A steel sheet photosensitive coating device for printing screen processing

Abstract

The present application relates to the technical field of printing screen processing, and specifically discloses a steel sheet photosensitive glue coating device for printing screen processing, which comprises a base shell, a cover shell, a controller, a pretreatment mechanism, a coating mechanism, a curing mechanism, a three-axis suction cup carrying module, a hot air machine, a glue solution supply device and an air purification device; the pretreatment mechanism is arranged at the top end of the base shell and located at the inner left side of the cover shell; the coating mechanism is arranged at the top end of the base shell and located at the inner middle part of the cover shell; and the curing mechanism is arranged at the top end of the base shell and located at the inner right side of the cover shell. The device is suitable for the application requirements of the industrial robot industry chain, integrates the functions of robot automatic carrying, automatic processing and online detection, adopts a step-by-step curing process of hot air pre-fixing and light final curing, effectively avoids glue film flow deformation, and improves the glue film bonding force and curing uniformity.

Description

Technical Field

[0001] This invention relates to the field of printing screen processing technology, specifically to a steel sheet photosensitive emulsion coating device for printing screen processing. Background Technology

[0002] In the high-end equipment manufacturing system with large-scale application of industrial robots, automatic handling, automated precision machining and online inspection are the core technologies for achieving efficient mass production of substrates. Stainless steel sheets are used as precision printing substrates for printing screens. The coating of photosensitive adhesive on their surface is a high-precision automated processing step that relies on robot handling to achieve process flow. The processing quality directly determines the precision and performance of the finished screen.

[0003] Existing steel sheet photosensitive adhesive coating equipment has significant technical defects, making it difficult to adapt to the mass production requirements of collaborative processing with industrial robots: First, the curing process is simplistic, the adhesive film is prone to flow and deformation, and the curing uniformity is poor, failing to meet the quality standards of automated precision processing; second, it lacks an integrated design for automated robot handling, requiring multiple transfers of workpieces, which can easily cause scratches and contamination of the substrate, resulting in poor processing continuity; third, it lacks online detection and double-sided collaborative operation structures, leading to low efficiency in single-sided step-by-step processing, insufficient consistency in double-sided processing accuracy, and low automation. In summary, existing equipment cannot meet the industry requirements for collaborative operation of industrial robots in handling, processing, and detection, thus restricting the automated, large-scale precision processing application of printing screen steel sheets. Summary of the Invention

[0004] The purpose of this invention is to provide a steel sheet photosensitive emulsion coating device for printing screen processing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel sheet photosensitive adhesive coating device for screen printing, comprising: a base shell, a cover shell, a controller, a pretreatment mechanism, a coating mechanism, a curing mechanism, a three-axis suction cup conveying module, a hot air blower, an adhesive supply device, and an air purification device; the cover shell is installed on the outer top of the base shell in a left-right direction; the controller is installed on the right front of the outer surface of the cover shell; the pretreatment mechanism is located at the top of the base shell and inside the cover shell on the left side; the coating mechanism is located at the top of the base shell and inside the cover shell in the middle; the curing mechanism is located at the top of the base shell. The three-axis suction cup transport module is mounted on the top of the housing via a bracket and is located above the pretreatment mechanism, coating mechanism, and curing mechanism. The three-axis suction cup transport module is electrically connected to the controller. The hot air blower is embedded in the right side of the housing and is electrically connected to the controller. The adhesive supply device is located on the left side of the front exterior of the housing and is electrically connected to the controller. The air purification device is located at the rear exterior of the housing and is connected to the top of the housing via a pipe. The air purification device is electrically connected to the controller.

[0006] Preferably, the coating mechanism includes: a workpiece fixing component, an auxiliary support component, and an execution component; the workpiece fixing component is disposed at the top of the base shell and located to the right of the pretreatment mechanism; the number of auxiliary support components is four, and the four auxiliary support components are respectively disposed at the top of the base shell and located at the four outer corners of the workpiece fixing component; the number of execution components is two sets, and each set of execution components consists of two, and the two sets of execution components are respectively embedded in the top of the base shell and located on the left and right sides below the workpiece fixing component.

[0007] Preferably, the workpiece fixing component includes: a slot seat, a movable frame, a first electric telescopic rod, and a rack block; the number of slot seats is two sets, with two slot seats in each set, and the two sets of slot seats are respectively installed at the front and rear ends of the top of the base shell; the number of movable frames is two, and the two movable frames are respectively inserted into the interior of the front and rear sets of slot seats in the left and right directions; the number of first electric telescopic rods is two, and the two first electric telescopic rods are respectively installed on the outer surface of the left slot seat in the front and rear sets in the left and right directions, and the telescopic ends of the two first electric telescopic rods are respectively fixedly connected to the outer surface of the front and rear movable frames, and the first electric telescopic rods are electrically connected to the controller; the number of rack blocks is two sets, with two rack blocks in each set, and the two sets of rack blocks are respectively installed above the left and right ends of the inner side of the front and rear slot seats.

[0008] Preferably, the workpiece fixing component further includes: a groove seat, a double-ended shaft seat, half gears, a frame, and a fixing module; the number of groove seats is two sets, with two groove seats in each set, and the two sets of groove seats are respectively installed on the inner left and right ends and front and rear sides of the two sets of slot seats; the number of double-ended shaft seats is two, and the two double-ended shaft seats are respectively rotatably installed on the inner sides of the left and right sets of groove seats in the front and rear directions; the number of half gears is two sets, with two half gears in each set, and the two sets of half gears are respectively fixedly installed on the outer front and rear ends of the shafts of the left and right double-ended shaft seats, the two sets of half gears are symmetrically arranged left and right, and respectively mesh with the lower part of the two sets of rack blocks; the frame is fixedly installed on the top of the two double-ended shaft seats in the left and right directions; the number of fixing modules is two sets, with two fixing modules in each set, and the two sets of fixing modules are respectively fixedly installed on the inner front and rear ends and left and right sides of the frame, and the fixing modules are electrically connected to the controller.

[0009] Preferably, the actuating components include: a vertical mounting plate, a slide rail frame, a lifting seat, a lead screw linear motor, a fourth electric telescopic rod, and a nozzle pipe; the vertical mounting plate is fixedly installed in the cavity of a groove opened at the top of the base housing along the vertical direction; there are two slide rail frames, which are respectively fixedly installed at the front and rear ends of the inner wall of the vertical mounting plate along the vertical direction; the lifting seat is sleeved on the outside of the front and rear slide rail frames along the front and rear direction; the lead screw linear motor is installed at the bottom of the inner side of the base housing through a bracket along the vertical direction, and is located below the inner side of the vertical mounting plate, the telescopic end of the lead screw linear motor is connected to the lower surface of the lifting seat, and the lead screw linear motor is electrically connected to the controller; the fourth electric telescopic rod is installed in the middle of the upper surface of the lifting seat along the vertical direction, and the fourth electric telescopic rod is electrically connected to the controller; the nozzle pipe is fixedly installed at the top of the telescopic end of the fourth electric telescopic rod along the front and rear direction.

[0010] Preferably, the nozzle pipes of the two left-side actuators are respectively connected to the adhesive supply device through pipelines, and the nozzle pipes of the two right-side actuators are respectively connected to the hot air blower through pipelines.

[0011] Preferably, the curing mechanism includes: a first conveyor belt, a three-axis moving platform, a curing lamp, a sensor, a flipping component, and a transfer component; the first conveyor belt is disposed at the top of the base housing in a left-right direction and is located on the right side of the frame, and the first conveyor belt is electrically connected to the controller; the three-axis moving platform is mounted on the top of the base housing via a bracket and is located above and outside the first conveyor belt, and the three-axis moving platform is electrically connected to the controller; the curing lamp is mounted on the top of the moving end of the three-axis moving platform, and the curing lamp is electrically connected to the controller; the sensor is mounted on the top rear side of the first conveyor belt, and the sensor is electrically connected to the controller; the flipping component is disposed at the top of the base housing and is located on the right side of the first conveyor belt; the transfer component is disposed at the top of the base housing and is located on the right side of the flipping component.

[0012] Preferably, the flipping component includes: a first fixed seat, a rotating seat, a first motor, a transmission belt assembly, a horizontal mounting plate, a conveyor belt assembly, a transmission gear assembly, a micro motor, and an auxiliary positioning component; there are two first fixed seats, which are respectively fixedly installed at the front and rear ends of the outer right side of the first conveyor belt; the rotating seat is rotatably installed on the inner side of the two first fixed seats via a rotating shaft; the first motor is installed on the top of the base housing and located behind the rear first fixed seat, and the first motor is electrically connected to the controller; one end of the transmission belt assembly is keyed to the rear end of the shaft of the rotating seat, and the other end of the transmission belt assembly is fixedly installed on the rotating end of the first motor; there are two horizontal mounting plates, which are respectively installed at the front and rear ends of the inner side of the rotating seat in the left-right direction; the conveyor belt assembly... The system comprises two sets of conveyor belt assemblies, each set consisting of two conveyor belt assemblies. The two sets of conveyor belt assemblies are respectively installed on the upper and lower inner sides of the front and rear horizontal mounting plates. There are also two transmission gear assemblies, each installed on the left side of the outer surface of the front and rear horizontal mounting plates. The upper and lower gear shafts of the two transmission gear assemblies are fixedly connected to the left pulley shafts of the two sets of conveyor belt assemblies. There are also two micro motors, each installed on the outside of the two transmission gear assemblies. The rotating end of each micro motor extends into the interior of the transmission gear assembly and is fixedly connected to the upper gear shaft of the transmission gear assembly. The micro motors are electrically connected to the controller. Finally, there are two auxiliary positioning components, each installed on the right side of the outer surface of the front and rear horizontal mounting plates.

