A marking and coating equipment for electronic components

Abstract

This invention relates to the field of electronic component manufacturing technology, and in particular to a marking and coating equipment for electronic components. The equipment includes a marking and coating machine, a marking and coating component disposed inside the marking and coating machine, and a spray gun disposed inside the marking and coating machine. The outer surface of the spray gun is provided with a hot air purification and curing component, and a trigger support component disposed on the outer surface of the spray gun. The trigger support component includes a support component disposed on the surface of the spray gun. Through the cooperation of the hot air guide component and the air distribution component inside the hot air purification and curing component, the hot air can be stabilized and uniformly transported, simultaneously preheating and removing impurities from the surface of the electronic components. This effectively removes moisture and mold release agent impurities from the substrate surface, improves ink adhesion, and avoids the problems of uneven heating or incomplete cleaning caused by direct-blowing hot air in existing systems.

Description

Technical Field

[0001] This invention relates to the field of electronic component manufacturing technology, and in particular to a marking and coating equipment for electronic components. Background Technology

[0002] Electronic component marking and coating equipment is a high-end automated intelligent manufacturing equipment designed to provide high-quality surface marking for miniature precision electronic components. As electronic components develop towards miniaturization and high integration, the clarity and durability of product traceability, anti-counterfeiting, and compliance markings are crucial. Therefore, electronic component marking and coating equipment is needed to precisely mark electronic components, facilitating quality control throughout the entire lifecycle, automated barcode scanning and traceability, and batch management.

[0003] In existing technology, a linear drive unit moves the chassis within a guide rail, moving it below the marking and spraying component. The linear drive unit is then deactivated to stop the chassis. Next, the upper linear drive unit moves the marking and spraying component laterally, aligning it with the target spraying position. Subsequently, a hydraulic rod moves the marking and spraying component downwards to the designated marking and spraying position. The spray gun is then immediately activated to mark and spray the electronic component's surface. After spraying, the hydraulic rod lifts the marking and spraying component back up. Finally, the chassis continues to slide, transporting the sprayed electronic component to the thermosetting process for further processing.

[0004] In practical applications, existing technologies often result in issues where the ink used for marking electronic components has not yet cured to form a wet film. During the conveyor belt transport process, airflow carries dust or suspended ink droplets that adhere to the undried marking surface, causing dirt and blemishes. This can easily lead to incomplete or blurred characters, directly reducing the clarity of the markings and the pass rate of QR code scanning, thus affecting the product's appearance quality and the reliability of batch traceability for components. Therefore, to address the aforementioned technical problems, it is necessary to provide a marking and spraying equipment for electronic components. Summary of the Invention

[0005] In view of the problem in the above or existing technologies that uncured markings after spraying are easily contaminated by dust or suspended droplets carried by airflow, affecting the appearance quality of the product, this invention is proposed.

[0006] Therefore, the object of the present invention is to provide a marking and coating device for electronic components.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] As a preferred embodiment of the marking and coating equipment for electronic components of the present invention, wherein:

[0009] Including marking sprayers, and;

[0010] A marking spraying component is disposed inside the marking spraying machine. The marking spraying component includes a spray gun disposed inside the marking spraying machine. A hot air purification and curing assembly is disposed on the outer surface of the spray gun. The hot air purification and curing assembly includes a hot air guide component disposed on the surface of the spray gun.

[0011] The hot air guide component includes a heat insulation block disposed on the surface of the spray gun, a hot air chamber disposed on the surface of the heat insulation block, and an air distribution chamber disposed at the bottom of the hot air chamber; wherein...

[0012] A trigger support assembly disposed on the outer surface of the spray gun, the trigger support assembly including a support member disposed on the surface of the spray gun; and,

[0013] The support component includes a support plate disposed on the outer surface of the spray gun, a corrugated pipe disposed at the bottom of the support plate, and a support rod disposed at the end of the trigger plate.

[0014] As a preferred embodiment of the panel bonding device for display screen production of the present invention, wherein: the marking spraying machine is provided with a linear drive component inside, the linear drive component includes a guide rail disposed inside the marking spraying machine, a guide block disposed inside the guide rail, a moving block disposed on the outer surface of the guide block, a hydraulic rod disposed at the bottom of the moving block, the end of the hydraulic rod being connected to the marking spraying component, a linear conveyor component disposed on the upper surface of the marking spraying machine, and a plurality of chassis disposed on the outer surface of the linear conveyor component.

[0015] In a preferred embodiment of the panel bonding device for display screen production of the present invention, the hot air chamber and the air distribution chamber are provided with airflow blocking components, the airflow blocking components include electromagnets, the hot air chamber is provided with electromagnets, the hot air chamber is provided with blocking rods, the end of the blocking rods is provided with sealing plugs, and the outer surface of the sealing plugs is provided with sealing sleeves.

