Nanoscale sand mill for producing water-based finish paint

Abstract

The utility model relates to a nanoscale sand mill for producing water-based finish paint, which belongs to the field of sand mills and comprises a base, a motor and a grinding cylinder, a cooling water tank and a frame are sequentially fixed at one end of the base, two bearings are transversely and fixedly mounted in the middle of the frame, a shaft lever is mounted on the two bearings, and the shaft lever is fixedly mounted on the motor. The shaft rod end in the rack is in transmission connection with a motor fixed on the base, grinding rotors are uniformly distributed on the periphery of the shaft rod outside the rack, a grinding cylinder is sleeved on the periphery of the shaft rod outside the rack, the inner end of the grinding cylinder is fixedly connected with the rack in a sealing manner, the outer end of the grinding cylinder is provided with a discharge port, and a water cooling sleeve is arranged on the periphery of the grinding cylinder. According to the nanoscale sand mill for producing the water-based finishing paint, the water-cooling circulating pipes are mounted on the grinding cylinder and the bearing outer sleeve, so that heat generated at the grinding cylinder and the bearing can be quickly taken away, the cooling effect is improved, the situation that the temperature of the grinding cylinder is too high, and the weight of materials is affected is prevented, and the service life of the materials is prolonged. And meanwhile, the service life of the device is also prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand mills and relates to a nano-level sand mill for the production of water-based topcoats. Background Art

[0002] The main motor of the nano-level sand mill is driven by a V-belt and a wedge pulley with adjustable center of gravity to drive the turbine cylinder on the main shaft to rotate at a high speed, thereby driving the zirconia beads in the grinding chamber to move at a high speed. As a result, the grinding medium generates great impact force, impact force, friction force and shear force, enabling the material to be fully ground and dispersed. When the existing nano-level sand mill grinds the material in the grinding chamber with the grinding rotor, a large amount of heat will be generated. However, the existing grinding cylinder generally has no cooling structure. After running for a long time, a large amount of heat will be generated in the grinding cylinder and bearings. These heats can only be dissipated by the grinding cylinder and bearings themselves, and the heat dissipation effect is poor, resulting in too high a temperature of the grinding cylinder after being used for a period of time, which affects the quality of the ground material. Content of the Utility Model

[0003] The utility model aims at the deficiencies in the background art and provides a nano-level sand mill for the production of water-based topcoats.

[0004] A nano-level sand mill for the production of water-based topcoats according to the utility model comprises a base, a motor and a grinding cylinder. One end of the base is successively fixed with a cooling water tank and a frame. Two bearings are horizontally and fixedly installed in the middle of the frame. A shaft rod is installed on the two bearings. The end of the shaft rod in the frame is in transmission connection with the motor fixed on the base. The outer circumference of the shaft rod outside the frame is evenly distributed with grinding rotors and is sleeved with a grinding cylinder. The inner end of the grinding cylinder is fixedly connected with the frame in a sealed manner, and the outer end is provided with a discharge port. The circumferential part of the grinding cylinder is provided with a water-cooled sleeve, whose water inlet pipe is communicated with the cooling water tank through a pump body, and the water outlet pipe is communicated with the cooling water tank. The grinding cylinder is provided with a feed pipe and contains zirconia beads.

[0005] As a further improvement of the utility model, water-cooled pipes are arranged on the outer sleeves of the two bearings and are connected in series by pipelines. The inlet is communicated with the outlet of the pump body, and the outlet is communicated with the cooling water tank.

[0006] As a further improvement of the utility model, rollers are installed at the bottom of the grinding cylinder and are slidably connected with the extension track on the base.

[0007] As a further improvement of the utility model, a screen is installed at the grinding cylinder at the inner end of the discharge port.

[0008] As a further improvement of the utility model, a control part is installed at the top of the frame, an air inlet pipe is installed at the top of the grinding cylinder, and a pressure gauge and a solenoid valve are installed on the air inlet pipe.

[0009] A nanoscale sand mill for the production of waterborne topcoat of the utility model is equipped with water-cooling circulation pipes on both the grinding cylinder and the bearing outer sleeve, which can quickly remove the heat generated at the grinding cylinder and the bearing, thus improving the cooling effect, preventing the temperature of the grinding cylinder body from being too high, affecting the weight of the material, and at the same time extending the service life of the entire device. The main body of the grinding cylinder slides on the frame, facilitating the disassembly and assembly of the grinding cylinder, as well as operations such as maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic longitudinal sectional structure view of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The following will combine with the attached Figure 1 A nanoscale sand mill for the production of waterborne topcoat of the utility model will be further clearly and completely described.

[0012] Embodiment 1

[0013] A nanoscale sand mill for the production of waterborne topcoat of the utility model includes a base 1, a motor 2 and a grinding cylinder 3. One end of the base 1 is successively fixed with a cooling water tank 4 and a frame 5. Two bearings 6 are horizontally and fixedly installed in the middle of the frame 5. A shaft rod 7 is installed on the two bearings 6. The end of the shaft rod 7 inside the frame 5 is in transmission connection with the motor 2 fixed on the base 1. Grinding rotors 8 are evenly distributed on the outer circumference of the shaft rod 7 outside the frame 5, and a grinding cylinder 3 is sleeved. The inner end of the grinding cylinder 3 is fixedly and sealedly connected to the frame 5, and the outer end is provided with a discharge port 9. A water-cooling sleeve 10 is arranged around the circumference of the grinding cylinder 3. Its water inlet pipe 11 is connected to the cooling water tank 4 through a pump body 12, and the water outlet pipe 15 is connected to the cooling water tank 4. The grinding cylinder 3 is provided with a feed pipe 16 and contains zirconia beads 17.

