Coating grinding device
By incorporating a cutting disc and a striking roller structure within the feed hopper of the three-roll mill, the problem of large-volume paint getting stuck is solved, achieving thorough grinding and efficient processing of the paint.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
When processing large volumes of heat transfer coatings, existing three-roll mills are prone to getting stuck between the middle and rear rollers, resulting in insufficient grinding.
A paint grinding device was designed, which adopts a cutting blade and a striking roller structure in the feed box. The cutting blade initially breaks down the heat transfer paint, and the cutting blade is rotated by the meshing of the rotating shaft and gear driven by the servo motor. The extrusion of the cam and the fixed plate prevents the paint from getting stuck. At the same time, the sliding impact of the return spring and the sliding frame ensures that the paint leaves the feed port.
It effectively breaks down large volumes of coatings, avoids jamming the grinding rollers, ensures that the coatings are thoroughly ground to the nanoscale, reduces adhesion at the feed inlet, and improves grinding efficiency.
Smart Images
Figure CN224057470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding equipment technology, and in particular to a coating grinding equipment. Background Technology
[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to grinding equipment is also constantly improving. Heat transfer coatings have good thermal stability, excellent pattern reproduction, as well as weather resistance and corrosion resistance. Currently, three-roll mills are generally used to grind heat transfer coatings to the nanoscale.
[0003] Currently used three-roll mills typically place the feed box directly above the middle and rear rollers. The heat transfer coating inside the feed box can fall between the middle and rear rollers for grinding. However, some larger heat transfer coatings, when directly fed, are easily stuck between the middle and rear rollers and are difficult to grind, which is not conducive to the grinding process of the heat transfer coating. Utility Model Content
[0004] The purpose of this invention is to address the following shortcomings in the existing technology: the three-roll mills currently in use generally place the feed box directly above the middle and rear rollers, allowing the heat transfer coating inside the feed box to fall between the middle and rear rollers for grinding. However, some larger heat transfer coatings, when directly fed, are easily stuck between the middle and rear rollers and are difficult to grind, which is not conducive to the grinding of heat transfer coatings. Therefore, this invention proposes a coating grinding device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A paint grinding device includes a machine body and three grinding rollers rotatably mounted on the machine body. A feed box is fixedly connected to the machine body, and a feed inlet is provided in the feed box. A fixing frame is provided below the feed box.
[0007] Two rotating shafts are rotatably mounted on the fixed frame. Each rotating shaft is fixedly connected with a gear, a cam, and multiple cutting blades. The two gears are meshed together. Two sliding assemblies are provided on the feed box. Each sliding assembly includes a sliding frame connected to the feed box via a return spring. A fixed plate and a striking roller are fixedly connected to the sliding frame.
[0008] Preferably, a rubber pad is fixedly connected to the upper surface of the fixing frame, and the rubber pad is in contact with the lower surface of the feed box.
[0009] Preferably, a positioning plate is fixedly connected to one side of the feed box, two positioning rods are fixedly connected to one side of the positioning plate, and two slots for connecting the positioning rods are provided on one side of the fixing frame.
[0010] Preferably, an L-shaped block is threadedly connected to one side surface of the feed box, a plug shaft is slidably connected to the L-shaped block, a first spring is sleeved on the plug shaft, one end of the first spring is fixedly connected to the plug shaft, the other end of the first spring is fixedly connected to the L-shaped block, and a groove is provided on one side of the fixing frame.
[0011] Preferably, a bent rod is threadedly connected to one side of the L-shaped block, and the surface of the bent rod is in contact with the end face of the insert shaft.
