High-efficiency energy-saving flour grinding machine
The high-efficiency and energy-saving flour mill, with its double-layer screen and eccentric wheel drive system, has solved the problem of uneven flour size, achieved high-efficiency and energy-saving flour production, and improved production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DASHENG FLOUR CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-06-23
AI Technical Summary
In the current flour milling process, uneven flour coarseness requires rework, resulting in low production efficiency.
The system employs a double-layer sieve structure and an eccentric wheel drive system to achieve re-grinding and sieving of flour. The vibration of the first and second sieves ensures the uniformity and quality of the flour.
It improves the efficiency and quality of flour grinding, reduces rework rate, enhances overall production efficiency, and simplifies the cleaning and replacement process of sieves.
Smart Images
Figure CN224388886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding machine technology, specifically a high-efficiency and energy-saving flour grinding machine. Background Technology
[0002] Flour is a powdery substance made from wheat. Based on the protein content, flour can be classified into high-gluten flour, medium-gluten flour, low-gluten flour, and gluten-free flour. When grinding flour, two grinding rollers usually rotate in opposite directions to grind the wheat into powder. However, because wheat grains vary in size, the flour may be uneven in size after one grinding, requiring rework, which greatly reduces the overall production efficiency. Utility Model Content
[0003] To address the problem that uneven flour coarseness occurs after a single grinding cycle, requiring rework and significantly reducing overall production efficiency, the purpose of this invention is to provide a high-efficiency and energy-saving flour grinding machine.
[0004] To solve the above technical problems, the present invention adopts the following technical solution: a high-efficiency and energy-saving flour grinding machine, comprising a box body, a grinding box fixedly installed at the top edge of the box body, two first grinding rollers rotatably installed at the bottom of the grinding box, a first gear fixedly installed on the outside of each of the two first grinding rollers, the first gears meshing with each other, a discharge port penetrating through the top of the box body below the grinding box, an inclined first screen and an inclined second screen provided inside the box body, the second screen being located below the first screen, a first discharge port penetrating through the top of the first screen, two second grinding rollers rotatably installed at the bottom of the box body, the second grinding rollers being located between the first and second screens, the second grinding rollers being located directly below the first discharge port, a second gear fixedly installed on the outside of each of the two second grinding rollers, the second gears meshing with each other, a second discharge port penetrating through the top edge of the second screen, a first discharge port corresponding to the second discharge port penetrating through the bottom of the box body, and a second discharge port penetrating through the lower surface of the box body;
[0005] Both sides of the first and second screens are fixedly installed with connecting plates. On each side of the two connecting plates, two vertical plates are fixedly installed on the side away from the first screen. A fixing plate is fixedly installed on the side of the vertical plate away from the connecting plates. Both sides of the box body are provided with through slots that cooperate with the fixing plates. A guide rod is fixedly installed at the top of the fixing plate. A fixing block is rotatably sleeved on the outside of the guide rod. The fixing block is fixedly connected to the box body. Both sides of the box body are fixedly installed with two fixing seats. A rotating shaft is rotatably passed through the middle of the fixing seat. An eccentric wheel that cooperates with the fixing plate is fixedly installed on the outside of the rotating shaft. The rotating shaft is located at the eccentric point of the eccentric wheel.
[0006] Preferably, the outer side of the box is hinged with a box door, and both sides of the first screen and the second screen are fixedly installed with locking blocks, and the inner side of each connecting plate is provided with a locking groove for use with the locking block.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. This application enables the re-grinding of flour that does not meet the requirements, avoiding uneven fineness of the ground flour, improving grinding efficiency and quality, reducing material rework rate, and improving overall production efficiency.
[0009] 2. This application is simple to operate, making it easy to remove the first and second screens from the box for cleaning and replacement. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle.
[0013] Figure 3 This is a schematic diagram of the other side of the box body in this utility model.
[0014] Figure 4 This is a schematic diagram of the internal structure of the box in this utility model.
[0015] Figure 5 This is a schematic diagram of the connection structure between the card block and the card slot in this utility model.
[0016] Figure 6 This is a schematic diagram of the connection structure between the inclined plate and the support plate in this utility model.
