Electrophoresis plastic spraying coating equipment for shell of energy storage case

Abstract

The invention belongs to the technical field of electrophoresis plastic spraying equipment, and particularly relates to energy storage case shell electrophoresis plastic spraying coating equipment which comprises an electrophoresis tank, a primary drying machine, a secondary drying machine, a plastic spraying channel, a tertiary drying machine and conveying equipment. The electrophoresis pool, the primary dryer, the secondary dryer, the plastic spraying channel and the tertiary dryer form an assembly line; the conveying equipment is arranged right above the assembly line to clamp and convey the case; the plastic spraying channel comprises a powder suction device and a powder spraying device, the powder suction device comprises a powder suction grid box and a dust purifier, and the powder suction grid box clamps the powder spraying device on the inner side; according to the scheme, through automatic conveying, integrated electrophoresis and dust recovery, the problem of pain points of traditional coating equipment is effectively solved, the production efficiency, the coating quality and the operation safety are remarkably improved, and the device is suitable for surface treatment of large-scale energy storage case shells.

Description

Technical Field

[0001] This invention relates to the field of electrophoretic powder coating equipment technology, specifically to an electrophoretic powder coating equipment for the outer shell of an energy storage unit. Background Technology

[0002] Energy storage equipment is commonly used in various environments, such as outdoor photovoltaic energy storage power stations and wind power storage power stations. The enclosures are susceptible to corrosion from moisture, salt spray, and chemicals. Electrophoresis technology allows the coating to evenly cover the enclosure surface and form a dense coating, effectively isolating external corrosive media from contact with the metal substrate of the enclosure, significantly extending its service life. For example, in coastal areas, salt spray severely corrodes equipment; electrophoretic powder-coated energy storage enclosures are better able to withstand this corrosive environment. However, traditional equipment still has the following drawbacks: 1) Low level of automation: Traditional equipment relies on manual handling and positioning, resulting in low production efficiency and easy uneven coating or contamination due to improper operation.

[0003] 2) Severe dust pollution: The suspended powder generated during the powder coating process is difficult to recycle efficiently, which not only wastes materials but may also affect the working environment and workers' health.

[0004] 3) Lack of operability of conveying device: The fixing device of traditional electrophoresis chassis lacks flexibility, which means that the chassis needs to be transferred to the next process by manual intervention on the production line, which increases the number of processes and operation time and reduces production efficiency. For the reasons mentioned above, we propose an electrophoretic powder coating equipment for energy storage enclosures to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an electrophoretic powder coating equipment for the outer shell of an energy storage chassis to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electrophoretic powder coating equipment for the outer shell of an energy storage chassis, comprising an electric pool, a primary dryer, a secondary dryer, a powder coating channel, a tertiary dryer, and a conveying device; The electric pool, primary dryer, secondary dryer, powder coating channel, and tertiary dryer form a production line, with the conveying equipment set directly above the production line as a clamping and conveying box. The powder coating channel includes a powder suction device and a powder spraying device. The powder suction device includes a powder suction grid box and a dust purifier. The powder suction grid box clamps the powder spraying device on the inside. The powder spraying device includes a mounting base, a powder supply tank, and a robotic arm. The robotic arm is mounted on the mounting base, and a spray nozzle is installed at the other end of the robotic arm. The conveying equipment includes a track and a suspended conveyor, which clamps the chassis to complete the immersion and handling tasks; the suspended conveyor includes a suspension base, a drive motor, drive wheels, and a clamping device; The clamping device includes a rotating base, a telescopic motor, a clamp, and clamping components. The rotating base is located at the bottom of the suspension seat and consists of a rotating motor and a rotating disk. The rotating motor is embedded in the suspension seat and rotates in a directional manner of ±90 degrees. A rotating disk is fixed to the bottom of the rotating motor, and a telescopic motor is installed at the bottom of the rotating disk. A clamp is installed at the bottom of the telescopic motor, and two opposing clamping components are provided at the bottom of the clamp. The clamping device carries the clamping components to complete the rotation, telescopic, and clamping actions.

[0007] Preferably, the electrophoresis pool is set at the initial position of the production line, and the electrophoresis pool is provided with multiple liquid tanks, including a surface pretreatment tank, a water washing tank, an electrophoresis tank, and an electrophoresis post-treatment tank; The next step after electrophoresis is a primary dryer. The casing after electrophoresis enters the primary dryer for drying. Inside the dryer, there is a conveyor belt with raised bases evenly distributed diagonally on the conveyor belt. The casing is placed on the raised bases. The next step of the primary dryer is a cleaning tank that includes an ultrafiltration cleaning tank and an ion water cleaning tank. The next process of the secondary dryer is equipped with a powder coating channel; The next step in the powder coating channel is a three-stage dryer. An X-ray thickness gauge is installed at the top of the discharge port of the three-stage dryer. The X-ray thickness gauge uses X-rays to inspect the surface of the machine casing as it passes through.

[0008] Preferably, the upper side of the electric pool is provided with a cover plate, the bottom of the cover plate is provided with a hinge for flipping, and the outer side of the cover plate is provided with a support rod, which is used for support when the cover plate is flipped outward. The inner side of the cover plate is smoothed and the surface is located on the side of the liquid tank of the electric pool. When tilted and erected, the dripping liquid slides down the inner side and collects the splashed liquid. The bottom of the electric pool is equipped with a base, on which multiple proximity sensors are installed. A buzzer is installed inside the base, and the proximity sensors are electrically connected to the buzzer.

