Flour mill for loose powder manufacturing

By designing a three-layer mill and filter layers of different diameters, combined with vibrators and blowers, the problem that existing mills cannot effectively screen powder is solved, the fineness and uniformity of the powder is improved, and the loose powder is improved quality and production efficiency.

CN222343061UActive Publication Date: 2025-01-14湖州欧思兰化妆品有限公司
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Patent Information

Application Number
CN202420764069.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2025-01-14
Estimated Expiration
2034-04-15

AI Technical Summary

Technical Problem

The existing grinder has only one grinding mechanism, which cannot effectively screen the grinded powder, resulting in different sizes of powder particles, affecting the texture and touch of the loose powder, and making it difficult to ensure fineness and uniformity.

Method used

A three-layer mill is designed, which is the first milling layer, the second milling layer and the third stirring layer, and is provided with filter layers of different diameters. By stepping grinding and filtration, it is combined with a vibrator. and blower to ensure even distribution and collection of powders, making it easier to obtain a more delicate and natural powder.

Benefits of technology

Through multi-layer grinding and stirring, step by step filtration, the fineness and uniformity of powder particles are improved, the quality and uniformity of loose powder are improved, the accumulation and uneven distribution of powder are avoided, and operation and maintenance are simplified.

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Abstract

The utility model relates to a powder mill for loose powder manufacturing, which comprises a grinding device and a collecting device wrapped outside the grinding device, the grinding device is a rectangular device and is divided into three layers, the uppermost layer is a first powder milling layer, the middle layer is a second powder milling layer, and the lowermost layer is a third stirring layer. A first filtering layer is arranged between the first grinding layer and the second grinding layer, a second filtering layer is arranged between the second grinding layer and the third stirring layer, and a third filtering layer is arranged at the bottom of the third stirring layer; the filter screen diameter of the first filter layer is larger than that of the second filter layer, and the filter screen diameter of the second filter layer is larger than that of the third filter layer; the collecting device comprises a vibrator fixed to the outer wall of the grinding device, an air blower fixed to the left side of the inner wall of the bottom of the collecting device and a discharging basket embedded in the right side of the bottom of the collecting device. A plurality of grinding layers are arranged, layered filtering and progressive grinding are carried out, the fineness and uniformity of ground powder are improved, and more uniform powder is obtained.
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Description

Technical Field

[0001] The utility model relates to the technical field of cosmetic engineering, in particular to a grinding machine for manufacturing loose powder. Background Art

[0002] Loose powder is a kind of cosmetic, usually a fine powdery substance, used for setting makeup, absorbing oil and brightening skin color. It is one of the important steps in the makeup process, which can help fix makeup, reduce facial oiliness, and make the skin look more delicate and natural. In other words, for loose powder, the control of particle size directly affects the fineness and uniformity of the product. Therefore, in its production process, the use of a grinding machine is very important, and there are still some problems with the existing grinding machines. For example, the patent with application number CN217856487U discloses a grinding machine that is easy to unload. The grinding machine uses a grinding roller to grind flour, and a discharge port and an air duct are set to facilitate unloading. However, the grinding machine has only one layer of grinding mechanism, and the ground powder cannot be screened, which easily leads to different sizes of powder particles, affecting the texture and touch of the loose powder. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the limitations of existing grinding mills, the purpose of the utility model is to provide a grinding mill for manufacturing loose powder, which improves the fineness and uniformity of the ground powder by setting up multiple layers of grinding layers and stirring layers, and separates fine powder particles through layered filtering layers, thereby obtaining a finer and more natural powder and improving the quality and uniformity of the loose powder.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding machine for manufacturing loose powder, comprising a grinding device and a collecting device wrapped outside the grinding device, the grinding device is a rectangular device, which is divided into three layers, the top layer is a first grinding layer, the middle layer is a second grinding layer, and the bottom layer is a third stirring layer. A first filter layer is arranged between the first grinding layer and the second grinding layer, a second filter layer is arranged between the second grinding layer and the third stirring layer, and a third filter layer is arranged at the bottom of the third stirring layer; the filter screen diameter of the first filter layer is larger than the filter screen diameter of the second filter layer, and the filter screen diameter of the second filter layer is larger than the filter screen diameter of the third filter layer The collecting device includes a vibrator fixed on the outer wall of the grinding device, a blower fixed on the left side of the inner wall at the bottom of the collecting device, and a discharge basket embedded in the right side of the bottom of the collecting device. The grinding device is divided into three layers. With filter layers of different diameters, grinding operations and filtering of powder particles can be performed step by step to improve the fineness and uniformity of powder particles. At the same time, the vibration effect provided by the vibrator can make the powder in the grinding device evenly distributed, avoiding the problem of powder accumulation or uneven distribution during the grinding process. The blower helps to provide more convenient collection and processing. The discharge basket can be easily and portablely disassembled and installed, making the collection and processing of powder more convenient.

