Painting device for mobile phone mainboard support assembly production

Abstract

The invention relates to the technical field of painting devices, and discloses a painting device for mobile phone mainboard support assembly production, which comprises a support frame, the support frame further comprises a limiting device, the limiting device comprises a limiting structure and a reciprocating structure, and the limiting structure comprises a support plate, an air cylinder, a spray gun and a limiting plate. The supporting plate is fixedly connected to the upper portion of the supporting frame, the spray gun is fixedly connected to the top end of the supporting plate, the air cylinder is fixedly connected to the top end of the spray gun, and the limiting plate is arranged below the spray gun. And at the moment, a spring arranged between the pressed inclined block and the sliding frame rebounds to reset the pressed inclined block, so that the limiting plate is opened and reset, a next mobile phone mainboard support can enter conveniently, and then the machining efficiency and stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of painting devices, and specifically to a painting device for the production of mobile phone motherboard bracket components. Background Art

[0002] In modern society, mobile phones have become an essential tool in people's lives. People often use mobile phones to perform tasks such as watching videos. To facilitate users' viewing, corresponding brackets need to be installed on mobile phones, making it convenient for people to use. Moreover, with the progress of society, the shapes and colors of existing mobile phone motherboard brackets have become diversified. However, during the production and painting process of existing mobile phone motherboard brackets, they are prone to shaking and deviating due to environmental influences, being unstable, having low painting efficiency, low precision, and poor finished product quality.

[0003] The invention patent with the patent number CN202220447227.0 discloses a painting device for the production of mobile phone motherboard bracket components. In this invention, the motor drives the first gear to rotate, the first gear drives the second gear to rotate, and further, the first gear and the second gear drive the movable rod and the rotating rod to rotate. The movable rod and the rotating rod drive the stirring rod to rotate. After being dispersed by the rotating stirring rod, it is evenly blown onto the paint, making the paint evenly heated and maintaining fluidity, thereby preventing the paint from precipitating and stratifying, ensuring the stability of the paint quality. When the switch is turned on, the paint in the paint tank enters the interior of the discharge pipe. Further, the air cylinder drives the cross plate to move, bringing the cross plate closer to the mobile phone motherboard bracket, and then it is sprayed onto the mobile phone motherboard bracket through a paint spray gun. At the same time, the air blown out by the hair dryer passes through the heating wire, is heated, and further blows from the heat dissipation holes towards the mobile phone motherboard bracket with the paint sprayed on it, which can accelerate the drying speed of the paint, and thus facilitate the even spraying of the paint, improving the original work efficiency. Although this patent solves the above problems, there are still problems such as the instability of the mobile phone motherboard bracket and low painting precision during the painting process, which affect the painting quality. Therefore, it is very necessary to design a painting device for the production of mobile phone motherboard bracket components that can limit and clamp the mobile phone motherboard bracket, prevent the mobile phone motherboard bracket from moving randomly, and improve the efficiency and precision of painting. Summary of the Invention

[0004] The purpose of the present invention is to provide a painting device for the production of mobile phone motherboard bracket components to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A painting device for producing a mobile phone motherboard bracket assembly, including a support frame, the support frame further includes a limiting device, the limiting device includes a limiting structure and a reciprocating structure, the limiting structure includes a support plate, a cylinder, a spray gun, and a limiting plate. The support plate is fixedly connected above the support frame, the spray gun is fixedly connected to the top of the support plate, the cylinder is fixedly connected to the top of the spray gun, the limiting plate is arranged below the spray gun, the reciprocating structure includes a downward pressing inclined block, a pressed inclined block, a sliding frame, and a chute. The downward pressing inclined block is fixedly connected to the surface of the spray gun, the pressed inclined block is slidably connected below the downward pressing inclined block, the sliding frame is fixedly connected to the inner side of the support plate, the chute is opened at the bottom of the sliding frame, the limiting plate is fixedly connected to the bottom end of the pressed inclined block, the limiting plate is slidably connected to the inner side of the chute, the pressed inclined block is slidably connected to the inner side of the sliding frame, and a spring is arranged between the pressed inclined block and the sliding frame. Start the cylinder, the cylinder drives the spray gun to press down to adjust the height for painting the mobile phone motherboard bracket, preventing uneven spraying caused by too long or too short spraying distance during painting. During painting, the mobile phone motherboard bracket is clamped by the limiting plate, preventing the mobile phone motherboard bracket from moving randomly, improving the painting efficiency and accuracy, and the limiting plate can prevent paint from splashing, avoiding affecting the processing environment and wasting materials. After the cylinder drives the spray gun to press down, the spray gun drives the downward pressing inclined block to press down, and the inclined surface at the bottom end of the downward pressing inclined block squeezes the inclined surface at the top end of the pressed inclined block to make the pressed inclined block move inward, thereby driving the limiting plate to move inward, and the inward movement of the limiting plate clamps the mobile phone motherboard bracket tighter, making the mobile phone motherboard bracket more stable during processing and further improving the processing accuracy. After painting one mobile phone motherboard bracket is completed, the cylinder drives the spray gun to rise, so that the downward pressing inclined block releases the extrusion of the pressed inclined block. At this time, the spring arranged between the pressed inclined block and the sliding frame rebounds to reset the pressed inclined block, thereby opening and resetting the limiting plate, facilitating the entry of the next mobile phone motherboard bracket, and further improving the processing efficiency and stability.

