Powder mixing device and stirring device

Abstract

The utility model discloses a kind of powder mixing equipment and stirring device, stirring device includes: stirring shaft, the power output end of the transmission assembly of the powder mixing equipment is drivingly connected with the stirring shaft;Multiple paddles, each the paddle is respectively installed in the stirring shaft, each the paddle is arranged along the axial direction of the stirring shaft, and the installation angle of at least two in each the paddle is different on the stirring shaft.This stirring device can improve the mixing uniformity of mixing surface machine surface flocculation, wherein, the installation angle of first-third paddle is 30 °, and it is installed in 90 ° increment, the installation angle of fourth paddle is 5 °, first-third paddle is tangent to material, when realizing radial mixing (gradually improve material), the angle of fourth paddle will reduce the height of material rising, and cause material to reverse inwards, and every paddle is opened with back blade, in the stirring process and by crushing function, material realizes efficient radial mixing and axial mixing in the stirring process.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, specifically to a powder mixing equipment and mixing device. Background Technology

[0002] In technical scenarios such as flour mixing, where powder and solution need to be mixed, existing technologies mostly use powder mixing equipment for mixing.

[0003] Taking noodle mixing machines as an example, existing powder mixing equipment has the following technical problems: Existing powder mixing equipment typically uses symmetrical double-blade agitators, resulting in poor axial mixing and uneven mixing, especially when seasonings are added to the solution. This is particularly problematic for mixing dough with high moisture content, requiring prolonged high-speed mixing. However, prolonged mixing can negatively impact dough texture, causing issues such as gluten development and fermentation. High-precision double-blade agitators require dynamic balancing tests, making them difficult and costly to manufacture. Meanwhile, simple blades are typically welded to the rotating shaft, making replacement and maintenance extremely inconvenient. Utility Model Content

[0004] Therefore, this utility model provides a powder mixing equipment and a stirring device to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A stirring device is used in a powder mixing equipment, the powder mixing equipment including a stirring tank, the inner cavity of the stirring tank forming a material mixing chamber; the stirring device includes: A stirring shaft is connected to the power output end of the transmission component of the powder mixing equipment. Multiple blades are provided, each blade is mounted on the stirring shaft, each blade is arranged along the axial direction of the stirring shaft, and at least two of the blades have different mounting angles on the stirring shaft.

[0006] In some embodiments, the plurality of blades includes: The first blade is installed at a first preset angle with respect to the stirring shaft. The second blade has a blade surface that forms a preset angle with the blade surface of the first blade, and the installation angle between the second blade and the stirring shaft is the first preset angle. The third blade has a surface that forms a preset angle with the surface of the second blade, and the installation angle between the third blade and the stirring shaft is the first preset angle. The fourth blade has a surface that forms a preset angle with the surface of the third blade, and the installation angle between the fourth blade and the stirring shaft is a second preset angle.

[0007] In some embodiments, the first preset angle is 30°.

[0008] In some embodiments, the second preset angle is 5°.

[0009] In some embodiments, the preset angle is 90°.

[0010] In some embodiments, the first blade, the second blade, the third blade, and the fourth blade are all provided with a rear cutting edge.

[0011] In some embodiments, the first, second, and third blades are tangential to the material during stirring to achieve radial mixing of the material; the fourth blade is used to reduce the rising height of the material and cause the material to reverse inward to achieve axial mixing of the material.

[0012] This utility model also provides a powder mixing device, including the stirring device described above.