[0013] Preferably, the transfer component includes: a second conveyor belt, a base frame, a second double-belt conveyor line, a telescopic module, a third fixed seat, a suction cup frame, and a second motor; the second conveyor belt is fixedly installed on the top of the base housing in the left-right direction and is located on the outer right side of the two front and rear horizontal mounting plates, and the second conveyor belt is electrically connected to the controller; the base frame is installed at the right rear outlet of the housing in the front-rear direction and is located behind the second conveyor belt; the second double-belt conveyor line is installed on the top of the base frame and is located behind the rear first fixed seat, and the second double-belt conveyor line is U-shaped. The telescopic module is electrically connected to the controller; the telescopic module is fixedly installed on the rear side of the outer surface of the second conveyor belt via a bracket and is located in front of the base frame, and the telescopic module is electrically connected to the controller; the third fixed seat is fixedly installed on the top of the telescopic end of the telescopic module in the left-right direction; the suction cup frame is rotatably installed on the inner side of the third fixed seat via a rotating shaft, the suction cup frame is T-shaped, and the suction cup frame is electrically connected to the controller; the second motor is fixedly installed on the left side of the outer surface of the third fixed seat, the rotating end of the second motor extends into the inner side of the third fixed seat and is fixedly connected to the axis of the suction cup frame, and the second motor is electrically connected to the controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The pre-treated steel sheet workpiece is precisely transferred to the workpiece fixing component using a three-axis suction cup transport module. The front and rear fixing modules clamp the edge of the workpiece, fixing it horizontally inside the frame. The first electric telescopic rod drives the moving frame to move back and forth along the slot seat. Through the meshing transmission of the rack block and half gear, the linear motion is converted into rotational torque, causing the frame and workpiece to alternately flip. When the workpiece flips to the vertical downward position, the corresponding auxiliary support component is activated to achieve auxiliary fixing. The linear motor of the screw of the two execution components drives the nozzle tube to rise. The fourth electric telescopic rod drives the nozzle tube to move up and down. The adhesive supply equipment delivers photosensitive adhesive to the nozzle tube to complete the uniform coating of one side of the workpiece. After coating, the auxiliary support component and execution component are reset, the frame flips to the other side, the other auxiliary support component fixes the workpiece, and the execution component blows constant temperature hot air through the nozzle tube to complete the initial fixing of the photosensitive adhesive. The air purification equipment continuously purifies the air inside the enclosure throughout the coating process to avoid impurities contaminating the adhesive film.

[0016] 2. After coating and initial fixing are completed, the three-axis suction cup transport module transfers the workpiece to the first conveyor belt of the curing mechanism. When the sensor detects that the workpiece has reached the designated curing station, it sends a signal to the controller, the first conveyor belt stops running, and the three-axis moving platform drives the curing lamp to move at a uniform speed along the workpiece surface and irradiate one side of the workpiece to complete the curing of the photosensitive adhesive. After curing, the first conveyor belt continues to run, transporting the workpiece to the flipping component, and then to the designated position via the conveyor belt assembly. The baffle of the auxiliary positioning component lifts and positions the workpiece, and the first motor drives the workpiece to flip over as a whole through the transmission belt assembly. Then, the conveyor belt assembly sends it back to the first conveyor belt for curing on the other side. After double-sided curing is completed, the workpiece is transported to the second conveyor belt via the first conveyor belt and the flipping component. The telescopic module of the transfer component adjusts the height of the suction cup frame, and after adsorbing the workpiece, it is driven by the second motor to flip it over and place the workpiece on the second double-belt conveyor line. Finally, it is transported to the outside of the equipment to await subsequent cutting, inspection and other processing steps.

[0017] In summary, this device is adapted to the application needs of the industrial robot industry chain, integrating robot automatic handling, automated processing, and online inspection functions. It adopts a step-by-step curing process of hot air pre-fixation and light-curing final curing, effectively avoiding film flow and deformation, improving film adhesion and curing uniformity. Flexible flipping clamping enables simultaneous double-sided coating processing of steel sheets. Relying on a three-axis suction cup handling robot module, it completes the entire process of automatic workpiece transfer, reducing workpiece damage and improving process connection efficiency. Combined with online detection and positioning, it achieves precise curing processing, ensuring the consistency of double-sided processing accuracy and quality. The machine has a high degree of automation, meeting the needs of high-end equipment manufacturing industry for robot collaborative processing and large-scale precision production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 for Figure 1 Internal diagram;

[0020] Figure 3 for Figure 2 Exploded view of the pretreatment facility;

[0021] Figure 4 for Figure 2 A schematic diagram of the coating mechanism;

[0022] Figure 5 for Figure 4 Exploded view of the workpiece fixing components;

[0023] Figure 6 for Figure 4 Exploded view of auxiliary support components;

[0024] Figure 7 for Figure 4A schematic diagram of the execution components;

[0025] Figure 8 for Figure 2 Exploded view of the solidification mechanism;

[0026] Figure 9 for Figure 8 Exploded view of the flipping component;

[0027] Figure 10 for Figure 9 Exploded view of the auxiliary positioning component;

[0028] Figure 11 for Figure 8 Exploded view of the transfer components.

[0029] In the diagram: 1. Base shell; 2. Cover shell; 3. Controller; 4. Pre-treatment mechanism; 41. First double-belt conveyor line; 42. Feeding equipment; 43. Dual-axis suction cup handling module; 44. Cleaning equipment; 45. Collection box; 5. Coating mechanism; 51. Workpiece fixing component; 5101. Slot seat; 5102. Moving frame; 5103. First electric telescopic rod; 5104. Rack block; 5105. Groove seat; 5106. Double-end shaft seat; 5107. Half gear; 5108, frame; 5109, fixing module; 52, auxiliary support component; 5201, guide rail base; 5202, moving base; 5203, second electric telescopic rod; 5204, third electric telescopic rod; 5205, clamping module; 53, actuating component; 5301, vertical mounting plate; 5302, slide rail frame; 5303, lifting base; 5304, lead screw linear motor; 5305, fourth electric telescopic rod; 5306, nozzle pipe; 6. Curing mechanism; 61. First conveyor belt; 62. Three-axis moving platform; 63. Curing lamp; 64. Sensor; 65. Turning component; 6501. First fixed base; 6502. Rotating base; 6503. First motor; 6504. Transmission belt assembly; 6505. Horizontal mounting plate; 6507. Conveyor belt assembly; 6508. Transmission gear assembly; 6509. Micro motor; 66. Auxiliary positioning component; 6601. Housing; 6602. Second fixed base 6603. Fixed seat; 6604. Baffle; 6605. Connecting pin; 6606. Slide frame; 6607. Fifth electric telescopic rod; 67. Transfer component; 6708. Second conveyor belt; 6709. Base frame; 67000. Second double belt conveyor line; 67001. Telescopic module; 67002. Third fixed seat; 6703. Suction cup frame; 6704. Second motor; 7. Three-axis suction cup handling module; 8. Hot air blower; 9. Adhesive supply equipment; 10. Air purification equipment. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention addresses industry pain points in existing screen printing steel sheet photosensitive adhesive coating processes, such as poor film curing quality, low double-sided processing efficiency and inconsistent results, and easy damage to workpieces during transport. It employs a step-by-step curing process: initial hot air fixation followed by curing under a curing lamp. This rapidly removes solvent from the film, achieving pre-forming and effectively preventing problems like film dripping, deformation, and peeling after coating. This significantly improves the uniformity of film curing, adhesion to the steel sheet substrate, hardness, and wear resistance. Furthermore, a flip-up workpiece fixing component, combined with double-sided coating and hot air execution components, along with an automatic flipping component in the curing mechanism, enables simultaneous double-sided coating, pre-fixation, and curing of the steel sheet, resulting in a superior coating performance. Breaking away from the limitations of traditional single-sided, step-by-step operations, this device significantly shortens the processing cycle and improves production efficiency, while ensuring high consistency in double-sided adhesive film thickness, processing accuracy, and curing effect. Furthermore, it integrates a pretreatment mechanism, coating mechanism, curing mechanism, and transfer components for fully automated operation. Combined with a three-axis suction cup handling module, it reduces the number of workpiece transfers, lowering the risk of workpiece scratches and contamination. The working chamber formed by the base shell and the sealed yellow light cover shell, along with air purification equipment, ensures a clean working environment, further improving product yield and production stability. This fully meets the demands of large-scale, high-efficiency, and high-precision production of printing screen printing plates.