[0016] As a preferred embodiment of the panel bonding device for display screen production of the present invention, the hot air guide component further includes a hot air blower, the outer surface of the marking spraying machine is provided with a hot air blower, the outer surface of the hot air blower is provided with a hot air pipe, the end of the hot air pipe is connected to the interior of the hot air chamber, and the outer surface of the hot air chamber is provided with a heat insulation sleeve.

[0017] As a preferred embodiment of the panel bonding device for display screen production of the present invention, wherein: an air distribution plate is provided inside the hot air pipe near the hot air chamber, a plurality of nozzles are provided at the bottom of the air distribution chamber, and a hot air outlet is provided between the air distribution chamber and the hot air chamber.

[0018] As a preferred embodiment of the panel bonding device for display screen production of the present invention, the airflow blocking component further includes a limiting frame, the bottom of the hot air outlet is equipped with a limiting frame, the end of the blocking rod is provided with a touch plate, the inside of the touch plate is provided with a magnetic block, and the outer surface of the blocking rod is provided with a corrugated spring.

[0019] In a preferred embodiment of the panel bonding device for display screen production of the present invention, the support member further includes a reset spring, the bellows has a reset spring inside, and the bottom of the support rod has a trigger.

[0020] As a preferred embodiment of the panel bonding device for display screen production of the present invention, the triggering element includes a trigger chamber, the end of the support rod is provided with a trigger chamber, the inner cavity of the trigger chamber is provided with a micro switch, the inside of the trigger chamber is provided with a sliding groove, the inside of the sliding groove is provided with a sliding rod, the end of the sliding rod is provided with a contact ball, and the outer surface of the contact ball is provided with an antistatic soft rubber cap.

[0021] In a preferred embodiment of the panel bonding device for display screen production of the present invention, a trigger plate is provided at the end of the sliding rod, a trigger rod is provided on the upper surface of the trigger plate, and a support spring is provided on the outer surface of the trigger rod.

[0022] As a preferred embodiment of the panel bonding device for display screen production of the present invention, wherein: the air distribution chamber is provided with an air distribution component, including a support wire, the air distribution chamber is provided with a support wire, the end of the support wire is provided with a conical diverter cap, the air distribution chamber is provided with a spiral air distribution plate, and the spiral air distribution plate is provided with spiral air distribution holes.

[0023] The beneficial effects of the electronic component marking and coating equipment of the present invention are as follows: The present invention, through the cooperation of the hot air guide and air distribution components inside the hot air purification and curing components, can stabilize and uniformly deliver hot air, and simultaneously preheat and remove impurities from the surface of electronic components, so as to effectively remove moisture and mold release agent impurities from the substrate surface, improve the adhesion of ink, and avoid the problems of uneven heating or incomplete cleaning caused by the use of direct hot air in the present invention. It fundamentally avoids the risk of marking peeling off and greatly improves the bonding strength between ink and substrate.

[0024] This invention, through an airflow blocking component, enables the instantaneous cutting off of hot air before spraying and the sequential operation of hot air for pre-curing after spraying. This completely isolates airflow disturbances during the critical window period of the spraying operation, thereby eliminating defects such as incomplete markings and blurred surfaces caused by direct hot air blowing from the source of the process. This significantly improves the clarity and yield of electronic component markings and ensures the integrity and stability of batch traceability information.

[0025] This invention utilizes the coordinated action of the internal support components and trigger components of the trigger support assembly, along with the coordinated action of the rear-positioned staggered contact balls, to ensure that the hot air vents of electronic components close when the spray gun approaches and open when it moves away. This guarantees a stable spraying process, significantly improves the spraying accuracy and mass production adaptability of the equipment, and provides auxiliary support for electronic components during the spraying process through the contact balls and anti-static soft rubber caps. The staggered layout completely avoids the wet film area, preventing damage to markings caused by contact scratches, and further ensuring the integrity and appearance quality of the finished sprayed product. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of a marking and coating equipment for electronic components.

[0028] Figure 2 A side view of the overall structure of a marking and coating equipment for electronic components.

[0029] Figure 3 This is a cross-sectional view of the overall structure of a marking and coating equipment for electronic components.

[0030] Figure 4 A schematic diagram of the chassis structure of a marking and coating equipment for electronic components.

[0031] Figure 5 A schematic diagram of the moving block structure of a marking and coating equipment for electronic components.

[0032] Figure 6 This is a schematic diagram of the air distribution chamber structure of a marking and coating equipment for electronic components.

[0033] Figure 7 A schematic diagram of the hot air guide component structure for marking and coating equipment for electronic components.

[0034] Figure 8 A partial structural cross-sectional view of the overall structure of a marking and coating equipment for electronic components.

[0035] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point A in the middle.

[0036] Figure 10 A schematic diagram of the airflow blocking component in a marking and coating equipment for electronic components.

[0037] Figure 11 This is a cross-sectional view of the support structure of a marking and coating equipment for electronic components.

