A flour mixing device for making multigrain steamed buns
By combining a dual-screen filter and a vibration assembly with a stirring device, the problem of clumping and impurities in whole grain flour during the mixing process is solved, achieving uniform mixing and efficient production of flour.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN BIYE FLOUR CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, whole grain flour is prone to clumping and impurities during the mixing process, resulting in uneven particle size, increased mixing resistance, and reduced mixing effect.
The system employs a dual-screen filtration device and a vibration assembly combined with a stirring device. Screen one and screen two are used for graded screening. The vibration assembly uses a motor to drive a lifting rod to vibrate the screens and remove impurities and clumps. The stirring device uses staggered stirring teeth and stirring rollers to achieve uniform mixing.
It effectively removes impurities and lumps from whole grain flour, ensuring uniform particle size, significantly reducing mixing difficulty, reducing production line footprint, improving mixing efficiency, and reducing material waste.
Smart Images

Figure CN224442837U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mixing devices, and in particular to a flour mixing device for making multigrain steamed buns. Background Technology
[0002] Whole grain flour is a powdered food made by grinding various whole grains (such as millet, corn, buckwheat, oats, red beans, etc.) individually or in combination. Compared with refined wheat flour, it retains more dietary fiber, vitamins, minerals and functional components, making it a high-quality raw material for making healthy staple foods (such as steamed buns, noodles and bread).
[0003] In the existing technology, some solutions use a vertical stirring shaft with blades installed on the shaft to mix grain flour. However, the above solutions still have some problems. For example, the grain flour may clump and contain impurities during mixing, and the flour particle size may be uneven, which increases the resistance during mixing and affects the mixing effect of the grain flour.
[0004] Therefore, in order to solve the above problems, this application provides a flour mixing device for making multigrain steamed buns. Utility Model Content
[0005] To address the problem of lumps, impurities, and uneven particle size in whole grain flour, which increases resistance during mixing, this application provides a flour mixing device for making whole grain steamed buns.
[0006] This application provides a flour mixing device for making multigrain steamed buns, comprising a mixing chamber and a top cover. The top cover is provided on the top of the mixing chamber, and a screening device is provided inside the top cover. The screening device includes:
[0007] The top of the inner cavity of the top cover has through grooves on both sides, and sliders are slidably installed in both grooves. An installation frame is fixedly connected between the two sliders. A filter screen is installed inside the installation frame. The installation frame is in contact with the inner wall of the top cover. A conical hopper is engaged at the bottom of the installation frame. A filter screen is installed at the bottom of the conical hopper.
[0008] Vibration components are provided between the two sides of the filter screen and the top of the top cover;
[0009] A stirring device is installed at the bottom of the mixing chamber.
[0010] Preferably, the vibration assembly includes:
[0011] Both of the two chutes have connecting cylinders fixedly installed on their top walls. Each of the two connecting cylinders contains an elastic element. Each of the two connecting cylinders has a connecting column at its bottom. Both connecting columns are elastically connected to the connecting cylinders via the elastic elements. A lifting rod is fixedly connected between the two connecting columns. The lifting rod passes through the two connecting cylinders and the top cover. The lifting rod slides in conjunction with the two connecting cylinders and the top cover. Two support plates are fixedly installed on the top of the top cover. A rotating shaft is rotatably connected between the two support plates. A cam is fixedly connected between the rotating shafts. The lifting rod is located in the middle of the cam, and the top of the cam contacts the bottom of the lifting rod.
[0012] Preferably, a motor is fixedly connected to one side of one of the support plates, the output end of the motor is fixedly connected to the rotating shaft, and a rotating groove is provided through the bottom of the top cover near the cam, the cam being adapted to the rotating groove.
[0013] Preferably, the top of the top cover is provided with multiple feed pipes.
[0014] Preferably, the stirring device includes:
[0015] A stirring roller is rotatably connected to the bottom wall of the mixing chamber. Multiple mixing rollers are fixedly connected to the stirring rollers. The multiple mixing rollers are arranged in an upper and lower cross shape. Multiple stirring teeth are fixedly connected to the multiple mixing rollers. The multiple stirring teeth are arranged alternately. The material of the multiple stirring teeth is food-grade silicone. A motor is fixedly connected to the bottom of the mixing chamber. The output end of the motor is fixedly connected to the stirring rollers through a coupling.
[0016] Preferably, a discharge pipe is connected to one side of the bottom of the mixing box, and a sealing cap is fitted onto one end of the discharge pipe.
