A painting system

The automated painting technology of the painting system has solved the problem of low painting efficiency of brake pads, and improved the uniformity of brake pad coating and production efficiency.

CN224586199UActive Publication Date: 2026-08-04WUXI XUJIE PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI XUJIE PRECISION MASCH CO LTD
Filing Date
2025-08-21
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In the existing technology, the paint coating efficiency of brake pads is low, and the thickness of the paint layer on the surface is uneven, which affects production efficiency.

Method used

The system employs a painting system, including a mounting frame, a feeding device, a liquid application device, and a pad printing device. Through the cooperation of a robotic arm and a cylinder, the brake pads are automatically painted, ensuring the consistency of coating thickness and position for each brake pad.

Benefits of technology

It enables automated painting of brake pads, saving labor costs, improving production efficiency, ensuring coating uniformity, reducing the possibility of missed coatings or uneven thickness, and improving painting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a painting system applied to the field of brake pad painting, which comprises a mounting frame, a feeding device for feeding brake pads and a liquid feeding device for feeding paint liquid are arranged on the mounting frame, and a transfer printing device for transferring the paint liquid at the liquid outlet end of the liquid feeding device to the brake pad is further arranged on the mounting frame. The application has the technical effect that when painting operation is needed, the feeding device is started to feed the brake pad, the transfer printing device is started to transfer the paint liquid at the liquid outlet end of the liquid feeding device to the brake pad of the feeding device, automatic painting of the brake pad is realized, the labor cost is saved, time and labor are saved, and the production efficiency of the brake pad is improved.
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Description

Technical Field

[0001] This application relates to the field of brake pad coating technology, and in particular to a coating system. Background Technology

[0002] Brake pads, also known as brake discs, are one of the key safety components in a car's braking system.

[0003] Before installing the muffler, the brake pads need to be primed. In the relevant technology, the operator holds the brake pad and then applies a special brake paint evenly and thinly to the surface of the brake pad using a paint brush.

[0004] The above-mentioned method of manually applying primer to the outer surface of brake pads by operators results in uneven paint thickness, which is time-consuming and labor-intensive, leading to low paint application efficiency and affecting brake pad production efficiency. Summary of the Invention

[0005] To address the problem of uneven paint thickness, time-consuming and labor-intensive application of primer to brake pads, which leads to low painting efficiency and impacts brake pad production, this application provides a painting system with the following technical solution: It includes a mounting frame, on which are a feeding device for conveying brake pads and a liquid feeding device for conveying paint. The mounting frame also includes a transfer printing device for transferring the paint from the liquid feeding device to the brake pads.

[0006] In one specific implementation, the pad printing device includes a pad printing machine mounted on a mounting frame, the output end of the pad printing machine having a pad printing head, the end face of the pad printing head facing away from the pad printing machine corresponding to a brake pad on a feeding device.

[0007] In one specific implementation, the liquid supply device includes a liquid storage unit installed on the pad printing machine for storing liquid paint, and a liquid replenishment unit installed on the mounting frame for replenishing the liquid storage unit with liquid paint. The liquid replenishment unit includes a liquid injection rack installed on the mounting frame, the liquid injection rack being located on one side of the pad printing machine, the liquid injection rack having a liquid injection pipe connected to the liquid inlet end of the liquid storage unit, the liquid injection rack having a liquid storage box connected to the liquid injection pipe, and the liquid injection rack having a solenoid valve for controlling the opening and closing of the liquid injection pipe.

[0008] In one specific implementation, the feeding device includes a conveyor mounted on a mounting frame, with a plurality of brake pads sequentially mounted on the conveyor. The conveyor is provided with a separator, a buffer, and a limiting part in sequence along the conveying direction of the conveyor belt. The brake pads located on the limiting part correspond to the pad printing head of the pad printing machine.

[0009] In one specific implementation, the dividing section includes a dividing cylinder mounted on the conveyor, the output end of which is provided with a dividing block. When the brake pads on the conveyor move to the dividing section, the dividing block blocks the brake pads located in the dividing section.

