Crushing and sieving device for powder coating production
Through the relative rotation of the double crushing wheel and the dynamic screening mechanism, the problems of insufficient crushing and screening blockage in powder coating production are solved, efficient and uniform crushing and screening are achieved, and production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422896773.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In the production of existing powder coatings, common crushers have poor adaptability to paints with different hardness and toughness, insufficient crushing, uneven particle size, which affects the quality of the finished product, and are prone to clogging the screen holes during screening, resulting in low production efficiency.
The crushing assembly and dynamic screening mechanism with the double crushing wheel rotating relative rotation are adopted. The rotating rod and crushing wheel are meshed by the motor-driven gear to achieve strong shearing and crushing, and the screening frame is driven back and forth through the belt transmission linkage rod to avoid material accumulation, and the qualified powder is collected in conjunction with the collection box to optimize the screening process.
It improves the crushing efficiency and particle size uniformity, reduces screen hole blockage, improves production continuity and screening efficiency, and ensures product quality and production fluency.
Smart Images
Figure CN223288146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder coating production, in particular to a crushing and screening device used for powder coating production. Background Art
[0002] Powder coatings are booming, finding widespread application in a wide range of fields, including architecture, furniture, home appliances, and automobiles. Market demand continues to rise thanks to their outstanding environmental performance, efficient application, and superior coating quality. The production process for powder coatings is complex and meticulous, with crushing and screening being a crucial step that determines the quality of the final product. During production, powders require crushing equipment for pulverization.
[0003] The common simple hammer mill relies on high-speed rotating hammers to impact materials to crush them, which can only reduce the particle size preliminarily. It has poor adaptability to coating raw materials with different hardness and toughness, and is prone to insufficient material crushing and uneven particle size, which brings difficulties to subsequent processing and affects the color and leveling of the finished product. In addition, during screening, conventional vibrating screens or swing screens are mostly fixed screens, and materials are prone to accumulation and clogging of the mesh, resulting in a significant reduction in screening speed and the need for frequent shutdowns for cleaning. Therefore, a crushing and screening device for powder coating production is proposed to solve the above problems. Utility Model Content
[0004] In view of the above problems, the utility model provides a crushing and screening device for powder coating production.
[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0006] A crushing and screening device for powder coating production includes a base plate, a bracket fixedly installed on the top side of the base plate, a crushing box fixedly installed on one side of the bracket, a crushing assembly arranged in the crushing box, a first pulley arranged on one side of the crushing box, a long hole opened in the base plate, guide grooves opened on the inner walls on both sides of the long hole, two guide blocks slidably installed in the two guide grooves, the top sides of the multiple guide blocks are fixedly connected to the same screen frame, a fixed plate fixedly installed on the top side of the base plate, a fixed column fixedly installed on one side of the fixed plate, a transmission assembly arranged between the fixed column and the first pulley, and a linkage assembly arranged on the other side of the fixed column.
[0007] Preferably, the pulverizing assembly includes a motor fixedly mounted on one side of the pulverizing box, an output end of the motor rotates through the pulverizing box and extends to the outside of the pulverizing box, and a first gear is fixedly sleeved on the output end of the motor.
[0008] Preferably, a circular hole is opened on one side of the crushing box, and a rotating rod is arranged in the circular hole. One end of the rotating rod is rotatably connected to the inner wall of one side of the crushing box, and the other end of the rotating rod is fixedly sleeved with a second gear, which is engaged with the first gear. The rotating rod and the outer side of the output end of the motor are both fixedly sleeved with crushing wheels.
[0009] Preferably, the transmission assembly includes a second pulley movably sleeved on the outer side of the fixed column, and the second pulley and the first pulley share the same belt.
[0010] Preferably, the linkage assembly includes a connecting frame fixedly installed on one side of the second pulley, a first connecting column fixedly connected to one side of the connecting frame, a linkage rod movably sleeved on the outer side of the first connecting column, a square plate fixedly installed on the top side of the screen frame, a second connecting column fixedly installed on one side of the square plate, and the other end of the linkage rod movably sleeved on the outer side of the second connecting column.
[0011] Preferably, a baffle is fixedly installed on the top side of the crushing box, inclined plates are fixedly installed on the inner walls on both sides of the crushing box, and the two inclined plates are symmetrically arranged. A discharge port is fixedly connected to the bottom side of the crushing box, and the discharge port faces the screen frame.
