Classification stone mill grinding machine for flour processing
By setting up coarse and fine grinding mechanisms in the grading stone mill and using a reducer gear grinding device to achieve a shared power source, the problems of large structure and high energy consumption are solved, ensuring that wheat is fully ground and improving flour quality and resource utilization efficiency.
Patent Information
- Application Number
- CN202511951806.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-03-27
AI Technical Summary
Existing grading stone mills suffer from problems such as bulky structure, low space utilization efficiency, and high energy consumption. In addition, insufficiently ground wheat enters the flour as impurities, affecting flour quality and causing resource waste.
The coarse grinding mechanism and the fine grinding mechanism are arranged vertically, and multiple independent stone grinding units can share a single power source through a reducer gear grinding device, ensuring that insufficiently ground wheat is re-ground, reducing the space occupied and energy consumption.
It improves flour quality, avoids resource waste, reduces equipment footprint and energy consumption, and achieves efficient flour production.
Smart Images
Figure CN121732278A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grading stone mill grinding machines, and more particularly to a grading stone mill grinding machine for flour processing. Background Technology
[0002] As a major global food crop, the quality of wheat flour directly determines the taste and nutritional value of flour products. Grading and grinding machines can coarsely grind wheat into flour.
[0003] During the grinding process, due to the uneven hardness of wheat grains, some wheat will not be fully ground and will be put into the collection bin along with the flour. This will cause the insufficiently ground wheat to become impurities in the flour, greatly reducing the quality of the flour. At the same time, the insufficiently ground wheat is not re-ground and is put into the collection bin, which is also a waste of resources. Existing grading stone mills typically employ a layout of multiple independent stone mill units connected in series or in parallel. This results in a large overall structure, low space utilization efficiency, and increased complexity in equipment infrastructure and plant layout. Furthermore, the independent drive between each unit also leads to increased energy consumption. Summary of the Invention
[0004] To overcome the shortcomings of the above-mentioned background technology, the present invention provides a gear grinding device for a speed reducer.
[0005] The technical solution of the present invention is: a grading stone mill for flour processing, comprising a protective cover, several support columns and a collection bucket arranged below the protective cover, and further comprising a coarse grinding mechanism and a fine grinding mechanism. The coarse grinding mechanism and the fine grinding mechanism are arranged inside the protective cover, the coarse grinding mechanism is located above the fine grinding mechanism, and a feeding body is connected above the coarse grinding mechanism. The coarse grinding mechanism includes an upper coarse grinding disc and a lower coarse grinding disc. The upper coarse grinding disc is fixedly connected inside the protective cover, and the lower coarse grinding disc is arranged below the upper coarse grinding disc. The fine grinding mechanism includes an upper fine grinding disc and a lower fine grinding disc. The lower fine grinding disc is fixedly connected inside the protective cover, and the upper fine grinding disc is arranged above the lower fine grinding disc. A second conical discharge disc is fixedly connected to the bottom of the protective cover below the lower fine grinding disc. The bottom of the second conical discharge disc is fixedly connected to several support columns. A second discharge port is opened through the center of the second conical discharge disc, and the collection bucket is located below the second discharge port.
[0006] Preferably, a sealing shell is fixedly connected inside the second discharge port, and a motor is fixedly connected inside the sealing shell. A drive shaft that rotates through the sealing shell is fixedly connected to the output end of the motor. The coarse grinding mechanism also includes a fixed disk. A fixed disk that is fixedly connected to the drive shaft is fixedly connected inside the lower coarse grinding disk. A first collecting cylinder is fixedly connected to the bottom of the fixed disk. A first conical filter disk that is fixedly connected to the protective cover is rotatably connected to the bottom of the first collecting cylinder. A first conical discharge disk that is fixedly connected to the protective cover is provided below the first conical filter disk. The bottom of the first conical discharge disk is fixedly connected to the upper fine grinding disk. A first discharge port is opened through the first conical discharge disk.
