A high-uniformity mixing device

Abstract

This utility model relates to the field of mixing device technology, and more particularly to a highly uniform mixing device, including a mixing tank. A cover plate is fixedly installed on the top of the mixing tank, and a bearing is fixedly installed through the center of the cover plate. A stirring shaft is inserted through and interference-fitted into the inner wall of the bearing. A motor is installed above the stirring shaft, and the outer wall of the motor is fixed to the surface of the cover plate by a bracket. This design uses blades of different sizes installed on both sides of the stirring shaft. The small blades generate fine vortices, while the large blades form large-scale vortices. This alternating structure of large and small vortices causes the flow path of the mixed raw materials to change continuously, increasing the contact opportunities between different components. Compared with the traditional single-blade structure, this design can more effectively break the stratification of raw materials and avoid the problem of uneven mixing in certain areas, thereby achieving a more uniform mixing effect in a shorter time.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to a highly uniform mixing device. Background Technology

[0002] Foamed sole material is a lightweight, soft, and elastic material that is widely used in footwear manufacturing to provide a comfortable wearing experience and good cushioning performance.

[0003] EVA is a relatively common material. When using it, certain auxiliary materials need to be mixed. Due to its good fluidity, raw materials and auxiliary materials can be mixed by stirring. For example, Chinese Patent Publication No. "CN216172030U" provides a novel pigment mixing device to improve the uniformity of pigment mixing. This device, belonging to the field of pigment mixing device technology, includes a mixing tank. Mounting frames are connected to both sides of the top of the mixing tank. A mounting plate is fixedly connected between the tops of the mounting frames. A fixed plate is connected above the mounting frames. A drive motor is mounted at the top center of the mounting plate. The output end of the drive motor is connected to a drive rod. The bottom of the drive rod passes through the mounting plate and the fixed plate and is connected to a drive gear. A main stirring rod is fixedly connected to the bottom center of the drive gear. Mounting holes are arranged in a circular array at equal intervals on the fixed plate. Connecting rods can be detachably installed on the fixed plate through the mounting holes. In use, this invention allows for mixing and stirring of pigments in different locations by adjusting the number and height of the auxiliary stirring rods, enhancing the uniformity of mixing and improving mixing efficiency.

[0004] Currently, most material mixing devices mainly use a stirring rod with several blades of the same size to continuously stir the various raw materials into the container after they enter the mixture. However, this type of stirring method is relatively unidirectional, and often uses the speed of the motor to create a differential speed to improve the stirring effect. But for some raw materials that are difficult to mix, even with a differential speed, it is difficult to improve the uniformity of the mixture. Therefore, it is necessary to change the flow pattern of the raw materials during mixing to improve the mixing effect between the raw materials. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a highly uniform mixing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a highly uniform mixing device, including a mixing tank, a cover plate fixedly installed on the top of the mixing tank, a bearing fixedly installed through the center of the cover plate, a mixing shaft inserted through and interference-fitted into the inner ring wall of the bearing, a motor first arranged above the mixing shaft, the outer wall of the motor first being fixed to the surface of the cover plate by a bracket, a drive shaft first arranged inside the motor first, and the connection position of the drive shaft first and the mixing shaft being fixedly connected by a coupling. The lower end of the stirring shaft is symmetrically distributed with mounting plates on the inner surface of the stirring tank. Several small blades are fixedly mounted on the surface of the mounting plate on one side in a vertical position, and several large blades are fixedly mounted on the surface of the mounting plate on the other side in a vertical position. The size of the large blades is twice that of the small blades. A feed inlet is fixedly connected to one side of the upper end of the cover plate. A valve is installed on the feed inlet, and the valve core of the valve is embedded inside the feed inlet. A discharge inlet is fixedly connected to the lower side of the mixing tank. A valve is installed on the discharge inlet, and the valve core of the valve is embedded inside the discharge inlet.

[0007] Preferably, both the upper and lower ends of the mounting plate are fixedly mounted with collars by brackets, and the surface of the stirring shaft is welded and fixed with threaded posts corresponding to the positions of the collars, with the surface of the threaded posts slidingly sleeved with the inside of the collars.

[0008] Preferably, a threaded sleeve is threadedly installed at the end of the threaded column, one side of the threaded sleeve is tightly fitted to the end face of the collar, and knobs are fixedly distributed on the outer ring wall of the threaded sleeve.

[0009] Preferably, a base is attached to the lower end of the mixing tank, and several arc-shaped positioning plates are fixed to the upper end of the base. The inner arc surface of the positioning plates is attached to the outer wall surface of the mixing tank, and a base is also provided below the base.

