A fully automatic closed loop copper bar epoxy coating production line

Abstract

The application discloses a full-automatic closed-loop copper bar epoxy coating production line, relates to power transmission and transformation bus processing and metal surface insulation coating equipment, and comprises a double-channel stainless steel roller conveying system, a cleaning and drying unit, an automatic powder dipping unit, an infrared segmented baking and curing unit, a laser peeling unit, a finished product cleaning and passivation unit, a plurality of material detection sensors and a PLC centralized electric control system, wherein the cleaning and drying unit comprises an epoxy copper bar cleaning main line unit and a water blowing and drying preheating unit. The application is provided with a first independent conveying channel, a second independent conveying channel and a third independent conveying channel, wherein the first independent conveying channel is responsible for pretreatment and powder dipping feeding, the third independent conveying channel is responsible for curing and peeling, and the second independent conveying channel is responsible for finished product cleaning, passivation and discharging. The three channels operate in parallel, different specifications of copper bars can be processed at the same time, the changeover debugging time is short, and the production capacity utilization rate and the production line flexibility are effectively improved.

Description

Technical Field

[0001] This invention relates to equipment for processing power transmission and transformation busbars and insulating coating metal surfaces, and more particularly to a fully automatic closed-loop epoxy coating production line for copper busbars. Background Technology

[0002] Currently, in the new energy and high-voltage power transmission and transformation industries, epoxy insulation coating of copper busbars is a core process for ensuring electrical insulation performance. Domestically, heat shrink tubing insulation is mostly used, while internationally, almost all use copper busbar epoxy insulation, which is also a trend and offers significantly better safety performance than heat shrink tubing. Currently, the industry commonly employs a segmented processing mode involving manual labor and multiple independent machines: first, the copper busbars are physically polished or cleaned to remove oil; then, manual application of tape masks the conductive contact areas; next, they are transferred to independent powder dipping and curing equipment to complete the coating preparation; finally, the masking tape is manually removed and the conductive contact surfaces are trimmed. This is a labor-intensive and outdated processing mode, requiring a large workforce, failing to improve efficiency, and resulting in unstable quality and difficulty in controlling process parameters.

[0003] However, the existing production model has the following significant drawbacks: conventional copper busbar coating equipment is only equipped with a single conveyor channel, and can only process a single specification of copper busbar at the same time. The changeover and debugging takes a long time and cannot meet the needs of batch parallel processing of multiple specifications of copper busbars. The single-line production model has poor flexibility and low capacity utilization. Summary of the Invention

[0004] The embodiments of the present invention provide a fully automated closed-loop copper busbar epoxy coating production line, which aims to solve the problems of poor flexibility and low capacity utilization in single-line production mode.

[0005] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: A fully automated closed-loop epoxy coating production line for copper busbars includes: A dual-channel stainless steel roller conveyor system is provided with an isolation baffle above to form a first independent conveying channel and a second independent conveying channel. The end of the second independent conveying channel is provided with a material unloading and packaging area. A cleaning and drying unit is installed on the first independent conveying channel; An automatic powder soaking unit is provided with a first frame robot arm between it and the first independent conveying channel. The gripping section of the first frame robot arm slides above the first independent conveying channel and is located at the rear end of the water blowing, drying and preheating unit. The infrared segmented baking and curing unit has a third independent conveying channel at the front end of the automatic powder dipping unit. The infrared segmented baking and curing unit is located on the third independent conveying channel and has a waste heat outlet. The end of the waste heat outlet is connected to the waste heat exchange coil. A laser peeling unit is located at the front end of the third independent conveying channel, and a second gantry robot is provided between the laser peeling unit and the third independent conveying channel; The finished product cleaning and passivation unit is located on the second independent conveying channel, which is between the second independent conveying channel and the laser peeling unit and is located at the front end of the finished product cleaning and passivation unit. It is transferred by a turnover vehicle.

[0006] Furthermore, the dual-channel stainless steel roller conveyor system includes: The machine has a segmented stainless steel frame with multiple rollers on top. Each of the rollers has a first sprocket at its end, and each first sprocket is connected to the others by a chain. An isolation baffle is longitudinally positioned above the rollers. Multiple variable frequency geared motors are respectively installed on each segment of the segmented stainless steel frame. The output end of the multiple variable frequency geared motors and the end of one of the rollers are provided with a second sprocket. Each second sprocket is connected to the first sprocket by a chain. Each of the multiple variable frequency geared motors is provided with a frequency converter. A bottom guide water collection trough is set at the bottom of the segmented stainless steel frame. The bottom of the bottom guide water collection trough is provided with an inclined guide slope, and a water collection and recycling device is provided at the end of the bottom guide water collection trough.

[0007] Furthermore, the cleaning and drying unit includes: The epoxy copper busbar cleaning main line unit is located on the first independent conveying channel and is equipped with a waste heat exchange coil inside. The water blowing and drying preheating unit is set on the first independent conveying channel and located at the rear end of the epoxy copper busbar cleaning main line unit; The epoxy copper busbar cleaning main unit includes: The spray box has a main spray pipe on its inner wall. The main spray pipe is connected to multiple spray branch pipes through a water distributor. Each spray branch pipe has an adjustable-angle stainless steel spray nozzle at its end. The main spray pipe is equipped with a self-priming high-pressure water pump and an electromagnetic flow meter. Multiple water collection trolleys are simultaneously installed below the segmented stainless steel frame and directly below the epoxy copper busbar cleaning main line unit. Each water collection trolley has an isolation and infiltration partition with a filter screen inside. The isolation and infiltration partition divides the interior of the water collection trolley into a return water chamber and a supply water chamber. The return water chamber is connected to the bottom of the segmented stainless steel frame, and the supply water chamber is connected to the self-priming high-pressure water pump. The waste heat exchange coil is installed inside the water collection trolley. The water blowing drying preheating unit includes: A closed-type water blowing box is installed on the segmented stainless steel frame and connected to the spray box through a high-temperature resistant soft door curtain. An air source pipeline is installed inside the closed-type water blowing box. One end of the air source pipeline is connected to an air storage tank, a refrigerated dryer and a precision filter in sequence. The other end of the air source pipeline is connected to multiple high-pressure water blowing nozzles. The multiple high-pressure water blowing nozzles are symmetrically arranged inside the closed-type water blowing box. A circulating hot air blower is installed inside the enclosed water blowing box to form a hot air circulation duct; A temperature sensor is installed inside the enclosed water blowing tank and connected to the temperature control module.