[0032] Please see Figures 1-11This invention provides a technical solution: a steel sheet photosensitive adhesive coating device for screen printing, comprising: a base shell 1, a cover shell 2, a controller 3, a pretreatment mechanism 4, a coating mechanism 5, a curing mechanism 6, a three-axis suction cup conveying module 7, a hot air blower 8, an adhesive supply device 9, and an air purification device 10. The base shell 1 is made of industrial-grade heavy-duty equipment shell and is integrally welded. The interior of the base shell 1 adopts a partitioned design, with a reserved installation space for a collection box 45 on the left, an embedded installation cavity for the hot air blower 8 on the right, a reserved installation slot for the execution component 53 in the middle, and a reserved installation slot for the bottom. Adjustable shock-absorbing feet allow for fine-tuning of height based on ground flatness, absorbing vibrations during equipment operation and preventing their transmission to the steel workpiece, thus ensuring coating and curing quality. A maintenance door is provided on the side of the outer casing for easy access to internal components. The outer casing 2 is mounted horizontally on the top outer side of the base casing 1, forming a sealed working chamber that effectively isolates external dust and impurities. The outer casing 2 features a yellow-tinted design with an inner wall lined with an UV-protective layer to prevent premature exposure of the photosensitive emulsion by external light, which could affect the accuracy of the screen printing pattern. The outer shell has a transparent observation window made of UV-resistant tempered glass on the front for easy real-time observation by staff. A discharge port is located at the right rear, corresponding to the second double-belt conveyor line 6703 of the transfer component 67, ensuring smooth transport of the cured workpiece to the outside of the equipment. A bracket mounting hole is reserved at the top inside for fixing the three-axis suction cup handling module 7, and a pipe interface is reserved at the top inside for connecting to the conveying pipe of the air purification equipment 10, enabling internal air circulation and purification. The controller 3 is installed on the right front of the outer surface of the outer shell 2. The controller 3 uses an industrial-grade PLC controller with a color touchscreen and is embedded in the shell for close contact. The controller 3 can be pre-programmed with complete automated processing programs, supporting parameter setting, program editing, fault alarm, and operating status display functions. It can precisely control the start, stop, and action sequence of all components, achieving automated operation of the entire coating process. The pretreatment mechanism 4 is located at the top of the base shell 1 and on the left side inside the outer shell 2. The coating mechanism 5 is located at the top of the base shell 1 and in the middle inside the outer shell 2. The curing mechanism 6 is located at the top of the base shell 1 and on the right side inside the outer shell 2.The three-axis suction cup transport module 7 is mounted on the top of the housing 2 via a bracket, and is located above the pretreatment mechanism 4, coating mechanism 5, and curing mechanism 6. The three-axis suction cup transport module 7 is electrically connected to the controller 3. The three-axis suction cup transport module 7 is an industrial-grade precision three-axis linear module, which uses ball screw drive. A vacuum suction cup assembly is installed at the moving end of the module, fixing the steel workpiece through negative pressure adsorption. The adsorption pressure can be adjusted by the controller 3 to ensure that the workpiece is firmly adsorbed without damaging its surface. It can transfer the pretreated workpiece from the first double-belt conveyor line 41 to the coating mechanism 5, and the coated workpiece from the coating mechanism 5 to the first conveyor belt 61 of the curing mechanism 6. The hot air blower 8 is embedded inside the right side of the base housing 1, and is electrically connected to the controller 3. The hot air blower 8 is an embedded industrial hot air blower, suitable for the sealed installation environment inside the base. The hot air blower 8 uses a stainless steel heating tube, and the heating temperature can be preset by the controller 3 to achieve constant temperature hot air output. The blower is a centrifugal blower. The hot air blower 8 can provide heat to the inductor. The initial fixation after photosensitive adhesive coating provides constant-temperature hot air, which is evenly blown onto the workpiece surface through nozzle pipe 5306 to quickly remove solvent from the adhesive film, allowing the photosensitive adhesive to initially cure and preventing the film from peeling off and flowing during subsequent transportation. Simultaneously, the hot air temperature and airflow can be adjusted via controller 3 according to the coating process requirements to adapt to the initial fixation needs of photosensitive adhesives of different thicknesses, ensuring the initial fixation effect and laying the foundation for subsequent curing processes. The adhesive supply device 9 is located on the outer front left side of the base housing 1. The adhesive supply device 9 and the controller... 3. Electrical connection: The adhesive supply equipment 9 uses a precision quantitative adhesive supply machine, which is controlled by the controller 3 to achieve accurate adhesive supply. It is equipped with an adhesive storage tank and a precision metering pump, which can accurately control the adhesive supply speed and amount. The adhesive storage tank is equipped with a stirring device, which can achieve uniform mixing of photosensitive adhesive and modified materials, prevent adhesive sedimentation and stratification, and ensure the uniformity of the coated film. The equipment is connected to the actuator 53 nozzle pipe 5306 inside the housing 2 through a high temperature and corrosion resistant PU pipe, and a pipe interface is reserved for easy maintenance and adhesive replenishment in the future.Air purification device 10 is located at the rear exterior of base housing 1. Adhesive supply device 9 and the inner top of housing 2 are connected via pipes. Air purification device 10 is electrically connected to controller 3. Air purification device 10 uses an industrial-grade air purifier and operates synchronously under the control of controller 3. The device is connected to the inner top of housing 2 via corrosion-resistant pipes, forming a closed air circulation and purification system. This system effectively filters adhesive mist, dust, and fine impurities from the air. Throughout the coating and curing process, it continuously circulates and purifies the air inside housing 2, removing photosensitive adhesive mist generated during coating and preventing mist from adhering to the uncured adhesive film surface, thus avoiding pinholes and defects. Simultaneously, it removes dust and impurities from the air, maintaining a clean environment inside the housing, ensuring the cleanliness of the steel workpiece surface, improving the operating environment of the equipment, protecting the health of workers, and ensuring the stable operation of the coating and curing processes.

[0033] As a preferred option, further, such as Figure 3As shown, the pretreatment mechanism 4 includes: a first double-belt conveyor line 41, a feeding device 42, a dual-axis suction cup handling module 43, a cleaning device 44, and a collection box 45. The first double-belt conveyor line 41 is fixedly installed in the middle of the top left side of the base housing 1 in the left-right direction. The first double-belt conveyor line 41 is electrically connected to the controller 3. The first double-belt conveyor line 41 is an industrial-grade precision double-belt conveyor line. The first double-belt conveyor line 41 adopts a synchronous double-belt design, and the drive motor is a servo motor. The conveying speed is adjusted by the controller 3. It can receive steel sheet workpieces transferred from the dual-axis suction cup handling module 43 and process the workpieces. The workpiece is conveyed at a uniform speed from left to right to the working area of ​​the cleaning device 44. After the workpiece surface is cleaned, it is conveyed to the designated handling station of the three-axis suction cup handling module 7, realizing automated workpiece conveying throughout the process. There are two loading devices 42, which are embedded in the top of the base housing 1 and located at the front and rear ends of the left side of the first double belt conveyor line 41. The loading devices 42 are electrically connected to the controller 3. The loading devices 42 are embedded automatic loading machines, which are controlled by the controller 3 to achieve synchronous and orderly loading. The loading devices 42 adopt a lifting loading structure. The structure includes a built-in programmable lifting platform. The storage chamber can accommodate multiple steel sheet workpieces, adapting to the processing needs of printing screen steel sheets of different sizes. Equipped with photoelectric sensors, it can detect the remaining workpiece amount in the storage chamber in real time. When the workpiece amount is insufficient, it sends a signal to the controller 3, reminding the operator to replenish the workpieces. Then, according to the preset timing sequence of the controller 3, the steel sheet workpieces in the storage chamber are sequentially lifted to the designated suction position of the dual-axis suction cup transport module 43. The dual-axis suction cup transport module 43 is mounted on the top of the base housing 1 along the front-to-back direction via a bracket, and is located between the first dual-belt conveyor line 41 and the loading equipment 42. On the upper right side, the dual-axis suction cup handling module 43 and the controller 3 are electrically connected. The dual-axis suction cup handling module 43 is an industrial-grade precision dual-axis linear handling module, which uses ball screw transmission and a stepper motor for drive. The moving end of the module is equipped with a small vacuum suction cup assembly. The suction pressure can be adjusted by the controller 3. It is also equipped with a vacuum detection sensor to detect the suction status in real time and prevent the workpiece from falling off. It can lift the steel sheet workpiece from the loading device 42 to the designated station. After being suctioned by negative pressure, it is accurately transferred along the XY axis to the conveying surface of the first double belt conveyor line 41 to realize the automated transfer of the workpiece.The cleaning device 44 is installed on the top right side of the first double-belt conveyor line 41. The cleaning device 44 is electrically connected to the controller 3. The cleaning device 44 is an industrial-grade high-pressure air knife cleaning machine, which operates synchronously under the control of the controller 3. The cleaning device 44 adopts a double-sided air knife design and is equipped with a high-pressure blower, which can generate a uniform high-pressure clean airflow. The airflow temperature is the same as the ambient temperature, avoiding high-temperature damage to the workpiece surface. It has a built-in air filter device, which can filter the air entering the air knife to remove dust and impurities from the air, ensuring that the airflow blown onto the workpiece surface is clean. It is also equipped with an angle adjustment mechanism, which can be controlled by the controller. 3. Adjust the air knife's blowing angle to ensure the airflow fully covers the upper and lower surfaces of the workpiece, efficiently removing dust, fine impurities, and trace amounts of oil adhering to the workpiece surface; the collection box 45 is installed inside the base housing 1 on the left side, with its top extending beyond the upper surface of the base housing 1 and connected to the bottom of the cleaning device 44. The collection box 45 is electrically connected to the controller 3. The collection box 45 is an industrial-grade sealed collection box, automatically cleaned under the control of the controller 3. It has a removable filter screen inside to filter dust and impurities blown off by the cleaning device 44, facilitating subsequent sorting and cleaning.

