A sand grinding device for stone-like paint production

By introducing a multi-functional circulation mechanism and flushing valve into the sand milling device for producing imitation stone paint, the problems of space occupation and splashing of the circulation pipe were solved, the convenience of material addition and cleaning was improved, and the hygiene of the on-site environment was ensured.

CN224541883UActive Publication Date: 2026-07-24福建石全石美新型材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
福建石全石美新型材料有限公司
Filing Date
2025-08-28
Publication Date
2026-07-24

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    Figure CN224541883U_ABST
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Abstract

The utility model discloses a sand grinding device for stone-like paint production, including motor, colloidal mill main part, feed hopper and multifunctional circulating mechanism, the utility model discloses a multifunctional circulating mechanism is set up in the side part of feed hopper, and the circulating pipe is accessed feed hopper from the side part through the circulating channel, does not occupy the space above feed hopper, and the adding work of material is more convenient, and will not cause material splashing because of height difference, guarantees the environmental health on the spot, installs the flush valve in the middle part on the surface of circulating pipe, when flushing work, first flush valve access external water pipe, then three -way valve is adjusted with the discharge pipe intercommunication, can open flush valve and release water, make the water flow enter circulating pipe then in proper order through circulating channel, feed hopper, colloidal mill main part, three -way valve and finally discharge from the discharge pipe, can quickly flush the equipment, provides the convenience for the logistics maintenance work.
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Description

Technical Field

[0001] This utility model relates to the technical field of sand milling devices, specifically a sand milling device for producing imitation stone paint. Background Technology

[0002] Stone-like paint is a water-based coating made from acrylic resin emulsion or fluorocarbon resin as a base, mixed with natural stone powder, quartz sand, and additives. During the production process, colloid mills are typically used for sand milling to pulverize solid raw materials such as colored sand and pigments into micron or nano-sized particles. This ensures a uniform and fine coating particle size, enhancing the realistic stone effect and texture of the stone-like paint. Existing patent application number: 202121564860.X A circulating colloid mill includes: a feed hopper, an adjusting ring, a circulation connector, a stator assembly, and a colloid mill body. The feed hopper has a channel in the middle for the drug to enter the colloid mill, and hollow inner cavities are provided on both sides of the channel. Anti-clogging components are provided in the inner cavities. The stator assembly is installed below the circulation connector. The colloid mill body is installed below the stator assembly, and a discharge hopper is provided on the colloid mill body.

[0003] The aforementioned patent describes the structural principle of existing colloid mills. Existing colloid mills are usually equipped with a circulation pipe, which enables repeated grinding of materials to ensure material fineness. However, in practical applications, the circulation pipe is usually connected to the feed hopper from above, occupying the space above the feed hopper and causing some inconvenience for material addition. Furthermore, the circulation pipe is prone to splashing when discharging, polluting the working environment. In addition, the circulation pipe lacks a cleaning function, requiring hand-held water hose rinsing during maintenance, which is not convenient. Therefore, we propose a sand milling device for the production of imitation stone paint to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sand milling device for the production of imitation stone paint, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sand milling device for producing imitation stone paint, comprising a motor, a colloid mill body, a feed hopper, and a multi-functional circulation mechanism. The colloid mill body is mounted on the top flange of the motor and is driven by the motor. A feed hopper is mounted on the top of the colloid mill body and is connected to the top inlet of the colloid mill body. A multi-functional circulation mechanism is provided on the side of the feed hopper. The multi-functional circulation mechanism includes a circulation channel, a baffle, a three-way valve, a discharge pipe, and a circulation pipe. A circulation channel is welded to the outer surface of the feed hopper, and the bottom outlet of the circulation channel is connected to the inside of the feed hopper. A baffle is installed on the inner side wall of the feed hopper, and the baffle is located directly above the bottom outlet of the circulation channel. The side outlet of the colloid mill body is connected to the three-way valve. The horizontal outlet of the three-way valve is connected to the discharge pipe, and the vertical outlet of the three-way valve is connected to the circulation pipe. The top elbow of the circulation pipe extends into the inside of the circulation channel.

[0006] Preferably, the circulation channel is inclined, and the inclination angle of the circulation channel is not less than 30°.

[0007] Preferably, the baffle and the feed hopper are connected by a hinge, and the rotatable angle of the baffle is not less than 120°.

[0008] Preferably, the connection length between the circulation pipe and the circulation channel is not less than 20mm.