[0038] Figure 12 A schematic diagram of the trigger structure of a marking and coating equipment for electronic components.

[0039] Figure 13 A partial cross-sectional view of the micro-switch that activates the trigger rod of a marking spraying device for electronic components.

[0040] Figure 14 This is a partial structural cross-sectional view of the spiral air distribution plate of a marking and coating equipment for electronic components.

[0041] 1. Marking sprayer; 2. Hot air purification and curing assembly; 21. Hot air guide component; 211. Heat insulation block; 212. Hot air chamber; 213. Air distribution chamber; 214. Air distribution plate; 215. Hot air outlet; 216. Spray nozzle; 217. Hot air blower; 218. Hot air duct; 219. Heat insulation sleeve; 22. Airflow blocking component; 221. Electromagnet; 222. Magnetic block; 223. Corrugated spring; 224. Blocking rod; 225. Sealing plug; 226. Sealing sleeve; 227. Touch plate; 228. Limiting frame; 23. Air distribution component; 231. Conical diverter cap; 232. Support wire; 233. Static baffle; 234. Spiral air distribution plate; 235. Spiral air distribution hole; 3. Trigger support assembly; 31. Support component; 311. Support plate; 312. Bellows; 313. Return spring; 314. Support rod; 32. Trigger component; 321. Trigger chamber; 322. Micro switch; 323. Trigger plate; 324. Trigger rod; 325. Sliding rod; 326. Contact ball; 327. Antistatic soft rubber cap; 328. Support spring; 4. Linear conveyor component; 41. Chassis; 5. Linear drive component; 51. Moving block; 52. Guide rail; 53. Guide block; 6. Hydraulic rod; 7. Marking and spraying component; 71. Spray gun. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0045] Example 1, referring to Figures 1 to 9 This is the first embodiment of the present invention. This embodiment provides a marking spraying device for electronic components, which can prevent uncured markings from being contaminated by dust, improve the clarity of markings and the pass rate of barcode scanning. It includes a marking spraying machine 1, and;

[0046] Specifically, the marking spraying component 7 is installed inside the marking spraying machine 1. The marking spraying component 7 includes a spray gun 71 installed inside the marking spraying machine 1. A hot air purification and curing component 2 is provided on the outer surface of the spray gun 71. The hot air purification and curing component 2 includes a hot air guide component 21 provided on the surface of the spray gun 71; and,

[0047] Furthermore, a marking spraying component 7 is installed on the bottom wall of the inner cavity of the marking spraying machine 1, a spray gun 71 is installed on the outer surface of the marking spraying machine 1, and a hot air purification and curing component 2 is installed on the outer surface of the spray gun 71. The hot air purification and curing component 2 includes a hot air guide component 21 installed on the outer surface of the spray gun 71.

[0048] Specifically, the hot air guide component 21 includes a heat insulation block 211 disposed on the surface of the spray gun 71, a hot air chamber 212 disposed on the surface of the heat insulation block 211, and an air distribution chamber 213 disposed at the bottom of the hot air chamber 212.

[0049] Furthermore, the hot air guide component 21 includes a heat insulation block 211 fixedly connected to the outer surface of the spray gun 71, a hot air chamber 212 fixedly connected to the side of the heat insulation block 211, and a uniform air chamber 213 fixedly connected to the bottom of the hot air chamber 212.

[0050] Specifically, the marking spraying machine 1 is equipped with a linear drive component 5. The linear drive component 5 includes a guide rail 52 installed inside the marking spraying machine 1. The guide rail 52 is equipped with a guide block 53 inside. The outer surface of the guide block 53 is equipped with a moving block 51. The bottom of the moving block 51 is equipped with a hydraulic rod 6. The end of the hydraulic rod 6 is connected to the marking spraying component 7.

[0051] Furthermore, a linear drive component 5 is installed on the top wall of the inner cavity of the marking spraying machine 1. The linear drive component 5 includes a guide rail 52 installed inside the marking spraying machine 1. A guide block 53 is slidably connected to the outer surface of the guide rail 52. A moving block 51 is fixedly connected to the outer surface of the guide block 53. A hydraulic rod 6 is fixedly connected to the bottom of the moving block 51. The end of the hydraulic rod 6 is connected to the marking spraying component 7. The marking spraying component 7 includes an ink tank fixedly connected to the inner cavity side wall of the marking spraying machine 1. The ink tank is connected to a spraying pipe. One end of the spraying pipe is connected to the inside of the spray gun 71. A pressure regulating valve and a shut-off valve are installed on the outer surface of the spraying pipe. The water tank stores the ink required for marking and spraying, and the sealed box is designed to effectively prevent ink evaporation or contamination by the external environment. The pressure regulating valve, as the pressure regulation center, can accurately adjust and maintain the ink pressure in the pipeline according to the spraying process requirements, ensuring that the ink pressure output to the spray gun 71 remains constant, thereby ensuring the uniform thickness and clear edges of the sprayed lines. The shut-off valve, as a safety control switch for fluid flow, can quickly cut off or open the ink path by raising and lowering the valve disc, providing reliable physical cut-off when the equipment is stopped, under maintenance, or the ink tank is replaced, preventing ink leakage. Together with the pressure regulating valve, they form a stable and safe constant pressure ink supply system.

