Plastic film production raw material stirring device

Abstract

The utility model discloses a plastic film production raw material stirring device which comprises a stirring tank, a stock bin is fixedly installed at the bottom of the stirring tank, the stock bin is communicated with the stirring tank, a discharging pipe is arranged at the position, corresponding to the stock bin, of the bottom of the stirring tank in a communicated mode, and plastic particles are poured into the stock bin. Plastic particles in the feeding bin are conveyed into the stirring tank through rotation of the screw conveying assembly, when materials exceed the feeding port, the materials in the stirring tank can enter the fixed cylinder from the feeding port, and the materials can be lifted to the top of the fixed cylinder from the interior of the stirring tank and discharged along with rotation of the screw conveying assembly. Materials at different heights in the stirring tank can be lifted and discharged from the top of the fixed barrel, the mixing effect on the materials in the stirring tank is improved, the screw conveying assembly can drive the rotating shaft to rotate while rotating, then the stirring rod can be driven to stir and mix the materials in the stirring tank, and the stirring efficiency is improved. And the mixing effect of the materials in the stirring tank is improved again.

Description

Technical Field

[0001] This utility model relates to the field of raw material processing technology for plastic film production, specifically a mixing device for raw materials in plastic film production. Background Technology

[0002] Plastic film is a thin film material made of plastic, usually made of polymer materials such as polyethylene, polypropylene, and polyvinyl chloride. It is used for packaging and as a film layer. The raw materials for plastic film production are generally in granular form. During the raw material processing, different plastic granules are mixed evenly in proportion. Therefore, a stirring device is required to stir and mix the different plastic granules.

[0003] In existing technologies, plastic granules are often mixed using vertical mixing devices. This can achieve uniform mixing through automatic feeding and repeated feeding and unloading steps. However, in practice, vertical mixing devices do not have a mixing mechanism. They rely solely on a screw feeding structure and gravity to mix the plastic granules, resulting in poor mixing. Furthermore, during the feeding process after the discharge of plastic granules, only the granules near the discharge port are discharged, leading to equally poor mixing. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for raw materials in plastic film production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for raw materials in plastic film production, comprising a mixing tank, a hopper fixedly installed at the bottom of the mixing tank, the hopper being connected to the mixing tank, a discharge pipe connected to the bottom of the mixing tank corresponding to the position of the hopper, a fixed cylinder fixedly installed at the middle position of the mixing tank, a screw conveyor assembly installed inside the fixed cylinder, a feed inlet equally spaced at the middle of the fixed cylinder, and a rotating shaft symmetrically mounted on the top of the mixing tank via bearings, with mixing rods fixedly mounted equally spaced on the outer side of the rotating shaft.

[0006] As a further preferred embodiment of this technical solution, a driven pulley is fixedly installed at the top of the screw conveyor assembly, passing through the top of the mixing tank. A motor is fixedly installed on the outer side of the top of the mixing tank, and a driving pulley is fixedly installed at the output end of the motor. A transmission belt is installed between the driving pulley and the driven pulley.

[0007] As a further preferred embodiment of this technical solution, a driven gear is fixedly installed on the top of the rotating shaft, a driving gear is fixedly installed on the top of the screw conveyor assembly at a height corresponding to the driven gear, and a transmission gear is symmetrically mounted on the top of the mixing tank via a shaft pin, the transmission gear meshing with both the driving gear and the driven gear simultaneously.

[0008] As a further preferred embodiment of this technical solution, a screw stirring blade is fixedly installed on the outer side of the rotating shaft.

[0009] As a further preferred embodiment of this technical solution, a fixing plate is fixedly installed on the inner wall of the mixing tank at the bottom position corresponding to the rotating shaft, and the bottom end of the rotating shaft is rotatably connected to the fixing plate through a bearing.

[0010] As a further preferred embodiment of this technical solution, a discharge pipe is connected to the bottom end of the mixing tank.

[0011] As a further preferred embodiment of this technical solution, a controller is fixedly installed on the outside of the mixing tank.

[0012] This utility model provides a mixing device for raw materials in plastic film production, which has the following advantages:

[0013] (1) This utility model pours different kinds of plastic granules into the hopper. The granules in the hopper will enter the bottom of the mixing tank. By driving the screw conveyor to rotate, the plastic granules at the bottom of the mixing tank will rise along the fixed cylinder to the top of the mixing tank and be discharged. During the continuous feeding of plastic granules, the material will be discharged from the inlet and the top of the fixed cylinder. When the material covers the inlet, most of the material will be discharged from the top of the fixed cylinder. When the material exceeds the inlet, the material inside the mixing tank can enter the fixed cylinder from the inlet. With the rotation of the screw conveyor, the material can be raised from the inside of the mixing tank to the top of the fixed cylinder and discharged. The material at different heights inside the mixing tank can be lifted and discharged from the top of the fixed cylinder, which improves the mixing effect of the material inside the mixing tank.

