Powder grinding device capable of achieving multi-stage screening

Abstract

The utility model discloses a grinding device capable of multi-stage screening, which relates to the field of coating processing and comprises a coating feeding bin, a grinding box and a machine body, the grinding box is fixed at the top end of the machine body, and the coating feeding bin is fixed at the top end of the grinding box. The motor is started to drive the third gear to rotate, the third gear is meshed with the first gear, the first gear drives the coaxial gear to be horizontally meshed with the other coaxial gear, and the two coaxial gears drive the two grinding rollers to rotate inwards to achieve the purpose of grinding raw materials. The first gear drives the coaxial belt pulley to rotate through the first belt in the rotating process and drives the second rotating shaft connected with the second gear to rotate under the meshing effect, the coaxial belt pulley drives the first rotating shaft to rotate through the second belt, and the first rotating shaft, the second rotating shaft and the coaxial belt pulley drive the eccentric wheel to rotate. The eccentric wheel periodically collides with the collision block to push the fixing frame to vibrate up and down along the guide groove.

Description

Technical Field

[0001] This utility model relates to the technical field of coating processing equipment, and in particular to a grinding device capable of multi-stage sieving. Background Technology

[0002] Paint is a coating product with decorative and protective functions. It is usually made from ingredients such as resin, pigment, defoamer and dispersant, and grinding is an important step in the process.

[0003] Chinese Patent Publication No. CN 218394681 U discloses a sieving device for powder coating processing with a multi-stage sieving structure, comprising: a sieving shell, a horizontal plate, and an air pump. A motor is fixed to the upper surface of the sieving shell by screws, and a rotating rod is fixed to the output end of the motor. The transmission mechanism is composed of gears and chains, and thin rods are fixed to the inner sides of the left and right sets of gears within the transmission mechanism. An arc-shaped plate is fixed to the front end of each thin rod, and a top frame is provided above the arc-shaped plate. The input end of the air pump is connected to a housing via a pipe, and the top of a collection frame is threadedly connected to the inside of the housing. A conveying pipe is connected to the right end of the housing. This sieving device for powder coating processing with a multi-stage sieving structure allows the filter plate to rise and fall with the lifting of the top frame, improving filtration efficiency, absorbing airborne powder coating, preventing coating from spreading during feeding, and facilitating the processing of coating collected during feeding.

[0004] The existing technical solutions mentioned above have the following shortcomings: the technical solutions adopt an integrated screening structure. Although the integrated screening method can achieve basic screening operations during use, the screening effect at the top and bottom is inconsistent. At the same time, the structure is difficult to clean, which affects the actual application effect and economic benefits. There is room for optimization. Therefore, it is necessary to design a grinding device that can perform multi-stage screening to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device capable of multi-stage sieving, in order to solve the problems of low sieving discrimination and low efficiency mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sieving grinding device, comprising a paint feed hopper, a grinding box, and a machine body. The grinding box is fixed to the top of the machine body, and the paint feed hopper is fixed to the top of the grinding box. A feed trough is provided at the bottom of the paint feed hopper. Two sets of grinding rollers are provided inside the grinding box. A first gear is rotatably connected to one side of the machine body, and a second gear is rotatably connected to one side of the machine body. A first rotating shaft is rotatably connected to one side of the machine body, and a second rotating shaft and a coaxial pulley are rotatably connected to one side of the machine body. A motor is fixed to the outside of the grinding box. Three sets of fixed frames are slidably connected inside the machine body. A screen is connected inside the fixed frame. Springs are provided at the four corners of the top of the fixed frame, and fixed plates are fixed to the top of each spring. One side of the fixed plate is fixed to the machine body. A coaxial pulley is connected to the outside of the first gear through a first belt and an outer pulley. The coaxial pulley drives the first rotating shaft through a second belt.

[0007] Preferably, guide blocks are fixed on both sides of the fixing frame, and guide grooves are provided on both sides of the interior of the machine body. The fixing frame is slidably connected to the guide grooves of the machine body through the guide blocks.