[0010] In one specific implementation, the buffer section includes a buffer cylinder mounted on the conveyor, and the output end of the buffer cylinder is provided with a buffer stop. When the brake pads on the conveyor move to the buffer section, the buffer stop blocks the brake pads located in the buffer section.

[0011] In one specific implementation, the limiting part includes a first clamping cylinder and a second clamping cylinder disposed on the conveyor. The output end of the first clamping cylinder is provided with a first bending plate, and the output end of the second clamping cylinder is provided with a second bending plate. The brake pad on the conveyor is located between the first bending plate and the second bending plate and is in contact with the first bending plate and the second bending plate respectively.

[0012] In one specific implementation, the conveyor is provided with a fixed frame, a sliding frame is slidably connected to the fixed frame, and a lifting frame is slidably connected to the sliding frame. The first clamping cylinder is disposed on the lifting frame. A first fixing rod is threaded through and connected to the sliding frame, with the end of the first fixing rod facing the fixed frame abutting against the fixed frame. A second fixing rod is threaded through and connected to the lifting frame, with the end of the second fixing rod facing the sliding frame abutting against the sliding frame.

[0013] In one specific implementation, the conveyor is provided with two mounting blocks facing each other, and each of the two mounting blocks is provided with a baffle. Brake pads are located between the two baffles and are in contact with the two baffles respectively.

[0014] In one specific implementation scheme, the baffle has an oblong hole, an adjusting screw passes through the oblong hole, and the mounting block has an adjusting hole on the surface facing the baffle that matches the adjusting screw. The end of the adjusting screw facing the mounting block is threaded into the adjusting hole.

[0015] In summary, this application has the following beneficial technical effects: when it is necessary to paint the brake pads, the feeding device is started to transport the brake pads, and the pad printing device is started to transfer the paint liquid from the liquid outlet of the liquid feeding device to the brake pads of the feeding device, thereby realizing automatic painting of the brake pads, saving labor costs, saving time and effort, and improving the production efficiency of brake pads. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a schematic diagram illustrating the structure of a pad printing machine in the embodiments of this application.

[0018] Figure 3 yes Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 4 yes Figure 2 Enlarged diagram of point B in the middle.

[0020] Figure 5 This is a schematic diagram illustrating the structure of the baffle in the embodiments of this application.

[0021] Reference numerals: 1. Mounting frame; 2. Pad printing machine; 3. Pad printing head; 4. Liquid injection rack; 5. Liquid injection tube; 6. Liquid storage box; 7. Solenoid valve; 8. Conveyor; 9. Separator; 10. Buffer; 11. Limiting part; 12. Separator cylinder; 13. Separator block; 14. Buffer cylinder; 15. First clamping cylinder; 16. Second clamping cylinder; 17. First bending plate; 18. Second bending plate; 19. Fixing frame; 20. Sliding frame; 21. Lifting frame; 22. First fixing rod; 23. Second fixing rod; 24. Mounting block; 25. Baffle; 26. Waist-shaped hole; 27. Adjusting screw; 28. Pad printing plate; 29. ​​Liquid outlet block; 30. Brake pad; 31. Oil cup. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses a painting system.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The painting system includes a mounting frame 1, which is equipped with a feeding device for conveying brake pads 30 and a coating device for conveying paint. The mounting frame 1 also includes a transfer printing device for transferring the paint from the coating device to the brake pads 30 on the feeding device. Therefore, when painting the brake pads 30 is required, the feeding device is activated to convey the brake pads 30, and the transfer printing device is activated to transfer the paint from the coating device to the brake pads 30 on the feeding device, achieving automatic painting of the brake pads 30. This saves labor costs, time, and effort, and improves the production efficiency of the brake pads 30. The transfer printing device can also precisely control the amount of paint, ensuring that the coating thickness and position of each brake pad 30 are completely consistent, reducing the possibility of missed areas or uneven thickness due to differences in manual operation, and improving the painting quality of the brake pad surface.