[0014] (2) By driving the screw conveyor assembly to rotate, the present invention drives the shaft to rotate through the simultaneous meshing of the transmission gear with the active gear and the driven gear, thereby driving the stirring rod to stir and mix the material inside the mixing tank, thereby further improving the mixing effect of the material inside the mixing tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0017] Figure 3 This is a second partial structural schematic diagram of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] In the diagram: 1. Mixing tank; 2. Hopper; 3. Discharge pipe; 4. Fixed cylinder; 5. Screw conveyor assembly; 6. Feed inlet; 7. Rotary shaft; 8. Mixing rod; 9. Driven pulley; 10. Motor; 11. Drive pulley; 12. Transmission belt; 13. Driven gear; 14. Drive gear; 15. Transmission gear; 16. Screw mixing blade; 17. Fixed plate; 18. Discharge pipe; 19. Controller. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a mixing device for raw materials in plastic film production includes a mixing tank 1. A hopper 2 is fixedly installed at the bottom of the mixing tank 1, and the hopper 2 is connected to the mixing tank 1. A discharge pipe 3 is connected to the bottom of the mixing tank 1 corresponding to the position of the hopper 2. A fixed cylinder 4 is fixedly installed in the middle of the mixing tank 1. A screw conveyor assembly 5 is installed inside the fixed cylinder 4. A feed inlet 6 is equidistantly opened in the middle of the fixed cylinder 4. A rotating shaft 7 is symmetrically mounted on the top of the mixing tank 1 via a bearing. A mixing rod 8 is fixedly installed at equidistant distances on the outer side of the rotating shaft 7. A discharge pipe 18 is connected to the bottom of the mixing tank 1. A controller 19 is fixedly installed on the outer side of the mixing tank 1. Different types of plastic granules are poured into the hopper 2. The granules inside the hopper 2 will enter the bottom of the mixing tank 1, driving the screw conveyor assembly 5 to rotate. The screw conveyor 5 moves the plastic granules at the bottom of the mixing tank 1 up to the top of the mixing tank 1 and discharges them. During the continuous feeding of plastic granules, the material will be discharged from the inlet 6 and the top of the fixed cylinder 4. When the material covers the inlet 6, most of the material will be discharged from the top of the fixed cylinder 4. When the material exceeds the inlet 6, the material inside the mixing tank 1 can enter the fixed cylinder 4 from the inlet 6. With the rotation of the screw conveyor 5, the material can be raised from the inside of the mixing tank 1 to the top of the fixed cylinder 4 and discharged. The material at different heights inside the mixing tank 1 can be lifted and discharged from the top of the fixed cylinder 4, which improves the mixing effect of the material inside the mixing tank 1. When the screw conveyor 5 rotates, it can drive the rotating shaft 7 to rotate, which in turn can drive the stirring rod 8 to stir and mix the material inside the mixing tank 1, further improving the mixing effect of the material inside the mixing tank 1.

[0022] like Figures 1 to 4 As shown, the top of the screw conveyor assembly 5 passes through the top of the mixing tank 1 and is fixedly installed with a driven pulley 9. A motor 10 is fixedly installed on the outer side of the top of the mixing tank 1. A drive pulley 11 is fixedly installed at the output end of the motor 10. A transmission belt 12 is installed between the drive pulley 11 and the driven pulley 9.

[0023] The drive belt 12 drives the screw conveyor assembly 5 to rotate by transmitting power between the drive pulley 11 and the driven pulley 9.

[0024] like Figures 1 to 4 As shown, a driven gear 13 is fixedly installed on the top of the rotating shaft 7, and a driving gear 14 is fixedly installed on the top of the screw conveyor assembly 5 at the height position corresponding to the driven gear 13. A transmission gear 15 is symmetrically rotated and installed on the top of the mixing tank 1 through a shaft pin. The transmission gear 15 meshes with the driving gear 14 and the driven gear 13 simultaneously.

[0025] As the screw conveyor assembly 5 rotates, the drive gear 15 meshes with the driving gear 14 and the driven gear 13, which in turn drives the rotating shaft 7 to rotate.

[0026] like Figures 1 to 4 As shown, a screw stirring blade 16 is fixedly installed on the outer side of the rotating shaft 7.

