Intelligent suspension conveying system for powder spraying production process

Abstract

The invention discloses an intelligent suspension conveying system for a powder spraying production process, and relates to the technical field of intelligent suspension conveying. A powder spraying structure is installed at the power output end of a suspension conveying assembly, a signal monitoring frame used for installing the powder spraying structure is arranged below a first infrared sensor, a plurality of powder spraying stations are arranged in the extending direction of a production line rail, and the suspension conveying assembly is used for conveying the powder spraying structure between the powder spraying stations. The powder spraying structure comprises a hollow powder spraying pipe and a signal monitoring plate which move synchronously, and a second infrared sensor is arranged between the signal monitoring plate and the hollow powder spraying pipe. The distance between the first infrared sensor and the signal monitoring frame is monitored through the first infrared sensor, meanwhile, the distance between the second infrared sensor and the signal monitoring plate is monitored through the second infrared sensor, adjustment of the horizontal distance between the two powder spraying mechanisms which are oppositely arranged can be completed, and in this way, intelligent adjustment and control before spraying operation are achieved.

Description

Technical Field

[0001] This invention belongs to the field of intelligent overhead conveying technology, and in particular relates to an intelligent overhead conveying system for powder coating production processes. Background Technology

[0002] In industrial production, to improve workpiece quality, it is necessary to spray the produced workpieces to attach one or more layers of coating to the workpiece surface. When using powder as a spraying material for workpiece spraying, in order to improve the adhesion of powder to the workpiece surface and thus improve the spraying quality, the existing powder spraying process first heats the workpiece, then sprays powder onto the heated workpiece to achieve initial adhesion of powder to the workpiece surface, and finally heats the workpiece again after powder spraying to improve the adhesion of the powder coating on the workpiece surface.

[0003] In existing technologies, powder coating production lines typically have multiple powder spraying stations. Traditional spraying methods mostly rely on manual labor. Since powder is easily dispersed in the air and affects visibility, it can easily lead to substandard workpiece quality. Therefore, an intelligent overhead conveyor system is needed to transport the sprayed parts between the various stations.

[0004] Existing overhead conveyor systems generally require manual operation. The system transports the parts to the powder coating station before the coating process. However, existing systems have low levels of automation in powder coating production lines and cannot effectively control the horizontal distance between the workpiece and the spray nozzle. Therefore, we provide an intelligent overhead conveyor system for powder coating production processes to address these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent overhead conveying system for powder coating production processes. Through the specific structural design of the overhead conveying component, horizontal conveying component, moving component, air guiding component, powder spraying component, and powder dispersing component, the problems in the background art mentioned above are solved.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is an intelligent suspended conveying system for powder coating production processes, including a suspended conveying assembly installed on a production line track, wherein a powder coating structure is installed at the power output end of the suspended conveying assembly; wherein, the suspended conveying assembly includes a first infrared sensor, and a signal monitoring frame for mounting the powder coating structure is provided below the first infrared sensor; a plurality of powder coating stations are arranged in the extension direction of the production line track, and the suspended conveying assembly is used for conveying the powder coating structure between the various powder coating stations; the powder coating structure includes a synchronously moving hollow powder coating tube and a signal monitoring board, and a second infrared sensor is provided between the signal monitoring board and the hollow powder coating tube; when the powder coating structure is conveyed to the powder coating station by the suspended conveying assembly, the control system controls the signal monitoring frame to gradually descend until the control system receives a trigger signal from the first infrared sensor, at which point the control system controls the hollow powder coating tube to gradually approach the workpiece until the control system receives a trigger signal from the second infrared sensor.

[0007] In some embodiments, the suspended conveying assembly further includes a suspended conveying frame, which is slidably mounted on the production line track. A first conveying motor is fixedly installed on one side of the suspended conveying frame. The output shaft of the first conveying motor is connected to a traveling conveying wheel that is close to the production line track. A lifting cylinder is installed inside the suspended conveying frame. A signal monitoring frame is installed at the output end of the lifting cylinder. A bearing ring seat is fixedly provided at the bottom of the signal monitoring frame. The first infrared sensor is installed at the bottom of the suspended conveying frame.