[0007] Preferably, a feed port is provided on the top left side of the grinding device, and a motor is provided on the top right side of the grinding device. The feed port is used to put the material, and the motor is used to provide the power required by the grinding device. The division of labor and cooperation help to improve the convenience of operation, making the entire loose powder manufacturing grinding machine easier to operate and maintain.

[0008] Preferably, a central shaft is installed for rotation inside the grinding device, the top end of the central shaft extends outside the grinding device and is connected to the motor transmission, the other end of the central shaft passes through the first grinding layer and the second grinding layer and extends into the third stirring layer. The transmission connection of the central shaft driven by the motor can directly transmit power to the entire grinding device, so that each layer can perform reasonable grinding operations and achieve more efficient transmission, which can improve the efficiency of grinding and ensure that the raw materials can be fully ground and mixed; at the same time, the design of the central shaft makes the entire grinding device a relatively independent, integrated structure, which helps to maintain the relative position and movement relationship between the layers, improves the stability of the entire grinding device, and helps ensure the uniformity and effectiveness of grinding and mixing.

[0009] Preferably, a plurality of first grinding rollers are arranged in a circular array around the central axis in the first grinding layer, a fixing frame 1 is fixedly installed on the top of the plurality of first grinding rollers, and the other end of the fixing frame 1 is fixedly connected to the outer wall of the central axis. The grinding rollers arranged in the circular array can help ensure that the raw materials are evenly processed during the grinding and mixing process, thereby improving the uniformity of grinding and mixing. Moreover, since multiple grinding rollers work at the same time, the grinding surface area is relatively increased, thereby improving the efficiency of grinding and mixing, which can speed up the powder making process and improve production efficiency.

[0010] Preferably, a plurality of second grinding rollers are arranged in a ring array around the central axis in the second grinding layer, a second fixing frame is fixedly installed on the top of the plurality of second grinding rollers, and the other end of the second fixing frame is fixedly connected to the outer wall of the central axis. The second grinding rollers cooperate with the operation of the first grinding rollers to help grind and mix the raw materials more evenly, improve the uniformity of powder making, and improve the fineness and uniformity of loose powder.

[0011] In addition, the fixed frame can help the grinding roller maintain a stable position relative to the central axis, improve the stability of the entire grinding system, and facilitate installation and maintenance, thereby improving production efficiency.

[0012] Preferably, a stirring rod is fixedly installed at the bottom end of the central axis, and the stirring rod is horizontally arranged inside the third stirring layer. The arrangement of the stirring rod can help to effectively stir the powder, so that the powder can be mixed more evenly, prevent powder agglomeration, improve the uniformity of the powder, ensure the fineness and quality of the powder, and during the grinding process, the stirring of the stirring rod can prevent some powders from adhering and internal accumulation, help maintain the normal operation of the equipment, and improve production efficiency.

[0013] Preferably, first guide plates are symmetrically arranged on both sides of the bottom of the first filter layer. The first guide plates are arranged inward and obliquely downward on both sides, and the end close to the central axis is the lower end, which keeps a distance from the central axis. The guide plates arranged obliquely downward help guide the powder to pass through a smooth guide channel at the bottom of the filter layer to ensure that the powder flows evenly and completely to the next link after filtration, ensuring more thorough filtration, ensuring the utilization rate of the powder and improving the filtration effect.