[0009] Preferably, the dust-absorbing grid box has a grid opening on the side near the dust spraying device; a negative pressure fan is installed inside the dust-absorbing grid box, and when dust appears at the dust-absorbing grid box, it is attracted by the suction force generated by the negative pressure fan; an air duct is installed on the side of the dust-absorbing grid box away from the dust spraying device, and the other end of the air duct is connected to the dust purifier, and the air duct and the negative pressure fan are interconnected; a negative pressure flow chamber is provided inside the dust-absorbing grid box, and the negative pressure flow chamber is connected to the air duct, and a secondary negative pressure fan is installed at the connection between the air duct and the negative pressure flow chamber to provide power for dust to enter the air duct; The dust purifier includes a conical purification tank, a dust hopper, and an air exhaust pipe. The inner cavity of the conical purification tank is provided with a spiral channel, the diameter of which gradually decreases from top to bottom. The bottom of the conical purification tank is equipped with an ash hopper, and the spiral cavity is connected downward to the inner cavity of the ash hopper. A vortex hood is provided at the top of the inner cavity of the ash hopper. The top of the conical purification tank is equipped with a filtered air outlet, and an air exhaust pipe is installed on the outside of the filtered air outlet. An air filter cartridge is fitted to the bottom of the air exhaust pipe. The air discharged outward through the air exhaust pipe is filtered again at the air filter cartridge before clean air is discharged, thus completing the dust filtration. The spiral cavity has upwardly protruding cavity fins evenly spaced on its channel wall. The cavity fins are arc-shaped and narrow at both ends and gradually widen in the middle. When dust is transported downward along the spiral cavity, the cavity fins will break and cut the dust clumps that pass through.

[0010] Preferably, a powder supply tank is installed on one side of the top of the mounting base, and a powder suction pump is installed on one side of the robotic arm; the inlet end of the powder suction pump is connected to the powder supply tank through a hose, and the outlet end of the powder suction pump is connected to the spray head; the spraying position of the spray head is controlled by the robotic arm.

[0011] Preferably, the top of the track is equipped with multiple ceiling brackets; the ceiling brackets are fixed upwards to the roof to provide support for the track; the bottom of the track is provided with a sliding rod, which is inserted into the suspended conveyor device to provide auxiliary support and limit the movement of the suspended conveyor device during operation. The top of the suspension seat is provided with an L-shaped limiting edge, which is engaged with the side of the track to limit movement. A drive motor is provided on one side of the suspension seat, and a drive wheel is provided on the top of the suspension seat. The drive wheel is fixed on the drive shaft of the drive motor, and the top of the drive wheel abuts against the bottom surface of the track. The drive motor drives the drive wheel to rotate, causing the suspension seat to move on the track. A track groove is provided on the bottom surface of the track near the drive wheel, and the track groove engages the drive wheel on the inside.

[0012] Preferably, the clamping assembly includes a crossbar, a vertical bar, and a clamping head. The crossbar is fixed to the clamp, and the vertical bar is fixed diagonally to the crossbars on both sides and extends downward. The vertical bar is provided with a clamping head, which clamps the chassis under the action of the clamp. The clamping head includes a clamping head base and a clamping head panel. The clamping head panel is installed inside the clamping head base, and a fixing rod is installed between the clamping head panel and the clamping head base.

[0013] Preferably, the inner cavity of the clamping head base is equipped with a power connector, one end of which is connected to a conductive post, and the other end of the conductive post is equipped with a conductive head. The conductive head is located on the inner side of the clamping head panel. When the clamping head panel clamps the chassis surface, the conductive head abuts against the chassis surface to energize the chassis surface. The conductive post is a telescopic post with a spring sleeved on its outer side. The conductive head is movably embedded in the clamping head panel and moves synchronously with the conductive post. The telescopic post and spring enable the conductive head to have an elastic retraction function, keeping the conductive head always in contact with the surface of the chassis. A sealing ring is sleeved at the connection between the conductive head and the clamping head panel. A partition is provided in the inner cavity of the clamping head base to seal the conductive head.

[0014] Preferably, a displacement sensor and a video monitor are installed on the side of the suspension base, and the displacement sensor transmits displacement data in real time; Two video monitors are provided, symmetrically arranged on both sides of the suspension base, with the video monitors facing downwards and aligned with the clamping device, for observing the condition of the chassis; the video monitor includes a monitor box, a mounting bracket, and a telescopic rod, the telescopic rod being an electrically controlled telescopic rod; The monitor box is rotatably mounted on the mounting frame, and the telescopic rod is positioned between the mounting frame and the monitor box. When the telescopic rod extends or retracts, it causes the monitor box to change its orientation angle.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This patented solution effectively addresses the pain points of traditional coating equipment through automated conveying, integrated electrophoresis, and dust recovery, significantly improving production efficiency, coating quality, and operational safety. It is suitable for surface treatment of large-scale energy storage enclosures. The suspended conveyor system enables automatic transport of the machine casing between different processes, reducing manual intervention and improving production efficiency.