[0008] In some embodiments, the powder spraying structure includes a horizontal conveying assembly; wherein the horizontal conveying assembly includes a rotating conveying disk rotatably mounted inside a bearing ring seat, a bevel gear ring fixedly mounted on the top of the rotating conveying disk, a conveying bevel gear meshing with the bevel gear ring connected to the output end of a second conveying motor mounted on the signal monitoring frame, a powder spraying cylinder cover fixedly mounted on the bottom of the rotating conveying disk, and a second infrared sensor symmetrically mounted on the peripheral side of the powder spraying cylinder cover.

[0009] In some embodiments, the top of the rotary conveyor is symmetrically provided with two guide channels, and the top of the rotary conveyor is respectively equipped with an air supply device and a dual-axis motor. The two output ends of the dual-axis motor are connected to horizontal screws, and the two air outlets of the air supply device are connected to air guide hoses.

[0010] In some embodiments, the powder spraying structure further includes a powder spraying mechanism, which includes a moving component; wherein the moving component includes a moving frame slidably connected to a guide channel, a support seat is fixedly provided on the top of the moving frame, an internally threaded tube sleeved on a horizontal screw is fixedly provided on one side of the support seat, the horizontal screw and the internally threaded tube are threadedly connected, and an air supply pipe connected to an air guide hose is installed between the moving frame and the support seat.

[0011] In some embodiments, the powder spraying mechanism further includes an air guiding assembly; wherein, the air guiding assembly includes two support frames symmetrically installed at the bottom of the movable frame, an air guiding cylinder is installed between the support frames, a first linkage rod coaxially mounted on the air guiding cylinder is rotatably mounted thereon, and two first transmission wheels are symmetrically mounted on the first linkage rod; impellers are installed at both ends of the first linkage rod, and a flow guide shroud is provided on the outside of the impeller to rotatably cooperate with the first linkage rod, the flow guide shroud is connected to the air guiding cylinder by a fixing plate, an air vent connected to an air supply pipe is opened at the top of the air guiding cylinder, a vertical flow guide channel communicating with its inner cavity is installed on the flow guide shroud, the air guiding cylinder and the vertical flow guide channel are connected by a first air guiding pipe, and a second air guiding pipe is connected to the bottom of the vertical flow guide channel.

[0012] In some embodiments, the powder spraying mechanism further includes a powder spraying assembly; wherein the powder spraying assembly includes a first sealed cylinder and a second sealed cylinder mounted on a support frame, the first sealed cylinder and the second sealed cylinder are connected by a feeding channel, the second sealed cylinder is connected to a second air guide pipe by a third air guide pipe, a feeding port communicating with its inner cavity is installed on the peripheral side of the first sealed cylinder, the open end of the feeding port is connected by a sealing cover, the hollow powder spraying pipe is disposed inside the powder spraying cylinder cover and is connected to the second sealed cylinder by a powder guide pipe, the hollow powder spraying pipe is connected to the support frame by a horizontal fixing frame, and both the horizontal fixing frame and the powder guide pipe are slidably engaged with the powder spraying cylinder cover.

[0013] In some embodiments, the powder spraying mechanism further includes a powder dispersion component; wherein, the powder dispersion component includes a storage cylinder rotatably fitted inside a first sealed cylinder, both ends of the storage cylinder are fixed with a second linkage rod penetrating the first sealed cylinder, a second transmission wheel is installed at the end of the second linkage rod, the first transmission wheel and the second transmission wheel are connected by a transmission belt, two material passage slots with an included angle of 90° are opened on the circumferential side of the storage cylinder, a porous powder guide cylinder is installed inside the second sealed cylinder, a V-shaped material gathering plate communicating with its inner cavity is fixed on the circumferential side of the porous powder guide cylinder, and the V-shaped material gathering plate is connected to the material discharge channel.

