A paint mill
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEFFERT BEIJINGPAINT CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing paint grinding machines often result in uneven paint distribution and buildup during the grinding process, which affects the grinding effect.
The design employs a separator block and a dispersion plate. The separator block and dispersion plate are driven by a rotating shaft to ensure that the coating is evenly distributed in the feeding chamber. The coating is also screened by the vibration of the screening plate to prevent accumulation.
This achieves uniform distribution of the coating on the grinding roller, improving grinding efficiency and effectiveness.
Smart Images

Figure CN224405206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology, specifically a coating grinding machine. Background Technology
[0002] Coatings are liquid or solid materials that, when applied to the surface of an object, form a thin film under certain conditions to provide protection, decoration, or other special functions (insulation, rust prevention, mildew prevention, heat resistance, etc.). Because early coatings mostly used vegetable oils as their main raw material, they were also called paints. Now, synthetic resins have replaced vegetable oils, hence the term "coating." Coatings are not always liquid; powder coatings are a major category of coatings. Because coatings contain various additives, they need to be ground to ensure uniform mixing.
[0003] Currently, a Chinese patent discloses a grinding machine for coating processing, with publication number CN222678176U. In the disclosed technical solution, the grinding roller is driven by a drive device at the drive positioning shaft to rotate. The grinding roller then rubs against the grinding block at the position of the grinding block below the feeding pipe, thus grinding again and increasing the grinding efficiency. Finally, the coating is discharged through the discharge pipe. This structure facilitates the improvement of the grinding effect.
[0004] Based on the above-disclosed technical solutions and existing technologies, paint grinding currently uses grinding rollers. However, during the grinding process, the paint entering the grinding rollers is unevenly distributed, and the paint tends to accumulate, which can affect the grinding effect. Therefore, we have designed a paint grinding machine that allows the paint to be distributed more evenly on the grinding rollers. Utility Model Content
[0005] The purpose of this invention is to provide a coating grinding machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A coating grinding machine includes a grinding box and a feeding box. A screening plate is installed inside the grinding box. A grinding roller assembly is installed on the upper side inside the grinding box. A drive motor A is fixedly connected to one end of the grinding roller assembly. A feeding chamber is opened in the middle of the inner side of the feeding box. A discharge port communicating with the grinding box is opened at the bottom of the feeding box. A storage chamber connected to the feeding chamber is opened at the top of the feeding box. A rotating shaft is installed inside the feeding chamber. Dividing blocks are fixedly connected at equal intervals to the outer side of the rotating shaft. A bevel gear assembly is fixedly connected to one end of the rotating shaft. A turntable is fixedly connected to the top of the bevel gear assembly. A short shaft is fixedly connected to the eccentric part of the top of the turntable. A long shaft is connected through the top of the inner side of the feeding box. A guide frame is fixedly connected to one end of the long shaft. The short shaft is disposed through the inner side of the guide frame. Dispersion plates are fixedly connected at equal intervals to the outer side of the long shaft.
[0007] Optionally, one end of the rotating shaft is connected to one end of one of the grinding rollers in the grinding roller assembly via a transmission belt.
[0008] Optionally, a protective shell is fixedly connected to the left side of the feeding box, and the turntable, bevel gear set and guide frame are all arranged inside the protective shell.
[0009] Optionally, both ends of the feeding box are fixedly connected with connecting rings for the long shaft to pass through.
[0010] Optionally, elastic telescopic rods are fixedly connected to the four corners of the bottom of the screening plate, and the bottom of the elastic telescopic rods is connected to the inner wall of the grinding box through connecting blocks.
[0011] Optionally, cams are abutted on both sides of the bottom of the screening plate, and a guide shaft is fixedly connected to the middle of the cam. One end of the guide shaft passes through the grinding box and is connected to a drive motor B.
[0012] Optionally, the surface of the separator block abuts against the inner wall of the feeding chamber.
[0013] Optionally, the bottom of the grinding box is provided with a discharge port, and support feet are fixedly connected to the four corners of the bottom of the grinding box.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. This utility model, through the combined use of the dividing block and the feeding chamber, enables the space separated by the dividing block in the feeding chamber to control the amount of coating during the coating feeding and grinding process, preventing the coating from accumulating during grinding, thereby ensuring the grinding efficiency of the coating.