[0008] Furthermore, the automatic powder dipping unit includes: An impregnation enclosed chamber is located on the side of the first independent conveying channel, and an impregnation box is installed inside the impregnation enclosed chamber. A powder recovery fan is installed at the top of the powder impregnation enclosed chamber, and a powder filtration and recovery bin is connected to the outlet end of the powder recovery fan.

[0009] Furthermore, the first gantry robot has the same structure as the second gantry robot, and the first gantry robot includes: Two support frames are respectively set on opposite sides of the first independent conveying channel and the powder impregnation enclosed chamber, and the top of the two support frames is provided with a first sliding rail; The horizontal plate has first slide rail grooves that slide with the first sliding rail on both sides of its lower surface. The horizontal plate has first servo motors on both sides of its two ends. The output end of the first servo motors is provided with a first gear. The side of the first sliding rail is provided with a first rack that meshes with the first gear. The horizontal plate has a second sliding rail on its upper surface and one side. The L-shaped connecting frame has a second slide rail groove that slides with the second sliding rail on both the top and side walls. The L-shaped connecting frame is equipped with a second servo motor, and the output end of the second servo motor is equipped with a second gear. The other side of the cross plate is equipped with a second rack that meshes with the second gear. The telescopic rod is mounted on the L-shaped connecting frame with its telescopic end facing downwards, and the telescopic end of the telescopic rod is provided with a copper busbar clamp.

[0010] Furthermore, the infrared segmented baking and curing unit includes: A modular furnace body is set on the third independent conveying channel. The modular furnace body is a double-layer stainless steel furnace shell structure. The double-layer stainless steel furnace shell structure is filled with high-temperature resistant and flame-retardant rock wool. The side of the modular furnace body is provided with a viewing window and an inspection door. The front and rear ends of the modular furnace body are also provided with high-temperature resistant door curtains. Multiple infrared heating lamps are simultaneously arrayed within the modular furnace body; Multiple segmented temperature controllers are simultaneously installed inside the modular furnace body, and each segmented controller is electrically connected to each infrared heating lamp. Multiple non-contact infrared thermometers are simultaneously installed inside the modular furnace, and each of the non-contact infrared thermometers is electrically connected to each of the infrared heating lamps and the segmented temperature controller.

[0011] Furthermore, the laser peeling unit includes: A fully automatic laser peeling machine is located at the front end of the third independent conveying channel. The fully automatic laser peeling machine is equipped with a positioning sensor and a dust collection device. A semi-automatic laser peeling machine is set on the same horizontal line as the fully automatic laser peeling machine. The semi-automatic laser peeling machine is equipped with a positioning sensor and a dust collection device.

[0012] Furthermore, the finished product cleaning and passivation unit includes: The finished product cleaning and passivation zone is located on the second independent conveying channel near the front end, and has the same structure as the epoxy copper busbar cleaning main line unit. An anti-oxidation treatment zone is set on the second independent conveying channel and located behind the finished product cleaning and passivation zone. The anti-oxidation treatment zone is equipped with an anti-oxidant spraying and drying unit. The finished product drying area is located on the second independent conveying channel and behind the anti-oxidation treatment area. A hot air drying oven is installed in the finished product drying area.

[0013] Furthermore, it also includes multiple material detection sensors, which are respectively installed at the inlet and outlet ends of the epoxy copper busbar cleaning main line unit, the water blowing drying preheating unit, the automatic powder dipping unit, the infrared segmented baking curing unit, the laser peeling unit, and the finished product cleaning and passivation unit.

[0014] Furthermore, it also includes a PLC centralized electrical control system, which comprises: a PLC main controller, a human-machine interface touch screen, an independent unit electrical control module, a centralized control module, a data storage module, and a three-color buzzer alarm light. The PLC main controller is electrically connected to the epoxy copper busbar cleaning main line unit, the water blowing and drying preheating unit, the automatic powder impregnation unit, the infrared segmented baking and curing unit, the laser peeling unit, the finished product cleaning and passivation unit, and multiple material detection sensors. The PLC main controller is electrically connected to the human-machine interface touch screen. The independent unit electrical control module, the centralized control module, the data storage module, and the three-color buzzer alarm light are simultaneously installed in the epoxy copper busbar cleaning main line unit, the water blowing and drying preheating unit, the automatic powder impregnation unit, the infrared segmented baking and curing unit, the laser peeling unit, and the finished product cleaning and passivation unit, and are simultaneously electrically connected to the PLC main controller.

