed due to the obstruction of other particles, which makes it difficult for the plastic particles to be thoroughly mixed. Therefore, a plastic particle mixing device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a plastic granule mixing device.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A plastic pellet mixing device includes a loading assembly that provides installation positions for some key components of the device, a mixing assembly that allows the plastic pellets to move and mix sufficiently, and a drive assembly that allows the mixing assembly to operate as needed.
[0008] The mixing assembly includes a rotating component that can continuously adjust the position of the plastic particles in the device, a feeding component that can continuously convey the falling plastic particles to the rotating component, and a guiding component that can easily inject or discharge the plastic particles into the device.
[0009] The rotating component includes cylinder seats mounted on both sides of the loading assembly, a mixing cylinder movably mounted between the cylinder seats, limit covers fixedly connected to both sides of the mixing cylinder, a guide pipe fixedly connected between the limit covers, a first guide frame fixedly connected to the mixing cylinder at the top and bottom of the guide pipe, and a second guide frame partially penetrating and fixedly connected to the guide pipe on the side of the first guide frame away from the guide pipe.
[0010] The feeding component includes a rotating shaft that is coaxially arranged with and passes through the guide tube, and spiral blades that are fixedly connected to the outer surface of the rotating shaft on both sides.
[0011] Preferably, the feeding component further includes tube seats that are movably connected to both ends of the guide tube, a feeding tube that is movably connected to the side of the tube seat away from the guide tube, a shaft seat that is fixedly connected to one end of the feeding tube, and a rotating shaft that is movably connected between the two shaft seats.
[0012] Preferably, the material guide includes discharge valves fixedly connected to the top and bottom of the mixing cylinder, a material hopper fixedly connected to one of the material injection pipes, and a sealing plate fixedly connected to the other material injection pipe.
[0013] Preferably, the cylinder base, mixing cylinder, limiting cover, and pipe base are all composed of two geometrically symmetrical substructures.
[0014] Preferably, the feed tube is set horizontally, and multiple through slots are set at the horizontal center of the feed tube, with the multiple through slots arranged at equal angles around the center line of the feed tube.
[0015] Preferably, the cylinder base is rotatably connected to the mixing cylinder, the guide pipe and the injection pipe are rotatably connected to the pipe base, and the shaft base is rotatably connected to the rotating shaft.
[0016] Preferably, the two helical blades rotate in different directions.
[0017] The beneficial effects of this utility model are as follows: by using a mixing cylinder with a built-in first and second guide frame and a guide pipe with a rotating shaft, all plastic particles injected into the device can circulate within the mixing cylinder and between the different areas separated by the first and second guide frames and the guide pipe due to gravity or the action of the spiral blades rotating with the shaft. This allows the device to achieve comprehensive mixing of plastic particles while maintaining a uniform mixing degree. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of a plastic granule mixing device according to the present invention;
[0020] Figure 2 This is a schematic diagram of the main structure of the plastic granule mixing device described in this utility model;
[0021] Figure 3 yes Figure 1 Schematic diagram of some component structures;
[0022] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure;
[0023] Figure 5 yes Figure 4 A proportionally enlarged structural diagram at point A;
[0024] Figure 6 yes Figure 3 A schematic diagram of the structure of some components from another perspective.
[0025] The annotations in the attached figures are explained as follows:
[0026] 1. Loading assembly; 101. Frame; 102. Pillar block; 103. Unloading rack; 2. Mixing assembly; 201. Cylinder seat; 202. Mixing cylinder; 203. Limit cover; 204. Guide pipe; 205. First guide rack; 206. Second guide rack; 207. Pipe seat; 208. Injection pipe; 209. Shaft seat; 210. Rotating shaft; 211. Spiral blade; 212. Unloading valve; 213. Injection hopper; 214. Sealing plate; 3. Drive assembly; 301. Ring frame; 302. First pulley; 303. First motor; 304. Second pulley; 305. First belt; 306. Second motor; 307. Third pulley; 308. Fourth pulley; 309. Second belt. Detailed Implementation
[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0030] like Figures 1-6 As shown, a plastic granule mixing device includes a loading assembly 1 that provides installation positions for some key components of the device, a mixing assembly 2 that allows the plastic granules to move and mix sufficiently, and a drive assembly 3 that allows the mixing assembly 2 to operate as needed on the loading assembly 1.
[0031] In this embodiment: the loading component 1 includes a frame 101, with pillow blocks 102 fixedly connected to both sides of the frame 101, and a unloading rack 103 fixedly installed inside the frame 101.
[0032] The stable frame 101 provides mounting positions for components such as the pillow block 102, the unloading rack 103, the first motor 303, and the second motor 306, enabling the device to operate stably. The pillow block 102 provides mounting positions for components such as the cylinder seat 201 and the tube seat 207 in the mixing assembly 2, thereby improving the overall stability of the mixing assembly 2. The unloading rack 103 receives the plastic particles discharged from the mixing assembly 2 and discharges them out of the device.
