Crushing device for preparing hectorite nanoparticles for metallic paint

Abstract

The utility model relates to the technical field of hectorite nano-particle preparation, in particular to a crushing device for preparing hectorite nano-particles for metallic paint, which can perform secondary crushing on hectorite and improve the crushing effect, thereby ensuring the production quality of hectorite nano-particles. Comprising a box frame, four sets of fixing rods, a sleeve frame, four sets of bolts, four sets of supporting bases, an inner cylinder, a stirring device, a buckling device, a primary crushing device, a crushing device and a fixing device, the four sets of fixing rods are installed on the left front side, the left rear side, the right front side and the right rear side of the top end of the box frame correspondingly, the crushing device is installed in the box frame, and the fixing device is installed on the inner cylinder; the fixing device is matched and connected with the stirring device.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation of hectorite nanoparticles, in particular to a crushing device for preparing hectorite nanoparticles for metal paint. Background Art

[0002] Lithopsite nanoparticles are one of the raw materials in metallic paint. Lithopsite nanoparticles are mixed by precipitation, overheating and other processes with lithium salt and bentonite. However, the lithium salt needs to be crushed before mixing with bentonite. However, the existing crushing device crushes the lithium salt roughly, resulting in poor crushing effect, which affects the production quality of lithium soapstone nanoparticles. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a crushing device for preparing lithium soapstone nanoparticles for metal paint, which can perform secondary crushing on lithium soapstone by setting up this equipment, thereby improving its crushing effect and ensuring the production quality of lithium soapstone nanoparticles.

[0004] The utility model discloses a crushing device for preparing lithium soapstone nanoparticles for metal paint, comprising a box frame, four sets of fixing rods, a sleeve frame, four sets of bolts, four sets of supporting seats, an inner cylinder, a stirring device, a buckling device, a preliminary crushing device, a crushing device and a fixing device. The four sets of fixing rods are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the top end of the box frame, the four sets of supporting seats are evenly mounted on the outer end of the sleeve frame, the four sets of supporting seats are all connected and provided with sliding holes, the four sets of fixing rods are respectively slidably connected with the sliding holes of the four sets of supporting seats, the outer ends of the sliding holes of the four sets of supporting seats are all connected and provided with threaded holes, the four sets of bolts are respectively threadedly connected with the threaded holes of the four sets of supporting seats, the four sets of bolts are tightened against the four sets of fixing rods, the inner cylinder is fixedly sleeved on the inner end of the sleeve frame, the stirring device is mounted on the inner cylinder, the buckling device is mounted on the inner cylinder, the buckling device is connected in cooperation with the stirring device, the preliminary crushing device is mounted on the lower part of the sleeve frame, the crushing device is mounted in the box frame, the fixing device is mounted on the inner cylinder, and the fixing device is connected in cooperation with the stirring device.

[0005] Preferably, the stirring device includes a first motor, a cover plate, a stirring frame, two groups of limit rods and two groups of rotating blocks. The first motor is installed on the top of the cover plate, and the output end of the first motor passes through the cover plate and is connected to the stirring frame. The two groups of limit rods are symmetrically installed on the outer ends of the cover plate, and the two groups of fixed seats are symmetrically installed on the outer ends of the inner cylinder. The two groups of rotating blocks are rotatably installed on the two groups of fixed seats, and the two groups of rotating blocks are connected with through holes. The two groups of limit rods are slidably connected to the through holes of the two groups of rotating blocks. The fixing device is installed on the two groups of fixed seats of the inner cylinder, and the fixing device is cooperatively connected with the two groups of rotating blocks.

[0006] Preferably, the snap-fitting device includes two groups of inclined blocks, two groups of clamping blocks, two groups of L-shaped plates and two groups of electric push rods. The two groups of inclined blocks are symmetrically installed on the outer end of the cover plate, the two groups of L-shaped plates are symmetrically installed on the upper side of the outer end of the inner cylinder, the two groups of electric push rods are respectively installed on the outer ends of the two groups of L-shaped plates, and the output ends of the two groups of electric push rods respectively pass through the two groups of L-shaped plates and are connected to the two groups of clamping blocks, and the positions of the two groups of clamping blocks correspond to those of the two groups of inclined blocks.

