Stone mill for producing flour

By introducing a sealing cover, sensors, and negative pressure fans into the stone mill, the problems of flour scattering and poor grinding effect have been solved, enabling automatic feeding and finer flour production, thus improving production efficiency and environmental cleanliness.

CN223847031UActive Publication Date: 2026-01-30SHANDONG YUANHE GRAIN & OIL FOOD CO LTD
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Patent Information

Application Number
CN202520071546.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-30
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing stone mills have problems in flour production, such as flour scattering, inability to automatically feed, and mediocre grinding effect.

Method used

A stone mill was designed, which includes a sealing cover, a feeding mechanism, and a discharging mechanism. The sealing cover prevents flour from scattering, the sensor enables automatic feeding, and the grinding effect is improved by multiple contact surfaces and a negative pressure fan.

Benefits of technology

It effectively prevents flour from scattering, achieves automatic feeding and finer grinding, and improves production efficiency and environmental cleanliness.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223847031U_ABST
    Figure CN223847031U_ABST
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Abstract

The utility model relates to the technical field of flour processing, in particular to a stone mill for producing flour. The upper millstone is rotatably arranged on the upper sealing cover of the lower millstone and is hermetically arranged on the outer sides of the upper millstone and the lower millstone; the feeding mechanism is arranged at the upper end of the sealing cover; the discharging mechanism is arranged at the lower end of the sealing cover. The feeding mechanism comprises a second feeding pipe arranged at the upper end of the sealing cover; the transparent pipe is arranged at the upper end of the second feeding pipe; the first feeding pipe is arranged at the upper end of the transparent pipe; the detection bracket is arranged on one side of the transparent tube; and the sensor is arranged on the detection bracket and faces the transparent tube. Flour can be prevented from drifting away, automatic feeding can be achieved, and grinding is finer and smoother.
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Description

TECHNICAL FIELD

[0001] The utility model relates to flour processing technical field, concretely is a stone mill for producing flour. BACKGROUND

[0002] In food processing, it is needed to process wheat into flour, and the traditional flour processing device is a stone mill, which is gradually replaced by modern flour machines, but the flour machine has high production efficiency, but in the production process, it is in high-temperature and high-speed working mode, the produced flour has great nutrition damage and poor taste, and even many additives are added, therefore, the stone mill flour still has irreplaceable position, especially in modern society, people pay more and more attention to health, and the stone mill flour is more and more welcomed by people.

[0003] The existing stone mill, the grinding disc mechanism is generally composed of upper grinding disc and lower grinding disc. This grinding disc mechanism structure is relatively simple, and some deficiencies exist when using: first, in the production process, flour is easy to scatter. Second, it cannot realize automatic feeding and needs manual control. Third, the grinding effect is general. UTILITY MODEL CONTENT

[0004] In order to solve the technical problems in the background art, the utility model provides a stone mill for producing flour, which can prevent flour from scattering, can realize automatic feeding, and grinding is more delicate.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A stone mill for producing flour, comprising:

[0007] Lower grinding disc;

[0008] Upper grinding disc, rotatably arranged on the lower grinding disc;

[0009] Sealing cover, sealingly arranged on the outer side of the upper grinding disc and the lower grinding disc;

[0010] Feeding mechanism, arranged on the upper end of the sealing cover;

[0011] Discharge mechanism, arranged on the lower end of the sealing cover.

[0012] Further, the feeding mechanism comprises:

[0013] Second feeding pipe, arranged on the upper end of the sealing cover;

[0014] Transparent pipe, arranged on the upper end of the second feeding pipe;

[0015] First feeding pipe, arranged on the upper end of the transparent pipe;

[0016] Detection support, arranged on one side of the transparent pipe;

[0017] A sensor is arranged on the detection support, and the sensor faces the transparent tube.

[0018] Further, the upper grinding disc comprises a second contact surface, which is a concave conical surface;

[0019] The lower grinding disc comprises a fifth contact surface, which is a convex conical surface;

[0020] The second contact surface cooperates with the fifth contact surface.

