A three-shaft high-efficiency down-type internal mixer

Abstract

The utility model relates to a three -shaft high -efficient falling type internal mixer, including machine body, internal mixing chamber, first stirring rod, second stirring rod and third stirring rod, the internal mixing chamber installs machine body, first stirring rod, second stirring rod and third stirring rod are in turn and side by side rotation setting in the internal mixing chamber, the machine body is equipped with internal mixing motor in the one side of internal mixing chamber. The utility model relates to a three -shaft high -efficient falling type internal mixer, through setting up three side by side's stirring rod to increase the shearing area when mixing material, make mixing material more even, and its three stirring rods are triangularly set up the gap between upper stirring rod and lower stirring rod and the gap between lower stirring rod and internal mixing chamber, no matter how arrangement will have upper stirring rod to block cleaning will be more troublesome, and the side by side setting's stirring rod does not have upper and lower stirring rod, just exists the problem of blocking to compare three stirring rods to be triangularly set up the internal mixer better cleaning, also can increase the evenness of mixing material.

Description

Technical Field

[0001] This utility model belongs to the field of internal mixer technology, specifically relating to a three-axis high-efficiency drop-type internal mixer. Background Technology

[0002] A closed-type rubber mixing mill, also known as an internal mixer, is mainly used for the plasticizing and mixing of rubber. An internal mixer is a machine equipped with a pair of stirring rods of a specific shape that rotate relative to each other, which intermittently plasticizes and mixes polymer materials in a closed state with adjustable temperature and pressure. Some internal mixers can flip the mixing chamber after the material is processed to facilitate the removal of the material.

[0003] When the existing internal mixer is working, the two stirring rods rotate relative to each other, clamping the material from the feed port and bringing it into the roller gap. The material is squeezed and sheared by the stirring rods, and after passing through the roller gap, it hits the sharp edge of the lower top bolt and is divided into two parts. They then return to the top of the roller gap along the gap between the front and rear chamber walls and the stirring rods. Although the amount of material produced in one mixing is several times that of an open mill, the rubber compound is prone to uneven dispersion and scrapping, wasting raw materials and having to be mixed again. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a three-axis high-efficiency falling internal mixer that can produce more uniform rubber material.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a three-axis high-efficiency falling internal mixer, including a machine body, a mixing chamber, a first stirring rod, a second stirring rod, and a third stirring rod. The mixing chamber is installed on the machine body. The first stirring rod, the second stirring rod, and the third stirring rod are arranged in parallel and rotatably in the mixing chamber. The machine body has a mixing motor on one side of the mixing chamber. The mixing chamber has a gear transmission box on the side facing the mixing motor. The gear transmission box is connected to the mixing motor in a driving connection. The three stirring rods are respectively connected to the gear transmission box in a driving connection.

[0006] The gear transmission box is equipped with a first gear, a second gear, and a third gear. The first gear, the second gear, and the third gear are coaxially connected to the first stirring rod, the second stirring rod, and the third stirring rod, respectively. The first gear and the second gear are meshed with each other. The third gear is connected to the second gear via a first transmission belt and is connected to the internal mixing motor.

[0007] The first and second stirring rods are each provided with two stirring blades, and the third stirring rod is provided with three stirring blades.

[0008] The gear transmission box is provided with a first drive wheel, a second drive wheel and a third drive wheel. The first drive wheel, the second drive wheel and the third drive wheel are coaxially connected to the first stirring rod, the second stirring rod and the third stirring rod respectively. The first drive wheel is provided with a first transmission belt that is connected to the second drive wheel. The second drive wheel is provided with a second transmission belt that is connected to the third drive wheel. The third drive wheel is connected to the internal mixing motor.

[0009] The first stirring rod, the second stirring rod, and the third stirring rod are each equipped with two stirring blades.

[0010] The gear transmission box is provided with a first drive wheel, a first helical gear, a first gear, and a second gear. The first drive wheel, the first helical gear, and the first gear are coaxially connected to the first stirring rod, the second stirring rod, and the third stirring rod, respectively. The second gear meshes with the first gear. The first drive wheel is provided with a first transmission belt that is connected to the second gear. The first gear is connected to the internal mixing motor. The gear transmission box is provided with a forward and reverse motor. The output end of the forward and reverse motor is placed inside the gear transmission box and is provided with a second helical gear. The first helical gear meshes with the second helical gear.

