Heating and mixing device for plastic particle production
By introducing a tilting mixing drum and a circular coil heating structure into the plastic pellet production device, the problem of uneven mixing of raw materials at the bottom was solved, achieving efficient heating and mixing of plastic pellets and improving the mixing quality.
Patent Information
- Application Number
- CN202520050831.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing technologies, during the mixing and heating process of plastic granules, the raw materials near the bottom are difficult to be fully incorporated into the conveying process of the spiral blades, resulting in uneven mixing and low heating efficiency.
A heating and mixing device for producing plastic granules was designed. It adopts a flip-up cover and mixing cylinder, combined with a stirring component and a heating component. The mixing cylinder is flipped and the stirring paddle is rotated by a motor-driven rotating shaft and gear meshing transmission. With the help of a circular coil heating, heat is evenly distributed and the mixing is uniform.
It achieves efficient mixing and uniform heating of plastic raw materials, improving the mixing efficiency and quality of plastic particles.
Smart Images

Figure CN223657352U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic particle production, especially relates to a plastic particle production heating mixing device. BACKGROUND
[0002] Plastic particles are small particles made of polymer (plastic) materials, which are an important raw material form in the plastic production and processing process and are widely used in various industries and daily life.
[0003] In the prior art, through retrieval, it is found that a Chinese patent discloses "a mixing device for PVC plastic particle production", with the application number "202222158798.5". The above-mentioned patent mainly includes a material tank, three equidistantly arranged supporting legs are fixedly arranged at the bottom end of the material tank, a feeding hole is formed in the inner wall of one side of the top end of the material tank, a feeding hopper is fixedly arranged at the top end of the feeding hole, a stirring shaft is rotatably connected in the interior of the material tank through a bearing, and a stirring assembly is arranged at the middle part of the interior of the material tank. Although the above-mentioned utility model patent makes the plastic particles at the bottom of the device push upward after the rotation of the stirring shaft, at the same time, the rotation of the two extension plates drives the rotation of the two movable rods and the plurality of stirring rods, and the plurality of stirring rods stir the plastic particles pushed upward from the bottom, so that the plastic particles are fully mixed. However, the spiral blades and the stirring rods are arranged at the middle part of the material tank, and there is a certain distance between the spiral blades and the stirring rods and the bottom of the material tank. This layout may cause the raw materials close to the bottom to be difficult to be fully rolled into the conveying process of the spiral blades, and then may be difficult to be effectively conveyed to the stirring rods. The bottom raw materials are prone to uneven mixing due to lack of sufficient mixing and heating, which reduces the heating efficiency and uniformity. Therefore, the utility model provides a plastic particle production heating mixing device to solve the problems in the above-mentioned background technology. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a plastic particle production heating mixing device, which can realize efficient mixing and uniform heating of plastic raw materials, has a simple structure and is beneficial to improving the mixing efficiency and quality of plastic particles.
[0005] To achieve the above-mentioned purpose, a plastic particle production heating mixing device is provided, which comprises two L-shaped support frames, a rotating shaft is rotatably connected to one side of the support frame close to the top, a driving assembly for driving the rotation of the rotating shaft is arranged on one side of one of the support frames, a connecting plate is fixedly connected to the opposite end of the rotating shaft, a cover body is fixedly connected between the connecting plates, a stirring assembly and a heating assembly are arranged on the bottom of the cover body, a gas cylinder is fixedly connected to the bottom of the connecting plate, a connecting rod is fixedly connected to the bottom end of the piston rod of the gas cylinder, a bottom plate is fixedly connected to the bottom ends of the connecting rods, and a mixing cylinder is arranged on the top of the bottom plate and opposite to the cover body.
[0006] The stirring assembly includes a rotating rod rotatably connected to the inside of the cover body and a stirring paddle fixedly connected to the bottom end of the rotating rod;
[0007] The heating assembly includes a heating tube fixedly connected to the bottom of the cover.
[0008] According to the aforementioned heating and mixing device for producing plastic granules, the stirring assembly further includes a second motor fixedly connected to the top of the cover, and the top end of the rotating rod is fixedly connected to the output shaft of the second motor.
[0009] According to the aforementioned heating and mixing device for producing plastic granules, the heating component further includes a temperature sensor located at the bottom of the cover, and the heating tube is located above the stirring paddle and is configured as a circular coil structure.
[0010] According to the aforementioned heating and mixing device for producing plastic granules, the drive assembly includes a first motor and two gears fixedly connected to the side of the support frame away from the connecting plate, one of the gears being fixedly connected to the end of a rotating shaft, and the other gear being fixedly connected to the output shaft of the first motor, and the two gears being meshed together.