[0021] Further, the upper grinding disc comprises a horizontal first contact surface and a third contact surface, the first contact surface is located above the third contact surface, and the second contact surface is arranged between the first contact surface and the third contact surface;

[0022] The lower grinding disc comprises a horizontal fourth contact surface and a sixth contact surface, the fourth contact surface is located above the sixth contact surface, and the fifth contact surface is arranged between the fourth contact surface and the sixth contact surface;

[0023] The first contact surface cooperates with the fourth contact surface, and the third contact surface cooperates with the sixth contact surface.

[0024] Further, the first contact surface is communicated with the feeding port, and the outer end of the feeding port is provided with a hopper, and the hopper is located below the feeding mechanism.

[0025] Further, the discharging mechanism comprises:

[0026] A first discharging pipe is arranged at the lower end of the sealing cover;

[0027] A second discharging pipe is arranged at the lower end of the first discharging pipe;

[0028] A third discharging pipe is arranged at the lower end of the first discharging pipe, a filter screen is arranged at the inlet of the third discharging pipe, and the third discharging pipe is communicated with a negative pressure fan.

[0029] Further, the upper grinding disc is provided with a pushing mechanism.

[0030] Further, the lower grinding disc is mounted on the base, and the base is provided with a driving mechanism for driving the upper grinding disc.

[0031] Further, the sealing cover is provided with an observation window on one side.

[0032] The beneficial effects of the utility model are as follows:

[0033] (1) The sealing cover on the outer side can form a relatively closed space, can seal the flour in the sealing cover, can effectively prevent the flour particles from floating in the surrounding air, can maintain the cleanliness of the surrounding environment, can reduce the health and safety hidden dangers caused by the flour floating, and can also avoid the waste of the flour.

[0034] (2) The third discharge pipe is communicated with the negative pressure fan. When the equipment is running, the negative pressure fan is started, and the discharge mechanism generates suction force. The suction force not only can effectively promote the flour to be smoothly discharged from the discharge mechanism, accelerate the discharge speed and efficiency, but also can form a negative pressure environment in the sealing cover. Under the negative pressure environment, the outside air has a tendency to flow into the sealing cover, and the flour particles are more difficult to break through the restraint of the sealing cover and drift outward.

[0035] (3) The material in the transparent pipe is detected by the sensor, and automatic feeding can be realized. When the sensor detects that there is no material in the transparent pipe, a signal will be sent to the control system immediately, and the control system starts the feeding device to accurately supplement the material, so that the continuous and stable operation of the production process is ensured.

[0036] (4) It has multiple contact surfaces, and the unique design makes it have a larger grinding area compared with traditional products. In particular, a larger grinding pressure can be generated between the second contact surface and the fifth contact surface. Due to the cooperation of the larger contact area and the larger grinding pressure between the key contact surfaces, the final grinding effect is more delicate. BRIEF DESCRIPTION OF DRAWINGS

[0037] The utility model will be further explained in connection with the drawings and examples.

[0038] Figure 1 It is the structural schematic diagram of the utility model;

[0039] Figure 2 It is the partial sectional view of the utility model;

[0040] Figure 3 It is the structural schematic diagram of the feeding mechanism;

[0041] Figure 4 It is the structural schematic diagram of the upper grinding disc;

[0042] Figure 5 It is the structural schematic diagram of the lower grinding disc;

[0043] Figure 6 It is the structural schematic diagram of the discharge mechanism.

[0044] In the drawing:

[0045] 1. Feeding mechanism, 2. Sealing cover, 3. Upper grinding disc, 4. Lower grinding disc, 5. Discharge mechanism, 6. Base, 7. Pushing mechanism, 8. Funnel;

[0046] 101. First feeding pipe, 102. Transparent pipe, 103. Second feeding pipe, 104. Detection support, 105. Sensor;

[0047] 301. first contact surface, 302. second contact surface, 303. third contact surface, 304. feed inlet;

[0048] 401. fourth contact surface, 402. fifth contact surface, 403. sixth contact surface;

[0049] 501. first discharge pipe, 502. second discharge pipe, 503. third discharge pipe. DETAILED DESCRIPTION

[0050] The utility model will be further explained in detail below in combination with the drawings.