[0011] The first stirring rod, the second stirring rod, and the third stirring rod are each equipped with two stirring blades.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model discloses a three-axis high-efficiency drop mixer. By setting three parallel stirring rods, the shear area during mixing is increased, resulting in more uniform mixing. Furthermore, the three stirring rods are arranged in a triangle. Regardless of the arrangement, the upper stirring rod will always obstruct the cleaning process, making it more difficult. However, the parallel stirring rods do not have the problem of obstruction between the upper and lower stirring rods, thus making the mixer easier to clean and increasing the uniformity of mixing compared to the mixer with three stirring rods arranged in a triangle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal mixer of this utility model; Figure 2 This is a top view of the mixing chamber in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the internal structure of the gear transmission box in Embodiment 1 of this utility model; Figure 4 This is a top view of the mixing chamber in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the internal structure of the gear transmission box in Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the internal mixer of Embodiment 3 of this utility model; Figure 7 This is a top view of the mixing chamber in Embodiment 3 of this utility model; Figure 8 This is a schematic diagram of the internal structure of the gear transmission box in Embodiment 3 of this utility model.

[0014] The markings in the diagram are: 1. Machine body; 2. Mixing chamber; 3. First stirring rod; 4. Second stirring rod; 5. Third stirring rod; 6. Mixing motor; 7. Gear transmission box; 8. First gear; 9. Second gear; 10. Third gear; 11. First transmission belt; 12. Stirring blade; 13. First drive wheel; 14. Second drive wheel; 15. Third drive wheel; 16. Second transmission belt; 17. First helical gear; 18. Forward and reverse motor; 19. Second helical gear. Detailed Implementation

[0015] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation. Example 1

[0016] like Figures 1-3 As shown, this embodiment provides a three-axis high-efficiency drop-type internal mixer, including a machine body 1, a mixing chamber 2, a first stirring rod 3, a second stirring rod 4, and a third stirring rod 5. The mixing chamber 2 is mounted on the machine body 1. The first stirring rod 3, the second stirring rod 4, and the third stirring rod 5 are arranged side by side and rotated within the mixing chamber 2. A mixing motor 6 is provided on one side of the machine body 1 in the mixing chamber 2. A gear transmission box 7 is provided on the side of the mixing chamber 2 facing the mixing motor 6. The gear transmission box 7 is connected to the mixing motor 6. The three stirring rods are respectively connected to the gear transmission box 7. The mixing motor 6, in conjunction with the gear transmission box 7, drives the three stirring rods to perform mixing and internal mixing. By setting three parallel stirring rods, the shear area during mixing is increased, making the mixing more uniform. Furthermore, the three stirring rods are arranged in a triangle. Regardless of the arrangement, the upper stirring rod will always obstruct the cleaning process, making it more difficult. However, the parallel stirring rods do not have the problem of obstruction between the upper and lower stirring rods, and the gap between the lower stirring rod and the mixing chamber 2. Therefore, the internal mixer with three stirring rods arranged in a triangle is easier to clean than the internal mixer with three stirring rods arranged in a triangle, and it can also increase the uniformity of the mixing.

[0017] Furthermore, the gear transmission box 7 is equipped with a first gear 8, a second gear 9, and a third gear 10. The first gear 8, second gear 9, and third gear 10 are coaxially connected to the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5, respectively. The first gear 8 and the second gear 9 mesh with each other, and the third gear 10 is connected to the second gear 9 via a first transmission belt 11. The third gear 10 is also connected to the internal mixing motor 6. Specifically, the first stirring rod 3 and the second stirring rod 4 each have two stirring blades 12, and the third stirring rod 5 has three stirring blades 12. The meshing of the first gear 8 and the second gear 9 causes the first stirring rod 3 and the second stirring rod 4 to rotate in opposite directions for internal mixing, while the third stirring rod 5 rotates in the same direction as the second stirring rod 4, providing auxiliary mixing and ensuring uniform mixing. The three stirring blades 12 on the third stirring rod 5 increase the mixing area. Example 2

[0018] like Figures 4-5 As shown, the structural features differ from other embodiments in that: the gear transmission box 7 is provided with a first drive wheel 13, a second drive wheel 14, and a third drive wheel 15. The first drive wheel 13, the second drive wheel 14, and the third drive wheel 15 are coaxially connected to the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5, respectively. The first drive wheel 13 is provided with a first transmission belt 11 that is connected to the second drive wheel 14. The second drive wheel 14 is provided with a second transmission belt 16 that is connected to the third drive wheel 15. The third drive wheel 15 is connected to the internal mixing motor 6. Specifically, the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5 are each provided with two stirring blades 12. The first drive wheel 13, the second drive wheel 14, and the third drive wheel 15, in conjunction with the first transmission belt 11 and the second transmission belt 16, cause the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5 to rotate and stir in the same direction. This causes the mixture to be stirred and transferred from above the first stirring rod 3 to above the second stirring rod 4, then from above the second stirring rod 4 to above the third stirring rod 5, then from below the third stirring rod 5 to below the second stirring rod 4, and finally from below the second stirring rod 4 to below the first stirring rod 3, thus performing a cyclical stirring. Example 3