[0011] According to the aforementioned heating and mixing device for producing plastic granules, a slot is provided inside the base plate, and the mixing cylinder is inserted into the slot.
[0012] According to the aforementioned heating and mixing device for producing plastic granules, guide rods are slidably connected inside both connecting plates, and the bottom ends of the guide rods are fixedly connected to the base plate.
[0013] This utility model has the following beneficial effects:
[0014] Compared with existing technologies, this plastic granule production heating and mixing device, by setting a flip-up cover and mixing cylinder, and cooperating with the heating and stirring components set on the cover, can achieve efficient mixing and uniform heating of plastic raw materials. It has a simple structure and is conducive to improving the mixing efficiency and quality of plastic granules.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the first overall structure of a heating and mixing device for producing plastic granules according to the present invention;
[0018] Figure 2 This is a schematic diagram of the second overall structure of a heating and mixing device for producing plastic granules according to the present invention;
[0019] Figure 3 This is a schematic diagram of the cover, rotating rod, stirring paddle, heating tube, and temperature sensor of a heating and mixing device for producing plastic granules according to this utility model.
[0020] Figure 4 This is a schematic diagram of the mixing cylinder, bottom plate, and slot structure of a heating and mixing device for producing plastic granules according to this utility model.
[0021] Legend:
[0022] 1. Support frame; 2. Rotating shaft; 3. Cover; 4. Connecting plate; 5. Cylinder; 6. Connecting rod; 7. Base plate; 8. Mixing cylinder; 9. Guide rod; 10. First motor; 11. Gear; 12. Second motor; 13. Stirring paddle; 14. Heating tube; 15. Temperature sensor; 16. Slot; 17. Rotating rod. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figures 1-4 This utility model discloses a heating and mixing device for producing plastic granules, which includes two L-shaped support frames 1. A rotating shaft 2 is rotatably connected to the inside of each support frame 1, near the top. One side of one support frame 1 is provided with a drive assembly for rotating the rotating shaft 2. A connecting plate 4 is fixedly connected to the opposite ends of the rotating shaft 2. A cover 3 is fixedly connected between the connecting plates 4. A stirring assembly and a heating assembly are provided at the bottom of the cover 3. A cylinder 5 is fixedly connected to the bottom of each connecting plate 4. A connecting rod 6 is fixedly connected to the bottom end of the piston rod of each cylinder 5. A base plate 7 is fixedly connected to the bottom end of the connecting rod 6. A mixing cylinder 8 is provided on the top of the base plate 7, which is vertically opposite to the cover 3. A slot 16 is provided inside the base plate 7, and the mixing cylinder 8 is inserted into the slot 16.
[0025] When the mixing cylinder 8 containing the raw materials is placed above the base plate 7, it engages with the slot 16, ensuring the stability of the mixing cylinder 8. The operation of the cylinder 5, through the contraction of the piston rod, moves the connecting rod 6 and the base plate 7 upwards, allowing the mixing cylinder 8 to fit snugly against the cover 3 and seal. The drive assembly rotates the shaft 2, causing the cover 3 and the mixing cylinder 8 to simultaneously flip into an inverted structure, facilitating subsequent stirring and mixing. Under the action of the heating and stirring components, the plastic granules inside the mixing cylinder 8 can be heated and mixed. The structure is simple, enabling efficient mixing and uniform heating of plastic raw materials, thus improving the mixing efficiency and quality of the plastic granules.
[0026] The mixing assembly includes a rotating rod 17 rotatably connected inside the cover 3, a stirring paddle 13 fixedly connected to the bottom end of the rotating rod 17, and a second motor 12 fixedly connected to the top of the cover 3. The top end of the rotating rod 17 is fixedly connected to the output shaft of the second motor 12. When the second motor 12 is started, it will drive the stirring paddle 13 to rotate in the mixing drum 8 through the rotating rod 17, thereby achieving uniform mixing of plastic raw materials. Combined with the rotating mixing drum 8, it achieves a highly efficient mixing effect.
[0027] The heating assembly includes a heating tube 14 fixedly connected to the bottom of the cover 3 and a temperature sensor 15 located at the bottom of the cover 3. The heating tube 14 is located above the stirring paddle 13 and is designed as a circular coil structure. The circular coil structure is used to ensure that the heat can be evenly distributed. The temperature sensor 15 can be used to monitor the heating temperature in real time and adjust the heating power as needed to ensure that the plastic raw materials are mixed at a suitable temperature.
