A double-line integrated intelligent suspension conveying and spraying production line

Abstract

The application discloses a double-line integrated intelligent suspension conveying and spraying production line, and particularly relates to the field of suspension conveying. The device is provided with a plurality of air conditioner housings suspended on a suspension conveyor. A smearing mechanism is arranged at the bottom of the suspension conveyor. A spraying box is arranged at the bottom of the suspension conveyor. A drying and curing box is arranged at the bottom of the suspension conveyor. The spraying box is used for spraying the outer surface of the air conditioner housing. The smearing mechanism is used for spraying the inner wall of the circular hole of the air conditioner housing. The smearing mechanism comprises a fixing box, and a spraying assembly is arranged at the rear side of the fixing box. The spraying assembly is intermittently driven to move forward and backward by the electric push rod, so that the nozzle penetrates into the inner wall of the circular hole of the air conditioner housing. After the hose is connected to the external pump, the circular outer nozzle of the nozzle can be used to spray the inner wall of the circular hole of the air conditioner housing, so that the rust-prone part of the inner wall of the circular hole is fully protected.

Description

Technical Field

[0001] This invention relates to the field of overhead conveyor technology, and more specifically, to an intelligent overhead conveyor spraying production line with dual lines integrated into one. Background Technology

[0002] Air conditioners have become an indispensable household appliance in people's daily lives and business environments, widely used in residences, office buildings, shopping malls, hospitals, and other places. As the part directly facing consumers, the outer casing not only protects the internal precision components but also directly showcases the product's image. Therefore, the coating process of the casing is particularly important. From a product quality perspective, a high-quality coating can form a uniform and dense protective film on the surface of the air conditioner casing, effectively resisting the erosion of the external environment, such as humid air, dust particles, and possible contact with chemicals, thereby ensuring the structural integrity and stability of the casing and laying the foundation for the long-term stable operation of the air conditioner. In terms of appearance, the coating process directly determines the color, texture, and gloss of the air conditioner casing. A refined coating effect can give the air conditioner casing a stylish and beautiful appearance, satisfying different consumers' pursuit of home aesthetics and enhancing the product's attractiveness and competitiveness in the market. Regarding service life, a good coating can slow down the aging and wear rate of the casing caused by long-term use, extending the overall lifespan of the air conditioner and reducing resource waste and replacement costs for consumers.

[0003] In the air conditioning production process, the spraying of the air conditioner casing is crucial, as it directly affects the product's appearance, protective performance, and service life. However, the spraying equipment currently used, especially the common spraying boxes, has significant limitations. In actual production, when the overhead conveyor transports the air conditioner casing at a stable and continuous speed, the existing spraying boxes are only capable of spraying the outer wall of the air conditioner casing.

[0004] Air conditioner casings are typically square thin plates with a central hole for installing a grid. Due to the special geometry and position of this hole, there are many hard-to-reach dead corners on the inner wall during the spraying process. As the overhead conveyor continuously and uniformly transports the air conditioner casing through the spraying area, the nozzles of traditional spraying boxes cannot effectively cover these dead corners, making it difficult to spray the inner wall of the hole evenly and comprehensively. Summary of the Invention

[0005] One objective of this invention is to propose a dual-line integrated intelligent overhead conveyor spraying production line. The problem this invention aims to solve is that existing spraying equipment has many hard-to-reach dead zones during the spraying process. When the overhead conveyor continuously and uniformly transports the air conditioner casing through the spraying area, the nozzles of traditional spraying boxes cannot effectively cover these dead zones, making it difficult to evenly and comprehensively spray the inner walls of the round holes.