[0034] As a preferred option, further, such as Figure 4 As shown, the coating mechanism 5 includes: a workpiece fixing component 51, an auxiliary support component 52, and an execution component 53; the workpiece fixing component 51 is located at the top of the base housing 1 and to the right of the pretreatment mechanism 4; there are four auxiliary support components 52, which are respectively located at the top of the base housing 1 and at the four outer corners of the workpiece fixing component 51; there are two sets of execution components 53, with two execution components 53 in each set, and the two sets of execution components 53 are respectively embedded in the top of the base housing 1 and located on the left and right sides below the workpiece fixing component 51.

[0035] As a preferred option, further, such as Figure 5As shown, the workpiece fixing component 51 includes: a slot seat 5101, a moving frame 5102, a first electric telescopic rod 5103, a rack block 5104, a groove seat 5105, a double-ended shaft seat 5106, a half gear 5107, a frame 5108, and a fixing module 5109; there are two sets of slot seats 5101, with two slot seats 5101 in each set. The two sets of slot seats 5101 are respectively installed at the front and rear ends of the top of the base housing 1. The slot seats 5101 provide precise left and right guidance for the moving frame 5102, ensuring that the moving frame 5102 moves smoothly in the left and right directions; there are two moving frames 5102, which are respectively inserted into the front and rear sets of slot seats 5101 in the left and right directions. Driven by the first electric telescopic rod 5103, the moving frame 5102 can reciprocate left and right along the inner side of the slot seat 5101, driving the rack block 5104 to move synchronously, thereby transmitting power and providing the basic driving force for the flipping of the frame 5108. There are two first electric telescopic rods 5103. The two first electric telescopic rods 5103 are respectively installed on the outer side of the left slot seat 5101 in the left and right directions of the front and rear sets. The telescopic ends of the two first electric telescopic rods 5103 are fixedly connected to the outer side of the outer surface of the front and rear moving frames 5102, respectively. The first electric telescopic rod 5103 is electrically connected to the controller 3. The first electric telescopic rod 5103 is an industrial-grade precision electric telescopic rod and is precisely controlled by the controller 3.The system employs a DC servo drive and features overload and limit protection. The first electric telescopic rod 5103 provides stable power for the left and right movement of the moving frame 5102, performing reciprocating linear motion according to the preset program of the controller 3. By adjusting the telescopic speed and stroke, the movement amplitude of the moving frame 5102 is controlled, thereby controlling the flip angle of the frame 5108. There are two sets of rack blocks 5104, with two rack blocks in each set, and the two sets of rack blocks 5104 are respectively installed on the upper left and right sides of the inner sides of the front and rear slot seats 5101. There are two sets of groove seats 5105, with two groove seats in each set, and the two sets of groove seats 5105 are respectively installed on the upper left and right sides of the inner sides of the front and rear slot seats 5101. At both ends of the right side, the grooved seats 5105 provide stable mounting support and rotational guidance for the double-ended bearing seats 5106, ensuring that the double-ended bearing seats 5106 can rotate smoothly in the front-back direction. There are two double-ended bearing seats 5106, each mounted on the inner side of the left and right sets of grooved seats 5105 in the front-back direction. The top of the double-ended bearing seats 5106 is used to fix the frame 5108. The double-ended bearing seats 5106 receive the rotational torque transmitted by the half-gears 5107, driving the frame 5108 to rotate smoothly around its own axis. There are two sets of half-gears 5107, with two half-gears in each set. The two sets of half-gears 5107 are fixedly mounted on the outer side of the axis of the left and right double-ended bearing seats 5106, on the front and back sides. At each end, two sets of half gears 5107 are symmetrically arranged and mesh with the lower parts of two sets of rack blocks 5104. The half gears 5107 convert the linear driving force of the rack blocks 5104 into their own rotational torque, thereby driving the double-end bearings 5106 to rotate. Due to its half gear structure, the rotation angle can be precisely controlled to ensure that the frame 5108 stops when it rotates to ±90°, achieving precise control of the workpiece rotation angle and avoiding over- or under-rotation. The frame 5108 is fixedly installed on the top of the two double-end bearings 5106 in the left-right direction. There are two sets of fixing modules 5109, with two modules in each set. The two sets of fixing modules 5109 are fixedly installed on the inner front and rear ends and left and right sides of the frame 5108, respectively. On the side, the fixing module 5109 and the controller 3 are electrically connected. The fixing module 5109 is a pneumatic clamping module, which is precisely controlled by the controller 3. The fixing module 5109 is pneumatically driven and equipped with a precision cylinder. The clamping force can be adjusted by the controller 3. The clamping block is made of soft silicone material, which can avoid damaging the surface of the steel workpiece. It is also equipped with a position sensor, which can detect the clamping status in real time to ensure that the workpiece is firmly clamped. After the workpiece is placed inside the frame 5108, the pneumatic clamping action can clamp the edge of the workpiece from four directions: front, back, left, and right, fixing the workpiece horizontally inside the frame 5108 along the left and right directions. This ensures that the workpiece is fixed in position during the flipping coating process without displacement or shaking, thus ensuring the stability and accuracy of the coating process.

[0036] As a preferred option, further, such as Figure 6 As shown, the auxiliary support component 52 includes: a guide rail base 5201, a movable base 5202, a second electric telescopic rod 5203, a third electric telescopic rod 5204, and a clamping module 5205. The guide rail base 5201 is installed on the top of the base housing 1 in the front-to-back direction and is located outside the two movable frames 5102. The guide rail base 5201 is made of industrial-grade precision linear guide rail, with a precision-polished surface and a low coefficient of friction, which can provide precise front-to-back guidance for the movable base 5202 and ensure that the movable base 5202 moves smoothly in the front-to-back direction. The movable base 5202 is sleeved on the top of the guide rail base 5201. The second electric telescopic rod 5203 is fixedly installed on the top of the guide rail base 5201 in the front-to-back direction. On the side, the telescopic end of the second electric telescopic rod 5203 is fixedly connected to the outer side of the movable seat 5202. The second electric telescopic rod 5203 is electrically connected to the controller 3. The second electric telescopic rod 5203 is an industrial-grade precision electric telescopic rod, which is precisely controlled by the controller 3 and uses DC servo drive. It can provide stable power for the forward and backward movement of the movable seat 5202. According to the preset program of the controller 3, it drives the movable seat 5202 to move along the guide rail seat 5201, and adjusts the distance between the clamping module 5205 and the frame 5108 to ensure that when the frame 5108 is flipped to the vertical position, the clamping module 5205 can move precisely to both sides of the frame 5108 to achieve auxiliary fixation; the third electric telescopic rod 520... 4. The third electric telescopic rod 5204 is fixedly installed on the top of the movable base 5202 along the vertical direction. The third electric telescopic rod 5204 is electrically connected to the controller 3. The third electric telescopic rod 5204 is an industrial-grade precision electric telescopic rod. It is controlled by the controller 3 to realize the lifting and lowering adjustment, which can adjust the height of the clamping module 5205. Through its own telescopic movement, it drives the clamping module 5205 to rise and fall to the height matching the frame 5108, ensuring that the clamping module 5205 can clamp the frame 5108, providing stable auxiliary support for the frame 5108 and the workpiece in the vertical state. The clamping module 5205 is fixedly installed on the top of the telescopic end of the third electric telescopic rod 5204. The clamping module 5205 is electrically connected to the controller 3. Block 5205 uses an industrial-grade precision pneumatic clamping module, which is precisely controlled by controller 3. The clamping module 5205 uses a small precision cylinder, and the clamping force can be adjusted by controller 3. The clamping block is made of soft silicone material, which can avoid damaging the frame 5108 and the surface of the steel workpiece. It is also equipped with a position sensor to detect the clamping status in real time to ensure that the clamping is firm. After the frame 5108 is flipped to a vertical position and the height is adjusted, the front and rear sides of the frame 5108 are clamped by pneumatic clamping action to achieve auxiliary support and fixation of the frame and the workpiece, preventing the workpiece from shaking or shifting during the coating process, ensuring the uniformity of photosensitive emulsion coating. After coating is completed, it is released and reset with the help of auxiliary support component 52.