[0008] Preferably, the width of the guide block matches the width of the guide groove, and the guide block and the guide groove are symmetrically arranged about the central axis of the fixing frame.

[0009] Preferably, mounting blocks are fixed on both sides of the screen, and mounting grooves are provided on both sides inside the fixing frame. The screen is detachably connected to the mounting blocks and the mounting grooves of the fixing frame.

[0010] Preferably, the width of the mounting groove matches the width of the mounting block, and the mounting groove and the mounting block are symmetrically arranged about the central axis of the screen.

[0011] Preferably, the outer side of the machine body is hinged with three sets of discharge doors, and the outer side of each discharge door is covered with an anti-slip sleeve.

[0012] Preferably, one end of each grinding roller extends to the outside of the grinding box and is fixed with a coaxial gear. Two sets of coaxial gears are meshed and connected. The coaxial gear is meshed with the first gear, and the first gear is meshed with the second gear.

[0013] Preferably, eccentric wheels are fixed to the outer sides of the first rotating shaft, the coaxial pulley, and the second rotating shaft, and impact blocks are fixed to the top of the eccentric wheels. The impact blocks are connected to the screen, and fixed casters are fixed to the four corners of the bottom of the machine body.

[0014] Preferably, the aperture of the three sets of screens decreases sequentially from top to bottom.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the multi-stage screening grinding device realizes the functions of efficient grinding and screening processing;

[0016] The motor drives the third gear to rotate, which meshes with the first gear. The first gear drives a coaxial gear to mesh horizontally with another coaxial gear. The two sets of coaxial gears drive two sets of grinding rollers to rotate inward to achieve the purpose of grinding the raw materials. During the rotation of the first gear, the coaxial pulley is driven to rotate through the first belt. At the same time, under the meshing action, the second shaft connected to the second gear is driven to rotate. The coaxial pulley drives the first shaft to rotate through the second belt. The first shaft, the second shaft, and the coaxial pulley drive the eccentric wheel to rotate. The eccentric wheel periodically collides with the impact block, causing it to push the fixed frame to vibrate up and down along the guide groove, so as to achieve the purpose of synchronous multi-stage screening of the coating raw materials. When it is necessary to remove the material, the discharge gate is opened, and the screen can be removed to process the internal raw materials by separating the mounting block from the mounting groove. The guide groove and the guide block ensure the stability of the fixed frame's movement trajectory and avoid uneven loading. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a front view structural diagram of the present utility model;

[0021] Figure 4 This is a schematic diagram of the rear structure of the body of this utility model;

[0022] Figure 5 This is a top view cross-sectional structural diagram of the paint feeding hopper of this utility model.

[0023] Figure 6 This is a top view cross-sectional structural diagram of the grinding box of this utility model.

[0024] Figure 7 This is a top view sectional diagram of the fixing frame of this utility model.

[0025] The following are the annotations in the diagram: 1. Paint feed hopper; 2. Grinding box; 3. Machine body; 4. Fixing frame; 5. Screen; 6. Spring; 7. Grinding roller; 8. Second rotating shaft; 9. Coaxial gear; 10. First gear; 11. Second gear; 12. Coaxial pulley; 13. First belt; 14. Outer belt pulley; 15. Second belt; 16. Impact block; 17. First rotating shaft; 18. Eccentric wheel; 19. Discharge gate; 20. Feed chute; 21. Fixed caster; 22. Mounting groove; 23. Mounting block; 24. Guide groove; 25. Guide block; 26. Fixing plate; 27. Motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figures 1-7 One embodiment of this utility model is a grinding device capable of multi-stage sieving, comprising a paint feed hopper 1, a grinding box 2, and a machine body 3;

[0028] Three sets of discharge doors 19 are hinged to the outside of the machine body 3, and the outside of each discharge door 19 is covered with an anti-slip sleeve.