[0007] Preferably, the preliminary crushing device includes four groups of second motors and four groups of grinding discs. The four groups of second motors are evenly installed on the lower side of the outer end of the sleeve frame, and the four groups of grinding discs are evenly rotatably installed on the lower side of the inner end of the sleeve frame. The output ends of the four groups of second motors pass through the sleeve frame respectively and are connected to the four groups of grinding discs.

[0008] Preferably, the crushing device includes two groups of crushing rollers, two groups of gears, an L-shaped frame and a third motor. The two groups of crushing rollers are rotatably installed in the box frame, one end of the two groups of crushing rollers passes through the box frame and extends to the outside of the box frame, two groups of gears are respectively installed on the two groups of crushing rollers, the two groups of gears are located outside the box frame, the two groups of gears are meshed, the L-shaped frame is installed at the front end of the box frame, the third motor is installed at the front end of the L-shaped frame, and the output end of the third motor passes through the L-shaped frame and is connected to the front end of the right crushing roller.

[0009] Preferably, the fixing device includes two groups of positioning pins, two groups of sliding rods and two groups of springs, the two groups of sliding rods are respectively installed on the two groups of positioning pins, the two groups of fixing seats at the outer end of the inner cylinder are provided with sliding grooves, the two groups of sliding rods slide in the two groups of sliding grooves, the two groups of springs are respectively sleeved on the two groups of sliding rods, one end of the two groups of springs are connected to the two groups of positioning pins, and the other ends of the two groups of springs are connected to the two groups of fixing seats at the outer end of the inner cylinder, the two groups of rotating blocks are provided with positioning grooves, and the two groups of positioning pins correspond to the positions of the positioning grooves on the two groups of rotating blocks.

[0010] Preferably, a sealing ring is provided at the top end of the inner cylinder.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the four groups of support seats are slid downward on the four groups of fixing rods, and when the bottom end of the sleeve frame is tightly attached to the top end of the box frame, the four groups of bolts are rotated, the four groups of bolts are threadedly connected with the four groups of support seats, and the four groups of bolts are tightened to the four groups of fixing rods, thereby fixing the sleeve frame, and then the stirring device is turned over, and the salt is placed in the inner cylinder, and then the stirring device is in a vertical state, and then the fixing device fixes the direction of the stirring device, and then the stirring device cover is installed on the top end of the inner cylinder, and then the buckling device fixes the stirring device, and then the stirring device is opened, and the stirring device moves the salt, and at the same time the preliminary crushing device is opened, the preliminary crushing device crushes the salt, and the crushed salt falls into the box frame, and the crushing device further crushes the salt, and by setting this equipment, the salt can be crushed for the second time, which improves its crushing effect, thereby ensuring the production quality of soapstone nanoparticles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0013] Figure 2 It is a second perspective structural schematic diagram of the utility model;

[0014] Figure 3 yes Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0015] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of B;

[0016] Figure 5 yes Figure 2 Schematic diagram of the enlarged structure of C in the middle;

