Brake disc surface coating coating equipment and coating method

Abstract

The invention belongs to the technical field of spraying devices, particularly relates to brake disc surface coating coating equipment and a coating method, and provides the following scheme aiming at the problems that in the existing spraying process, coating is diffused to the surrounding environment, a brake disc is not uniformly sprayed, and the brake disc is not uniformly heated during drying. The brake disc surface coating coating equipment comprises a workbench, two mounting plates are fixed to the top of the workbench, a chain plate type conveying belt is arranged between the two mounting plates, a plurality of fixing columns are fixed to the top of the chain plate type conveying belt, and the tops of the fixing columns are rotationally connected with tool bottom plates; a brake disc body is placed on the top of the tool bottom plate, the chain plate type conveying belt can be protected in the spraying process, coating is prevented from being attached to the chain plate type conveying belt, the coating can be shielded through a third baffle, and the coating is prevented from overflowing to the outside; and the brake disc body can be uniformly sprayed without dead angles through the reciprocating swing of the liquid pipe and the rotation of the tool bottom plate.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and particularly relates to a coating application device and a coating application method for the surface of a brake disc. Background Art

[0002] The brake caliper clamps the brake disc to generate braking force, and it is this that clamps the brake disc when braking to play a role in decelerating or stopping. The surface of the brake disc needs to be coated. Through a reasonable spraying process, the wear resistance, high temperature resistance and corrosion resistance of the brake disc can be significantly improved, thereby extending the service life and enhancing the overall performance of the braking system.

[0003] The following deficiencies still exist in the prior art during the spraying process: 1. In the current spraying technology, when the spray head applies the coating to the surface of the brake disc located on the conveyor belt, the coating tends to spread to the surrounding environment, which not only pollutes the environment but also may pose a threat to the health of the staff; in addition, the coating also tends to adhere to the conveyor belt, and over time, the coating layer accumulated on the conveyor belt will gradually thicken, thereby interfering with its normal operation; 2. During spraying, since the spray head faces a fixed position, some parts of the brake disc cannot be evenly sprayed; 3. During the drying process of the brake disc, the brake disc is directly placed in the drying device, resulting in uneven heating of the brake disc, and thus the coating cannot be evenly cured on the surface of the brake disc.

[0004] In view of the above problems, the present invention document proposes a coating application device and a coating application method for the surface of a brake disc. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages of the coating spreading to the surrounding environment, the coating adhering to the conveyor belt, uneven spraying of the brake disc, and uneven heating of the brake disc during drying in the existing spraying process, and to propose a coating application device and a coating application method for the surface of a brake disc.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A coating application device for the surface of a brake disc, including a workbench, two mounting plates are fixed on the top of the workbench, a chain conveyor belt is arranged between the two mounting plates, a plurality of fixing columns are fixed on the top of the chain conveyor belt, the top of each of the plurality of fixing columns is rotatably connected to a tooling bottom plate, and a brake disc body is placed on the top of the tooling bottom plate; It also includes a gantry fixed to the top of the workbench. The chain plate conveyor belt passes through the gantry. A plurality of tooling top plates are arranged inside 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 with a liquid pipe through a connecting seat. A plurality of spray heads are fixed on the side of the liquid pipe close to the gantry for spraying a coating on the brake disc body. One end of the liquid pipe is fixed with a liquid injection hose, and the liquid injection hose is communicated with 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 on the side of the gantry away from the liquid pipe; A matching structure is arranged inside the gantry and is used to control the downward movement of the plurality of tooling top plates and sleeve them on the top of the brake disc body, so as to shield the positions on the top of the brake disc body that do not need to be sprayed; A spraying structure is arranged inside the gantry and is used to drive the liquid pipe to swing reciprocally while driving the brake disc body to rotate, so that the spray heads can spray the brake disc body evenly without dead angles; A shielding structure is arranged inside the gantry and is used to block the overflow of paint and prevent the paint from adhering to the chain plate conveyor belt during the spraying process; A drying structure is arranged inside the drying box and is used to dry the sprayed brake disc body.