[0029] Specifically, such as Figure 2 As shown, during use, the discharge gate 19 facilitates the removal and insertion of the screen 5;

[0030] A grinding box 2 is fixed at the top of the machine body 3, and a paint feed hopper 1 is fixed at the top of the grinding box 2. A feed trough 20 is provided at the bottom of the paint feed hopper 1, and two sets of grinding rollers 7 are provided inside the grinding box 2.

[0031] Furthermore, one end of each grinding roller 7 extends to the outside of the grinding box 2 and is fixed with a coaxial gear 9. Two sets of coaxial gears 9 are meshed and connected. A first gear 10 is rotatably connected to one side of the machine body 3. The coaxial gear 9 is meshed and connected with the first gear 10, and the first gear 10 is meshed and connected with the second gear 11.

[0032] Specifically, such as Figure 2 As shown, during use, the meshing of gears enables the two sets of grinding rollers 7 to move inward, facilitating the grinding operation;

[0033] A second gear 11 is rotatably connected to one side of the machine body 3, a motor 27 is fixed to the outside of the grinding box 2, and three sets of fixing frames 4 are slidably connected inside the machine body 3.

[0034] Guide blocks 25 are fixed on both sides of the fixed frame 4, and guide grooves 24 are provided on both sides inside the body 3. The fixed frame 4 is slidably connected to the guide grooves 24 of the body 3 through the guide blocks 25. The width of the guide blocks 25 matches the width of the guide grooves 24. The guide blocks 25 and the guide grooves 24 are symmetrically arranged about the central axis of the fixed frame 4.

[0035] Specifically, such as Figure 1 As shown, during use, the guide block 25 and guide groove 24 can serve as guides and limiters when the fixed frame 4 is raised or lowered.

[0036] The internal connection of the fixing frame 4 is a screen 5;

[0037] Mounting blocks 23 are fixed on both sides of the screen 5, and mounting grooves 22 are provided on both sides inside the frame 4. The screen 5 is detachably connected to the mounting grooves 22 of the frame 4 through the mounting blocks 23. The width of the mounting grooves 22 matches the width of the mounting blocks 23. The mounting grooves 22 and the mounting blocks 23 are symmetrically arranged about the central axis of the screen 5.

[0038] Specifically, such as Figure 1 As shown, during use, the installation block 23 and the installation groove 22 facilitate the loading and unloading of the screen 5;

[0039] The diameter of the five mesh openings in the three sets of screens decreases from top to bottom;

[0040] Specifically, such as Figure 1 As shown, during use, multi-stage screening can be achieved by using three sets of 5-mesh screens with decreasing mesh diameters from top to bottom.

[0041] Springs 6 are provided at the four corners of the top of the fixed frame 4, and fixed plates 26 are fixed at the top of each spring 6. One side of the fixed plate 26 is fixed to the body 3. The first rotating shaft 17 is rotatably connected to one side inside the body 3. The outer side of the first gear 10 is connected to the coaxial pulley 12 through the first belt 13 and the outer pulley 14. The coaxial pulley 12 drives the first rotating shaft 17 through the second belt 15. The second rotating shaft 8 and the coaxial pulley 12 are rotatably connected to one side inside the body 3.

[0042] An eccentric wheel 18 is fixed to the outer side of the first rotating shaft 17, the coaxial pulley 12, and the second rotating shaft 8. An impact block 16 is fixed to the top of the eccentric wheel 18. The impact block 16 is connected to the screen 5. Fixed casters 21 are fixed to the four corners of the bottom of the machine body 3.

[0043] Specifically, such as Figure 1 and Figure 2 As shown, during use, the first belt 13 drives the coaxial pulley 12 to rotate, which in turn drives the first rotating shaft 17 to rotate. The eccentric wheel 18 rotates accordingly and periodically collides with the impact block 16, pushing the fixed frame 4 to vibrate up and down along the guide groove 24.