[0006] According to the above technical solution, a sediment prevention device is provided on the right side of the support plate. The sediment prevention device includes a stirring structure and a uniform structure. The stirring structure includes a storage bucket, a rotating shaft, and stirring paddles. The storage bucket is fixedly connected to the right side of the support plate. The rotating shaft is rotatably connected to the bottom of the storage bucket. The stirring paddles are fixedly connected to the surface of the rotating shaft. The uniform structure includes an eccentric main shaft, an X-shaped connecting rod, a coupling shaft, and a housing. The eccentric main shaft rotatably penetrates the bottom end of the storage bucket. The X-shaped connecting rod is fixedly connected to the surface of the eccentric main shaft. The coupling shaft is hinged below the X-shaped connecting rod. The housing is fixedly connected above the storage bucket. The rotating shaft rotatably penetrates the top end of the storage bucket. The storage bucket is fixedly connected above the support frame. The eccentric main shaft rotatably penetrates the top of the housing. A motor is provided at the top end of the eccentric main shaft and the motor is fixedly connected above the housing. The housing is fixedly connected to the surface of the air cylinder. The sliding frame is fixedly connected to the left side of the storage bucket. When processing the mobile phone motherboard bracket, the motor is started. The motor drives the rotating shaft to rotate through the transmission component. The rotating shaft drives the stirring paddles to rotate. The stirring paddles stir the paint in the storage bucket to prevent the paint from sedimenting and stratifying, resulting in uneven distribution of useful substances and unstable spraying quality. After the motor is started, it drives the eccentric main shaft to rotate. The eccentric main shaft drives the X-shaped connecting rod to rotate in a circle. The X-shaped connecting rod drives the four coupling shafts to rotate to stir the paint in the storage bucket comprehensively. The four coupling shafts stir the paint in four directions in the storage bucket, avoiding the problem of poor stirring effect caused by excessive resistance, and being able to stir every corner of the paint comprehensively, making the stirring more uniform, enabling the paint to flow more quickly, and further avoiding sedimentation.

[0007] According to the above technical solution, an intermittent conveying device is provided below the eccentric main shaft. The intermittent conveying device includes a conveying structure and an intermittent structure. The conveying structure includes a transmission shaft, a conveyor belt, and a connecting belt. The transmission shaft is hinged inside the support frame. The conveyor belt is drivingly connected to the surface of the transmission shaft. The connecting belt is fixedly connected to the right side of the conveyor belt. The intermittent structure includes a push plate, a dial plate, a rotating wheel, and a reducer. The push plate is fixedly connected to the right side of the connecting belt. The reducer is drivingly connected to the bottom end of the eccentric main shaft. The rotating wheel is fixedly connected below the reducer. The dial plate is fixedly connected to the surface of the rotating wheel. The rotating wheel is hinged to the top end of the support frame. The reducer is hinged to the bottom end of the storage bucket. The connecting belt drives the conveyor belt to rotate on the transmission shaft. The conveyor belt conveys the mobile phone motherboard bracket to a specified position for painting, eliminating the need for manual placement and improving the feeding efficiency. The rotation of the eccentric main shaft drives the reducer to operate. The reducer drives the rotating wheel to rotate slowly. The rotating wheel then drives the dial plate to rotate. The dial plate rotates once to push the push plate once, causing the push plate to move forward. The forward movement of the push plate drives the connecting belt to move forward, thereby enabling the conveyor belt to intermittently convey the mobile phone motherboard bracket, allowing each mobile phone motherboard bracket to be painted and discharged at a uniform speed, improving the painting effect and processing efficiency.