[0014] The present invention has the following beneficial effects: 1. The present invention uses a suspended conveyor assembly to intelligently move along the production line track to the powder spraying station. The control bearing ring seat drives the powder spraying structure on it to gradually move down. When the first infrared sensor detects that the distance between it and the signal monitoring frame reaches the set value of the control system, the control system receives the signal and shuts down the lifting cylinder. When the second infrared sensor detects that the distance between it and the signal monitoring board reaches the set value of the control system, the control system receives the signal and shuts down the dual-axis motor. At this time, the horizontal distance between the two powder spraying mechanisms set up opposite each other is adjusted, that is, the distance between the workpiece covered by the powder spraying cylinder cover and the hollow powder spraying pipes on both sides is adjusted to the set position, thus realizing intelligent control before the spraying operation.

[0015] 2. This invention utilizes airflow to control the synchronous rotation of the first linkage rod and the storage cylinder, causing the powder in the storage cylinder to intermittently fall into the porous powder guide cylinder. Simultaneously, the airflow flowing through the porous powder guide cylinder blows the falling powder out to complete the spraying. Compared to the spraying method where the airflow directly flows through the storage cylinder, this powder conveying and spraying method can effectively improve the powder output efficiency. By intermittently outputting powder and dynamically blowing it out with airflow, the blockage of the air holes on the porous powder guide cylinder by a large amount of powder being blown out at the same time can be effectively avoided. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a diagram showing the working state of the intelligent overhead conveyor system used in the powder coating production process of this invention.

[0018] Figure 2 This is a schematic diagram of the intelligent overhead conveyor system used in the powder coating production process of the present invention.

[0019] Figure 3 This is a diagram showing the relationship between the production line track and the suspended conveyor assembly in this invention.

[0020] Figure 4 This is a schematic diagram of the powder spraying structure in this invention.

[0021] Figure 5 This is a diagram showing the internal structure of the powder spraying structure in this invention.

[0022] Figure 6 This is a schematic diagram of the powder spraying mechanism in this invention.

[0023] Figure 7 This is a partial structural cross-sectional view of the powder spraying mechanism in this invention.

[0024] Figure 8 This is a schematic diagram of the horizontal conveying component in this invention.

[0025] Figure 9 This is a schematic diagram of the structure of the moving component in this invention.

[0026] Figure 10 This is a schematic diagram of the air guiding component in this invention.

[0027] Figure 11 This is a schematic diagram of the powder spraying component in this invention.

[0028] Figure 12 for Figure 11 A structural diagram from another angle.

[0029] Figure 13 This is a schematic diagram of the powder dispersion component in this invention.

[0030] Figure 14 for Figure 13 A structural diagram viewed from below.