[0006] According to an embodiment of the present invention, a dual-line integrated intelligent overhead conveyor spraying production line includes an overhead conveyor, on which several air conditioner housings are suspended, an application mechanism is provided at the bottom of the overhead conveyor, a spraying box is provided at the bottom of the overhead conveyor, and a drying and curing box is provided at the bottom of the overhead conveyor. The spraying box is used to spray the outer surface of the air conditioner casing, the coating mechanism is used to spray the inner wall of the round hole of the air conditioner casing, and the drying and curing box is used to dry and cure the outer wall of the air conditioner casing after spraying. The coating mechanism includes a fixed box, with a spraying assembly located at the rear of the fixed box. The spraying assembly includes an electric push rod three fixedly connected to the front of the fixed box. A nozzle is fixedly connected to the output end of the electric push rod three, and a flexible hose is connected to the nozzle, extending to the inner wall of a circular hole in the air conditioner housing. The air conditioner housing is a square thin plate with a circular hole for installing a grid. Both the outer wall of the air conditioner housing and the inner wall of the circular hole need to be coated with paint for protection to prevent rust. Simultaneously, the end of the flexible hose furthest from the nozzle is connected to an external pump to pump paint into the nozzle. The spraying box is used by existing spraying devices to spray paint up and down on the outer wall of the air conditioner housing during transport. The coating and drying curing box dries and cures the outer paint of the air conditioner casing during the conveying process. When spraying the air conditioner casing, the existing spraying box can usually only spray the outer wall of the air conditioner casing. However, the inner wall of the round hole of the air conditioner casing is usually a dead corner that is difficult to spray. Therefore, in the production line where the air conditioner casing is slowly and continuously transported by the overhead conveyor, the electric push rod is intermittently driven to move back and forth to drive the nozzle to penetrate into the inner wall of the round hole of the air conditioner casing. After being connected to the external pump through the hose, the inner wall of the round hole of the air conditioner casing can be sprayed through the circular external spray hole of the nozzle, ensuring that this easily rusted part of the round hole is fully protected.

[0007] In a preferred embodiment, a drive assembly is provided on the rear side of the fixed box. The drive assembly includes an electric push rod fixedly connected to the rear side of the fixed box. A movable frame is fixedly connected to the output end of the electric push rod. A connecting assembly is provided inside the movable frame. The electric push rod drives the movable frame to move linearly back and forth. At the same time, the fixed box is used to support and install the electric push rod.

[0008] In a preferred embodiment, a fixed box is fixedly connected to the rear side of the movable frame, a motor is fixedly connected to the inner wall of the fixed box, a rotating rod is fixedly connected to the output end of the motor via a coupling, a gear one is fixedly connected to the outer wall of the rotating rod, a connecting sleeve one is rotatably connected to the inner wall of the movable frame, and a gear two is fixedly connected to the outer wall of the connecting sleeve one. The gear one and gear two mesh with each other and can drive the motor to drive the rotating rod to rotate. Through the transmission of gear one and gear two, the connecting sleeve one and the rotating rod rotate synchronously.

[0009] In a preferred embodiment, the connecting assembly includes a coaxial rod slidably connected to the inner wall of the connecting sleeve. The outer wall of the coaxial rod has a plurality of keyways adapted to the inner wall of the connecting sleeve. The keyways on the inner wall of the coaxial rod are adapted to the inner wall of the connecting sleeve, so that the coaxial rod can move linearly back and forth on the inner wall of the connecting sleeve while the two can rotate synchronously.

[0010] In a preferred embodiment, a bearing plate is fixedly connected to the front end of the coaxial rod. Three trapezoidal grooves are provided on the front side of the bearing plate. Trapezoidal sliders are slidably connected to the inner walls of the three trapezoidal grooves. A coating roller is rotatably connected to the front end of each of the three trapezoidal sliders. The outer walls of the three coating rollers are in contact with the inner wall of the circular hole of the air conditioner housing. The three trapezoidal grooves are used to limit the sliding of the trapezoidal sliders, and the coating rollers are in contact with the inner wall of the circular hole of the air conditioner housing to apply the sprayed paint, preventing dead corners from being generated during spraying.

[0011] In a preferred embodiment, the front end of the connecting sleeve is hinged with three hinge rods. The ends of the three hinge rods away from the connecting sleeve are respectively hinged to three trapezoidal sliders. When the coaxial rod moves backward, it drives the three trapezoidal sliders to move outward synchronously through the three hinge rods.