[0025] Reference Figure 2 , Figure 3 and Figure 4 The pad printing device includes a pad printing machine 2 mounted on a mounting frame 1. A pad printing head 3 is mounted on the output end of the pad printing machine 2, and the end face of the pad printing head 3 facing away from the pad printing machine 2 corresponds to a brake pad 30 on the feeding device. The liquid feeding device includes a liquid storage unit mounted on the pad printing machine 2 for storing paint liquid. A liquid replenishment unit is mounted on the mounting frame 1 for replenishing paint liquid to the liquid storage unit. The liquid replenishment unit includes a liquid injection rack 4 mounted on the mounting frame 1, located on one side of the pad printing machine 2. In this embodiment, the liquid injection rack 4 is entirely mounted on the outside of the mounting frame 1 for easy replenishment by the operator. A liquid injection pipe 5 connected to the liquid inlet end of the liquid storage unit is mounted on the liquid injection rack 4. A liquid storage box 6 connected to the liquid injection pipe 5 is mounted on the liquid injection rack 4. In this embodiment, the liquid storage box 6 is made of transparent material to facilitate timely observation of the remaining paint liquid in the liquid storage box 6 by the operator.

[0026] In this embodiment, the liquid storage unit includes an ink cup 31 mounted on a pad printing machine 2. The outlet end of the liquid injection pipe 5 is connected to the inlet end of the ink cup 31. A first four-axis robotic arm is mounted on the pad printing machine 2, and the ink cup 31 is mounted on the output end of the first four-axis robotic arm. An outlet block 29 is mounted on the ink cup 31, and an outlet groove is formed on the surface of the outlet block 29 facing away from the ink cup 31. The outlet groove is connected to the outlet end of the ink cup 31. The pad printing machine 2 is equipped with a device that is compatible with the outlet block 29. The corresponding pad printing plate 28 has several tiny grooves on its surface facing the ink dispensing block 29. A slight gap exists between the end face of the ink dispensing block 29 away from the ink cup 31 and the end face of the pad printing plate 28 facing the ink cup 31. This slight gap allows the paint in the dispensing tank to flow into the tiny grooves of the pad printing plate 28 while preventing excessive overflow when the first four-axis robot moves the ink cup 31 and the ink dispensing block 29, thus achieving precise control of the paint dispensing amount. A second four-axis robot is also installed on the pad printing machine 2. A pad printing frame is installed at the output end of the second four-axis robot, and the pad printing head 3 is mounted on the pad printing frame. In this embodiment, the pad printing head 3 is made of rubber.

[0027] The injection rack 4 is also equipped with a solenoid valve 7 for controlling the opening and closing of the injection tube 5. When the sensor in the oil cup 31 detects that the paint is exhausted, the control system sends a signal to the solenoid valve 7 to open the solenoid valve 7 and make the injection tube 5 unobstructed. The paint flows from the storage box into the oil cup 31 through the injection tube 5. The first four-axis robot drives the oil cup 31 to move along the direction of the printing plate 28. As the oil cup 31 and the liquid outlet block 29 move, the paint flows through the liquid outlet groove into several tiny grooves in the printing plate 28. The second four-axis robot is activated to drive the printing head 3 to pick up the paint in several grooves in the printing plate 28 and move the printing head 3 to the position corresponding to the paint application area of ​​the brake pad 30. The printing head 3 presses down and presses against the brake pad 30 to achieve paint application.

