Anti-accumulation plastic master batch mixing device

Abstract

The utility model relates to the technical field of plastic master batch mixing devices, in particular to an anti-accumulation plastic master batch mixing device which comprises a mixing barrel, a main shaft, an air inlet cover and a driving assembly, the two ends of the material mixing barrel are respectively connected with an end cover, one end cover is provided with a discharging pipe, the two end covers are connected with the same rack, and the material mixing barrel is provided with a feeding pipe; the main shaft is located in the mixing barrel and rotationally connected with the end cover, a spiral plate is arranged on the main shaft, and a plurality of scraping plates are arranged on the spiral plate around the axis of the main shaft in an annular array; the air inlet cover is arranged on the rack, a connecting pipe is arranged at the output end of the air inlet cover, the other end of the connecting pipe is inserted into an inner cavity of the mixing barrel, and a turbine is rotationally arranged in the air inlet cover; the driving assembly is arranged on the rack and connected with the main shaft, and the driving assembly drives the main shaft and the turbine to rotate at the same time in the working state. Through the cooperation of the spiral plate, the scraping plate and the air blowing structure, continuous feeding, stirring and discharging actions are realized, and the raw material mixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic masterbatch mixing devices, and in particular to a plastic masterbatch mixing device that prevents accumulation. Background Technology

[0002] Plastic masterbatch, developed in the 1980s, is a plastic processing aid composed of a large amount of chemical additives, carrier resin, and dispersants. Its core function is to simplify the production process and optimize plastic properties through pre-dispersion. Before processing into finished products, plastic masterbatch requires the mixing of various masterbatches, thus necessitating the use of mixing equipment.

[0003] Chinese Patent CN220242027U discloses a plastic masterbatch mixing device, including a support, a mixing cylinder rotatably mounted on the support, and a motor assembly mounted on the support for driving the mixing cylinder to rotate. The mixing cylinder is equipped with a turning component. When the mixing cylinder rotates around a specific direction, the masterbatch flows inside the mixing cylinder. The turning component has a blocking surface that hinders the flow of the masterbatch. When the masterbatch passes through the blocking surface, the blocking surface turns over the bottom layer of masterbatch. As the mixing cylinder rotates, the bottom layer of masterbatch is turned over to the top layer, which can effectively prevent the phenomenon of concentrated distribution of the same masterbatch, thereby effectively improving the mixing effect of the device.

[0004] However, the device still has shortcomings: it requires quantitative feeding and thorough mixing before discharging, and cannot achieve continuous feeding and discharging, resulting in low mixing efficiency of plastic masterbatch. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a plastic masterbatch mixing device that prevents accumulation.

[0006] The technical solution of this utility model is: a plastic masterbatch mixing device for preventing accumulation, including a mixing cylinder, with an end cap connected to each end of the mixing cylinder, a discharge pipe connected to the inside of the mixing cylinder on one of the end caps, the two end caps connected to the same frame, and multiple feed pipes connected to the inside of the mixing cylinder at the end away from the discharge pipe.

[0007] The main shaft is located inside the mixing cylinder and is rotatably connected to both end caps. A spiral plate is provided on the main shaft, which slides in contact with the inner wall of the mixing cylinder. Several scrapers are arranged in a ring array around the axis of the main shaft on the spiral plate, and the scrapers are slidably connected to the inner wall of the mixing cylinder.

[0008] An air intake hood is mounted on the frame. A connecting pipe is installed at the output end of the air intake hood, and the other end of the connecting pipe is inserted into the inner cavity of the mixing cylinder along the bottom. A turbine is installed inside the air intake hood for rotation.

[0009] And a drive assembly, which is mounted on the frame and connected to the spindle, and drives the spindle and the turbine to rotate simultaneously when in operation.