[0017] Markings in the attached drawings: 1. box frame; 2. fixing rod; 3. sleeve frame; 4. bolt; 5. support seat; 6. inner cylinder; 7. first motor; 8. cover plate; 9. stirring frame; 10. limit rod; 11. rotating block; 12. inclined block; 13. clamping block; 14. L-shaped plate; 15. electric push rod; 16. second motor; 17. grinding disc; 18. crushing roller; 19. gear; 20. L-shaped frame; 21. third motor; 22. positioning pin; 23. sliding rod; 24. spring; 25. positioning groove. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figures 1 to 5 As shown, the utility model is a crushing device for preparing lithium soapstone nanoparticles for metal paint, comprising a box frame 1, four sets of fixing rods 2, a sleeve frame 3, four sets of bolts 4, four sets of support seats 5, an inner cylinder 6, a stirring device, a buckling device, a preliminary crushing device, a crushing device and a fixing device, the four sets of fixing rods 2 are respectively installed on the left front side, the left rear side, the right front side and the right rear side of the top of the box frame 1, the four sets of support seats 5 are evenly installed on the outer end of the sleeve frame 3, the four sets of support seats 5 are all connected with sliding holes, the four sets of fixing rods 2 are respectively connected with the four sets of support seats 5 is slidably connected, the outer ends of the sliding holes of the four groups of support seats 5 are connected and provided with threaded holes, the four groups of bolts 4 are respectively threadedly connected with the threaded holes of the four groups of support seats 5, the four groups of bolts 4 are tightened against the four groups of fixing rods 2, the inner cylinder 6 is fixedly sleeved on the inner end of the sleeve frame 3, the stirring device is installed on the inner cylinder 6, the buckling device is installed on the inner cylinder 6, the buckling device is connected with the stirring device, the preliminary crushing device is installed at the lower part of the sleeve frame 3, the crushing device is installed in the box frame 1, the fixing device is installed on the inner cylinder 6, and the fixing device is connected with the stirring device;

[0020] The four groups of support seats 5 are slid downward on the four groups of fixed rods 2. When the bottom end of the sleeve frame 3 is in close contact with the top end of the box frame 1, the four groups of bolts 4 are turned, and the four groups of bolts 4 are threadedly connected with the four groups of support seats 5. The four groups of bolts 4 tighten the four groups of fixed rods 2 to fix the sleeve frame 3. Then the stirring device is turned over, and the salt is placed in the inner cylinder 6. Then the stirring device is in a vertical state, and then the fixing device fixes the direction of the stirring device. Then the stirring device cover is installed on the top of the inner cylinder 6, and then the buckling device fixes the stirring device. Then the stirring device is opened, and the stirring device moves the salt. At the same time, the preliminary crushing device is opened, and the preliminary crushing device crushes the salt. The crushed salt falls into the box frame 1, and the crushing device further crushes the salt. By setting this equipment, the salt can be crushed for the second time, which improves its crushing effect, thereby ensuring the production quality of soapstone nanoparticles.

[0021] As a preferred embodiment of the above embodiment, the stirring device includes a first motor 7, a cover plate 8, a stirring frame 9, two groups of limiting rods 10 and two groups of rotating blocks 11. The first motor 7 is installed at the top of the cover plate 8, and the output end of the first motor 7 passes through the cover plate 8 and is connected to the stirring frame 9. The two groups of limiting rods 10 are symmetrically installed on the outer ends of the cover plate 8, and the two groups of fixing seats are symmetrically installed on the outer ends of the inner cylinder 6. The two groups of rotating blocks 11 are rotatably installed on the two groups of fixing seats, and the two groups of rotating blocks 11 are connected with through holes. The two groups of limiting rods 10 are slidably connected with the through holes of the two groups of rotating blocks 11. The fixing device is installed on the two groups of fixing seats of the inner cylinder 6, and the fixing device is matched with the two groups of rotating blocks 11.

[0022] By setting the first motor 7, the cover plate 8, the stirring frame 9, the limit rod 10 and the rotating block 11, the two groups of rotating blocks 11 are rotated on the two groups of fixed seats of the inner cylinder 6, and the two groups of rotating blocks 11 drive the cover plate 8 to rotate to one side as a whole, and then the rational salt is placed inside the inner cylinder 6, and then the cover plate 8 is rotated to a vertical state so that the position of the cover plate 8 corresponds to the position of the inner cylinder 6, and then the fixing device fixes the two groups of rotating blocks 11, and then the two groups of limit rods 10 slide downward on the two groups of rotating blocks 11, when the cover plate 8 is covered on the top of the inner cylinder 6, the buckling device fixes the cover plate 8, and then the first motor 7 is turned on, the first motor 7 drives the stirring frame 9 to rotate, and the stirring frame 9 moves the rational salt in the inner cylinder 6, which drives the rational salt to move, thereby crushing it.