[0037] As a preferred option, further, such as Figure 7As shown, the actuator 53 includes: a vertical mounting plate 5301, a slide rail frame 5302, a lifting seat 5303, a lead screw linear motor 5304, a fourth electric telescopic rod 5305, and a nozzle pipe 5306; the vertical mounting plate 5301 is fixedly installed in the cavity of the groove opened at the top of the base housing 1 in the vertical direction; there are two slide rail frames 5302, which are fixedly installed at the front and rear ends of the inner wall of the vertical mounting plate 5301 in the vertical direction respectively; the lifting seat 5303 is sleeved on the outside of the front and rear slide rail frames 5302 in the front and rear direction, and the lifting seat 5303 can move up and down along the slide rail frames 5302, driving the fourth electric telescopic rod 5305 and the nozzle pipe 5306 to rise and fall; the lead screw linear motor 5304... The vertical mounting bracket is installed at the bottom of the base housing 1, inside the vertical mounting plate 5301. The extension end of the linear screw motor 5304 is connected to the lower surface of the lifting seat 5303. The linear screw motor 5304 is electrically connected to the controller 3 and is precisely controlled by the controller 3. The motor is servo driven and has a position feedback function, which can feed back the position signal of the lifting seat 5303 to the controller 3 in real time to achieve precise positioning. It can provide stable and precise power for the vertical lifting of the lifting seat 5303. By adjusting the lifting speed and stroke, the height of the nozzle pipe 5306 is controlled to ensure uniform coating of photosensitive emulsion and hot air spraying effect. The fourth electric telescopic rod 5305 is installed along the vertical direction. At the center of the upper surface of the lifting seat 5303, the fourth electric telescopic rod 5305 is electrically connected to the controller 3. The fourth electric telescopic rod 5305 is an industrial-grade precision electric telescopic rod, which is controlled by the controller 3 to reciprocate and extend, thereby driving the nozzle tube 5306 to reciprocate up and down, so that the nozzle tube 5306 can move evenly along the surface of the workpiece, ensuring that the photosensitive adhesive can be evenly sprayed on both sides of the workpiece, or that the hot air can be evenly blown onto the surface of the workpiece. The nozzle tube 5306 is fixedly installed at the top of the telescopic end of the fourth electric telescopic rod 5305 in the front-back direction. The nozzle tubes 5306 in the left and right actuators 53 are respectively connected to the adhesive supply equipment 9 through pipelines, and the nozzle tubes 5306 in the right and left actuators 53 are respectively connected to the hot air blower 8. The nozzle tube 5306 is an industrial-grade precision nozzle tube connected by pipelines. The nozzle tubes 5306 in the two actuators 53 on the left are connected to the adhesive supply equipment 9 through corrosion-resistant PU pipes and are used to spray photosensitive adhesive. The nozzle tubes 5306 in the two actuators 53 on the right are connected to the hot air blower 8 through high-temperature resistant pipes and are used to spray constant-temperature hot air. The left nozzle tube 5306 sprays the photosensitive adhesive supplied by the adhesive supply equipment 9 evenly onto the surface of the steel workpiece through the atomizing nozzle to form a uniform thickness and bubble-free adhesive film. The right nozzle tube 5306 blows the constant-temperature hot air supplied by the hot air blower 8 evenly onto the coated workpiece surface to achieve the initial fixation of the photosensitive adhesive, remove the solvent in the adhesive film, and lay the foundation for the subsequent curing process.

[0038] As a preferred option, further, such as Figure 8As shown, the curing mechanism 6 includes: a first conveyor belt 61, a three-axis moving platform 62, a curing lamp 63, a sensor 64, a flipping component 65, and a transfer component 67. The first conveyor belt 61 is arranged at the top of the base housing 1 in the left-right direction and is located on the right side of the frame 5108. The first conveyor belt 61 is electrically connected to the controller 3. The drive motor of the first conveyor belt 61 is a servo motor, and the conveying speed can be flexibly adjusted by the controller 3 according to the curing efficiency to ensure that the dwell time of the workpiece at the curing station is accurately controllable. The first conveyor belt 61 can receive the coated workpiece transferred from the three-axis suction cup transport module 7 and transport the workpiece from left to right at a uniform speed to the designated curing station. After one side is cured, the workpiece is continued to be transported to the flipping component 65 for flipping. After flipping is completed, The workpiece is then transported back to the curing station for curing on the other side. Finally, the workpiece with double-sided curing is transported to the transfer component 67. The three-axis moving platform 62 is mounted on the top of the base housing 1 via a bracket and is located above and outside the first conveyor belt 61. The three-axis moving platform 62 is electrically connected to the controller 3. The three-axis moving platform 62 is an industrial-grade precision three-axis linear moving platform, which is precisely controlled by the controller 3. It uses ball screw transmission and a servo motor for drive. It has a position feedback function and can feed back the position signal of the curing lamp 63 to the controller 3 in real time. It can drive the curing lamp 63 to move flexibly along the X, Y, and Z axes, adjust the distance between the curing lamp 63 and the surface of the workpiece on the first conveyor belt 61, and drive the curing lamp 63 to move at a constant speed along the surface of the workpiece. The movement ensures that the curing lamp 63 can fully and evenly cover the workpiece surface, avoiding problems such as curing dead spots and insufficient local curing. The curing lamp 63 is installed on the top of the moving end of the three-axis moving platform 62. The curing lamp 63 is electrically connected to the controller 3 and is controlled by the controller 3 to start, stop, and adjust the power. It uses a high-pressure mercury lamp as the light source, which can quickly trigger the photocrosslinking reaction of the photosensitive adhesive. Under the drive of the three-axis moving platform 62, the photosensitive adhesive on the surface of the steel sheet workpiece is quickly cured through photochemical reaction, improving the adhesion, hardness, and wear resistance of the adhesive film. The sensor 64 is installed on the top rear side of the first conveyor belt 61. The sensor 64 is electrically connected to the controller 3. The sensor 64 is an industrial-grade high-precision photoelectric sensor, which is fixed by a bracket and the detection direction is vertically aligned. The conveying surface of the first conveyor belt 61 uses infrared detection to detect the position of the steel sheet workpiece on the first conveyor belt 61 in real time. When the workpiece moves to the designated curing station directly below the three-axis moving platform 62, the sensor 64 immediately sends a position signal to the controller 3. After receiving the signal, the controller 3 controls the first conveyor belt 61 to stop running, ensuring that the workpiece is accurately positioned at the curing station. After the workpiece is cured, the controller 3 controls the first conveyor belt 61 to resume running, and the sensor 64 continues to detect the next workpiece, realizing automated positioning of the workpiece and curing sequence control. The flipping component 65 is set on the top of the base shell 1 and is located to the right of the first conveyor belt 61. The transfer component 67 is set on the top of the base shell 1 and is located to the right of the flipping component 65.

[0039] As a preferred option, further, such as Figure 9As shown, the flipping component 65 includes: a first fixed base 6501, a rotating base 6502, a first motor 6503, a transmission belt assembly 6504, a horizontal mounting plate 6505, a conveyor belt assembly 6507, a transmission gear assembly 6508, a micro motor 6509, and an auxiliary positioning component 66; there are two first fixed bases 6501, which are respectively fixedly installed at the front and rear ends of the outer right side of the first conveyor belt 61; the rotating base 6502 is rotatably installed inside the front and rear first fixed bases 6501 via a rotating shaft; the first motor 6503 is installed on the top of the base housing 1 and is located behind the rear first fixed base 6501. Motor 6503 and controller 3 are electrically connected. Motor 6503 is an industrial-grade precision servo motor, precisely controlled by controller 3. It features overload protection, limit protection, and position feedback, allowing it to transmit the rotation angle signal of rotating seat 6502 to controller 3 in real time for precise positioning. Power is transmitted through transmission belt assembly 6504, driving rotating seat 6502 to rotate 180° clockwise around the axis of first fixed seat 6501, thus flipping the workpiece. One end of transmission belt assembly 6504 is keyed to the rear end of the shaft of rotating seat 6502, while the other end is fixedly mounted on the rotating end of first motor 6503. The driven belt assembly 6504 is an industrial-grade synchronous transmission belt assembly, consisting of a synchronous belt, a drive pulley, and a driven pulley. The drive pulley is fixedly mounted on the rotating end of the first motor 6503, and the driven pulley is connected to the rear end of the shaft of the rotating seat 6502 via a key. The belt and pulley mesh tightly, transmitting the rotational power of the first motor 6503 and converting the motor's rotational motion into the rotational motion of the rotating seat 6502. Two horizontal mounting plates 6505 are used, mounted on the inner front and rear ends of the rotating seat 6502 in the left-right direction, respectively. Two sets of conveyor belt assemblies 6507 are used, with each set containing [number of belts]. There are two conveyor belt assemblies 6507, which are respectively installed on the upper and lower ends of the inner side of the front and rear horizontal mounting plates 6505. The conveyor belt assemblies 6507 are industrial-grade small precision conveyor belt assemblies. The upper and lower two are used as a set to form a workpiece conveying channel, which is suitable for the thickness of steel sheet workpieces. The belt material is PU, and the drive wheel is made of aluminum alloy, which has excellent wear resistance and realizes the smooth conveying of workpieces. When the workpiece is conveyed from the first conveyor belt 61 to the space between the upper and lower belts, the upper and lower belts rotate in opposite directions. Under the action of friction, the workpiece is driven to move to the right along the inner side of the horizontal mounting plate 6505 to the flipping position. After the flipping is completed, the belts rotate in the opposite direction and convey the workpiece back to the first conveyor belt 61 from right to left.There are two transmission gear assemblies 6508, which are respectively mounted on the left side of the outer surface of the front and rear horizontal mounting plates 6505. The upper and lower gear shafts of the two transmission gear assemblies 6508 are fixedly connected to the left pulley shafts of the two sets of conveyor belt assemblies 6507. The transmission gear assemblies 6508 are industrial-grade precision spur gear assemblies. Each transmission gear assembly 6508 consists of two meshing gears. The upper and lower gear shafts are fixedly connected to the left pulley shafts of the two sets of conveyor belt assemblies 6507 by a flat key. It can transmit the power of the micro motor 6509, converting the rotational motion of the micro motor 6509 into the rotational motion of the conveyor belt assembly 6507. At the same time, through the meshing of the upper and lower gears, the upper and lower conveyor belt assemblies 6507 can rotate synchronously in opposite directions. There are two micro motors 6509. The micro motor 6509 is installed on the outside of the two transmission gear assemblies 6508. The rotating end of the micro motor 6509 extends into the interior of the transmission gear assembly 6508 and is fixedly connected to the upper gear shaft of the transmission gear assembly 6508. The micro motor 6509 is electrically connected to the controller 3. The micro motor 6509 is an industrial-grade precision micro servo motor, which is precisely controlled by the controller 3 and has overload protection. It can provide power to the conveyor belt assembly 6507, and drive the upper and lower conveyor belt assemblies 6507 to rotate synchronously in opposite directions through the transmission gear assembly 6508, thereby adjusting the conveying speed and achieving precise conveying of the workpiece. At the same time, it can also be reversed to transport the flipped workpiece back to the first conveyor belt 61, connecting the flipping and secondary curing processes. There are two auxiliary positioning components 66, which are respectively installed on the right side of the outer surface of the front and rear horizontal mounting plates 6505.