[0010] Preferably, the end cap where the discharge pipe is located is provided with a discharge hole that communicates with the inner cavity of the mixing cylinder. The lower edge of the discharge hole is not higher than the bottom surface of the inner cavity of the mixing cylinder, and the discharge pipe covers the outside of the discharge hole.

[0011] Preferably, a one-way valve is installed on the feed pipe to control the one-way flow of the feed pipe into the mixing cylinder.

[0012] Preferably, the bottom of the mixing cylinder is provided with an air inlet that communicates with its interior, and a filter screen A with the same curvature as the inner wall of the mixing cylinder is provided on the inner side of the air inlet. An air blowing hood is provided on the mixing cylinder to cover the outside of the air inlet, and the output end of the connecting pipe is inserted into the air blowing hood.

[0013] Preferably, a filter B is provided on the inside of the air intake of the air intake shroud.

[0014] Preferably, the drive assembly includes pulley A, shaft A, pulley B, synchronous belt A, motor, shaft B, pulley C, pulley D, and synchronous belt B. Pulley A is coaxially connected to the end of the main shaft, shaft A is rotatably connected to the frame, pulleys B and D are both coaxially connected to shaft A, and pulleys A and B are connected by synchronous belt A. The motor body is mounted on the frame, and the output end of the motor is connected to shaft A. Shaft B is rotatably mounted on the frame and coaxially connected to the turbine. Pulley C is coaxially connected to shaft B, and pulley C and pulley D are connected by synchronous belt B.

[0015] Preferably, the outer diameter of pulley A is larger than that of pulley B, and the outer diameter of pulley C is smaller than that of pulley D.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] By incorporating a spiral plate on the main shaft, with multiple scrapers arranged in a circular array around the shaft's axis, and both the outer walls of the scrapers and the spiral plate slidingly connected to the inner wall of the mixing cylinder, the spiral plate propels the raw material as the main shaft rotates, while the scrapers continuously agitate the material, promoting uniform mixing. Furthermore, a turbine-driven airflow system blows high-speed air upwards from the bottom of the mixing cylinder, further dispersing the masterbatch scraped and ejected by the scrapers, thus enhancing the mixing efficiency. This system, combined with a one-way valve on the feed pipe, allows the flowing air to move the mixed masterbatch towards the discharge pipe for discharge, achieving continuous feeding and uniform mixing of the raw materials. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the mixing cylinder;

[0020] Figure 3 This is a schematic diagram of the mixing cylinder.

[0021] Figure 4 A schematic diagram of the connection structure of the components on the spindle;

[0022] Figure 5 A schematic diagram of the connection structure between the main shaft, turbine, and motor.