[0015] Beneficial effects: The present invention sets up a first independent conveying channel, a second independent conveying channel and a third independent conveying channel. The first independent conveying channel is responsible for pretreatment and powder dipping, the third independent conveying channel is responsible for curing and peeling, and the second independent conveying channel is responsible for finished product cleaning, passivation and unloading. The three channels operate in parallel, which can process copper busbars of different specifications at the same time. The changeover and debugging time is short, which effectively improves the capacity utilization rate and production line flexibility. Attached Figure Description

[0016] Figure 1 This is a first perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; In the diagram: 1. Dual-channel stainless steel roller conveyor system; 101. First independent conveying channel; 102. Second independent conveying channel; 103. Isolation baffle; 104. Segmented stainless steel frame; 2. Epoxy copper busbar cleaning main line unit; 201. Spray box; 202. Water collection trolley; 3. Water blowing, drying, and preheating unit; 301. Enclosed water blowing box; 4. Automatic powder immersion unit; 401. Enclosed powder immersion chamber; 5. First gantry robot; 501. Support frame; 502. Horizontal plate; 503. L-shaped connecting frame; 504. Telescopic rod; 505. Copper busbar clamp; 506. First sliding track. 507. First slide rail groove; 508. First servo motor; 509. First gear; 510. First rack; 511. Second sliding rail; 512. Second slide rail groove; 513. Second servo motor; 514. Second gear; 515. Second rack; 6. Infrared segmented baking and curing unit; 601. Modular furnace body; 7. Laser peeling unit; 701. Fully automatic laser peeling machine; 702. Semi-automatic laser peeling machine; 8. Second rack robot; 9. Finished product cleaning and passivation unit; 901. Finished product cleaning and passivation area; 902. Anti-oxidation treatment area; 903. Finished product drying area. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0018] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] like Figure 1-3 As shown, this embodiment of the invention provides a fully automatic closed-loop epoxy coating production line for copper busbars, including a dual-channel stainless steel roller conveyor system 1, a cleaning and drying unit, an automatic powder dipping unit 4, an infrared segmented baking and curing unit 6, a laser peeling unit 7, a finished product cleaning and passivation unit 9, multiple material detection sensors, and a PLC centralized electrical control system. The cleaning and drying unit includes an epoxy copper busbar cleaning main line unit 2 and a water blowing, drying, and preheating unit 3. An isolation baffle 103 is provided above the dual-channel stainless steel roller conveyor system 1 to form a first independent conveying channel 101 and a second independent conveying channel 102. 02, The end of the second independent conveying channel 102 is provided with a material unloading and packaging area; the epoxy copper busbar cleaning main line unit 2 is set on the first independent conveying channel 101 and is provided with a waste heat exchange coil inside; the water blowing and drying preheating unit 3 is set on the first independent conveying channel 101 and is located at the rear end of the epoxy copper busbar cleaning main line unit 2; the automatic powder dipping unit 4 is provided with a first rack robot 5 between it and the first independent conveying channel 101, and the clamping section of the first rack robot 5 slides above the first independent conveying channel 101 and is located at the rear end of the water blowing and drying preheating unit 3; The automatic powder dipping unit 4 has a third independent conveying channel at its front end. The infrared segmented baking and curing unit 6 is located on the third independent conveying channel and has a waste heat outlet. The end of the waste heat outlet is connected to a waste heat exchange coil. The laser peeling unit 7 is located at the front end of the third independent conveying channel, and a second gantry robot 8 is located between the laser peeling unit 7 and the third independent conveying channel. The finished product cleaning and passivation unit 9 is located on the second independent conveying channel 102, between the second independent conveying channel 102 and the laser peeling unit 7, and is located at the finished product cleaning and passivation unit. The front end of the chemical unit 9 is transferred via a turnover cart; multiple material detection sensors are respectively set at the inlet and outlet ends of the epoxy copper busbar cleaning main line unit 2, the water blowing and drying preheating unit 3, the automatic powder dipping unit 4, the infrared segmented baking and curing unit 6, the laser peeling unit 7, and the finished product cleaning and passivation unit 9; the PLC centralized electrical control system is simultaneously electrically connected to the dual-channel stainless steel roller conveyor system 1, the epoxy copper busbar cleaning main line unit 2, the water blowing and drying preheating unit 3, the automatic powder dipping unit 4, the infrared segmented baking and curing unit 6, the laser peeling unit 7, and the finished product cleaning and passivation unit 9.

[0022] This invention provides a fully automated closed-loop epoxy coating production line for copper busbars. Through the coordinated operation of a dual-channel stainless steel roller conveyor system 1, a first-row robotic arm 5, a second-row robotic arm 8, and a transfer cart, the production line achieves fully automated transfer and processing of copper busbars from the epoxy copper busbar cleaning main unit 2, through the water blowing and drying preheating unit 3, the automatic powder dipping unit 4, the infrared segmented baking and curing unit 6, the laser peeling unit 7, and the finished product cleaning and passivation unit 9. This process involves cleaning, preheating, powder dipping, curing, peeling, and finally, finished product cleaning and passivation. It eliminates manual transfer and manual masking / adhesive removal, significantly reducing costs. This invention features low labor costs, improved production efficiency and product consistency, and waste heat recovery and water recycling, significantly reducing energy and water consumption. It includes a first independent conveying channel 101, a second independent conveying channel 102, and a third independent conveying channel. The first independent conveying channel 101 handles pretreatment and powder loading, the third independent conveying channel handles curing and peeling, and the second independent conveying channel 102 handles finished product cleaning, passivation, and unloading. The three channels operate in parallel, allowing for the simultaneous processing of copper busbars of different specifications. Changeover and debugging times are short, effectively improving capacity utilization and production line flexibility.