[0009] Preferably, a flushing valve is installed in the middle of the surface of the circulation pipe, and a rubber plug is movably sleeved on the top surface of the circulation pipe, which can be filled and fixed with the top inlet of the circulation channel.

[0010] Preferably, a limiting ring is fixedly sleeved on the upper part of the surface of the circulation pipe, and the outer diameter of the limiting ring is larger than the inner diameter of the rubber plug sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a multi-functional circulation mechanism on the side of the feed hopper. By adjusting and connecting the three-way valve with the circulation pipe, the material discharged from the colloid mill body is added to the circulation channel through the circulation pipe and then flows back to the feed hopper from the circulation channel, thus achieving circulation processing. The circulation pipe is connected to the feed hopper from the side through the circulation channel, which does not occupy the space above the feed hopper. This makes the addition of materials more convenient and prevents material from splashing due to height differences, ensuring a clean working environment.

[0012] This invention features a flushing valve installed in the middle of the circulating pipe surface. When flushing, the flushing valve is first connected to an external water pipe, and then the three-way valve is adjusted and connected to the discharge pipe. This allows the flushing valve to be opened to release water, which then flows into the circulating pipe and sequentially through the circulating channel, the feed hopper, the colloid mill body, the three-way valve, and finally out of the discharge pipe. This enables rapid flushing of the equipment and provides convenience for logistics and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a front view structural diagram of the colloid mill body in this utility model; Figure 3 This is a front view cross-sectional structural diagram of the feed hopper in this utility model; Figure 4 This is a partial front view schematic diagram of the multifunctional circulation mechanism in this utility model; Figure 5 This is a schematic diagram of the docking structure of the circulation pipe and circulation channel in this utility model.

[0014] In the diagram: Motor-1, Colloid mill body-2, Feed hopper-3, Multifunctional circulation mechanism-4, Circulation channel-41, Baffle-42, Three-way valve-43, Discharge pipe-44, Circulation pipe-45, Flushing valve-46, Rubber plug sleeve-47, Limiting ring-48. Detailed Implementation

[0015] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0016] Please see Figure 1 This utility model provides a sand milling device for producing imitation stone paint, including a motor 1, a colloid mill body 2, a feed hopper 3, and a multi-functional circulation mechanism 4. The colloid mill body 2 is mounted on the top flange of the motor 1 and is driven by the motor 1. The feed hopper 3 is mounted on the top of the colloid mill body 2 and is connected to the top inlet of the colloid mill body 2. The multi-functional circulation mechanism 4 is provided on the side of the feed hopper 3.

[0017] Specifically, during use, the electric motor 1 drives the colloid mill body 2 to operate, and then the material is added from the feed hopper 3 into the colloid mill body 2 for sand grinding.

[0018] Please see Figure 2-4This utility model provides a sand milling device for producing imitation stone paint. The multi-functional circulation mechanism 4 includes a circulation channel 41, a baffle 42, a three-way valve 43, a discharge pipe 44, and a circulation pipe 45. The circulation channel 41 is welded to the outer side of the feed hopper 3. The bottom outlet of the circulation channel 41 is connected to the inside of the feed hopper 3. The baffle 42 is installed on the inner side wall of the feed hopper 3. The baffle 42 is located directly above the bottom outlet of the circulation channel 41. The baffle 42 can guide the material to bypass the bottom outlet of the circulation channel 41, preventing the material from rushing into the circulation channel 41 from the feed hopper 3 and causing poor discharge. The side outlet of the colloid mill body 2 is connected to the three-way valve 43. The horizontal outlet of the three-way valve 43 is connected to the discharge pipe 44. The vertical outlet of the three-way valve 43 is connected to the circulation pipe 45. The top elbow of the circulation pipe 45 extends into the inside of the circulation channel 41.

[0019] The circulation channel 41 is inclined, and the inclination angle of the circulation channel 41 is not less than 30°, so as to ensure that the material can be smoothly discharged into the feed hopper 3 through the circulation channel 41 without clogging. The connection length between the circulation pipe 45 and the circulation channel 41 is not less than 20mm to ensure the connection is airtight and prevent the material from leaking out from the joint.

[0020] The baffle 42 is connected to the feed hopper 3 by a hinge, and the baffle 42 can be flipped at an angle of not less than 120°. The baffle 42 can be flipped up to expose the bottom opening of the circulation channel 41, which facilitates the entry of cleaning tools and provides convenience for post-cleaning work.