[0007] Preferably, the coarse grinding mechanism further includes a first conical guide top, a first grinding port is provided inside the upper coarse grinding disc, a first isolation cylinder is fixedly connected inside the first grinding port, a first conical guide top is fixedly connected to the top of the first isolation cylinder, the top of the drive shaft is rotatably connected to the first conical guide top, and the bottom of the first isolation cylinder is rotatably connected to the fixed disc.
[0008] Preferably, the coarse grinding mechanism further includes a first scraper, a first collection port is provided on the outer wall of the first collection cylinder, and the first scraper is fixedly connected at the first collection port. The bottom of the first scraper is rotatably connected to the first conical filter disc, and a brush is fixedly connected to the outer wall of the lower coarse grinding disc. The brush is rotatably connected to the protective cover.
[0009] Preferably, the fine grinding mechanism further includes a second isolation cylinder. The upper fine grinding disc has a second grinding port inside. Several triangular fixing strips are fixedly connected inside the upper fine grinding disc. The several triangular fixing strips are all fixedly connected to the drive shaft. The drive shaft is rotatably connected to a second conical guide top located below the several triangular fixing strips. The bottom of the second conical guide top is fixedly connected to a second isolation cylinder. The second isolation cylinder is fixedly connected to a lower fine grinding disc. The bottom of the second isolation cylinder is fixedly connected to a second collecting cylinder that is fixedly connected to the lower fine grinding disc. The outer wall of the second collecting cylinder has several second collecting ports.
[0010] Preferably, the fine grinding mechanism further includes a rotating ring, which is rotatably connected to the outer wall of the second collecting cylinder. A first torsion spring is fixed between the rotating ring and the lower fine grinding disc. Several second scrapers are fixed to the bottom of the rotating ring, and a second conical filter disc is fixed to the bottom of the several second scrapers. The second conical filter disc is rotatably connected to the protective cover.
[0011] Preferably, the fine grinding mechanism further includes a fixed body, the bottom of the second conical filter disc is fixedly connected to the fixed body which is rotatably connected to the drive shaft, a plurality of rotating shafts are rotatably connected to the fixed body, the top and bottom of the rotating shafts are fixedly connected to the fixed body with a second torsion spring, and baffles are fixedly connected to the outer walls of the plurality of rotating shafts.
[0012] Preferably, the outer wall of the drive shaft is fixedly connected with a first conveying thread and a second conveying thread, wherein the first conveying thread is located inside the first isolation cylinder and the first collection cylinder, and the second conveying thread is located inside the second isolation cylinder and the second collection cylinder.
[0013] Preferably, a semi-toothed gear is rotatably connected inside the fixed body, and the semi-toothed gear is fixedly connected to the drive shaft.
[0014] The beneficial effects of this invention are: 1. By setting up coarse grinding mechanism and fine grinding mechanism, the present invention can re-grind wheat that has not been fully coarsely and finely ground, thereby ensuring that the final flour is free of impurities and guaranteeing the quality of the flour. At the same time, re-grinding wheat that has not been fully coarsely and finely ground avoids waste of resources. 2. The coarse grinding mechanism and the fine grinding mechanism of the present invention are arranged vertically and share the same power source. This arrangement of multiple independent stone grinding units connected in series and sharing a common power source greatly reduces the footprint and saves energy consumption. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the protective cover of the present invention; Figure 3 This is a cross-sectional view of the coarse grinding mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the fixing disk of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the fine grinding mechanism of the present invention; Figure 6 This is a schematic diagram of the split structure of the rotating ring and the second collecting cylinder of the present invention; Figure 7 This is a cross-sectional view of the fixing body of the present invention; Figure 8 This is a schematic diagram of the structure of the semi-tooth gear of the present invention.