[0028] Reference Figure 2 , Figure 3 and Figure 4The feeding device includes a conveyor 8 mounted on a mounting frame 1. Several brake pads 30 are sequentially mounted on the conveyor 8. Along the conveying direction of the conveyor belt, the conveyor 8 is sequentially equipped with a separator 9, a buffer section 10, and a limiting section 11. The brake pads 30 located on the limiting section 11 correspond to the pad printing head 3 of the pad printing machine 2. The separator 9 includes a separator cylinder 12 mounted on the conveyor 8. A separator block 13 is installed at the output end of the separator cylinder 12. When the brake pads 30 on the conveyor 8 move to the separator 9, the separator block 13 blocks the brake pads 30 located in the separator 9. The buffer section 10 includes a buffer cylinder 14 mounted on the conveyor 8. A buffer block is installed at the output end of the buffer cylinder 14. When the brake pads 30 on the conveyor 8 move to the buffer section 10, the buffer block blocks the brake pads 30 located in the buffer section 10. The limiting part 11 includes a first clamping cylinder 15 and a second clamping cylinder 16 disposed on the conveyor 8. A first bending plate 17 is installed at the output end of the first clamping cylinder 15, and a second bending plate 18 is installed at the output end of the second clamping cylinder 16. The brake pad 30 on the conveyor 8 is located between the first bending plate 17 and the second bending plate 18 and is in contact with the first bending plate 17 and the second bending plate 18 respectively.

[0029] Therefore, the conveyor 8 is started, and several brake pads 30 are conveyed along the conveyor 8. When the brake pads 30 move to the separator 9, the separator cylinder 12 is activated, causing the separator block 13 at the output end of the separator cylinder 12 to press down. The separator block 13 contacts the side of the brake pad 30, blocking the brake pad 30. At this time, the conveyor 8 continues to convey, and several brake pads 30 are arranged in sequence, waiting to enter the buffer section 10. The separator cylinder 12 is activated, causing the separator block 13 at the output end of the separator cylinder 12 to rise, allowing a single brake pad 30 to enter the buffer section 10. After a single brake pad 30 enters the buffer section 10, the separator cylinder 12 causes the separator block 13 to press down, continuing to block the subsequent sequentially arranged brake pads 30. The buffer cylinder 14 is activated, causing the buffer block at the output end of the buffer cylinder 14 to press down. The buffer block contacts the side of the brake pad 30, blocking the single brake pad 30 located in the buffer section 10. Brake pad 30 is confined within buffer section 10. After the brake pad 30 in limiting section 11 is painted, buffer cylinder 14 is activated to raise the buffer stop. At this time, the single brake pad 30 located in buffer section 10 is transported to dividing section 9. After the single brake pad 30 enters dividing section 9, buffer cylinder 14 drives the buffer stop to press down to continue blocking the subsequent single brake pad 30 to be painted. Then, the first clamping cylinder 15 and the second clamping cylinder 16 are activated to drive the first bending plate 17 and the second bending plate 18 to press down respectively, pressing the brake pad 30 between the first bending plate 17 and the second bending plate 18 and the conveyor 8, thereby fixing the position of the brake pad 30 located in limiting section 11. At this time, the conveyor 8 temporarily stops conveying, and pad printing machine 2 starts to paint the brake pad 30 located in limiting section 11.

[0030] Reference Figure 2 and Figure 5 A fixed frame 19 is bolted to the conveyor 8. A sliding frame 20 is slidably connected to the fixed frame 19. A lifting frame 21 is slidably connected to the sliding frame 20. A first clamping cylinder 15 is mounted on the lifting frame 21. A first fixing rod 22 is threaded through and connected to the sliding frame 20, with one end of the first fixing rod 22 abutting against the fixed frame 19. A second fixing rod 23 is threaded through and connected to the lifting frame 21, with one end of the second fixing rod 23 abutting against the sliding frame 20. Therefore, the sliding frame 20 can slide along the fixed frame 19, facilitating the adjustment of the horizontal position of the first clamping cylinder 15. The lifting frame 21 slides along the sliding frame 20, facilitating the adjustment of the vertical position of the first clamping cylinder 15. After adjustment to a suitable position, the cylinders are fixed by the first fixing rod 22 and the second fixing rod 23, respectively. The second clamping cylinder 16 can also be set with reference to the first clamping cylinder 15, so as to realize the adjustable position of the first clamping cylinder 15 and the second clamping cylinder 16, which is more flexible and easy to adapt to different models of brake pads 30.