[0010] Preferably, ball seats are fixed at the lower end of the base along the four apex positions, and a ball is rolled inside the ball seat, with the surface of the ball rolling in contact with the surface of the base.

[0011] Preferably, both sides of the base are fixed with limit sleeves, and the limit sleeves are slidably connected to limit rods. One end of the limit rod is fixed to the side wall of the base, and an anti-detachment plate is fixedly installed at the end of the limit rod away from the base. A spring is wound around the surface of the limit rod, and the two ends of the spring are fixedly installed to the surface of the anti-detachment plate and the surface of the base, respectively.

[0012] Preferably, an extension plate is fixedly installed on one side of the base, and a second motor is fixedly installed on the upper end of the extension plate via a bracket. The second motor has a second rotating shaft for driving inside, and an eccentric wheel is fixedly sleeved on the surface of the second rotating shaft. The near and far ends of the eccentric wheel are always in contact with the anti-detachment plate at the corresponding position.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This solution uses blades of different sizes installed on both sides of the stirring shaft. The small blades generate fine vortices, while the large blades form large-scale vortices. This alternating structure of large and small vortices causes the flow path of the mixed raw materials to change continuously, increasing the contact opportunities between different components. Compared with the traditional single-blade structure, this design can more effectively break the stratification of raw materials and avoid the problem of uneven local mixing, thereby achieving a more uniform mixing effect in a shorter time. 2. As described in 1, the base is equipped with an eccentric wheel mechanism driven by a motor. Through a spring reset system, the mixing tank is driven to shake regularly from side to side. This mechanical shaking and the stirring of the rotating blades form a compound motion mode, which causes the raw materials in the tank to produce three-dimensional irregular flow. The limiting rod and the ball support structure ensure the stability of the shaking process and reduce frictional resistance. This dynamic mixing method effectively prevents the raw materials from settling. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a top view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the interior of the mixing tank of this utility model; Figure 4 For the present utility model Figure 3 Enlarged diagram of point A.

[0015] In the diagram: 1. Mixing tank; 11. Cover plate; 12. Bearing; 13. Mixing shaft; 14. Motor 1; 15. Mounting plate; 16. Small blade; 17. Large blade; 18. Feed inlet; 19. Valve 1; 110. Discharge inlet; 111. Valve 2; 101. Collar; 102. Threaded column; 103. Threaded sleeve; 2. Base; 20. Positioning plate; 21. Base; 22. Ball seat; 23. Ball; 3. Limiting sleeve; 31. Limiting rod; 32. Anti-detachment plate; 33. Spring; 301. Motor 2; 302. Eccentric wheel; 303. Extension plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-4 A highly uniform mixing device includes a mixing tank 1, a cover plate 11 fixedly installed on the top of the mixing tank 1, a bearing 12 fixedly installed through the center of the cover plate 11, a stirring shaft 13 inserted through and interference-fitted into the inner wall of the bearing 12, a motor 14 disposed above the stirring shaft 13, the outer wall of the motor 14 being fixed to the surface of the cover plate 11 by a bracket, a drive shaft 1 disposed inside the motor 14, and the connection between the drive shaft 1 and the stirring shaft 13 being fixedly connected by a coupling. When the stirring shaft 13 needs to be driven, the power supply of the motor 14 is turned on, so that the motor 14 can drive the drive shaft 1, thereby driving the stirring shaft 13 to rotate stably, and the stirring shaft 13 can rotate stably based on the bearing 12. The lower end of the stirring shaft 13 is symmetrically equipped with mounting plates 15 on the inner surface of the mixing tank 1. Several small blades 16 are fixedly mounted on the surface of the mounting plate 15 on one side in a vertical position, and several large blades 17 are fixedly mounted on the surface of the mounting plate 15 on the other side in a vertical position. The size of the large blades 17 is twice that of the small blades 16. By setting blades of different sizes on both sides of the stirring shaft 13, the small blades 16 can generate fine vortices and the large blades 17 can generate large-scale vortices during stirring. Through the alternation of large and small vortices, the flow path of the raw materials in the mixture can be continuously changed during stirring, thereby improving the direct contact mixing effect. A feed inlet 18 is fixedly connected to the upper side of the cover plate 11. A valve 19 is installed on the feed inlet 18, and the valve core of the valve 19 is embedded inside the feed inlet 18. A discharge inlet 110 is fixedly connected to the lower side of the mixing tank 1. A valve 2 111 is installed on the discharge inlet 110, and the valve core of the valve 2 111 is embedded inside the discharge inlet 110. Various mixed raw materials can be conveyed into the mixing tank 1 through the feed inlet 18, and the mixed raw materials can be stably discharged through the discharge inlet 110.