[0033] In this embodiment: the mixing component 2 includes a rotating component that can continuously adjust the position of the plastic particles in the device, a feeding component that can continuously transport the falling plastic particles to the rotating component, and a guiding component that can easily inject or discharge the plastic particles into the device.
[0034] The rotating component includes cylinder seats 201 mounted on both sides of the loading assembly 1. A mixing cylinder 202 is movably mounted between the cylinder seats 201. Limiting covers 203 are fixedly connected to both sides of the mixing cylinder 202. A guide pipe 204 is fixedly connected between the limiting covers 203. A first guide frame 205 is provided above and below the guide pipe 204 and is fixedly connected to the mixing cylinder 202. A second guide frame 206 is provided on the side of the first guide frame 205 away from the guide pipe 204, partially penetrating it and fixedly connected to the guide pipe 204. The feeding component includes a rotating shaft 210 coaxially arranged with and penetrating the guide pipe 204. Both sides of the shaft 210 are provided with spiral blades 211 fixedly connected to their outer surfaces. The feeding component also includes pipe seats 207 movably connected to both ends of the guide pipe 204. The side of the pipe seat 207 away from the guide pipe 204 is movably connected to the injection pipe 208. One end of the injection pipe 208 is fixedly connected to the shaft seat 209. The two shaft seats 209 are movably connected to the rotating shaft 210. The guiding component includes discharge valves 212 fixedly connected to the upper and lower parts of the mixing cylinder 202. One injection pipe 208 is fixedly connected to the injection hopper 213, and the other injection pipe 208 is fixedly connected to the sealing plate 214.
[0035] The cylinder seat 201, mixing cylinder 202, limiting cover 203, and tube seat 207 are each composed of two geometrically symmetrical substructures. The guide tube 204 is horizontally arranged, and multiple through slots are arranged at the horizontal center of the guide tube 204. The multiple through slots are arranged at equal angular intervals around the center line of the guide tube 204. The cylinder seat 201 is rotatably connected to the mixing cylinder 202. The guide tube 204 and the injection tube 208 are rotatably connected to the tube seat 207. The shaft seat 209 is rotatably connected to the rotating shaft 210. The two spiral blades 211 rotate in different directions.
[0036] The movable range of the mixing cylinder 202 is restricted by the cylinder base 201, allowing it to rotate only at a fixed position within the device. The mixing cylinder 202 holds and mixes plastic granules. The guide tube 204, which passes through the mixing cylinder 202, is fixed by the limiting cover 203, allowing the guide tube 204 to rotate with the mixing cylinder 202 despite limited lateral movement. The first guide frame 205 and the second guide frame 206 separate the internal space of the mixing cylinder 202. The lower first guide frame 205 guides the plastic granules between the two first guide frames 205 into the area enclosed by the mixing cylinder 202 and the lower second guide frame 206, while the higher second guide frame 206 guides the plastic granules above it. The feed pipe 204 is connected to the feed pipe 208 via the pipe seat 207. The feed pipe 204, which can rotate with the mixing cylinder 202, is connected to the feed pipe 208 via the pipe seat 207. The rotating shaft 210 is installed through the feed pipe 208 and the feed pipe 204 via the shaft seat 209. The plastic particles falling into the feed pipe 208 or the feed pipe 204 are guided to the through groove of the feed pipe 204 via two spiral blades 211 that can rotate with the rotating shaft 210. The discharge valve 212 controls the opening and closing of the discharge channel of the mixing cylinder 202. The plastic particles are conveniently injected into this device via the feed hopper 213. The upper opening of the feed pipe 208 that is not connected to the feed hopper 213 is closed by the sealing plate 214 to prevent debris from falling into the feed pipe 208.
[0037] In this embodiment: the drive assembly 3 includes two ring frames 301 fixedly connected to the outer side of the mixing cylinder 202. A first pulley 302 is fixedly connected to the outer side of the ring frame 301. A first motor 303 is fixedly installed on the top of the frame 101. The first motor 303 is a dual-shaft motor. A second pulley 304 is fixedly connected to the output end of the first motor 303. A first belt 305 is provided between the first pulley 302 and the second pulley 304 with the same lateral position. A second motor 306 is fixedly installed inside one side of the frame 101. A third pulley 307 is fixedly connected to the output end of the second motor 306. A fourth pulley 308 is fixedly connected to the side of the rotating shaft 210 near the second motor 306. A second belt 309 is provided between the third pulley 307 and the second belt 309.