[0016] The clamping head integrates a conductive function, automatically contacting the chassis via a flexible conductive head, avoiding additional wiring and improving electrophoresis stability; The robotic arm, combined with a powder spraying device, enables precise spraying and ensures uniform coating. High-efficiency dust recovery adopts a spiral cavity + cavity fin structure, uses centrifugal force to separate dust, and collects it through a dust hopper with a recovery rate of ≥95%; and the air is then filtered twice through an air filter cartridge to ensure environmental compliance. The equipment also features safety linkage functions: linkage control automatically alarms or shuts down when personnel approach to avoid safety accidents; video monitors the status of the chassis in real time, making it easy to detect abnormalities in a timely manner. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall invention; Figure 2 This is a top view of the entire invention; Figure 3 This is a schematic diagram of the powder coating channel and the three-stage drying machine of the present invention; Figure 4 This is a schematic diagram of the powder coating channel of the present invention; Figure 5 This is a schematic diagram of the powder suction device of the present invention; Figure 6 This is a side sectional view of the powder-absorbing grid box of the present invention; Figure 7 This is a cross-sectional view of the conical purification tank of the present invention; Figure 8 This is an enlarged schematic diagram of the dorsal side of the cavity fin of the present invention; Figure 9 This is a schematic diagram of the suspended conveying device of the present invention; Figure 10 This is a cross-sectional view of the clamping head of the present invention; Figure 11 This is a schematic diagram of the video surveillance device of the present invention; Figure 12 This is a top view of the conveyor belt and raised base of the present invention.

[0018] In the diagram: 10. Electric swimming pool, 101. Cover plate, 102. Support rod, 103. Base; 20 single-stage dryer, 201 raised base; 30 cleaning tanks; 40 Secondary Dryer; 50 powder coating tunnels; 501 Dust suction device, 501-1 Dust suction grid box, 501-2 Grid opening, 501-3 Air duct, 501-4 Conical purification tank, 501-5 Ash hopper, 501-6 Filtered air outlet, 501-7 Air exhaust pipe, 501-8 Spiral cavity, 501-9 Cavity fin; 502 powder spraying device, 502-1 mounting base, 502-2 powder supply tank, 502-3 robotic arm, 502-4 powder suction pump, 502-5 nozzle; 60 triple dryer, 601 X-ray thickness gauge; 70 Conveying equipment, 701 Track, 702 Slide rod, 703 Ceiling frame; 704 Suspension Conveying Device, 704-1 Suspension Base, 704-2 Limiting Edge, 704-3 Drive Motor, 704-4 Displacement Sensor, 704-5 Drive Wheel, 704-6 Rotating Base, 704-7 Telescopic Motor, 704-8 Clamp; 704-9 clamping assembly, 704-9-1 crossbar, 704-9-2 upright; 704-9-3 clamping head, 704-9-3-1 clamping head base, 704-9-3-2 clamping head panel, 704-9-3-3 partition, 704-9-3-4 electrical connector, 704-9-3-5 conductive post, 704-9-3-6 conductive head; 704-9-10 Video Monitor, 704-9-10-1 Monitor Box, 704-9-10-2 Mounting Rack, 704-9-10-3 Telescopic Pole. Detailed Implementation

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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. Example

