A raw material mixing device for plastic woven bag production

Abstract

The utility model discloses a raw material mixing device for plastic woven bag production, including mixing barrel, the first hollow shaft is rotationally installed to mixing barrel top, and the second hollow shaft is rotationally connected through bearing in the first hollow shaft and passes through both ends thereof, and the middle shaft is rotationally connected through bearing in the second hollow shaft and passes through both ends thereof, the first stirring frame that is close to the first hollow shaft bottom fixedly connected with mixing barrel inner wall is located in the first stirring frame in -side second stirring frame that the second hollow shaft bottom fixedly connected with is located, and the third stirring frame that is located in -side second stirring frame middle shaft bottom fixedly connected with is located, the rotation direction of first hollow shaft and middle shaft is same, and the rotation direction of second hollow shaft is opposite with them. In the utility model, through the design of multi -shaft rotation, multiple stirring frame misplacement distribution and the design of the upper and lower staggered arrangement of blade, the efficient, uniform mixing of granular plastic raw materials is realized.

Description

Technical Field

[0001] This utility model relates to the field of plastic woven bag production technology, and in particular to a raw material mixing device for plastic woven bag production. Background Technology

[0002] Plastic woven bags are a common packaging material, usually made of plastic raw materials such as polypropylene (PP). They have the advantages of being lightweight, strong, wear-resistant, moisture-proof, low-cost, and reusable. Therefore, they are widely used in agriculture, industry, construction and other fields, and are often used to package various materials such as fertilizers, grains, building materials, and chemical products.

[0003] In the production of woven bags, the granular plastic raw materials must first be thoroughly mixed to ensure the quality and performance stability of subsequent processing. However, most of the mixing devices currently used can only achieve unidirectional stirring motion, lacking multidirectional or three-dimensional mixing effects. When there are large density differences or uneven particle sizes between raw materials, it will lead to problems such as uneven mixing and low mixing efficiency, which will not only prolong the mixing time but also affect the quality of the final product. Utility Model Content

[0004] The purpose of this utility model is to provide a raw material mixing device for the production of plastic woven bags in order to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A raw material mixing device for producing plastic woven bags includes a frame and a mixing tank fixed thereon. A feed hopper is fixedly connected to the top side of the mixing tank, and a discharge pipe is fixedly connected to the bottom of the mixing tank. A first hollow shaft is rotatably mounted on the top of the mixing tank. A second hollow shaft passing through both ends of the first hollow shaft is rotatably connected to the first hollow shaft via bearings. A central shaft passing through both ends of the second hollow shaft is rotatably connected to the second hollow shaft via bearings. A first stirring frame near the inner wall of the mixing tank is fixedly connected to the bottom end of the first hollow shaft. A second stirring frame located inside the first stirring frame is fixedly connected to the bottom end of the second hollow shaft. A third stirring frame located inside the second stirring frame is fixedly connected to the bottom end of the central shaft. The first hollow shaft and the central shaft rotate in the same direction, and the second hollow shaft rotates in the opposite direction.

[0007] As a further description of the above technical solution:

[0008] A geared motor is fixedly installed on the top of the mixing tank. A driving bevel gear is fixedly sleeved on the output shaft of the geared motor. A first driven bevel gear that meshes with the driving bevel gear is fixedly sleeved on the second hollow shaft. A second driven bevel gear that meshes with the driving bevel gear is fixedly sleeved on the first hollow shaft.

[0009] As a further description of the above technical solution:

[0010] A drive shaft is rotatably mounted on the top of the mixing tank. A first driven wheel and a second driven wheel are fixedly sleeved at both ends of the drive shaft. A third synchronous wheel and a driving wheel are fixedly sleeved on the central shaft and the first hollow shaft, respectively. A first synchronous belt drives the first driven wheel and the driving wheel. A second synchronous belt drives the third synchronous wheel and the second driven wheel.

[0011] As a further description of the above technical solution:

[0012] The first, second, and third stirring frames are staggered around the central axis of the mixing tank, with an included angle of 60° between adjacent stirring frames.

[0013] As a further description of the above technical solution:

[0014] Several blades are arrayed on the inner side of the first stirring frame and on the inner and outer sides of the second and third stirring frames, and the blades on adjacent stirring frames are staggered vertically.

[0015] As a further description of the above technical solution:

[0016] A discharge valve is installed on the discharge pipe.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, when the geared motor is started, the power is transmitted to three rotating shafts through a bevel gear and synchronous belt system. The first hollow shaft and the central shaft drive the first and third stirring frames to rotate in the same direction, while the second hollow shaft drives the second stirring frame to rotate in the opposite direction, forming a circulation and collision of materials in the barrel, thereby improving the mixing efficiency.