[0023] according to Figure 1As shown in the embodiments of this application, the dual-channel stainless steel roller conveying system 1 includes a segmented stainless steel frame 104, multiple variable frequency geared motors, and a bottom guide water collection tank. Multiple rollers are arranged above the segmented stainless steel frame 104, and each roller has a first sprocket at its end. Each first sprocket is connected to the others by a chain, thereby achieving synchronous rotation of the multiple rollers. An isolation baffle 103 is longitudinally arranged above the multiple rollers, with a small gap between the bottom of the isolation baffle 103 and the upper surface of the roller. This gap does not affect the rotation of the rollers but effectively separates the first independent conveying channel 101 and the second independent conveying channel 102, preventing interference between the copper busbars on the two channels. Multiple variable frequency geared motors are respectively arranged on each segment of the segmented stainless steel frame 104. Due to the long production line, the segmented stainless steel frame 104 is divided into multiple segments, each driven by an independent variable frequency geared motor. This avoids insufficient torque and synchronization errors caused by long-distance transmission with a single motor. The output ends of the multiple variable frequency geared motors are connected to the end of one of the rollers. Each section is equipped with a second sprocket, and each second sprocket is connected to the first sprocket via a chain. A variable frequency geared motor drives the active roller within that section to rotate. Multiple variable frequency geared motors are each equipped with a frequency converter, allowing independent adjustment of the conveying speed of each section. The chain speed is infinitely adjustable within the range of 0.5-5 m / min, and the linear speed of each section can be set individually according to process requirements to achieve process cycle matching. A bottom guide water collection tank is located at the bottom of the segmented stainless steel frame 104 to collect water generated during cleaning, blowing, and other processes. The wastewater is collected by a bottom guide water collection tank with an inclined guide slope at the bottom, which allows the wastewater to flow automatically to the end of the tank under gravity. The end of the bottom guide water collection tank is equipped with a water collection and recycling device, which may include a water collection tank and a drainage pump. The device is used to centrally discharge the collected wastewater or transport it to a water treatment system for recycling. Through the segmented independent drive and bottom water collection and recycling design, the synchronization and adjustability of long-distance transportation are ensured, and the centralized collection and recycling of wastewater are realized, thereby improving the operational reliability and environmental protection of the production line.

[0024] according to Figure 1As shown in the embodiments of this application, the epoxy copper busbar cleaning main line unit 2 includes a spray main pipe and multiple water collection trolleys 202. A spray box 201 is installed on a segmented stainless steel frame 104. A spray main pipe is installed on the inner wall of the spray box 201. The spray main pipe is connected to multiple spray branch pipes through a water distributor. Each spray branch pipe has an adjustable-angle stainless steel spray nozzle at its end. A self-priming high-pressure water pump and an electromagnetic flow meter are installed on the spray main pipe. Multiple water collection trolleys 202 02. Simultaneously located below the segmented stainless steel frame 104 and directly below the epoxy copper busbar cleaning main line unit 2, the water collection cart 202 is equipped with an isolation and infiltration partition. The isolation and infiltration partition contains a filter screen, dividing the water collection cart 202 into a return water chamber and a supply water chamber. The return water chamber is connected to the bottom of the segmented stainless steel frame 104, and the supply water chamber is connected to a self-priming high-pressure water pump. Waste heat exchange coils are located inside the water collection cart 202. Spray box 201, main spray pipe, water distributor, and adjustable angle stainless steel spray nozzles: The spray box 201 forms a closed cleaning chamber to prevent water splashing; the self-priming high-pressure water pump provides high-pressure cleaning water, and an electromagnetic flow meter monitors the cleaning water flow rate; the main spray pipe branches into multiple spray branches via the water distributor; the spray nozzle angle is adjustable, allowing for adjustments to the spray angle based on different thicknesses and shapes of the copper busbars, comprehensively rinsing the surface of the copper busbars of oil and oxide scale. The system comprises a water collection cart 202, an isolation and infiltration barrier, a filter screen, a return water chamber, and a supply water chamber. Wastewater from cleaning flows downwards into the return water chamber. The filter screen inside the isolation and infiltration barrier filters out copper shavings and impurities from the water, and the filtered water enters the supply water chamber. The supply water chamber supplies water to a self-priming high-pressure water pump, enabling the filtration and recycling of the cleaning water. A waste heat exchange coil is located inside the water collection cart 202. High-temperature media from the infrared curing unit is introduced into the coil to heat the circulating water inside the water collection cart 202, completing waste heat recovery and utilization. The water collection cart 202 is removable for easy disassembly, maintenance, and slag removal from the filter screen.

[0025] according to Figure 1As shown in the embodiments of this application, the preheating unit 3 for blowing water and drying includes a closed blowing box 301, a circulating hot air blower, and a temperature sensor. The closed blowing box 301 is mounted on a segmented stainless steel frame 104 and is connected to the spray box 201 through a high-temperature resistant soft door curtain to reduce heat loss inside the box and prevent water vapor from overflowing. An air source pipeline is provided inside the closed blowing box 301. One end of the air source pipeline is connected to an air storage tank, a refrigerated dryer, and a precision filter in sequence. The other end of the air source pipeline is connected to multiple high-pressure blowing nozzles, which are symmetrically arranged inside the closed blowing box 301. The circulating hot air blower is installed inside the closed blowing box 301 to form a hot air circulation duct. The temperature sensor is installed inside the closed blowing box 301 and connected to a temperature control module. Air tank, refrigerated dryer, and precision filter: These components purify compressed air by removing water and oil, ensuring the air blown onto the copper busbars is dry and clean. This prevents oil and water residue from remaining on the copper busbar surface, thus avoiding coating defects during subsequent powder impregnation. High-pressure water nozzles are symmetrically arranged at the top and bottom to simultaneously blow away surface water droplets from both sides of the copper busbars. A circulating hot air fan: This creates a hot air circulation duct inside the chamber, preheating the copper busbars while drying them, raising the temperature of the copper substrate and facilitating subsequent epoxy powder impregnation and adhesion. Temperature sensor and temperature control module: These components collect real-time internal temperature data, using closed-loop control to manage the hot air fan output power and stably control the preheating process temperature, ensuring consistent preheating results for each batch of copper busbars.