[0051] As Figure 1 , 2 shown, a stone mill for producing flour, comprising a lower millstone 4, an upper millstone 3 rotatably arranged on the lower millstone 4. A sealing cover 2 is sealingly arranged outside the upper millstone 3 and the lower millstone 4. An observation window made of transparent glass is formed on one side of the sealing cover 2, facilitating observation of the inside of the sealing cover 2. A feeding mechanism 1 is arranged at the upper end of the sealing cover 2. A discharging mechanism 5 is arranged at the lower end of the sealing cover 2. The material enters the stone mill from the feeding mechanism 1, and the ground flour is discharged from the discharging mechanism 5. The lower millstone 4 is installed on a base 6, and a driving mechanism for driving the upper millstone 3 is arranged in the base 6. The driving mechanism can drive the upper millstone 3 to rotate. The upper millstone 3 is provided with a pushing mechanism 7. In a specific implementation, the pushing mechanism 7 is a scraper, which rotates synchronously with the upper millstone 3. Thus, the ground flour is scraped into the discharging mechanism 5.

[0052] Through the sealing cover 2 outside, a relatively closed space is formed, the flour can be sealed inside the sealing cover 2, the flour particles can be effectively prevented from drifting into the surrounding air, thus maintaining the cleanliness of the surrounding environment, reducing the health and safety hazards caused by the drifting of flour, and also avoiding the waste of flour.

[0053] As Figure 3 shown, the feeding mechanism 1 comprises a second feeding pipe 103, which is arranged at the upper end of the sealing cover 2. A transparent pipe 102 is arranged at the upper end of the second feeding pipe 103. A first feeding pipe 101 is arranged at the upper end of the transparent pipe 102. A detection bracket 104 is arranged on one side of the transparent pipe 102, and the two ends of the detection bracket 104 are fixedly connected with the second feeding pipe 103 and the first feeding pipe 101 respectively. A sensor 105 is arranged on the detection bracket 104, and the sensor 105 faces the transparent pipe 102. In a specific implementation, the sensor 105 adopts a photoelectric switch. The sensor 105 can detect the presence or absence of material in the transparent pipe 102.

[0054] Automatic feeding is achieved by detecting the material level inside the transparent tube 102 using sensor 105. When sensor 105 detects that there is no material in the transparent tube 102, it immediately sends a signal to the control system, which then activates the feeding device to precisely replenish the material, ensuring the continuous and stable operation of the production process. When sensor 105 detects that the transparent tube 102 is full of material, it also immediately sends a signal to the control system, which then shuts down the feeding device.

[0055] like Figure 4 , 5 As shown, the upper grinding disc 3 includes a second contact surface 302, which is a concave conical surface. The lower grinding disc 4 includes a fifth contact surface 402, which is a convex conical surface. The second contact surface 302 and the fifth contact surface 402 mate. Since both the second contact surface 302 and the fifth contact surface 402 are inclined conical surfaces, the downward pressure of the upper grinding disc 3 can be converted into pressure between the second contact surface 302 and the fifth contact surface 402, and the pressure between the second contact surface 302 and the fifth contact surface 402 is greater than the downward pressure of the upper grinding disc 3. A greater grinding pressure can be generated between the second contact surface 302 and the fifth contact surface 402.

[0056] Furthermore, the upper grinding disc 3 includes a horizontal first contact surface 301 and a third contact surface 303, with a height difference between them. The first contact surface 301 is located above the third contact surface 303, and a second contact surface 302 is disposed between the first and third contact surfaces 301 and 303. The lower grinding disc 4 includes a horizontal fourth contact surface 401 and a sixth contact surface 403, with a height difference between them. The fourth contact surface 401 is located above the sixth contact surface 403, and a fifth contact surface 402 is disposed between the fourth and sixth contact surfaces 401 and 403. The first contact surface 301 mates with the fourth contact surface 401, and the third contact surface 303 mates with the sixth contact surface 403.

[0057] Furthermore, the first contact surface 301 is connected to the feed inlet 304, and a funnel 8 is provided at the outer end of the feed inlet 304, which is located below the feeding mechanism 1. The material enters from the feed inlet 304, first entering between the first contact surface 301 and the fourth contact surface 401 for grinding, then entering between the second contact surface 302 and the fifth contact surface 402 for grinding, and then entering between the third contact surface 303 and the sixth contact surface 403 for grinding.

[0058] The unique design of the multiple contact surfaces allows for a larger grinding area than conventional products, and in particular, a larger grinding pressure between the second contact surface 302 and the fifth contact surface 402. The combination of the larger contact area and the larger grinding pressure between the key contact surfaces results in a finer grinding result.