[0012] In a preferred embodiment, a second electric push rod is fixedly connected to the rear end of the fixed box. A connecting plate is fixedly connected to the output end of the second electric push rod, and a connecting block is fixedly connected to the rear side of the connecting plate. The inner wall of the connecting block is rotatably connected to the rear end of the coaxial rod. The inner wall of the connecting block is adapted to the rear end of the coaxial rod, so that the coaxial rod can only rotate on the inner wall of the connecting block. Therefore, when the second electric push rod moves the connecting plate back and forth, it will not affect the rotation of the coaxial rod. When it is necessary to apply the outer paint evenly to the inner wall of the round hole of the air conditioner casing, the first electric push rod can be driven to move the moving frame forward, so that the three coating rollers are positioned... At the inner wall of the circular hole in the air conditioner casing, the second electric push rod drives the connecting plate to move backward. Through the three hinge rods, the three trapezoidal sliders move outward synchronously, so that the three coating rollers come into contact with the inner wall of the circular hole in the air conditioner casing. At this time, the drive motor drives the rotating rod and gear one to rotate. Through gear two, the connecting sleeve one rotates, so that the three coating rollers spread evenly around the inner wall of the circular hole in the air conditioner casing. This greatly improves the uniformity and efficiency of the paint coating on the inner wall of the circular hole in the air conditioner casing, and effectively solves the problems of uneven paint layer and dead corners after spraying the inner wall of the circular hole in the traditional process.

[0013] In a preferred embodiment, the traction chain of the overhead conveyor is provided with a plurality of suspension plates, and two suspension members are provided at the bottom of the suspension plates. The two suspension members are symmetrically arranged at the bottom of the suspension plates. The suspension plates are installed on the traction chain of the overhead conveyor, so that the traction chain can drive the suspension plates to move.

[0014] In a preferred embodiment, the suspension component includes two hinge blocks hinged to the bottom of the suspension plate, and a connecting sleeve is fixedly connected to the bottom of each of the two hinge blocks. The symmetrical arrangement of the two hinge blocks ensures that the two hinge blocks can rotate at the bottom of the suspension plate.

[0015] In a preferred embodiment, a piston is slidably connected to the inner wall of the connecting sleeve two, and a hook is fixedly connected to the bottom of the piston. The hook extends to the bottom of the connecting sleeve two, and a spring is wound around the outer wall of the hook. One end of the spring is fixedly connected to the piston, and the other end of the spring is fixedly connected to the inner wall of the connecting sleeve two. After the four corner holes of the air conditioner housing are suspended by the two hooks, the springs allow the air conditioner housing to rotate and extend around the bottom of the suspension plate. When the applicator roller contacts the inner wall of the round hole of the air conditioner housing, the slow and continuous operation of the suspension conveyor allows the applicator roller to support the inner wall of the round hole of the air conditioner housing, thereby stretching the two hooks over and preventing them from affecting the continuous transport of the suspension conveyor, thus ensuring the coordination of the overall device.

[0016] The beneficial effects of this invention are: This invention features a spraying assembly that, during the spraying of the air conditioner casing, intermittently drives an electric push rod to move back and forth, causing the nozzle to penetrate the inner wall of the circular hole in the air conditioner casing. After being connected to an external pump via a hose, the inner wall of the circular hole in the air conditioner casing can be sprayed through the circular external spray nozzle of the nozzle, ensuring that this easily rusted part of the circular hole is adequately protected.

[0017] This invention, by incorporating a connecting assembly, allows for the application of paint evenly to the inner wall of a circular hole in the air conditioner casing. When this is necessary, an electric push rod moves a movable frame forward, positioning three application rollers at the inner wall of the hole. Simultaneously, an electric push rod moves a connecting plate backward, and three hinged rods drive three trapezoidal sliders to move outward synchronously, bringing the application rollers into contact with the inner wall of the hole. A drive motor then rotates a rotating rod and gear one, which in turn rotates a connecting sleeve. This allows the three application rollers to evenly coat the inner wall of the hole, significantly improving the uniformity and efficiency of paint application and effectively solving the problems of uneven paint layers and dead corners after spraying the inner wall of the hole in traditional processes.

[0018] This invention incorporates a suspension component. When the applicator roller contacts the inner wall of the circular hole in the air conditioner housing, the slow and continuous operation of the suspension conveyor allows the applicator roller to support the inner wall of the circular hole in the air conditioner housing, thereby stretching the two hooks and preventing them from affecting the continuous transport of the suspension conveyor, thus ensuring the overall coordination of the device. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the movable frame in this invention.

[0021] Figure 3 This is a cross-sectional structural diagram of the movable frame in this invention.

[0022] Figure 4 This is a cross-sectional two-dimensional structural diagram of the movable frame in this invention.

[0023] Figure 5 This is an exploded structural diagram of the driving component in this invention.

[0024] Figure 6 This is a two-dimensional cross-sectional structural diagram of the connecting sleeve 2 in this invention.

