Brake disc surface coating equipment and coating method

Abstract

The present invention belongs to the technical field of spraying devices, in particular to a brake disc surface coating equipment and coating method. In view of the problems of paint diffusion into the surrounding environment, uneven spraying of the brake disc and uneven heating of the brake disc during drying in the existing spraying process, the following scheme is proposed: a brake disc surface coating equipment includes a workbench, two mounting plates are fixed on the top of the workbench, a chain plate conveyor belt is provided between the two mounting plates, a plurality of fixed columns are fixed on the top of the chain plate conveyor belt, the tops of the plurality of fixed columns are rotatably connected to a tooling base plate, and a brake disc body is placed on the top of the tooling base plate. The present invention can protect the chain plate conveyor belt during spraying to prevent the chain plate conveyor belt from adhering to the paint, and can also block the paint through the third baffle to prevent the paint from spilling to the outside. The brake disc body can be evenly sprayed without dead angles through the reciprocating swing of the liquid pipe and the rotation of the tooling base plate.

Description

Technical Field

[0001] The present invention relates to the technical field of spray devices, and in particular to a brake disc surface coating coating device and a coating method. Background Art

[0002] The brake caliper clamps the brake disc to generate braking force. When you apply the brakes, it is this clamping action that slows down or stops the vehicle. The surface of the brake disc requires a coating. A proper coating process can significantly improve the disc's wear resistance, high temperature resistance, and corrosion resistance, thereby extending its service life and enhancing the overall performance of the brake system.

[0003] The existing technology still has the following shortcomings in the spraying process:

[0004] 1. With current spray coating technology, when the spray nozzle applies paint to the surface of the brake disc on the conveyor belt, the paint tends to spread into the surrounding environment, which not only pollutes the environment but also poses a threat to the health of workers. In addition, the paint tends to adhere to the conveyor belt. Over time, the accumulated paint layer on the conveyor belt will gradually thicken, thereby interfering with its normal operation.

[0005] 2. When spraying, some parts of the brake disc cannot be sprayed evenly because the nozzle is facing a fixed position;

[0006] 3. During the brake disc drying process, the brake disc is directly placed in the drying device, resulting in uneven heating of the brake disc, which makes it impossible for the coating to solidify evenly on the surface of the brake disc.

[0007] In response to the above problems, the present invention document proposes a brake disc surface coating coating device and coating method. Summary of the Invention

[0008] The purpose of the present invention is to solve the shortcomings of the existing spraying process, such as paint diffusion into the surrounding environment, paint adhesion to the conveyor belt, uneven spraying of the brake disc, and uneven heating of the brake disc during drying, and to propose a brake disc surface coating coating equipment and coating method.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A brake disc surface coating equipment includes a workbench, two mounting plates are fixed on the top of the workbench, a chain plate conveyor belt is provided between the two mounting plates, a plurality of fixing columns are fixed on the top of the chain plate conveyor belt, the tops of the plurality of fixing columns are rotatably connected to a tooling base plate, and a brake disc body is placed on the top of the tooling base plate;

[0011] It also includes a gantry fixed on the top of the workbench, the chain plate conveyor belt passes through the gantry, a plurality of tooling top plates are provided in the gantry, and the tooling top plates cooperate with the brake disc body and are sleeved on the top of the brake disc body, one side of the gantry is rotatably connected to a liquid pipe through a connecting seat, a plurality of nozzles are fixed on the side of the liquid pipe close to the gantry for spraying a coating on the brake disc body, a liquid injection hose is fixed at one end of the liquid pipe, and the liquid injection hose is connected to an external paint source for injecting paint into the liquid pipe;

[0012] It also includes a drying box fixedly arranged above the two mounting plates, the drying box is located above the chain plate conveyor belt, and the drying box is located on the side of the gantry away from the liquid pipe;

[0013] The matching structure is set in the gantry and is used to control the downward movement of multiple tooling top plates and put them on the top of the brake disc body, thereby shielding the position on the top of the brake disc body that does not need to be sprayed;

[0014] The spraying structure is set in the gantry and is used to drive the liquid pipe to swing back and forth while driving the brake disc body to rotate, so that the spray head can spray the brake disc body evenly without dead angles;

[0015] The shielding structure is set in the gantry to prevent the paint from spilling during the spraying process and prevent the paint from adhering to the chain conveyor belt;

[0016] The drying structure is arranged in the drying box and is used to dry the brake disc body after spraying.

[0017] In one possible design, the matching structure includes two multi-stage push rods fixedly passing through the gantry, the top ends of the output shafts of the two multi-stage push rods are fixed with the same first connecting plate, the bottom of the first connecting plate is rotatably connected to multiple rotating rods, the bottom ends of the multiple rotating rods all pass through the gantry and are fixedly connected to the top of the corresponding tooling top plate, for controlling the lifting and lowering of the tooling top plate, and the top inner walls of the multiple tooling top plates are fixedly embedded with pressure sensors; the output shaft of the multi-stage push rod drives the tooling top plate to move downward through the first connecting plate and the rotating rod and is sleeved on the top of the brake disc body, exposing the part of the brake disc body to be painted, and the pressure sensor fixedly embedded on the top inner wall of the tooling top plate can detect the pressure exerted by the tooling top plate on the brake disc body, so as to facilitate the tooling top plate to drive the brake disc body to rotate in the later stage.