[0014] Preferably, second guide plates are symmetrically arranged on both sides of the bottom of the second filter layer. The second guide plates are arranged inward and obliquely downward on both sides, and the end close to the central axis is the lower end, which keeps a distance from the central axis. The setting of the guide plates can help reduce the dispersion of dust, ensure the utilization rate of the fraction and maintain a clean working environment; at the same time, guiding the powder filtration by the guide plates can effectively prevent powder accumulation, reduce the cleaning frequency, and improve the stability and durability of the equipment.

[0015] Preferably, a discharge pipe is provided between the blower and the discharge basket, and the discharge pipe is horizontally arranged at the bottom of the third filter layer. The cooperation between the blower and the discharge pipe helps to quickly collect the filtered powder into the discharge basket to avoid powder accumulation in the pipe. By collecting the powder into the discharge basket in a timely and uniform manner, the dust dispersion and cleaning work can be effectively reduced, which helps to obtain uniform and fine powder in a timely manner.

[0016] Preferably, the vibrator is symmetrically arranged on the left and right. The symmetrical arrangement of the vibrator can help balance the distribution of vibration, prevent uneven vibration from causing the equipment to tilt, and help improve the stability of the equipment; and the symmetrical distribution can ensure that the vibration is evenly transmitted throughout the equipment, prevent powder adhesion and accumulation, and ensure the effectiveness and uniformity of powder processing.

[0017] (III) Beneficial effects

[0018] The utility model aims to provide a grinding machine for bulk powder manufacturing, which provides multiple grinding layers and stirring layers, cooperates with filter screens of different diameters, performs grinding operations and filters powder particles step by step, ensures the fineness and uniformity of powder particles, and obtains finer and more uniform powder. At the same time, a vibrator provides vibration to avoid the problems of powder accumulation and uneven distribution, further helps grinding, and obtains more uniform and fine powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is an overall cross-sectional view of the utility model.

[0021] Figure 3 It is a top view of the first grinding layer in the utility model.

[0022] Figure 4 It is a top view of the second grinding layer in the utility model.

[0023] Figure 5 It is a schematic diagram of the third stirring layer in the present invention.

[0024] In the figure: 1-grinding device 2-collecting device 3-first grinding layer 4-second grinding layer 5-third stirring layer 6-first filtering layer 7-second filtering layer 8-third filtering layer 9-vibrator 10-blower 11-feeding port 12-motor 13-central axis 21-discharging basket 22-discharging pipe 31-first grinding roller 32-fixed frame 1 41-second grinding roller 42-fixed frame 2 43-first guide plate 51-stirring rod 53-second guide plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figures 1 to 5 The first specific embodiment of the utility model provides a grinding mill for manufacturing loose powder. The grinding mill includes a grinding device 1 and a collecting device 2 wrapped outside the grinding device 1. The grinding device 1 is a rectangular device, which is divided into three layers. The top layer is the first grinding layer 3, the middle layer is the second grinding layer 4, and the bottom layer is the third stirring layer 5. A first filter layer 6 is arranged between the first grinding layer 3 and the second grinding layer 4, a second filter layer 7 is arranged between the second grinding layer 4 and the third stirring layer 5, and a third filter layer 8 is arranged at the bottom of the third stirring layer 5. The filter diameter of the first filter layer 6 is larger than the filter diameter of the second filter layer 7, and the filter diameter of the second filter layer 7 is larger than the filter diameter of the third filter layer 8; the collecting device 2 includes a vibrator 9 fixed on the outer wall of the grinding device 1, and a vibrator 9 fixed on the left inner wall of the bottom of the collecting device 2. The blower 10 on the side and the discharge basket 21 embedded in the bottom right side of the collecting device 2, the first grinding layer 3 first performs primary grinding and mixing on the raw materials, the processed powder is primarily filtered through the first filter layer 6, enters the second grinding layer 4, and is secondary ground and mixed in the second grinding layer 4, and then is secondary filtered through the second filter layer 7, and then enters the third stirring layer 5. After the third stirring layer 5 stirs and mixes the powder, the powder is filtered through the third filter layer 8 and finally enters the discharge basket 21. Through multi-layer grinding and stirring, as well as step-by-step filtration, the powder can be more fully ground and mixed, providing a more uniform grinding quality, thereby obtaining a finer and more uniform powder, thereby improving the fineness and uniformity of the powder.