[0017] In the diagram: 1. Box body; 10. First discharge port; 11. Grinding box; 12. First grinding roller; 13. Feed port; 14. First screen; 15. Second screen; 16. First discharge port; 17. Second grinding roller; 18. Second discharge port; 19. Second discharge port; 2. Connecting plate; 21. Vertical plate; 22. Fixing plate; 23. Through groove; 24. Guide rod; 25. Fixing block; 26. Fixing seat; 27. Rotating shaft; 28. Eccentric wheel; 3. Box door; 31. Locking block; 32. Locking groove; 4. Support plate; 41. Inclined plate; 5. Feed pipe; 6. Spring; 7. First discharge hopper; 71. Second discharge hopper; 8. Baffle. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example: Figure 1-6 As shown, this utility model provides a high-efficiency and energy-saving flour mill, including a housing 1. A grinding box 11 is fixedly installed at the top edge of the housing 1. Two first grinding rollers 12 are rotatably installed at the bottom of the grinding box 11. First gears are fixedly installed on the outside of each of the two first grinding rollers 12, and the first gears mesh with each other. A feeding port 13 is provided at the top of the housing 1 below the grinding box 11. An inclined first screen 14 and an inclined second screen 15 are provided inside the housing 1. The second screen 15 is located below the first screen 14, and the top of the first screen 14 is... A first discharge port 16 is provided. Two second grinding rollers 17 are rotatably installed at the bottom of the box body 1. The second grinding rollers 17 are located between the first screen 14 and the second screen 15. The second grinding rollers 17 are located directly below the first discharge port 16. Second gears are fixedly installed on the outside of the two second grinding rollers 17. The second gears mesh with each other. A second discharge port 18 is provided through the top edge of the second screen 15. A first discharge port 10 corresponding to the second discharge port 18 is provided through the bottom end of the box body 1. A second discharge port 19 is provided through the lower surface of the box body 1.
[0020] Connecting plates 2 are fixedly installed on both sides of the first screen 14 and the second screen 15. Two vertical plates 21 are fixedly installed on the side of each connecting plate 2 away from the first screen 14. A fixing plate 22 is fixedly installed on the side of the vertical plate 21 away from the connecting plate 2. Through slots 23 that cooperate with the fixing plates 22 are opened on both sides of the box body 1. A guide rod 24 is fixedly installed at the top of the fixing plate 22. A fixing block 25 is rotatably sleeved on the outside of the guide rod 24. The fixing block 25 is fixedly connected to the box body 1. Two fixing seats 26 are fixedly installed on both sides of the box body 1. A rotating shaft 27 is rotatably passed through the middle of the fixing seat 26. An eccentric wheel 28 that cooperates with the fixing plate 22 is fixedly installed on the outside of the rotating shaft 27. The rotating shaft 27 is located at the eccentric part of the eccentric wheel 28.
[0021] The outer side of the box 1 is hinged with a box door 3. Both sides of the first screen 14 and the second screen 15 are fixedly installed with a locking block 31. The inner side of each connecting plate 2 is provided with a slot 32 that cooperates with the locking block 31.
[0022] Two sets of support plates 4 are fixedly installed on the upper surface of the inner wall of the box 1. The two sets of support plates 4 are located on both sides of the second discharge port 19. Each set of support plates 4 has a fixed inclined plate 41 at its top. The two inclined plates 41 are opposite to each other. By setting the inclined plates 41, it is easier for the sieved flour to be discharged from the second discharge port 19.
[0023] The bottom end of the second screen 15 is fixedly installed with a feed pipe 5 at the second discharge port 18. By setting the feed pipe 5, it is easier for the wheat bran after screening to be discharged from the first discharge port 10, thus avoiding the flour and wheat bran from mixing together after being screened by the second screen 15, which would affect the separation of wheat bran and flour.
[0024] A spring 6 is fixedly installed between each fixed block 25 and the fixed plate 22. The spring 6 is located outside the guide rod 24. By setting the spring 6, when the fixed plate 22 moves up and down, the spring 6 contracts up and down, thereby increasing the frequency of the fixed plate 22 driving the first screen 14 and the second screen 15 to shake up and down, and improving the screening efficiency of the first screen 14 and the second screen 15.