[0007] In a possible design, the matching structure includes two multi-stage push rods fixedly penetrating the gantry. The top ends of the output shafts of the two multi-stage push rods are fixed with the same first connecting plate. A plurality of rotating rods are rotatably connected to the bottom of the first connecting plate. The bottom ends of the plurality of rotating rods all penetrate the gantry and are fixedly connected to the tops of the corresponding tooling top plates for controlling the lifting of the tooling top plates. Pressure sensors are fixedly embedded in the inner walls of the tops of the plurality of tooling top plates; the output shafts of the multi-stage push rods drive the tooling top plates to move downward and sleeve them on the top of the brake disc body through the first connecting plate and the rotating rods, exposing the parts of the brake disc body to be painted, and the pressure sensors fixedly embedded in the inner walls of the tops of the tooling top plates can detect the pressure exerted by the tooling top plates on the brake disc body, which is convenient for driving the brake disc body to rotate by the tooling top plates in the later stage.

[0008] 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.

[0009] 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.

[0010] In a possible design, the shielding structure includes two first baffles fixed to the inner walls on the two mutually remote sides of the gantry. A plurality of second baffles are provided between the two first baffles. A plurality of tooling bottom plates are located between two adjacent second baffles and between an adjacent second baffle and a first baffle. At both sides of the top of the two first baffles, first U-shaped frames are fixed. The bottoms of the two first U-shaped frames on the same side are fixedly connected to the top of the adjacent second baffle. Two second U-shaped frames are fixed between two adjacent second baffles. Through the first U-shaped frames and the second U-shaped frames, the first baffle and the second baffle can be formed into a whole. A third baffle is slidably connected to the side of the gantry close to the drying box. A plurality of second connecting plates are fixed to the side of the third baffle remote from the drying box. The plurality of second connecting plates are respectively rotatably sleeved on the outer walls of the corresponding rotating rods. The rotating rods drive the third baffle to move up and down for shielding the paint sprayed by the spray heads. When the brake disc body moves to the lower part of the gantry, the first baffle and the second baffle can just approach the adjacent tooling bottom plates, 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, avoiding the paint adhering to the chain-type conveyor belt and affecting the normal operation of the chain-type conveyor belt. The rotating rods drive the third baffle to move down through the second connecting plates to shield the side of the gantry close to the drying box. During the subsequent spraying process, the third baffle can avoid the paint from spilling to the outside.

[0011] In a possible design, the drying structure includes a plurality of carbon resistance wire heating sheets fixed to the inner walls on the two mutually remote sides of the drying box. A plurality of fans are provided on the top of the drying box. Material inlets 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 for shielding the adjacent material inlets. A shielding baffle is rotatably connected in the material inlet on the side remote from the gantry for shielding the adjacent material inlet. The shielding baffle and the fourth baffle cooperate to avoid the hot air in the drying box from spilling. The chain-type conveyor belt conveys the sprayed brake disc body into the drying box. Then the third baffle and the fourth baffle move down and reset, simultaneously closing one side of the gantry and the material inlet, which is used for subsequent spraying and also avoids the hot air in the drying box from spilling. Then the carbon resistance wire heating sheets are started to heat the air in the drying box, and the fans inject the outside air into the drying box, thereby drying the brake disc body from top to bottom until the chain-type conveyor belt discharges the brake disc body from the drying box. Additionally, when discharging, the shielding baffle can timely close the adjacent material inlet to avoid the hot air from spilling.

[0012] In a possible design, a plurality of connecting rods are fixed to the side of the fourth baffle close to the gantry. The plurality of connecting rods are all fixedly connected to the third baffle. The third baffle and the fourth baffle move up and down synchronously, enabling the sprayed brake disc body to enter the drying box for drying, and at the same time enabling the brake disc body of the next batch to enter the gantry for re-spraying.