[0031] The attached diagram lists the components represented by each number as follows: 1-Production line track, 2-Suspended conveyor assembly, 201-Signal monitoring frame, 202-Suspended conveyor frame, 203-First conveyor motor, 204-Walking conveyor wheel, 205-Lifting cylinder, 206-Bearing ring seat, 3-Powder spraying structure, 301-Hollow powder spraying pipe, 302-Signal monitoring board, 303-Second infrared sensor, 4-Horizontal conveyor assembly, 401-Rotary conveyor disc, 402-Powder spraying cylinder cover, 403-Guide channel, 404-Air supply device, 405-Dual-axis motor, 406-Horizontal screw, 407-Air guide hose, 5-Powder spraying mechanism, 6-Moving assembly, 601-Moving frame, 602-Support base, 603-Internal threaded pipe, 604-Air supply pipe, 7-Air guide assembly, 70 1-Support frame, 702-Air guide cylinder, 703-First linkage rod, 704-First transmission wheel, 705-Guide shroud, 706-Fixing plate, 707-Air inlet, 708-Vertical guide channel, 709-First air guide pipe, 710-Second air guide pipe, 8-Powder spraying assembly, 801-First sealed cylinder, 802-Second sealed cylinder, 803-Discharge channel, 804-Third air guide pipe, 805-Replenishment port, 806-Sealed cover, 807-Powder guide pipe, 808-Horizontal fixed frame, 9-Powder dispersion assembly, 901-Storage cylinder, 902-Second linkage rod, 903-Second transmission wheel, 904-Transmission belt, 905-Passage trough, 906-Porous powder guide cylinder, 907-V-shaped material gathering plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] For a specific implementation example, please refer to Implementation Example 1. Figure 1-14 This invention relates to an intelligent suspended conveying system for powder coating production processes. It includes a suspended conveying assembly 2 installed on a production line track 1, with a powder coating structure 3 mounted on the power output end of the suspended conveying assembly 2. The suspended conveying assembly 2 includes a first infrared sensor, and a signal monitoring frame 201 for mounting the powder coating structure 3 is located below the first infrared sensor. Several powder coating stations are arranged along the extension direction of the production line track 1, and the suspended conveying assembly 2 is used to convey the powder coating structure 3 between these stations. The powder coating structure 3 includes a synchronously moving hollow powder coating tube 301 and a signal monitoring plate 302. A second infrared sensor 303 is located between the signal monitoring plate 302 and the hollow powder coating tube 301. When the powder coating structure 3 is conveyed to a powder coating station via the suspended conveying assembly 2, the control system controls the signal monitoring frame 201 to gradually descend until the control system receives a trigger signal from the first infrared sensor. At this point, the control system controls the hollow powder coating tube 301 to gradually approach the workpiece until the control system receives a trigger signal from the second infrared sensor 303. This achieves intelligent control of the suspended conveying system during the coating process. Figure 1 As shown, a workpiece heating and conveying system is arranged at each of the different powder spraying stations. When the powder spraying structure 3 is conveyed to the powder spraying station by the suspended conveying component 2, the heated workpiece is conveyed from the heating station to the powder spraying station by the workpiece heating and conveying system, and then the powder spraying structure 3 is used to complete the spraying operation on the workpiece.

[0034] In some implementation schemes, such as Figure 3As shown, the suspended conveyor assembly 2 also includes a suspended conveyor frame 202, which is slidably mounted on the production line track 1. A first conveyor motor 203 is fixedly installed on one side of the suspended conveyor frame 202. The output shaft of the first conveyor motor 203 is connected to a traveling conveyor wheel 204 that is close to the production line track 1. A lifting cylinder 205 is installed inside the suspended conveyor frame 202. A signal monitoring frame 201 is installed at the output end of the lifting cylinder 205. A bearing ring seat 206 is fixedly installed at the bottom of the signal monitoring frame 201. A first infrared sensor is installed at the bottom of the suspended conveyor frame 202. The first conveyor motor 203 starts according to the program set by the control system, and the first conveyor motor 203 controls the traveling conveyor wheel 204 to move along the track 1. The entire suspended conveyor assembly 2 can move intelligently along the production line track 1 by rolling along the top surface of the production line track 1 until it moves to the set powder spraying station. When the lifting cylinder 205 starts according to the program set by the control system, it controls the bearing ring seat 206 to drive the powder spraying structure 3 on it to gradually move down. During this process, the vertical distance between it and the signal monitoring frame 201 is monitored in real time by the first infrared sensor. When the first infrared sensor detects that the distance between it and the signal monitoring frame 201 reaches the set value of the control system, the control system receives the signal and closes the lifting cylinder 205. At this time, the bearing ring seat 206 and the powder spraying structure 3 on it descend to the set position.

[0035] In some implementation schemes, such as Figure 4 and Figure 8 As shown, the powder spraying structure 3 includes a horizontal conveying assembly 4; wherein, the horizontal conveying assembly 4 includes a rotating conveying disk 401 rotatably mounted inside the bearing ring seat 206, a bevel gear ring is fixedly mounted on the top of the rotating conveying disk 401, and a conveying bevel gear (the bevel gear ring, the conveying bevel gear, and the second conveying motor are not shown in the figure) meshing with the output end of a second conveying motor mounted on the signal monitoring frame 201. A powder spraying cylinder cover 402 is fixedly mounted on the bottom of the rotating conveying disk 401, and second infrared sensors 303 are symmetrically mounted on the circumferential side of the powder spraying cylinder cover 402. Each powder spraying structure 3 corresponds to one second infrared sensor 303, which transmits signals through two... The combined action of the second infrared sensor 303 on the side enables the adjustment of the distance between the two hollow powder spraying tubes 301 symmetrically arranged inside the powder spraying cylinder cover 402. This allows for the control of the distance between the workpiece and the hollow powder spraying tubes 301. During the powder spraying operation, the control system starts the second conveyor motor to drive the conveyor bevel gear to rotate. Under the cooperation between the bevel gear ring and the conveyor bevel gear, the rotating conveyor disk 401 is rotated, thus achieving the synchronous circumferential movement of the two powder spraying structures 3 on it. During the synchronous circumferential movement of the two powder spraying structures 3, the powder spraying operation on the workpiece is achieved through the hollow powder spraying tubes 301.