[0052] Specifically, airflow blocking components 22 are provided inside the hot air chamber 212 and the air distribution chamber 213. The airflow blocking components 22 include an electromagnet 221. An electromagnet 221 is provided inside the hot air chamber 212. A blocking rod 224 is provided inside the hot air chamber 212. A sealing plug 225 is provided at the end of the blocking rod 224. A sealing sleeve 226 is provided on the outer surface of the sealing plug 225.

[0053] Furthermore, airflow blocking components 22 are installed inside the hot air chamber 212 and the air distribution chamber 213. The airflow blocking component 22 includes an electromagnet 221. The electromagnet 221 is fixedly connected inside the hot air chamber 212. A blocking rod 224 is installed inside the heat insulation block 211. A sealing plug 225 is fixedly connected to one end of the blocking rod 224. A sealing sleeve 226 is fixedly connected to the outer surface of the sealing plug 225. The sealing sleeve 226 is made of high-temperature resistant sealing material, which enables the sealing sleeve 226 to resist the high-temperature airflow generated by the hot air blower 217 and to prevent the sealing plug 225 from deforming due to long-term heating. At the same time, when the blocking rod 224 pulls the sealing plug 225 downward into the hot air outlet 215, the sealing sleeve 226 can achieve a tight fit with the inner wall of the hot air outlet 215 by its own elastic deformation, effectively eliminating assembly gaps, thereby greatly improving the sealing reliability when the hot air is cut off and avoiding hot air leakage.

[0054] Specifically, the hot air guide component 21 also includes a hot air blower 217. The outer surface of the marking sprayer 1 is provided with the hot air blower 217, and the outer surface of the hot air blower 217 is provided with a hot air pipe 218. The end of the hot air pipe 218 is connected to the interior of the hot air chamber 212, and the outer surface of the hot air chamber 212 is provided with a heat insulation sleeve 219.

[0055] Furthermore, the hot air guide component 21 also includes a hot air blower 217. The hot air blower 217 is fixedly connected to the upper surface of the marking sprayer 1. A hot air pipe 218 is fixedly connected to the air outlet end of the hot air blower 217. One end of the hot air pipe 218 is connected to the interior of the hot air chamber 212. A heat insulation layer is installed on the outer surface of the hot air pipe 218 to reduce heat loss to the surrounding environment, improve heat transfer efficiency, and at the same time play a role in preventing scalding. This prevents the high-temperature hot air pipe 218 from causing thermal damage to other precision electronic components or cables inside the equipment, thereby ensuring the safety and stability of the whole machine operation. A heat insulation sleeve 219 is fixedly connected to the outer surface of the hot air chamber 212. The heat insulation sleeve 219 is preferably made of high-temperature resistant flexible material. The heat insulation sleeve 219 can effectively prevent heat from being conducted and radiated outward, so as to reduce the heat loss rate of the hot air chamber 212, thereby ensuring the safety and reliability of the equipment operation.

[0056] Specifically, a distribution plate 214 is provided inside the hot air duct 218 near the hot air chamber 212, multiple nozzles 216 are provided at the bottom of the distribution chamber 213, and a hot air outlet 215 is provided between the distribution chamber 213 and the hot air chamber 212.

[0057] Furthermore, a distribution plate 214 is fixedly connected inside the hot air duct 218 and near the hot air chamber 212. The distribution plate 214 has multiple air outlets to distribute the concentrated high-pressure airflow from the heat dissipation duct 218, eliminating localized airflow impact. Simultaneously, the multiple air outlets redistribute and streamline the airflow, transforming the hot air entering the hot air chamber 212 into a stable and uniform laminar flow. This ensures that the airflow and temperature remain highly consistent across all areas within the hot air chamber 212, providing a stable airflow foundation for the uniform preheating and purification of electronic components. Multiple nozzles 216 are fixedly connected to the bottom of the distribution chamber 213. Hot air inlets 215 are opened inside both the distribution chamber 213 and the hot air chamber 212. The outer surfaces of the sealing plug 225 and the sealing sleeve 226 engage with the interior of the hot air inlets 215. The outer surface of the hot air duct 218 is equipped with a regulating valve and a stop valve. The regulating valve can flexibly adjust the flow rate in the hot air duct 218 to precisely control the preheating temperature reaching the target surface. The stop valve instantly cuts off the hot air flow when the equipment is stopped or under maintenance to prevent the continued leakage of high-temperature residual heat and ensure the safety of equipment operation. The nozzle 216 is tilted with an angle between 10° and 45° to convert the concentrated vertical airflow into a gentle tangential airflow, avoiding local airflow impact caused by direct hot air blowing. This makes the airflow more closely adhere to the surface of electronic components. At the same time, the oblique spray can more comprehensively cover the micro-undulations and edge gaps on the surface of electronic components, significantly improving the purification efficiency and preheating uniformity of release agent, grease and moisture, thus providing an excellent adhesion foundation for subsequent marking and spraying.