[0013] In one or more of the above specific embodiments, the mixing device provided by this utility model can improve the uniformity of dough mixing in a noodle mixer. The first to third blades are installed at an angle of 30° and increase by 90°. The fourth blade is installed at an angle of 5°. When the first to third blades are tangent to the material and radial mixing is achieved (gradually raising the material), the angle of the fourth blade will reduce the height of the material rising and cause the material to reverse inward. Each blade has a rear edge, which also has a crushing function during the mixing process, so that the material can achieve efficient radial and axial mixing during the mixing process. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is one of the structural schematic diagrams of the powder mixing equipment provided by this utility model; Figure 2 This is the second structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 3 This is the third structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 4 This is the fourth structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 5 This is the fifth schematic diagram of the structure of the powder mixing equipment provided by this utility model; Figure 6 This is the sixth structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 7 This is one of the structural schematic diagrams of the stirring device in the powder mixing equipment provided by this utility model; Figure 8 This is the second schematic diagram of the stirring device in the powder mixing equipment provided by this utility model; Figure 9 This is the third schematic diagram of the stirring device in the powder mixing equipment provided by this utility model; Figure 10 This is the fourth schematic diagram of the stirring device in the powder mixing equipment provided by this utility model; Figure 11 This is the fifth schematic diagram of the mixing device in the powder mixing equipment provided by this utility model; Figure 12 This is the sixth schematic diagram of the mixing device in the powder mixing equipment provided by this utility model.

[0017] Explanation of reference numerals in the attached figures: 1-Frame assembly, 2-Transmission assembly, 3-Unloading assembly, 4-Mixing device, 5-Mixing tank; 6-Adjustable pressurized spray assembly, 7-Drive component, 8-Control system; 41-First blade, 42-Second blade, 43-Third blade, 44-Fourth blade, 45-Locking spacer; 46 - Adjusting washer, 47 - O-ring seal, 48 - Lock nut. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In one specific implementation, such as Figures 1-6 As shown, the powder mixing equipment provided by this utility model includes a frame assembly, a mixing tank, a mixing device, and a transmission assembly; wherein, the mixing tank is installed on the frame assembly, the inner cavity of the mixing tank forms a material mixing chamber, and the side wall of the mixing tank has a discharge port communicating with the material mixing chamber; the mixing element of the mixing device is disposed in the material mixing chamber, the power output end of the transmission assembly is connected to the mixing device, and the power input end of the transmission assembly is connected to the drive element.

[0020] Furthermore, the powder mixing equipment also includes a control system. The control system controls the opening of the butterfly valve at the feed inlet to allow various materials in the upper hopper to enter the mixing tank. After the valve closes, the control system controls the start of the mixing device, and the various materials are pre-mixed for about 5 seconds. After mixing is completed, the adjustable pressurized spray assembly is controlled to spray the solution for 10-15 seconds. After spraying stops, the mixing device continues to mix for about 15 seconds. The control system opens the unloading assembly to unload for about 15 seconds. The mixing device stops, and the cleaning cylinder works to clean the material. After the work is completed, the unloading cylinder closes the unloading hopper door.

[0021] During operation, the drive component (such as a motor) transmits power to the mixing device through a transmission assembly. The mixing component rotates within the material mixing chamber, shearing and mixing the input materials (such as flour and water). After mixing, the material is discharged through the outlet of the mixing tank. The frame assembly provides overall support for the equipment. The cooperation between the mixing device and the transmission assembly ensures uniform mixing of the powder. The modular structure facilitates assembly and maintenance. The frame assembly can be a welded steel frame or a bolted assembly frame. The drive component can be a hydraulic motor or an electric motor, and the transmission assembly can use gear transmission or belt transmission, etc.