[0026] according to Figure 1 As shown in the embodiments of this application, the automatic powder impregnation unit 4 includes an impregnation enclosed chamber 401 and a powder recovery fan. The impregnation enclosed chamber 401 is located on the side of the first independent conveying channel 101, and an impregnation box is installed inside the impregnation enclosed chamber 401. The powder recovery fan is located on the top of the impregnation enclosed chamber 401, and a powder filter recovery bin is connected to the outlet end of the powder recovery fan. The impregnation enclosed chamber 401: encloses the powder impregnation operation inside the chamber, reducing the outward diffusion of epoxy powder and improving the dust environment in the workshop; the impregnation box is placed inside the chamber, and the epoxy powder is contained inside the impregnation box. A robotic arm holds a copper busbar and immerses it in the powder to complete the impregnation coating. Powder recovery fan and powder filter recovery bin: suspended and flying powder is generated during the powder impregnation operation; the top powder recovery fan sucks up the floating powder in the chamber and sends it to the powder filter recovery bin, where the powder is filtered and intercepted. The filtered powder can be reused, reducing the loss of epoxy powder material.

[0027] according to Figure 1As shown in the embodiments of this application, the first gantry robot 5 and the second gantry robot 8 have the same structure. The first gantry robot 5 includes two support frames 501, a horizontal plate 502, an L-shaped connecting frame 503, and a telescopic rod 504. The two support frames 501 are respectively arranged on opposite sides of the first independent conveying channel 101 and the powder impregnation enclosed chamber 401. The top of the two support frames 501 is provided with a first sliding rail 506. The lower surface of the horizontal plate 502 is provided with first slide rail grooves 507 that slide with the first sliding rail 506 on both sides. The two ends of the horizontal plate 502 are provided with first servo motors 508. The output end of the first servo motor 508 is provided with a first gear 509. The first sliding rail 506 has a first rack 510 on its side that meshes with the first gear 509. The upper surface and one side of the horizontal plate 502 are both provided with a second sliding rail 511. The top and side walls of the L-shaped connecting frame 503 are both provided with second slide rail grooves 512 that slide with the second sliding rail 511. A second servo motor 513 is mounted on the L-shaped connecting frame 503, and a second gear 514 is mounted at the output end of the second servo motor 513. The other side of the horizontal plate 502 has a second rack 515 that meshes with the second gear 514. The telescopic rod 504 is mounted on the L-shaped connecting frame 503 with its telescopic end facing downwards. A copper busbar clamp 505 is mounted at the telescopic end of the telescopic rod 504. Support frame 501 and first sliding rail 506: The support frame 501 is mounted on both sides of the channel, supporting the first sliding rail 506 and serving as a reference for the lateral movement of the horizontal plate 502. Horizontal plate 502, first servo motor 508, first gear 509, first rack 510: The first servo motor 508 drives the gear to mesh and roll along the first rack 510, causing the horizontal plate 502 to move laterally over a large range along the first sliding rail 506, realizing the robot arm's cross-station movement. Second sliding rail 511, L-shaped connecting frame, second servo motor 513, second gear 514, second rack 515: The second servo motor 513 drives the gear and rack, causing the L-shaped connecting frame to move in another direction on the horizontal plate 502, completing the two-dimensional planar position adjustment. Telescopic rod 504, copper busbar clamp 505: The telescopic rod 504 extends and retracts vertically, and the copper busbar clamp 505 clamps the copper busbar workpiece, completing the lifting, lowering, and transfer actions of the copper busbar; the servo gear and rack transmission has high positioning accuracy, meeting the accuracy requirements of automated loading, unloading, and transfer of copper busbars.

[0028] according to Figure 1As shown in the embodiments of this application, the infrared segmented baking and curing unit 6 includes a modular furnace body 601, multiple infrared heating lamps, multiple segmented temperature controllers, and multiple non-contact infrared thermometers. The modular furnace body 601 is disposed on a third independent conveying channel. The modular furnace body 601 is a double-layer stainless steel furnace shell structure, and high-temperature resistant flame-retardant rock wool is disposed inside the double-layer stainless steel furnace shell structure. The side of the modular furnace body 601 is provided with a viewing window and an inspection door. High-temperature resistant door curtains are provided at both the front and rear ends of the modular furnace body 601. Multiple infrared heating lamps are simultaneously arrayed inside the modular furnace body 601. Multiple segmented temperature controllers are simultaneously disposed inside the modular furnace body 601, and each segmented controller is electrically connected to each infrared heating lamp. Multiple non-contact infrared thermometers are simultaneously disposed inside the modular furnace body 601, and each non-contact infrared thermometer is electrically connected to each infrared heating lamp and each segmented temperature controller.

[0029] according to Figure 1 As shown in the embodiments of this application, the laser stripping unit 7 includes a fully automatic laser stripping machine 701 and a semi-automatic laser stripping machine 702. The fully automatic laser stripping machine 701 is located at the front end of the third independent conveying channel and is equipped with a positioning sensor and a dust collection device. The semi-automatic laser stripping machine 702 is located on the same horizontal line as the fully automatic laser stripping machine 701 and is also equipped with a positioning sensor and a dust collection device. The fully automatic laser stripping machine 701: For large-volume standard-specification copper busbars, it automatically completes the laser stripping of the insulating layer on the conductive contact surface by relying on the positioning sensor to detect the position of the copper busbar, replacing manual tape tearing, with high dimensional accuracy and stable processing. The semi-automatic laser stripping machine 702: Arranged side-by-side with the fully automatic model, it is used for processing irregularly shaped, non-standard, and small-batch copper busbars, and can be manually aligned, broadening the applicability of the equipment. Positioning sensors ensure precise laser peeling, preventing over- or under-peeling; a dust collection device collects the fumes and dust generated by laser ablation of the insulating layer, purifying the work environment.