[0025] Figure 7 This is a schematic diagram of the connecting sleeve one in the present invention.

[0026] Figure 8 for Figure 4 A magnified structural diagram of point A in the middle.

[0027] Figure 9 for Figure 5 A magnified structural diagram at point B in the middle.

[0028] In the diagram: 1. Suspended conveyor; 2. Coating mechanism; 3. Spraying box; 4. Drying and curing box; 5. Air conditioner casing; 6. Suspension plate; 21. Drive assembly; 22. Connecting assembly; 23. Spraying assembly; 61. Suspension component; 201. Fixing box; 211. Electric push rod one; 212. Moving frame; 213. Fixing box; 214. Motor; 215. Rotating rod; 216. Gear one; 217. Connecting sleeve one; 218. Gear II; 221. Coaxial rod; 222. Keyway; 223. Bearing plate; 224. Trapezoidal slide; 225. Trapezoidal slider; 226. Application roller; 227. Hinge rod; 228. Electric push rod II; 229. Connecting plate; 2291. Connecting block; 231. Electric push rod III; 232. Spray head; 233. Hose; 611. Hinge block; 612. Connecting sleeve II; 613. Piston; 614. Hook; 615. Spring. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0030] Refer to the instruction manual appendix Figures 1-9 A dual-line integrated intelligent overhead conveyor spraying production line includes an overhead conveyor 1, several air conditioner housings 5 ​​suspended on the overhead conveyor 1, a coating mechanism 2 at the bottom of the overhead conveyor 1, a spraying box 3 at the bottom of the overhead conveyor 1, and a drying and curing box 4 at the bottom of the overhead conveyor 1. The spraying box 3 is used to spray the outer surface of the air conditioner housing 5, the coating mechanism 2 is used to spray the inner wall of the round hole of the air conditioner housing 5, and the drying and curing box 4 is used to dry and cure the outer wall of the air conditioner housing 5 after spraying. The coating mechanism 2 includes a fixed box 201. A spraying assembly 23 is provided on the rear side of the fixed box 201. The spraying assembly 23 includes an electric push rod 231 fixedly connected to the front side of the fixed box 201. A nozzle 232 is fixedly connected to the output end of the electric push rod 231. A hose 233 is connected to the nozzle 232. The nozzle 232 extends to the inner wall of the round hole of the air conditioner housing 5.

[0031] It should be noted that the air conditioner housing 5 is a square thin plate with a round hole in the middle for installing the grid. The outer wall of the air conditioner housing 5 and the inner wall of the round hole need to be sprayed with paint for protection to prevent rust. At the same time, the end of the hose 233 away from the nozzle 232 in this invention is connected to an external pump to pump paint into the nozzle 232. The spraying box 3 is an existing spraying device that sprays the outer wall of the air conditioner housing 5 from top to bottom during the transportation of the air conditioner housing 5. The drying and curing box 4 dries and cures the paint on the air conditioner housing 5 during the transportation of the air conditioner housing 5.

[0032] In this embodiment, the specific implementation scenario is as follows: When spraying the air conditioner housing 5, the existing spraying box 3 can usually only spray the outer wall of the air conditioner housing 5. However, the inner wall of the round hole of the air conditioner housing 5 usually has dead corners that are difficult to spray in place. Therefore, in the production line where the suspended conveyor 1 slowly and continuously transports the air conditioner housing 5, the electric push rod 231 is intermittently driven to move back and forth, causing the nozzle 232 to penetrate into the inner wall of the round hole of the air conditioner housing 5. After being connected to an external pump through the hose 233, the inner wall of the round hole of the air conditioner housing 5 can be sprayed through the circular external spray hole of the nozzle 232, ensuring that this easily rusted part of the round hole is fully protected.

[0033] Refer to the instruction manual appendix Figure 2A drive assembly 21 is provided on the rear side of the fixed box 201. The drive assembly 21 includes an electric push rod 211 fixedly connected to the rear side of the fixed box 201. A movable frame 212 is fixedly connected to the output end of the electric push rod 211. A connecting assembly 22 is provided inside the movable frame 212.

[0034] It should be noted that the electric push rod 211 drives the moving frame 212 to move linearly back and forth, while the fixed box 201 is used to support and install the electric push rod 211.