[0025] A first discharge hopper 7 is fixedly installed at the bottom of the box body 1 at the first discharge port 10, and a second discharge hopper 71 is fixedly installed at the bottom of the box body 1 at the second discharge port 19. By setting the first discharge hopper 7, when collecting the wheat bran after sieving, it is not necessary to use a large collection box to collect the bran, which makes it convenient to take out and put in the collection box. Similarly, by setting the second discharge hopper 71, when collecting the flour after sieving, it is not necessary to use a large collection box to collect the bran, which also makes it convenient to take out and put in the collection box.
[0026] Two symmetrically distributed baffles 8 are fixedly installed at the top of the first screen 14 and the second screen 15. The baffles 8 are located at the edges of the first screen 14 and the second screen 15, respectively. By setting the baffles 8, the wheat that has been ground on the first screen 14 and the second screen 15 is prevented from falling directly to the bottom of the box 1 through the gap between the edges of the first screen 14 and the second screen 15 and the box 1, thus avoiding waste of wheat.
[0027] One of the first grinding rollers 12 and one of the second grinding rollers 17 are connected by a first synchronous belt, and two rotating shafts 27 are connected by a second synchronous belt. A first motor is fixedly installed on the upper surface of the housing 1, and the first motor is fixedly connected to another first grinding roller 12. A second motor is provided on the side of the housing 1 away from the door 3, and the second motor is fixedly connected to the rotating shaft 27. Both the first and second synchronous belts are driven by pulleys and transmission belts. In use, the first and second synchronous belts can be toothed or other types, as long as they can form synchronous transmission. The second synchronous belt is opposite to the door 3, the first synchronous belt is opposite to the second gear, the first gear is on the same side as the first synchronous belt, and the first gear and the second gear are opposite to each other. The housing 1 is supported by two symmetrically distributed sets of first support legs, and the second motor is supported by the second support legs.
[0028] Working principle: In actual use, starting the first motor drives one of the first grinding rollers 12 and the first gear to rotate. The rotation of the first gear drives the other first gear and the other first grinding roller 12 to rotate in the opposite direction. Simultaneously, one of the first grinding rollers 12 is connected to one of the second grinding rollers 17 via a first synchronous belt. Thus, the rotation of one first grinding roller 12 drives the other second grinding roller 17 and the second gear to rotate, and the rotation of the second gear drives the other second gear and the second grinding roller 17 to rotate in the opposite direction. The start of the motor drives one of the rotating shafts 27 to rotate, and then drives the other rotating shaft 27 to rotate simultaneously through the transmission connection of the second synchronous belt. The rotation of the rotating shaft 27 drives the corresponding eccentric wheel 28 to rotate. The rotation of the eccentric wheel 28 drives the fixed plate 22 to move back and forth up and down in the through groove 23. The guide rod 24 moves up and down in the fixed block 25. The upward movement of the fixed plate 22 causes the first screen 14 and the second screen 15 to vibrate in the box 1, thereby preventing the first screen 14 and the second screen 15 from being blocked by flour, which would affect the sieving of flour.
[0029] Wheat is then fed into the hopper above the grinding box 11 and falls onto the two first grinding rollers 12. The two first grinding rollers 12 rotate in opposite directions through the meshing first gears to grind the wheat. The ground wheat then falls into the first screen 14 through the discharge port 13 at the top of the box 1. Under the shaking and inclined action of the first screen 14, the flour and wheat husks that meet the requirements fall directly onto the second screen 15. The wheat that does not meet the requirements is discharged from the first discharge port 16 on the first screen 14 by shaking and falls between the two second grinding rollers 17 for a second grinding. The ground wheat falls directly onto the second screen 15.
[0030] The flour that falls onto the second sieve 15 is then shaken so that it falls directly through the mesh of the second sieve 15 and is discharged from the second outlet 19. The wheat bran that is sieved falls from the second discharge outlet 18 on the second sieve 15 and is discharged from the first outlet 10.