[0012] Preferably, a collecting box is provided below the bottom plate, and the screen frame is located above the collecting box.
[0013] Beneficial effects of the utility model:
[0014] 1. The motor drives the first gear to rotate, and with the help of the meshing linkage with the second gear, it drives the rotating rod to operate in coordination, so that the motor and the crushing wheels on the outside of the rotating rod rotate synchronously and in opposite directions. This mode of relative rotation of the two crushing wheels provides stable and strong shearing and extrusion forces for powder coatings. After the operator puts in the material to be crushed, it can be quickly drawn into the gap between the crushing wheels, effectively breaking the material. Whether it is particles with high hardness or agglomerates with slightly stronger toughness, they can all be refined to the ideal particle size, greatly improving the efficiency and quality of the crushing process, laying a solid foundation for subsequent processing, and ensuring the smooth progress of the production process.
[0015] 2. By providing a belt, the second pulley is driven by the belt to synchronously drive the connecting frame to rotate, so that the first connecting column and the second connecting column are cleverly connected by the linkage rod, which is successfully converted into the reciprocating movement of the screen frame. This dynamic screening mechanism allows the screen frame to always be in a left and right shaking state. After the powder coating falls from the discharge port, it will not accumulate in one place to avoid clogging the screen holes. Compared with the traditional fixed screen, the material is continuously exchanged on the screen surface, and the chance of fine particle materials passing through the screen is greatly increased, which significantly reduces the blockage phenomenon and greatly improves the screening efficiency. It ensures that products that meet the particle size requirements are screened and collected in time, and non-compliant materials are effectively intercepted, optimizing the overall screening effect.
[0016] 3. By setting up a collection box, qualified powder coatings that have been accurately screened by the screen frame can naturally fall into the collection box for storage, which is convenient for subsequent unified deployment and processing, and eliminates the need for additional manual handling and collection. The large volume of powder raw materials that have not been screened remains in the screen frame and can be put back into the crushing box for crushing again. From crushing to screening to collection, each link is closely connected and operates smoothly. Operators can operate easily according to the process specifications, which not only reduces labor intensity but also improves production continuity, meeting the needs of industrial large-scale and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the structure of the utility model;
[0019] Figure 3 This is a schematic diagram of some parts of the crushing wheel structure of the utility model;
[0020] Figure 4 It is a schematic diagram of some parts of the linkage rod structure of the utility model.
[0021] In the figure: 1. bottom plate; 2. bracket; 3. crushing box; 4. baffle; 5. discharge port; 6. motor; 7. first gear; 8. rotating rod; 9. second gear; 10. crushing wheel; 11. first pulley; 12. fixed plate; 13. fixed column; 14. second pulley; 15. belt; 16. connecting frame; 17. first connecting column; 18. linkage rod; 19. guide groove; 20. guide block; 21. screen frame; 22. square plate; 23. second connecting column; 24. collecting box; 25. inclined plate. DETAILED DESCRIPTION
[0022] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.