[0008] According to the above technical solution, a heating device is provided above the conveyor belt. The heating device includes a heat generation structure and a heating structure. The heat generation structure includes a blower, a heating pipe, and an air outlet cylinder. The blower is fixedly connected above the support plate. The heating pipe is fixedly connected below the blower. The air outlet cylinder is fixedly connected to the front end of the heating pipe. The heating structure includes a slow-down net, a connecting rod, a fixed shaft, a diversion inclined plate, a feeding hose, and a rubber collar. The slow-down net is fixedly connected inside the spray gun. The connecting rod is fixedly connected to the front and rear ends of the inner wall of the air outlet cylinder. The fixed shaft is fixedly connected to the inner side of the connecting rod. The diversion inclined plate is fixedly connected to the surface of the fixed shaft. The feeding hose is fixedly connected to the right side of the spray gun. The rubber collar is fixedly connected to the front end of the air outlet cylinder. A heating wire is provided inside the heating pipe. Mesh holes are opened at the bottom of the air outlet cylinder. The feeding hose is fixedly connected to the left side of the storage bucket. The rubber collar is fixedly connected to the rear side of the spray gun. An air inlet is opened at the rear side of the spray gun. The heating pipe penetrates through the top end of the support plate. When the blower is started, the blower blows air into the heating pipe. The heating pipe heats the air to generate hot air. The hot air enters the air outlet cylinder and blows onto the mobile phone motherboard bracket through the mesh holes opened at the bottom of the air outlet cylinder, quickly drying the paint on the mobile phone motherboard and improving the working efficiency. A part of the hot air enters the spray gun through the air outlet cylinder to heat the paint, making the paint spraying more uniform, and at the same time increasing the viscosity to make the painting more stable. After the hot air enters the air outlet cylinder, it contacts the diversion inclined plate and flows along the arc-shaped groove formed between the diversion inclined plate and the fixed shaft to form a vortex, concentrating the temperature and having a higher heating efficiency. Moreover, after the paint flows into the spray gun from the feeding hose, its flow rate is slowed down by the slow-down net, allowing the paint to be heated for a longer time and having a better heating effect, further improving the painting quality.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing a pressing inclined block, a pressed inclined block, a sliding frame, and a sliding groove, after painting a mobile phone motherboard bracket is completed, the air cylinder drives the spray gun to rise, releasing the extrusion of the pressed inclined block by the pressing inclined block. At this time, the spring provided between the pressed inclined block and the sliding frame rebounds to reset the pressed inclined block, thereby opening and resetting the limiting plate, facilitating the entry of the next mobile phone motherboard bracket, and further improving the processing efficiency and stability. In the present invention, by providing an eccentric main shaft, an X-shaped connecting rod, a coupling shaft, and a housing, the X-shaped connecting rod drives the four coupling shafts to rotate to comprehensively stir the paint in the storage bucket. The four coupling shafts stir the paint in four directions in the storage bucket, avoiding the problem of poor stirring effect caused by excessive resistance, and being able to comprehensively stir every corner of the paint, making the stirring more uniform, enabling the paint to flow more quickly, and further avoiding precipitation. In the present invention, by providing a linkage belt, a push plate, a dial plate, and a runner, the rotation of the eccentric main shaft drives the operation of the reducer. The reducer drives the runner to rotate slowly, and the runner then drives the dial plate to rotate. The dial plate rotates once to push the push plate once, causing the push plate to move forward. The forward movement of the push plate drives the linkage belt to move forward, thereby intermittently conveying the mobile phone motherboard bracket by the conveyor belt, enabling each mobile phone motherboard bracket to be painted at a uniform speed and discharged at a uniform speed, improving the painting effect and processing efficiency. In the present invention, by providing a slow-down net, a connecting rod, a fixed shaft, and a diversion inclined plate, after the hot air enters the air duct, it contacts the diversion inclined plate and flows along the arc-shaped groove formed between the diversion inclined plate and the fixed shaft to form a vortex, causing the temperature to gather. The heating efficiency is higher. Moreover, after the paint flows from the feed hose into the spray gun, its flow rate is slowed down by the slow-down net, allowing the paint to be heated for a longer time and achieving a better heating effect, further improving the painting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0011] In the drawings: Figure 1 is the three-axis orthographic overall structural schematic diagram of the present invention; Figure 2 is the three-axis orthographic sectional structural schematic diagram of the front side of the present invention; Figure 3 is the three-axis orthographic structural schematic diagram of the front side of the limiting device of the present invention; Figure 4 is the present invention Figure 3 the enlarged structural schematic diagram of A in; Figure 5 is the three-axis orthographic sectional structural schematic diagram of the front side of the anti-sedimentation device of the present invention; Figure 6 is the present invention Figure 5 the enlarged structural schematic diagram of B in; Figure 7 is the three-axis orthographic sectional structural schematic diagram of the intermittent conveying device of the present invention; Figure 8 is the present invention Figure 7 the enlarged structural schematic diagram of C in; Figure 9 is the left-side sectional structural schematic diagram of the heating device of the present invention; In the figure: 1, support frame; 2, limiting device; 21, support plate; 22, cylinder; 23, spray gun; 24, limiting plate; 25, downward pressing inclined block; 26, pressed inclined block; 27, sliding frame; 28, chute; 3, anti-sedimentation device; 31, storage bucket; 32, rotating shaft; 33, stirring paddle; 34, eccentric main shaft; 35, X-shaped connecting rod; 36, coupling shaft; 37, housing; 4, intermittent conveying device; 41, transmission shaft; 42, conveyor belt; 43, linkage belt; 44, push plate; 45, dialing plate; 46, runner; 47, reducer; 5, heating device; 51, fan; 52, heating pipe; 53, air outlet cylinder; 54, slow-down net; 55, connecting rod; 56, fixed shaft; 57, guiding inclined plate; 58, feeding hose; 59, rubber sleeve ring. Detailed implementation manners