[0023] Reference numerals in the attached diagram: 1. Frame; 2. Mixing cylinder; 201. Filter screen A; 3. End cap; 301. Discharge hole; 4. Discharge pipe; 5. Feed pipe; 501. One-way valve; 6. Main shaft; 7. Spiral plate; 8. Scraper; 9. Pulley A; 10. Rotating shaft A; 11. Pulley B; 12. Synchronous belt A; 13. Motor; 14. Air blowing hood; 15. Air inlet hood; 16. Connecting pipe; 17. Rotating shaft B; 18. Turbine; 19. Pulley C; 20. Pulley D; 21. Synchronous belt B. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-5As shown, this utility model proposes a plastic masterbatch mixing device to prevent accumulation, including a mixing cylinder 2, a main shaft 6, an air inlet hood 15, and a drive assembly. Each end of the mixing cylinder 2 is connected to an end cap 3. One end cap 3 has a discharge pipe 4 communicating with the interior of the mixing cylinder 2. The two end caps 3 are connected to the same frame 1. Multiple feed pipes 5 communicating with the interior of the mixing cylinder 2 are provided at the end of the mixing cylinder 2 furthest from the discharge pipe 4. The end cap 3 containing the discharge pipe 4 has a discharge hole 301 communicating with the interior of the mixing cylinder 2. The lower edge of the discharge hole 301 is not higher than the bottom surface of the interior of the mixing cylinder 2, and the discharge pipe 4 covers the outside of the discharge hole 301. A one-way valve 501 is provided on each feed pipe 5 to control unidirectional flow into the mixing cylinder 2, and a flow valve is provided on each feed pipe 5. The mixing cylinder 2 has an air inlet at its bottom, which communicates with its interior. A filter screen A201, with a curvature matching the inner wall of the mixing cylinder 2, is installed inside the air inlet. An air blowing hood 14 covers the outside of the air inlet on the mixing cylinder 2. A main shaft 6 is located inside the mixing cylinder 2 and is rotatably connected to both end caps 3. A spiral plate 7, which slides in contact with the inner wall of the mixing cylinder 2, is installed on the main shaft 6. Several scrapers 8 are arranged in a circular array around the axis of the main shaft 6, and the scrapers 8 are slidably connected to the inner wall of the mixing cylinder 2. An air inlet hood 15 is mounted on the frame 1. A connecting pipe 16 is installed at the output end of the air inlet hood 15, and the output end of the connecting pipe 16 is inserted into the air blowing hood 14. A turbine 18 is rotatably mounted inside the air inlet hood 15, and a filter screen B is installed inside the air inlet of the air inlet hood 15. A drive assembly is mounted on the frame 1 and connected to the main shaft 6. During operation, the drive assembly simultaneously drives the main shaft 6 and the turbine 18 to rotate.

[0026] In this embodiment, according to the proportion of different component masterbatches, the opening degree of the flow valve in each feed pipe 5 is set, and different plastic masterbatches are added into the mixing cylinder from different feed pipes 5. The drive assembly is started, and the drive assembly drives the main shaft 6 to rotate at low speed and drives the turbine 18 to rotate at high speed. As the main shaft 6 drives the spiral plate 7 and scraper 8 to rotate, the raw material is pushed towards the discharge pipe 4 while being lifted and scattered in a cycle, so that the raw material is quickly mixed during the movement. The turbine 18 sends air into the air blowing hood 14 under high-speed rotation. The high-speed airflow further disperses the scattered masterbatches during the upward process, improving its mixing efficiency. The spiral plate 7 and the flowing air work together to guide the mixed masterbatches to the discharge pipe 4 and discharge them.

[0027] Example 2

[0028] like Figure 1 , Figure 4 and Figure 5As shown, this utility model proposes an anti-accumulation plastic masterbatch mixing device. This embodiment discloses a specific structure of a drive assembly, which includes pulley A9, shaft A10, pulley B11, synchronous belt A12, motor 13, shaft B17, pulley C19, pulley D20, and synchronous belt B21. Pulley A9 is coaxially connected to the end of the main shaft 6. Shaft A10 is rotatably connected to the frame 1. Pulleys B11 and D20 are both coaxially connected to shaft A10. Pulleys A9 and B11 are connected by synchronous belt A12. The body of motor 13 is mounted on the frame 1, and the output end of motor 13 is connected to shaft A10. Shaft B17 is rotatably mounted on the frame 1 and coaxially connected to turbine 18. Pulley C19 is coaxially connected to shaft B17. Pulley C19 and pulley D20 are connected by synchronous belt B21. The outer diameter of pulley A9 is greater than that of pulley B11, and the outer diameter of pulley C19 is less than that of pulley D20.

