Polypropylene mixer

Abstract

The utility model relates to the technical field of mixers, in particular to a polypropylene mixer. Comprising a rack, a mixing barrel is arranged on the rack, the cross section of the lower portion of the mixing barrel is semicircular, the top of the mixing barrel is open, a stirring shaft is rotationally connected into the mixing barrel, a first stirring blade and a third stirring blade are arranged on the two sides of the stirring shaft respectively, a second stirring blade is arranged in the middle of the stirring shaft, and a cavity penetrating through one end of the stirring shaft is formed in the stirring shaft; an inner shaft is rotationally connected into the cavity, a first bevel gear is arranged at one end of the inner shaft, a stirring assembly is further rotationally connected to the middle of the stirring shaft, a second bevel gear meshed with the first bevel gear is arranged at one end of the stirring assembly, and the stirring shaft and the inner shaft are in transmission connection with the first motor and the second motor respectively. The stirring device disclosed by the utility model has relatively high stirring efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a polypropylene mixer. Background Art

[0002] When producing products from polypropylene, it is often necessary to first add various additives to the granular polypropylene raw material, and then mix the additives with the polypropylene granules using a mixer. Patent application number 202320116541.5 discloses a modified polypropylene raw material mixer, which includes a mounting frame, a mixing and stirring tank fixed to the top of the mounting frame, and a stirring assembly provided in the mixing and stirring tank. The stirring assembly includes a drive shaft, the outer wall of which is fixedly connected to propeller blade 1 and propeller blade 2. The propeller blade 1 and propeller blade 2 are used to stir simultaneously, and the spiral directions of propeller blade 1 and propeller blade 2 are opposite, so the mixing is uniform and the stirring efficiency is high. The present application provides a mixer with a different structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a polypropylene mixer in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a polypropylene mixer, comprising a frame, a mixing drum is provided on the frame, the cross-section of the lower portion of the mixing drum is semicircular and the top is open, a horizontal stirring shaft is rotatably connected in the mixing drum, a first stirring blade and a third stirring blade are respectively provided on both sides of the stirring shaft, and a second stirring blade is provided in the middle of the stirring shaft. When the stirring shaft rotates, the first stirring blade and the third stirring blade can respectively push the raw materials on both sides of the mixing drum to the middle of the mixing drum, and the second stirring blade can push the raw materials in the middle of the mixing drum to both sides of the mixing drum, a cavity passing through one end of the stirring shaft is provided, an inner shaft is rotatably connected in the cavity, a first bevel gear is provided at one end of the inner shaft, and a stirring assembly is also rotatably connected in the middle of the stirring shaft, and a second bevel gear meshing with the first bevel gear is provided at one end of the stirring assembly, and the stirring shaft and the inner shaft are respectively transmission-connected to the first motor and the second motor.

[0005] To further optimize the technical solution, the end of the first stirring blade close to the end of the mixing barrel is located in front of the end of the first stirring blade away from the end of the mixing barrel in the rotation direction.

[0006] To further optimize the technical solution, the end of the third stirring blade close to the end of the mixing barrel is located in front of the end of the third stirring blade away from the end of the mixing barrel in the rotation direction.

[0007] To further optimize the technical solution, the second stirring blades gradually expand toward both sides in the direction from the front to the rear in the rotation direction.

[0008] To further optimize the technical solution, a shaft barrel is provided in the middle of the stirring shaft, the axis of the shaft barrel is perpendicular to the axis of the stirring shaft, the stirring assembly includes a main shaft, the main shaft is rotatably connected to the shaft barrel, the second bevel gear is provided at the inner end of the main shaft, and the part of the main shaft located outside the shaft barrel is provided with multiple blades.

[0009] Compared with the prior art, the present invention has the following advantages: a first stirring blade and a third stirring blade are respectively provided on both sides of the stirring shaft, which can push the raw materials to the middle of the mixing barrel; a second stirring blade is provided in the middle of the stirring shaft, which can push the raw materials in the middle of the mixing barrel to both sides; the middle of the stirring shaft is also rotatably connected to a stirring component, and the stirring component rotates around the axis of the stirring shaft while also rotating around its own axis, thereby having a relatively high stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a polypropylene mixer.

[0011] Figure 2 Schematic diagram of the structure of the stirring shaft.

[0012] Figure 3 It is a cross-sectional view of a polypropylene mixer in another state.

[0013] In the figure: 1. Frame; 2. Mixing barrel; 3. Stirring shaft; 31. First stirring blade; 32. Second stirring blade; 33. Third stirring blade; 34. Stirring assembly; 35. Cavity; 36. Shaft barrel; 4. First motor; 5. Second motor; 6. Inner shaft. DETAILED DESCRIPTION