[0017] Preferably, a sealing ring is fixedly connected to the top cover and the opposite side of the mixing box, and a sealing gasket is provided between the two sealing rings.
[0018] Preferably, a plurality of bolts are provided between the two sealing connecting rings, and the plurality of bolts are threadedly connected to the two sealing connecting rings, and threaded sleeves are threadedly connected to the top and bottom ends of the two bolts.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] 1. In this utility model, flour made from grains is graded and screened by setting up filter screen one and filter screen two. Filter screen one can first intercept larger particles and hard lumps to prevent them from entering the lower layer, while filter screen two further filters out small lumps and tiny impurities, ensuring that the flour particles entering the mixing box are uniform and free of foreign objects. The motor drives the lifting rod through the rotating shaft and cam, causing filter screen one, filter screen two and the conical bucket to vibrate up and down synchronously. The impact force generated by the vibration can make the flour particles continuously turn over, preventing the flour from accumulating on the surface of filter screen one and filter screen two and clogging the holes. For loose lumps formed due to slight moisture, the collision and compression during the vibration process can disperse them into fine particles, which enter the mixing box through the filter holes, reducing raw material waste. After double vibration screening, the particle difference of the grain flour is extremely small, significantly reducing the difficulty of mixing. At the same time, the screening device and vibration component are set in the top cover, eliminating the need for additional independent screening equipment and reducing the floor space of the production line.
[0021] 2. In this utility model, by arranging the mixing rollers on the stirring device in a cross shape, the material can be divided and recombined simultaneously in the vertical and horizontal directions. The multiple stirring teeth connected to the mixing rollers are arranged in an alternating manner, so that the alternating tooth structure forcibly pushes the material to flow. Even a slightly viscous mixed grain paste can be dragged and mixed by the silicone teeth, avoiding local accumulation caused by material stickiness, and allowing different grain components to blend quickly. The stirring teeth are all made of food-grade silicone, so that when the silicone teeth come into contact with the material, they can be mixed by elastic compression, reducing the material breakage rate, preserving the grain texture, and at the same time, the silicone surface is smooth, so the material does not easily stick. Attached Figure Description
[0022] Figure 1 This is a perspective view of an embodiment of this application;
[0023] Figure 2 This is a perspective cross-sectional view of an embodiment of this application;
[0024] Figure 3 This is a perspective cross-sectional view of filter screen one and filter screen two according to embodiments of this application;
[0025] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of point A.
[0026] Explanation of reference numerals in the attached drawings: 1. Mixing box; 2. Sealing ring; 3. Top cover; 4. Feed pipe; 5. Motor; 6. Cam; 7. Lifting rod; 8. Support plate; 9. Mounting frame; 10. Filter screen one; 11. Conical hopper; 12. Sealing cover; 13. Discharge pipe; 14. Stirring teeth; 15. Motor; 16. Stirring roller; 17. Elastic element; 18. Rotating shaft; 19. Rotating groove; 20. Sliding block; 21. Connecting column; 22. Connecting cylinder. Detailed Implementation
[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0029] Example 1, as Figure 1-4 As shown, this utility model provides a flour mixing device for making multigrain steamed buns, including a mixing box 1, a top cover 3, a screening device, a vibration component, and a stirring device. The top of the mixing box 1 is provided with a top cover 3. The screening device includes: a sliding groove is provided on both sides of the top of the inner cavity of the top cover 3, and a slider 20 is slidably installed in each of the two sliding grooves. An installation frame 9 is fixedly connected between the two sliders 20. A filter screen 10 is provided inside the installation frame 9. The installation frame 9 is attached to the inner wall of the top cover 3. A conical hopper 11 is snapped into the bottom of the installation frame 9. A second filter screen is provided at the bottom of the conical hopper 11. The mesh diameter of the second filter screen is smaller than that of the mesh diameter of the first filter screen 10. Multiple feed pipes 4 are connected to the top of the top cover 3.