[0031] Reference Figure 2 and Figure 5 Two mounting blocks 24 are mounted opposite each other on the conveyor 8. Each mounting block 24 has a baffle 25. Brake pads 30 are located between and in contact with the two baffles 25. A slotted hole 26 is formed in each baffle 25, and an adjusting screw 27 passes through it. An adjusting hole matching the size of the adjusting screw 27 is formed on the surface of the mounting block 24 facing the baffle 25. One end of the adjusting screw 27 facing the mounting block 24 is threaded into the adjusting hole. The slotted hole 26 facilitates adjustment of the position of the baffle on the mounting block 24, thus facilitating the adaptation of different models of brake pads 30. The baffle limits the position of the brake pads 30, reducing the possibility of positional displacement during the printing process.

[0032] The implementation principle of this application embodiment is as follows: When it is necessary to paint the brake pads 30, the conveyor 8 is started, and several brake pads 30 are conveyed along the conveyor 8. When the brake pads 30 move to the separator 9, the separator cylinder 12 is started, causing the separator block 13 at the output end of the separator cylinder 12 to press down. The separator block 13 contacts the side of the brake pad 30, blocking the brake pad 30. At this time, the conveyor 8 continues to convey, and several brake pads 30 are arranged in sequence to wait to enter the buffer section 10. The separator cylinder 12 is started, causing the separator block 13 at the output end of the separator cylinder 12 to rise, allowing a single brake pad 30 to enter the buffer section 10. After a single brake pad 30 enters the buffer section 10, the separator cylinder 12 causes the separator block 13 to press down, continuing to block the subsequent sequentially arranged brake pads 30. The buffer cylinder 14 is started, causing the buffer block at the output end of the buffer cylinder 14 to press down. The buffer block contacts the side of the brake pad 30, restricting the single brake pad 30 located in the buffer section 10 within the buffer. Inside section 10, the conveyor 8 continues to transport the brake pads. After the brake pads 30 in the limiting section 11 are painted and are in an idle state, the buffer cylinder 14 is activated to raise the buffer block. At this time, the single brake pad 30 located in the buffer section 10 is transported to the separating section 9. After the single brake pad 30 enters the separating section 9, the buffer cylinder 14 drives the buffer block to press down to continue blocking the subsequent single brake pads 30 to be painted. Then, the first clamping cylinder 15 and the second clamping cylinder 16 are activated to drive the first bending plate 17 and the second bending plate 18 to press down respectively, pressing the brake pad 30 between the first bending plate 17 and the second bending plate 18 and the conveyor 8, thereby fixing the position of the brake pad 30 located in the limiting section 11. At this time, the conveyor 8 temporarily stops transporting, and the pad printing machine 2 starts to paint the brake pads 30 located in the limiting section 11.

[0033] Paint flows from the storage box into the ink cup 31 through the injection pipe 5. A first four-axis robotic arm drives the ink cup 31 to move along the printing plate 28. As the ink cup 31 and the dispensing block 29 move, the paint flows through the dispensing groove into several tiny grooves on the printing plate 28. A second four-axis robotic arm then drives the printing head 3 to pick up the paint from these grooves and moves it to the position corresponding to the area on the brake pad 30 to be painted. The printing head 3 then presses down onto the brake pad 30 to achieve paint application. Through the feeding device, the liquid filling device, and the printing device, labor costs are saved, time and effort are reduced, and the production efficiency of the brake pads 30 is improved. The printing device can also precisely control the amount of paint, ensuring that the coating thickness and position of each brake pad 30 are completely consistent, reducing the possibility of missed coatings or uneven thickness due to differences in manual operation, and improving the coating quality of the brake pad 30 surface.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A painting system, characterized in that: The device includes a mounting frame (1), which is provided with a feeding device for conveying brake pads (30) and a liquid feeding device for conveying paint. The mounting frame (1) is also provided with a transfer printing device for transferring the paint from the liquid outlet of the liquid feeding device to the brake pads (30).