[0018] In a possible design, the spraying structure includes a plurality of second synchronous wheels rotating on the top of the gantry, and the plurality of second synchronous wheels are respectively slidably sleeved on the outer walls of the corresponding rotating rods. The top of the gantry is rotatably connected to a plurality of third synchronous wheels. A driving motor is fixed to one side of the gantry through a frame, and a first synchronous wheel is fixed to the output shaft of the driving motor. The first synchronous wheel and the plurality of second synchronous wheels and the third synchronous wheels are connected through a synchronous belt transmission. The cooperation between the second synchronous wheel and the rotating rod can drive the tooling top plate to rotate; the first synchronous wheel is driven to rotate by the driving motor, and the cooperation between the first synchronous wheel, the second synchronous wheel, the third synchronous wheel and the synchronous belt can drive the rotating rod and the tooling top plate to rotate synchronously, and the tooling top plate drives the brake disc body to rotate synchronously, so as to facilitate uniform spraying without dead angles on the surface of the brake disc body.

[0019] In a possible design, the spraying structure also includes a plurality of first bevel gears rotating on the inner wall of the top of the gantry, and the plurality of first bevel gears are respectively slidably sleeved on the outer wall of the rotating rod. The inner wall of the top of the gantry is fixed with a plurality of first bases and second bases, and the adjacent second bases correspond to the positions of the first bases. A rotating cylinder is rotated and penetrated in the first base, and a second bevel gear meshing with the first bevel gear is fixed at one end of the rotating cylinder. A slider is fixed in the rotating cylinder, and a sliding rod is slidably penetrated in the second base, and one end of the sliding rod penetrates the slider and extends into the rotating cylinder. The outer wall of the sliding rod is provided with a reciprocating spiral groove section, and the sliding rod passes through the reciprocating spiral groove section. Used in conjunction with the slider, when the rotating cylinder rotates, the sliding rod is driven to move back and forth through the cooperation of the slider and the reciprocating spiral groove segment, and a plurality of shift rods are fixed on the top of the liquid pipe, and the top end of the shift rod is rotatably connected to the end of the sliding rod away from the rotating cylinder through a connecting rod, and the sliding rod drives the liquid pipe to swing back and forth through the connecting rod; the rotating rod drives the rotating cylinder and the slider to rotate through the cooperation of the first bevel gear and the second bevel gear, and the slider drives the sliding rod to move back and forth through the cooperation with the reciprocating spiral groove segment, and the sliding rod drives the liquid pipe to swing back and forth through the cooperation of the connecting rod and the shift rod, and then the spray head swings to evenly spray the rotating brake disc body, ensuring the uniformity of the spraying, and can spray the area to be sprayed of the brake disc body in all directions.

[0020] In one possible design, the shielding structure includes two first baffles fixed to the inner walls on both sides of the gantry away from each other, multiple second baffles are provided between the two first baffles, multiple tooling bottom plates are located between two adjacent second baffles and between adjacent second baffles and first baffles, first U-shaped frames are fixed on both sides of the tops of the two first baffles, the bottom ends of the two first U-shaped frames on the same side are fixedly connected to the tops of adjacent second baffles, two second U-shaped frames are fixed between two adjacent second baffles, the first baffle and the second baffle can be formed into a whole through the first U-shaped frame and the second U-shaped frame, the gantry is slidably connected to a third baffle on the side close to the drying box, and the third baffle is away from the drying box. A plurality of second connecting plates are fixed on one side of the box, and the plurality of second connecting plates are rotatably sleeved on the outer walls of the corresponding rotating rods, and the rotating rods drive the third baffle to rise and fall, which is used to block the paint sprayed by the nozzle; when the brake disc body moves to the bottom of the gantry, the first baffle and the second baffle can just be close to each other with the adjacent tooling base plate, and the brake disc body is located above the first baffle and the second baffle. Therefore, during spraying, the paint adheres to the first baffle and the second baffle, preventing the paint from adhering to the chain conveyor belt and affecting the normal operation of the chain conveyor belt. The rotating rod drives the third baffle to move downward through the second connecting plate to block the side of the gantry close to the drying box. In the later spraying process, the third baffle can prevent the paint from spilling to the outside.

[0021] In a possible design, the drying structure includes a plurality of carbon wire resistance heating plates fixed on the inner walls of the two sides of the drying box away from each other, a plurality of fans are provided on the top of the drying box, and a material opening is provided on both sides of the drying box. A fourth baffle is slidably connected to the side of the drying box close to the gantry, which is used to block the adjacent material openings, and a baffle is rotatably connected to the material opening on the side away from the gantry, which is used to block the adjacent material openings. The baffle cooperates with the fourth baffle to prevent the hot air in the drying box from escaping; the chain plate conveyor belt will spray The brake disc body is finally transported to the drying box, and then the third baffle and the fourth baffle are moved down and reset, and at the same time one side of the gantry and the material port are closed, which is used for subsequent spraying and prevents the hot air in the drying box from escaping; then the carbon wire heating plate is started to heat the air in the drying box, and the fan injects the outside air into the drying box, thereby drying the brake disc body from top to bottom until the chain plate conveyor belt discharges the brake disc body from the drying box. In addition, when discharging, the baffle can close the adjacent material port in time to prevent hot air from escaping.