[0035] Refer to the instruction manual appendix Figure 4 A fixed box 213 is fixedly connected to the rear side of the movable frame 212. A motor 214 is fixedly connected to the inner wall of the fixed box 213. A rotating rod 215 is fixedly connected to the output end of the motor 214 through a coupling. A gear 216 is fixedly connected to the outer wall of the rotating rod 215. A connecting sleeve 217 is rotatably connected to the inner wall of the movable frame 212. A gear 218 is fixedly connected to the outer wall of the connecting sleeve 217. Gear 216 and gear 218 mesh with each other.

[0036] It should be noted that the drive motor 214 can drive the rotating rod 215 to rotate, and through the transmission of gear 1 216 and gear 2 218, the connecting sleeve 1 217 and the rotating rod 215 can rotate synchronously.

[0037] Refer to the instruction manual appendix Figure 7 The connecting component 22 includes a coaxial rod 221 that is slidably connected to the inner wall of the connecting sleeve 217. The outer wall of the coaxial rod 221 is provided with a plurality of keyways 222, which are adapted to the inner wall of the connecting sleeve 217.

[0038] It should be noted that the keyway 222 on the inner wall of the coaxial rod 221 is adapted to the inner wall of the connecting sleeve 217, so that the coaxial rod 221 can move back and forth linearly on the inner wall of the connecting sleeve 217 while the two can rotate synchronously.

[0039] Refer to the instruction manual appendix Figure 7 and Figure 8 The front end of the coaxial rod 221 is fixedly connected to a bearing plate 223. The front side of the bearing plate 223 is provided with three trapezoidal grooves 224. The inner walls of the three trapezoidal grooves 224 are slidably connected to trapezoidal sliders 225. The front ends of the three trapezoidal sliders 225 are rotatably connected to applicator rollers 226. The outer walls of the three applicator rollers 226 are in contact with the inner wall of the round hole of the air conditioner housing 5.

[0040] It should be noted that the three trapezoidal grooves 224 are used to limit the sliding of the trapezoidal slider 225, and the coating roller 226 contacts the inner wall of the round hole of the air conditioner housing 5 to apply the sprayed paint, preventing dead corners from being generated during spraying.

[0041] Refer to the instruction manual appendix Figure 4 The front end of the connecting sleeve 217 is hinged with three hinge rods 227, and the ends of the three hinge rods 227 away from the connecting sleeve 217 are respectively hinged to three trapezoidal sliders 225.

[0042] It should be noted that when the coaxial rod 221 moves backward, it drives the three trapezoidal sliders 225 to move outward synchronously through the three hinged rods 227.

[0043] Refer to the instruction manual appendix Figure 5 The rear end of the fixed box 201 is fixedly connected to an electric push rod 228. The output end of the electric push rod 228 is fixedly connected to a connecting plate 229. The rear side of the connecting plate 229 is fixedly connected to a connecting block 2291. The inner wall of the connecting block 2291 is rotatably connected to the rear end of the coaxial rod 221.

[0044] It should be noted that the inner wall of the connecting block 2291 is adapted to the rear end of the coaxial rod 221, so that the coaxial rod 221 can only rotate on the inner wall of the connecting block 2291. Therefore, when the electric push rod 228 drives the connecting plate 229 to move back and forth, it will not affect the rotation of the coaxial rod 221.

[0045] In this embodiment, the specific implementation scenario is as follows: When it is necessary to evenly apply the outer paint to the inner wall of the circular hole of the air conditioner housing 5, the electric push rod 211 can be driven to move the moving frame 212 forward, so that the three application rollers 226 are located at the inner wall of the circular hole of the air conditioner housing 5. At this time, the electric push rod 228 is driven to move the connecting plate 229 backward, and the three hinge rods 227 drive the three trapezoidal sliders 225 to move outward synchronously, so that the three application rollers 226 come into contact with the inner wall of the circular hole of the air conditioner housing 5. At this time, the drive motor 214 drives the rotating rod 215 and the gear 216 to rotate, and the gear 218 drives the connecting sleeve 217 to rotate, so that the three application rollers 226 evenly apply the paint around the inner wall of the circular hole of the air conditioner housing 5, which greatly improves the uniformity and efficiency of the outer paint application to the inner wall of the circular hole of the air conditioner housing 5, and effectively solves the problem of uneven paint layer and dead corners after spraying the inner wall of the circular hole in the traditional process.