[0018] The mounting plate 15 has a collar 101 fixedly mounted on both the upper and lower ends by brackets. The surface of the stirring shaft 13 is welded and fixed with a threaded post 102 corresponding to the position of the collar 101. The surface of the threaded post 102 is slidably sleeved with the inside of the collar 101. The mounting plate 15 and the stirring shaft 13 can be quickly positioned and connected through the collar 101 and the threaded post 102.

[0019] The threaded column 102 has a threaded sleeve 103 threadedly installed at its end. One side of the threaded sleeve 103 is tightly fitted to the end face of the collar 101. Knobs are fixedly distributed on the outer ring wall of the threaded sleeve 103. When it is necessary to fix the mounting plate 15, the mounting plate 15 is fitted to the stirring shaft 13. The size and specifications of the blades of the mounting plate 15 can be installed according to actual needs. At this time, the threaded column 102 will pass through the collar 101 for positioning. The mounting plate 15 and the stirring shaft 13 can be fixed by the threaded sleeve 103 and the threaded column 102 being threaded together.

[0020] The mixing tank 1 has a base 2 attached to its lower end. Several arc-shaped positioning plates 20 are fixed to the upper end of the base 2. The inner arc surface of the positioning plates 20 is attached to the outer wall surface of the mixing tank 1. A base 21 is also provided below the base 2. The base 2, together with the positioning plates 20, positions and stabilizes the mixing tank 1 when it is placed.

[0021] Among them, ball seats 22 are fixedly distributed at the four corners of the lower end of the base 2. A ball 23 is rolled inside the ball seat 22. The surface of the ball 23 rolls in contact with the surface of the base 21. The ball 23 is made of solid stainless steel. When the base 2 moves back and forth relative to the base 21, the ball 23 can provide auxiliary support. At the same time, the rolling of the ball 23 can reduce the sliding friction resistance.

[0022] The base 21 has a limiting sleeve 3 fixed through both sides. The limiting sleeve 3 has a limiting rod 31 slidably connected inside. One end of the limiting rod 31 is fixed to the side wall of the base 2. The end of the limiting rod 31 away from the base 2 is fixedly installed with an anti-detachment plate 32. A spring 33 is wound around the surface of the limiting rod 31. The two ends of the spring 33 are fixedly installed to the surface of the anti-detachment plate 32 and the surface of the base 2, respectively. In order to further improve the mixing effect in the mixing tank 1, when the mixing shaft 13 of the basic structure is mixed with the blades, the mixing tank 1 is allowed to slide, so that the raw materials in the mixing tank 1 can further form an irregular flow path, thereby greatly improving the uniformity of mixing. The limiting rod 31 slides inside the limiting sleeve 3, which can ensure the limiting stability of the base 2 during reciprocating swaying. The spring 33 can ensure the stable position reset after reciprocating movement.

[0023] An extension plate 303 is fixedly installed on one side of the base 21. A motor 301 is fixedly installed on the upper end of the extension plate 303 via a bracket. The motor 301 has a rotating shaft for driving, and an eccentric wheel 302 is fixedly sleeved on the surface of the rotating shaft. The near and far ends of the eccentric wheel 302 are always in contact with the anti-detachment plate 32 at the corresponding position. When it is necessary for the base 2 to slide left and right with the mixing tank 1, the power of the motor 301 is turned on, so that the rotating shaft of the motor 301 can rotate and drive the eccentric wheel 302 to rotate. Through the near and far positions of the eccentric wheel 302, a squeezing and releasing effect is continuously formed with the anti-detachment plate 32 on one side. With the extension and retraction of the spring 33, the stable driving and shaking effect of the mixing tank 1 can be guaranteed.