[0021] Please see Figure 1-12 The present invention provides the following technical solution: An electrophoretic powder coating equipment for the outer shell of an energy storage enclosure includes an electrophoretic pool 10, a primary dryer 20, a cleaning pool 30, a secondary dryer 40, a powder coating channel 50, a tertiary dryer 60, and a conveying device 70. The production line consists of an electric swimming pool 10, a primary dryer 20, a washing pool 30, a secondary dryer 40, a powder coating channel 50, and a tertiary dryer 60. The conveying equipment 70 is located directly above the production line and is responsible for clamping and conveying the machine box. The electrophoresis pool 10 is set at the initial position of the production line. The electrophoresis pool 10 is equipped with multiple liquid tanks, including a surface pretreatment tank, a water washing tank, an electrophoresis tank, and an electrophoresis posttreatment tank. The chassis is sequentially immersed in the above tanks for washing treatment. The upper side of the electric swimming pool 10 is provided with a cover plate 101, the bottom of the cover plate 101 is provided with a hinge for flipping, and the outer side of the cover plate 101 is provided with a support rod 102. When the cover plate 101 is flipped outward, it is supported by the support rod 102. The inner side of the cover plate 101 is smoothed and the surface is located on the side of the liquid tank of the electric pool 10. When tilted and erected, the dripping liquid can slide down the inner side, making it easy to collect the splashed liquid. The bottom of the electric pool 10 is provided with a base 103, on which multiple proximity sensors are provided. A buzzer is provided inside the base 103, and the proximity sensors are electrically connected to the buzzer. When someone approaches, the proximity sensors trigger an active reminder. In automated production, it can be linked with the production line. When someone forcibly approaches the production line, the production line will be stopped to avoid safety incidents. The next step after electrophoresis is the primary dryer 20. The electrophoretic casing enters the primary dryer 20 for drying. The primary dryer 20 is a tunnel dryer. A conveyor belt is set inside the dryer. Elevated bases 201 are evenly distributed diagonally on the conveyor belt. The casing is placed on the elevated bases 201 and dried using the dryer. The next step after the primary dryer 20 is the cleaning tank 30, which has the same structure as the electric pool 10. The cleaning tank 30 includes an ultrafiltration cleaning tank and an ion water cleaning tank. After being rinsed in the cleaning tank 30, the dried machine box enters the secondary dryer 40 for drying. The secondary dryer 40 has the same structure as the primary dryer 20. The next process after the secondary dryer 40 is equipped with a powder coating channel 50, which includes a powder suction device 501 and a powder spraying device 502. The dust collection device 501 includes a dust collection grid box 501-1 and a dust purifier. Multiple dust collection grid boxes 501-1 are provided, which clamp the dust spraying device 502 inside from the left and right sides. The dust collection grid box 501-1 has a grid opening 501-2 on the side near the dust spraying device. A negative pressure fan is installed in the inner cavity of the dust collection grid box 501-1. When dust appears at the dust collection grid box 501-1, it is attracted by the suction force generated by the negative pressure fan. A duct 501-3 is installed on the side of the dust collection grid box 501-1 away from the dust spraying device 502. The other end of the duct 501-3 is connected to the dust purifier. The duct 501-3 is interconnected with the negative pressure fan. The inner cavity of the dust collection grid box 501-1 is provided with a negative pressure flow chamber, which is connected to the air duct 501-3. A secondary negative pressure fan is installed at the connection between the air duct 501-3 and the negative pressure flow chamber to provide power for dust to enter the air duct 501-3. The dust purifier includes a conical purification tank 501-4, a dust hopper 501-5, and an air exhaust pipe 501-7. The inner cavity of the conical purification tank 501-4 is provided with a spiral channel 501-8, the top of which is connected to the air duct 501-3. The diameter of the spiral channel 501-8 gradually decreases from top to bottom. The bottom of the conical purification tank 501-4 is equipped with a dust hopper 501-5, and the spiral channel 501-8 is connected downward to the inner cavity of the dust hopper 501-5. The top of the inner cavity of the dust hopper 501-5 is provided with a vortex hood. The top of the conical purification tank 501-4 is provided with a filtered air outlet 501-6, and the air exhaust pipe 501-7 is installed on the outside of the filtered air outlet 501-6. An air filter cartridge is fitted to the bottom of the air exhaust pipe 501-7. The air discharged outward through the air exhaust pipe 501-7 is filtered again at the air filter cartridge, and then clean air is discharged, thus completing the dust filtration. The spiral cavity 501-8 has upwardly protruding cavity fins 501-9 evenly spaced on its channel wall. The cavity fins 501-9 are arc-shaped and narrow at both ends and gradually widen in the middle. When dust is transported downward along the spiral cavity 501-8, the cavity fins 501-9 will break and cut the dust clumps that pass by, preventing them from sticking and accumulating, and avoiding affecting the separation effect. Two powder coating devices 502 are provided and arranged opposite each other. Each powder coating device 502 includes a mounting base 502-1, a powder supply tank 502-2, and a robotic arm 502-3. The robotic arm 502-3 is mounted on the mounting base 502-1, and a spray head 502-5 is mounted on the other end of the robotic arm 502-3. The powder supply tank 502-2 is mounted on one side of the top of the mounting base 502-1, and a powder suction pump 502-4 is mounted on one side of the robotic arm 502-3. The inlet end of the powder suction pump 502-4 is connected to the powder supply tank 502-2 through a hose, and the outlet end of the powder suction pump 502-4 is connected to the spray head 502-5. The spraying position of the spray head 502-5 is controlled by the robotic arm 502-3 to achieve unmanned powder coating, and the dust generated during powder coating is absorbed and filtered by the powder suction device 501. The next process after the powder coating channel 50 is the three-stage dryer 60. An X-ray thickness gauge 601 is installed at the top of the discharge port of the three-stage dryer 60. The X-ray thickness gauge 601 uses X-rays to inspect the surface of the machine casing that it passes through. The conveying equipment 70 includes a track 701 and a suspended conveying device 704. Multiple ceiling brackets 703 are installed on the top of the track 701. The ceiling brackets 703 are fixed upward to the roof to provide support for the track 701. A suspended conveyor 704 is slidably connected below the track 701, which is used to hold the machine box to complete the tasks of immersion and transportation; a slide bar 702 is provided at the bottom of the track 701, and the slide bar 702 is inserted into the suspended conveyor 704 to provide auxiliary support and limit the movement of the suspended conveyor 704. The suspended conveying device 704 includes a suspension base 704-1, a drive motor 704-3, a drive wheel 704-5, and a clamping device. The top of the suspension base 704-1 is provided with an L-shaped limiting edge 704-2, which engages with the side of the track 701 to provide a limiting function. The drive motor 704-3 is located on one side of the suspension base 704-1, and the drive wheel 704-5 is located on the top of the suspension base 704-1. Wheel 704-5 is fixed on the drive shaft of drive motor 704-3, and the top of drive wheel 704-5 abuts against the bottom surface of track 701; drive motor 704-3 drives drive wheel 704-5 to rotate, causing suspension seat 704-1 to move on track 701; a track groove is provided on the bottom surface of track 701 near drive wheel 704-5, and the track groove engages drive wheel 704-5 on the inside to assist displacement; The bottom of the suspension base 704-1 is equipped with a clamping device, which includes a rotating base 704-6, a telescopic motor 704-7, a clamp 704-8, and a clamping assembly 704-9. The rotating base 704-6 is located at the bottom of the suspension base 704-1 and consists of a rotating motor and a rotating disk. The rotating motor is embedded in the suspension base 704-1 and rotates ±90 degrees. The rotating disk is fixed to the bottom of the rotating motor, and the telescopic motor 704-7 is installed at the bottom of the rotating disk. The clamp 704-8 is installed at the bottom of the telescopic motor 704-7. The clamp 704-8 can be a hydraulic or electrically controlled clamp, and the bottom of the clamp 704-8 is equipped with two opposing clamping assemblies 704-9. The clamping device, carrying the clamping assemblies 704-9, can complete the rotation, telescopic, and clamping actions, replacing manual intervention steps, facilitating standardized operations, and is very convenient. The clamping assembly 704-9 includes a crossbar 704-9-1, a vertical bar 704-9-2, and a clamping head 704-9-3. The crossbar 704-9-1 is fixed to the clamp 704-8. The vertical bar 704-9-2 is fixed diagonally to the crossbars 704-9-1 on both sides and extends downward. The vertical bar 704-9-2 is provided with a clamping head 704-9-3, which clamps the chassis under the action of the clamp 704-8. The clamping head 704-9-3 includes a clamping head base 704-9-3-1 and a clamping head panel 704-9-3-2. The clamping head panel 704-9-3-2 is installed on the inner side of the clamping head base 704-9-3-1, and a fixing rod is installed between the clamping head panel 704-9-3-2 and the clamping head base 704-9-3-1. The inner cavity of the clamping head base 704-9-3-1 is equipped with a power connector 704-9-3-4. One end of the power connector 704-9-3-4 is connected to a conductive post 704-9-3-5, and the other end of the conductive post 704-9-3-5 is equipped with a conductive head 704-9-3-6. The conductive head 704-9-3-6 is located on the inner side of the clamping head panel 704-9-3-2. When the clamping head panel 704-9-3-2 clamps the surface of the chassis, the conductive head 704-9-3-6 abuts against the surface of the chassis to energize the surface of the chassis, realizing the integration of clamping and energizing without the need for additional power connection, which is very convenient. The conductive post 704-9-3-5 is a telescopic post, and a spring is sleeved on the outside of the conductive post 704-9-3-5. The conductive head 704-9-3-6 is movably embedded in the clamping head panel 704-9-3-2 and moves synchronously with the conductive post 704-9-3-5. The telescopic post and spring enable the conductive head 704-9-3-6 to have an elastic retraction function, keeping the conductive head 704-9-3-6 always in contact with the surface of the chassis. A sealing ring is sleeved at the connection between the conductive head 704-9-3-6 and the clamping head panel 704-9-3-2. A partition 704-9-3-3 is provided in the inner cavity of the clamping head base 704-9-3-1, which serves to seal the conductive head 704-9-3-4. The side of the suspension base 704-1 is equipped with a displacement sensor 704-4 and a video monitor 704-9-10. The displacement sensor 704-4 transmits displacement data in real time. There are two video monitors 704-9-10, which are symmetrically arranged on both sides of the suspension base 704-1, with the video monitors 704-9-10 facing downwards and aligned with the clamping device, for observing the condition of the chassis; The video monitor 704-9-10 includes a monitor box 704-9-10-1, a mounting bracket 704-9-10-2, and a telescopic rod 704-9-10-3, wherein the telescopic rod 704-9-10-3 is an electrically controlled telescopic rod. The monitor box 704-9-10-1 is rotatably mounted on the mounting bracket 704-9-10-2. The telescopic rod 704-9-10-3 is positioned between the mounting bracket 704-9-10-2 and the monitor box 704-9-10-1. When the telescopic rod 704-9-10-3 extends or retracts, it causes the monitor box 704-9-10-1 to change its orientation angle, facilitating a comprehensive view of the chassis.