[0040] As a preferred option, further, such as Figure 10As shown, the auxiliary positioning component 66 includes: a housing 6601, a second fixed base 6602, a stop 6603, a connecting pin 6604, a slide rail 6605, and a fifth electric telescopic rod 6606; the housing 6601 is fixedly installed on the right side of the outer surface of the horizontal mounting plate 6505; the base frame 6702 is fixedly installed on the right side of the outer surface of the housing 6601; the stop 6603 is rotatably installed on the inner side of the second fixed base 6602 via a rotating shaft, and the inner side of the stop 6603 is in contact with a soft silicone pad to avoid scratching the surface of the workpiece when blocking it. When the workpiece is conveyed to the flipping position, it can rotate inward to fit the right edge of the workpiece to achieve blocking and positioning of the workpiece, preventing the workpiece from continuing to move to the right. At the same time, it lifts the workpiece during the flipping process to prevent it from slipping. After the flipping is completed, it rotates outward to reset without affecting the conveying of the workpiece; the connecting pin 6604 is installed on the inner side of the stop 6603, and the connecting pin 6604 can hold the slide rail 6605... The linear motion is converted into the rotational motion of the stop 6603, enabling the stop 6603 to rotate flexibly and ensuring that the stop 6603 can be accurately positioned and reset. The slide frame 6605 is inserted into the inner side of the stop 6603. The slide frame 6605 is L-shaped, and the inner cavity of the slide frame 6605 is sleeved on the outside of the connecting pin 6604. The fifth electric telescopic rod 6606 is installed on the left side of the outer surface of the outer shell 6601. The telescopic end of the fifth electric telescopic rod 6606 extends into the interior of the outer shell 6601 and is fixedly connected to the slide frame 6605. The fifth electric telescopic rod 6606 is electrically connected to the controller 3. The fifth electric telescopic rod 6606 is an industrial-grade precision micro electric telescopic rod. It is precisely controlled by the controller 3 and can provide power for the left and right movement of the slide frame 6605. Through the telescopic action, the slide frame 6605 is driven to move, thereby driving the stop 6603 to rotate, realizing the positioning and lifting when the workpiece is flipped.

[0041] As a preferred option, further, such as Figure 11As shown, the transfer component 67 includes: a second conveyor belt 6701, a base frame 6702, a second double-belt conveyor line 6703, a telescopic module 6704, a third fixed seat 6705, a suction cup frame 6706, and a second motor 6707. The second conveyor belt 6701 is fixedly installed on the top of the base housing 1 in the left-right direction and is located on the outer right side of the two front and rear horizontal mounting plates 6505. The second conveyor belt 6701 is electrically connected to the controller 3 and is controlled by the controller 3. The drive motor is a servo motor, and the conveying speed can be adjusted by the controller 3 to adapt to the transfer efficiency requirements. It can receive double-sided cured workpieces conveyed by the flipping component 65 and transfer the workpieces to the control unit. The workpiece is uniformly conveyed from left to right to the designated adsorption station of the suction cup frame 6706; the base frame 6702 is installed at the right rear outlet of the outer shell 2 along the front-back direction, and is located outside and behind the second conveyor belt 6701; the second double belt conveyor line 6703 is installed on the top of the base frame 6702, and is located outside and behind the first fixed seat 6501 on the rear side. The second double belt conveyor line 6703 is U-shaped and electrically connected to the controller 3. The second double belt conveyor line 6703 is an industrial-grade U-shaped double belt conveyor line, which is controlled by the controller 3. The drive motor is a stepper motor, which can receive the cured workpiece transferred from the suction cup frame 6706 and move the workpiece towards... The material is conveyed at a constant speed from the rear, passing through the right rear outlet of the outer shell 2, and transported to the receiving area outside the equipment. The telescopic module 6704 is fixedly installed on the rear side of the outer surface of the second conveyor belt 6701 by a bracket and is located in front of the base frame 6702. The telescopic module 6704 is electrically connected to the controller 3. The telescopic module 6704 is an industrial-grade precision telescopic module, which is precisely controlled by the controller 3. It adopts servo drive and has a position feedback function, which can feed back the telescopic position signal to the controller 3 in real time. The telescopic movement drives the suction cup frame 6706 to rise and fall, ensuring that the suction cup frame 6706 can accurately adhere to the surface of the workpiece on the second conveyor belt 6701, realizing the precise adsorption of the workpiece, and adapting to... The height of the second double-belt conveyor 6703 ensures stable placement of the workpiece; the third fixed base 6705 is fixedly installed on the top of the telescopic end of the telescopic module 6704 in the left-right direction; the suction cup frame 6706 is rotatably installed on the inner side of the third fixed base 6705 via a rotating shaft. The suction cup frame 6706 is T-shaped and electrically connected to the controller 3. The suction cup frame 6706 is rotatably installed on the inner side of the third fixed base 6705 via a high-precision rotating shaft, which can rotate counterclockwise and clockwise around the shaft. A vacuum suction cup is installed at the bottom of the suction cup frame 6706, which fixes the workpiece through the principle of negative pressure adsorption. The adsorption pressure can be adjusted by the controller 3, and the adsorption and release actions are controlled by the controller 3.The second motor 6707 is fixedly mounted on the left side of the outer surface of the third fixed base 6705. The rotating end of the second motor 6707 extends into the inner side of the third fixed base 6705 and is fixedly connected to the axis of the suction cup frame 6706. The second motor 6707 is electrically connected to the controller 3. The second motor 6707 is an industrial-grade precision servo motor, precisely controlled by the controller 3, and has limit protection and position feedback functions. It can feed back the rotation angle signal of the suction cup frame 6706 to the controller 3 in real time, driving the suction cup frame 6706 to rotate counterclockwise around the axis of the third fixed base 6705, causing the adsorbed workpiece to rotate synchronously, so that the workpiece is stably placed on the second double-belt conveyor line 6703.

[0042] The specific work steps are as follows:

[0043] Step 1: Preliminary preparation and workpiece pretreatment. The staff needs to complete the preliminary preparation work, neatly stack the stainless steel sheet workpieces required for printing screen processing into the feeding chambers of the front and rear feeding equipment 42, and at the same time supply the photosensitive adhesive and modified auxiliary materials with precise filling ratio into the adhesive supply equipment 9 to ensure that the adhesive meets the coating process requirements.

[0044] Step 2: The operator starts the equipment through the operation panel of the controller 3. The controller 3 calls the internal preset automated processing program and simultaneously activates the feeding equipment 42, the dual-axis suction cup handling module 43, the first dual-belt conveyor line 41 and the cleaning equipment 44. The two feeding equipment 42, according to the preset sequence, lift the steel sheet workpiece in the cavity to the designated adsorption position of the dual-axis suction cup handling module 43 through the internal lifting mechanism. After receiving the signal from the controller 3, the dual-axis suction cup handling module 43 drives the suction cup to descend and adhere to the surface of the workpiece. The workpiece is fixed by adsorption through negative pressure. Then, it moves along the front-back and left-right dual-axis directions to transfer the workpiece to the conveying surface of the first dual-belt conveyor line 41.

[0045] Step 3: The first dual-belt conveyor 41 drives the workpiece to be transported from left to right and sent into the working area of ​​the cleaning equipment 44. After the cleaning equipment 44 is started, it sprays clean airflow onto the upper and lower surfaces of the workpiece through high-pressure nozzles to efficiently remove dust, fine impurities and trace amounts of oil adhering to the workpiece surface, so as to avoid such impurities affecting the adhesion of the subsequent photosensitive emulsion coating. The dust and impurities generated during cleaning fall into the collection box 45 through the guide channel below, so as to achieve centralized collection and facilitate subsequent cleaning. After the pretreatment is completed, the first dual-belt conveyor 41 continues to drive the workpiece to move to the right until it is transported to the designated handling station of the three-axis suction cup handling module 7, waiting to enter the next process.