[0024] Working method: The stirring shaft 13 of this solution is driven by the motor 14 and rotates stably through the coupling. The inner ring wall of the bearing 12 is interference-fitted with the stirring shaft 13 to ensure rotational accuracy. The mounting plates 15 symmetrically distributed at the lower end of the stirring shaft 13 fix the small blades 16 and the large blades 17 respectively. The fine vortices generated by the small blades 16 and the large vortices generated by the large blades 17 work alternately to force the flow path of the mixture to change continuously. The small blades 16 form fine dispersion through local high-speed shearing, while the large blades 17 promote overall convection through large-scale stirring. The two work together to break the stratification or agglomeration of the raw materials. The mounting plate 15 is quickly positioned by slidingly engaging the collar 101 and the threaded column 102. After the threaded sleeve 103 is tightened, it presses the end face of the collar 101 to ensure the rigid connection of the blade assembly. The base 2 rolls against the base 21 through the stainless steel ball 23 inside the ball seat 22, reducing sliding friction resistance and allowing the mixing tank 1 to swing freely in the horizontal direction. The motor 2 301 drives the eccentric wheel 302 to rotate, and its near and far ends periodically press one side of the anti-detachment plate 32, pushing the limit rod 31 to slide in the limit sleeve 3, causing the base 2 and the mixing tank 1 to move left and right. The spring 33 provides a restoring force when the eccentric wheel 302 disengages, forming a continuous reciprocating motion. This shaking causes the raw materials in the mixing tank 1 that have been disturbed by the blades to generate irregular turbulence, especially for the particles deposited at the bottom of the tank, which are resuspended through inertia. The cooperation between the limit rod 31 and the limit sleeve 3 constrains the shaking trajectory and avoids uncontrolled swaying.

[0025] 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 highly uniform mixing device, comprising a mixing tank (1), characterized in that: A cover plate (11) is fixedly installed on the top of the mixing tank (1). A bearing (12) is fixedly installed through the center of the cover plate (11). A stirring shaft (13) is installed through and interference fits on the inner ring wall of the bearing (12). A motor (14) is installed above the stirring shaft (13). The outer wall of the motor (14) is fixed to the surface of the cover plate (11) by a bracket. A rotating shaft for driving is installed inside the motor (14). The connection between the rotating shaft and the stirring shaft (13) is fixedly connected by a coupling. The lower end of the stirring shaft (13) is symmetrically distributed with mounting plates (15) on the inner surface of the stirring tank (1). Several small blades (16) are fixedly mounted on the surface of the mounting plate (15) on one side along the vertical position, and several large blades (17) are fixedly mounted on the surface of the mounting plate (15) on the other side along the vertical position. The size of the large blades (17) is twice the size of the small blades (16). A feed port (18) is fixed through one side of the upper end of the cover plate (11). A valve (19) is provided on the feed port (18). The valve core of the valve (19) is embedded inside the feed port (18). A discharge port (110) is fixed through one side of the lower end of the mixing tank (1). A valve (111) is provided on the discharge port (110). The valve core of the valve (111) is embedded inside the discharge port (110).

2. The highly uniform mixing device according to claim 1, characterized in that: Both ends of the mounting plate (15) are fixedly mounted with collars (101) by brackets. The surface of the stirring shaft (13) is welded and fixed with threaded posts (102) corresponding to the position of the collars (101). The surface of the threaded posts (102) is slidably sleeved with the inside of the collars (101).

3. The highly uniform mixing device according to claim 2, characterized in that: The threaded column (102) is threaded with a threaded sleeve (103) at its end. One side of the threaded sleeve (103) is tightly attached to the end face of the collar (101). Knobs are fixedly distributed on the outer ring wall of the threaded sleeve (103).

4. The highly uniform mixing device according to claim 1, characterized in that: The lower end of the mixing tank (1) is fitted with a base (2), and several arc-shaped positioning plates (20) are fixed on the upper end of the base (2). The inner arc surface of the positioning plate (20) is fitted with the outer wall surface of the mixing tank (1). A base (21) is also provided below the base (2).

5. The highly uniform mixing device according to claim 4, characterized in that: The lower end of the base (2) is fixed with ball seats (22) distributed at the four apex positions. A ball (23) is rolled inside the ball seat (22), and the surface of the ball (23) rolls in contact with the surface of the base (21).

6. The highly uniform mixing device according to claim 5, characterized in that: Both sides of the base (21) are fixed with limiting sleeves (3). The limiting sleeves (3) are slidably connected to the limiting rods (31). One end of the limiting rods (31) is fixed to the side wall of the base (2). The end of the limiting rods (31) away from the base (2) is fixedly installed with an anti-detachment plate (32). A spring (33) is wound around the surface of the limiting rods (31). The two ends of the springs (33) are fixedly installed with the surface of the anti-detachment plate (32) and the surface of the base (2), respectively.

7. A highly uniform mixing device according to claim 6, characterized in that: An extension plate (303) is fixedly installed on one side of the base (21). A motor (301) is fixedly installed on the upper end of the extension plate (303) through a bracket. A rotating shaft (301) for driving is provided inside the motor (301), and an eccentric wheel (302) is fixedly sleeved on the surface of the rotating shaft (302). The near and far ends of the eccentric wheel (302) are always in contact with the anti-detachment plate (32) at the corresponding position.

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