[0019] 2. In this utility model, the positions of each stirring frame are staggered and the rotation directions are different, so that the material is continuously stirred, lifted and dispersed in the mixing tank, and strong convection and diffusion mixing occurs. The blade further cuts and disperses the material, enhancing the mixing effect. It is suitable for raw materials with large density differences or uneven particle size. Attached Figure Description

[0020] Figure 1 This diagram shows a three-dimensional structural schematic of a raw material mixing device for producing plastic woven bags according to an embodiment of the present invention;

[0021] Figure 2 It shows Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 A schematic diagram of the internal structure of a mixing tank according to an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the structure of three sets of stirring frames according to an embodiment of the present invention is shown;

[0024] Figure 5 A top view schematic diagram of three sets of stirring frames provided according to an embodiment of the present invention is shown.

[0025] Legend:

[0026] 1. Mixing tank; 2. Feed hopper; 3. Frame; 4. Discharge pipe; 5. Discharge valve; 6. First hollow shaft; 7. Second hollow shaft; 8. Central shaft; 9. Gear motor; 10. First driven bevel gear; 11. Driving bevel gear; 12. Driving pulley; 13. First synchronous belt; 14. First driven pulley; 15. Transmission shaft; 16. Second driven pulley; 17. Second synchronous belt; 18. Third synchronous pulley; 19. First mixing frame; 20. Second mixing frame; 21. Third mixing frame; 22. Blade; 23. Second driven bevel gear. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a raw material mixing device for producing plastic woven bags, including a frame 3 and a mixing tank 1 fixed thereon. A feed hopper 2 is fixedly connected to the top side of the mixing tank 1, and a discharge pipe 4 is fixedly connected to the bottom of the mixing tank 1. A discharge valve 5 is installed on the discharge pipe 4. A first hollow shaft 6 is rotatably installed on the top of the mixing tank 1. A second hollow shaft 7 passing through both ends of the first hollow shaft 6 is rotatably connected to the first hollow shaft 6 through bearings. A central shaft 8 passing through both ends of the second hollow shaft 7 is rotatably connected to the second hollow shaft 7 through bearings. A first stirring frame 19 near the inner wall of the mixing tank 1 is fixedly connected to the bottom end of the first hollow shaft 6. A second stirring frame 20 located inside the first stirring frame 19 is fixedly connected to the bottom end of the second hollow shaft 7. A third stirring frame 21 located inside the second stirring frame 20 is fixedly connected to the bottom end of the central shaft 8. The first hollow shaft 6 and the central shaft 8 rotate in the same direction, while the second hollow shaft 7 rotates in the opposite direction, forming a circulating flow and mutual collision of materials in the tank, thereby improving mixing efficiency.

[0029] Specifically, such as Figure 2 and Figure 3 As shown, a geared motor 9 is fixedly installed on the top of the mixing tank 1. A driving bevel gear 11 is fixedly sleeved on the output shaft of the geared motor 9. A first driven bevel gear 10, which meshes with the driving bevel gear 11, is fixedly sleeved on the second hollow shaft 7. A second driven bevel gear 23, which meshes with the driving bevel gear 11, is fixedly sleeved on the first hollow shaft 6. A transmission shaft 15 is rotatably installed on the top of the mixing tank 1. A first driven wheel 14 and a second driven wheel 16 are fixedly sleeved at both ends of the transmission shaft 15, respectively. A third synchronous wheel 18 and a driving wheel 12 are fixedly sleeved on the central shaft 8 and the first hollow shaft 6, respectively. A first synchronous belt 13 is drivingly connected between the first driven wheel 14 and the driving wheel 12. A second synchronous belt 17 is drivingly connected between the third synchronous wheel 18 and the second driven wheel 16. The geared motor 9 drives the output shaft to rotate the active bevel gear 11. The active bevel gear 11 drives the first driven bevel gear 10 to rotate the second hollow shaft 7. The active bevel gear 11 also drives the second driven bevel gear 23 to rotate the first hollow shaft 6. The first hollow shaft 6 drives the transmission shaft 15 to rotate through the active wheel 12, the first synchronous belt 13 and the first driven wheel 14. The transmission shaft 15 drives the central shaft 8 to rotate through the second driven wheel 16, the second synchronous belt 17 and the third synchronous wheel 18. This achieves the first hollow shaft 6 and the central shaft 8 rotating in the same direction, and the second hollow shaft 7 rotating in the opposite direction, so that the three sets of stirring frames can perform three-dimensional mixing in different directions and at different angles.