[0022] In one possible design, a plurality of connecting rods are fixed to the side of the fourth baffle close to the gantry, and the plurality of connecting rods are fixedly connected to the third baffle; the third baffle and the fourth baffle are raised and lowered synchronously, so that the brake disc body after spraying can enter the drying box for drying, and at the same time, the next batch of brake disc bodies can enter the gantry for re-spraying.

[0023] In a possible design, the spacing between two adjacent second baffles and the spacing between adjacent first baffles and second baffles are smaller than the diameter of the brake disc body, so as to receive the paint sprayed by the nozzle; during the spraying process, the cooperation between the first baffle and the second baffle can shield the chain conveyor belt, thereby preventing the paint sprayed by the nozzle from falling onto the chain conveyor belt.

[0024] In one possible design, a plurality of rubber strips are provided in the drying box, and the rubber strips touch one side of the tooling base plate, and the friction between the tooling base plate and the rubber strips drives the tooling base plate to rotate, and a plurality of L-shaped rods are fixed to one side of the rubber strips, and the top ends of the plurality of L-shaped rods are fixedly connected to the top inner wall of the drying box; when the chain conveyor belt drives the tooling base plate and the brake disc body to move in the drying box, the rubber strips touch the tooling base plate, and the friction between the tooling base plate and the rubber strips drives the tooling base plate and the brake disc body to rotate, thereby enabling the brake disc body to be evenly heated in the drying box, ensuring that the paint on the surface of the brake disc body is evenly cured.

[0025] In this application, a coating method for a brake disc surface coating device comprises the following steps:

[0026] S1. Place the brake disc body on the tooling bottom plate and transport it to the bottom of the gantry via a chain-plate conveyor belt. A multi-stage push rod drives the tooling top plate downward to cover the brake disc body and expose the area to be painted. At the same time, a pressure sensor on the tooling top plate monitors the pressure. The rotating rod also drives the third baffle to block one side of the gantry to prevent paint from spilling.

[0027] S2. During spraying, the driving motor drives the first synchronous wheel, the second synchronous wheel, the third synchronous wheel and the synchronous belt, so that the rotating rod and the tooling top plate drive the brake disc body to rotate synchronously to ensure comprehensive and uniform spraying; at the same time, the rotating rod drives the sliding rod to move back and forth through the first bevel gear and the second bevel gear, thereby driving the spray head to swing, achieving all-round and uniform spraying;

[0028] S3. During spraying, the first baffle and the second baffle prevent the paint from adhering to the chain conveyor belt, ensuring the normal operation of the conveyor belt;

[0029] S4. After spraying is completed, the third and fourth baffles move to remove the obstruction on one side of the gantry and the material opening respectively, and the chain plate conveyor conveys the brake disc body into the drying box; then, the third and fourth baffles are reset and closed, and the carbon resistance wire heating plate and fan are started to dry the brake disc body from top to bottom; when discharging, the baffle closes the adjacent material opening to prevent hot air from escaping;

[0030] S5. In the drying box, the rubber strip rubs against the tooling bottom plate, driving the brake disc body to rotate, ensuring uniform heating and paint curing.

[0031] Beneficial effect: In the present invention, the inner walls on both sides of the gantry that are away from each other are fixed with a first baffle, and a plurality of second baffles are provided between the two first baffles, and one side of the gantry is slidably connected to the third baffle, and one side of the third baffle is fixed with a plurality of second connecting plates, and the second connecting plate is rotatably sleeved on the outer wall of the rotating rod; when the brake disc body moves below the gantry, the first baffle and the second baffle can just be close to the adjacent tooling bottom plate, and the brake disc body is located above the first baffle and the second baffle. During spraying, the paint adheres to the first baffle and the second baffle to prevent the paint from adhering to the chain conveyor belt and affecting the normal operation of the chain conveyor belt. The rotating rod drives the third baffle to move downward through the second connecting plate to block the side of the gantry close to the drying box. In the later spraying process, the third baffle can prevent the paint from spilling to the outside.