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0013] Please refer to Figures 1-4, an embodiment of the present invention is: a painting device for producing a mobile phone motherboard bracket assembly, including a support frame 1, the support frame 1 further includes a limiting device 2, the limiting device 2 includes a limiting structure and a reciprocating structure, the limiting structure includes a support plate 21, a cylinder 22, a spray gun 23, a limiting plate 24, the support plate 21 is fixedly connected above the support frame 1, the spray gun 23 is fixedly connected to the top of the support plate 21, the cylinder 22 is fixedly connected to the top of the spray gun 23, the limiting plate 24 is arranged below the spray gun 23. Start the cylinder 22, and the cylinder 22 drives the spray gun 23 to press down to adjust the height for painting the mobile phone motherboard bracket, preventing uneven spraying caused by too long or too short spraying distance during painting. When painting, the mobile phone motherboard bracket is clamped by the limiting plate 24, preventing the mobile phone motherboard bracket from moving randomly, improving the painting efficiency and accuracy, and the limiting plate 24 can prevent paint from splashing, avoiding affecting the processing environment and wasting materials. The reciprocating structure includes a pressing inclined block 25, a pressed inclined block 26, a sliding frame 27, and a sliding groove 28. The pressing inclined block 25 is fixedly connected to the surface of the spray gun 23, the pressed inclined block 26 is slidably connected below the pressing inclined block 25, the sliding frame 27 is fixedly connected to the inner side of the support plate 21, the sliding groove 28 is opened at the bottom of the sliding frame 27, the limiting plate 24 is fixedly connected to the bottom end of the pressed inclined block 26, the limiting plate 24 is slidably connected to the inner side of the sliding groove 28, the pressed inclined block 26 is slidably connected to the inner side of the sliding frame 27, and a spring is arranged between the pressed inclined block 26 and the inner side of the sliding frame 27. After the cylinder 22 drives the spray gun 23 to press down, the spray gun 23 drives the pressing inclined block 25 to press down, and the inclined surface at the bottom end of the pressing inclined block 25 squeezes the inclined surface at the top end of the pressed inclined block 26 to make the pressed inclined block 26 move inward, thereby driving the limiting plate 24 to move inward, and the limiting plate 24 moves inward to clamp the mobile phone motherboard bracket tighter, making the mobile phone motherboard bracket more stable during processing, further improving the processing accuracy. And after painting one mobile phone motherboard bracket is completed, the cylinder 22 drives the spray gun 23 to rise, so that the pressing inclined block 25 releases the extrusion on the pressed inclined block 26. At this time, the spring arranged between the pressed inclined block 26 and the sliding frame 27 rebounds to reset the pressed inclined block 26, thereby opening and resetting the limiting plate 24, facilitating the entry of the next mobile phone motherboard bracket, and further improving the processing efficiency and stability.