[0013] In a possible design, the spacing between two adjacent second baffles and the spacing between an adjacent first baffle and second baffle are less than the diameter of the brake disc body, for receiving the paint sprayed by the nozzle; during the spraying process, the cooperation between the first baffle and the second baffle can block the chain-type conveyor belt, preventing the paint sprayed by the nozzle from falling on the chain-type conveyor belt.

[0014] In a possible design, a plurality of rubber strips are provided in the drying box, and the rubber strips touch one side of the tooling bottom plate. The frictional force between the tooling bottom plate and the rubber strips drives the tooling bottom plate to rotate. A plurality of L-shaped rods are fixed to one side of the rubber strips, and the tops of the plurality of L-shaped rods are fixedly connected to the inner wall of the top of the drying box; when the chain-type conveyor belt drives the tooling bottom plate and the brake disc body to move in the drying box, the rubber strips touch the tooling bottom plate, and the frictional force between the tooling bottom plate and the rubber strips drives the tooling bottom plate and the brake disc body to rotate, so that the brake disc body can be evenly heated in the drying box, ensuring that the paint is evenly cured on the surface layer of the brake disc body.

[0015] In this application, a painting method for a painting device for the surface coating of a brake disc includes the following steps: S1. Place the brake disc body on the tooling bottom plate, transport it under the gantry through the chain-type conveyor belt, the multi-stage push rod drives the tooling top plate to move down to cover the brake disc body and expose the part to be painted. At the same time, the pressure sensor on the tooling top plate monitors the pressure, and the rotating rod also drives the third baffle to block one side of the gantry to prevent paint from overflowing. S2. During spraying, the drive 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, ensuring full and uniform spraying; at the same time, the rotating rod drives the sliding rod to reciprocate through the first bevel gear and the second bevel gear, thereby driving the nozzle to swing, realizing all-round uniform spraying. S3. During spraying, the first baffle and the second baffle prevent the paint from adhering to the chain-type conveyor belt, ensuring the normal operation of the conveyor belt. S4. After spraying, the third baffle and the fourth baffle move to release the blocking of one side of the gantry and the material port respectively, and the chain-type conveyor belt sends the brake disc body into the drying box; subsequently, the third baffle and the fourth baffle reset and close, the carbon resistance wire heating sheet and the fan are started, and the brake disc body is dried from top to bottom; when discharging, the shielding baffle closes the adjacent material port to prevent hot air from leaking out. S5. In the drying box, the rubber strips rub against the tooling bottom plate, driving the brake disc body to rotate, ensuring uniform heating and paint curing.