[0059] As shown in Figure 6 The discharging mechanism 5 includes a first discharging pipe 501 arranged at the lower end of the sealing cover 2. A second discharging pipe 502 is arranged at the lower end of the first discharging pipe 501. A third discharging pipe 503 is arranged at the lower end of the first discharging pipe 501, and a filter screen is arranged at the inlet of the third discharging pipe 503. The third discharging pipe 503 is connected with a negative pressure fan. The first discharging pipe 501 and the second discharging pipe 502 are concentrically arranged. The third discharging pipe 503 is arranged in an upwardly inclined manner. The third discharging pipe 503 is connected with the negative pressure fan. During the operation of the device, the negative pressure fan is started, and the discharging mechanism 5 generates suction force. This suction force not only effectively promotes the smooth discharge of the flour from the discharging mechanism 5, and accelerates the discharging speed and efficiency, but also forms a negative pressure environment in the sealing cover 2. In this negative pressure environment, the external air has a tendency to flow into the sealing cover 2, and the flour particles are more difficult to break through the constraint of the sealing cover 2 and drift outward.

[0060] Based on the above ideal embodiments of the present application, the relevant personnel can make various changes and modifications without deviating from the technical concept of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A stone mill for the production of flour, characterized in that, The utility model relates to a millstone for producing flour, comprising: a lower millstone (4); an upper millstone (3) rotatably arranged on the lower millstone (4); a sealing cover (2) sealingly arranged outside the upper millstone (3) and the lower millstone (4); a feeding mechanism (1) arranged at the upper end of the sealing cover (2); a discharging mechanism (5) arranged at the lower end of the sealing cover (2).

2. The millstone for producing flour according to claim 1, wherein: the feeding mechanism (1) comprises: a second feeding pipe (103) arranged at the upper end of the sealing cover (2); a transparent pipe (102) arranged at the upper end of the second feeding pipe (103); a first feeding pipe (101) arranged at the upper end of the transparent pipe (102); a detection bracket (104) arranged at one side of the transparent pipe (102); a sensor (105) arranged on the detection bracket (104) and facing the transparent pipe (102).

3. The millstone for producing flour according to claim 1, wherein: the upper millstone (3) comprises a second contact surface (302) which is a concave conical surface; the lower millstone (4) comprises a fifth contact surface (402) which is a convex conical surface; the second contact surface (302) cooperates with the fifth contact surface (402).

4. The millstone for producing flour according to claim 3, wherein: the upper millstone (3) comprises a horizontal first contact surface (301) and a horizontal third contact surface (303), the first contact surface (301) is arranged above the third contact surface (303), and the second contact surface (302) is arranged between the first contact surface (301) and the third contact surface (303); the lower millstone (4) comprises a horizontal fourth contact surface (401) and a horizontal sixth contact surface (403), the fourth contact surface (401) is arranged above the sixth contact surface (403), and the fifth contact surface (402) is arranged between the fourth contact surface (401) and the sixth contact surface (403); the first contact surface (301) cooperates with the fourth contact surface (401), and the third contact surface (303) cooperates with the sixth contact surface (403).

5. The millstone for producing flour according to claim 4, wherein: the first contact surface (301) communicates with a feeding port (304), an outer end of the feeding port (304) is provided with a hopper (8), and the hopper (8) is arranged below the feeding mechanism (1).

6. The millstone for producing flour according to claim 1, wherein: the discharging mechanism (5) comprises: a first discharging pipe (501) arranged at the lower end of the sealing cover (2); a second discharging pipe (502) arranged at the lower end of the first discharging pipe (501); a third discharging pipe (503) arranged at the lower end of the first discharging pipe (501), a filter screen is arranged at the inlet of the third discharging pipe (503), and a negative pressure fan is communicated with the third discharging pipe (503).

7. The millstone for producing flour according to claim 1, characterized in that, the upper millstone (3) is provided with a pushing mechanism (7).

8. The millstone for producing flour according to claim 1, characterized in that, the lower millstone (4) is installed on a base (6), and the base (6) is provided with a driving mechanism for driving the upper millstone (3).

9. The millstone for producing flour according to claim 1, characterized in that, one side of the sealing cover (2) is provided with an observation window.