[0016] In the attached diagram, the following are the reference numerals: 1-protective cover, 2-support column, 3-feeding body, 4-collecting bucket, 5-upper coarse grinding disc, 501-first grinding port, 502-first isolation cylinder, 503-first conical guide top, 6-lower coarse grinding disc, 601-fixed disc, 602-first collecting cylinder, 603-first conical filter disc, 604-first conical discharge disc, 6041-first discharge port, 605-first scraper, 606-brush, 7-upper fine grinding disc, 701-second grinding port, 702-second isolation cylinder, 703-second... 8-Conical guide top, 8-lower fine grinding disc, 801-second conical filter disc, 802-second scraper, 803-rotating ring, 804-second collecting cylinder, 805-first torsion spring, 806-fixed body, 8061-baffle, 8062-rotating shaft, 8063-second torsion spring, 807-second conical discharge disc, 8071-second discharge port, 9-drive shaft, 901-first conveying thread, 902-triangular fixing bar, 903-second conveying thread, 904-half-tooth gear, 10-sealing shell, 11-motor. Detailed Implementation
[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0018] A grading stone mill for flour processing, such as Figures 1-8 As shown, the system includes a protective cover 1, four support columns 2 and a collection bucket 4 below the protective cover 1, a coarse grinding mechanism and a fine grinding mechanism. The coarse grinding mechanism and fine grinding mechanism are located inside the protective cover 1, with the coarse grinding mechanism located above the fine grinding mechanism. The coarse grinding mechanism is used to coarsely grind wheat flour, and the fine grinding mechanism is used to finely grind the coarsely ground wheat into flour. A feed body 3 is connected above the coarse grinding mechanism. The coarse grinding mechanism includes an upper coarse grinding disc 5 and a lower coarse grinding disc 6. The upper coarse grinding disc 5 is fixedly connected inside the protective cover 1. A lower coarse grinding disc 6 is provided below the coarse grinding disc 5. The fine grinding mechanism includes an upper fine grinding disc 7 and a lower fine grinding disc 8. The lower fine grinding disc 8 is fixedly connected inside the protective cover 1. The upper fine grinding disc 7 is provided above the lower fine grinding disc 8. A second conical discharge disc 807 is provided below the lower fine grinding disc 8 and is fixedly connected to the bottom of the protective cover 1. The bottom of the second conical discharge disc 807 is fixedly connected to four support columns 2. A second discharge port 8071 is provided through the center of the second conical discharge disc 807. The collection bucket 4 is located below the second discharge port 8071.
[0019] A sealing shell 10 is fixedly connected inside the second discharge port 8071. A motor 11 is fixedly connected inside the sealing shell 10. A drive shaft 9 that rotates through the sealing shell 1 is fixedly connected to the output end of the motor 11. The coarse grinding mechanism also includes a fixed plate 601. A fixed plate 601 that is fixedly connected to the drive shaft 9 is fixedly connected inside the lower coarse grinding plate 6. A first collecting cylinder 602 is fixedly connected to the bottom of the fixed plate 601. A first conical filter plate 603 that is fixedly connected to the protective cover 1 is rotatably connected to the bottom of the first collecting cylinder 602. A first conical discharge plate 604 that is fixedly connected to the protective cover 1 is provided below the first conical filter plate 603. The bottom of the first conical discharge plate 604 is fixedly connected to the upper fine grinding plate 7. A first discharge port 6041 is opened through the first conical discharge plate 604. The first discharge port 6041 is used to discharge the coarsely ground wheat to the fine grinding mechanism.
[0020] The coarse grinding mechanism also includes a first conical guide top 503, a first grinding port 501 is opened inside the upper coarse grinding disc 5, a first isolation cylinder 502 is fixedly connected inside the first grinding port 501, a first conical guide top 503 is fixedly connected to the top of the first isolation cylinder 502, the top of the drive shaft 9 is rotatably connected to the first conical guide top 503, the first grinding port 501 and the first conical guide top 503 correspond to the feed body 3, and the bottom of the first isolation cylinder 502 is rotatably connected to the fixed disc 601.
[0021] The coarse grinding mechanism also includes a first scraper 605. A first collection port is opened on the outer wall of the first collection cylinder 602, and the first scraper 605 is fixedly connected at the first collection port. The bottom of the first scraper 605 is rotatably connected to the first conical filter disc 603. A brush 606 is fixedly connected to the outer wall of the lower coarse grinding disc 6. The brush 606 is rotatably connected to the protective cover 1, and the bristles at the bottom of the brush 606 are in contact with the first conical filter disc 603.