[0044] Working principle: When this utility model is in use, the motor 27 is started first, which drives the first gear 10 to rotate, which in turn drives the coaxial gear 9 to rotate, thereby driving the two sets of grinding rollers 7 to rotate inward, so as to achieve the grinding of the coating raw materials;

[0045] Secondly, the first gear 10 drives the coaxial pulley 12 to rotate through the first belt 13, which in turn drives the first rotating shaft 17 to rotate. The eccentric wheel 18 rotates accordingly and periodically collides with the impact block 16, pushing the fixed frame 4 to vibrate up and down along the guide groove 24 to achieve multi-stage screening.

[0046] Finally, the screened coating is removed by opening the discharge door 19, and the screen 5 can be separated from the installation slot 22 by the installation block 23 for cleaning or replacement, ensuring the continuous and efficient operation of the equipment.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-stage screenable flour milling device, comprising a coating feed bin (1), a grinding box (2), a machine body (3), the top end of the machine body (3) is fixed with the grinding box (2), and the top end of the grinding box (2) is fixed with the coating feed bin (1); characterized in that The bottom of the coating feed bin (1) is provided with a feeding groove (20), the inside of the grinding box (2) is provided with two groups of grinding rollers (7), one side of the machine body (3) is rotatably connected with a first gear (10), one side of the machine body (3) is rotatably connected with a second gear (11), one side inside the machine body (3) is rotatably connected with a first rotating shaft (17), one side inside the machine body (3) is rotatably connected with a second rotating shaft (8) and a coaxial belt pulley (12), the outside of the grinding box (2) is fixed with a motor (27), the inside of the machine body (3) is slidably connected with three groups of fixing frames (4), the inside of the fixing frame (4) is connected with a screen (5), the top corners of the fixing frame (4) are provided with springs (6), and the top ends of the springs (6) are fixed with fixing plates (26), one side of the fixing plate (26) is fixed with the machine body (3), the outside of the first gear (10) is connected with the coaxial belt pulley (12) through the first belt (13) and the outer belt pulley (14), and the coaxial belt pulley (12) drives the first rotating shaft (17) through the second belt (15).

2. A multi-stage sifting mill according to claim 1, wherein: The two sides of the fixing frame (4) are fixed with guide blocks (25), and the two sides inside the machine body (3) are provided with guide grooves (24); the fixing frame (4) and the guide grooves (24) of the machine body (3) are in sliding connection through the guide blocks (25).

3. A multi-stage sifting mill according to claim 2, wherein: The width of the guide block (25) matches the width of the guide groove (24), and the guide block (25) and the guide groove (24) are symmetrically arranged about the central axis of the fixing frame (4).

4. A multi-stage sifting mill according to claim 1, wherein: The two sides of the screen (5) are fixed with mounting blocks (23), and the two sides inside the fixing frame (4) are provided with mounting grooves (22); the screen (5) and the mounting grooves (22) of the fixing frame (4) are in detachable connection through the mounting blocks (23).

5. A multi-stage sifting mill according to claim 4, wherein: The width of the mounting groove (22) matches the width of the mounting block (23), and the mounting groove (22) and the mounting block (23) are symmetrically arranged about the central axis of the screen (5).

6. A multi-stage sifting mill according to claim 1, wherein: The outside of the machine body (3) is hingedly connected with three groups of discharge doors (19), and the outside of each discharge door (19) is sleeved with an anti-skid sleeve.

7. A multi-stage sifting mill according to claim 1, wherein: One end of each grinding roller (7) extends to the outside of the grinding box (2) and is fixed with a coaxial gear (9), two groups of coaxial gears (9) are meshed and connected, the coaxial gears (9) are meshed and connected with the first gear (10), the first gear (10) is meshed and connected with the second gear (11).

8. A multi-stage sifting mill according to claim 1, wherein: The outside of the first rotating shaft (17), the coaxial belt pulley (12) and the second rotating shaft (8) is fixed with an eccentric wheel (18), and the top end of the eccentric wheel (18) is fixed with an impact block (16), the impact block (16) is connected with the screen (5), and the bottom corners of the machine body (3) are fixed with fixed casters (21).

9. A multi-stage sifting mill according to claim 1, wherein: The three groups of screen meshes (5) have diameters decreasing from top to bottom.

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