[0029] In this embodiment, motor 13 drives shaft A10 to rotate, shaft A10 drives pulleys B11 and D20 to rotate, and pulley B11 drives pulley A9 and main shaft 6 to rotate via synchronous belt A12. Since the outer diameter of pulley A9 is larger than that of pulley B11, the main shaft 6 rotates at a slower speed but with a larger torque. The rotation of pulley D20 drives pulley C19 and shaft B17 to rotate via synchronous belt B21. Since the outer diameter of pulley C19 is smaller than that of pulley D20, shaft B17 and turbine 18 rotate at high speed. By utilizing the different transmission ratios between pulleys of different diameters, one motor 13 can simultaneously drive the main shaft 6 and turbine 18 to rotate at different speeds, reducing the energy consumption of the equipment.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A plastic masterbatch mixing device for preventing accumulation, characterized in that, include: Mixing cylinder (2), with an end cap (3) connected to each end of the mixing cylinder (2), and a discharge pipe (4) connected to the inside of the mixing cylinder (2) on one end cap (3), the two end caps (3) are connected to the same frame (1), and multiple feed pipes (5) connected to the inside of the mixing cylinder (2) are provided at the end away from the discharge pipe (4); The main shaft (6) is located inside the mixing cylinder (2) and is rotatably connected to both end caps (3). The main shaft (6) is provided with a spiral plate (7) that slides in contact with the inner wall of the mixing cylinder (2). Several scrapers (8) are arranged in a ring array around the axis of the main shaft (6). The scrapers (8) are slidably connected to the inner wall of the mixing cylinder (2). An air intake hood (15) is installed on the frame (1). A connecting pipe (16) is installed at the output end of the air intake hood (15). The other end of the connecting pipe (16) is inserted into the inner cavity of the mixing cylinder (2) along the bottom. A turbine (18) is installed inside the air intake hood (15). And a drive assembly, which is mounted on the frame (1) and connected to the spindle (6). In operation, the drive assembly simultaneously drives the spindle (6) and the turbine (18) to rotate.

2. The anti-accumulation plastic masterbatch mixing device according to claim 1, characterized in that, The end cap (3) where the discharge pipe (4) is located is provided with a discharge hole (301) that communicates with the inner cavity of the mixing cylinder (2). The lower edge of the discharge hole (301) is not higher than the bottom surface of the inner cavity of the mixing cylinder (2), and the discharge pipe (4) covers the outside of the discharge hole (301).

3. The anti-accumulation plastic masterbatch mixing device according to claim 1, characterized in that, A one-way valve (501) is installed on the feed pipe (5) to control the one-way flow of the feed pipe (5) into the mixing cylinder (2).

4. The anti-accumulation plastic masterbatch mixing device according to claim 1, characterized in that, The bottom of the mixing cylinder (2) is provided with an air inlet that communicates with its interior. A filter screen A (201) with the same curvature as the inner wall of the mixing cylinder (2) is provided on the inner side of the air inlet. An air blowing hood (14) is provided on the mixing cylinder (2) with the air inlet covered outside. The output end of the connecting pipe (16) is inserted into the air blowing hood (14).

5. The anti-accumulation plastic masterbatch mixing device according to claim 1, characterized in that, A filter B is installed inside the air inlet of the air intake hood (15).

6. The anti-accumulation plastic masterbatch mixing device according to claim 1, characterized in that, The drive assembly includes pulley A (9), shaft A (10), pulley B (11), synchronous belt A (12), motor (13), shaft B (17), pulley C (19), pulley D (20), and synchronous belt B (21). Pulley A (9) is coaxially connected to the end of the main shaft (6). Shaft A (10) is rotatably connected to the frame (1). Pulleys B (11) and D (20) are both coaxially connected to shaft A (10). A(9) and pulley B(11) are connected by synchronous belt A(12). The motor (13) body is mounted on the frame (1). The output end of the motor (13) is connected to the rotating shaft A(10). The rotating shaft B(17) is rotatably mounted on the frame (1) and coaxially connected to the turbine (18). The pulley C(19) is coaxially connected to the rotating shaft B(17). The pulley C(19) and pulley D(20) are connected by synchronous belt B(21).

7. The anti-accumulation plastic masterbatch mixing device according to claim 6, characterized in that, The outer diameter of pulley A (9) is greater than that of pulley B (11), and the outer diameter of pulley C (19) is less than that of pulley D (20).

Images