[0016] Beneficial effects: In the present invention, first baffles are fixed to the inner walls on both sides of the gantry that are far away from each other. A plurality of second baffles are provided between the two first baffles. A third baffle is slidably connected to one side of the gantry. A plurality of second connecting plates are fixed to one side of the third baffle, and the second connecting plates are rotatably sleeved on the outer wall of the rotating rod. When the brake disc body moves to the lower part of the gantry, the first baffle and the second baffle can just approach the adjacent tooling base 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, avoiding the paint adhering to the chain-type conveyor belt and affecting the normal operation of the chain-type conveyor belt. The rotating rod drives the third baffle to move downward through the second connecting plate, covering the side of the gantry close to the drying oven. During the later spraying process, the third baffle can prevent the paint from spilling to the outside; In the present invention, a plurality of rubber strips are provided in the drying oven, and the rubber strips touch one side of the tooling base plate. When the chain-type conveyor belt drives the tooling base plate and the brake disc body to move in the drying oven, the rubber strips touch the tooling base plate. When the chain-type conveyor belt drives the tooling base plate to move, the frictional force between the tooling base plate and the rubber strips drives the tooling base plate and the brake disc body to rotate, so that the brake disc body can be evenly heated in the drying oven, ensuring that the paint is evenly cured on the surface of the brake disc body; In the present invention, a plurality of second synchronous wheels and third synchronous wheels are rotatably provided at the top of the gantry. The plurality of second synchronous wheels are respectively slidably sleeved on the outer walls of the corresponding rotating rods. A first synchronous wheel is fixed to the output shaft of the driving motor, and the first synchronous wheel is connected to the plurality of second synchronous wheels and third synchronous wheels through a synchronous belt; by driving the first synchronous wheel to rotate by the driving motor, the cooperation of the first synchronous wheel, the second synchronous wheels, the third synchronous wheels 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, facilitating uniform spraying without dead angles on the surface of the brake disc body; In the present invention, a rotating cylinder rotatably penetrates through the first base. A second bevel gear meshing with the first bevel gear is fixed to one end of the rotating cylinder. A sliding rod slidably penetrates through the second base. One end of the sliding rod extends into the rotating cylinder. A reciprocating spiral groove section is provided on the outer wall of the sliding rod, and the sliding rod cooperates with the slider through the reciprocating spiral groove section. The sliding rod is rotatably connected to the lever through 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 reciprocate, so as to drive the liquid pipe and the nozzle to swing, enabling uniform spraying on the rotating brake disc body, ensuring the uniformity of spraying, and enabling all-round spraying on the area to be sprayed of the brake disc body; In the present invention, it can protect the chain plate conveyor belt during spraying to avoid the adhesion of paint on the chain plate conveyor belt, and can also block the paint through the third baffle to prevent the paint from spilling to the outside. In addition, through the reciprocating swing of the liquid pipe and the rotation of the tooling base plate, the brake disc body can be evenly sprayed without dead angles. During drying, it can ensure that the brake disc body is evenly heated in the second base, and ensure that the coating is evenly cured on the brake disc body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 2 FIG. 7 is a front view cross-sectional structural schematic diagram of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 3 FIG. 8 is a three-dimensional exploded structural schematic diagram of a fixed column, a tooling base plate and a brake disc body of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 4 FIG. 9 is a three-dimensional exploded structural schematic diagram of a gantry, a third baffle and a first baffle of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 5 FIG. 10 is a three-dimensional structural schematic diagram of a first connecting plate, a rotating rod and a tooling top plate of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 6 FIG. 11 is a three-dimensional structural schematic diagram of a rotating rod and a liquid pipe of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 7 FIG. 12 is a three-dimensional exploded structural schematic diagram of a sliding rod, a rotating cylinder and a first bevel gear of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 8 FIG. 13 is a three-dimensional exploded structural schematic diagram of a first baffle, a second baffle and a first U-shaped frame of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 9 FIG. 14 is a three-dimensional exploded structural schematic diagram of a third baffle, a fourth baffle and a second connecting plate of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 10 FIG. 15 is a three-dimensional structural schematic diagram of a drying box, a carbon resistance wire heating sheet and a fourth baffle of a brake disc surface coating painting device provided in Embodiment 1 of the present invention; Figure 11 FIG. 16 is a three-dimensional structural schematic diagram of the cooperation of a rubber strip, an L-shaped rod and a fixed column of a brake disc surface coating painting device provided in Embodiment 2 of the present invention.

[0018] In the 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, drive motor; 12, first synchronous pulley; 13, second synchronous pulley; 14, third synchronous pulley; 15, synchronous belt; 16, liquid pipe; 17, nozzle; 18, lever; 19, first bevel gear; 20, first base; 21, rotating cylinder; 22, 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, material inlet; 36, fourth baffle; 37, connecting rod; 38, shielding plate; 39, fan; 40, carbon resistance wire heating element; 41, L-shaped rod; 42, rubber strip. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Embodiment 1: Refer to Figures 1 - 3 , a coating device, which relates to the technical field of brake disc processing. The surface coating device for the brake disc mainly includes a workbench 1. Two mounting plates are firmly installed on the top of the workbench. A chain plate conveyor belt 2 is arranged between these two mounting plates, and this conveyor belt is used to continuously convey the brake disc body 5 during the coating process. A plurality of fixed columns 3 are fixed on the top of the chain plate conveyor belt 2. The tops of these fixed columns 3 are all connected to the tooling bottom plate 4 in a rotational connection manner, and the top of the tooling bottom plate 4 is used to place the brake disc body 5.