[0014] Working principle: Start the cylinder 22, and the cylinder 22 drives the spray gun 23 to press down to adjust the height for painting the mobile phone motherboard bracket, preventing uneven spraying caused by too long or too short spraying distance during painting. When painting, the mobile phone motherboard bracket is clamped by the limiting plate 24 to prevent the mobile phone motherboard bracket from moving randomly, improving the painting efficiency and accuracy. Moreover, the limiting plate 24 can prevent paint from splashing, avoiding affecting the processing environment and wasting materials. After the cylinder 22 drives the spray gun 23 to press down, the spray gun 23 drives the downward pressing inclined block 25 to press down. The bottom inclined surface of the downward pressing inclined block 25 squeezes the top inclined surface of the pressed inclined block 26 to make the pressed inclined block 26 move inward, thereby driving the limiting plate 24 to move inward. The inward movement of the limiting plate 24 clamps the mobile phone motherboard bracket tighter, making the mobile phone motherboard bracket more stable during processing and further improving the processing accuracy. After painting one mobile phone motherboard bracket is completed, the cylinder 22 drives the spray gun 23 to rise, so that the downward pressing inclined block 25 releases the extrusion on the pressed inclined block 26. At this time, the spring provided between the pressed inclined block 26 and the sliding frame 27 rebounds to reset the pressed inclined block 26, thereby opening and resetting the limiting plate 24, facilitating the entry of the next mobile phone motherboard bracket, and further improving the processing efficiency and stability.

[0015] Please refer to Figures 5-6, on the basis of the above-described embodiments, in another embodiment of the present invention, a sediment prevention device 3 is included. The sediment prevention device 3 includes a stirring structure and a uniform structure. The stirring structure includes a storage barrel 31, a rotating shaft 32, and stirring paddles 33. The storage barrel 31 is fixedly connected to the right side of the support plate 21. The rotating shaft 32 is rotatably connected to the bottom of the storage barrel 31. The stirring paddles 33 are fixedly connected to the surface of the rotating shaft 32. When processing the mobile phone motherboard bracket, the motor is started. The motor drives the rotating shaft 32 to rotate through the transmission assembly. The rotating shaft 32 drives the stirring paddles 33 to rotate. The stirring paddles 33 stir the paint in the storage barrel 31 to prevent the paint from precipitating and stratifying, resulting in uneven distribution of useful substances and unstable spraying quality. The uniform structure includes an eccentric main shaft 34, an X-shaped connecting rod 35, a coupling shaft 36, and a housing 37. The eccentric main shaft 34 rotatably penetrates the bottom end of the storage barrel 31. The X-shaped connecting rod 35 is fixedly connected to the surface of the eccentric main shaft 34. The coupling shaft 36 is hingedly connected below the X-shaped connecting rod 35. The housing 37 is fixedly connected to the upper part of the storage barrel 31. The rotating shaft 32 rotatably penetrates the top end of the storage barrel 31. The storage barrel 31 is fixedly connected to the upper part of the support frame 1. The eccentric main shaft 34 rotatably penetrates the top of the housing 37. A motor is provided at the top end of the eccentric main shaft 34 and is fixedly connected above the housing 37. The housing 37 is fixedly connected to the surface of the cylinder 22. The sliding frame 27 is fixedly connected to the left side of the storage barrel 31. After the motor is started, it drives the eccentric main shaft 34 to rotate. The eccentric main shaft 34 drives the X-shaped connecting rod 35 to rotate in a circle. The X-shaped connecting rod 35 drives the four coupling shafts 36 to rotate to comprehensively stir the paint in the storage barrel 31. The four coupling shafts 36 stir the paint in four directions in the storage barrel 31, avoiding the problem of poor stirring effect caused by excessive resistance, and being able to comprehensively stir every corner of the paint, making the stirring more uniform, enabling the paint to flow more quickly, and further avoiding precipitation.

