A high-precision flour particle screening device for flour processing
By using a screw-driven design to move the block and the lever, combined with a rotating block and a movable column, the screen can swing up and down, solving the problem that existing devices cannot effectively screen accumulated particles and improving the flour screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGLUO COUNTY YULI FLOUR FACTORY
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-12
Smart Images

Figure CN224346353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flour processing technology, specifically to a high-precision flour particle screening device for flour processing. Background Technology
[0002] Flour is a starchy powder made from wheat flour. It can be processed into a variety of foods and is a staple food in most parts of northern China. During flour processing, some larger flour particles will appear. At this time, it is necessary to screen the flour lumps to leave uniform flour particles. Current flour particle screening devices generally use a vibrating motor to drive the flour screen to shake left and right, thereby shaking and screening the flour on the screen. However, this can only screen the flour at the bottom of the screen. Some smaller flour particles that accumulate at the top are still not screened, resulting in low flour screening efficiency of the device. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a high-precision flour particle screening device for flour processing, which solves the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision flour particle screening device for flour processing, comprising a device box and two support columns. An mounting block is fixedly installed on the top of each of the two support columns. A sliding groove is formed on one side of each mounting block, and a screw is rotatably connected inside the sliding groove. A first motor is fixedly installed on one side of each mounting block, and the output end of the first motor is fixedly connected to the screw via a coupling. A movable block is threadedly connected to the outer side of the screw, and the movable block is slidably connected to the sliding groove. A mating groove is formed on one side of the device box, and one side of the movable block... A motor box is fixedly installed on the side, and the motor box is slidably connected to the slide groove. A third motor is fixedly installed inside the motor box. A rotating shaft is fixedly connected to the output end of the third motor. The end of the rotating shaft away from the third motor extends through the mating groove into the interior of the device box and is fixedly installed with a U-shaped block. Several first compression springs are fixedly installed on the top of the inner cavity of the U-shaped block. A lever is fixedly installed on one end of each of the first compression springs. The lever is slidably connected to the U-shaped block. A screen frame is rotatably connected inside the device box. A first screen and a second screen are arranged inside the screen frame.
[0005] Preferably, mounting plates are fixedly installed on corresponding sides of the screen frame, and bolts are threaded inside the two mounting plates. One end of each bolt passes through the mounting plate and extends into the interior of the first screen and the second screen, respectively, and is threadedly connected to them. By connecting the two bolts to the first screen and the second screen, the purpose of disassembling the first screen and the second screen can be achieved.
[0006] Preferably, the top of the device box is fixedly installed with a feed port, and one side of the device box is rotatably connected to two box doors through a hinge structure. Each of the two box doors is fixedly installed with a handle on one side, so that the two box doors can be opened by the workers.
[0007] Preferably, a lead screw protective sleeve is provided on the outside of the screw. The lead screw protective sleeve prevents the screw from getting covered with flour or dust after long-term use, which would affect the use of the screw.
[0008] Preferably, a second motor is fixedly installed on one side of the device box. A square groove is opened inside the device box, and a rotating block is rotatably connected inside the square groove. The output end of the second motor is fixedly connected to the rotating block through a coupling. Fixed strips are fixedly installed on both sides of the inner cavity of the device box. Two movable columns are slidably connected inside the fixed strips. Two second compression springs are fixedly installed at the bottom of the fixed strips. One end of the two movable columns passes through the two second compression springs and is fixedly connected to the movable strip. The other end of the two movable columns passes through the fixed strip and contacts the screen frame. The second motor causes the rotating block to rotate, and the rotating block hits the movable strip, causing the two movable columns to move upward. The two second compression springs restrict the movable columns, thereby achieving the purpose of swinging the first and second screens up and down.
[0009] Preferably, a first collection box and a second collection box are slidably connected to the bottom of the inner cavity of the device box, so that the falling flour can be easily collected through the first collection box and the second collection box.
[0010] Preferably, the bottom of the inner cavity of the mounting block is provided with a groove, and a wire outlet groove is provided on one side of the motor box. The wire outlet groove cooperates with the groove, and the third motor is connected to the power supply through the cooperation of the wire outlet groove and the groove.
[0011] This utility model provides a high-precision flour particle screening device for flour processing, which has the following beneficial effects:
[0012] 1. This high-precision flour particle screening device for flour processing uses a second motor to drive a rotating block to rotate. The rotating block strikes a movable bar, causing two movable columns to move up and down, thereby achieving the purpose of swinging the first and second screens up and down. The first motor starts, causing the screw to rotate. The screw is connected to the movable block by a thread, causing the movable block to move. A third motor rotates a deflector plate. The movement of the deflector plate pushes back the accumulated flour, allowing the device to fully screen the flour and preventing the accumulated flour from falling onto the second screen due to the inclined surface, thus improving the screening effect of the device. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a top view of the structure of this utility model;
[0015] Figure 3 This is a partial cross-sectional view of the movable structure of this utility model;
[0016] Figure 4 This is a side view of the internal structure of this utility model;
[0017] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;
[0018] Figure 6 This is a cross-sectional view of the internal structure of the U-shaped block of this utility model;
[0019] Figure 7 This is a side view of the screen frame of this utility model;
[0020] Figure 8 This is a front view of the structure of this utility model;
[0021] Figure 9 This is a side view of the dial of this utility model.