[0027] Furthermore, the diameter of the filter layer filter mesh is gradually reduced, so that particles of different sizes can be filtered in the corresponding filter layer, thereby ensuring that the final particles are more delicate and uniform, and further improving the purity and consistency of the powder.

[0028] A feed port 11 is provided on the left side of the top of the grinding device 1, and a motor 12 is provided on the right side of the top of the grinding device 1. The feed port on the top is convenient for pouring the raw materials into the grinding device. The raw materials are added from the top to ensure that the raw materials first enter the first grinding layer for grinding, and then the operation is performed step by step to ensure the stability and accuracy of the operation and the consistency of the obtained powder.

[0029] A central shaft 13 is installed for rotation inside the grinding device 1, and the top end of the central shaft 13 extends to the outside of the grinding device 1 and is connected to the motor 12 for transmission, and the other end of the central shaft 13 passes through the first grinding layer 3 and the second grinding layer 4 and extends into the third stirring layer 5. The power of the motor 12 is transmitted to the central shaft 13, and the central shaft 13 rotates accordingly in the first grinding layer 3, the second grinding layer 4 and the third stirring layer 5. The power is evenly transmitted to each structural layer, providing each structural layer with the power required for its operation, ensuring that each part can work in coordination and improving the working efficiency of the entire grinding device; at the same time, the through-design of the central shaft 13 can help improve the stability of the structure and reduce the shaking of the equipment.

[0030] A plurality of first grinding rollers 31 are arranged in a circular array around the central axis 13 in the first grinding layer 3, and a fixing frame 32 is fixedly installed on the top of the plurality of first grinding rollers 31, and the other end of the fixing frame 32 is fixedly connected to the outer wall of the central axis 13. After the raw materials enter the first grinding layer 3, the first grinding rollers 31 will rotate around the central axis 13 driven by the central axis 13, so as to perform preliminary grinding and mixing on the raw materials. The second grinding rollers 41 arranged in a circular array can ensure that the grinding force on the raw materials is uniform and consistent, which helps to improve the uniformity and consistency of grinding. At the same time, the setting of multiple grinding rollers increases the grinding area, effectively improving the grinding and mixing efficiency of the equipment.

[0031] A plurality of second grinding rollers 41 are arranged in a circular array around the central axis 13 in the second grinding layer 4, and a fixing frame 42 is fixedly installed on the top of the plurality of second grinding rollers 41, and the other end of the fixing frame 42 is fixedly connected to the outer wall of the central axis 13. After the raw materials are initially ground and mixed by the first grinding layer 3, they are filtered and guided by the first filter layer 6 and the first guide plate 43. Powders with particle sizes smaller than the filter diameter of the first filter layer 6 will enter the second grinding layer 4, and more fine and uniform powders can be further obtained through this filtering and guiding effect.

[0032] Furthermore, the powder entering the second grinding layer 4 is further ground and mixed under the grinding and mixing action of the second grinding roller 41 to obtain a finer and more uniform powder, thereby improving the fineness and uniformity of the powder.

[0033] A stirring rod 51 is fixedly installed at the bottom end of the central axis 13, and the stirring rod 51 is horizontally arranged inside the third stirring layer 5. The powder ground and mixed in the second grinding layer 4 will be filtered and guided by the second filter layer 7 and the second guide plate 53. The powder with particles smaller than the filter diameter of the second filter layer 7 will be filtered and guided into the third stirring layer 5. After this filtering and guiding action, the powder entering the third stirring layer 5 is finer and more uniform than the powder in the second grinding layer 4. Subsequently, driven by the central axis 13, the stirring rod 51 will stir and mix the filtered powder to further obtain a more uniform and fine powder.

[0034] Furthermore, the stirring rod 51 uniformly stirs and mixes the powder, which can prevent the powder from adhering and avoid internal accumulation, thereby improving the utilization rate of the powder and ensuring the normal operation of the equipment.