[0021] Specifically, by setting a multi-functional circulation mechanism 4 on the side of the feed hopper 3, the three-way valve 43 is first connected to the circulation pipe 45. The material discharged from the colloid mill body 2 will be added to the circulation channel 41 through the circulation pipe 45, and then flow back to the feed hopper 3 from the circulation channel 41, thereby realizing the circulation process. The circulation pipe 45 is connected to the feed hopper 3 from the side through the circulation channel 41, which does not occupy the space above the feed hopper 3. The material addition is more convenient, and the material will not splash due to the height difference, thus ensuring the cleanliness of the site. By adjusting and connecting the three-way valve 43 with the discharge pipe 44, the material discharged from the colloid mill body 2 is discharged outward through the discharge pipe 44, so that the material completes the sand milling process.

[0022] Please see Figure 5 This utility model provides a sanding device for producing imitation stone paint. A flushing valve 46 is installed in the middle of the surface of the circulation pipe 45. A rubber plug 47 is movably sleeved on the top surface of the circulation pipe 45. The rubber plug 47 can be filled and fixed with the top inlet of the circulation channel 41 to improve the connection and sealing between the circulation pipe 45 and the circulation channel 41 and ensure the flushing pressure.

[0023] To further explain, a limiting ring 48 is fixedly sleeved on the upper part of the surface of the circulation pipe 45. The outer diameter of the limiting ring 48 is larger than the inner diameter of the rubber plug sleeve 47. The limiting ring 48 provides support and docking for the rubber plug sleeve 47, making it convenient to use at any time.

[0024] Specifically, by installing a flushing valve 46 in the middle of the surface of the circulation pipe 45, when performing flushing work, first connect the flushing valve 46 to the external water pipe, then adjust the three-way valve 43 to connect with the discharge pipe 44, and then open the flushing valve 46 to release water, allowing the water to flow into the circulation pipe 45 and then pass through the circulation channel 41, the feed hopper 3, the colloid mill body 2, the three-way valve 43 in sequence, and finally be discharged from the discharge pipe 44. This can quickly flush the equipment and provide convenience for logistics and maintenance work.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sand milling device for producing imitation stone paint, comprising an electric motor (1), a colloid mill body (2) and a feed hopper (3), wherein the colloid mill body (2) is mounted on the top flange of the electric motor (1), the colloid mill body (2) is driven to operate by the electric motor (1), and the feed hopper (3) is mounted on the top of the colloid mill body (2), the feed hopper (3) being connected to the top inlet of the colloid mill body (2); Its features are: It also includes a multi-functional circulation mechanism (4). The side of the feed hopper (3) is provided with a multi-functional circulation mechanism (4). The multi-functional circulation mechanism (4) includes a circulation channel (41), a baffle (42), a three-way valve (43), a discharge pipe (44), and a circulation pipe (45). The side of the outer surface of the feed hopper (3) is welded with a circulation channel (41). The bottom outlet of the circulation channel (41) is connected to the inside of the feed hopper (3). The inner side wall of the feed hopper (3) is equipped with a baffle (42). The baffle (42) is located directly above the bottom outlet of the circulation channel (41). The side outlet of the colloid mill body (2) is connected to the three-way valve (43). The horizontal outlet of the three-way valve (43) is connected to the discharge pipe (44). The vertical outlet of the three-way valve (43) is connected to the circulation pipe (45). The top elbow of the circulation pipe (45) extends into the inside of the circulation channel (41).

2. The sand milling device for producing imitation stone paint according to claim 1, characterized in that: The circulation channel (41) is inclined, and the inclination angle of the circulation channel (41) is not less than 30°.

3. The sand milling device for producing imitation stone paint according to claim 1, characterized in that: The baffle (42) and the feed hopper (3) are connected by a hinge, and the rotatable angle of the baffle (42) is not less than 120°.

4. The sand milling device for producing imitation stone paint according to claim 1, characterized in that: The connection length between the circulation pipe (45) and the circulation channel (41) is not less than 20 mm.

5. The sand milling device for producing imitation stone paint according to claim 1, characterized in that: A flushing valve (46) is connected to the middle of the surface of the circulation pipe (45), and a rubber plug (47) is movably sleeved on the top surface of the circulation pipe (45). The rubber plug (47) can be filled and fixed with the top inlet of the circulation channel (41).

6. The sand milling device for producing imitation stone paint according to claim 5, characterized in that: A limiting ring (48) is fixedly sleeved on the upper part of the surface of the circulation pipe (45), and the outer diameter of the limiting ring (48) is larger than the inner diameter of the rubber plug sleeve (47).