[0016] Working principle: When processing the mobile phone motherboard bracket, the motor is started. The motor drives the rotating shaft 32 to rotate through the transmission assembly. The rotating shaft 32 drives the stirring paddles 33 to rotate. The stirring paddles 33 stir the paint in the storage barrel 31 to prevent the paint from precipitating and stratifying, resulting in uneven distribution of useful substances and unstable spraying quality. After the motor is started, it drives the eccentric main shaft 34 to rotate. The eccentric main shaft 34 drives the X-shaped connecting rod 35 to rotate in a circle. The X-shaped connecting rod 35 drives the four coupling shafts 36 to rotate to comprehensively stir the paint in the storage barrel 31. The four coupling shafts 36 stir the paint in four directions in the storage barrel 31, avoiding the problem of poor stirring effect caused by excessive resistance, and being able to comprehensively stir every corner of the paint, making the stirring more uniform, enabling the paint to flow more quickly, and further avoiding precipitation.

[0017] Please refer to Figures 7-9, on the basis of the above embodiments, in another embodiment of the present invention, it includes an intermittent conveying device 4. The intermittent conveying device 4 includes a conveying structure and an intermittent structure. The conveying structure includes a transmission shaft 41, a conveyor belt 42, and a linkage belt 43. The transmission shaft 41 is hinged to the inner side of the support frame 1. The conveyor belt 42 is drivingly connected to the surface of the transmission shaft 41. The linkage belt 43 is fixedly connected to the right side of the conveyor belt 42. The linkage belt 43 drives the conveyor belt 42 to rotate on the transmission shaft 41. The conveyor belt 42 conveys the mobile phone motherboard bracket to a specified position for painting, eliminating the need for manual placement and improving the feeding efficiency. The intermittent structure includes a push plate 44, a dial plate 45, a runner 46, and a reducer 47. The push plate 44 is fixedly connected to the right side of the linkage belt 43. The reducer 47 is drivingly connected to the bottom end of the eccentric main shaft 34. The runner 46 is fixedly connected below the reducer 47. The dial plate 45 is fixedly connected to the surface of the runner 46. The runner 46 is hinged to the top end of the support frame 1. The reducer 47 is hinged to the bottom end of the storage barrel 31. The rotation of the eccentric main shaft 34 drives the reducer 47 to operate. The reducer 47 drives the runner 46 to rotate slowly. The runner 46 then drives the dial plate 45 to rotate. The rotation of the dial plate 45 toggles the push plate 44 once, causing the push plate 44 to move forward. The forward movement of the push plate 44 drives the linkage belt 43 to move forward, thereby intermittently conveying the mobile phone motherboard bracket by the conveyor belt 42, enabling each mobile phone motherboard bracket to be painted at a uniform speed and discharged at a uniform speed, improving the painting effect and processing efficiency. Above the conveyor belt 42, there is a heating device 5. The heating device 5 includes a heating structure and a heating structure. The heating structure includes a blower 51, a heating pipe 52, and an air outlet cylinder 53. The blower 51 is fixedly connected above the support plate 21. The heating pipe 52 is fixedly connected below the blower 51. The air outlet cylinder 53 is fixedly connected to the front end of the heating pipe 52. When the blower 51 is started, the blower 51 blows air into the heating pipe 52. The heating pipe 52 heats the air to generate hot air. The hot air enters the air outlet cylinder 53 and blows onto the mobile phone motherboard bracket through the mesh holes opened at the bottom of the air outlet cylinder 53, quickly drying the paint on the mobile phone motherboard and improving the work efficiency. The heating structure includes a slow-down net 54, a connecting rod 55, a fixed shaft 56, a guiding inclined plate 57, a feeding hose 58, and a rubber sleeve 59. The slow-down net 54 is fixedly connected inside the spray gun 23. The connecting rod 55 is fixedly connected to the front and rear ends of the inner wall of the air outlet cylinder 53. The fixed shaft 56 is fixedly connected to the inner side of the connecting rod 55. The guiding inclined plate 57 is fixedly connected to the surface of the fixed shaft 56. The feeding hose 58 is fixedly connected to the right side of the spray gun 23. The rubber sleeve 59 is fixedly connected to the front end of the air outlet cylinder 53. A heating wire is provided inside the heating pipe 52. Mesh holes are opened at the bottom of the air outlet cylinder 53. The feeding hose 58 is fixedly connected to the left side of the storage barrel 31. The rubber sleeve 59 is fixedly connected to the rear side of the spray gun 23. An air inlet is opened at the rear side of the spray gun 23. The heating pipe 52 passes through the top end of the support plate 21. Part of the hot air enters the spray gun 23 through the air outlet cylinder 53, heating the paint, making the paint spraying more uniform, and at the same time increasing the viscosity to make the painting more stable. After the hot air enters the air outlet cylinder 53, it contacts the guiding inclined plate 57.The flow along the arc-shaped groove formed between the diversion inclined plate 57 and the fixed shaft 56 forms a vortex, which gathers the temperature, resulting in higher heating efficiency. Moreover, after the paint flows into the paint gun 23 from the feed hose 58, its flow rate is slowed down by the slow-down net 54, allowing the paint to be heated for a longer time and achieving a better heating effect, further improving the painting quality.