[0012] Preferably, a servo motor is fixedly connected to one side of the fixed frame, one of the rotating shafts is fixedly connected to the drive end of the servo motor, and a waterproof sleeve fitted on the outside of the servo motor is fixedly connected to the fixed frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] Workers feed the heat transfer coating material into the feeding box. The material falls into the fixed frame through the feeding port. As multiple cutting blades rotate, the material is initially cut and broken down, reducing larger pieces to smaller ones. This effectively prevents the material from getting stuck between the two grinding rollers and becoming difficult to grind. During this process, the feeding box vibrates due to the impact, causing the material adhering to the inner wall of the feeding port to detach. This prevents a large amount of material from adhering to the inner wall, allowing for more thorough grinding of all the input material and facilitating the grinding process. Attached Figure Description
[0015] Figure 1 This is a front structural diagram of a coating grinding device proposed in this utility model;
[0016] Figure 2 This is a partial right-side view of the feeding box and the fixing frame in this utility model.
[0017] Figure 3 This is a top view of the feed box and the fixing frame in this utility model.
[0018] Figure 4 This is a partial left-side view of the feed box and the fixing frame in this utility model.
[0019] In the diagram: 1. Machine body, 2. Grinding roller, 3. L-shaped block, 4. Striking roller, 5. Feed port, 6. Waterproof sleeve, 7. Feed box, 8. Cam, 9. Gear, 10. Sliding frame, 11. Fixing frame, 12. Fixing plate, 13. First spring, 14. Bending rod, 15. Insert shaft, 16. Positioning plate, 17. Positioning rod, 18. Rotating shaft, 19. Cutting disc. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0022] Reference Figures 1-4 A paint grinding device includes a body 1 and three grinding rollers 2 rotatably mounted on the body 1. The three grinding rollers 2 are driven by three motors respectively. The grinding effect is achieved by the mutual extrusion of the surfaces of the three grinding rollers 2 and friction at different speeds. The device can grind heat transfer paint raw materials to the nanoscale. A feed box 7 is fixedly connected to the body 1. The feed box 7 has a feed inlet 5. A fixed frame 11 is set below the feed box 7. Two rotating shafts 18 are rotatably mounted on the fixed frame 11. A gear 9, a cam 8 and multiple cutting blades 19 are fixedly connected to each rotating shaft 18. The two gears 9 are meshed. Two sliding components are set on the feed box 7. Each sliding component includes a sliding frame 10 connected to the feed box 7 by a return spring. A fixed plate 12 and a striking roller 4 are fixedly connected to the sliding frame 10.
[0023] A rubber pad is fixedly connected to the upper surface of the fixed frame 11, and the rubber pad is in contact with the lower surface of the feed box 7. A positioning plate 16 is fixedly connected to one side of the feed box 7, and two positioning rods 17 are fixedly connected to one side of the positioning plate 16. Two slots for connecting the positioning rods 17 are opened on one side of the fixed frame 11. An L-shaped block 3 is threadedly connected to one side surface of the feed box 7. A shaft 15 is slidably connected to the L-shaped block 3. A first spring 13 is sleeved on the shaft 15. One end of the first spring 13 is fixedly connected to the shaft 15, and the other end of the first spring 13 is fixedly connected to the L-shaped block 3. A groove is opened on one side of the fixed frame 11, and a bent rod 14 is threadedly connected to one side of the L-shaped block 3. The surface of the bent rod 14 is in contact with the end face of the shaft 15.
[0024] During installation, the fixing frame 11 is placed below the feed box 7, with the rubber pad tightly against the lower surface of the feed box 7, effectively ensuring good sealing when the fixing frame 11 is connected to the feed box 7. At this time, each positioning rod 17 is engaged with the corresponding slot. Then, rotate the L-shaped block 3. When one end of the insertion shaft 15 is face-to-face with the groove, under the elastic force of the first spring 13, one end of the insertion shaft 15 will engage with the groove. Then rotate the bending rod 14 to make it threadedly connected with the L-shaped block 3 until the surface of the bending rod 14 is in contact with the end face of the insertion shaft 15 away from the groove. This effectively prevents the insertion shaft 15 from separating from the groove, so that the fixing frame 11 and the feed box 7 can be firmly installed together. Similarly, the fixing frame 11 can be removed to facilitate the disassembly and cleaning of the cutting disc 19.