[0030] according to Figure 2As shown in the embodiments of this application, the finished product cleaning and passivation unit 9 includes a finished product cleaning and passivation area 901, an anti-oxidation treatment area 902, and a finished product drying area 903. The finished product cleaning and passivation area 901 is located on the second independent conveying channel 102 near the front end, and has the same structure as the epoxy copper busbar cleaning main line unit 2. The anti-oxidation treatment area 902 is located on the second independent conveying channel 102 and behind the finished product cleaning and passivation area 901. The anti-oxidation treatment area 902 is equipped with an anti-oxidant spraying and drying unit. The finished product drying area 903 is located on the second independent conveying channel 102 and behind the anti-oxidation treatment area 902. The finished product drying area 903 is equipped with a hot air drying oven. The finished product cleaning and passivation area 901 has the same structure as the epoxy copper busbar cleaning main line unit 2. It uses high-pressure spray cleaning to remove dust and debris generated by laser peeling, and simultaneously completes surface passivation treatment. Anti-oxidation treatment zone 902: Anti-oxidant is sprayed to form a protective film on the exposed conductive metal surface of the copper busbar, and then dried to prevent oxidation and discoloration of the conductive contact surface of the copper busbar. Finished product drying zone 903: The copper busbar is dried as a whole in a hot air drying oven to remove residual moisture from the surface agents. After treatment, it is transported to the final unloading and packaging area.

[0031] In the embodiments of this application, the PLC centralized electrical control system includes: a PLC main controller, a human-machine interface touch screen, unit-independent electrical control modules, a centralized control module, a data storage module, and a three-color buzzer alarm light. The PLC main controller is electrically connected to the epoxy copper busbar cleaning main line unit 2, the water blowing and drying preheating unit 3, the automatic powder impregnation unit 4, the infrared segmented baking and curing unit 6, the laser peeling unit 7, the finished product cleaning and passivation unit 9, and multiple material detection sensors. The PLC main controller is electrically connected to the human-machine interface touch screen. The unit-independent electrical control modules, the centralized control module, the data storage module, and the three-color buzzer alarm light are simultaneously installed in the epoxy copper busbar cleaning main line unit 2, the water blowing and drying preheating unit 3, the automatic powder impregnation unit 4, the infrared segmented baking and curing unit 6, the laser peeling unit 7, and the finished product cleaning and passivation unit 9, and are also electrically connected to the PLC main controller. The PLC main controller is the core of the entire production line control, receiving signals from all material detection sensors and outputting control signals to each process unit to achieve process linkage. The human-machine interface touch screen is the operator's interface, enabling process parameter setting, production line status viewing, and fault display. Independent unit electrical control module: Each process unit is equipped with an independent electrical control module, which can operate in conjunction with the entire production line or be debugged and repaired independently, facilitating maintenance. Centralized control module: Enables interlocking and sequential automatic operation of all equipment on the production line, achieving closed-loop fully automated production. Data storage module: Records process parameters such as production batches, temperature, and speed, enabling production data traceability. Three-color buzzer alarm lights: Located in each unit, these lights provide audible and visual alarms in case of material shortages, overheating, or equipment malfunctions, facilitating rapid detection of abnormalities by on-site personnel.

[0032] Work process: The first independent conveying channel 101 is sequentially arranged with an epoxy copper busbar cleaning main line unit 2 and a water blowing and drying preheating unit 3. The copper busbar workpiece is fed into the epoxy copper busbar cleaning main line unit 2 through the first independent conveying channel 101. High-pressure spray nozzles spray cleaning fluid at multiple angles to remove oil and oxidation impurities from the surface of the copper busbar. The cleaning wastewater falls downward into the water collection cart 202. The internal filter screen of the water collection cart 202 achieves solid-liquid separation. The return water chamber receives the wastewater, and the filtered water supply chamber supplies water to the self-priming high-pressure water pump to achieve water circulation. The high-temperature waste heat discharged from the infrared segmented baking and curing unit 6 is introduced into the waste heat exchange coil to preheat the water inside the water collection cart 202, recover the curing heat, and reduce the energy consumption of subsequent heating after cleaning.

[0033] After cleaning, the copper busbar is conveyed into the water blowing, drying and preheating unit 3; the air source is processed by the air tank, refrigerated dryer and precision filter to obtain dry and clean compressed air, and the upper and lower symmetrical high pressure water blowing nozzles blow away the residual moisture on the surface of the copper busbar; the circulating hot air blower works, and the hot air circulates to preheat the copper busbar. The temperature sensor collects the cavity temperature in real time and connects to the temperature control module to stably control the preheating temperature.

[0034] After the material detection sensor at the discharge end of the preheating and drying unit 3 detects the arrival signal of the copper busbar, the PLC centralized electrical control system drives the first rack robot 5 to move. The first servo motor 508 of the first rack robot 5 drives the gear rack, which moves the horizontal plate 502 laterally along the first sliding track 506; the second servo motor 513 drives the L-shaped connecting frame to move along the second sliding track 511; the telescopic rod 504 drives the copper busbar clamp 505 to descend and clamp the copper busbar, transferring the copper busbar to the powder dipping box inside the powder dipping enclosed chamber 401 of the automatic powder dipping unit 4 to complete the epoxy powder dipping operation; the powder recovery fan at the top of the powder dipping enclosed chamber 401 sucks the floating powder to the powder filter recovery chamber to recover excess epoxy powder and reduce powder waste.