[0021] Refer to Figures 1 - 3 and Figure 6 , a gantry 7 is also fixed on the top of the workbench 1, and the chain plate conveyor belt 2 passes through the gantry 7. A plurality of tooling top plates 6 are designed inside the gantry 7. These tooling top plates 6 can match the brake disc body 5 and are sleeved on its top to shield the parts of the brake disc body 5 that do not need to be sprayed. One side of the gantry 7 is rotationally connected to a liquid pipe 16 through a connecting seat. A plurality of nozzles 17 are fixed on the side of the liquid pipe 16 close to the gantry 7, and these nozzles 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, and this hose is connected to an external paint source to ensure that the paint can be smoothly injected into the liquid pipe 16.

[0022] Refer to Figure 1 and Figure 2A 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Reference Figure 6 and Figure 7, the spraying structure further includes a plurality of first bevel gears 19 rotatably connected to the inner wall of 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 of the top of the gantry 7, and the adjacent second bases 24 and first bases 20 are corresponding in position. In each first base 20, a rotating cylinder 21 is rotatably penetrated. One end of these rotating cylinders 21 is fixed with a second bevel gear 22 meshing with the first bevel gear 19. In this way, when the rotating rod 10 rotates, the rotating cylinder 21 will be 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 is slidably penetrated through the second base 24. One end of these sliding rods 25 penetrates through the slider 23 and extends into the rotating cylinder 21. A reciprocating spiral groove section 26 is provided on the outer wall of the sliding rod 25. Through the cooperation of the reciprocating spiral groove section 26 and the slider 23, when the rotating cylinder 21 rotates, the sliding rod 25 will be driven to reciprocate. In order to drive the liquid pipe 16 to swing reciprocally, a plurality of dial rods 18 are fixed to the top of the liquid pipe 16. The top ends of these dial rods 18 and the end of the sliding rod 25 away from the rotating cylinder 21 are rotatably connected by a connecting rod 27. Therefore, when the sliding rod 25 reciprocates, the liquid pipe 16 will be driven to swing reciprocally through the connecting rod 27. The swinging of the liquid pipe 16 will further drive the spray head 17 thereon to swing, so as to evenly spray the rotating brake disc body 5.

[0027] Refer to Figure 4 , Figure 8 and Figure 9 , in order to block the paint that may be splashed during the spraying process, a shielding structure is provided. This structure includes two first baffles 28 fixed to the inner walls of the two sides of the gantry 7 away from each other. A plurality of second baffles 29 are provided between the two first baffles 28. These tooling bottom plates 4 are located between adjacent two second baffles 29 and between adjacent second baffles 29 and first baffles 28. Through the fixed connection of the first U-shaped frame 30 and the second U-shaped frame 31, the first baffle 28 and the second baffle 29 form an integral structure. On the side of the gantry 7 close to the drying oven 34, a third baffle 32 is slidably connected. A plurality of second connecting plates 33 are fixed to the side of the third baffle 32 away from the drying oven 34. These second connecting plates 33 are respectively rotatably sleeved on the outer wall of the corresponding rotating rod 10. Therefore, when the rotating rod 10 moves up and down, the third baffle 32 will be driven to move up and down through the second connecting plates 33, so as to block the paint sprayed by the spray head 17.

[0028] Refer to Figure 2 , Figure 9 and Figure 10The 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.

[0029] 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.

[0030] Reference Figure 8 The 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.

[0031] 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.