[0035] The first guide plates 43 are symmetrically arranged on both sides of the bottom of the first filter layer 6. The first guide plates 43 are arranged inward and obliquely downward on both sides. The end close to the central axis 13 is the lower end, and a distance is maintained from the central axis 13. The guide plates are used to guide the powder, that is, the powder with a particle size smaller than the filter screen diameter of the first filter layer 6 will fall onto the first guide plate 43 after being filtered by the first filter layer 6. The first guide plate 43 is arranged obliquely downward to guide the powder to fall downward into the second grinding layer 4. Guiding the powder can ensure that the filtered powder can completely enter the second grinding layer 4 and proceed to the next step of operation, thereby improving the utilization rate of the powder, avoiding powder accumulation, reducing the cleaning frequency, and helping to obtain more delicate and uniform powder while improving the stability and durability of the equipment.

[0036] The second guide plates 53 are symmetrically arranged on both sides of the bottom of the second filter layer 7. The second guide plates 53 are arranged inward and downward on both sides, and the end close to the central axis 13 is the lower end. The powder is kept at a distance from the central axis 13. The powder that undergoes secondary grinding and mixing is reasonably guided by the second guide plates 53 and enters the third stirring layer 5 more effectively and comprehensively, ensuring the utilization rate of the powder while helping to improve the fineness and uniformity of the powder.

[0037] A discharge pipe 22 is arranged between the blower 10 and the discharge basket 21. The discharge pipe 22 is arranged horizontally at the bottom of the third filter layer 8. Finally, after being stirred and mixed by the stirring rod 51 and filtered by the third filter layer 8, the finer and more uniform powder will enter the discharge pipe 22. Then, the blower 10 is turned on, and the blower 10 will blow the powder in the discharge pipe 22 into the discharge basket 21 to obtain fine and uniform powder. The cooperation between the blower 10 and the discharge pipe 22 helps to quickly collect the filtered powder into the discharge basket, avoids the accumulation of powder in the pipe, effectively reduces the dispersion of dust and reduces the cleaning work.

[0038] The vibrator 9 is symmetrically arranged on the left and right. While the grinding device 1 is performing grinding and mixing operations, the motor 12 will drive the vibrator 9 fixed on both sides of the grinding device 1 to vibrate, helping to reduce the adhesion of powder to the inner wall of the grinding device 1, prevent powder residue, and improve the utilization rate of the powder. At the same time, it provides uniform vibration to ensure that the powder is completely and evenly ground and mixed, thereby ensuring the uniformity and effectiveness of powder processing.

[0039] Working principle: When in use, the raw material is poured into the grinding device 1 through the feed port 11, and the raw material first enters the first grinding layer 3, and then the power of the motor 12 is turned on to put the motor 12 into working state. The rotation of the motor 2 will drive the central axis 13 to rotate, and the rotation of the central axis 13 will correspondingly drive the fixed frame 1 to rotate, and the fixed frame 1 will then drive the first grinding roller 31 to rotate around the central axis 13. The rotation of the first grinding roller 31 will grind and mix the raw material in the first grinding layer 3, and the ground and mixed raw material will be filtered through the first filter layer 6. The particles with a size smaller than the filter screen diameter of the first filter layer 6 will fall onto the first guide plate 43, and enter the second grinding layer 4 through the guidance of the first guide plate 43. The fixed frame 2 42 in the second grinding layer 4 is on the central axis 13 The second grinding roller 41 is driven to rotate, thereby driving the second grinding roller 41 to rotate, and further grinding and mixing the powder entering the second grinding layer 4. The powder after secondary grinding and mixing will be filtered through the second filter layer 7, and the particles smaller than the filter screen diameter of the second filter layer 7 will fall onto the second guide plate 53 and be guided to the third stirring layer 5. The stirring rod 51 connected to the bottom of the central axis 13 rotates in the third stirring layer 5 under the drive of the central axis 13, and stirs and mixes the powder finally filtered into the third stirring layer 5. Subsequently, the stirred and mixed powder is filtered through the third filter layer 8 into the discharge pipe 22, and the blower 10 is turned on. The blower 10 blows the powder in the discharge pipe 22 into the discharge basket 21, and the discharge basket 21 is taken out to obtain the powder;