[0038] The first pulley 302 is sleeved on the outer side of the mixing cylinder 202 by the ring frame 301, so that the first pulley 302 can drive the mixing cylinder 202 to rotate without deforming the mixing cylinder 202 due to continuous force. The rotation of the output end of the first motor 303 is transmitted to the mixing cylinder 202 through the second pulley 304, the first belt 305, the first pulley 302, and the ring frame 301, so that the running first motor 303 can drive the mixing cylinder 202 to rotate relative to the cylinder seat 201. The rotation of the output end of the second motor 306 is transmitted to the rotating shaft 210 through the third pulley 307, the second belt 309, and the fourth pulley 308, so that the running second motor 306 can drive the rotating shaft 210 to rotate relative to the shaft seat 209.
[0039] Working principle: When this device is installed and used for mixing plastic granules, after the discharge valve 212 is closed, the first motor 303 and the second motor 306 are activated to drive the mixing cylinder 202 and the rotating shaft 210 to rotate, and the plastic granules to be mixed are introduced into this device through the feeding hopper 213.
[0040] As the spiral blade 211 rotates with the shaft 210, it can transport plastic granules from one end of the injection pipe 208 or the guide pipe 204 near the injection pipe 208 to the through groove in the middle of the guide pipe 204. Therefore, the plastic granules that fall into the injection pipe 208 through the injection hopper 213 will be transported to the mixing cylinder 202 by the spiral blade 211. As the mixing cylinder 202 continues to rotate, the plastic granules inside will continuously fall between the mixing cylinder 202 and the lower second guide frame 206. When the second guide frame 206 rotates to the higher position with the mixing cylinder 202, the granules will fall into the guide pipe 204 through the pipe of the second guide frame 206 and the first guide frame 205. Then, under the action of the spiral blade 211, they will fall back into the mixing cylinder 202 between the two first guide frames 205 through the through groove of the guide pipe 204.
[0041] In this configuration, all plastic granules entering the device can circulate between the two first guide frames 205 within the mixing cylinder 202, between the mixing cylinder 202 and the second guide frame 206, and within the guide pipe 204, and be fully mixed during the flow. After mixing is complete, the plastic granules can fall onto the unloading frame 103 through the opened unloading valve 212, and then flow out of the device along the unloading frame 103.
[0042] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention 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 the present invention.
Claims
1. A plastic granule mixing device, characterized in that: It includes a loading assembly (1) that can provide installation positions for some key components of the device, a mixing assembly (2) that can fully move and mix plastic particles, and a drive assembly (3) that can operate the mixing assembly (2) as needed. The mixing component (2) includes a rotating component that can continuously adjust the position of the plastic particles in the device, a feeding component that can continuously transport the falling plastic particles to the rotating component, and a guiding component that can easily inject or discharge the plastic particles into the device. The rotating component includes cylinder seats (201) installed on both sides of the loading assembly (1), a mixing cylinder (202) is movably installed between the cylinder seats (201), limit covers (203) are fixedly connected to both sides of the mixing cylinder (202), a guide tube (204) is fixedly connected between the limit covers (203), a first guide frame (205) is provided above and below the guide tube (204) and fixedly connected to the mixing cylinder (202), and a second guide frame (206) is provided on the side of the first guide frame (205) away from the guide tube (204) and partially penetrates it and is fixedly connected to the guide tube (204); The feeding component includes a rotating shaft (210) that is coaxially arranged with and passes through the guide tube (204). Both sides of the rotating shaft (210) are provided with spiral blades (211) that are fixedly connected to their outer surfaces.
2. The plastic granule mixing device according to claim 1, characterized in that: The feeding component also includes pipe seats (207) that are movably connected to both ends of the guide pipe (204). A filling pipe (208) is movably connected to the side of the pipe seat (207) away from the guide pipe (204). A shaft seat (209) is fixedly connected to one end of the filling pipe (208). The rotating shaft (210) is movably connected between the two shaft seats (209).
3. The plastic granule mixing device according to claim 2, characterized in that: The material guide includes a discharge valve (212) fixedly connected to the upper and lower parts of the mixing cylinder (202), a material hopper (213) fixedly connected to one of the material injection pipes (208), and a sealing plate (214) fixedly connected to the other material injection pipe (208).
4. The plastic granule mixing device according to claim 2, characterized in that: The cylinder base (201), the mixing cylinder (202), the limiting cover (203), and the tube base (207) are all composed of two geometrically symmetrical substructures.
5. A plastic pellet mixing device according to claim 4, characterized in that: The guide tube (204) is horizontally arranged, and a plurality of through grooves are arranged at the horizontal center position of the guide tube (204). The plurality of through grooves are arranged at equal angles around the center line of the guide tube (204).
6. A plastic granule mixing device according to claim 2, characterized in that: The cylinder seat (201) is rotatably connected to the mixing cylinder (202), the guide pipe (204) and the injection pipe (208) are both rotatably connected to the pipe seat (207), and the shaft seat (209) is rotatably connected to the rotating shaft (210).
7. A plastic pellet mixing device according to claim 6, characterized in that: The two spiral blades (211) have different directions of rotation.