[0036] In some implementation schemes, such as Figure 8 and Figure 9 As shown, the top of the rotary conveyor 401 is symmetrically provided with two guide channels 403. The top of the rotary conveyor 401 is respectively equipped with an air supply 404 and a dual-axis motor 405. The two output ends of the dual-axis motor 405 are connected to horizontal screws 406, and the two air outlets of the air supply 404 are connected to air guide hoses 407.

[0037] Furthermore, the powder spraying structure 3 also includes a powder spraying mechanism 5, which includes a moving component 6. The moving component 6 includes a moving frame 601 slidably connected to the guide channel 403. A support base 602 is fixedly mounted on the top of the moving frame 601. An internally threaded tube 603, sleeved on a horizontal screw 406, is fixedly mounted on one side of the support base 602. The horizontal screw 406 and the internally threaded tube 603 are threadedly connected. An air supply pipe 604, connected to an air guide hose 407, is installed between the moving frame 601 and the support base 602. The control system starts a dual-axis motor 405 to drive the two horizontal screws 406 to rotate. Under the threaded engagement between the horizontal screws 406 and the internally threaded tube 603... By bringing the two symmetrically arranged moving components 6 closer to each other, the horizontal distance between the two opposing signal monitoring boards 302 can be adjusted. During this process, the second infrared sensor 303 monitors the horizontal distance between itself and the signal monitoring board 302 in real time. When the second infrared sensor 303 detects that the distance between itself and the signal monitoring board 302 reaches the set value of the control system, the control system receives the signal and shuts down the dual-axis motor 405. At this time, the horizontal distance between the two opposing powder spraying mechanisms 5 is adjusted, that is, the distance between the workpiece covered by the powder spraying cylinder cover 402 and the hollow powder spraying pipes 301 on both sides is adjusted to the set position, so as to better perform powder spraying operations on the workpiece.

[0038] Specific embodiment two, based on specific embodiment one, such as Figure 10As shown, the powder spraying mechanism 5 also includes an air guiding assembly 7; wherein, the air guiding assembly 7 includes two support frames 701 symmetrically installed at the bottom of the movable frame 601, an air guiding cylinder 702 is installed between the support frames 701, a first linkage rod 703 coaxially mounted on the air guiding cylinder 702, two first transmission wheels 704 symmetrically mounted on the first linkage rod 703; impellers are installed at both ends of the first linkage rod 703, and a guide shroud 705 rotatably cooperates with the first linkage rod 703 is provided on the outside of the impellers; the guide shroud 705 is connected to the air guiding cylinder 702 by a fixing plate 706; the top of the air guiding cylinder 702 has an air vent 707 connected to the air supply pipe 604; and a vertical opening communicating with its inner cavity is installed on the guide shroud 705. The air guide channel 708 and the air guide cylinder 702 are connected to the vertical air guide channel 708 via the first air guide pipe 709. The bottom of the vertical air guide channel 708 is connected to the second air guide pipe 710. When the air supply device 404 is started by the control system, the air flow is delivered to the air guide cylinder 702 through the air guide hose 407 and the air supply pipe 604, and then delivered to the interior of the vertical air guide channels 708 on both sides by the first air guide pipe 709. The air flow through the vertical air guide channel 708 drives the impeller in the air guide shroud 705 to rotate. The air flow through the vertical air guide channel 708 enters the second air guide pipe 710 downward. When the impeller rotates, it drives the first linkage rod 703 and the first transmission wheel 704 on it to rotate synchronously.