[0025] A servo motor (not shown) is fixedly connected to one side of the fixed frame 11. One of the rotating shafts 18 is fixedly connected to the drive end of the servo motor. A waterproof sleeve 6 is fixedly connected to the fixed frame 11 and sleeved on the outside of the servo motor. The waterproof sleeve 6 can provide waterproof protection for the servo motor and effectively prevent water from entering the servo motor when cleaning the cutting disc 19.
[0026] In this invention, when the servo motor is powered on, it drives one rotating shaft 18 to rotate, and the two gears 9 mesh together, which in turn drives the other rotating shaft 18 to rotate. The operator feeds the heat transfer coating material into the feed box 7, and the material falls into the fixed frame 11 through the feed inlet 5. During the rotation of the multiple cutting blades 19, the heat transfer coating material is initially cut and broken, thus cutting larger pieces into smaller ones. This effectively prevents the material from getting stuck between the two grinding rollers 2 and becoming difficult to grind, which is beneficial for the heat transfer coating process. During the grinding process, each cam 8 will repeatedly squeeze and detach from the fixed plate 12 during rotation. Initially, the cam 8 does not contact the fixed plate 12, and the striking roller 4 does not contact the fixed frame 11. When the cam 8 squeezes the fixed plate 12, the sliding frame 10 will slide relative to the feed box 7. Since the two ends of the return spring are fixedly connected to the feed box 7 and the sliding frame 10 respectively, the return spring deforms. After the striking roller 4 moves, it will hit the feed box 7. The feed box 7 vibrates so that the heat transfer coating material adhering to the inner wall of the feed port 5 can be removed, effectively avoiding a large amount of heat transfer coating material adhering to the inner wall of the feed port 5.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A paint grinding device comprising a machine body (1) and three grinding rollers (2) rotatably mounted on said machine body (1), characterized in that, The body (1) is fixedly connected with a feeding box (7), the feeding box (7) is provided with a feeding port (5), and the lower portion of the feeding box (7) is provided with a fixed frame (11). The fixed frame (11) is rotatably connected with two rotating shafts (18), each rotating shaft (18) is fixedly connected with a gear (9), a cam (8) and a plurality of cutting blades (19), the two gears (9) are meshed, the feeding box (7) is provided with two sliding assemblies, each sliding assembly comprises a sliding frame (10) connected with the feeding box (7) by a return spring, and the sliding frame (10) is fixedly connected with a fixed plate (12) and a knocking roller (4).
2. A paint grinding device according to claim 1, wherein The upper surface of the fixed frame (11) is fixedly connected with a rubber pad, and the rubber pad is attached to the lower surface of the feeding box (7).
3. A paint grinding device according to claim 1, wherein One side of the feeding box (7) is fixedly connected with a positioning plate (16), one side of the positioning plate (16) is fixedly connected with two positioning rods (17), and one side of the fixed frame (11) is provided with two clamping grooves for connecting the positioning rods (17).
4. A paint grinding device according to claim 1, wherein The side surface of the feeding box (7) is threadedly connected with an L-shaped block (3), the L-shaped block (3) is slidably connected with a plug shaft (15), the plug shaft (15) is sleeved with a first spring (13), one end of the first spring (13) is fixedly connected with the plug shaft (15), and the other end of the first spring (13) is fixedly connected with the L-shaped block (3). The fixed frame (11) is provided with a recess.
5. A paint grinding device according to claim 4, wherein The side surface of the L-shaped block (3) is threadedly connected with a bent rod (14), and the surface of the bent rod (14) is attached to the end surface of the plug shaft (15).
6. A paint grinding device according to claim 1, wherein The fixed frame (11) is fixedly connected with a servo motor, one of the rotating shafts (18) is fixedly connected with the driving end of the servo motor, and the fixed frame (11) is fixedly connected with a waterproof sleeve (6) sleeved outside the servo motor.