[0022] Specifically, the bottom of frame component 1 is equipped with perforated feet, which can be fixed to the ground. Figure 1Taking the direction shown as an example, the upper surface of the top right side of frame assembly 1 is equipped with a welded nut, which is connected and fixed to the mixing tank 5 by bolts. The lower surface of the top right side of frame assembly 1 is also equipped with a welded nut, which is connected and fixed to the transmission assembly 2 by bolts. The outer circle of transmission assembly 2 is equipped with an O-ring, which fits with the inner wall of the bottom circular hole of mixing tank 5 for positioning and sealing. Transmission assembly 2 is equipped with a drive shaft, the upper end of which is installed and fitted with the stirring device 4 by threads. The lower end of transmission assembly 2 is equipped with a pulley, which is connected to the drive component 7 by a belt. The drive component 7 is installed in the lower left part of the interior of frame assembly 1 and is fixed by screws. Adjustable pressurized spray assembly 6 is installed on the upper part of mixing tank 5 and fixed by buckle connection. Adjustable pressurized spray assembly 6 is equipped with four evenly distributed nozzles that extend into the interior of mixing tank 5 to achieve directional, quantitative, and timed spraying of solution. The other end of the spray pipeline is connected to the solution tank through a hose. The upper center inlet of adjustable pressurized spray assembly 6 is also provided. The unloading assembly 3 is installed at the lower right side of the mixing tank 5. The unloading assembly 3 is fixed to the mixing tank 5 with bolts. The unloading assembly 3 is equipped with a unloading valve flap, which is sealed to the mixing tank 5 with an O-ring to ensure its sealing performance during long-term operation. The control system 8 is welded to the upper left side of the frame assembly 1. Various control elements are installed inside the control system 8, and control lines and air pipes are connected to the various actuators through the inside of the frame.

[0023] In a specific application scenario, taking a noodle mixer as an example, for use in noodle mixing systems in the food industry, please refer to [link / reference needed]. Figures 1-6The powder mixing equipment includes a frame assembly 1, a transmission assembly 2, a discharge assembly 3, a mixing device 4, a mixing drum 5, an adjustable pressurized spray assembly 6, a drive assembly 7, and a control system 8. The mixing drum 5 has a mounting hole for the transmission assembly 2 at its bottom center, a discharge port on its right bottom side, and a mounting port for the adjustable pressurized spray assembly 6 at its top. The interior of the mixing drum 5 is a mixing chamber used to hold and mix flour flakes. Flour enters the mixing chamber through the inlet hole on the adjustable pressurized spray assembly 6, is mixed by the mixing device 4, and then discharged to the outside of the drum through the discharge port. The bottom of the mixing drum has evenly distributed threaded bottom holes, which are fixed to the frame assembly 1 with screws. The mixing device 4 is installed at one end of the transmission assembly 2 and locked with threads. The other end of the transmission assembly 2 is equipped with a pulley, which is connected to a pulley installed on the drive assembly 7 via a belt. The drive assembly 7 is installed inside the lower left side of the frame assembly 1, fixed with screws, and has an adjustable tension structure. The adjustable pressurized spray assembly 6 is installed on top of the mixing tank 5. An O-ring is provided on the top of the mixing tank 5, and the adjustable pressurized spray assembly 6 is sealed to the mixing tank 5 via the O-ring. Externally, it is fixed by a snap fastener connection. The adjustable pressurized spray assembly 6 has a feed inlet at its center, which can be connected to a hopper via a flexible connector for feeding. The adjustable pressurized spray assembly 6 has a spray pipe, and four evenly distributed solid conical nozzles are installed inside the assembly. The nozzles are connected to the pipe, and the spray areas of the four solid conical nozzles are uniformly tangent, ensuring thorough contact with the flour. A control valve is provided at the other end of the spray pipe, and the valve is connected to the spray pressurization tank via a pipeline. The discharge assembly 3 is installed on the bottom right side of the mixing tank 5 and has a discharge port. The discharge assembly 3 has an O-ring for sealing the discharge port and is fixed by screws.

[0024] Furthermore, the stirring device provided by this utility model uses multiple progressively increasing blades as the stirring components. Each blade adopts a segmented structure, which has a low manufacturing cost and is easy to install and maintain. The evenly distributed progressive blade structure and the specific blade placement angle can improve the mixing uniformity of the dough flakes.