[0039] In some implementation schemes, such as Figure 11 and Figure 12 As shown, the powder spraying mechanism 5 also includes a powder spraying assembly 8; wherein, the powder spraying assembly 8 includes a first sealed cylinder 801 and a second sealed cylinder 802 mounted on the support frame 701. The first sealed cylinder 801 and the second sealed cylinder 802 are connected by a feeding channel 803, and the second sealed cylinder 802 is connected to the second air guide pipe 710 by a third air guide pipe 804. A feeding port 805 communicating with its inner cavity is installed on the peripheral side of the first sealed cylinder 801, and the opening end of the feeding port 805 is covered by a sealing cover. 806 connection (detachable installation): The hollow powder spraying pipe 301 is located inside the powder spraying cylinder cover 402 and is connected to the second sealed cylinder 802 through the powder guide pipe 807. The hollow powder spraying pipe 301 is connected to the support frame 701 through the horizontal fixing frame 808. Both the horizontal fixing frame 808 and the powder guide pipe 807 are slidably engaged with the powder spraying cylinder cover 402. In the initial state, the hollow powder spraying pipe 301 is attached to the inner wall of the powder spraying cylinder cover 402, and the two powder spraying mechanisms 5 are at their farthest distance at this time.

[0040] In some implementation schemes, such as Figure 13 and Figure 14As shown, the powder spraying mechanism 5 also includes a powder dispersion component 9; wherein, the powder dispersion component 9 includes a storage cylinder 901 rotatably fitted inside the first sealed cylinder 801, and a second linkage rod 902 is fixed at both ends of the storage cylinder 901, penetrating the first sealed cylinder 801. A second transmission wheel 903 is installed at the end of the second linkage rod 902, and the first transmission wheel 704 and the second transmission wheel 903 are connected by a transmission belt 904. The synchronous rotation of the first linkage rod 703 and the second linkage rod 902 can be realized through the transmission belt 904. Two material passage slots 905 with an included angle of 90° are opened on the circumferential side of the storage cylinder 901. In the initial state The feeding port 805 is aligned with one material passage 905, while the other material passage 905 is arranged downwards. After opening the sealing cover 806, a certain amount of spraying powder is conveyed along the feeding port 805 and the material passage 905 into the storage cylinder 901. After closing the sealing cover 806, the powder filling is completed. A perforated powder guide cylinder 906 is installed inside the second sealed cylinder 802. A V-shaped material gathering plate 907 communicating with its inner cavity is fixed on the periphery of the perforated powder guide cylinder 906. The V-shaped material gathering plate 907 is connected to the material discharge channel 803. The powder inside can be blown out by the airflow passing through the perforated powder guide cylinder 906 to achieve the spraying operation.