[0022] The fine grinding mechanism also includes a second isolation cylinder 702. The upper fine grinding disc 7 has a second grinding port 701 inside, which corresponds to the first discharge port 6041. Four triangular fixing strips 902 are fixedly connected inside the upper fine grinding disc 7. All four triangular fixing strips 902 are fixedly connected to the drive shaft 9. The drive shaft 9 is rotatably connected to a second conical guide top 703 below the four triangular fixing strips 902. The bottom of the second conical guide top 703 is fixedly connected to the second isolation cylinder 702. The second isolation cylinder 702 is fixedly connected to the lower fine grinding disc 8. The bottom of the second isolation cylinder 702 is fixedly connected to a second collecting cylinder 804, which is fixedly connected to the lower fine grinding disc 8. The outer wall of the second collecting cylinder 804 has four second collecting ports.
[0023] The fine grinding mechanism also includes a rotating ring 803. The rotating ring 803 is rotatably connected to the outer wall of the second collecting cylinder 804. A first torsion spring 805 is fixed between the rotating ring 803 and the lower fine grinding disc 8. Four second scrapers 802 are fixed to the bottom of the rotating ring 803. A second conical filter disc 801 is fixed to the bottom of the four second scrapers 802. The second conical filter disc 801 is rotatably connected to the protective cover 1.
[0024] The fine grinding mechanism also includes a fixed body 806. The bottom of the second conical filter disc 801 is fixedly connected to the fixed body 806, which is rotatably connected to the drive shaft 9. Several rotating shafts 8062 are rotatably connected inside the fixed body 806. The top and bottom of the rotating shafts 8062 are fixedly connected to the fixed body 806 with second torsion springs 8063. The sum of the elastic forces of the several second torsion springs 8063 is greater than the elastic force of the first torsion spring 805. Baffles 8061 are fixedly connected to the outer walls of the several rotating shafts 8062.
[0025] The outer wall of the drive shaft 9 is fixed with a first conveying thread 901 and a second conveying thread 903. The first conveying thread 901 is located inside the first isolation cylinder 502 and the first collection cylinder 602, and the second conveying thread 903 is located inside the second isolation cylinder 702 and the second collection cylinder 804.
[0026] A semi-toothed gear 904 is rotatably connected inside the fixed body 806. The semi-toothed gear 904 is fixedly connected to the drive shaft 9 and meshes with several baffles 8061.
[0027] When it is necessary to grind wheat into flour, the wheat is poured into the coarse grinding mechanism from the feed body 3. The wheat at the feed body 3 moves downward and comes into contact with the first conical guide top 503. The conical first guide top 503 guides the wheat so that it falls into the first grinding port 501. The motor 11 is started, and the motor 11 drives the first conveying thread 901, four triangular fixing bars 902, the second conveying thread 903, the half-tooth gear 904 and the fixed plate 601 to rotate synchronously through the drive shaft 9. The fixed plate 601 drives the lower coarse grinding plate 6 and The first feed cylinder 602 rotates synchronously, and the rotation of the lower coarse grinding disc 6 cooperates with the upper coarse grinding disc 5 to coarsely grind the wheat between the upper coarse grinding disc 5 and the lower coarse grinding disc 6. The coarse grinding of the wheat by the upper coarse grinding disc 5 and the lower coarse grinding disc 6 will grind the wheat into smaller particles. When the lower coarse grinding disc 6 rotates, it will generate centrifugal force, which can discharge the coarsely ground wheat from between the upper coarse grinding disc 5 and the lower coarse grinding disc 6. The discharge position is located at the edge of the upper coarse grinding disc 5 and the lower coarse grinding disc 6, and it falls onto the first conical filter disc 603. The rotation of the lower coarse grinding disc 6 will drive the brush 6 Simultaneously rotating, the brush 606 cleans the coarsely ground wheat on the first conical filter disc 603 using its bristles. This movement causes the coarsely ground wheat to move along the inclined surface of the first conical filter disc 603, eventually reaching its center. Simultaneously, the first collecting cylinder 602 drives the first scraper 605 to rotate synchronously. The rotation of the first scraper 605 pushes the coarsely ground wheat on the first conical filter disc 603, causing it to follow the scraper 605. 