[0023] like Figure 1-4The present invention relates to a crushing and screening device for powder coating production, comprising a bottom plate 1, a bracket 2 being fixedly mounted on the top side of the bottom plate 1, a crushing box 3 being fixedly mounted on one side of the bracket 2, a crushing assembly being arranged in the crushing box 3, a first pulley 11 being arranged on one side of the crushing box 3, a long hole being opened in the bottom plate 1, guide grooves 19 being opened on both sides of the inner wall of the long hole, two guide blocks 20 being slidably mounted in the two guide grooves 19, a plurality of guide blocks 20 being fixedly connected to the same sieve frame 21 on the top side, a fixed plate 12 being fixedly mounted on the top side of the bottom plate 1, a fixed column 13 being fixedly mounted on one side of the fixed plate 12, a transmission assembly being arranged between the fixed column 13 and the first pulley 11, and a fixed A linkage assembly is provided on the other side of the column 13, and the transmission assembly includes a second pulley 14 movably sleeved on the outer side of the fixed column 13, and the second pulley 14 and the first pulley 11 share the same belt 15, and the linkage assembly includes a connecting frame 16 fixedly installed on one side of the second pulley 14, and a first connecting column 17 is fixedly connected to one side of the connecting frame 16. A linkage rod 18 is movably sleeved on the outer side of the first connecting column 17, and a square plate 22 is fixedly installed on the top side of the screen frame 21. A second connecting column 23 is fixedly installed on one side of the square plate 22. The other end of the linkage rod 18 is movably sleeved on the outer side of the second connecting column 23. By providing the linkage rod 18, when the crushed powder coating flows along the discharge port 5 When it slides onto the screen frame 21, and because the output end of the motor 6 is fixedly sleeved with the first pulley 11, the first pulley 11 and the second pulley 14 are connected by the same belt 15. Under the transmission action of the belt 15, the second pulley 14 drives the connecting frame 16 to rotate synchronously. A first connecting column 17 is fixedly installed on one side of the connecting frame 16. The first connecting column 17 and the second connecting column 23 are transmitted by means of a linkage rod 18. Specifically, when the connecting frame 16 drives the first connecting column 17 to rotate to the right, the other end of the linkage rod 18 will push the second connecting column 23 to move to the right synchronously, and when the first connecting column 17 rotates to the left, the linkage rod 18 will pull the second connecting column The column 23 moves synchronously to the left, so that the screen frame 21 will move back and forth under the push and pull action of the linkage rod 18, thereby efficiently screening the powder coating in the screen frame 21. Thanks to the fact that the screen frame 21 is always in a state of shaking and moving left and right, the powder coating will not accumulate at a certain place in the screen frame 21 when falling from the discharge port 5, effectively avoiding the blockage problem, and the device can synchronize the crushing and screening through the transmission of the belt 15, thereby greatly improving the overall production speed, and through the provision of multiple guide blocks 20, the multiple guide blocks 20 can play a guiding and limiting role when the screen frame 2 moves back and forth, so that the screen frame 21 can be more stable when moving back and forth.
[0024] Specifically, the crushing assembly includes a motor 6 fixedly installed on one side of the crushing box 3, the output end of the motor 6 rotates through the crushing box 3 and extends to the outside of the crushing box 3, the output end of the motor 6 is fixedly sleeved with a first gear 7, a circular hole is opened on one side of the crushing box 3, and a rotating rod 8 is provided in the circular hole. One end of the rotating rod 8 is rotatably connected to the inner wall of one side of the crushing box 3, and the other end of the rotating rod 8 is fixedly sleeved with a second gear 9, which is engaged with the first gear 7. The rotating rod 8 and the outer side of the output end of the motor 6 are fixedly sleeved with a crushing wheel 10. The first gear 7 is rotated by the operation of the motor 6, and because the first gear 7 is engaged with the second gear 9, when the first gear 7 rotates, the second gear 9 rotates synchronously and drives the rotating rod 8 to rotate in the opposite direction of the first gear 7. In this process, the motor 6 and the crushing wheel 10 fixedly sleeved on the outer side of the rotating rod 8 also rotate synchronously. During the relative rotation, personnel can put the powder coating to be crushed into the crushing box 3. When the powder coating contacts the two crushing wheels 10, the two crushing wheels 10 can crush it.
[0025] The powder coating 5 is screened by the screen frame 21, and the powder coating 5 is screened by the screen frame 21, and the powder coating 5 is screened by the screen frame 21.