[0023] As a preferred embodiment of the above, the buckling device includes two groups of inclined blocks 12, two groups of clamping blocks 13, two groups of L-shaped plates 14 and two groups of electric push rods 15. The two groups of inclined blocks 12 are symmetrically mounted on the outer ends of the cover plate 8, the two groups of L-shaped plates 14 are symmetrically mounted on the upper side of the outer end of the inner cylinder 6, the two groups of electric push rods 15 are respectively mounted on the outer ends of the two groups of L-shaped plates 14, and the output ends of the two groups of electric push rods 15 pass through the two groups of L-shaped plates 14 and are connected to the two groups of clamping blocks 13, and the two groups of clamping blocks 13 correspond to the positions of the two groups of inclined blocks 12;

[0024] By setting the inclined block 12, the clamping block 13, the L-shaped plate 14 and the electric push rod 15, when the cover plate 8 is covered on the top of the inner tube 6, the two groups of electric push rods 15 are opened, and the two groups of electric push rods 15 drive the two groups of clamping blocks 13 to move inward, and the two groups of clamping blocks 13 are clamped with the two groups of inclined blocks 12, so as to fix the cover plate 8, thereby playing the role of buckling and fixing the cover plate 8.

[0025] As a preferred embodiment of the above, the preliminary crushing device includes four sets of second motors 16 and four sets of grinding discs 17. The four sets of second motors 16 are evenly mounted on the lower side of the outer end of the sleeve frame 3, and the four sets of grinding discs 17 are evenly rotatably mounted on the lower side of the inner side of the sleeve frame 3. The output ends of the four sets of second motors 16 pass through the sleeve frame 3 and are connected to the four sets of grinding discs 17 respectively.

[0026] By setting the second motor 16 and the grinding disc 17, and by turning on four groups of the second motor 16, the four groups of the second motor 16 drive the four groups of the grinding disc 17 to rotate, and the four groups of the grinding disc 17 crush the rational salt, thereby playing the role of crushing the rational salt.

[0027] As a preferred embodiment of the above, the crushing device includes two groups of crushing rollers 18, two groups of gears 19, an L-shaped frame 20 and a third motor 21. The two groups of crushing rollers 18 are rotatably mounted in the box frame 1, one end of the two groups of crushing rollers 18 passes through the box frame 1 and extends to the outside of the box frame 1, two groups of gears 19 are respectively mounted on the two groups of crushing rollers 18, the two groups of gears 19 are located outside the box frame 1, the two groups of gears 19 are meshed, the L-shaped frame 20 is mounted on the front end of the box frame 1, the third motor 21 is mounted on the front end of the L-shaped frame 20, and the output end of the third motor 21 passes through the L-shaped frame 20 and is connected to the front end of the right crushing roller 18;

[0028] By setting the crushing roller 18, the gear 19, the L-shaped frame 20 and the third motor 21, by turning on the third motor 21, the third motor 21 drives the right crushing roller 18 to rotate, the right crushing roller 18 drives the right gear 19 to mesh with the left gear 19, the left gear 19 drives the left crushing roller 18 to rotate, and the two groups of crushing rollers 18 rotate to perform secondary crushing on the crushed rational salt, which can perform secondary crushing on the rational salt and improve its crushing effect.

[0029] As a preferred embodiment of the above embodiment, the fixing device includes two groups of positioning pins 22, two groups of sliding rods 23 and two groups of springs 24. The two groups of sliding rods 23 are respectively installed on the two groups of positioning pins 22. The two groups of fixing seats at the outer end of the inner cylinder 6 are provided with sliding grooves. The two groups of sliding rods 23 slide in the two groups of sliding grooves. The two groups of springs 24 are respectively sleeved on the two groups of sliding rods 23. One end of the two groups of springs 24 is connected to the two groups of positioning pins 22, and the other end of the two groups of springs 24 is connected to the two groups of fixing seats at the outer end of the inner cylinder 6. The two groups of rotating blocks 11 are provided with positioning grooves 25. The two groups of positioning pins 22 correspond to the positioning grooves 25 on the two groups of rotating blocks 11.