[0014] Embodiment 2

[0015] A nano - level sand mill for the production of water - based topcoats of the present utility model includes a base 1, a motor 2 and a grinding cylinder 3. One end of the base 1 is successively fixed with a cooling water tank 4 and a frame 5. Two bearings 6 are horizontally and fixedly installed in the middle of the frame 5. A shaft rod 7 is installed on the two bearings 6. The end of the shaft rod 7 inside the frame 5 is in transmission connection with the motor 2 fixed on the base 1. Grinding rotors 8 are evenly distributed on the outer circumference of the shaft rod 7 outside the frame 5, and a grinding cylinder 3 is sleeved. The inner end of the grinding cylinder 3 is fixedly and hermetically connected to the frame 5, and an outlet 9 is provided at the outer end. A water - cooling sleeve 10 is provided around the circumference of the grinding cylinder 3. Its water inlet pipe 11 is connected to the cooling water tank 4 through a pump body 12, and the water outlet pipe 15 is connected to the cooling water tank 4. The grinding cylinder 3 is provided with a feed pipe 16 and contains zirconia beads 17. Water - cooling pipes 13 are provided on the outer sleeves of the two bearings 6 and are connected in series by pipelines. The inlet is connected to the outlet of the pump body 12, and the outlet is connected to the cooling water tank 4. Rollers 18 are installed at the bottom of the grinding cylinder 3 and are slidably connected to the extension track 19 on the base 1. A screen 20 is installed at the grinding cylinder 3 at the inner end of the outlet 9. A control part 21 is installed at the top of the frame 5, and an air inlet pipe 22 is installed at the top of the grinding cylinder 3. A pressure gauge 23 and a solenoid valve 24 are installed on the air inlet pipe 22.

[0016] A nano - level sand mill for the production of water - based topcoats of the present utility model adopts a special mechanical seal for high - precision sand mills, with high assembly accuracy requirements and long durability. The grinding cavity is completely sealed, reducing the mixing of air, preventing the generation of a large number of bubbles, and at the same time reducing the volatilization of solvents, greatly avoiding environmental pollution. At the same time, this model adopts a static screen - type tubular central discharge, and the grinding medium and the material to be ground are separated at the central part of the grinding cavity; due to the self - cleaning effect generated by the movement of the grinding beads on the surface of the device, the blockage of the grinding medium in the gaps can be reduced, greatly preventing the problem of material blockage. According to different fineness requirements of the material, grinding media with different particle sizes, namely zirconia beads 17, can be selected. This machine is suitable for various fluid materials with different viscosities.

[0017] As is known by common technical knowledge, the present utility model can be implemented by other embodiments without departing from its spiritual essence or essential features. Therefore, the above - disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present utility model or within the scope equivalent to the present utility model are encompassed by the present utility model.

Claims

1. A nano-scale sand mill for producing water-based topcoat, comprising a base (1), a motor (2) and a grinding cylinder (3), characterized in that A cooling water tank (4) and a frame (5) are fixed in sequence at one end of the base (1); two bearings (6) are fixedly installed transversely in the middle of the frame (5); shafts (7) are installed on the two bearings (6); the ends of the shafts (7) in the frame (5) are drivingly connected to a motor (2) fixed on the base (1); a grinding rotor (8) is evenly distributed on the outer periphery of the shafts (7) outside the frame (5) and is sleeved with a grinding cylinder (3); the inner end of the grinding cylinder (3) is sealed and fixedly connected to the frame (5); a discharge port (9) is provided at the outer end; a water cooling sleeve (10) is provided around the grinding cylinder (3); a water inlet pipe (11) is connected to the cooling water tank (4) through a pump body (12); a water outlet pipe (15) is connected to the cooling water tank (4); the grinding cylinder (3) is provided with a feed pipe (16) and is internally provided with zirconium oxide beads (17).

2. A nano-scale sand mill for producing water-based topcoat as claimed in claim 1, characterized in that Water cooling pipes (13) are provided on the outer sleeves of the two bearings (6) and are connected in series with pipelines, the inlet of which is connected to the outlet of the pump body (12), and the outlet of which is connected to the cooling water tank (4).

3. A nano-scale sand mill for producing water-based topcoat as claimed in claim 1 or 2, characterized in that A roller (18) is mounted at the bottom of the grinding cylinder (3) and is slidably connected to an extension track (19) on the base (1).

4. A nano-scale sand mill for producing water-based topcoat as claimed in claim 1 or 2, characterized in that A screen (20) is installed at the grinding cylinder (3) at the inner end of the discharge port (9).

5. A nano-scale sand mill for producing water-based topcoat as claimed in claim 1 or 2, characterized in that A control unit (21) is installed on the top of the frame (5), an air intake pipe (22) is installed on the top of the grinding cylinder (3), and a pressure gauge (23) and a solenoid valve (24) are installed on the air intake pipe (22).

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