05 Synchronous movement: In the above process, after the wheat is coarsely ground, the smaller wheat particles will be filtered by the first conical filter disc 603 and fall onto the first conical discharge disc 604. The larger wheat particles cannot be filtered by the first conical filter disc 603 and will move along the inclined surface of the first conical filter disc 603. The first scraper 605 pushes the wheat, which can filter the smaller wheat particles that have not been filtered by the first conical filter disc 603 in time, and at the same time prevent the larger wheat particles from clogging the first conical filter disc 603. When larger wheat grains move to the center of the first conical filter disc 603, they will come into contact with the first collecting cylinder 602. As the first collecting cylinder 602 rotates and the first scraper 605 pushes it, the larger wheat grains will enter the first collecting cylinder 602 through the first collecting port. The rotation of the first conveying thread 901 can convey the larger wheat grains in the first collecting cylinder 602 upwards, and finally convey them to the space between the top of the first isolation cylinder 502 and the bottom of the first conical guide top 503, and discharge them from the first isolation cylinder 502 and the first conical guide top 503. At this time, the larger wheat grains will re-enter the first grinding port 501 and be ground again. It should be noted that the first conveying thread 901 is constantly rotating, and the space between the first isolation cylinder 502 and the first conical guide top 503 is always in the state of discharging wheat. Therefore, wheat will not enter the first isolation cylinder 502 from the space between the first isolation cylinder 502 and the first conical guide top 503. After the smaller wheat grains fall onto the first conical discharge disc 604, they move along the inclined surface of the first conical discharge disc 604 towards the first discharge port 6041, and then fall from the first discharge port 6041 into the second grinding port 701. Since the four triangular fixing bars 902 rotate synchronously with the drive shaft 9, the drive shaft 9 will drive the upper fine grinding disc 7 to rotate synchronously through the four triangular fixing bars 902. The rotation of the upper fine grinding disc 7 will cooperate with the lower fine grinding disc 8, thereby finely grinding the wheat in the second grinding port 701. The milled wheat will be in powder form, which is flour. The rotation of the upper fine milling disc 7 will generate centrifugal force, which can discharge the finely milled wheat between the upper fine milling disc 7 and the lower fine milling disc 8. The discharge position is located at the edge of the upper fine milling disc 7 and the lower fine milling disc 8. After being discharged, the finely milled wheat will fall onto the second conical filter disc 801 and be filtered by the second conical filter disc 801. The formed flour will be filtered through the second conical filter disc 801, while the unformed wheat cannot be filtered through the second conical filter disc 801. When the semi-gear 904 rotates synchronously with the drive shaft 9, the semi-gear 904 will drive several baffles 8061 to rotate synchronously. The baffles 8061 drive the fixed body 806 to rotate synchronously via the rotating shaft 8062. The fixed body 806 drives the second conical filter disc 801 to rotate synchronously. The second conical filter disc 801 drives four second scrapers 802 to rotate synchronously. The second scrapers 802 drive the rotating ring 803 to rotate synchronously. Due to the total elastic force of several second torsion springs 8063... The force of the first torsion spring 805 is greater than the elastic force of the second torsion spring 8063. Therefore, the first torsion spring 805 will contract at this time. As the first torsion spring 805 contracts, its elastic coefficient continues to increase. When the elastic coefficient of the first torsion spring 805 increases to a certain extent, the elastic force of the first torsion spring 805 will be greater than the sum of the elastic forces of several second torsion springs 8063. At this time, the first torsion spring 805 will no longer contract, and the second conical filter disc 801, the second scraper 802, and the rotating ring 803 will no longer rotate, while the half-tooth gear 904 will still... During rotation, the half-tooth gear 