[0022] Working principle: This energy storage enclosure shell electrophoretic powder coating equipment achieves fully mechanized operation of the entire surface treatment process by combining multi-process assembly line operation with an automated conveyor system. Conveying equipment 70: Automated transmission and clamping, driven by drive motor 704-3, the drive wheel 704-5 rolls on track 701 to achieve horizontal movement; L-shaped limiting edge 704-2 cooperates with the track groove to ensure stable operation; The 704-6 rotating base can rotate ±90 degrees to adapt to the posture requirements of different processes, such as immersion and spraying angle adjustment. The telescopic motor 704-7 and the clamp 704-8 enable vertical telescopic and clamping actions, accurately positioning the chassis; Integrated conductive head design: The conductive head 704-9-3-6 inside the clamping head 704-9-3 contacts the surface of the chassis during clamping, providing power for the electrophoresis process without the need for additional wiring.

[0023] The 704-4 displacement sensor tracks the conveyor position in real time to ensure precise process connections. The 704-9-10 video monitor uses an electrically controlled telescopic rod and a rotating mechanism to monitor the status of the chassis from multiple angles and promptly detect abnormalities such as coating defects or loose clamping. The entire process is automated, from immersion and washing to drying, powder coating, and testing, all completed by the coordinated operation of equipment, reducing errors caused by human intervention and improving production efficiency.