[0018] Working principle: The linkage belt 43 drives the conveyor belt 42 to rotate on the transmission shaft 41. The conveyor belt 42 transports the mobile phone motherboard bracket to the designated position for painting, eliminating the need for manual placement and improving the feeding efficiency. The eccentric main shaft 34 rotates to drive the reducer 47 to operate. The reducer 47 drives the runner 46 to rotate slowly, and the runner 46 then drives the dial 45 to rotate. The dial 45 rotates once to move the push plate 44 forward. The forward movement of the push plate 44 drives the linkage belt 43 forward, thereby intermittently transporting the mobile phone motherboard bracket by the conveyor belt 42, enabling each mobile phone motherboard bracket to be painted and discharged at a uniform speed, improving the painting effect and processing efficiency. Start the blower 51. The blower 51 blows air into the heating pipe 52. The heating pipe 52 heats the air to generate hot air. The hot air enters the air outlet cylinder 53 and blows onto the mobile phone motherboard bracket through the mesh holes opened at the bottom of the air outlet cylinder 53, quickly drying the paint on the mobile phone motherboard and improving the working efficiency. A part of the hot air enters the paint gun 23 through the air outlet cylinder 53 to heat the paint, making the paint spraying more uniform. At the same time, it increases the viscosity to make the painting more stable. After the hot air enters the air outlet cylinder 53, it contacts the diversion inclined plate 57. The flow along the arc-shaped groove formed between the diversion inclined plate 57 and the fixed shaft 56 forms a vortex, which gathers the temperature, resulting in higher heating efficiency. Moreover, after the paint flows into the paint gun 23 from the feed hose 58, its flow rate is slowed down by the slow-down net 54, allowing the paint to be heated for a longer time and achieving a better heating effect, further improving the painting quality.

[0019] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0020] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A painting device for producing a mobile phone motherboard bracket assembly, including a support frame (1), characterized in that: It further includes a limiting device (2), and the limiting device (2) includes a limiting structure and a reciprocating structure; The limiting structure includes a support plate (21), a cylinder (22), a spray gun (23), and a limiting plate (24). The support plate (21) is fixedly connected above the support frame (1). The spray gun (23) is fixedly connected to the top of the support plate (21). The cylinder (22) is fixedly connected to the top of the spray gun (23). The limiting plate (24) is arranged below the spray gun (23); The reciprocating structure includes a downward pressing inclined block (25), a pressed inclined block (26), a sliding frame (27), and a sliding groove (28). The downward pressing inclined block (25) is fixedly connected to the surface of the spray gun (23). The pressed inclined block (26) is slidably connected below the downward pressing inclined block (25). The sliding frame (27) is fixedly connected to the inner side of the support plate (21). The sliding groove (28) is opened at the bottom of the sliding frame (27).

2. The painting device for producing a mobile phone motherboard bracket assembly according to claim 1, characterized in that: The limiting plate (24) is fixedly connected to the bottom end of the pressed inclined block (26). The limiting plate (24) is slidably connected to the inner side of the sliding groove (28). The pressed inclined block (26) is slidably connected to the inner side of the sliding frame (27). A spring is arranged between the pressed inclined block (26) and the sliding frame (27).