[0030] The vibration assembly includes: connecting cylinders 22 fixedly installed on the top walls of two sliding grooves, elastic elements 17 provided inside each of the two connecting cylinders 22, connecting columns 21 provided at the bottom of each of the two connecting cylinders 22, and the two connecting columns 21 elastically connected to the connecting cylinders 22 through the elastic elements 17; a lifting rod 7 fixedly connected between the two connecting columns 21, the lifting rod 7 passing through the two connecting cylinders 22 and the top cover 3, the lifting rod 7 slidingly engaging with the two connecting cylinders 22 and the top cover 3; two support plates 8 fixedly installed on the top of the top cover 3, a rotating shaft 18 rotatably connected between the two support plates 8, a cam 6 fixedly connected between the rotating shafts 18, the lifting rod 7 located in the middle of the cam 6, the top of the cam 6 contacting the bottom of the lifting rod 7; a motor 5 fixedly connected to one side of one of the support plates 8, the output end of the motor 5 fixedly connected to the rotating shaft 18; a rotating groove 19 extending through the bottom of the top cover 3 near the cam 6, the cam 6 being adapted to the rotating groove 19.
[0031] In this embodiment, flour made from various grains is fed into the top cover 3 through multiple feed pipes 4. Then, the flour is screened through filter screen 10 and filter screen 2 to remove impurities or lumps, preventing uneven particle size during mixing. Then, motor 5 is started, which drives shaft 18 to rotate. Shaft 18 drives cam 6 to rotate. When cam 6 rotates, its outer surface presses against lifting rod 7, causing lifting rod 7 to move upward. Lifting rod 7 moves linearly on top cover 3, driving two connecting columns 21 to move upward. The two connecting columns 21 enter connecting cylinder 22, causing slider 20 to slide up and down inside the chute. The two sliders 20 drive mounting frame 9 and filter screen 10 to move up and down linearly. Mounting frame 9 drives conical bucket 11 and filter screen 2 to move up and down, thereby vibrating filter screen 10 and filter screen 2. This causes the flour accumulated on filter screen 10 and filter screen 2 to be screened through the holes and enter the bottom mixing box 1.
[0032] Example 2, as Figure 1-4 As shown, the mixing device includes: a stirring roller 16 rotatably connected to the bottom wall of the inner cavity of the mixing box 1; multiple mixing rollers fixedly connected to the stirring roller 16; the multiple mixing rollers are arranged in an upper and lower cross shape; multiple stirring teeth 14 are fixedly connected to the multiple mixing rollers; the multiple stirring teeth 14 are arranged alternately; the material of the multiple stirring teeth 14 is food-grade silicone; a motor 15 is fixedly connected to the bottom of the mixing box 1; the output end of the motor 15 is fixedly connected to the stirring roller 16 through a coupling; a discharge pipe 13 is connected to one side of the bottom of the mixing box 1; a sealing cap 12 is fitted onto one end of the discharge pipe 13; a sealing connecting ring 2 is fixedly connected to the top cover 3 on the opposite side of the mixing box 1; a sealing gasket is provided between two sealing connecting rings 2; multiple bolts are provided between two sealing connecting rings 2; the multiple bolts are threadedly connected to the two sealing connecting rings 2; and threaded sleeves are threadedly connected to the top and bottom ends of the two bolts.
[0033] In this embodiment, the motor 15 is started, which drives the stirring roller 16 to rotate. The stirring roller 16 drives multiple mixing rollers to rotate, and the mixing rollers drive multiple stirring teeth 14 to stir the grain flour, thereby mixing the grain flour evenly together. After mixing, the sealing cover 12 is opened, and the mixed grain flour is discharged through the discharge pipe 13. Then, the threaded sleeve can be turned and the bolt can be rotated to release the restriction on the two sealing rings 2, thereby separating the top cover 3 from the mixing box 1. This allows for the cleaning of the internal filter screen 10 and filter screen 2 and the stirring roller 16, ensuring that the internal parts of the mixing box 1 and the top cover 3 remain clean.