[0046] Step 4: Controller 3 continues to run the preset program, synchronously starting the three-axis suction cup transport module 7, workpiece fixing component 51, auxiliary support component 52, execution component 53, hot air blower 8, and air purification equipment 10. The three-axis suction cup transport module 7 moves above the workpiece on the first double-belt conveyor line 41. After the workpiece is adsorbed by the negative pressure suction cup, it is transferred to the working area of ​​the workpiece fixing component 51. The workpiece is placed between the front and rear fixing modules 5109. The front and rear fixing modules 5109 clamp the edge of the workpiece, ensuring that the workpiece is fixed horizontally inside the frame 5108 in the left and right directions. After fixing, the first electric telescopic rod 51... 03. The reciprocating linear motion is performed according to the preset route. Its telescopic end drives the rigidly connected movable frame 5102 to move smoothly left and right in a straight line along the guide rail of the slot seat 5101. When the movable frame 5102 moves, the rack block 5104 on its inner side and the half gear 5107 achieve precise meshing transmission, converting the linear driving force of the rack block 5104 into the rotational torque of the half gear 5107. This torque is transmitted to the frame 5108 through the double-end bearing 5106, thereby driving the frame 5108 to rotate around the axis of the double-end bearing 5106, alternately completing the ±90° flipping action, realizing the switching of the workpiece coating and curing position.

[0047] Step 5: When the frame 5108, with the cooperation of the fixing module 5109, drives the steel sheet workpiece to flip to a vertically downward state, the auxiliary support components 52 at the corresponding positions on the front and rear sides are activated simultaneously. The second electric telescopic rod 5203 extends, driving the moving seat 5202 to move inward along the guide direction of the guide rail seat 5201, driving the third electric telescopic rod 5204 and the clamping module 5205 to approach the frame 5108. Subsequently, the third electric telescopic rod 5204 drives the clamping module 5205 to rise and fall to a height matching the frame 5108 through telescopic action. The clamping module 5205 clamps the front and rear sides of the frame 5108, realizing auxiliary support and fixation of the frame 5108 and the workpiece in the vertical state.

[0048] Step 6: The actuators 53 on both sides of the current position are activated. The internal linear motor 5304 drives the lifting seat 5303 to move upward along the slide rail 5302, raising the fourth electric telescopic rod 5305 and the nozzle tube 5306 from the internal groove of the base housing 1 until the nozzle tube 5306 is aligned with the left and right surfaces of the workpiece. The fourth electric telescopic rod 5305 performs a reciprocating up-and-down telescopic motion, driving the nozzle tube 5306 to move evenly along the surface of the workpiece. The adhesive supply device 9 delivers the prepared photosensitive adhesive to the nozzle tube 5306 through the delivery pipeline. The nozzle tube 5306 sprays the adhesive evenly onto both sides of the workpiece through the atomizing nozzle. After the photosensitive adhesive on one side of the workpiece is coated, the auxiliary support component 52 and the actuator 53 at the current position... The structure is reset, the first electric telescopic rod 5103 moves in the opposite direction, and the drive frame 5108 continues to flip to the other side 90° position to complete the workpiece flipping and switching. The two auxiliary support components 52 on the other side repeat the above support and fixing action. The two left and right execution components 53 on the other side are started, the hot air blower 8 is started, and constant temperature hot air is delivered to the nozzle pipe 5306 on this side. The hot air is blown evenly onto the surface of the workpiece through the nozzle pipe 5306 to achieve the initial fixation after the photosensitive adhesive is coated and to remove some of the solvent in the adhesive film. During the entire coating process, the air purification equipment 10 runs continuously, extracting the air inside the outer shell 2 of the cover through the pipe, filtering and removing adhesive mist and impurities in the air, maintaining a clean environment inside the equipment, and preventing impurities from adhering to the surface of the uncured adhesive film.

[0049] Step 7: After coating and initial fixing are completed, the three-axis suction cup transport module 7 is started again to pick up the coated workpiece and transfer it to the surface of the first conveyor belt 61 of the curing mechanism 6. The controller 3 simultaneously starts the first conveyor belt 61, sensor 64, three-axis moving platform 62, curing lamp 63, flipping component 65 and transfer component 67. The first conveyor belt 61 drives the workpiece to move from left to right at a constant speed. When the sensor 64 senses that the workpiece has moved directly under the three-axis moving platform 62, it immediately sends a position signal to the controller 3. The controller 3 controls the first conveyor belt 61 to stop running. Then the three-axis moving platform 62 drives the curing lamp 63 to move along the X, Y and Z axes, so that the curing lamp 63 always maintains a preset distance from the workpiece surface and moves at a uniform speed along the workpiece surface. The curing lamp 63 irradiates and cures the photosensitive adhesive on the workpiece surface, accelerates the photocrosslinking reaction of the adhesive film, and improves the bonding force between the adhesive film and the steel sheet.

[0050] Step 8: After one side of the workpiece has cured, the controller 3 controls the first conveyor belt 61 to resume operation, continuing to transport the workpiece to the right to the working area of ​​the flipping component 65, so that the workpiece enters between the upper and lower conveyor belt assemblies 6507 on both sides. The micro motor 6509 starts, driving the gears in the transmission gear assembly 6508 to mesh and rotate, thereby driving the pulleys of the upper and lower conveyor belt assemblies 6507 to rotate in opposite directions. This causes the belt of the upper conveyor belt assembly 6507 to rotate counterclockwise and the belt of the lower conveyor belt assembly 6507 to rotate clockwise. Due to the friction of the belts... Under the action of force, the workpiece is driven to move to the right along the inner side of the two horizontal mounting plates 6505. When the workpiece moves to the designated flipping position, the auxiliary positioning components 66 on the front and rear sides are activated simultaneously, the fifth electric telescopic rod 6606 extends, and drives the L-shaped slide frame 6605 to move to the right. The slide of the slide frame 6605 drives the stop 6603 to rotate inward around the second fixed seat 6602 through the connecting pin 6604 until the stop 6603 fits against the right edge of the workpiece, thereby blocking and positioning the workpiece, and at the same time providing support for subsequent flipping to prevent the workpiece from slipping during flipping.

[0051] Step 9: The first motor 6503 starts, and through the transmission belt assembly 6504, drives the rotating seat 6502 to rotate 180° clockwise around the axis of the two first fixed seats 6501. This causes the workpiece inside the horizontal mounting plate 6505 and the conveyor belt assembly 6507 to complete the overall flipping, ensuring that the uncured side of the workpiece faces upward. After the flipping is completed, the fifth electric telescopic rod 6606 shortens, drives the internal structure of the auxiliary positioning component 66 to reset, and the baffle 6603 returns to its initial position. The micro motor 6509 rotates in the opposite direction, and through the transmission gear assembly 6508, drives the upper and lower conveyor belt assemblies 6507 to move in the opposite direction, conveying the workpiece from right to left back to the surface of the first conveyor belt 61. The first conveyor belt 61 and the sensor 64 cooperate again to reposition the workpiece below the three-axis moving platform 62. The three-axis moving platform 62 drives the curing lamp 63 to irradiate and cure the photosensitive adhesive on the other side of the workpiece again, ensuring that the photosensitive adhesive on both sides of the workpiece is completely cured and meets the requirements for subsequent use.

[0052] Step 10: After the workpiece is cured on both sides, the first conveyor belt 61 transports it to the right to the inside of the conveyor belt assembly 6507 of the flipping component 65. The micro motor 6509, in cooperation with the transmission gear assembly 6508, drives the conveyor belt assembly 6507 to transport the workpiece to the surface of the second conveyor belt 6701. The second conveyor belt 6701 drives the workpiece to move horizontally to the right until it reaches the working area of ​​the transfer component 67. At this time, the telescopic module 6704 is activated, driving the third fixed seat 6705 to rise and fall to a height matching the workpiece through telescopic movement, thus relieving the pressure inside the suction cup frame 6706. The suction cup adheres to the surface of the workpiece and adheres it in place. The second motor 6707 starts and drives the suction cup frame 6706 to rotate counterclockwise around the axis of the third fixed seat 6705, so that the suction cup frame 6706 passes through the inner side of the U-shaped second double belt conveyor line 6703. At the same time, the workpiece is placed on the conveying surface of the second double belt conveyor line 6703. The second double belt conveyor line 6703 starts and conveys the workpiece with the surface cured to the rear, through the right rear discharge port of the outer shell 2, and to the receiving area outside the equipment, waiting for subsequent cutting, inspection and other processing steps. The entire automated coating process is completed.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for coating steel sheet photosensitive emulsion in screen printing, characterized in that, include: Base shell (1); The outer shell (2) is installed on the outer top of the base shell (1) in the left-right direction; The controller (3) is installed on the right front of the outer surface of the outer shell (2); The pretreatment mechanism (4) is located at the top of the base housing (1) and on the left side inside the cover housing (2); The coating mechanism (5) is located at the top of the base housing (1) and in the middle of the interior of the cover housing (2); The curing mechanism (6) is located at the top of the base housing (1) and on the right side inside the cover housing (2); The three-axis suction cup transport module (7) is mounted on the top of the housing (2) via a bracket and is located above the pretreatment mechanism (4), coating mechanism (5) and curing mechanism (6). The three-axis suction cup transport module (7) and the controller (3) are electrically connected. A hot air blower (8) is embedded in the inside right side of the base housing (1), and the hot air blower (8) and the controller (3) are electrically connected; The adhesive supply device (9) is located on the outer front left side of the base housing (1), and the adhesive supply device (9) and the controller (3) are electrically connected. An air purification device (10) is located on the outside rear of the base housing (1). The adhesive supply device (9) and the inner top of the cover housing (2) are connected by a pipe. The air purification device (10) and the controller (3) are electrically connected.