[0032] A painting method for a painting device of a brake disc surface coating, comprising the following steps: S1. Place the brake disc body 5 on the tooling bottom plate 4, and convey the brake disc body 5 to the lower part 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 downward 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 in the inner wall of the top of the tooling top plate 6 can detect the pressure exerted by the tooling top plate 6 on the brake disc body 5, which is convenient for the tooling top plate 6 to drive the brake disc body 5 to rotate later. At the same time, the rotating rod 10 drives the third baffle 32 to move downward through the second connecting plate 33, covering one side of the gantry 7 close to the drying box 34. During the later spraying process, the third baffle 32 can prevent the paint from spilling to the outside; S2. During spraying, drive the first synchronous wheel 12 to rotate through the drive motor 11. The cooperation between 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, which is convenient for 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 reciprocate through the cooperation with the reciprocating spiral groove section 26. The sliding rod 25 drives the liquid pipe 16 to swing reciprocally through the cooperation of the connecting rod 27 and the dial rod 18. Then, the nozzle 17 swings to uniformly spray the rotating brake disc body 5, ensuring the uniformity of spraying and being able to spray all directions of the area to be sprayed on the brake disc body 5; S3. Since when the brake disc body 5 moves to the lower part of the gantry 7, the first baffle 28 and the second baffle 29 can just get close to the adjacent tooling bottom plate 4, and the brake disc body 5 is located above the first baffle 28 and the second baffle 29, during spraying, the paint adheres to the first baffle 28 and the second baffle 29, avoiding the paint adhering to the chain plate conveyor belt 2 and affecting the normal operation of the chain plate conveyor belt 2; S4. After the spraying is completed, the rotating rod 10 drives the third baffle 32 to move upward. At the same time, the connecting rod 37 drives the fourth baffle 36 to move upward to release the shielding of the material port 35. The chain plate conveyor belt 2 can convey the sprayed brake disc body 5 into the drying box 34. Then, the third baffle 32 and the fourth baffle 36 move downward to reset, and at the same time, one side of the gantry 7 and the material port 35 are closed, which is used for subsequent spraying and also prevents the hot air in the drying box 34 from dissipating. Then, the carbon resistance wire heating sheet 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, so as to dry 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 shielding plate 38 can timely close the adjacent material port 35 to prevent the hot air from dissipating; S5. When the chain plate 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 touches the tooling base plate 4. The frictional force 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, so that the brake disc body 5 can be evenly heated in the drying box 34, ensuring that the coating is evenly cured on the surface of the brake disc body 5.

[0033] However, as is well known to those skilled in the art, the working principles and wiring methods of the chain plate conveyor belt 2, the carbon resistance wire heating sheet 40, the fan 39 and the drive motor 11 are common knowledge. They all belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0034] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A surface coating painting device for a brake disc, characterized in that, It includes a workbench (1). Two mounting plates are fixed to the top of the workbench (1). A chain-type conveyor belt (2) is arranged between the two mounting plates. A plurality of fixing columns (3) are fixed to the top of the chain-type conveyor belt (2). The tops of the plurality of fixing columns (3) are all rotatably connected to a tooling bottom plate (4). And a brake disc body (5) is placed on the top of the tooling bottom plate (4). It further includes a gantry (7) fixed to the top of the workbench (1). The chain-type conveyor belt (2) penetrates through the gantry (7). A plurality of tooling top plates (6) are arranged in the gantry (7). And the tooling top plates (6) cooperate with the brake disc body (5) and are sleeved on the top of the brake disc body (5). One side of the gantry (7) is rotatably connected to a liquid pipe (16) through a connecting seat. A plurality of spray nozzles (17) are fixed to the side of the liquid pipe (16) close to the gantry (7) for spraying a coating on the brake disc body (5). One end of the liquid pipe (16) is fixed with a liquid injection hose, and the liquid injection hose is communicated with an external paint source for injecting paint into the liquid pipe (16). It further includes a drying box (34) fixedly arranged above the two mounting plates. The drying box (34) is located above the chain-type conveyor belt (2). The drying box (34) is located on the side of the gantry (7) away from the liquid pipe (16). A matching structure is arranged in the gantry (7) for controlling the downward movement of the plurality of tooling top plates (6) and sleeving them on the top of the brake disc body (5), so as to shield the positions on the top of the brake disc body (5) that do not need to be sprayed. A spraying structure is arranged in the gantry (7) for driving the liquid pipe (16) to swing reciprocally while driving the brake disc body (5) to rotate, so that the spray nozzles (17) spray the brake disc body (5) evenly without dead angles. A shielding structure is arranged in the gantry (7) for blocking the dispersion of the paint during the spraying process and preventing the paint from adhering to the chain-type conveyor belt (2). A drying structure is arranged in the drying box (34) for drying the sprayed brake disc body (5).