904 will no longer push the baffle 8061 to make the fixed body 806 rotate synchronously with the drive shaft 9. Instead, it will directly push the baffle 8061 to rotate around the rotating shaft 8062 as the center point. The second torsion spring 8063 will retract, and the baffle 8061 will no longer mesh with the half-tooth gear 904 after rotation. At this time, the first torsion spring 805 will be released, and the rotating ring 803 will drive the second scraper 802 and the second conical filter disc 801 to rotate and reset. The filter disc 801 drives the fixed body 806 to rotate and reset. The fixed body 806 drives the baffle 8061 to rotate synchronously through the rotating shaft 8062, which eventually causes the baffle 8061 to be misaligned with the half-tooth gear 904. The second torsion spring 8063 is released and drives the baffle 8061 to rotate and reset. As the half-tooth gear 904 rotates, the half-tooth gear 904 will re-mesh with several baffles 8061 and repeat the above steps, thereby enabling the second conical filter disc 801 to reciprocate. In the above process, the second conical filter disc 801 rotates synchronously with the drive shaft 9 at a relatively slow speed. The second conical filter disc 801 can drive the finely ground wheat on it to rotate synchronously. However, the reset rotation of the second conical filter disc 801 is faster and does not drive the finely ground wheat to rotate synchronously. Instead, it causes the finely ground wheat to move irregularly. Because the inside of the second conical filter disc 801 is inclined, when the wheat moves irregularly, it will move towards the center of the second conical filter disc 801, eventually colliding with the second scraper 802 and the second collecting cylinder 804. During this process, wheat that is not promptly removed by the second conical filter disc... The flour filtered by 801 will also be filtered by the second conical filter disc 801 at this time. The second scraper 802 rotates synchronously with the second conical filter disc 801, which can push the wheat to the second collection port of the second collection cylinder 804, so that the wheat enters the second collection cylinder 804 through the second collection port. The rotation of the second conveying thread 903 can convey the wheat in the second collection cylinder 804 upward, and finally convey it to the space between the second scraper 802 and the rotating ring 803. It is then discharged back into the second grinding port 701 between the second scraper 802 and the rotating ring 803, so that the wheat that has not been finely ground into flour can be finely ground again. After being filtered by the second conical filter plate 801, the flour falls back onto the second conical discharge plate 807 and moves along the second conical discharge plate 807 toward the second discharge port 8071. Finally, it is discharged from the second discharge port 8071 and falls into the collection bucket 4. The sealing shell 10 can prevent flour dust from entering the motor 11.
[0028] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A grading stone mill for flour processing, comprising a protective cover (1), wherein a plurality of support columns (2) and a collection bucket (4) are arranged below the protective cover (1), characterized in that: It also includes a coarse grinding mechanism and a fine grinding mechanism. The protective cover (1) is equipped with a coarse grinding mechanism and a fine grinding mechanism. The coarse grinding mechanism is located above the fine grinding mechanism. A feed body (3) is connected above the coarse grinding mechanism. The coarse grinding mechanism includes an upper coarse grinding disc (5) and a lower coarse grinding disc (6). The upper coarse grinding disc (5) is fixed inside the protective cover (1). The lower coarse grinding disc (6) is arranged below the upper coarse grinding disc (5). The fine grinding mechanism includes an upper fine grinding disc (7) and a lower fine grinding disc (8). The protective cover (1) has a lower fine grinding disc (8) fixed inside, and an upper fine grinding disc (7) is provided above the lower fine grinding disc (8). A second conical discharge disc (807) is provided below the lower fine grinding disc (8) and fixed to the bottom of the protective cover (1). The bottom of the second conical discharge disc (807) is fixed to several support columns (2). A second discharge port (8071) is provided through the center of the second conical discharge disc (807). The collection bucket (4) is located below the second discharge port (8071).