[0026] The working principle of the present invention is as follows: the motor 6 starts running and drives the first gear 7 to rotate. Since the first gear 7 and the second gear 9 are meshed with each other, when the first gear 7 rotates, the second gear 9 rotates synchronously therewith and drives the rotating rod 8 to rotate in the opposite direction of the first gear 7. In this process, the motor 6 and the crushing wheel 10 fixedly sleeved on the outside of the rotating rod 8 also rotate synchronously. At this time, the operator puts the powder coating to be crushed into the crushing box 3. When the powder coating contacts the two relatively rotating crushing wheels 10, it will be crushed under the shearing and extrusion action of the two crushing wheels, and the crushed powder coating slides along the discharge port 5 to the screen frame 21. Because the output end of the motor 6 is fixedly sleeved with the first pulley 11, the first pulley 11 and the second pulley 14 are connected by the same belt 15 for transmission. Under the transmission action of the belt 15, the second pulley 14 drives the connecting frame 16 to rotate synchronously. A first connecting column 17 is fixedly installed on one side of the connecting frame 16. The first connecting column 17 and the second connecting column 23 are connected by a coupling Specifically, when the connecting frame 16 drives the first connecting column 17 to rotate to the right, the other end of the linkage rod 18 will push the second connecting column 23 to move to the right synchronously, and when the first connecting column 17 rotates to the left, the linkage rod 18 will pull the second connecting column 23 to move to the left synchronously. In this way, the screen frame 21 will realize reciprocating movement under the push and pull action of the linkage rod 18, thereby efficiently screening the powder coating in the screen frame 21. Thanks to the screen frame 21 always being in a state of left and right shaking movement State, when the powder coating falls from the discharge port 5, it will not accumulate at a certain place in the screen frame 21, which effectively avoids the blockage problem. Compared with the fixed screen, the material constantly changes its position on this dynamic screen frame 21, which greatly reduces the blockage of the screen holes. The equipment is also equipped with a collection box 24. The powder coating after being sieved by the screen frame 21 will fall into the collection box 24 for storage, which is convenient for subsequent unified processing. Those larger powder raw materials that have not been sieved will remain on the screen frame 21 and can be put back into the crushing box 3 for crushing again.
[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0029] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.
Claims
1. A crushing and screening device for powder coating production, comprising a bottom plate (1), characterized in that: The top side of the bottom plate (1) is fixedly mounted with a bracket (2), one side of the bracket (2) is fixedly mounted with a crushing box (3), a crushing assembly is arranged in the crushing box (3), and a first pulley (11) is arranged on one side of the crushing box (3). The bottom plate (1) is provided with a long hole, and the inner walls on both sides of the long hole are provided with guide grooves (19), and two guide blocks (20) are slidably mounted in the two guide grooves (19). The top sides of the plurality of guide blocks (20) are fixedly connected to the same screen frame (21), the top side of the bottom plate (1) is fixedly mounted with a fixed plate (12), one side of the fixed plate (12) is fixedly mounted with a fixed column (13), a transmission assembly is arranged between the fixed column (13) and the first pulley (11), and a linkage assembly is arranged on the other side of the fixed column (13).
2. A crushing and screening device for powder coating production according to claim 1, characterized in that: The pulverizing assembly comprises a motor (6) fixedly mounted on one side of a pulverizing box (3), the output end of the motor (6) rotatingly passing through the pulverizing box (3) and extending to the outside of the pulverizing box (3), and a first gear (7) fixedly sleeved on the output end of the motor (6).
3. A crushing and screening device for powder coating production according to claim 2, characterized in that: A circular hole is provided on one side of the crushing box (3), and a rotating rod (8) is provided in the circular hole. One end of the rotating rod (8) is rotatably connected to an inner wall of one side of the crushing box (3). The other end of the rotating rod (8) is fixedly sleeved with a second gear (9), and the second gear (9) is meshed with the first gear (7). Crushing wheels (10) are fixedly sleeved on the outer sides of the rotating rod (8) and the output end of the motor (6).
4. A crushing and screening device for powder coating production according to claim 1, characterized in that: The transmission assembly comprises a second pulley (14) movably sleeved on the outer side of a fixed column (13); the second pulley (14) and the first pulley (11) share a same belt (15).
5. A crushing and screening device for powder coating production according to claim 4, characterized in that: The linkage assembly comprises a connecting frame (16) fixedly mounted on one side of the second pulley (14), a first connecting column (17) fixedly connected to one side of the connecting frame (16), a linkage rod (18) movably sleeved on the outer side of the first connecting column (17), a square plate (22) fixedly mounted on the top side of the screen frame (21), a second connecting column (23) fixedly mounted on one side of the square plate (22), and the other end of the linkage rod (18) movably sleeved on the outer side of the second connecting column (23).
6. The crushing and screening device for powder coating production according to claim 1, characterized in that: A baffle (4) is fixedly mounted on the top side of the crushing box (3), inclined plates (25) are fixedly mounted on both inner walls of the crushing box (3), and the two inclined plates (25) are symmetrically arranged. A discharge port (5) is fixedly connected to the bottom side of the crushing box (3), and the discharge port (5) faces the screen frame (21).
7. The crushing and screening device for powder coating production according to claim 1, characterized in that: A collecting box (24) is provided below the bottom plate (1), and the screen frame (21) is located above the collecting box (24).