3. A painting device for producing a mobile phone motherboard bracket assembly according to claim 2, characterized in that: A sediment prevention device (3) is arranged on the right side of the support plate (21). The sediment prevention device (3) includes a stirring structure and a uniform structure. The stirring structure includes a storage bucket (31), a rotating shaft (32), and a stirring paddle (33). The storage bucket (31) is fixedly connected to the right side of the support plate (21). The rotating shaft (32) is rotatably connected to the bottom of the storage bucket (31). The stirring paddle (33) is fixedly connected to the surface of the rotating shaft (32). The uniform structure includes an eccentric main shaft (34), an X-shaped connecting rod (35), a coupling shaft (36), and a housing (37). The eccentric main shaft (34) rotatably penetrates the bottom end of the storage bucket (31). The X-shaped connecting rod (35) is fixedly connected to the surface of the eccentric main shaft (34). The coupling shaft (36) is hingedly connected below the X-shaped connecting rod (35). The housing (37) is fixedly connected above the storage bucket (31).

4. A painting device for producing a mobile phone motherboard bracket assembly according to claim 3, characterized in that: The rotating shaft (32) rotatably penetrates the top end of the storage bucket (31). The storage bucket (31) is fixedly connected above the support frame (1). The eccentric main shaft (34) rotatably penetrates the top of the housing (37). A motor is arranged at the top end of the eccentric main shaft (34) and the motor is fixedly connected above the housing (37). The housing (37) is fixedly connected to the surface of the cylinder (22). The sliding frame (27) is fixedly connected to the left side of the storage bucket (31).

5. A painting device for producing a mobile phone motherboard bracket assembly according to claim 4, characterized in that: Below the eccentric main shaft (34), there is an intermittent conveying device (4). The intermittent conveying device (4) includes a conveying structure and an intermittent structure. The conveying structure includes a transmission shaft (41), a conveyor belt (42), and a linkage belt (43). The transmission shaft (41) is hinged to the inner side of the support frame (1). The conveyor belt (42) is drivingly connected to the surface of the transmission shaft (41). The linkage belt (43) is fixedly connected to the right side of the conveyor belt (42). The intermittent structure includes a push plate (44), a dial plate (45), a runner (46), and a reducer (47). The push plate (44) is fixedly connected to the right side of the linkage belt (43). The reducer (47) is drivingly connected to the bottom end of the eccentric main shaft (34). The runner (46) is fixedly connected below the reducer (47). The dial plate (45) is fixedly connected to the surface of the runner (46).

6. The painting device for producing a mobile phone motherboard bracket assembly according to claim 5, characterized in that: The runner (46) is hinged to the top end of the support frame (1). The reducer (47) is hinged to the bottom end of the storage bin (31).

7. A painting device for producing a mobile phone motherboard bracket assembly according to claim 6, characterized in that: Above the conveyor belt (42), there is a heating device (5). The heating device (5) includes a heating structure and a heating structure. The heating structure includes a blower (51), a heating pipe (52), and an air outlet cylinder (53). The blower (51) is fixedly connected above the support plate (21). The heating pipe (52) is fixedly connected below the blower (51). The air outlet cylinder (53) is fixedly connected to the front end of the heating pipe (52). The heating structure includes a slow-down net (54), a connecting rod (55), a fixed shaft (56), a guiding inclined plate (57), a feeding hose (58), and a rubber sleeve (59). The slow-down net (54) is fixedly connected inside the spray gun (23). The connecting rod (55) is fixedly connected to the front and rear ends of the inner wall of the air outlet cylinder (53). The fixed shaft (56) is fixedly connected to the inner side of the connecting rod (55). The guiding inclined plate (57) is fixedly connected to the surface of the fixed shaft (56). The feeding hose (58) is fixedly connected to the right side of the spray gun (23). The rubber sleeve (59) is fixedly connected to the front end of the air outlet cylinder (53).

8. A painting device for producing a mobile phone motherboard bracket assembly according to claim 7, characterized in that: Inside the heating pipe (52), there is a heating wire. The bottom of the air outlet cylinder (53) is provided with mesh holes. The feeding hose (58) is fixedly connected to the left side of the storage bin (31). The rubber sleeve (59) is fixedly connected to the rear side of the spray gun (23). An air inlet is provided at the rear side of the spray gun (23). The heating pipe (52) passes through the top end of the support plate (21).

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