[0022] In the diagram: 1. Device box; 2. Feed inlet; 3. First motor; 4. Second motor; 5. Box door; 6. Handle; 7. Rotating shaft; 8. U-shaped block; 9. Mounting block; 10. First screen; 11. Screen frame; 12. Support column; 13. First compression spring; 14. Pulley; 15. Third motor; 16. Moving block; 17. Screw; 18. Slide groove; 19. Rotating block; 21. Fixing strip; 22. Second compression spring; 23. Movable column; 24. Movable strip; 27. Mounting plate; 28. Bolt; 29. First collection box; 30. Second collection box; 31. Second screen; 32. Matching groove; 33. Square groove; 34. Motor box; 35. Groove; 36. Cable outlet groove. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1 to 9This utility model provides a technical solution: a high-precision flour particle screening device for flour processing, including a device box 1 and two support columns 12. Mounting blocks 9 are fixedly installed on the top of the two support columns 12, and the mounting blocks 9 are tightly attached to the device box 1. A sliding groove 18 is provided on one side of the mounting block 9, and a screw 17 is rotatably connected inside the sliding groove 18. One end of the screw 17 rotates via a bearing. A first motor 3 is fixedly installed on one side of the mounting block 9, and the output end of the first motor 3 is fixedly connected to the screw 17 via a coupling. A moving block 16 is threadedly connected to the outer side of the screw 17, and the moving block 16 is slidably connected to the sliding groove 18. A mating groove 32 is provided on one side of the device box 1. A motor box 34 is fixedly installed on one side of block 16. The motor box 34 is slidably connected to the slide groove 18. A third motor 15 is fixedly installed inside the motor box 34. A rotating shaft 7 is fixedly connected to the output end of the third motor 15. The end of the rotating shaft 7 away from the third motor 15 extends through the mating groove 32 into the interior of the device box 1 and is fixedly installed with a U-shaped block 8. Several first compression springs 13 are fixedly installed on the top of the inner cavity of the U-shaped block 8. A lever 14 is fixedly installed on one end of the several first compression springs 13. The lever 14 is slidably connected to the U-shaped block 8. A screen frame 11 is rotatably connected inside the device box 1. A first screen 10 and a second screen 31 are arranged inside the screen frame 11.
[0025] Mounting plates 27 are fixedly installed on the corresponding sides of the screen frame 11. Bolts 28 are threadedly connected inside the two mounting plates 27. One end of the two bolts 28 passes through the mounting plates 27 and extends into the interior of the first screen 10 and the second screen 31 and is threadedly connected to them. By connecting the two bolts 28 to the first screen 10 and the second screen 31, the purpose of disassembling the first screen 10 and the second screen 31 can be achieved.
[0026] The top of the device box 1 is fixedly installed with a feed port 2. Two boxes 5 are rotatably connected to one side of the device box 1 through a hinge structure. Each of the two boxes 5 has a handle 6 fixedly installed on one side, which makes it convenient for workers to open the two boxes 5.
[0027] A lead screw protective sleeve is provided on the outside of the screw 17. The lead screw protective sleeve prevents the surface of the screw 17 from getting flour or dusty after long-term use, which would affect the use of the screw 17.
[0028] A second motor 4 is fixedly installed on one side of the device box 1. A square groove 33 is opened inside the device box 1. A rotating block 19 is rotatably connected inside the square groove 33. The output end of the second motor 4 is fixedly connected to the rotating block 19 through a coupling. Fixed bars 21 are fixedly installed on both sides of the inner cavity of the device box 1. Two movable columns 23 are slidably connected inside the fixed bars 21. Two second compression springs 22 are fixedly installed at the bottom of the fixed bars 21. One end of the two movable columns 23 passes through the two second compression springs 22 and is fixedly connected to the movable bar 24. The other end of the two movable columns 23 passes through the fixed bars 21 and contacts the screen frame 11. The second motor 4 causes the rotating block 19 to rotate. The rotating block 19 hits the movable bar 24, causing the two movable columns 23 to move upward. The two second compression springs 22 restrict the movable columns 23, thereby achieving the purpose of swinging the first screen 10 and the second screen 31 up and down.
[0029] The bottom of the inner cavity of the device box 1 is slidably connected to a first collection box 29 and a second collection box 30, which facilitates the collection of fallen flour.
[0030] The bottom of the inner cavity of the mounting block 9 has a groove 35, and one side of the motor box 34 has a cable outlet groove 36. The cable outlet groove 36 cooperates with the groove 35, allowing the third motor 15 to extend to the outside of the machine and connect to the power supply via a power cord. The power cords are all pre-installed with sufficient length. The first motor and the second motor are also connected to the indoor power supply via power cords. The controllers for the three motors are located in the device box 1 and are used for control switching.