[0016] 2. By using the combination of the separator block and the dispersing plate, this utility model enables the dispersing plate to disperse the paint in the storage cavity when the separator block is rotating and feeding, ensuring the uniformity of the paint entering the two adjacent separator blocks, so that the paint can be more evenly distributed on the grinding roller group, thus ensuring the grinding efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model;
[0019] Figure 3 This is a side sectional view of the feeding box of this utility model;
[0020] Figure 4 This is a cross-sectional schematic diagram of the grinding box of this utility model.
[0021] In the diagram: 1 Grinding box, 2 Screening plate, 3 Grinding roller group, 4 Drive motor A, 5 Feeding box, 51 Feeding chamber, 52 Storage chamber, 6 Rotating shaft, 7 Separating block, 8 Bevel gear group, 9 Turntable, 10 Short shaft, 11 Long shaft, 12 Guide frame, 13 Dispersion plate, 14 Protective shell, 15 Cam, 16 Drive motor B. Detailed Implementation
[0022] 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.
[0023] This utility model provides, for example Figure 1-4 The paint grinding machine shown includes a grinding box 1 with a discharge port at the bottom. Two inclined plates are installed at the bottom of the grinding box 1 to allow the screened paint to flow through the inclined plates to the discharge port for collection. Support feet are fixedly connected to the four corners of the bottom of the grinding box 1. A screening plate 2 is installed inside the grinding box 1, and elastic telescopic rods are fixedly connected to the four corners of the bottom of the screening plate 2. Each elastic telescopic rod consists of a cylinder and a rod body. One end of the rod body is connected to the screening plate 2, and the other end is connected to the bottom of the inner wall of the cylinder via a spring. The bottom of the elastic telescopic rod is connected to the inner wall of the grinding box 1 via a connecting block. The elastic telescopic rod can support the screening plate 2 when it is vibrating and screening. Cams 15 are abutting on both sides of the bottom of the screening plate 2. A guide shaft is fixedly connected to the middle of the cam 15. One end of the guide shaft passes through the grinding box 1 and is connected to the drive motor B16. The bottom of the drive motor B16 is mounted on the outside of the grinding box 1 through the mounting bracket B. A grinding roller group 3 is installed on the upper side inside the grinding box 1. The grinding roller group 3 consists of two grinding rollers, and one end of the two grinding rollers is connected to a meshing gear. A drive motor A4 is fixedly connected to one end of the grinding roller group 3. The bottom of the drive motor A4 is mounted on the outside of the grinding box 1 through the mounting bracket A.
[0024] The feeding box 5 stores the paint. A feeding chamber 51 is located in the center of the inner side of the feeding box 5. A discharge port communicating with the grinding box 1 is located at the bottom of the feeding box 5, directly above the grinding roller assembly 3, allowing the paint to fall precisely between the grinding rollers 3. A storage chamber 52, connected to the feeding chamber 51, is located at the top of the feeding box 5. A rotating shaft 6 is installed inside the feeding chamber 51. One end of the rotating shaft 6 is connected to one end of one of the grinding rollers in the grinding roller assembly 3 via a transmission belt. Pulleys are located on both sides of the transmission belt, and the two pulleys are distributed and connected to the rotating shaft. On one of the grinding rollers in the shaft 6 and grinding roller group 3, partition blocks 7 are fixedly connected at equal intervals on the outer side of the rotating shaft 6. Bearings for rotating shaft 6 are provided on both sides of the feeding box 5. The surface of the partition block 7 abuts against the inner wall of the feeding cavity 51. A bevel gear group 8 is fixedly connected to one end of the rotating shaft 6. A turntable 9 is fixedly connected to the top of the bevel gear group 8. The bevel gear group 8 consists of two bevel gears. One bevel gear is connected to the central shaft of the turntable 9, and the other bevel gear is fixedly connected to one end of the rotating shaft 6. A short shaft 10 is fixedly connected to the eccentric part of the top of the turntable 9.