[0041] When the powder spraying structure 3 is lowered to the set position by the lifting cylinder 205, the powder spraying cylinder cover 402 covers the heated workpiece at the powder spraying station. Then, the dual-shaft motor 405 drives the two horizontal screws 406 to rotate until the hollow powder spraying pipes 301 on both sides are transported to the set position, that is, the hollow powder spraying pipes 301 are close to the periphery of the workpiece. Then, the second conveying motor drives the conveying bevel gear to rotate. Under the cooperation between the bevel gear ring and the conveying bevel gear, the rotating conveying disk 401 is rotated. In this way, the synchronous circumferential movement of the two powder spraying structures 3 on it can be realized. During operation, the air supply unit 404 is activated by the control system, and airflow is delivered to the air delivery cylinder 702 through the air delivery hose 407 and the air supply pipe 604. The airflow is then delivered by the first air delivery pipe 709 to the vertical guide channels 708 on both sides. The airflow flowing through the vertical guide channels 708 drives the impeller inside the guide shroud 705 to rotate. The airflow flowing through the vertical guide channels 708 enters the second air delivery pipe 710 downwards. When the impeller rotates, it drives the first linkage rod 703 and its first transmission wheel 704 to rotate synchronously. Under the combined action of the transmission belt 904 and the second transmission wheel 903, the second linkage rod 90... 2. During synchronous rotation, as the second linkage rod 902 drives the storage cylinder 901 to rotate, the powder in the inner cavity of the storage cylinder 901 intermittently falls into the porous powder guide cylinder 906 inside the second sealed cylinder 802 along the material passage 905 and the material discharge channel 803. Meanwhile, the airflow entering the inner cavity of the second sealed cylinder 802 along the third air guide pipe 804 passes through the porous powder guide cylinder 906, blowing away the powder falling into the porous powder guide cylinder 906 and blowing it into the powder guide pipe 807. From there, the powder enters the hollow powder spraying pipe 301 and is sprayed onto the workpiece surface through several spray nozzles. This is achieved through circumferential motion. Two hollow powder spraying pipes 301 enable powder coating of the workpiece. By controlling the synchronous rotation of the first linkage rod 703 and the storage cylinder 901 with airflow, the powder in the storage cylinder 901 intermittently falls into the porous powder guide cylinder 906. At the same time, the airflow flowing through the porous powder guide cylinder 906 blows out the falling powder to complete the coating. Compared with the coating method where the airflow directly flows through the storage cylinder 901, this powder conveying and coating method can effectively improve the powder output efficiency. By intermittently outputting powder and dynamically blowing it out with airflow, the blockage of the air holes on the porous powder guide cylinder 906 by a large amount of powder being blown out at the same time can be effectively avoided.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent overhead conveying system for powder coating production processes, characterized in that, Includes a suspended conveyor assembly (2) installed on the production line track (1), wherein the power output end of the suspended conveyor assembly (2) is equipped with a powder spraying structure (3). The suspended conveyor assembly (2) includes a first infrared sensor, and a signal monitoring frame (201) for installing the powder spraying structure (3) is provided below the first infrared sensor. Several powder spraying stations are arranged in the extension direction of the production line track (1). The suspended conveyor assembly (2) is used for conveying the powder spraying structure (3) between the various powder spraying stations. The powder spraying structure (3) includes a hollow powder spraying tube (301) and a signal monitoring board (302) that move synchronously. A second infrared sensor (303) is provided between the signal monitoring board (302) and the hollow powder spraying tube (301). When the powder spraying structure (3) is transported to the powder spraying station by the suspended conveyor assembly (2), the control signal monitoring frame (201) of the control system gradually descends until the control system receives a trigger signal from the first infrared sensor. At this time, the control system controls the hollow powder spraying pipe (301) to gradually approach the workpiece until the control system receives a trigger signal from the second infrared sensor (303).

2. The intelligent overhead conveyor system for powder coating production process according to claim 1, characterized in that, The suspended conveying assembly (2) also includes a suspended conveying frame (202), which is slidably mounted on the production line track (1). A first conveying motor (203) is fixedly installed on one side of the suspended conveying frame (202). The output shaft of the first conveying motor (203) is connected to a walking conveying wheel (204) that is close to the production line track (1). A lifting cylinder (205) is installed inside the suspended conveying frame (202). A signal monitoring frame (201) is installed at the output end of the lifting cylinder (205). A bearing ring seat (206) is fixedly installed at the bottom of the signal monitoring frame (201). The first infrared sensor is installed at the bottom of the suspended conveying frame (202).

3. The intelligent overhead conveyor system for powder coating production process according to claim 2, characterized in that, The powder spraying structure (3) includes a horizontal conveying assembly (4); wherein the horizontal conveying assembly (4) includes a rotating conveying disk (401) rotatably installed inside the bearing ring seat (206), a bevel gear ring is fixedly installed on the top of the rotating conveying disk (401), the output end of the second conveying motor installed on the signal monitoring frame (201) is connected to a conveying bevel gear that meshes with the bevel gear ring, a powder spraying cylinder cover (402) is fixed at the bottom of the rotating conveying disk (401), and the second infrared sensor (303) is symmetrically installed on the circumferential side of the powder spraying cylinder cover (402).