2. The painting system according to claim 1, characterized in that: The pad printing device includes a pad printing machine (2) mounted on a mounting frame (1). The output end of the pad printing machine (2) is provided with a pad printing head (3). The end face of the pad printing head (3) facing away from the pad printing machine (2) corresponds to the brake pad (30) on the feeding device.

3. The painting system according to claim 2, characterized in that: The liquid feeding device includes a liquid storage unit installed on the pad printing machine (2) for storing liquid paint, and a liquid replenishment unit installed on the mounting frame (1) for replenishing liquid paint to the liquid storage unit. The liquid replenishment unit includes a liquid injection rack (4) installed on the mounting frame (1). The liquid injection rack (4) is located on one side of the pad printing machine (2). The liquid injection rack (4) is provided with a liquid injection pipe (5) connected to the liquid inlet end of the liquid storage unit. The liquid injection rack (4) is provided with a liquid storage box (6) connected to the liquid injection pipe (5). The liquid injection rack (4) is provided with a solenoid valve (7) for controlling the opening and closing of the liquid injection pipe (5).

4. The painting system according to claim 2, characterized in that: The feeding device includes a conveyor (8) mounted on a mounting frame (1), and a number of brake pads (30) are mounted on the conveyor (8) in sequence. The conveyor (8) is provided with a partition (9), a buffer (10) and a limiting part (11) in sequence along the conveying direction of the conveyor belt. The brake pads (30) located on the limiting part (11) correspond to the pad printing head (3) of the pad printing machine (2).

5. The painting system according to claim 4, characterized in that: The partition (9) includes a partition cylinder (12) mounted on the conveyor (8), and the output end of the partition cylinder (12) is provided with a partition block (13); when the brake pad (30) on the conveyor (8) moves to the partition (9), the partition block (13) blocks the brake pad (30) located in the partition (9).

6. The painting system according to claim 4, characterized in that: The buffer section (10) includes a buffer cylinder (14) disposed on the conveyor (8), and the output end of the buffer cylinder (14) is provided with a buffer stop; when the brake pad (30) on the conveyor (8) moves to the buffer section (10), the buffer stop blocks the brake pad (30) located in the buffer section (10).

7. The painting system according to claim 4, characterized in that: The limiting part (11) includes a first clamping cylinder (15) and a second clamping cylinder (16) disposed on the conveyor (8). The output end of the first clamping cylinder (15) is provided with a first bending plate (17), and the output end of the second clamping cylinder (16) is provided with a second bending plate (18). The brake pad (30) on the conveyor (8) is located between the first bending plate (17) and the second bending plate (18) and is in contact with the first bending plate (17) and the second bending plate (18) respectively.

8. The painting system according to claim 7, characterized in that: The conveyor (8) is provided with a fixed frame (19), a sliding frame (20) is slidably connected to the fixed frame (19), a lifting frame (21) is slidably connected to the sliding frame (20), the first clamping cylinder (15) is set on the lifting frame (21), a first fixing rod (22) is threaded through and threadedly connected to the sliding frame (20), the end of the first fixing rod (22) facing the fixed frame (19) abuts against the fixed frame (19), a second fixing rod (23) is threaded through and threadedly connected to the lifting frame (21), the end of the second fixing rod (23) facing the sliding frame (20) abuts against the sliding frame (20).

9. The painting system according to claim 4, characterized in that: The conveyor (8) has two mounting blocks (24) facing each other, and each of the two mounting blocks (24) has a baffle (25). The brake pads (30) are located between the two baffles (25) and are in contact with the two baffles (25).

10. The painting system according to claim 9, characterized in that: The baffle (25) has a waist-shaped hole (26) and an adjusting screw (27) passes through the waist-shaped hole (26). The mounting block (24) has an adjusting hole on the surface facing the baffle (25) that matches the adjusting screw (27). One end of the adjusting screw (27) facing the mounting block (24) is threaded into the adjusting hole.