[0046] Refer to the instruction manual appendix Figure 2 The overhead conveyor 1 has several suspension plates 6 on its traction chain, and two suspension components 61 are provided at the bottom of the suspension plates 6. The two suspension components 61 are arranged symmetrically at the bottom of the suspension plates 6.

[0047] It should be noted that the suspension plate 6 is installed on the traction chain of the suspension conveyor 1, so that the traction chain can drive the suspension plate 6 to move.

[0048] Refer to the instruction manual appendix Figure 6The suspension component 61 includes two hinge blocks 611 hinged to the bottom of the suspension plate 6, and the bottom of each of the two hinge blocks 611 is fixedly connected to a connecting sleeve 612.

[0049] It should be noted that the symmetrical arrangement of the two hinge blocks 611 ensures that the two hinge blocks 611 can rotate at the bottom of the suspension plate 6.

[0050] Refer to the instruction manual appendix Figure 6 A piston 613 is slidably connected to the inner wall of the connecting sleeve 612. A hook 614 is fixedly connected to the bottom of the piston 613. The hook 614 extends to the bottom of the connecting sleeve 612. A spring 615 is wound around the outer wall of the hook 614. One end of the spring 615 is fixedly connected to the piston 613, and the other end of the spring 615 is fixedly connected to the inner wall of the connecting sleeve 612.

[0051] It should be noted that after the four round holes at the corners of the air conditioner housing 5 are suspended by two hooks 614, the spring 615 allows the air conditioner housing 5 to rotate and extend around the bottom of the suspension plate 6.

[0052] In this embodiment, the specific implementation scenario is as follows: when the applicator roller 226 contacts the inner wall of the circular hole of the air conditioner housing 5, due to the slow and continuous operation of the overhead conveyor 1, the applicator roller 226 can support the inner wall of the circular hole of the air conditioner housing 5, thereby causing the two hooks 614 to be stretched over, preventing them from affecting the continuous transport of the overhead conveyor 1 and ensuring the coordination of the overall device.

[0053] Working principle: 1. When spraying the air conditioner housing 5, in the production line where the air conditioner housing 5 is slowly and continuously transported by the overhead conveyor 1, the electric push rod 231 is intermittently driven to move back and forth, causing the spray nozzle 232 to penetrate into the inner wall of the round hole of the air conditioner housing 5. After being connected to an external pump through the hose 233, the inner wall of the round hole of the air conditioner housing 5 can be sprayed through the round external spray hole of the spray nozzle 232, ensuring that this easily rusted part of the round hole is fully protected.

[0054] 2. When it is necessary to apply the paint evenly to the inner wall of the circular hole of the air conditioner housing 5, the electric push rod 211 can be driven to move the moving frame 212 forward, so that the three application rollers 226 are located at the inner wall of the circular hole of the air conditioner housing 5. At this time, the electric push rod 228 is driven to move the connecting plate 229 backward. Through the three hinge rods 227, the three trapezoidal sliders 225 are driven to move outward synchronously, so that the three application rollers 226 come into contact with the inner wall of the circular hole of the air conditioner housing 5. At this time, the drive motor 214 drives the rotating rod 215 and the gear 216 to rotate. Through the gear 218, the connecting sleeve 217 is driven to rotate, so that the three application rollers 226 can evenly coat the inner wall of the circular hole of the air conditioner housing 5. This greatly improves the uniformity and efficiency of the paint coating on the inner wall of the circular hole of the air conditioner housing 5, and effectively solves the problem of uneven paint layer and dead corners after spraying the inner wall of the circular hole in the traditional process.

[0055] Third, when the applicator roller 226 comes into contact with the inner wall of the circular hole of the air conditioner housing 5, the slow and continuous operation of the overhead conveyor 1 allows the applicator roller 226 to support the inner wall of the circular hole of the air conditioner housing 5, thereby causing the two hooks 614 to be stretched over, preventing them from affecting the continuous transport of the overhead conveyor 1 and ensuring the coordination of the overall device.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-line integrated intelligent overhead conveyor spraying production line, characterized in that: Includes a suspended conveyor (1), on which several air conditioner housings (5) are suspended, a coating mechanism (2) is provided at the bottom of the suspended conveyor (1), a spraying box (3) is provided at the bottom of the suspended conveyor (1), and a drying and curing box (4) is provided at the bottom of the suspended conveyor (1). The spraying box (3) is used to spray the outer surface of the air conditioner housing (5), the coating mechanism (2) is used to spray the inner wall of the round hole of the air conditioner housing (5), and the drying and curing box (4) is used to dry and cure the outer wall of the air conditioner housing (5) after spraying. The coating mechanism (2) includes a fixed box (201), and a spraying assembly (23) is provided on the rear side of the fixed box (201). The spraying assembly (23) includes an electric push rod three (231) fixedly connected to the front side of the fixed box (201). The output end of the electric push rod three (231) is fixedly connected to a nozzle (232). A hose (233) is connected to the nozzle (232). The nozzle (232) extends to the inner wall of the round hole of the air conditioner housing (5).