[0058] Specifically, the airflow blocking component 22 also includes a limiting frame 228. The limiting frame 228 is installed at the bottom of the hot air outlet 215. The end of the blocking rod 224 is provided with a touch plate 227. The inside of the touch plate 227 is provided with a magnetic block 222. The outer surface of the blocking rod 224 is provided with a corrugated spring 223.

[0059] Furthermore, the airflow blocking component 22 also includes a limiting frame 228. The bottom of the hot air outlet 215 is fixedly connected to the limiting frame 228. The bottoms of the sealing sleeve 226 and the sealing plug 225 abut against the upper surface of the limiting frame 228. The limiting frame 228 prevents the sealing plug 225 and the sealing sleeve 226 from excessively displacing downwards under the elastic force of the bellows spring 223. At the same time, it provides precise stroke limits and a stable support reference for the sealing sleeve 226 and the sealing plug 225, ensuring that the sealing sleeve 226 can be accurately and tightly locked at the hot air outlet 215, ensuring the sealing reliability when the hot air is cut off. The other end of the blocking rod 224 is fixedly connected to a touch plate 227, which is activated by... A magnetic block 222 is fixedly connected inside the plate 227. The magnetic block 222 is magnetically connected to the electromagnet 221. A corrugated spring 223 is sleeved and connected to the outer surface of the blocking rod 224. One end of the corrugated spring 223 is connected to the upper surface of the sealing plug 225, and the other end is connected to the top wall of the inner cavity of the hot air chamber 212. The corrugated spring 223 is preferably made of heat-treated high-strength spring steel with interlaced wave crests. Compared with conventional helical springs, the corrugated spring 223 has the advantages of minimal axial space occupation and rapid elastic force release. It can provide a strong reset pull force at the moment the electromagnet 221 is de-energized, so that the sealing plug 225 moves downward quickly to cut off the hot air.

[0060] Specifically, the air distribution chamber 213 is equipped with an air distribution component 23, which includes a support wire 232. The support wire 232 is provided inside the air distribution chamber 213, and a conical diverter cap 231 is provided at the end of the support wire 232. The air distribution chamber 213 is also equipped with a spiral air distribution plate 234, and the spiral air distribution plate 234 has spiral air distribution holes 235 inside.

[0061] Furthermore, an air distribution component 23 is installed inside the air distribution chamber 213. The air distribution component 23 includes support wires 232. Multiple support wires 232 are fixedly connected between the inner cavity sidewalls of the air distribution chamber 213. One end of each support wire 232 is fixedly connected to a conical diverter cap 231. A spiral air distribution plate 234 is installed obliquely inside the air distribution chamber 213. The spiral air distribution plate 234 has multiple spiral air distribution holes 235 inside. When hot air flows downward, the conical diverter cap 231 will divert the original airflow. The high-pressure airflow concentrated in the center is forced to deflect to all sides. At the same time, the support wire 232 generates a micro-turbulence effect when the airflow passes through, which can support the conical diverter cap 231. When the airflow initially diffused by the upper conical diverter cap 231 passes through the spiral diverter hole 235 in the spiral diverter plate 234, it uses its special spiral geometry to perform secondary rectification of the airflow, eliminate the lateral velocity, and make the hot air finally ejected from below present a vertical and uniform laminar flow state, thereby significantly improving the uniformity of heating or curing.

[0062] Specifically, the upper surface of the marking spraying machine 1 is provided with a linear conveyor 4, and the outer surface of the linear conveyor 4 is provided with multiple chassis 41;

[0063] Furthermore, the linear conveyor 4 has a conveying groove inside, and multiple conveying blocks are slidably connected inside the conveying groove. The upper surface of the conveying blocks is fixedly connected to the chassis 41. The linear conveyor 4 and the linear drive 5 have the same driving structure, both including an electric push rod or a ball screw connected to a drive motor. The linear conveyor 4 drives the chassis 41 to move linearly through the ball screw, and the linear drive 5 drives the moving block 51 to move linearly back and forth through the ball screw.

[0064] Example 2, refer to Figures 6 to 14 This is a second novel embodiment of the present invention, based on the previous embodiment, which includes a trigger support assembly 3 disposed on the outer surface of the spray gun 71, the trigger support assembly 3 including a support member 31 disposed on the surface of the spray gun 71; and,

[0065] The support member 31 includes a support plate 311 disposed on the outer surface of the spray gun 71, a corrugated pipe 312 disposed at the bottom of the support plate 311, and a support rod 314 disposed at the end of the trigger plate 323.