[0027] During the rotation of the rotating shaft 7, the screw stirring blade 16 can be driven to rotate, which can agitate the materials inside the mixing tank 1 and further improve the mixing effect of the materials.

[0028] like Figures 1 to 4 As shown, a fixing plate 17 is fixedly installed on the inner wall of the mixing tank 1 at the bottom position of the rotating shaft 7, and the bottom end of the rotating shaft 7 is rotatably connected to the fixing plate 17 through a bearing.

[0029] The rotation of the rotating shaft 7 can be positioned by setting the fixing plate 17, thereby improving the stability of the rotating shaft 7.

[0030] This utility model provides a mixing device for raw materials in plastic film production, the specific working principle of which is as follows:

[0031] When the device is in use, different types of plastic granules are poured into the hopper 2. The granules inside the hopper 2 will enter the bottom of the mixing tank 1. The controller 19 controls the rotation of the drive pulley 11, and the transmission belt 12 drives the drive pulley 11 and the driven pulley 9 to rotate the screw conveyor assembly 5. The rotation of the screw conveyor assembly 5 can make the plastic granules at the bottom of the mixing tank 1 rise along the fixed cylinder 4 to the top of the mixing tank 1 and be discharged. During the continuous feeding of plastic granules, the material will be discharged from the inlet 6 and the top of the fixed cylinder 4. When the material covers the inlet 6, most of the material will be discharged from the top of the fixed cylinder 4. When the material exceeds the feed inlet 6, the material inside the mixing tank 1 can enter the fixed cylinder 4 through the feed inlet 6. As the screw conveyor assembly 5 rotates, the material can be lifted from inside the mixing tank 1 to the top of the fixed cylinder 4 and discharged. This can lift materials of different heights inside the mixing tank 1 and discharge them from the top of the fixed cylinder 4, improving the mixing effect of the material inside the mixing tank 1. At the same time as the screw conveyor assembly 5 rotates, the drive gear 15 meshes with the drive gear 14 and the driven gear 13, which will drive the rotating shaft 7 to rotate, thereby driving the stirring rod 8 to stir and mix the material inside the mixing tank 1, further improving the mixing effect of the material inside the mixing tank 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for raw materials in plastic film production, comprising a mixing tank (1), a hopper (2) fixedly installed at the bottom of the mixing tank (1), the hopper (2) being connected to the mixing tank (1), a discharge pipe (3) being connected to the bottom of the mixing tank (1) at a position corresponding to the hopper (2), a fixed cylinder (4) fixedly installed at the middle position of the mixing tank (1), and a screw conveyor assembly (5) installed inside the fixed cylinder (4), characterized in that: The fixed cylinder (4) has a feed inlet (6) at equal intervals in the middle. The top of the mixing tank (1) is symmetrically mounted with a rotating shaft (7) through a bearing. A stirring rod (8) is fixedly mounted at equal intervals on the outer side of the rotating shaft (7).

2. The mixing device for raw materials in plastic film production according to claim 1, characterized in that: The top of the screw conveyor assembly (5) is fixedly installed with a driven pulley (9) through the top of the mixing tank (1). A motor (10) is fixedly installed on the outer side of the top of the mixing tank (1). A drive pulley (11) is fixedly installed at the output end of the motor (10). A transmission belt (12) is installed between the drive pulley (11) and the driven pulley (9).

3. The mixing device for raw materials in plastic film production according to claim 2, characterized in that: A driven gear (13) is fixedly installed on the top of the rotating shaft (7). A driving gear (14) is fixedly installed on the top of the screw conveyor assembly (5) at the height position corresponding to the driven gear (13). A transmission gear (15) is symmetrically rotated on the top of the mixing tank (1) through a shaft pin. The transmission gear (15) meshes with the driving gear (14) and the driven gear (13) at the same time.

4. The mixing device for raw materials in plastic film production according to claim 3, characterized in that: A screw stirring blade (16) is fixedly installed on the outside of the rotating shaft (7).

5. The mixing device for raw materials in plastic film production according to claim 4, characterized in that: A fixing plate (17) is fixedly installed on the inner wall of the mixing tank (1) at the bottom position of the rotating shaft (7). The bottom end of the rotating shaft (7) is rotatably connected to the fixing plate (17) through a bearing.

6. The mixing device for raw materials in plastic film production according to claim 5, characterized in that: The bottom end of the mixing tank (1) is connected to a feed pipe (18).

7. The mixing device for raw materials in plastic film production according to claim 6, characterized in that: A controller (19) is fixedly installed on the outside of the mixing tank (1).

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