2. The intelligent overhead conveyor spraying production line with dual lines as described in claim 1, characterized in that: A drive assembly (21) is provided on the rear side of the fixed box (201). The drive assembly (21) includes an electric push rod (211) fixedly connected to the rear side of the fixed box (201). A movable frame (212) is fixedly connected to the output end of the electric push rod (211). A connecting assembly (22) is provided inside the movable frame (212).

3. The intelligent overhead conveyor spraying production line with dual lines as described in claim 2, characterized in that: A fixed box (213) is fixedly connected to the rear side of the movable frame (212). A motor (214) is fixedly connected to the inner wall of the fixed box (213). A rotating rod (215) is fixedly connected to the output end of the motor (214) through a coupling. A gear one (216) is fixedly connected to the outer wall of the rotating rod (215). A connecting sleeve one (217) is rotatably connected to the inner wall of the movable frame (212). A gear two (218) is fixedly connected to the outer wall of the connecting sleeve one (217). The gear one (216) and the gear two (218) mesh with each other.

4. The intelligent overhead conveyor spraying production line with dual lines as described in claim 3, characterized in that: The connecting assembly (22) includes a coaxial rod (221) that is slidably connected to the inner wall of the connecting sleeve (217). The outer wall of the coaxial rod (221) is provided with a plurality of keyways (222), which are adapted to the inner wall of the connecting sleeve (217).

5. The intelligent overhead conveyor spraying production line with dual lines as described in claim 4, characterized in that: The front end of the coaxial rod (221) is fixedly connected to a bearing plate (223). The front side of the bearing plate (223) is provided with three trapezoidal grooves (224). The inner walls of the three trapezoidal grooves (224) are slidably connected to trapezoidal sliders (225). The front ends of the three trapezoidal sliders (225) are rotatably connected to applicator rollers (226). The outer walls of the three applicator rollers (226) are in contact with the inner wall of the round hole of the air conditioner housing (5).

6. The intelligent overhead conveyor spraying production line with dual lines as described in claim 5, characterized in that: The front end of the connecting sleeve (217) is hinged with three hinge rods (227), and the ends of the three hinge rods (227) away from the connecting sleeve (217) are respectively hinged to three trapezoidal sliders (225).

7. The intelligent overhead conveyor spraying production line with dual lines as described in claim 6, characterized in that: The rear end of the fixed box (201) is fixedly connected to an electric push rod two (228), the output end of the electric push rod two (228) is fixedly connected to a connecting plate (229), the rear side of the connecting plate (229) is fixedly connected to a connecting block (2291), and the inner wall of the connecting block (2291) is rotatably connected to the rear end of the coaxial rod (221).

8. The intelligent overhead conveyor spraying production line with dual lines as described in claim 7, characterized in that: The overhead conveyor (1) has several suspension plates (6) on its traction chain. The bottom of each suspension plate (6) has two suspension components (61) arranged symmetrically at the bottom of the suspension plate (6).

9. The intelligent overhead conveyor spraying production line with dual lines as described in claim 8, characterized in that: The suspension component (61) includes two hinge blocks (611) hinged to the bottom of the suspension plate (6), and the bottom of each of the two hinge blocks (611) is fixedly connected to a connecting sleeve (612).

10. The intelligent overhead conveyor spraying production line with dual lines as described in claim 9, characterized in that: A piston (613) is slidably connected to the inner wall of the connecting sleeve two (612). A hook (614) is fixedly connected to the bottom of the piston (613). The hook (614) extends to the bottom of the connecting sleeve two (612). A spring (615) is wound around the outer wall of the hook (614). One end of the spring (615) is fixedly connected to the piston (613), and the other end of the spring (615) is fixedly connected to the inner wall of the connecting sleeve two (612).

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