[0031] When it is necessary to clean the first screen 14 and the second screen 15, open the box door 3 and then pull the first screen 14 and the second screen 15 directly out of the box 1. When it is necessary to install, the locking block 31 on the first screen 14 should be aligned with the locking slot 32, and the locking block 31 should be inserted into the locking slot 32. The installation of the second screen 15 is the same.
[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A high-efficiency and energy-saving flour mill, comprising a housing (1), characterized in that: A grinding box (11) is fixedly installed at the top edge of the box (1). Two first grinding rollers (12) are rotatably installed at the bottom of the grinding box (11). A first gear is fixedly installed on the outside of each of the two first grinding rollers (12). The first gears mesh with each other. A discharge port (13) is opened through the top of the box (1) below the grinding box (11). An inclined first screen (14) and an inclined second screen (15) are provided inside the box (1). The second screen (15) is located below the first screen (14). A first discharge port (16) is opened through the top of the first screen (14). Two second grinding rollers (17) are rotatably installed at the bottom of the box (1). The second grinding rollers (17) are located between the first screen (14) and the second screen (15). The second grinding rollers (17) are located directly below the first discharge port (16). The two second grinding rollers (17) are fixedly installed with second gears on their exteriors. The second gears mesh with each other. The top edge of the second screen (15) is provided with a second discharge port (18). The bottom end of the box (1) is provided with a first discharge port (10) corresponding to the second discharge port (18). The lower surface of the box (1) is provided with a second discharge port (19). Connecting plates (2) are fixedly installed on both sides of the first screen (14) and the second screen (15). Two vertical plates (21) are fixedly installed on the side of each of the two connecting plates (2) away from the first screen (14). A fixing plate (22) is fixedly installed on the side of the vertical plate (21) away from the connecting plate (2). A through groove (23) is opened on both sides of the box (1) to cooperate with the fixing plate (22). A guide rod (24) is fixedly installed at the top of the fixing plate (22). A fixing block (25) is rotatably sleeved on the outside of the guide rod (24). The fixing block (25) is fixedly connected to the box (1). Two fixing seats (26) are fixedly installed on both sides of the box (1). A rotating shaft (27) is rotatably passed through the middle of the fixing seat (26). An eccentric wheel (28) is fixedly installed on the outside of the rotating shaft (27) to cooperate with the fixing plate (22). The rotating shaft (27) is located at the eccentric part of the eccentric wheel (28).
2. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, The outer side of the box (1) is hinged with a box door (3), and both sides of the first screen (14) and the second screen (15) are fixedly installed with a card block (31). The inner side of each connecting plate (2) is provided with a card slot (32) that cooperates with the card block (31).
3. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, Two sets of support plates (4) are fixedly installed on the upper surface of the inner wall of the box (1). The two sets of support plates (4) are located on both sides of the second discharge port (19). Each set of support plates (4) has a sloping plate (41) fixedly installed at the top. The two sloping plates (41) are opposite to each other.
4. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, The bottom end of the second screen (15) is fixedly installed with a discharge pipe (5) at the position of the second discharge port (18).
5. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, A spring (6) is fixedly installed between each of the fixed blocks (25) and the fixed plate (22), and the spring (6) is located outside the guide rod (24).
6. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, The bottom of the box (1) is fixedly installed with a first discharge hopper (7) at the first discharge port (10) and the bottom of the box (1) is fixedly installed with a second discharge hopper (71) at the second discharge port (19).
7. The high-efficiency and energy-saving flour mill as described in claim 1, characterized in that, The top of the first screen (14) and the second screen (15) are each fixedly equipped with two symmetrically distributed baffles (8), which are located at the edges of the first screen (14) and the second screen (15), respectively.
8. A high-efficiency and energy-saving flour mill as described in claim 2, characterized in that, One of the first grinding rollers (12) and one of the second grinding rollers (17) are connected by a first synchronous belt drive, and the two rotating shafts (27) are connected by a second synchronous belt drive. A first motor is fixedly installed on the upper surface of the housing (1). The first motor is fixedly connected to the other first grinding roller (12). A second motor is provided on the side of the housing (1) away from the door (3). The second motor is fixedly connected to the rotating shaft (27).