2. The grading stone mill grinding machine for flour processing according to claim 1, characterized in that: The second discharge port (8071) is fixedly connected to a sealing shell (10), and a motor (11) is fixedly connected inside the sealing shell (10). The output end of the motor (11) is fixedly connected to a drive shaft (9) that rotates through the sealing shell (10). The coarse grinding mechanism also includes a fixed disk (601). The lower coarse grinding disk (6) is fixedly connected to a fixed disk (601) that is fixedly connected to the drive shaft (9). The bottom of the fixed disk (601) is fixedly connected to a first collecting cylinder (602). The bottom of the first collecting cylinder (602) is rotatably connected to a first conical filter disk (603) that is fixedly connected to the protective cover (1). Below the first conical filter disk (603) is a first conical discharge disk (604) that is fixedly connected to the protective cover (1). The bottom of the first conical discharge disk (604) is fixedly connected to the upper fine grinding disk (7). The first conical discharge disk (604) is provided with a first discharge port (6041) that runs through it.
3. The grading stone mill grinding machine for flour processing according to claim 2, characterized in that: The coarse grinding mechanism also includes a first conical guide top (503), and a first grinding port (501) is opened inside the upper coarse grinding disc (5). A first isolation cylinder (502) is fixedly connected inside the first grinding port (501). The first conical guide top (503) is fixedly connected to the top of the first isolation cylinder (502). The top of the drive shaft (9) is rotatably connected to the first conical guide top (503), and the bottom of the first isolation cylinder (502) is rotatably connected to the fixed disc (601).
4. A grading stone mill for flour processing according to claim 3, characterized in that: The coarse grinding mechanism also includes a first scraper (605), a first collection port is provided on the outer wall of the first collection cylinder (602), and the first scraper (605) is fixedly connected at the first collection port. The bottom of the first scraper (605) is rotatably connected to the first conical filter disc (603). A brush (606) is fixedly connected to the outer wall of the lower coarse grinding disc (6), and the brush (606) is rotatably connected to the protective cover (1).
5. A grading stone mill for flour processing according to claim 4, characterized in that: The fine grinding mechanism also includes a second isolation cylinder (702). The upper fine grinding disc (7) has a second grinding port (701) inside. Several triangular fixing strips (902) are fixed inside the upper fine grinding disc (7). Several triangular fixing strips (902) are fixed to the drive shaft (9). The drive shaft (9) is rotatably connected to a second conical guide top (703) below several triangular fixing strips (902). The bottom of the second conical guide top (703) is fixed to the second isolation cylinder (702). The second isolation cylinder (702) is fixed to the lower fine grinding disc (8). The bottom of the second isolation cylinder (702) is fixed to a second collecting cylinder (804) which is fixed to the lower fine grinding disc (8). Several second collecting ports are opened on the outer wall of the second collecting cylinder (804).
6. A grading stone mill for flour processing according to claim 5, characterized in that: The fine grinding mechanism also includes a rotating ring (803), which is rotatably connected to the outer wall of the second collecting cylinder (804). A first torsion spring (805) is fixed between the rotating ring (803) and the lower fine grinding disc (8). Several second scrapers (802) are fixed to the bottom of the rotating ring (803), and a second conical filter disc (801) is fixed to the bottom of the several second scrapers (802). The second conical filter disc (801) is rotatably connected to the protective cover (1).
7. A grading stone mill for flour processing according to claim 6, characterized in that: The fine grinding mechanism also includes a fixed body (806), the bottom of the second conical filter disc (801) is fixedly connected to the fixed body (806) which is rotatably connected to the drive shaft (9), a plurality of rotating shafts (8062) are rotatably connected inside the fixed body (806), the top and bottom of the rotating shafts (8062) are fixedly connected to the fixed body (806) with a second torsion spring (8063), and the outer walls of the plurality of rotating shafts (8062) are fixedly connected with baffles (8061).
8. A grading stone mill for flour processing according to claim 7, characterized in that: The drive shaft (9) has a first conveying thread (901) and a second conveying thread (903) fixedly connected to its outer wall. The first conveying thread (901) is located inside the first isolation cylinder (502) and the first collection cylinder (602), and the second conveying thread (903) is located inside the second isolation cylinder (702) and the second collection cylinder (804).
9. A grading stone mill for flour processing according to claim 8, characterized in that: The fixed body (806) is rotatably connected to a half-tooth gear (904), which is fixedly connected to the drive shaft (9).