[0024] The electrophoresis pool 10 has a multi-tank immersion function. The chassis is held by the conveyor 70 and is sequentially immersed in the surface pretreatment tank for degreasing and rust removal, the water washing tank, the electrophoresis tank, and the electrophoresis post-treatment tank for neutralization and sealing. In the electrophoresis tank, the chassis, usually the anode or cathode, acts as the electrode. Charged paint particles migrate directionally under the action of the electric field and are deposited on the surface of the chassis to form a uniform electrophoretic paint film. The clamping head 704-9-3 has an elastic conductive head 704-9-3-6 that always abuts against the surface of the chassis to form an electric field. The cover plate 101 is opened by hinge, and the smooth inner slope guides splashed liquid back into the tank, reducing waste and pollution.

[0025] When proximity sensors and buzzers detect personnel approaching, they trigger an alarm, causing the production line to stop and preventing safety accidents.

[0026] Primary dryer 20 and secondary dryer 40: The machine housing is placed on the conveyor belt with raised bases 201 diagonally distributed to improve drying uniformity. The electrophoretic paint film is initially cured by hot air circulation or infrared heating. After electrophoresis, the paint film is fixed by primary drying. After cleaning, the residual moisture is removed by secondary drying to prepare for powder coating. Cleaning tank 30: Ultrafiltration cleaning tank, which uses ultrafiltration membrane to remove floating paint and impurities from the surface of electrophoretic paint film and recover the paint; Ion water cleaning tank, which further cleans with high-purity ion water to ensure that there is no electrolyte residue on the surface and avoids affecting the adhesion of subsequent powder coating; Powder coating channel 50: The robotic arm 502-3 drives the nozzle 502-5 to move, and the powder is drawn from the powder supply tank 502-2 by the powder suction pump 502-4. The powder is adsorbed on the surface of the machine box by the electrostatic principle of the nozzle being charged, so that the powder is adsorbed and uniformly sprayed. The dust collection grid boxes 501-1 on both sides generate suction through negative pressure fans to capture the powder splashed during the powder coating process. The spiral channel 501-8 uses centrifugal force to separate the powder particles from the air. The particles fall into the dust hopper 501-5, while the air is discharged through the filtered air outlet 501-6. The channel fins 501-9 break up dust clumps to prevent adhesion and blockage, improving separation efficiency. The air filter cartridge at the end of the air exhaust pipe 501-7 provides further filtration, achieving secondary filtration and ensuring clean emissions.

[0027] Purification principle: During the powder coating process, the splashed powder is drawn into the grid opening 501-2 by the airflow and enters the powder suction grid box 501-1. The powder suction grid boxes 501-1 on the left and right sides clamp the powder spraying device 502, forming a symmetrical negative pressure field to ensure that the powder is captured in all directions and reduce escape.

[0028] The dust collection grid box 501-1 is connected to the dust purifier via a duct 501-3 on the side opposite to the dust spraying device 502, and a secondary negative pressure fan is installed at the connection between the duct 501-3 and the negative pressure flow chamber. The secondary negative pressure fan further increases the airflow velocity, ensuring that the powder moves quickly toward the purifier and avoids it from remaining in the dust collection grid box 501-1.

[0029] After the powder-laden airflow enters the spiral cavity 501-8 through the duct 501-3, it moves downward in a spiral along the inner wall of the conical purification tank 501-4. Due to their large mass, the powder particles are thrown towards the cavity wall under the action of centrifugal force and separated from the air. The lighter air gathers towards the center of the cavity and continues to spiral upward. The diameter of the spiral cavity 501-8 gradually decreases from top to bottom, the airflow velocity gradually increases, the centrifugal force increases, and the separation efficiency of particles and air is further improved.

[0030] When dust particles pass through the cavity fin 501-9 with the airflow, they are cut and impacted by the arc-shaped structure, breaking into smaller particles. This avoids incomplete separation or sticking and clogging caused by particle agglomeration; it also optimizes the airflow field, reduces eddy current loss, and ensures a smooth separation process.

[0031] The separated powder particles slide down the cavity wall to the ash hopper 501-5 at the bottom of the conical purification tank 501-4, where they are collected by gravity for easy recycling.

[0032] The vortex cover at the top of the ash hopper can suppress airflow disturbances, prevent settled powder from being re-rolled up by the rising airflow, and improve collection efficiency.

[0033] The separated air enters the air exhaust pipe 501-7 from the filtered air outlet 501-6 at the top of the conical purification tank 501-4. The air filter cartridge (filter element or filter screen) fitted at the bottom performs the final stage of filtration on the air, trapping residual fine dust particles.

[0034] The air, after centrifugal separation and dual filtration, meets environmental emission standards and is safely discharged through air emission pipe 501-7.

[0035] After powder coating, the casing is heated in a three-stage dryer to melt, level, and solidify the powder, forming a hard coating. When the material is discharged, it passes through an X-ray thickness gauge 601 to detect the coating thickness using X-rays, providing real-time data feedback to ensure that the coating quality meets the standards.