[0066] Furthermore, a trigger support assembly 3 is installed on the outer surface of the spray gun 71. The trigger support assembly 3 includes a support member 31 fixedly connected to the outer surface of the spray gun 71. The support member 31 includes a support plate 311 fixedly connected to the back of the spray gun 71. A bellows 312 is fixedly connected to the bottom of the support plate 311, and a support rod 314 is fixedly connected to one end of the bellows 312.

[0067] Specifically, the support member 31 also includes a return spring 313, the bellows 312 is provided with a return spring 313 inside, and the bottom of the support rod 314 is provided with a trigger member 32;

[0068] Furthermore, the support component 31 also includes a return spring 313. The return spring 313 is fixedly connected to the bottom wall of the inner cavity of the bellows 312. The other end of the return spring 313 is connected to the top wall of the inner cavity of the bellows 312. A trigger component 32 is installed at the bottom of the support rod 314. The bellows 312 is made of a flexible polymer elastic material (such as polyurethane or nitrile rubber). Its axially expandable flexible pleated structure can provide stable guidance for the up-and-down reciprocating motion of the return spring 313 and the support rod 314. At the same time, the bellows 312 can completely wrap the return spring 313 to form a reliable dynamic sealing protective layer, effectively isolating external dust and moisture, thereby significantly improving the operational stability of the trigger support component 3.

[0069] Specifically, the trigger element 32 includes a trigger chamber 321. The end of the support rod 314 is provided with the trigger chamber 321. The inner cavity of the trigger chamber 321 is provided with a micro switch 322. The inside of the trigger chamber 321 is provided with a sliding groove. The inside of the sliding groove is provided with a sliding rod 325. The end of the sliding rod 325 is provided with a contact ball 326. The outer surface of the contact ball 326 is provided with an antistatic soft rubber cap 327.

[0070] Furthermore, the support member 31 includes a trigger chamber 321. One end of the support rod 314 is fixedly connected to the trigger chamber 321. A micro switch 322 is fixedly connected to the top wall of the inner cavity of the trigger chamber 321. A sliding groove is provided on the bottom wall of the inner cavity of the trigger chamber 321. A sliding rod 325 is slidably connected inside the sliding groove. One end of the sliding rod 325 is fixedly connected to a contact ball 326. An antistatic soft rubber cap 327 is fixedly connected to the outer surface of the contact ball 326. The antistatic soft rubber cap 327 is preferably made of antistatic polyurethane material. In practical applications, the antistatic soft rubber cap 327 can effectively dissipate static charge and avoid electrostatic breakdown or damage to fragile electronic components. At the same time, it can prevent the rigid contact ball 326 from scratching the surface of electronic components and can effectively increase the contact friction, thereby ensuring the stability and accuracy of the sliding rod 325 during the triggering process.

[0071] Specifically, a trigger plate 323 is provided at the end of the sliding rod 325, a trigger rod 324 is provided on the upper surface of the trigger plate 323, and a support spring 328 is provided on the outer surface of the trigger rod 324;

[0072] Furthermore, a trigger plate 323 is fixedly connected to the other end of the sliding rod 325, a trigger rod 324 is fixedly connected to the upper surface of the trigger plate 323, a support spring 328 is sleeved and connected to the outer surface of the trigger rod 324, one end of the support spring 328 is connected to the upper surface of the trigger rod 324, and the other end is connected to the top wall of the inner cavity of the trigger chamber 321.

[0073] The marking spraying machine 1 has a drive actuator installed inside, and a PLC controller is fixedly installed on its outer surface to realize the automated and precise control of the machine's operating logic and process parameters. At the same time, a battery is also fixedly connected inside the marking spraying machine 1. The battery is electrically connected to each electrical structure inside the machine and provides them with a stable working power supply, thereby ensuring the normal and continuous operation of the marking spraying machine 1 during the operation process.

[0074] Working Principle: During operation, the PLC controller drives the servo ball screw inside the linear conveyor 4 to rotate, smoothly conveying the electronic components fixed on the chassis 41. When the electronic components are accurately conveyed to the working position inside the marking and spraying machine 1, the PLC controller immediately controls the linear conveyor 4 to stop running. At the same time, the PLC controller activates the electromagnet 221 to generate a magnetic field with the opposite polarity to the magnetic block 222, and simultaneously turns on the hot air blower 217 and the regulating valve. The high-temperature airflow generated by the hot air blower 217 passes through the hot air pipe 218. The air is delivered to the hot air chamber 212 and first undergoes initial air distribution through the air outlet on the air distribution plate 214. Then, the airflow impacts the static baffles 233 installed in a staggered manner inside the hot air chamber 212. The static baffles 233 can quickly disperse the concentrated high-pressure central airflow and eliminate the initial kinetic energy and turbulent pulsation of the airflow through physical isolation. This avoids the local airflow impact and uneven heating caused by direct hot air blowing, and allows the airflow to flow smoothly into the lower part of the hot air chamber 212 after being transformed into a relatively stable turbulent state, providing a stable airflow foundation for subsequent fine airflow equalization and purification.