[0032] In the present invention, a plurality of rubber strips are provided in the drying box, and the rubber strips touch one side of the tooling base plate; when the chain plate conveyor belt drives the tooling base plate and the brake disc body to move in the drying box, the rubber strips touch the tooling base plate. When the chain plate conveyor belt drives the tooling base plate to move, the friction between the tooling base plate and the rubber strips drives the tooling base plate and the brake disc body to rotate, thereby enabling the brake disc body to be evenly heated in the drying box, ensuring that the paint is evenly cured on the surface of the brake disc body;

[0033] In the present invention, a plurality of second synchronous wheels and a third synchronous wheel are rotated on the top of the gantry, and the plurality of second synchronous wheels are respectively slidably sleeved on the outer walls of the corresponding rotating rods. The output shaft of the driving motor is fixed with a first synchronous wheel, and the first synchronous wheel is connected to the plurality of second synchronous wheels and the third synchronous wheels through a synchronous belt transmission. The driving motor drives the first synchronous wheel to rotate, and the cooperation of the first synchronous wheel, the second synchronous wheel, the third synchronous wheel and the synchronous belt can drive the rotating rod and the tooling top plate to rotate synchronously, and the tooling top plate drives the brake disc body to rotate synchronously, so as to facilitate uniform spraying on the surface of the brake disc body without dead angles.

[0034] In the present invention, a rotating cylinder is rotated and penetrated in the first base, and a second bevel gear meshing with the first bevel gear is fixed to one end of the rotating cylinder, and a sliding rod is slidably penetrated in the second base, and one end of the sliding rod extends into the rotating cylinder, and the outer wall of the sliding rod is provided with a reciprocating spiral groove section, and the sliding rod is used in conjunction with the slider through the reciprocating spiral groove section, and the sliding rod and the shifting rod are rotatably connected by a connecting rod; the first bevel gear drives the slider to rotate through the second bevel gear, and the slider drives the sliding rod to move back and forth, thereby driving the liquid pipe and the spray head to swing, so as to evenly spray the rotating brake disc body, ensure the uniformity of the spraying, and can spray the area of ​​the brake disc body to be sprayed in all directions;

[0035] In the present invention, the chain plate conveyor belt can be protected during spraying to prevent the paint from adhering to the chain plate conveyor belt, and the paint can be shielded by the third baffle to prevent the paint from spilling to the outside. In addition, the reciprocating swing of the liquid pipe and the rotation of the tooling base plate can ensure that the brake disc body is evenly sprayed without dead angles. During drying, the brake disc body can be evenly heated in the second base, ensuring that the coating is evenly cured on the brake disc body. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of a brake disc surface coating device provided in Example 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the main cross-sectional structure of a brake disc surface coating device provided in Example 1 of the present invention;

[0038] Figure 3 A schematic diagram of a three-dimensional exploded structure of a fixing column, a tooling base plate, and a brake disc body of a brake disc surface coating equipment provided in Example 1 of the present invention;

[0039] Figure 4 A schematic diagram of a three-dimensional exploded structure of a gantry, a third baffle, and a first baffle of a brake disc surface coating equipment provided in Example 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the three-dimensional structure of a first connecting plate, a rotating rod, and a tooling top plate of a brake disc surface coating painting device provided in Example 1 of the present invention;

[0041] Figure 6 A schematic diagram of the three-dimensional structure of a rotating rod and a liquid pipe of a brake disc surface coating device provided in Example 1 of the present invention;

[0042] Figure 7 A schematic diagram of a three-dimensional exploded structure of a sliding rod, a rotating cylinder, and a first bevel gear of a brake disc surface coating device provided in Example 1 of the present invention;

[0043] Figure 8 A schematic diagram of a three-dimensional exploded structure of a first baffle, a second baffle, and a first U-shaped frame of a brake disc surface coating equipment provided in Example 1 of the present invention;

[0044] Figure 9 A schematic diagram of a three-dimensional exploded structure of a third baffle, a fourth baffle, and a second connecting plate of a brake disc surface coating equipment provided in Example 1 of the present invention;

[0045] Figure 10A schematic diagram of the three-dimensional structure of a drying box, a carbon wire heater, and a fourth baffle of a brake disc surface coating equipment provided in Example 1 of the present invention;

[0046] Figure 11 This is a schematic diagram of the three-dimensional structure of the rubber strip, L-shaped rod and fixed column of the brake disc surface coating painting equipment provided by Example 2 of the present invention.

[0047] Figure: 1, workbench; 2, chain plate conveyor belt; 3, fixed column; 4, tooling bottom plate; 5, brake disc body; 6, tooling top plate; 7, gantry; 8, multi-stage push rod; 9, first connecting plate; 10, rotating rod; 11, driving motor; 12, first synchronous wheel; 13, second synchronous wheel; 14, third synchronous wheel; 15, synchronous belt; 16, liquid pipe; 17, nozzle; 18, shift lever; 19, first bevel gear; 20, first base; 21, rotating cylinder; 2 2. Second bevel gear; 23. Slider; 24. Second base; 25. Sliding rod; 26. Reciprocating spiral groove section; 27. Connecting rod; 28. First baffle; 29. ​​Second baffle; 30. First U-shaped frame; 31. Second U-shaped frame; 32. Third baffle; 33. Second connecting plate; 34. Drying box; 35. Feed port; 36. Fourth baffle; 37. Connecting rod; 38. Shielding plate; 39. Fan; 40. Carbon wire heater; 41. L-shaped rod; 42. Rubber strip. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] Example 1: Reference Figure 1-Figure 3 The coating equipment relates to the technical field of brake disc processing. The equipment mainly comprises a workbench 1, on the top of which two mounting plates are firmly mounted. A chain plate conveyor belt 2 is provided between the two mounting plates. The conveyor belt is used to continuously transport the brake disc body 5 during the coating process. A plurality of fixed columns 3 are fixed to the top of the chain plate conveyor belt 2. The tops of these fixed columns 3 are connected to a tooling base plate 4 through a rotating connection. The top of the tooling base plate 4 is used to place the brake disc body 5.