4. The intelligent overhead conveyor system for powder coating production process according to claim 3, characterized in that, The top of the rotary conveyor (401) is symmetrically provided with two guide channels (403). The top of the rotary conveyor (401) is respectively equipped with an air supply device (404) and a dual-axis motor (405). The two output ends of the dual-axis motor (405) are connected to a horizontal screw (406). The two air outlets of the air supply device (404) are connected to air guide hoses (407).

5. The intelligent overhead conveyor system for powder coating production process according to claim 4, characterized in that, The powder spraying structure (3) further includes a powder spraying mechanism (5), which includes a moving component (6); wherein the moving component (6) includes a moving frame (601) slidably connected to the guide channel (403), a support base (602) is fixedly provided on the top of the moving frame (601), an internally threaded pipe (603) sleeved on a horizontal screw (406) is fixedly provided on one side of the support base (602), the horizontal screw (406) and the internally threaded pipe (603) are threadedly connected, and an air supply pipe (604) connected to an air guide hose (407) is installed between the moving frame (601) and the support base (602).

6. The intelligent overhead conveyor system for powder coating production process according to claim 5, characterized in that, The powder spraying mechanism (5) further includes an air guiding assembly (7); wherein the air guiding assembly (7) includes two support frames (701) symmetrically installed at the bottom of the movable frame (601), an air guiding cylinder (702) is installed between the support frames (701), a first linkage rod (703) coaxial with the air guiding cylinder (702) is rotatably installed on the air guiding cylinder (702), and two first transmission wheels (704) are symmetrically installed on the first linkage rod (703). Impellers are installed at both ends of the first linkage rod (703). The impellers are covered with a flow guide (705) that rotates with the first linkage rod (703). The flow guide (705) is connected to the air guide cylinder (702) by a fixing plate (706). The top of the air guide cylinder (702) is provided with an air inlet (707) that is connected to the air supply pipe (604). A vertical flow guide channel (708) communicating with its inner cavity is installed on the flow guide (705). The air guide cylinder (702) and the vertical flow guide channel (708) are connected by a first air guide pipe (709). A second air guide pipe (710) is connected to the bottom of the vertical flow guide channel (708).

7. The intelligent overhead conveyor system for powder coating production process according to claim 6, characterized in that, The powder spraying mechanism (5) further includes a powder spraying assembly (8); wherein the powder spraying assembly (8) includes a first sealed cylinder (801) and a second sealed cylinder (802) mounted on a support frame (701), the first sealed cylinder (801) and the second sealed cylinder (802) are connected through a feeding channel (803), the second sealed cylinder (802) and the second air guide pipe (710) are connected through a third air guide pipe (804), and the periphery of the first sealed cylinder (801) is equipped with a powder spraying device for its inner surface. The cavity is connected to the feeding port (805), and the opening end of the feeding port (805) is connected by a sealing cover (806). The hollow powder spraying pipe (301) is located inside the powder spraying cylinder cover (402) and is connected to the second sealed cylinder (802) through the powder guide pipe (807). The hollow powder spraying pipe (301) is connected to the support frame (701) through the horizontal fixing frame (808). The horizontal fixing frame (808) and the powder guide pipe (807) are both slidably engaged with the powder spraying cylinder cover (402).

8. The intelligent overhead conveyor system for powder coating production process according to claim 7, characterized in that, The powder spraying mechanism (5) further includes a powder dispersion component (9); wherein the powder dispersion component (9) includes a storage cylinder (901) rotatably fitted inside the first sealed cylinder (801), and a second linkage rod (902) that penetrates the first sealed cylinder (801) is fixed at both ends of the storage cylinder (901), and a second transmission wheel (903) is installed at the end of the second linkage rod (902), and the first transmission wheel (704) and the second transmission wheel (903) are connected by a transmission belt (904), and two material passage slots (905) with an included angle of 90° are opened on the periphery of the storage cylinder (901), and a porous powder guide cylinder (906) is installed inside the second sealed cylinder (802), and a V-shaped material gathering plate (907) that communicates with its inner cavity is fixed on the periphery of the porous powder guide cylinder (906), and the V-shaped material gathering plate (907) is connected to the material discharge channel (803).

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