2. The surface coating painting equipment for a brake disc according to claim 1, characterized in that, The matching structure includes two multi-stage push rods (8) fixedly penetrating through the gantry (7). The top ends of the output shafts of the two multi-stage push rods (8) are fixed with the same first connecting plate (9). A plurality of rotating rods (10) are rotatably connected to the bottom of the first connecting plate (9). The bottom ends of the plurality of rotating rods (10) all penetrate through the gantry (7) and are fixedly connected to the tops of the corresponding tooling top plates (6) for controlling the lifting of the tooling top plates (6). Pressure sensors are fixedly embedded in the inner walls of the tops of the plurality of tooling top plates (6).

3. The surface coating painting equipment for a brake disc according to claim 2, characterized in that, The spraying structure includes a plurality of second synchronous wheels (13) rotating on the top of the gantry (7), the plurality of second synchronous wheels (13) are respectively slidably sleeved on the outer walls of the corresponding rotating rods (10), the top of the gantry (7) is rotatably connected to a plurality of third synchronous wheels (14), a driving motor (11) is fixed to one side of the gantry (7) through a frame, the output shaft of the driving motor (11) is fixed to a first synchronous wheel (12), the first synchronous wheel (12) and the plurality of second synchronous wheels (13) and the third synchronous wheel (14) are connected through a synchronous belt (15), and the cooperation of the second synchronous wheel (13) and the rotating rod (10) can drive the tooling top plate (6) to rotate.

4. A brake disc surface coating painting device according to claim 3, characterized in that, The spraying structure further comprises a plurality of first bevel gears (19) rotating on the inner wall of the top of the gantry (7), the plurality of first bevel gears (19) being respectively slidably sleeved on the outer wall of the rotating rod (10), a plurality of first bases (20) and second bases (24) being fixed on the inner wall of the top of the gantry (7), and the adjacent second bases (24) corresponding to the positions of the first bases (20), a rotating cylinder (21) being rotatably passed through the first base (20), a second bevel gear (22) being meshed with the first bevel gear (19) being fixed at one end of the rotating cylinder (21), a slider (23) being fixed in the rotating cylinder (21), and a sliding rod (25) being slidably passed through the second base (24). ), one end of the sliding rod (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), and the sliding rod (25) cooperates with the slider (23) through the reciprocating spiral groove section (26), and when the rotating cylinder (21) rotates, the sliding rod (25) is driven to move back and forth through the cooperation between the slider (23) and the reciprocating spiral groove section (26), and a plurality of shifting rods (18) are fixed to the top of the liquid pipe (16), and the top end of the shifting rod (18) and the end of the sliding rod (25) away from the rotating cylinder (21) are rotatably connected through a connecting rod (27), and the sliding rod (25) drives the liquid pipe (16) to swing back and forth through the connecting rod (27).

5. A brake disc surface coating painting device according to claim 4, characterized in that, The shielding structure includes two first baffles (28) fixed to the inner walls on the two sides of the gantry (7) away from each other. A plurality of second baffles (29) are provided between the two first baffles (28). A plurality of the tooling bottom plates (4) are located between two adjacent second baffles (29) and between an adjacent second baffle (29) and the first baffle (28). On both sides of the top of the two first baffles (28), first U-shaped frames (30) are fixed. The bottom ends of the two first U-shaped frames (30) on the same side are fixedly connected to the top of the adjacent second baffle (29). Two second U-shaped frames (31) are fixed between two adjacent second baffles (29). Through the first U-shaped frames (30) and the second U-shaped frames (31), the first baffle (28) and the second baffle (29) can be formed into a whole. On the side of the gantry (7) close to the drying box (34), a third baffle (32) is slidably connected. On the side of the third baffle (32) away from the drying box (34), a plurality of second connecting plates (33) are fixed. The plurality of second connecting plates (33) are respectively rotatably sleeved on the outer walls of the corresponding rotating rods (10). The rotating rods (10) drive the third baffle (32) to lift and lower, so as to shield the paint sprayed by the spray head (17).