[0050] Reference Figure 1-Figure 3 and Figure 6A gantry 7 is also fixed on the top of the workbench 1, and the chain plate conveyor belt 2 passes through the gantry 7. The interior of the gantry 7 is designed with multiple tooling top plates 6. These tooling top plates 6 can match the brake disc body 5 and be put on the top of it to cover the parts of the brake disc body 5 that do not need to be sprayed. A liquid pipe 16 is rotatably connected to one side of the gantry 7 through a connecting seat. A plurality of spray heads 17 are fixed to the side of the liquid pipe 16 close to the gantry 7. These spray heads 17 are used to spray the coating on the brake disc body 5. One end of the liquid pipe 16 is connected to a liquid injection hose, which is connected to the external paint source to ensure that the paint can be smoothly injected into the liquid pipe 16.

[0051] Reference Figure 1 and Figure 2 A drying box 34 is fixed above the two mounting plates. The drying box 34 is located above the chain plate conveyor belt 2 and on the side of the gantry 7 away from the liquid pipe 16. The drying box 34 is equipped with a drying structure for drying the brake disc body 5 after painting.

[0052] Reference Figure 4 and Figure 5 In order to achieve the downward movement and positioning of the tooling top plate 6, a set of matching structures is designed in the equipment. This set of structures includes two multi-stage push rods 8, which are fixed through the gantry 7 and connected to the same first connecting plate 9. The bottom of the first connecting plate 9 is connected to a plurality of rotating rods 10 by a rotational connection. The bottom ends of these rotating rods 10 respectively pass through the gantry 7 and are fixedly connected to the top of the corresponding tooling top plate 6. When the output shaft of the multi-stage push rod 8 shrinks, the tooling top plate 6 can be driven to move downward through the first connecting plate 9 and the rotating rod 10, and accurately put on the top of the brake disc body 5. In addition, a pressure sensor is fixedly embedded on the top inner wall of the tooling top plate 6 to detect the pressure applied by the tooling top plate 6 to the brake disc body 5, to ensure that the tooling top plate 6 can stably drive the brake disc body 5 to rotate.

[0053] Reference Figure 4 and Figure 5 To achieve uniform spraying of the brake disc body 5 without blind spots, the equipment also incorporates a spraying mechanism. This mechanism comprises multiple second synchronous wheels 13 rotating on the top of the gantry 7. These second synchronous wheels 13 are slidably mounted on the outer walls of corresponding rotating rods 10. Multiple third synchronous wheels 14 are also rotatably connected to the top of the gantry 7. A drive motor 11 is fixedly mounted on one side of the gantry 7 through the frame, with its output shaft connected to a first synchronous wheel 12. A timing belt 15 provides a transmission connection between the first synchronous wheel 12 and the multiple second and third synchronous wheels 13, 14.

[0054] Specifically, when the drive motor 11 is started, it drives the first synchronous wheel 12 to rotate, which in turn drives the second synchronous wheel 13, the third synchronous wheel 14, the rotating rod 10, and the tooling top plate 6 to rotate synchronously via the timing belt 15. Because the tooling top plate 6 is connected to the brake disc body 5, the brake disc body 5 also rotates with it, achieving uniform spraying without blind spots.

[0055] Reference Figure 6 and Figure 7 The spraying structure also includes a plurality of first bevel gears 19 rotatably connected to the inner wall at the top of the gantry 7. These first bevel gears 19 are slidably sleeved on the outer wall of the rotating rod 10. A plurality of first bases 20 and second bases 24 are also fixed to the inner wall at the top of the gantry 7, and the adjacent second bases 24 correspond to the positions of the first bases 20. In each first base 20, a rotating cylinder 21 is rotatably passed through. One end of these rotating cylinders 21 is fixed with a second bevel gear 22 that meshes with the first bevel gear 19. In this way, when the rotating rod 10 rotates, the rotating cylinder 21 is driven to rotate through the meshing relationship between the first bevel gear 19 and the second bevel gear 22. Inside the rotating cylinder 21, a slider 23 is fixed. A sliding rod 25 slides through the second base 24. One end of these sliding rods 25 passes through the slider 23 and extends into the rotating cylinder 21. The outer wall of the sliding rod 25 is provided with a reciprocating spiral groove section 26. This reciprocating spiral groove section 26, in conjunction with the slider 23, drives the sliding rod 25 to reciprocate when the rotating barrel 21 rotates. To drive the liquid pipe 16 to reciprocate, a plurality of levers 18 are fixed to the top of the liquid pipe 16. The top ends of these levers 18 are rotationally connected to the end of the sliding rod 25 away from the rotating barrel 21 via a connecting rod 27. Therefore, when the sliding rod 25 reciprocates, it drives the liquid pipe 16 to reciprocate via the connecting rod 27. The swinging of the liquid pipe 16, in turn, drives the spray head 17 thereon to swing, thereby evenly spraying the rotating brake disc body 5.