2. The steel sheet photosensitive emulsion coating device for printing screen processing according to claim 1, characterized in that, The coating mechanism (5) includes: The workpiece fixing component (51) is disposed at the top of the base housing (1) and located to the right of the pretreatment mechanism (4); Auxiliary support components (52), the number of auxiliary support components (52) is four, the four auxiliary support components (52) are respectively set at the top of the base shell (1) and located at the four outer corners of the workpiece fixing component (51); The execution components (53) are in two groups, with two execution components (53) in each group. The two groups of execution components (53) are respectively embedded in the top of the base shell (1) and located on the left and right sides below the workpiece fixing component (51).

3. The steel sheet photosensitive emulsion coating device for printing screen processing according to claim 2, characterized in that, The workpiece fixing component (51) includes: The number of slot seats (5101) is two sets, and the number of slot seats (5101) in each set is two. The two sets of slot seats (5101) are respectively installed on the front and rear ends of the top of the base shell (1). The movable frame (5102) is two in number, and the two movable frames (5102) are respectively inserted into the front and rear sets of slot seats (5101) in the left and right directions; The first electric telescopic rod (5103) has two components. The two first electric telescopic rods (5103) are respectively installed on the outer side of the left slot seat (5101) in the front and rear groups along the left and right directions. The telescopic ends of the two first electric telescopic rods (5103) are respectively fixedly connected to the outer side of the outer surface of the front and rear moving frames (5102). The first electric telescopic rod (5103) and the controller (3) are electrically connected. The rack block (5104) is in two sets, with two rack blocks (5104) in each set. The two sets of rack blocks (5104) are respectively installed on the upper left and right sides of the inner side of the front and rear slot seats (5101).

4. The steel sheet photosensitive emulsion coating device for printing screen processing according to claim 3, characterized in that, The workpiece fixing component (51) further includes: The groove seat (5105) is in two sets, with two groove seats (5105) in each set. The two sets of groove seats (5105) are respectively installed on the inner left and right ends and front and rear sides of the front and rear two sets of slot seats (5101). Two double-ended bearings (5106) are provided, and the two double-ended bearings (5106) are respectively rotatably installed on the inner side of the left and right sets of groove seats (5105) in the front-back direction. Half gear (5107), the number of half gears (5107) is two sets, the number of half gears (5107) in each set is two, the two sets of half gears (5107) are respectively fixedly installed on the front and rear ends of the outer shaft of the left and right double-end bearings (5106), the two sets of half gears (5107) are symmetrically arranged on the left and right, and respectively mesh with the lower part of the two sets of rack blocks (5104); The frame (5108) is fixedly mounted on the top of two double-ended bearings (5106) in the left-right direction; The fixed module (5109) is divided into two groups, with two fixed modules (5109) in each group. The two groups of fixed modules (5109) are respectively fixedly installed on the inner front and rear ends and left and right sides of the frame (5108). The fixed module (5109) is electrically connected to the controller (3).

5. The steel sheet photosensitive emulsion coating device for printing screen processing according to claim 4, characterized in that, The execution component (53) includes: A vertical mounting plate (5301) is fixedly installed in the inner cavity of the groove opened at the top of the base housing (1) in the vertical direction; The slide rail bracket (5302) is two in number, and the two slide rail brackets (5302) are respectively fixedly installed at the front and rear ends of the inner wall of the vertical mounting plate (5301) in the vertical direction. The lifting seat (5303) is sleeved on the outside of the front and rear slide rails (5302) in the front-back direction; The lead screw linear motor (5304) is mounted on the bottom of the base housing (1) in the vertical direction via a bracket and is located below the inner side of the vertical mounting plate (5301). The telescopic end of the lead screw linear motor (5304) is connected to the lower surface of the lifting seat (5303). The lead screw linear motor (5304) and the controller (3) are electrically connected. The fourth electric telescopic rod (5305) is installed in the middle of the upper surface of the lifting seat (5303) in the vertical direction, and the fourth electric telescopic rod (5305) is electrically connected to the controller (3); The nozzle pipe (5306) is fixedly installed at the top of the telescopic end of the fourth electric telescopic rod (5305) in the front-back direction.

6. The steel sheet photosensitive emulsion coating device for printing screen processing according to claim 5, characterized in that, The nozzle pipes (5306) in the two left-side actuators (53) are connected to the adhesive supply device (9) through pipelines, and the nozzle pipes (5306) in the two right-side actuators (53) are connected to the hot air blower (8) through pipelines.

7. The apparatus for coating photosensitive emulsion on a steel sheet for printing screen processing according to claim 6, characterized in that, The curing mechanism (6) includes: The first conveyor belt (61) is arranged at the top of the base housing (1) in the left-right direction and is located on the right side of the frame (5108). The first conveyor belt (61) and the controller (3) are electrically connected. The three-axis moving platform (62) is mounted on the top of the base housing (1) by a bracket and is located above the outside of the first conveyor belt (61). The three-axis moving platform (62) and the controller (3) are electrically connected. A curing lamp (63) is installed on the top of the moving end of the three-axis moving platform (62), and the curing lamp (63) is electrically connected to the controller (3); A sensor (64) is installed on the top rear side of the first conveyor belt (61), and the sensor (64) is electrically connected to the controller (3); The flipping component (65) is disposed on the top of the base housing (1) and located on the right side of the first conveyor belt (61); The transfer component (67) is located on the top of the base housing (1) and to the right of the flipping component (65).

8. The apparatus for coating photosensitive emulsion on a steel sheet for printing screen processing according to claim 7, characterized in that, The flipping component (65) includes: The first fixed seat (6501) has two units, and the two first fixed seats (6501) are respectively fixedly installed on the front and rear ends of the outer right side of the first conveyor belt (61); The rotating seat (6502) is rotatably mounted on the inner side of the two first fixed seats (6501) at the front and rear via a rotating shaft; The first motor (6503) is mounted on the top of the base housing (1) and located outside the rear of the rear first fixing seat (6501). The first motor (6503) and the controller (3) are electrically connected. The transmission belt assembly (6504) has a pulley at one end that is keyed to the rear end of the shaft of the rotating seat (6502), and the pulley at the other end of the transmission belt assembly (6504) is fixedly installed on the rotating end of the first motor (6503). The horizontal mounting plate (6505) is two in number, and the two horizontal mounting plates (6505) are respectively installed at the front and rear ends of the inner side of the rotating seat (6502) in the left and right direction; The conveyor belt assembly (6507) is divided into two groups, with each group consisting of two conveyor belt assemblies (6507). The two groups of conveyor belt assemblies (6507) are respectively installed on the upper and lower ends of the inner side of the front and rear horizontal mounting plates (6505). The transmission gear assembly (6508) consists of two gears, which are respectively installed on the left side of the outer surface of the front and rear horizontal mounting plates (6505). The upper and lower gear shafts of the two transmission gear assemblies (6508) are respectively fixedly connected to the left pulley shafts of the two sets of conveyor belt assemblies (6507). Two micro motors (6509) are installed on the outside of two transmission gear assemblies (6508). The rotating end of the micro motor (6509) extends into the interior of the transmission gear assembly (6508) and is fixedly connected to the upper gear shaft of the transmission gear assembly (6508). The micro motor (6509) is electrically connected to the controller (3). The auxiliary positioning component (66) is two in number, and the two auxiliary positioning components (66) are respectively installed on the right side of the outer surface of the front and rear horizontal mounting plates (6505).

9. The apparatus for coating steel sheet photosensitive emulsion in printing screen processing according to claim 8, characterized in that, The transfer component (67) includes: The second conveyor belt (6701) is fixedly installed on the top of the base housing (1) in the left-right direction and is located on the outside right side of the two front and rear horizontal mounting plates (6505). The second conveyor belt (6701) and the controller (3) are electrically connected. The base frame (6702) is installed in the front-rear direction at the right rear outlet of the cover shell (2) and is located outside the rear of the second conveyor belt (6701); The second double belt conveyor (6703) is installed on the top of the base frame (6702) and located outside the rear of the first fixed seat (6501). The second double belt conveyor (6703) is U-shaped and is electrically connected to the controller (3). The telescopic module (6704) is fixedly installed on the rear side of the outer surface of the second conveyor belt (6701) by a bracket and is located in front of the base frame (6702). The telescopic module (6704) is electrically connected to the controller (3). The third fixing seat (6705) is fixedly installed on the top of the telescopic end of the telescopic module (6704) in the left-right direction; The suction cup holder (6706) is rotatably mounted on the inner side of the third fixed seat (6705) via a rotating shaft. The suction cup holder (6706) is T-shaped and is electrically connected to the controller (3). The second motor (6707) is fixedly installed on the left side of the outer surface of the third fixed base (6705). The rotating end of the second motor (6707) extends into the inner side of the third fixed base (6705) and is fixedly connected to the shaft of the suction cup frame (6706). The second motor (6707) and the controller (3) are electrically connected.

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