[0030] Specifically, such as Figure 4 and Figure 5 As shown, the first stirring frame 19, the second stirring frame 20 and the third stirring frame 21 are staggered around the central axis of the mixing tank 1, and the included angle between adjacent stirring frames is 60°, forming a three-dimensional spatial stirring area.

[0031] Specifically, such as Figure 3 and Figure 4 As shown, several blades 22 are arrayed on the inner side of the first stirring frame 19 and on the inner and outer sides of the second stirring frame 20 and the third stirring frame 21. The blades 22 on adjacent stirring frames are staggered vertically, which enhances the shearing and tumbling effect between materials.

[0032] Working principle: During use, different types or specifications of plastic granules are added to the mixing tank 1 through the feed hopper 2. The geared motor 9 is started, and the power is transmitted to the three rotating shafts through the bevel gear and synchronous belt system. The first hollow shaft 6 and the central shaft 8 drive the first stirring frame 19 and the third stirring frame 21 to rotate in the same direction. The second hollow shaft 7 drives the second stirring frame 20 to rotate in the opposite direction. Because the positions of the stirring frames are staggered and the rotation directions are different, the material is continuously stirred, lifted and dispersed in the mixing tank, and strong convection and diffusion mixing occurs. The blade 22 further cuts and disperses the material, enhancing the mixing effect. It is suitable for raw materials with large density differences or uneven particle size. After mixing is completed, the discharge valve 5 on the discharge pipe 4 is opened to discharge the uniformly mixed material from the bottom. After discharge, it can be cleaned or used for the next batch operation.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A raw material mixing device for producing plastic woven bags, comprising a frame (3) and a mixing tank (1) fixed thereon, wherein a feed hopper (2) is fixedly connected to the top side of the mixing tank (1), and a discharge pipe (4) is fixedly connected to the bottom of the mixing tank (1), characterized in that, The mixing tank (1) is rotatably mounted on the top of a first hollow shaft (6). A second hollow shaft (7) passing through both ends of the first hollow shaft (6) is rotatably connected to the first hollow shaft (6) through bearings. A central shaft (8) passing through both ends of the second hollow shaft (7) is rotatably connected to the second hollow shaft (7) through bearings. A first stirring frame (19) near the inner wall of the mixing tank (1) is fixedly connected to the bottom end of the first hollow shaft (6). A second stirring frame (20) located inside the first stirring frame (19) is fixedly connected to the bottom end of the second hollow shaft (7). A third stirring frame (21) located inside the second stirring frame (20) is fixedly connected to the bottom end of the central shaft (8). The first hollow shaft (6) and the central shaft (8) rotate in the same direction, while the second hollow shaft (7) rotates in the opposite direction.

2. The raw material mixing device for producing plastic woven bags according to claim 1, characterized in that, A geared motor (9) is fixedly installed on the top of the mixing tank (1). A driving bevel gear (11) is fixedly sleeved on the output shaft of the geared motor (9). A first driven bevel gear (10) that meshes with the driving bevel gear (11) is fixedly sleeved on the second hollow shaft (7). A second driven bevel gear (23) that meshes with the driving bevel gear (11) is fixedly sleeved on the first hollow shaft (6).

3. The raw material mixing device for producing plastic woven bags according to claim 2, characterized in that, The mixing tank (1) is rotatably mounted on the top of the transmission shaft (1). The two ends of the transmission shaft (15) are respectively fixedly fitted with a first driven wheel (14) and a second driven wheel (16). The central shaft (8) and the first hollow shaft (6) are respectively fixedly fitted with a third synchronous wheel (18) and a driving wheel (12). The first driven wheel (14) and the driving wheel (12) are connected by a first synchronous belt (13). The third synchronous wheel (18) and the second driven wheel (16) are connected by a second synchronous belt (17).

4. The raw material mixing device for producing plastic woven bags according to claim 1, characterized in that, The first stirring frame (19), the second stirring frame (20) and the third stirring frame (21) are staggered around the central axis of the mixing tank (1), and the included angle between adjacent stirring frames is 60°.

5. The raw material mixing device for producing plastic woven bags according to claim 4, characterized in that, Several blades (22) are arrayed on the inner side of the first stirring frame (19) and the inner and outer sides of the second stirring frame (20) and the third stirring frame (21), and the blades (22) on adjacent stirring frames are staggered vertically.

6. The raw material mixing device for producing plastic woven bags according to claim 1, characterized in that, The discharge pipe (4) is equipped with a discharge valve (5).

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