[0028] The drive assembly includes a first motor 10 fixedly connected to the support frame 1 on the side away from the connecting plate 4 and two gears 11. One gear 11 is fixedly connected to the end of the rotating shaft 2, and the other gear 11 is fixedly connected to the output shaft of the first motor 10, and the two gears 11 are meshed together.
[0029] When the first motor 10 starts, it drives the rotating shaft 2 and the connecting plate 4 connected to it to rotate through the meshing transmission of the gear 11, thereby realizing the synchronous flipping operation of the cover 3 and the mixing cylinder 8.
[0030] Guide rods 9 are slidably connected inside both connecting plates 4. The bottom ends of the guide rods 9 are fixedly connected to the base plate 7. The guide rods 9 can enhance the stability of the structure between the connecting plates 4, the cylinder 5 and the base plate 7. When the base plate 7 moves up and down, the guide rods 9 slide inside the connecting plates 4, which helps to ensure the stability of the base plate 7 and the mixing cylinder 8 on top of it.
[0031] Working principle: When the mixing cylinder 8 containing raw materials is placed above the base plate 7, it engages with the slot 16, which helps ensure the stability of the mixing cylinder 8. The operation of the cylinder 5 drives the connecting rod 6 and the bottom plate 7 to move upward through the contraction of the piston rod, thereby allowing the mixing cylinder 8 to fit and seal with the cover 3.
[0032] The first motor 10 starts and drives the rotating shaft 2 and the connecting plate 4 connected to it to rotate through the meshing transmission of the gear 11, thereby realizing the synchronous flipping operation of the cover 3 and the mixing cylinder 8, so that the cover 3 and the mixing cylinder 8 are flipped to the inverted structure, which is conducive to the subsequent stirring and mixing work.
[0033] The second motor 12 starts, driving the stirring paddle 13 to rotate inside the mixing drum 8 via the rotating rod 17, thereby achieving uniform mixing of the plastic raw materials. Combined with the rotating mixing drum 8, this achieves a highly efficient mixing effect. Simultaneously, the heating tube 14 heats the interior to ensure the plastic raw materials are mixed at a suitable temperature. The structure is simple, enabling efficient mixing and uniform heating of plastic raw materials, which helps improve the mixing efficiency and quality of plastic granules.
[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 utility model.
Claims
1. A heating and mixing device for producing plastic granules, characterized in that, The device includes two L-shaped support frames (1), each with a rotating shaft (2) rotatably connected to the inside of the support frame (1) and near the top. One of the support frames (1) has a drive assembly for rotating the rotating shaft (2) on one side. The opposite ends of the rotating shaft (2) are fixedly connected to a connecting plate (4). A cover (3) is fixedly connected between the connecting plates (4). A stirring assembly and a heating assembly are provided at the bottom of the cover (3). A cylinder (5) is fixedly connected to the bottom of each connecting plate (4). A connecting rod (6) is fixedly connected to the bottom of the piston rod of each cylinder (5). A base plate (7) is fixedly connected to the bottom of the connecting rod (6). A mixing cylinder (8) is provided on the top of the base plate (7) and is arranged vertically opposite to the cover (3). The stirring assembly includes a rotating rod (17) rotatably connected inside the cover (3) and a stirring paddle (13) fixedly connected to the bottom end of the rotating rod (17); The heating assembly includes a heating tube (14) fixedly connected to the bottom of the cover (3).
2. The heating and mixing device for producing plastic granules according to claim 1, characterized in that, The stirring assembly also includes a second motor (12) fixedly connected to the top of the cover (3), and the top end of the rotating rod (17) is fixedly connected to the output shaft of the second motor (12).
3. The heating and mixing device for producing plastic granules according to claim 2, characterized in that, The heating assembly also includes a temperature sensor (15) located at the bottom of the cover (3), and the heating tube (14) is located above the stirring paddle (13) and is configured as a circular coil structure.
4. The heating and mixing device for producing plastic granules according to claim 1, characterized in that, The drive assembly includes a first motor (10) fixedly connected to the support frame (1) on the side away from the connecting plate (4) and two gears (11), one of the gears (11) being fixedly connected to the end of the rotating shaft (2), and the other gear (11) being fixedly connected to the output shaft of the first motor (10), and the two gears (11) being meshed together.
5. A heating and mixing device for producing plastic granules according to claim 4, characterized in that, The base plate (7) has a slot (16) inside, and the mixing cylinder (8) is inserted into the slot (16).
6. The heating and mixing device for producing plastic granules according to claim 5, characterized in that, Both connecting plates (4) have guide rods (9) slidably connected inside, and the bottom ends of the guide rods (9) are fixedly connected to the base plate (7).
Citation Information
Patent Citations
Mixing device for PVC plastic particle production
CN217834274U