6. The surface coating painting equipment for a brake disc according to claim 5, characterized in that, The drying structure includes a plurality of carbon resistance wire heating sheets (40) fixed to the inner walls on the two sides of the drying box (34) away from each other. A plurality of fans (39) are provided on the top of the drying box (34). Feeding ports (35) are provided on both sides of the drying box (34). On the side of the drying box (34) close to the gantry (7), a fourth baffle (36) is slidably connected to shield the adjacent feeding port (35). In the feeding port (35) on the side away from the gantry (7), a shielding baffle (38) is rotatably connected to shield the adjacent feeding port (35). The shielding baffle (38) and the fourth baffle (36) cooperate to prevent the hot air in the drying box (34) from dissipating.

7. A surface coating painting device for a brake disc according to claim 6, characterized in that, On the side of the fourth baffle (36) close to the gantry (7), a plurality of connecting rods (37) are fixed. The plurality of connecting rods (37) are all fixedly connected to the third baffle (32).

8. A surface coating painting device for a brake disc according to claim 7, characterized in that, The distance between two adjacent second baffles (29) and the distance between an adjacent first baffle (28) and the second baffle (29) are smaller than the diameter of the brake disc body (5).

9. The surface coating painting equipment for a brake disc according to claim 8, characterized in that, A plurality of rubber strips (42) are provided in the drying box (34), and the rubber strips (42) touch one side of the tooling bottom plate (4). The friction between the tooling bottom plate (4) and the rubber strips (42) drives the tooling bottom plate (4) to rotate. On one side of the rubber strips (42), a plurality of L-shaped rods (41) are fixed. The top ends of the plurality of L-shaped rods (41) are fixedly connected to the inner wall of the top of the drying box (34). The material of the rubber strips (42) is fluororubber.

10. A coating method using the coating equipment for the brake disc surface coating as described in claim 9, characterized in that, Including the following steps: S1. Place the brake disc body (5) on the tooling bottom plate (4), transport it under the gantry (7) via the chain plate conveyor belt (2), drive the tooling top plate (6) to move down by the multi-stage push rod (8) to cover the brake disc body (5) and expose the part to be painted. Meanwhile, the pressure sensor on the tooling top plate (6) monitors the pressure, and the rotating rod (10) also drives the third baffle (32) to block one side of the gantry (7) to prevent paint spillage. S2. During spraying, the drive motor (11) drives the first synchronous wheel (12), the second synchronous wheel (13), the third synchronous wheel (14) and the synchronous belt (15), so that the rotating rod (10) and the tooling top plate (6) drive the brake disc body (5) to rotate synchronously to ensure full and uniform spraying. At the same time, the rotating rod (10) drives the sliding rod (25) to reciprocate through the first bevel gear (19) and the second bevel gear (22), and then drives the nozzle (17) to swing to achieve all-round and uniform spraying. S3. During spraying, the first baffle (28) and the second baffle (29) prevent paint from adhering to the chain plate conveyor belt (2) to ensure the normal operation of the conveyor belt. S4. After spraying, the third baffle (32) and the fourth baffle (36) move to remove the blockage of one side of the gantry (7) and the material inlet (35) respectively, and the chain plate conveyor belt (2) sends the brake disc body (5) into the drying oven (34). Subsequently, the third baffle (32) and the fourth baffle (36) reset and close, and the carbon resistance wire heating element (40) and the fan (39) are started to dry the brake disc body (5) from top to bottom. When discharging, the baffle (38) closes the adjacent material inlet (35) to prevent hot air from leaking out. S5. Inside the drying oven (34), the rubber strip (42) rubs against the tooling bottom plate (4) to drive the brake disc body (5) to rotate to ensure uniform heating and paint curing.

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