[0019] like Figures 6-8As shown, the structural features differ from other embodiments in that: the gear transmission box 7 is provided with a first drive wheel 13, a first helical gear 17, a first gear 8, and a second gear 9. The first drive wheel 13, the first helical gear 17, and the first gear 8 are coaxially connected to the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5, respectively. The second gear 9 meshes with the first gear 8. The first drive wheel 13 is provided with a first transmission belt 11 that is connected to the second gear 9. The first gear 8 is connected to the internal mixing motor 6. The gear transmission box 7 is provided with a forward and reverse motor 18, the output end of which is located inside the gear transmission box 7 and is provided with a second helical gear 19. The first helical gear 17 meshes with the second helical gear 19. Specifically, the first stirring rod 3, the second stirring rod 4, and the third stirring rod 5 are each provided with two stirring blades 12. The first drive wheel 13 and the second gear 9 work together to make the first stirring rod 3 and the third stirring rod 5 rotate in opposite directions to stir the mixture, so that the mixture will gather between the first stirring rod 3 and the third stirring rod 5. The output control of the forward and reverse motor 18 enables the second stirring rod 4 to rotate in both directions, that is, it rotates in opposite directions before the first stirring rod 3 and then rotates in opposite directions with the third stirring rod 5 to achieve uniform mixing.

[0020] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A three-axis high-efficiency drop mixer, characterized in that: The machine includes a body, a mixing chamber, a first stirring rod, a second stirring rod, and a third stirring rod. The mixing chamber is mounted on the body. The first stirring rod, the second stirring rod, and the third stirring rod are arranged side by side and rotated inside the mixing chamber. The body has a mixing motor on one side of the mixing chamber. The mixing chamber has a gear transmission box on the side facing the mixing motor. The gear transmission box is connected to the mixing motor. The three stirring rods are respectively connected to the gear transmission box.

2. The three-axis high-efficiency drop mixer according to claim 1, characterized in that: The gear transmission box is equipped with a first gear, a second gear, and a third gear. The first gear, the second gear, and the third gear are coaxially connected to the first stirring rod, the second stirring rod, and the third stirring rod, respectively. The first gear and the second gear are meshed with each other. The third gear is connected to the second gear via a first transmission belt and is connected to the internal mixing motor.

3. A three-axis high-efficiency drop mixer according to claim 2, characterized in that: The first and second stirring rods are each provided with two stirring blades, and the third stirring rod is provided with three stirring blades.

4. A three-axis high-efficiency drop mixer according to claim 1, characterized in that: The gear transmission box is provided with a first drive wheel, a second drive wheel and a third drive wheel. The first drive wheel, the second drive wheel and the third drive wheel are coaxially connected to the first stirring rod, the second stirring rod and the third stirring rod respectively. The first drive wheel is provided with a first transmission belt that is connected to the second drive wheel. The second drive wheel is provided with a second transmission belt that is connected to the third drive wheel. The third drive wheel is connected to the internal mixing motor.

5. A three-axis high-efficiency drop mixer according to claim 4, characterized in that: The first stirring rod, the second stirring rod, and the third stirring rod are each equipped with two stirring blades.

6. A three-axis high-efficiency drop mixer according to claim 1, characterized in that: The gear transmission box is provided with a first drive wheel, a first helical gear, a first gear, and a second gear. The first drive wheel, the first helical gear, and the first gear are coaxially connected to the first stirring rod, the second stirring rod, and the third stirring rod, respectively. The second gear meshes with the first gear. The first drive wheel is provided with a first transmission belt that is connected to the second gear. The first gear is connected to the internal mixing motor. The gear transmission box is provided with a forward and reverse motor. The output end of the forward and reverse motor is placed inside the gear transmission box and is provided with a second helical gear. The first helical gear meshes with the second helical gear.

7. A three-axis high-efficiency drop mixer according to claim 6, characterized in that: The first stirring rod, the second stirring rod, and the third stirring rod are each equipped with two stirring blades.

Images