[0025] In some embodiments, such as Figure 7-12As shown, the stirring component includes a stirring shaft and multiple blades. The stirring shaft is connected to the power output end of the transmission assembly. Each blade is mounted on the stirring shaft, and at least two of the blades have different mounting angles on the stirring shaft. For ease of description, the multiple blades are named first blade, second blade, third blade, and fourth blade. Specifically, the first blade has a 30° mounting angle with the stirring shaft; the second blade's surface forms a 90° angle with the first blade's surface; the third blade's surface forms a 90° angle with the second blade's surface; the fourth blade's surface forms a 90° angle with the third blade's surface; and the fourth blade's mounting angle with the stirring shaft is 5°.

[0026] Specifically, the upper part of the first blade 41 contacts the lower part of the adjusting washer 46 and is sealed by the O-ring 47; the second blade 42 is at a 90° angle to the first blade 41 (viewed from above), the lower part of the second blade 42 contacts the upper part of the adjusting washer 46 and is sealed by the O-ring 47; the upper part of the second blade 42 contacts the lower part of the adjusting washer 46 and is sealed by the O-ring 47; the third blade 43 is at a 90° angle to the second blade 42, the lower part of the third blade 43 contacts the upper part of the adjusting washer 46 and is sealed by the O-ring 47; the upper part of the third blade 43 contacts the lower part of the adjusting washer 46 and is sealed by the O-ring 47; the fourth blade 44 is at a 90° angle to the third blade 43, the lower part of the fourth blade 44 contacts the upper part of the adjusting washer 46 and is sealed by the O-ring 47; a locking spacer 45 is installed on the fourth blade 44 and locked to the rotating shaft by a locking nut 48.

[0027] Taking a noodle mixer as an example, the mixing device provided by this invention can improve the uniformity of noodle mixing. The first to third blades are installed at 30° angles, increasing by 90° increments, while the fourth blade is installed at 5° angles. When the first to third blades are tangential to the material, achieving radial mixing (gradually raising the material), the angle of the fourth blade reduces the height the material rises, causing the material to reverse inwards. Each blade has a rear cutting edge, providing a crushing function during mixing, enabling efficient radial and axial mixing. This design is safe, efficient, simple to operate, and easy to maintain. Furthermore, the bottom of the first blade has a labyrinth sealing groove to prevent material from entering the rotating shaft. The locking nut has a left-hand thread design, ensuring blade safety during mixing and facilitating disassembly and replacement.

[0028] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A stirring device for use in powder mixing equipment, the powder mixing equipment comprising a stirring tank, the inner cavity of the stirring tank forming a material mixing chamber; characterized in that, The stirring device includes: A stirring shaft is connected to the power output end of the transmission component of the powder mixing equipment. Multiple blades are provided, each blade is mounted on the stirring shaft, each blade is arranged along the axial direction of the stirring shaft, and at least two of the blades have different mounting angles on the stirring shaft.

2. The stirring device according to claim 1, characterized in that, The plurality of blades includes: The first blade is installed at a first preset angle with respect to the stirring shaft. The second blade has a blade surface that forms a preset angle with the blade surface of the first blade, and the installation angle between the second blade and the stirring shaft is the first preset angle. The third blade has a surface that forms a preset angle with the surface of the second blade, and the installation angle between the third blade and the stirring shaft is the first preset angle. The fourth blade has a surface that forms a preset angle with the surface of the third blade, and the installation angle between the fourth blade and the stirring shaft is a second preset angle.

3. The stirring device according to claim 2, characterized in that, The first preset angle is 30°.

4. The stirring device according to claim 3, characterized in that, The second preset angle is 5°.

5. The stirring device according to claim 4, characterized in that, The preset angle is 90°.

6. The stirring apparatus according to any one of claims 2-5, characterized in that, The first, second, third, and fourth blades are all provided with a rear cutting edge.

7. The stirring apparatus according to any one of claims 2-5, characterized in that, The first, second, and third blades are tangential to the material during stirring to achieve radial mixing of the material; the fourth blade is used to reduce the rising height of the material and cause the material to reverse inward to achieve axial mixing of the material.

8. A powder mixing device, characterized in that, Includes the stirring device as described in any one of claims 1-7.

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