[0056] Reference Figure 4 、 Figure 8 and Figure 9To block paint that might splash during the spraying process, a shielding structure is provided. This structure includes two first baffles 28 fixed to the inner walls of the gantry 7, facing away from each other. Multiple second baffles 29 are positioned between the two first baffles 28. The tooling base 4 is positioned between two adjacent second baffles 29, as well as between adjacent second baffles 29 and first baffles 28. The first and second baffles 28, 29 form a single unit through the fixed connection of a first U-shaped frame 30 and a second U-shaped frame 31. A third baffle 32 is slidably connected to the side of the gantry 7 near the drying box 34. Multiple second connecting plates 33 are fixed to the side of the third baffle 32 facing away from the drying box 34. These second connecting plates 33 are rotatably mounted on the outer walls of their respective rotating rods 10. Therefore, when the rotating rod 10 is raised or lowered, the third baffles 32 are driven up or down via the second connecting plates 33, thereby shielding the paint sprayed by the spray head 17.

[0057] Reference Figure 2 、 Figure 9 and Figure 10 The drying structure primarily comprises a plurality of carbon wire heater plates 40 fixed to the inner walls of a drying box 34, facing away from each other. A plurality of fans 39 are located at the top of the drying box 34 to inject ambient air into the drying box 34. A feed opening 35 is provided on each side of the drying box 34 for the entry and exit of the brake disc body 5. To shield these feed openings 35, a fourth baffle 36 is slidably connected to the side of the drying box 34 closest to the gantry 7, while a shielding plate 38 is rotatably connected to the feed opening 35 on the side away from the gantry 7.

[0058] Reference Figure 4 and Figure 9 A plurality of connecting rods 37 are fixed to the side of the fourth baffle 36 near the gantry 7. The other ends of these connecting rods 37 are fixedly connected to the third baffle 32. Through this design, when the third baffle 32 is raised or lowered, the fourth baffle 36 is also raised or lowered synchronously due to the fixed connection of the connecting rods 37. This synchronous lifting mechanism ensures that the brake disc bodies 5 after spraying can be smoothly delivered to the drying box 34 for drying. At the same time, the next batch of brake disc bodies 5 can also be accurately delivered to the gantry 7 for further spraying. This design not only improves the automation level of the equipment, but also greatly improves the painting efficiency.

[0059] Reference Figure 8The spacing between two adjacent second baffles 29, as well as the spacing between adjacent first and second baffles 28 and 29, is smaller than the diameter of the brake disc body 5. This design ensures that during the spraying process, the first and second baffles 28 and 29 effectively shield the chain-type conveyor belt 2, preventing paint sprayed by the spray head 17 from landing on the chain-type conveyor belt 2 and causing unnecessary pollution and waste. Furthermore, the second baffles 29 can also absorb excess paint, further ensuring accurate and uniform spraying.

[0060] Example 2: Reference Figure 11 , an improvement based on Example 1: a plurality of rubber strips 42 are provided in the drying box 34, and one side of these rubber strips 42 contacts one side of the tooling base plate 4. When the chain-type conveyor belt 2 drives the tooling base plate 4 and the brake disc body 5 to move in the drying box 34, the friction between the rubber strips 42 and the tooling base plate 4 will drive the tooling base plate 4 and the brake disc body 5 to rotate. This design allows the brake disc body 5 to be heated evenly during the drying process, thereby ensuring that the paint on the surface of the brake disc body 5 can be evenly cured. In order to enhance the stability and service life of the rubber strips 42, a plurality of L-shaped rods 41 are fixed on one side of the rubber strips 42, and the top ends of these L-shaped rods 41 are fixedly connected to the top inner wall of the drying box 34. This design not only improves the stability of the rubber strips 42, but also ensures its stability and reliability during long-term use.

[0061] A coating method for a brake disc surface coating device comprises the following steps:

[0062] S1. Place the brake disc body 5 on the tooling bottom plate 4, and convey the brake disc body 5 to the bottom of the gantry 7 through the chain plate conveyor belt 2. The output shaft of the multi-stage push rod 8 drives the tooling top plate 6 to move down and sleeve on the top of the brake disc body 5 through the first connecting plate 9 and the rotating rod 10, exposing the part of the brake disc body 5 to be painted. The pressure sensor fixedly embedded on the inner wall of the top of the tooling top plate 6 can detect the pressure applied by the tooling top plate 6 to the brake disc body 5, which is convenient for the tooling top plate 6 to drive the brake disc body 5 to rotate in the later stage. At the same time, the rotating rod 10 drives the third baffle 32 to move down through the second connecting plate 33, blocking the side of the gantry 7 close to the drying box 34. In the later spraying process, the third baffle 32 can prevent the paint from spilling to the outside;