[0025] A long shaft 11 is connected through the top of the inner side of the feeding box 5. Both ends of the feeding box 5 are fixedly connected with connecting rings for the long shaft 11 to pass through. One end of the long shaft 11 is fixedly connected with a guide frame 12. A long strip-shaped movable groove is opened in the middle of the guide frame 12. A short shaft 10 is installed through the inner side of the guide frame 12 and can move in the movable groove. Dispersion plates 13 are fixedly connected at equal intervals on the outer side of the long shaft 11. A protective shell 14 is fixedly connected to the left side of the feeding box 5. The turntable 9, the bevel gear set 8 and the guide frame 12 are all located inside the protective shell 14.
[0026] The implementation principle of a paint grinding machine in this embodiment is as follows: paint additive raw materials are poured into the feeding box 5, the drive motor A4 is started, the drive motor A4 drives the grinding roller group 3 to rotate, the rotating shaft 6 drives the separator block 7 to rotate, the paint falls between two adjacent separator blocks 7, and then falls above the grinding roller group 3. When the rotating shaft 6 rotates, it drives the turntable 9 to rotate through the bevel gear group 8. The short shaft 10 on the turntable 9 drives the guide frame 12 to move laterally through rotation, so that the dispersing plate 13 disperses the paint in the storage cavity 52 of the feeding box 5, ensuring the uniformity of the paint entering between the two adjacent separator blocks 7.
[0027] After the paint is ground, it falls onto the sieve plate 2. The drive motor B16 is started, and the cam 15 rotates, causing the sieve plate 2 to vibrate, thus allowing the paint to fall and be collected.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A paint grinding machine, characterized in that, include: Grinding box (1), a screening plate (2) is installed inside the grinding box (1), a grinding roller group (3) is installed on the upper side inside the grinding box (1), and a drive motor A (4) is fixedly connected to one end of the grinding roller group (3). A feeding box (5) has a feeding cavity (51) in the middle of its inner side. The bottom of the feeding box (5) has a discharge port that communicates with the grinding box (1). The top of the feeding box (5) has a storage cavity (52) that communicates with the feeding cavity (51). A rotating shaft (6) is installed on the inner side of the feeding cavity (51). A partition block (7) is fixedly connected at equal intervals on the outer side of the rotating shaft (6). A bevel gear set (8) is fixedly connected to one end of the rotating shaft (6). A turntable (9) is fixedly connected to the top of the bevel gear set (8). A short shaft (10) is fixedly connected to the eccentric part of the top of the turntable (9). The top of the inner side of the feeding box (5) is connected to a long shaft (11), one end of the long shaft (11) is fixedly connected to a guide frame (12), the short shaft (10) is disposed inside the guide frame (12), and the outer side of the long shaft (11) is fixedly connected to a dispersion plate (13) at equal intervals.
2. The coating grinding machine according to claim 1, characterized in that: One end of the rotating shaft (6) is connected to one end of one of the grinding rollers in the grinding roller group (3) via a transmission belt.
3. A coating grinding machine according to claim 1, characterized in that: The left side of the feeding box (5) is fixedly connected to a protective shell (14), and the turntable (9), bevel gear set (8) and guide frame (12) are all located inside the protective shell (14).
4. A coating grinding machine according to claim 1, characterized in that: Both ends of the feeding box (5) are fixedly connected with connecting rings through which the long shaft (11) passes.
5. A coating grinding machine according to claim 1, characterized in that: The four corners of the bottom of the screening plate (2) are all fixedly connected with elastic telescopic rods, and the bottom of the elastic telescopic rods is connected to the inner wall of the grinding box (1) through a connecting block.
6. A coating grinding machine according to claim 1, characterized in that: The bottom sides of the screening plate (2) are abutted by cams (15), and a guide shaft is fixedly connected to the middle of the cam (15). One end of the guide shaft passes through the grinding box (1) and is connected to the drive motor B (16).
7. A coating grinding machine according to claim 1, characterized in that: The surface of the separator (7) abuts against the inner wall of the feeding chamber (51).
8. A coating grinding machine according to claim 1, characterized in that: The bottom of the grinding box (1) is provided with a discharge port, and the four corners of the bottom of the grinding box (1) are fixedly connected with support feet.