[0075] Furthermore, when the electromagnet 221 is energized, it generates an attractive force that draws the magnetic block 222, causing the touch plate 227 to move upward. At this time, the corrugated spring 223 is in a stretched and stored state, and the sealing plug 225 is pulled upward by the blocking rod 224. The sealing plug 225 is disengaged from the hot air vent 215, thus making the hot air vent 215 unobstructed. The hot air in the hot air chamber 212 then enters the air distribution chamber 213 through the hot air vent 215. During this process, the airflow first impacts the conical diverter cap 231, which forces the high-velocity airflow in the central area to the four directions. The airflow, after initial diffusion, deflects radially and enters the spiral air distribution holes 235 within the spiral air distribution plate 234. The spiral air distribution holes 235 perform secondary rectification of the airflow, eliminating the lateral velocity component of the airflow. This results in the hot air being ejected from below exhibiting a vertical and uniform laminar flow state. Finally, the hot air is continuously blown downwards through the tilted nozzles 216, preheating and purifying the surface of the electronic components on the chassis 41. This effectively removes invisible mold release agents, grease, and moisture, increasing the surface temperature and providing an excellent adhesion foundation for subsequent marking and coating.

[0076] At the same time, when the PLC controller starts the linear drive 5 to drive the marking spraying part 7 to move down as a whole in preparation for spraying, the contact ball 326 of the trigger support assembly 3 will pre-touch the surface of the electronic components. As the equipment continues to press down, the anti-static soft rubber cap 327 provides flexible support to prevent wear on the electronic components. At the same time, the sliding rod 325 overcomes the elastic force of the support spring 328 and retracts upward, driving the trigger plate 323 and trigger rod 324 to move upward. The trigger plate 323 precisely presses the micro switch 322. After the micro switch 322 is triggered, it sends an electrical signal to the control system to cut off the power supply to the electromagnet 221, causing it to lose its magnetism. At the moment the electromagnet 221 is de-energized, the corrugated spring 2 The elastic force of 23 is released quickly, pulling the blocking rod 224 downward, causing the sealing plug 225 and sealing sleeve 226 to be tightly locked into the hot air outlet 215, realizing the instantaneous cutoff of the hot air flow. The limiting frame 228 ensures that the downward stroke of the sealing plug 225 is precisely limited, so that it can be firmly abutted against the hot air outlet 215, ensuring the smooth completion of the cutoff action. Furthermore, when the spray gun 71 continues to move downward, the contact ball 326, trigger chamber 321 and support rod 314 as a whole press the bellows 312 and return spring 313 upward relative to the spray gun 71, leaving sufficient flexible buffer clearance space to ensure that the spray gun 71 will not rigidly press or squeeze and damage the electronic components when it is pressed down.

[0077] Once the spray gun 71 has precisely reached the designated spraying position, the PLC controller immediately activates the precision needle valve. Combined with the constant-pressure ink provided by the sealed ink tank, this performs a high-precision marking spraying operation on the surface of the electronic components. During the spraying process, the contact ball 326 continuously moves across the surface of the electronic components, providing auxiliary support and positioning. Simultaneously, because the support plate 311 is mounted on the back of the spray gun 71 and maintains a certain safe distance from it, this staggered arrangement ensures that the movement trajectory of the contact ball 326 always avoids the ink spraying area of ​​the spray gun 71. This guarantees that the contact ball 326 will not cause any rubbing, smearing, or physical damage to the freshly sprayed wet film markings, effectively ensuring the integrity and clarity of the markings.

[0078] After the spraying is completed, the PLC controller controls the hydraulic rod 6 to move the entire marked sprayed part 7 upward. The contact ball 326 moves away from the electronic components. Under the combined action of the reset spring 313 and the support spring 328, the sliding rod 325 resets downward. The micro switch 322 pops open and returns to the initial state. After the PLC controller detects the switch reset signal, it re-supply the electromagnet 221, attracting the magnetic block 222 again, causing the hot air outlet 215 to reopen. At this time, the hot air blower 217 continues to blow hot air to perform in-situ hot air surface drying and curing on the marking that has just been sprayed and is still in a wet film state. This allows a cured skin to quickly form on the wet film surface, effectively preventing dust from the air from embedding and ensuring the clarity and yield of the marking.

