Grinding device of flour mill

Abstract

The utility model discloses a grinding device of a flour mill, which belongs to the technical field of grinding equipment and comprises a rack, a grinding shell and a driving motor are fixedly arranged on the rack, a feed port is arranged at the top of the grinding shell, a discharge port is arranged at the bottom of the grinding shell, and a driving grinding disc and a driven grinding disc are arranged in the grinding shell. The driving grinding disc is in transmission connection with the driving motor through a synchronous belt, the driven grinding disc is rotationally arranged on the inner wall of the grinding shell, and the grinding shell is further provided with an adjusting mechanism used for adjusting the distance between the driven grinding disc and the driving grinding disc. According to the grinding device of the pulverizer, the distance between the driving grinding disc and the driven grinding disc is adjusted through the adjusting mechanism, so that the effect of adaptively grinding different materials is achieved, and the pulverizer is more practical.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically a grinding device for a pulverizer. Background Technology

[0002] In the production process of powder coatings, materials usually need to be finely ground by a grinding mill to achieve specific particle size requirements. Different materials have different requirements for grinding particle size due to differences in their chemical composition and physical properties.

[0003] Existing grinding mills generally lack a dedicated adjustment mechanism in their design, making it impossible to precisely adjust the grinding disc according to different material requirements. This limits the flexibility of the grinding mill in adapting to different material particle sizes. This design flaw not only affects the production quality of powder coatings but also causes inconvenience to users when using the grinding mill.

[0004] To address the above problems, a technical solution for a grinding device in a pulverizer is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a grinding device for a pulverizer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grinding mill grinding device, including a frame, on which a grinding shell and a drive motor are fixedly mounted. The grinding shell has a feed inlet at the top and a discharge outlet at the bottom. An active grinding disc and a driven grinding disc are disposed inside the grinding shell. The active grinding disc is connected to the drive motor via a synchronous belt drive. The driven grinding disc is rotatably mounted on the inner wall of the grinding shell. The grinding shell is also provided with an adjustment mechanism for adjusting the distance between the driven grinding disc and the active grinding disc.

[0007] The present invention is further configured such that: the adjusting mechanism includes a screw, the screw passes through the top of the grinding housing and is threadedly connected to the grinding housing, the bottom of the screw is connected to the driven grinding disc through a bearing, and the top of the screw extends out of the grinding housing and is provided with an adjusting handle.

[0008] The present invention is further configured such that: both the active grinding disc and the driven grinding disc are provided with annular scrapers on their edges, and the annular scrapers are in contact with the inner wall of the grinding shell.

[0009] The present invention is further configured such that the cross-sections of the grinding teeth of both the active grinding disc and the driven grinding disc are trapezoidal.

[0010] The present invention is further configured such that: a pair of screens for screening ground materials are provided inside the grinding shell near the discharge port; a reflux channel is provided between the pair of screens in the grinding shell; the reflux channel is connected to a collection chamber for collecting materials that do not conform to the particle size; and a collection device is provided inside the collection chamber.

[0011] The present invention is further configured such that: the collecting device is a fan, and the fan is electrically connected to the drive motor.

[0012] The present invention is further provided with a shock-absorbing rubber pad at the bottom of the frame.

[0013] In summary, this utility model has the following beneficial effects: by adjusting the distance between the active grinding disc and the driven grinding disc through the adjustment mechanism, it can achieve the effect of adaptive grinding of different materials, making the grinding machine more practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the active grinding disc and the driven grinding disc of this utility model.

[0017] In the diagram: 1. Frame; 101. Shock-absorbing rubber pad; 2. Grinding shell; 201. Feed inlet; 202. Discharge outlet; 3. Drive motor; 4. Active grinding disc; 5. Driven grinding disc; 6. Screw; 601. Bearing; 602. Adjusting handle; 7. Annular scraper; 8. Screen; 9. Return channel; 10. Collection chamber; 11. Fan; 12. Synchronous belt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] A grinding device for a pulverizer, such as Figure 1 , Figure 2as well as Figure 3 As shown, the device includes a frame 1, on which a grinding shell 2 and a drive motor 3 are fixedly mounted. The grinding shell 2 has a feed inlet 201 at the top and a discharge outlet 202 at the bottom. Inside the grinding shell 2, there is an active grinding disc 4 and a driven grinding disc 5. The active grinding disc 4 is connected to the drive motor 3 via a synchronous belt 12. The driven grinding disc 5 is rotatably mounted on the inner wall of the grinding shell 2. The grinding shell 2 is also equipped with an adjustment mechanism for adjusting the distance between the driven grinding disc 5 and the active grinding disc 4. The grinding teeth of both the active grinding disc 4 and the driven grinding disc 5 have trapezoidal cross-sections. The trapezoidal cross-sections of the grinding teeth can effectively crush and mix the material during the grinding process, ensuring the grinding particle size.