[0031] In summary, when using this high-precision flour particle screening device for flour processing, the worker first holds the two handles 6 to open the two boxes 5, then places the first collection box 29 and the second collection box 30 into the device box 1, and then closes the two boxes 5. Next, the second motor 4 is started to drive the rotating block 19 to rotate, and the rotating block 19 strikes the movable bar 24, causing the two movable columns 23 to move up and down. The two movable columns 23 are fixedly connected to the screen frame 11, which in turn causes the screen frame 11 to swing up and down. Then, the third motor 15 inside the moving block 16 is started to rotate the rotating shaft 7 and the dial plate 14. Then, the first motor 3 is started to rotate the screw 17. The screw 17 is threadedly connected to the moving block 16, causing the moving block 16 to move. When the moving block 16 is adjusted to the connection point of the first screen 10 and the second screen 31, the worker pours half or one-third of the flour from the bag into the device box 1 through the feed port 2. During the up-and-down shaking process, the flour is screened. During the screening process, the deflector 14 contacts the connection between the first screen 10 and the second screen 31, preventing flour particles from rolling onto the second screen 31. During the screening process, the worker restarts the first motor 3, causing the moving block 16 to move upward, pushing the flour being screened upward. After the flour on the first screen 10 is screened, the first motor 3 is restarted, causing the rotating shaft 7 and the deflector 14 to rotate, preventing the deflector 14 from contacting the first screen 10 and the second screen 31. This allows larger flour particles to roll onto the second screen 31. The sieve holes of the first screen 10 are smaller than those of the second screen 31, and the flour particles fall through the sieve holes of the second screen 31 into the interior of the second collection box 30. Then, when disassembling the first screen 10 and the second screen 31, the worker opens the two box doors 5, uses tools to unscrew the two bolts 28, and pulls the first screen 10 and the second screen 31 out of the device box 1. Then, the large flour particles above the second screen 31 are removed.
[0032] 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 high-precision flour particle screening device for flour processing, comprising a device box (1) and two support columns (12), characterized in that: Mounting blocks (9) are fixedly installed on the top of the two support columns (12). A sliding groove (18) is provided on one side of the mounting block (9). A screw (17) is rotatably connected inside the sliding groove (18). A first motor (3) is fixedly installed on one side of the mounting block (9). The output end of the first motor (3) is fixedly connected to the screw (17) through a coupling. A moving block (16) is threadedly connected to the outside of the screw (17). The moving block (16) is slidably connected to the sliding groove (18). A mating groove (32) is provided on one side of the device box (1). A motor box (34) is fixedly installed on one side of the moving block (16). The motor box (34) is slidably connected to the sliding groove (18). A third motor (15) is fixedly installed inside the box (34). The output end of the third motor (15) is fixedly connected to a rotating shaft (7). The end of the rotating shaft (7) away from the third motor (15) extends through the mating groove (32) into the interior of the device box (1) and is fixedly installed with a U-shaped block (8). Several first compression springs (13) are fixedly installed on the top of the inner cavity of the U-shaped block (8). A lever (14) is fixedly installed on one end of the several first compression springs (13). The lever (14) is slidably connected to the U-shaped block (8). A screen frame (11) is rotatably connected inside the device box (1). A first screen (10) and a second screen (31) are provided inside the screen frame (11).
2. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: Mounting plates (27) are fixedly installed on the corresponding side of the screen frame (11). Bolts (28) are threaded inside the two mounting plates (27). One end of the two bolts (28) passes through the mounting plate (27) and extends into the interior of the first screen (10) and the second screen (31) and is threaded to them.
3. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: The top of the device box (1) is fixedly equipped with a feed inlet (2), and two box doors (5) are rotatably connected to one side of the device box (1) through a hinge structure. Each of the two box doors (5) is fixedly equipped with a handle (6).
4. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: The screw (17) is provided with a lead screw protective sleeve on its outer side.
5. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: A second motor (4) is fixedly installed on one side of the device box (1). A square groove (33) is opened inside the device box (1). A rotating block (19) is rotatably connected inside the square groove (33). The output end of the second motor (4) is fixedly connected to the rotating block (19) through a coupling. Fixing strips (21) are fixedly installed on both sides of the inner cavity of the device box (1). Two movable columns (23) are slidably connected inside the fixing strips (21). Two second compression springs (22) are fixedly installed at the bottom of the fixing strips (21). One end of the two movable columns (23) passes through the two second compression springs (22) and is fixedly connected to the movable strip (24). The other end of the two movable columns (23) passes through the fixing strips (21) and contacts the screen frame (11).
6. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: The device box (1) has a first collection box (29) and a second collection box (30) slidably connected to the bottom of its inner cavity.
7. The high-precision flour particle screening device for flour processing according to claim 1, characterized in that: The mounting block (9) has a groove (35) at the bottom of its inner cavity, and the motor box (34) has a wire outlet groove (36) on one side, which cooperates with the groove (35).