[0036] The equipment connects each processing stage in a production line manner. The chassis is automatically transported through the suspended conveyor device 70, and the process is completed in sequence, including surface pretreatment, electrophoretic coating, cleaning, powder coating, drying, and testing. No manual intervention is required throughout the process, ensuring standardized and efficient operation.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electrophoretic powder coating equipment for the outer shell of an energy storage enclosure, comprising an electrophoretic pool (10), a primary dryer (20), a cleaning pool (30), a secondary dryer (40), a powder coating channel (50), a tertiary dryer (60), and a conveying device (70), characterized in that: The electric pool (10), primary dryer (20), washing pool (30), secondary dryer (40), powder coating channel (50), and tertiary dryer (60) form a production line, and the conveying equipment (70) is set directly above the production line as a clamping and conveying machine box; The powder coating channel (50) includes a powder suction device (501) and a powder spraying device (502). The powder suction device (501) includes a powder suction grid box (501-1) and a dust purifier. The powder suction grid box (501-1) clamps the powder spraying device (502) on the inside. The powder spraying device (502) includes a mounting base (502-1), a powder supply tank (502-2), and a robotic arm (502-3). The robotic arm (502-3) is mounted on the mounting base (502-1), and a nozzle (502-5) is mounted on the other end of the robotic arm (502-3). The conveying equipment (70) includes a track (701) and a suspended conveying device (704). The suspended conveying device (704) clamps the chassis to complete the tasks of immersion and handling. The suspended conveying device (704) includes a suspension base (704-1), a drive motor (704-3), a drive wheel (704-5), and a clamping device. The clamping device includes a rotating base (704-6), a telescopic motor (704-7), a clamp (704-8), and a clamping assembly (704-9). The rotating base (704-6) is located at the bottom of the suspension seat (704-1) and consists of a rotating motor and a rotating disk. The rotating motor is embedded in the suspension seat (704-1) and rotates in a directional manner of ±90 degrees. The rotating disk is fixed to the bottom of the rotating motor, and the telescopic motor (704-7) is installed at the bottom of the rotating disk. The clamp (704-8) is installed at the bottom of the telescopic motor (704-7), and two opposing clamping assemblies (704-9) are provided at the bottom of the clamp (704-8). The clamping device carries the clamping assembly (704-9) to complete the actions of rotation, telescopic extension, and clamping.

2. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that: The electrophoresis pool (10) is set at the initial position of the production line. The electrophoresis pool (10) is equipped with multiple liquid tanks, including a surface pretreatment tank, a water washing tank, an electrophoresis tank, and an electrophoresis posttreatment tank. The next step of the electrophoresis pool (10) is a primary dryer (20). The electrophoretic casing enters the primary dryer (20) for drying. A conveyor belt is set inside the dryer, and raised bases (201) are evenly distributed diagonally on the conveyor belt. The casing is placed on the raised bases (201). The next step after the primary dryer (20) is the cleaning tank (30); the cleaning tank (30) includes an ultrafiltration cleaning tank and an ion water cleaning tank. The next process of the secondary dryer (40) is equipped with a powder coating channel (50); The next process after the powder coating channel (50) is a three-stage dryer (60). An X-ray thickness gauge (601) is installed at the top of the discharge port of the three-stage dryer (60). The X-ray thickness gauge (601) inspects the surface of the chassis passing through it by X-rays.

3. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that: The electric pool (10) is provided with a cover plate (101) on the upper side. The bottom of the cover plate (101) is provided with a hinge for flipping. A support rod (102) is provided on the outer side of the cover plate (101). When the cover plate (101) is flipped outward, it is supported by the support rod (102). The inner side of the cover plate (101) is smoothed and the surface is located on the side of the liquid tank of the electric pool (10). When it is tilted and erected, the dripping liquid slides down the inner side and the splashed liquid is collected. The bottom of the electric pool (10) is provided with a base (103), and multiple proximity sensors are provided on the base (103). A buzzer is provided inside the base (103), and the proximity sensors are electrically connected to the buzzer.

4. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that: The dust-absorbing grid box (501-1) has a grid opening (501-2) on the side near the powder spraying. A negative pressure fan is installed inside the dust-absorbing grid box (501-1). When dust appears at the dust-absorbing grid box (501-1), it is attracted by the suction force generated by the negative pressure fan. A duct (501-3) is installed on the side of the dust-absorbing grid box (501-1) away from the powder spraying device (502). The other end of the duct (501-3) is connected to the dust purifier. The duct (501-3) is connected to the negative pressure fan. A negative pressure flow chamber is provided inside the dust-absorbing grid box (501-1). The negative pressure flow chamber is connected to the duct (501-3). A secondary negative pressure fan is installed at the connection between the duct (501-3) and the negative pressure flow chamber to provide power for the dust to enter the duct (501-3). The dust purifier includes a conical purification tank (501-4), a dust hopper (501-5), and an air exhaust pipe (501-7). The inner cavity of the conical purification tank (501-4) is provided with a spiral channel (501-8), and the diameter of the spiral channel (501-8) gradually decreases from top to bottom. The bottom of the conical purification tank (501-4) is equipped with an ash hopper (501-5), and the spiral cavity (501-8) is connected downward to the inner cavity of the ash hopper (501-5). A vortex hood is provided at the top of the inner cavity of the ash hopper (501-5). The top of the conical purification tank (501-4) is provided with a filtered air outlet (501-6), and an air exhaust pipe (501-7) is installed on the outside of the filtered air outlet (501-6). An air filter cartridge is fitted to the bottom of the air discharge pipe (501-7). The air discharged outward through the air discharge pipe (501-7) is filtered again at the air filter cartridge, and then clean air is discharged, thus completing the dust filtration. The spiral cavity (501-8) has upwardly protruding cavity fins (501-9) evenly spaced on the channel wall. The cavity fins (501-9) are arc-shaped. The cavity fins (501-9) are narrow at both ends and gradually widen in the middle. When dust is transported downward along the spiral cavity (501-8), the cavity fins (501-9) will break and cut the passing dust clumps.

5. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that: A powder supply tank (502-2) is installed on one side of the top of the mounting base (502-1), and a powder suction pump (502-4) is installed on one side of the robotic arm (502-3). The inlet end of the powder suction pump (502-4) is connected to the powder supply tank (502-2) through a hose, and the outlet end of the powder suction pump (502-4) is connected to the spray head (502-5). The spraying position of the spray head (502-5) is controlled by the robotic arm (502-3).

6. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that: The top of the track (701) is equipped with multiple ceiling brackets (703); the ceiling brackets (703) are fixed upwards to the roof to provide support for the track (701); the bottom of the track (701) is provided with a slide rod (702), and the slide rod (702) is inserted into the suspended conveyor (704) to provide auxiliary support and limit the movement of the suspended conveyor (704) during operation; The top of the suspension seat (704-1) is provided with an L-shaped limiting edge (704-2), which is engaged with the side of the track (701) to limit movement. A drive motor (704-3) is provided on one side of the suspension seat (704-1), and a drive wheel (704-5) is provided on the top of the suspension seat (704-1). The drive wheel (704-5) is fixed on the drive shaft of the drive motor (704-3), and the top of the drive wheel (704-5) abuts against the bottom surface of the track (701). The drive motor (704-3) drives the drive wheel (704-5) to rotate, causing the suspension seat (704-1) to move on the track (701). A track groove is provided on the bottom surface of the track (701) near the drive wheel (704-5), and the track groove engages the drive wheel (704-5) on the inside.

7. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 6, characterized in that: The clamping assembly (704-9) includes a crossbar (704-9-1), a vertical bar (704-9-2), and a clamping head (704-9-3). The crossbar (704-9-1) is fixed on the clamp (704-8), and the vertical bar (704-9-2) is fixed diagonally on the crossbars (704-9-1) on both sides and extends downward. The vertical bar (704-9-2) is provided with a clamping head (704-9-3), which clamps the chassis under the action of the clamp (704-8). The clamping head (704-9-3) includes a clamping head base (704-9-3-1) and a clamping head panel (704-9-3-2). The clamping head panel (704-9-3-2) is installed on the inner side of the clamping head base (704-9-3-1), and a fixing rod is installed between the clamping head panel (704-9-3-2) and the clamping head base (704-9-3-1).

8. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 7, characterized in that: The inner cavity of the clamping head base (704-9-3-1) is equipped with a power connector (704-9-3-4). One end of the power connector (704-9-3-4) is connected to a conductive post (704-9-3-5), and the other end of the conductive post (704-9-3-5) is equipped with a conductive head (704-9-3-6). The conductive head (704-9-3-6) is located on the inner side of the clamping head panel (704-9-3-2). When the clamping head panel (704-9-3-2) clamps the surface of the chassis, the conductive head (704-9-3-6) abuts against the surface of the chassis to energize the surface of the chassis. The conductive post (704-9-3-5) is a telescopic post, and a spring is sleeved on the outside of the conductive post (704-9-3-5). The conductive head (704-9-3-6) is movably embedded in the clamping head panel (704-9-3-2) and moves synchronously with the conductive post (704-9-3-5). The telescopic post and the spring enable the conductive head (704-9-3-6) to have an elastic retraction function, keeping the conductive head (704-9-3-6) always in contact with the surface of the chassis. A sealing ring is sleeved at the connection between the conductive head (704-9-3-6) and the clamping head panel (704-9-3-2). A partition (704-9-3-3) is provided in the inner cavity of the clamping head base (704-9-3-1) to seal the conductive head (704-9-3-4).

9. The electrophoretic powder coating equipment for the outer shell of an energy storage chassis according to claim 1, characterized in that... : A displacement sensor (704-4) and a video monitor (704-9-10) are installed on the side of the suspension base (704-1). The displacement sensor (704-4) transmits displacement data in real time. Two video monitors (704-9-10) are provided, symmetrically arranged on both sides of the suspension base (704-1), with the video monitors (704-9-10) facing downwards and aligned with the clamping device for observing the condition of the chassis; the video monitor (704-9-10) includes a monitor housing (704-9-10-1), a mounting bracket (704-9-10-2), and a telescopic rod (704-9-10-3), the telescopic rod (704-9-10-3) being an electrically controlled telescopic rod; The monitor box (704-9-10-1) is rotatably mounted on the mounting frame (704-9-10-2), and the telescopic rod (704-9-10-3) is located between the mounting frame (704-9-10-2) and the monitor box (704-9-10-1). When the telescopic rod (704-9-10-3) extends or retracts, it causes the monitor box (704-9-10-1) to change its orientation angle.

Images