[0063] S2. During spraying, the first synchronous wheel 12 is driven to rotate by the driving motor 11. The cooperation of the first synchronous wheel 12, the second synchronous wheel 13, the third synchronous wheel 14 and the synchronous belt 15 can drive the rotating rod 10 and the tooling top plate 6 to rotate synchronously. The tooling top plate 6 drives the brake disc body 5 to rotate synchronously, so as to facilitate uniform spraying without dead angles on the surface of the brake disc body 5. Then the rotating rod 10 drives the rotating cylinder 21 and the slider 23 to rotate through the cooperation of the first bevel gear 19 and the second bevel gear 22. The slider 23 drives the sliding rod 25 to move back and forth through the cooperation with the reciprocating spiral groove section 26. The sliding rod 25 drives the liquid pipe 16 to swing back and forth through the cooperation of the connecting rod 27 and the shifting rod 18, and then the spray head 17 swings to spray the rotating brake disc body 5 evenly, thereby ensuring the uniformity of the spraying and being able to spray all-round the area to be sprayed of the brake disc body 5;

[0064] S3. When the brake disc body 5 moves to the bottom of the gantry 7, the first baffle 28 and the second baffle 29 are just close to each other with the adjacent tooling base 4, and the brake disc body 5 is located above the first baffle 28 and the second baffle 29. Therefore, when spraying, the paint adheres to the first baffle 28 and the second baffle 29, preventing the paint from adhering to the chain plate conveyor belt 2 and affecting the normal operation of the chain plate conveyor belt 2;

[0065] S4. When the spraying is completed, the rotating rod 10 drives the third baffle 32 to move upward, and at the same time drives the fourth baffle 36 to move upward through the connecting rod 37 to remove the obstruction of the material opening 35, and the chain plate conveyor belt 2 can convey the sprayed brake disc body 5 into the drying box 34, and then the third baffle 32 and the fourth baffle 36 are reset downward, and at the same time, one side of the gantry 7 and the material opening 35 are closed, which is used for subsequent spraying and prevents the hot air in the drying box 34 from escaping; then the carbon resistance wire heating plate 40 is started to heat the air in the drying box 34, and the fan 39 injects the outside air into the drying box 34, thereby drying the brake disc body 5 from top to bottom, until the chain plate conveyor belt 2 discharges the brake disc body 5 from the drying box 34. In addition, when discharging, the baffle plate 38 can timely close the adjacent material opening 35 to prevent the hot air from escaping;

[0066] S5. When the chain conveyor belt 2 drives the tooling base plate 4 and the brake disc body 5 to move in the drying box 34, the rubber strip 42 contacts the tooling base plate 4. The friction between the tooling base plate 4 and the rubber strip 42 drives the tooling base plate 4 and the brake disc body 5 to rotate, thereby enabling the brake disc body 5 to be evenly heated in the drying box 34, ensuring that the paint on the surface of the brake disc body 5 is evenly cured.

[0067] However, as is well known to those skilled in the art, the working principles and wiring methods of the chain conveyor belt 2, carbon wire heating plate 40, fan 39 and drive motor 11 are commonplace, and are all conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0068] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A brake disc surface coating equipment, characterized in that, The workbench comprises a workbench, two mounting plates are fixed on the top of the workbench, a chain plate conveyor belt is provided between the two mounting plates, a plurality of fixing columns are fixed on the top of the chain plate conveyor belt, the tops of the plurality of fixing columns are rotatably connected to a tooling base plate, and a brake disc body is placed on the top of the tooling base plate; It also includes a gantry fixed on the top of the workbench, the chain plate conveyor belt passes through the gantry, a plurality of tooling top plates are provided in the gantry, and the tooling top plates cooperate with the brake disc body and are sleeved on the top of the brake disc body, one side of the gantry is rotatably connected to a liquid pipe through a connecting seat, a plurality of nozzles are fixed on the side of the liquid pipe close to the gantry for spraying a coating on the brake disc body, a liquid injection hose is fixed at one end of the liquid pipe, and the liquid injection hose is connected to an external paint source for injecting paint into the liquid pipe; It also includes a drying box fixedly arranged above the two mounting plates, the drying box is located above the chain plate conveyor belt, and the drying box is located on the side of the gantry away from the liquid pipe; A matching structure is provided in the gantry, and is used to control the downward movement of multiple tooling top plates and to cover the top of the brake disc body, thereby shielding the position on the top of the brake disc body that does not need to be sprayed; the matching structure includes two multi-stage push rods fixedly passing through the gantry, and the top ends of the output shafts of the two multi-stage push rods are fixed with the same first connecting plate, and the bottom of the first connecting plate is rotatably connected to multiple rotating rods, and the bottom ends of the multiple rotating rods all pass through the gantry and are fixedly connected to the tops of the corresponding tooling top plates, so as to control the lifting of the tooling top plates, and the top inner walls of the multiple tooling top plates are fixedly embedded with pressure sensors; The spraying structure is set in the gantry and is used to drive the liquid pipe to swing back and forth while driving the brake disc body to rotate, so that the spray head can spray the brake disc body evenly without dead angles; The spraying structure includes a plurality of second synchronous wheels rotating on the top of the gantry, and the plurality of second synchronous wheels are respectively slidably sleeved on the outer walls of the corresponding rotating rods. The top of the gantry is rotatably connected to a plurality of third synchronous wheels. A driving motor is fixed to one side of the gantry through a frame. The output shaft of the driving motor is fixed to a first synchronous wheel. The first synchronous wheel is connected to the plurality of second synchronous wheels and the third synchronous wheel through a synchronous belt transmission. The cooperation of the second synchronous wheel and the rotating rod can drive the tooling top plate to rotate; The shielding structure is arranged in the gantry and is used to prevent paint from spilling and adhering to the chain conveyor belt during spraying; the shielding structure includes two first baffles fixed to the inner walls on both sides of the gantry away from each other, a plurality of second baffles are provided between the two first baffles, and the plurality of tooling bottom plates are located between two adjacent second baffles and between adjacent second baffles and the first baffle, a first U-shaped frame is fixed on both sides of the top of the two first baffles, the bottom ends of the two first U-shaped frames on the same side are fixedly connected to the tops of the adjacent second baffles, and two second U-shaped frames are fixed between the adjacent second baffles to form a whole. The first baffle and the second baffle can be formed into a whole through the first U-shaped frame and the second U-shaped frame, the gantry is slidably connected to a third baffle on the side close to the drying box, and a plurality of second connecting plates are fixed on the side of the third baffle away from the drying box, and the plurality of second connecting plates are respectively rotatably sleeved on the outer walls of the corresponding rotating rods, and the rotating rods drive the third baffle to rise and fall, so as to shield the paint sprayed by the nozzle; A drying structure is provided in the drying box and is used to dry the brake disc body after spraying; A plurality of rubber strips are arranged in the drying box.