[0040] During the grinding and mixing process of the grinding device 1, the motor 12 drives the vibrators 9 on both sides of the grinding device 1 to vibrate. The vibration of the vibrators 9 helps the powder adhering to the inner wall of the grinding device to fall off, and uniform and effective grinding and mixing are performed;

[0041] The powder obtained by layered grinding and step-by-step filtering of the device can ensure its fineness and uniformity.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding machine for producing loose powder, characterized in that: The invention comprises a grinding device (1) and a collecting device (2) wrapped outside the grinding device (1); the grinding device (1) is a rectangular device, which is divided into three layers, the top layer is a first grinding layer (3), the middle layer is a second grinding layer (4), and the bottom layer is a third stirring layer (5); a first filter layer (6) is arranged between the first grinding layer (3) and the second grinding layer (4), a second filter layer (7) is arranged between the second grinding layer (4) and the third stirring layer (5), and the third stirring layer (5) is provided with a plurality of filter layers (6) and a plurality of filter layers (7) respectively. (5) A third filter layer (8) is arranged at the bottom, the filter screen diameter of the first filter layer (6) is larger than the filter screen diameter of the second filter layer (7), and the filter screen diameter of the second filter layer (7) is larger than the filter screen diameter of the third filter layer (8); the collecting device (2) comprises a vibrator (9) fixed to the outer wall of the grinding device (1), a blower (10) fixed to the left side of the inner wall at the bottom of the collecting device (2), and a discharge basket (21) embedded in the right side of the bottom of the collecting device (2).

2. A grinding machine for producing loose powder according to claim 1, characterized in that: A feed port (11) is arranged on the left side of the top of the grinding device (1), and a motor (12) is arranged on the right side of the top of the grinding device (1).

3. A grinding machine for producing loose powder according to claim 1, characterized in that: A central shaft (13) is rotatably mounted inside the grinding device (1), the top end of the central shaft (13) extending outside the grinding device (1) and being transmission-connected to a motor (12), the other end of the central shaft (13) passing through the first grinding layer (3) and the second grinding layer (4) and extending into the third stirring layer (5).

4. A grinding machine for producing loose powder according to claim 3, characterized in that: A plurality of first grinding rollers (31) are arranged in a ring array around the central axis (13) in the first grinding layer (3), and a fixing frame (32) is fixedly installed on the top of the plurality of first grinding rollers (31), and the other end of the fixing frame (32) is fixedly connected to the outer wall of the central axis (13).

5. A grinding machine for producing loose powder according to claim 3, characterized in that: A plurality of second grinding rollers (41) are arranged in a ring array around the central axis (13) in the second grinding layer (4), and a second fixing frame (42) is fixedly installed on the top of the plurality of second grinding rollers (41), and the other end of the second fixing frame (42) is fixedly connected to the outer wall of the central axis (13).

6. A grinding machine for producing loose powder according to claim 5, characterized in that: A stirring rod (51) is fixedly mounted on the bottom end of the central shaft (13), and the stirring rod (51) is transversely arranged inside the third stirring layer (5).

7. A grinding machine for producing loose powder according to claim 1, characterized in that: First guide plates (43) are symmetrically arranged on both sides of the bottom of the first filter layer (6). The first guide plates (43) are arranged obliquely inward and downward on both sides, and the end close to the central axis (13) is the lower end, which maintains a distance from the central axis (13).

8. A grinding machine for producing loose powder according to claim 1, characterized in that: Second guide plates (53) are symmetrically arranged on both sides of the bottom of the second filter layer (7). The second guide plates (53) are arranged obliquely inward and downward on both sides, and the end close to the central axis (13) is the lower end, which is spaced apart from the central axis (13).

9. A grinding machine for producing loose powder according to claim 1, characterized in that: A discharge pipe (22) is provided between the blower (10) and the discharge basket (21), and the discharge pipe (22) is transversely arranged at the bottom of the third filter layer (8).

10. A grinding machine for producing loose powder according to claim 1, characterized in that: The vibrator (9) is arranged symmetrically.

Citation Information

Patent Citations

  • Flour mill convenient for discharging

    CN217856487U