[0035] After powder impregnation, the copper busbar is transferred to the third independent conveying channel and enters the infrared segmented baking and curing unit 6, where infrared heating completes the curing of the epoxy powder coating. The high-temperature exhaust gas and waste heat generated by the infrared segmented baking and curing unit 6 are transported to the waste heat exchange coil through the waste heat outlet pipeline to supply heat recovery and utilization at the cleaning station. The infrared segmented baking and curing unit 6 is also equipped with high-pressure air blowing, circulating hot air, and temperature detection components to ensure a clean curing environment and controllable temperature.

[0036] The cured copper bars are conveyed along the third independent conveying channel to the station of the laser stripping unit 7; the second gantry manipulator 8 is responsible for transferring the copper bars between the third independent conveying channel and the laser stripping unit 7. The laser stripping unit 7 is provided with a full-automatic laser stripping machine 701 and a semi-automatic laser stripping machine 702; for large-batch standard copper bars, the full-automatic laser stripping machine 701 is used to complete laser stripping of the insulating layer on the conductive contact surface; for special-shaped and small-batch copper bars, the processing is switched to the semi-automatic laser stripping machine 702; both devices are equipped with positioning sensors to ensure the accuracy of the stripping position, and a soot recovery device collects soot generated by laser processing to purify the workshop environment.

[0037] The copper bars after laser stripping are transferred to the second independent conveying channel 102 via a turnover cart, and then fed into the finished product cleaning and passivation unit 9. The finished product cleaning and passivation unit 9 is divided into a finished product cleaning and passivation area 901, an anti-oxidation treatment area 902, and a finished product drying area 903; the finished product cleaning and passivation area 901 spray-cleans processing residual impurities on the surface of the copper bars; then the copper bars enter the anti-oxidation treatment area 902, where anti-oxidant is sprayed and blown dry; finally, the finished product is dried by hot air in the finished product drying area 903; the processed finished copper bars are conveyed along the second independent conveying channel 102 to the terminal blanking and packaging area.

[0038] Material detection sensors are arranged at the inlets and outlets of each process unit of the entire production line to collect the presence / absence signals of copper bars in real time, and feed back the signals to the PLC main controller. The PLC centralized electric control system includes a human-machine interactive touch screen, and operators set the process parameters of the whole line on the touch screen; independent unit electric control modules ensure that each station can be independently debugged and maintained, and a centralized control module realizes the interconnection of the whole line; a data storage module records production parameters and production batches; a three-color buzzing alarm lamp gives out audible and visual alarms when there is material shortage, failure or abnormal temperature.

[0039] In the description of this specification, the specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed by the present invention, which shall all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fully automated closed-loop epoxy coating production line for copper busbars, characterized in that, include: A dual-channel stainless steel roller conveyor system is provided with an isolation baffle above to form a first independent conveying channel and a second independent conveying channel. The end of the second independent conveying channel is provided with a material unloading and packaging area. A cleaning and drying unit is installed on the first independent conveying channel; An automatic powder soaking unit is provided with a first frame robot arm between it and the first independent conveying channel. The gripping section of the first frame robot arm slides above the first independent conveying channel and is located at the rear end of the water blowing, drying and preheating unit. The infrared segmented baking and curing unit has a third independent conveying channel at the front end of the automatic powder dipping unit. The infrared segmented baking and curing unit is located on the third independent conveying channel and has a waste heat outlet. The end of the waste heat outlet is connected to the waste heat exchange coil. A laser peeling unit is located at the front end of the third independent conveying channel, and a second gantry robot is provided between the laser peeling unit and the third independent conveying channel; The finished product cleaning and passivation unit is located on the second independent conveying channel, which is between the second independent conveying channel and the laser peeling unit and is located at the front end of the finished product cleaning and passivation unit. It is transferred by a turnover vehicle.

2. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The dual-channel stainless steel roller conveyor system includes: The machine has a segmented stainless steel frame with multiple rollers on top. Each of the rollers has a first sprocket at its end, and each first sprocket is connected to the others by a chain. An isolation baffle is longitudinally positioned above the rollers. Multiple variable frequency geared motors are respectively installed on each segment of the segmented stainless steel frame. The output end of the multiple variable frequency geared motors and the end of one of the rollers are provided with a second sprocket. Each second sprocket is connected to the first sprocket by a chain. Each of the multiple variable frequency geared motors is provided with a frequency converter. A bottom guide water collection trough is set at the bottom of the segmented stainless steel frame. The bottom of the bottom guide water collection trough is provided with an inclined guide slope, and a water collection and recycling device is provided at the end of the bottom guide water collection trough.

3. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 2, characterized in that, The cleaning and drying unit includes: The epoxy copper busbar cleaning main line unit is located on the first independent conveying channel and is equipped with a waste heat exchange coil inside. The water blowing and drying preheating unit is set on the first independent conveying channel and located at the rear end of the epoxy copper busbar cleaning main line unit; The epoxy copper busbar cleaning main unit includes: The spray box has a main spray pipe on its inner wall. The main spray pipe is connected to multiple spray branch pipes through a water distributor. Each spray branch pipe has an adjustable-angle stainless steel spray nozzle at its end. The main spray pipe is equipped with a self-priming high-pressure water pump and an electromagnetic flow meter. Multiple water collection trolleys are simultaneously installed below the segmented stainless steel frame and directly below the epoxy copper busbar cleaning main line unit. Each water collection trolley has an isolation and infiltration partition with a filter screen inside. The isolation and infiltration partition divides the interior of the water collection trolley into a return water chamber and a supply water chamber. The return water chamber is connected to the bottom of the segmented stainless steel frame, and the supply water chamber is connected to the self-priming high-pressure water pump. The waste heat exchange coil is installed inside the water collection trolley. The water blowing drying preheating unit includes: A closed-type water blowing box is installed on the segmented stainless steel frame and connected to the spray box through a high-temperature resistant soft door curtain. An air source pipeline is installed inside the closed-type water blowing box. One end of the air source pipeline is connected to an air storage tank, a refrigerated dryer and a precision filter in sequence. The other end of the air source pipeline is connected to multiple high-pressure water blowing nozzles. The multiple high-pressure water blowing nozzles are symmetrically arranged inside the closed-type water blowing box. A circulating hot air blower is installed inside the enclosed water blowing box to form a hot air circulation duct; A temperature sensor is installed inside the enclosed water blowing tank and connected to the temperature control module.

4. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The automatic powder impregnation unit includes: An impregnation enclosed chamber is located on the side of the first independent conveying channel, and an impregnation box is installed inside the impregnation enclosed chamber. A powder recovery fan is installed at the top of the powder impregnation enclosed chamber, and a powder filtration and recovery bin is connected to the outlet end of the powder recovery fan.

5. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The first gantry robot has the same structure as the second gantry robot, and the first gantry robot includes: Two support frames are respectively set on opposite sides of the first independent conveying channel and the powder impregnation enclosed chamber, and the top of the two support frames is provided with a first sliding rail; The horizontal plate has first slide rail grooves that slide with the first sliding rail on both sides of its lower surface. The horizontal plate has first servo motors on both sides of its two ends. The output end of the first servo motors is provided with a first gear. The side of the first sliding rail is provided with a first rack that meshes with the first gear. The horizontal plate has a second sliding rail on its upper surface and one side. The L-shaped connecting frame has a second slide rail groove that slides with the second sliding rail on both the top and side walls. The L-shaped connecting frame is equipped with a second servo motor, and the output end of the second servo motor is equipped with a second gear. The other side of the cross plate is equipped with a second rack that meshes with the second gear. The telescopic rod is mounted on the L-shaped connecting frame with its telescopic end facing downwards, and the telescopic end of the telescopic rod is provided with a copper busbar clamp.

6. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The infrared segmented baking and curing unit includes: A modular furnace body is set on the third independent conveying channel. The modular furnace body is a double-layer stainless steel furnace shell structure. The double-layer stainless steel furnace shell structure is filled with high-temperature resistant and flame-retardant rock wool. The side of the modular furnace body is provided with a viewing window and an inspection door. The front and rear ends of the modular furnace body are also provided with high-temperature resistant door curtains. Multiple infrared heating lamps are simultaneously arrayed within the modular furnace body; Multiple segmented temperature controllers are simultaneously installed inside the modular furnace body, and each segmented controller is electrically connected to each infrared heating lamp. Multiple non-contact infrared thermometers are simultaneously installed inside the modular furnace, and each of the non-contact infrared thermometers is electrically connected to each of the infrared heating lamps and the segmented temperature controller.

7. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The laser peeling unit includes: A fully automatic laser peeling machine is located at the front end of the third independent conveying channel. The fully automatic laser peeling machine is equipped with a positioning sensor and a dust collection device. A semi-automatic laser peeling machine is set on the same horizontal line as the fully automatic laser peeling machine. The semi-automatic laser peeling machine is equipped with a positioning sensor and a dust collection device.

8. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 1, characterized in that, The finished product cleaning and passivation unit includes: The finished product cleaning and passivation zone is located on the second independent conveying channel near the front end, and has the same structure as the epoxy copper busbar cleaning main line unit. An anti-oxidation treatment zone is set on the second independent conveying channel and located behind the finished product cleaning and passivation zone. The anti-oxidation treatment zone is equipped with an anti-oxidant spraying and drying unit. The finished product drying area is located on the second independent conveying channel and behind the anti-oxidation treatment area. A hot air drying oven is installed in the finished product drying area.

9. The fully automatic closed-loop copper busbar epoxy coating production line according to claim 3, characterized in that, It also includes multiple material detection sensors, which are respectively installed at the inlet and outlet ends of the epoxy copper busbar cleaning main line unit, the water blowing and drying preheating unit, the automatic powder dipping unit, the infrared segmented baking and curing unit, the laser peeling unit, and the finished product cleaning and passivation unit.

10. A fully automatic closed-loop copper busbar epoxy coating production line according to claim 3, characterized in that, It also includes a PLC centralized electrical control system, which comprises: a PLC main controller, a human-machine interface touch screen, a unit-independent electrical control module, a centralized control module, a data storage module, and a three-color buzzer alarm light. The PLC main controller is electrically connected to the epoxy copper busbar cleaning main line unit, the water blowing and drying preheating unit, the automatic powder impregnation unit, the infrared segmented baking and curing unit, the laser peeling unit, the finished product cleaning and passivation unit, and multiple material detection sensors. The PLC main controller is electrically connected to the human-machine interface touch screen. The unit-independent electrical control module, the centralized control module, the data storage module, and the three-color buzzer alarm light are all located within the epoxy copper busbar cleaning main line unit, the water blowing and drying preheating unit, the automatic powder impregnation unit, the infrared segmented baking and curing unit, the laser peeling unit, and the finished product cleaning and passivation unit, and are all electrically connected to the PLC main controller.

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