[0030] By setting the positioning pins 22, the slide rods 23, the springs 24 and the positioning grooves 25, when the cover plate 8 is in a vertical state, the two groups of positioning pins 22 are engaged with the positioning grooves 25 on the two groups of rotating blocks 11 under the action of the two groups of springs 24, thereby fixing the two groups of rotating blocks 11.

[0031] As a preferred embodiment of the above, a sealing ring is provided at the top of the inner cylinder 6;

[0032] The sealing performance between the cover plate 8 and the inner tube 6 can be improved.

[0033] The utility model discloses a crushing device for preparing lithium soapstone nanoparticles for metal paint. When it is working, firstly, four groups of support seats 5 are slid downward on four groups of fixing rods 2. When the bottom end of the sleeve frame 3 is tightly attached to the top end of the box frame 1, four groups of bolts 4 are rotated. The four groups of bolts 4 are threadedly connected with the four groups of support seats 5. The four groups of bolts 4 are pressed against the four groups of fixing rods 2, thereby fixing the sleeve frame 3. Then, two groups of rotating blocks 11 are rotated on the two groups of fixing seats of the inner cylinder 6. The two groups of rotating blocks 11 drive the cover plate 8 to rotate to one side as a whole. Then, the salt is placed inside the inner cylinder 6. After that, the cover plate 8 is rotated to a vertical state so that the cover plate 8 corresponds to the position of the inner cylinder 6. Then, the two groups of positioning pins 22 are clamped with the positioning grooves 25 on the two groups of rotating blocks 11 under the action of the two groups of springs 24, thereby fixing the two groups of rotating blocks 11. Then, the two groups of limiting rods 10 are slid downward on the two groups of rotating blocks 11. When the cover plate 8 is installed on the top of the inner cylinder 6, the two sets of electric push rods 15 are opened, and the two sets of electric push rods 15 drive the two sets of card blocks 13 to move inward, and the two sets of card blocks 13 are clamped with the two sets of inclined blocks 12 to fix the cover plate 8, and then the first motor 7 is turned on, and the first motor 7 drives the stirring frame 9 to rotate, and the stirring frame 9 moves the rational salt in the inner cylinder 6, and at the same time, the four sets of second motors 16 and the third motor 21 are turned on, and the four sets of second motors 16 drive the four sets of grinding discs 17 to rotate, and the four sets of grinding discs 17 crush the rational salt, and the crushed rational salt falls into the box frame 1, and the third motor 21 drives the right crushing roller 18 to rotate, and the right crushing roller 18 drives the right gear 19 to mesh with the left gear 19, and the left gear 19 drives the left crushing roller 18 to rotate, and the two sets of crushing rollers 18 rotate to perform secondary crushing on the crushed rational salt.

[0034] The installation method, connection method or setting method of the crushing device for preparing lithium soapstone nanoparticles for metal paint of the utility model are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the first motor 7, electric push rod 15, second motor 16, and third motor 21 of the crushing device for preparing lithium soapstone nanoparticles for metal paint of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manual.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A crushing device for preparing hectorite nanoparticles for metal paint, characterized in that: The invention comprises a box frame (1), four sets of fixing rods (2), a sleeve frame (3), four sets of bolts (4), four sets of supporting seats (5), an inner cylinder (6), a stirring device, a buckling device, a preliminary crushing device, a crushing device and a fixing device, wherein the four sets of fixing rods (2) are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the top end of the box frame (1), the four sets of supporting seats (5) are evenly mounted on the outer end of the sleeve frame (3), the four sets of supporting seats (5) are all connected and provided with sliding holes, the four sets of fixing rods (2) are respectively slidably connected to the sliding holes of the four sets of supporting seats (5), and the four sets of supporting seats are The outer ends of the sliding holes (5) are connected to threaded holes, four groups of bolts (4) are respectively threadedly connected to the threaded holes of the four groups of support seats (5), the four groups of bolts (4) are tightened against the four groups of fixing rods (2), the inner cylinder (6) is fixedly sleeved on the inner end of the sleeve frame (3), the stirring device is installed on the inner cylinder (6), the buckle device is installed on the inner cylinder (6), the buckle device is connected with the stirring device, the preliminary crushing device is installed at the lower part of the sleeve frame (3), the crushing device is installed in the box frame (1), the fixing device is installed on the inner cylinder (6), and the fixing device is connected with the stirring device.

2. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 1, characterized in that: The stirring device comprises a first motor (7), a cover plate (8), a stirring frame (9), two sets of limiting rods (10) and two sets of rotating blocks (11); the first motor (7) is mounted on the top of the cover plate (8); the output end of the first motor (7) passes through the cover plate (8) and is connected to the stirring frame (9); the two sets of limiting rods (10) are symmetrically mounted on the outer ends of the cover plate (8), the two sets of fixing seats are symmetrically mounted on the outer ends of the inner cylinder (6), the two sets of rotating blocks (11) are rotatably mounted on the two sets of fixing seats, the two sets of rotating blocks (11) are connected and provided with through holes, the two sets of limiting rods (10) are slidably connected to the through holes of the two sets of rotating blocks (11), the fixing device is mounted on the two sets of fixing seats of the inner cylinder (6), and the fixing device is cooperatively connected to the two sets of rotating blocks (11).

3. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 2, characterized in that: The locking device comprises two groups of inclined blocks (12), two groups of clamping blocks (13), two groups of L-shaped plates (14) and two groups of electric push rods (15). The two groups of inclined blocks (12) are symmetrically mounted on the outer ends of the cover plate (8), the two groups of L-shaped plates (14) are symmetrically mounted on the upper side of the outer ends of the inner cylinder (6), the two groups of electric push rods (15) are respectively mounted on the outer ends of the two groups of L-shaped plates (14), the output ends of the two groups of electric push rods (15) respectively pass through the two groups of L-shaped plates (14) and are connected to the two groups of clamping blocks (13), and the two groups of clamping blocks (13) correspond to the positions of the two groups of inclined blocks (12).

4. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 3, characterized in that: The preliminary crushing device comprises four sets of second motors (16) and four sets of grinding discs (17). The four sets of second motors (16) are evenly mounted on the lower side of the outer end of the sleeve frame (3). The four sets of grinding discs (17) are evenly rotatably mounted on the lower side of the inner end of the sleeve frame (3). The output ends of the four sets of second motors (16) respectively pass through the sleeve frame (3) and are connected to the four sets of grinding discs (17).

5. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 4, characterized in that: The crushing device comprises two groups of crushing rollers (18), two groups of gears (19), an L-shaped frame (20) and a third motor (21). The two groups of crushing rollers (18) are rotatably mounted in a box frame (1). One end of the two groups of crushing rollers (18) passes through the box frame (1) and extends to the outside of the box frame (1). The two groups of gears (19) are respectively mounted on the two groups of crushing rollers (18). The two groups of gears (19) are located outside the box frame (1). The two groups of gears (19) are meshed with each other. The L-shaped frame (20) is mounted at the front end of the box frame (1). The third motor (21) is mounted at the front end of the L-shaped frame (20). The output end of the third motor (21) passes through the L-shaped frame (20) and is connected to the front end of the right crushing roller (18).

6. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 5, characterized in that: The fixing device comprises two groups of positioning pins (22), two groups of sliding rods (23) and two groups of springs (24). The two groups of sliding rods (23) are respectively mounted on the two groups of positioning pins (22). The two groups of fixing seats at the outer end of the inner cylinder (6) are both provided with sliding grooves. The two groups of sliding rods (23) slide in the two groups of sliding grooves. The two groups of springs (24) are respectively sleeved on the two groups of sliding rods (23). One end of the two groups of springs (24) is connected to the two groups of positioning pins (22). The other end of the two groups of springs (24) is connected to the two groups of fixing seats at the outer end of the inner cylinder (6). The two groups of rotating blocks (11) are both provided with positioning grooves (25). The two groups of positioning pins (22) correspond to the positioning grooves (25) on the two groups of rotating blocks (11).

7. The crushing device for preparing hectorite nanoparticles for metal paint according to claim 6, characterized in that: A sealing ring is provided at the top end of the inner cylinder (6).

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