2. The brake disc surface coating equipment according to claim 1, characterized in that: The cam is secured to the top of the base and is engageable with the first gear, and the cam is engaged with the first gear and the second gear, and the cam is engaged with the first gear and the second gear.

3. The brake disc surface coating equipment according to claim 2, characterized in that: The drying structure includes a plurality of carbon wire resistance heating plates fixed on the inner walls on both sides of the drying box away from each other, a plurality of fans are provided on the top of the drying box, and material openings are provided on both sides of the drying box. A fourth baffle is slidably connected to the side of the drying box close to the gantry, which is used to block the adjacent material openings, and a baffle is rotatably connected to the material opening on the side away from the gantry, which is used to block the adjacent material openings. The baffle cooperates with the fourth baffle to prevent the hot air in the drying box from overflowing.

4. The brake disc surface coating equipment according to claim 3, characterized in that: A plurality of connecting rods are fixed to a side of the fourth baffle close to the gantry, and the plurality of connecting rods are all fixedly connected to the third baffle.

5. The brake disc surface coating equipment according to claim 4, characterized in that: The distance between two adjacent second baffles and the distance between adjacent first baffles and second baffles are smaller than the diameter of the brake disc body.

6. The brake disc surface coating equipment according to claim 5, characterized in that: The rubber strip touches one side of the tooling base plate, and the friction between the tooling base plate and the rubber strip drives the tooling base plate to rotate. Multiple L-shaped rods are fixed to one side of the rubber strip, and the top ends of the multiple L-shaped rods are fixedly connected to the top inner wall of the drying box. The rubber strip is made of fluororubber.

7. A coating method using the brake disc surface coating equipment according to claim 6, characterized in that: The following steps are involved: S1. Place the brake disc body on the tooling bottom plate and transport it to the bottom of the gantry via a chain-plate conveyor belt. A multi-stage push rod drives the tooling top plate downward to cover the brake disc body and expose the area to be painted. At the same time, a pressure sensor on the tooling top plate monitors the pressure. The rotating rod also drives the third baffle to block one side of the gantry to prevent paint from spilling. S2. During spraying, the driving motor drives the first synchronous wheel, the second synchronous wheel, the third synchronous wheel and the synchronous belt, so that the rotating rod and the tooling top plate drive the brake disc body to rotate synchronously to ensure comprehensive and uniform spraying; at the same time, the rotating rod drives the sliding rod to move back and forth through the first bevel gear and the second bevel gear, thereby driving the spray head to swing, achieving all-round and uniform spraying; S3. During spraying, the first baffle and the second baffle prevent the paint from adhering to the chain conveyor belt, ensuring the normal operation of the conveyor belt; S4. After spraying is completed, the third and fourth baffles move to remove the obstruction on one side of the gantry and the material opening respectively, and the chain plate conveyor conveys the brake disc body into the drying box; then, the third and fourth baffles are reset and closed, and the carbon resistance wire heating plate and fan are started to dry the brake disc body from top to bottom; when discharging, the baffle closes the adjacent material opening to prevent hot air from escaping; S5. In the drying box, the rubber strip rubs against the tooling bottom plate, driving the brake disc body to rotate, ensuring uniform heating and paint curing.

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