[0079] After the hot air pre-curing process is completed, the PLC controller drives the ball screw inside the linear conveyor 4 to rotate again, which moves the chassis 41 carrying the processed components out of the spraying station and into the equipment unloading area. At the same time, the next batch of electronic components to be sprayed is transferred to the spraying station, and the whole machine performs the work in a cycle.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A marking and coating equipment for electronic components, characterized in that: Including a marking sprayer (1), and; A marking spraying component (7) is disposed inside the marking spraying machine (1). The marking spraying component (7) includes a spray gun (71) disposed inside the marking spraying machine (1). A hot air purification and curing assembly (2) is disposed on the outer surface of the spray gun (71). The hot air purification and curing assembly (2) includes a hot air guide (21) disposed on the surface of the spray gun (71). The hot air guide component (21) includes a heat insulation block (211) disposed on the surface of the spray gun (71), a hot air chamber (212) disposed on the surface of the heat insulation block (211), and an air distribution chamber (213) disposed at the bottom of the hot air chamber (212); wherein, A trigger support assembly (3) is disposed on the outer surface of the spray gun (71), the trigger support assembly (3) including a support member (31) disposed on the surface of the spray gun (71); and, The support member (31) includes a support plate (311) disposed on the outer surface of the spray gun (71), a corrugated pipe (312) disposed at the bottom of the support plate (311), and a support rod (314) disposed at the end of the trigger plate (323).

2. The marking and coating equipment for electronic components as described in claim 1, characterized in that: The marking spraying machine (1) is equipped with a linear drive (5) inside. The linear drive (5) includes a guide rail (52) inside the marking spraying machine (1). The guide rail (52) is equipped with a guide block (53) inside. The outer surface of the guide block (53) is equipped with a moving block (51). The bottom of the moving block (51) is equipped with a hydraulic rod (6). The end of the hydraulic rod (6) is connected to the marking spraying component (7). The upper surface of the marking spraying machine (1) is equipped with a linear conveyor (4). The outer surface of the linear conveyor (4) is equipped with multiple chassis (41).

3. The marking and coating equipment for electronic components as described in claim 1, characterized in that: The hot air chamber (212) and the air distribution chamber (213) are provided with airflow blocking components (22). The airflow blocking components (22) include electromagnets (221). The hot air chamber (212) is provided with electromagnets (221). The hot air chamber (212) is provided with blocking rods (224). The end of the blocking rods (224) is provided with sealing plugs (225). The outer surface of the sealing plugs (225) is provided with sealing sleeves (226).

4. The marking and coating equipment for electronic components as described in claim 1, characterized in that: The hot air guide (21) also includes a hot air blower (217). The outer surface of the marking sprayer (1) is provided with a hot air blower (217). The outer surface of the hot air blower (217) is provided with a hot air pipe (218). The end of the hot air pipe (218) is connected to the interior of the hot air chamber (212). The outer surface of the hot air chamber (212) is provided with a heat insulation sleeve (219).

5. The marking and coating equipment for electronic components as described in claim 4, characterized in that: An air distribution plate (214) is provided inside the hot air pipe (218) near the hot air chamber (212). Multiple nozzles (216) are provided at the bottom of the air distribution chamber (213). A hot air outlet (215) is provided between the air distribution chamber (213) and the hot air chamber (212).

6. The marking and coating equipment for electronic components as described in claim 3 or 5, characterized in that: The airflow blocking component (22) also includes a limiting frame (228). The bottom of the hot air outlet (215) is equipped with a limiting frame (228). The end of the blocking rod (224) is provided with a touch plate (227). The inside of the touch plate (227) is provided with a magnetic block (222). The outer surface of the blocking rod (224) is provided with a corrugated spring (223).

7. The marking and coating equipment for electronic components as described in claim 1, characterized in that: The support member (31) also includes a reset spring (313), the bellows (312) is provided with a reset spring (313), and the bottom of the support rod (314) is provided with a trigger (32).

8. The marking and coating equipment for electronic components as described in claim 7, characterized in that: The trigger (32) includes a trigger chamber (321), the end of the support rod (314) is provided with the trigger chamber (321), the inner cavity of the trigger chamber (321) is provided with a micro switch (322), the inside of the trigger chamber (321) is provided with a sliding groove, the inside of the sliding groove is provided with a sliding rod (325), the end of the sliding rod (325) is provided with a contact ball (326), and the outer surface of the contact ball (326) is provided with an antistatic soft rubber cap (327).

9. The marking and coating equipment for electronic components as described in claim 8, characterized in that: The end of the sliding rod (325) is provided with a trigger plate (323), the upper surface of the trigger plate (323) is provided with a trigger rod (324), and the outer surface of the trigger rod (324) is provided with a support spring (328).

10. The marking and coating equipment for electronic components as described in claim 1, characterized in that: The air distribution chamber (213) is provided with an air distribution component (23), which includes a support wire (232). The air distribution chamber (213) is provided with a support wire (232). The end of the support wire (232) is provided with a conical diverter cap (231). The air distribution chamber (213) is provided with a spiral air distribution plate (234). The spiral air distribution plate (234) has spiral air distribution holes (235) inside.

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