[0020] Specifically, the adjustment mechanism includes a screw 6, which passes through the top of the grinding housing 2 and is threadedly connected to the grinding housing 2. The bottom of the screw 6 is connected to the driven grinding disc 5 through a bearing 601. The top of the screw 6 extends out of the grinding housing 2 and is provided with an adjustment handle 602.

[0021] The worker starts the drive motor 3 to control the rotation of the active grinding disc 4, so that the material is ground into particles under the relative action of the active grinding disc 4 and the driven grinding disc 5. When faced with materials with different particle size requirements, the worker only needs to turn the adjustment handle 602 to change the gap between the driven grinding disc 5 and the active grinding disc 4, thereby changing the particle size of the ground material.

[0022] like Figure 1 , Figure 2 as well as Figure 3 As shown, both the active grinding disc 4 and the driven grinding disc 5 are provided with annular scrapers 7 on their edges. The annular scrapers 7 are in contact with the inner wall of the grinding shell 2. Through the annular scrapers 7, the material adhering to the inner wall of the grinding shell 2 is scraped off during the grinding process of the active grinding disc 4 and the driven grinding disc 5, so as to avoid the accumulation of material in the grinding shell 2 during the grinding process.

[0023] like Figure 1 , Figure 2 as well as Figure 3 As shown, a pair of screens 8 are provided inside the grinding shell 2 near the discharge port 202 for screening the ground material. A return channel 9 is provided between the pair of screens 8 in the grinding shell 2. The return channel 9 is connected to a collection chamber 10 for collecting materials that do not meet the particle size requirements. A collection device is provided inside the collection chamber 10. Specifically, the collection device is a fan 11, which is electrically connected to the drive motor 3.

[0024] Screen 8 is used to screen the ground material. During use, the pores of screen 8 closer to the discharge port 202 are more in line with the required material grinding particle size, ensuring that the output material meets the particle size requirements. The material that does not meet the requirements is recycled through the return channel 9, the collection chamber 10 and the fan 11, making it convenient for the next grinding.

[0025] like Figure 1 , Figure 2 as well as Figure 3 As shown, the bottom of the frame 1 is equipped with a shock-absorbing rubber pad 101 to reduce the vibration and noise generated by the grinding device during operation, making the grinding device more practical.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flour mill grinding device, comprising a frame (1), a grinding shell (2) and a driving motor (3) fixedly arranged on the frame (1), characterized in that: The grinding shell (2) is provided with a feed inlet (201) at the top and a discharge outlet (202) at the bottom. The grinding shell (2) is provided with an active grinding disc (4) and a driven grinding disc (5). The active grinding disc (4) is connected to the drive motor (3) via a synchronous belt (12). The driven grinding disc (5) is rotatably disposed on the inner wall of the grinding shell (2). The grinding shell (2) is also provided with an adjustment mechanism for adjusting the distance between the driven grinding disc (5) and the active grinding disc (4).

2. A mill grinding device according to claim 1, characterized in that: The adjustment mechanism includes a screw (6) that passes through the top of the grinding housing (2) and is threadedly connected to the grinding housing (2). The bottom of the screw (6) is connected to the driven grinding disc (5) via a bearing (601). The top of the screw (6) extends out of the grinding housing (2) and is provided with an adjustment handle (602).

3. A mill grinding device according to claim 1, characterized in that: Both the active grinding disc (4) and the driven grinding disc (5) are provided with annular scrapers (7) on their edges, and the annular scrapers (7) are in contact with the inner wall of the grinding shell (2).

4. A mill grinding device according to claim 1, characterized in that: The cross-sections of the grinding teeth of both the active grinding disc (4) and the driven grinding disc (5) are trapezoidal.

5. A mill grinding device according to claim 1, characterized in that: The grinding shell (2) is provided with a pair of screens (8) for screening the ground material near the discharge port (202). The grinding shell (2) is provided with a reflux channel (9) between the pair of screens (8). The reflux channel (9) is connected to a collection chamber (10) for collecting materials that do not meet the particle size requirements. A collection device is provided inside the collection chamber (10).

6. A mill grinding device according to claim 5, characterised in that: The collecting device is a fan (11), which is electrically connected to the drive motor (3).

7. A mill grinding device according to claim 1, characterized in that: The bottom of the frame (1) is provided with a shock-absorbing rubber pad (101).

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