[0034] Working principle: During use, flour made from various grains is fed into the top cover 3 through multiple feed pipes 4. The flour is then sieved through filters 10 and 2 to remove impurities and lumps, preventing uneven particle size during mixing. The motor 5 is then started, driving the rotating shaft 18 to rotate, which in turn drives the cam 6. As the cam 6 rotates, its outer surface presses against the lifting rod 7, causing the lifting rod 7 to move upwards. The lifting rod 7 moves linearly across the top cover 3, moving the two connecting columns 21 upwards. The two connecting columns 21 enter the connecting cylinder 22, causing the slider 20 to slide up and down inside the groove. The two sliders 20 then move the mounting frame 9 and filter 10 linearly up and down. The mounting frame 9 moves the conical hopper 11 and filter 2 up and down. Vibrating filter screens 10 and 2 causes the accumulated grain flour on them to pass through the mesh and enter the bottom mixing chamber 1. Then, motor 15 is started, which drives the stirring roller 16 to rotate. The stirring roller 16 drives multiple mixing rollers to rotate, and the mixing rollers drive multiple stirring teeth 14 to stir the grain flour, thus mixing the grain flour evenly together. After mixing, the sealing cover 12 is opened, and the mixed grain flour is discharged through the discharge pipe 13. Then, the threaded sleeve can be turned and the bolt can be rotated to release the restriction on the two sealing rings 2, thereby separating the top cover 3 from the mixing chamber 1. This allows for the cleaning of the internal filter screens 10 and 2 and the stirring roller 16, ensuring that the internal parts of the mixing chamber 1 and the top cover 3 remain clean.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A flour mixing device for making grain dumplings, comprising a mixing box (1) and a top cover (3), characterized in that: The mixing box (1) is provided with a top cover (3), and a screening device is provided inside the top cover (3). The screening device includes: The top of the top cover (3) has through grooves on both sides of the top cavity. Slider (20) is slidably installed in each of the two grooves. An installation frame (9) is fixedly connected between the two sliders (20). A filter screen (10) is installed inside the installation frame (9). The installation frame (9) is in contact with the inner wall of the top cover (3). A conical bucket (11) is snapped into the bottom of the installation frame (9). A filter screen (2) is installed at the bottom of the conical bucket (11). Vibration components are provided between the two sides of the filter screen (10) and the top of the top cover (3); A stirring device is provided at the bottom of the inner cavity of the mixing box (1).
2. The flour mixing device for making a multi-cereal dumpling according to claim 1, characterized in that: The vibration component includes: Both of the two chutes are fixedly mounted with connecting cylinders (22) on their top walls. Both of the two connecting cylinders (22) are provided with elastic elements (17). Both of the two connecting cylinders (22) are provided with connecting columns (21) at their bottoms. Both of the two connecting columns (21) are elastically connected to the connecting cylinders (22) through the elastic elements (17). A lifting rod (7) is fixedly connected between the two connecting columns (21). The lifting rod (7) passes through the two connecting cylinders (22) and the top cover (3). The lifting rod (7) slides with the two connecting cylinders (22) and the top cover (3). Two support plates (8) are fixedly mounted on the top of the top cover (3). A rotating shaft (18) is rotatably connected between the two support plates (8). A cam (6) is fixedly connected between the rotating shafts (18). The lifting rod (7) is located in the middle of the cam (6). The top of the cam (6) is in contact with the bottom of the lifting rod (7).
3. The flour mixing device for making multigrain steamed buns according to claim 2, characterized in that: One of the support plates (8) is fixedly connected to a motor (5), the output end of the motor (5) is fixedly connected to a rotating shaft (18), and the top cover (3) is provided with a rotating groove (19) through the bottom of the cam (6), and the cam (6) is adapted to the rotating groove (19).
4. The flour mixing device for making a multi-cereal dumpling according to claim 1, characterized in that: The top of the top cover (3) is connected to multiple feed pipes (4).
5. The flour mixing device for making a multi-cereal dumpling according to claim 1, characterized in that: The stirring device includes: A stirring roller (16) is rotatably connected to the bottom wall of the inner cavity of the mixing box (1). Multiple mixing rollers are fixedly connected to the stirring roller (16). The multiple mixing rollers are arranged in an upper and lower cross shape. Multiple stirring teeth (14) are fixedly connected to the multiple mixing rollers. The multiple stirring teeth (14) are arranged alternately. The material of the multiple stirring teeth (14) is food-grade silicone. A motor (15) is fixedly connected to the bottom of the mixing box (1). The output end of the motor (15) is fixedly connected to the stirring roller (16) through a coupling.
6. The flour mixing device for making a multi-cereal dumpling according to claim 5, characterized in that: A discharge pipe (13) is connected to one side of the bottom of the mixing box (1), and a sealing cap (12) is fitted onto one end of the discharge pipe (13).
7. The flour mixing device for making a multi-cereal dumpling according to claim 1, characterized in that: The top cover (3) and the mixing box (1) are fixedly connected to a sealing ring (2) on opposite sides, and a sealing gasket is provided between the two sealing rings (2).
8. The flour mixing device for making a multi-cereal dumpling according to claim 7, characterized in that: A plurality of bolts are arranged between the two sealing connecting rings (2), and the plurality of bolts are all in threaded connection with the two sealing connecting rings (2), and the top end and the bottom end of the two bolts are all in threaded connection with a threaded sleeve.