[0014] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0015] Specific implementation method: Figure 1-3As shown, a polypropylene mixer comprises a frame 1, a mixing barrel 2 is provided on the frame 1, the cross section of the lower portion of the mixing barrel 2 is semicircular and the top is open, and when mixing, the opening is covered with an upper cover, and the bottom of the mixing barrel 2 is provided with an openable and closable discharge port, a horizontal stirring shaft 3 is rotatably connected in the mixing barrel 2, a first stirring blade 31 and a third stirring blade 33 are respectively provided on both sides of the stirring shaft 3, and a second stirring blade 32 is provided in the middle of the stirring shaft 3, when the stirring shaft 3 rotates, the first stirring blade 31 and the third stirring blade 33 can respectively push the raw materials on both sides of the mixing barrel 2 to the middle of the mixing barrel 2, and the second stirring blade 32 can push the raw materials in the middle of the mixing barrel 2 to both sides of the mixing barrel 2, thereby mixing the raw materials in the mixing barrel 2, and the stirring shaft 3 A cavity 35 is provided inside the mixing shaft 3 that passes through one end thereof, and an inner shaft 6 is rotatably connected in the cavity 35. A first bevel gear is provided at one end of the inner shaft 6. A stirring assembly 34 is also rotatably connected to the middle portion of the mixing shaft 3. Preferably, the stirring assembly 34 is located on the side of the mixing shaft 3 away from the second stirring blade 32. A second bevel gear meshing with the first bevel gear is provided at one end of the stirring assembly 34. The mixing shaft 3 and the inner shaft 6 are respectively connected to the first motor 4 and the second motor 5. The rotation speeds of the mixing shaft 3 and the inner shaft 6 are different (preferably, the clockwise directions of the two rotations are opposite), so that when the mixing shaft 3 and the inner shaft 6 rotate, the stirring assembly 34 rotates around the axis of the mixing shaft 3 and also around its own axis, stirring the raw materials in the mixing barrel 2, thereby improving the stirring efficiency. Combined with Figure 3 As shown, the first stirring blade 31 , the second stirring blade 32 , the third stirring blade 33 and the stirring assembly 34 are preferably distributed at equal angles outside the stirring shaft 3 . When mixing materials, the stirring shaft 3 rotates counterclockwise.

[0016] The end of the first stirring blade 31 close to the end of the mixing barrel 2 is located in front of the end away from the end of the mixing barrel 2 in the rotation direction, so that when the stirring shaft 3 rotates, the first stirring blade 31 can push the raw materials where it is located to the middle of the mixing barrel 2.

[0017] The end of the third stirring blade 33 close to the end of the mixing barrel 2 is located in front of the end away from the end of the mixing barrel 2 in the rotation direction, so that when the stirring shaft 3 rotates, the third stirring blade 33 can push the raw materials where it is located to the middle of the mixing barrel 2.

[0018] The second stirring blades 32 gradually expand toward both sides from the front to the rear in the direction of rotation. When the stirring shaft 3 rotates, the second stirring blades 32 can push the raw materials located thereon toward both sides of the mixing barrel 2. The width of the second stirring blades 32 at their widest point is greater than the distance between the first stirring blades 31 and the third stirring blades 33.

[0019] A shaft barrel 36 is provided in the middle of the stirring shaft 3. The axis of the shaft barrel 36 is perpendicular to the axis of the stirring shaft 3. The inner hole of the shaft barrel 36 is connected to the cavity 35 inside the stirring shaft 3. The stirring assembly 34 includes a main shaft, which is rotatably connected to the shaft barrel 36. The second bevel gear is provided at the inner end of the main shaft. The portion of the main shaft located outside the shaft barrel 36 is provided with multiple paddles, which provide stirring. The position and length of the paddles should be appropriate so that when the stirring assembly 34 moves, the paddles do not contact the inner wall of the mixing drum 2.

[0020] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A polypropylene mixer, comprising a frame (1), characterized in that: A mixing barrel (2) is provided on the frame (1). The cross section of the lower portion of the mixing barrel (2) is semicircular and the top is open. A horizontal stirring shaft (3) is rotatably connected in the mixing barrel (2). A first stirring blade (31) and a third stirring blade (33) are respectively provided on both sides of the stirring shaft (3). A second stirring blade (32) is provided in the middle of the stirring shaft (3). When the stirring shaft (3) rotates, the first stirring blade (31) and the third stirring blade (33) can push the raw materials on both sides of the mixing barrel (2) to the middle of the mixing barrel (2), and the second stirring blade (32) can push the raw materials on both sides of the mixing barrel (2) to the middle of the mixing barrel (2). (32) can push the raw materials in the middle of the mixing barrel (2) to both sides of the mixing barrel (2), the stirring shaft (3) is provided with a cavity (35) penetrating one end thereof, the cavity (35) is rotatably connected to an inner shaft (6), one end of the inner shaft (6) is provided with a first bevel gear, the middle of the stirring shaft (3) is also rotatably connected to a stirring assembly (34), one end of the stirring assembly (34) is provided with a second bevel gear meshing with the first bevel gear, the stirring shaft (3) and the inner shaft (6) are respectively connected to the first motor (4) and the second motor (5) in a transmission manner.

2. A polypropylene mixer according to claim 1, characterized in that: The end of the first stirring blade (31) close to the end of the mixing barrel (2) is located in front of the end thereof away from the end of the mixing barrel (2) in the direction of rotation.

3. A polypropylene mixer according to claim 1, characterized in that: The end of the third stirring blade (33) close to the end of the mixing barrel (2) is located in front of the end thereof away from the end of the mixing barrel (2) in the direction of rotation.

4. A polypropylene mixer according to claim 1, characterized in that: The second stirring blade (32) gradually expands toward both sides in a direction from the front to the rear in the rotation direction.

5. A polypropylene mixer according to any one of claims 1 to 4, characterized in that: A shaft barrel (36) is provided in the middle of the stirring shaft (3), the axis of the shaft barrel (36) is perpendicular to the axis of the stirring shaft (3), the stirring assembly (34) includes a main shaft, the main shaft is rotatably connected to the shaft barrel (36), the second bevel gear is provided at the inner end of the main shaft, and the portion of the main shaft located outside the shaft barrel (36) is provided with a plurality of blades.

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