An SMT surface coating apparatus

Abstract

The utility model relates to electronic manufacturing technical field especially, it relates to a kind of SMT surface coating equipment, including support frame, conveyer belt, support block, spring, clamping block and processing chamber etc., support frame is installed with conveyer belt, conveyer belt is connected with multiple support blocks, support block is slidably connected with clamping block in two parts before and after, spring is connected between clamping block and adjacent support block, support frame left part is connected with processing chamber.The utility model is blown out to circuit board dust removal by gas from blowing port, by nozzle moving and spraying coating to circuit board coating, by conveyer belt conveying, by air suction, air circulation is accelerated to realize air drying, and harmful gas in air is inhaled into trachea, and after being handled by filter, dust removal is sprayed, to be able to convey circuit board to carry out surface cleaning, coating spraying and fast air drying at the same time harmful gas treatment is carried out to carry out dust removal, facilitate dust cleaning, prevent virtual coating, bubble or fall off, improve coating quality.

Description

Technical Field

[0001] This utility model relates to the field of electronic manufacturing technology, and in particular to an SMT surface coating device. Background Technology

[0002] Surface mount technology is one of the core processes in the electronics manufacturing industry. It achieves high-density integration, miniaturization, and high performance of electronic products by directly mounting tiny electronic components onto the surface of printed circuit boards. SMT surface coating, as a key step in the SMT process, mainly functions to coat the circuit board surface with a protective coating.

[0003] Current SMT surface coating typically involves transporting the printed circuit board (PCB) to the nozzle of the coating equipment. The nozzle moves and sprays coating onto the PCB. However, current equipment lacks surface cleaning capabilities. During transport, the PCB easily absorbs dust, oil, and other impurities. If not cleaned in time, this directly affects the adhesion between the coating and the PCB surface, leading to problems such as incomplete coating, bubbles, or coating peeling, which seriously affects the coating quality.

[0004] Therefore, it is necessary to design an SMT surface coating equipment that can transport circuit boards for surface cleaning, paint spraying, and rapid air drying, while simultaneously treating harmful gases and removing dust, facilitating dust removal, preventing incomplete coating, bubbles, or peeling, and improving coating quality. Utility Model Content

[0005] To overcome the shortcomings of current equipment that lacks surface cleaning capabilities, circuit boards easily attract dust, oil, and other impurities during transport. If not cleaned in time, this directly affects the adhesion between the coating and the circuit board surface, leading to problems such as incomplete coating, bubbles, or coating peeling, which seriously affects the coating quality. This utility model provides an SMT surface coating equipment that can transport circuit boards for surface cleaning, coating spraying, and rapid drying while simultaneously treating harmful gases for dust removal. This facilitates dust removal, prevents incomplete coating, bubbles, or peeling, and improves coating quality.

[0006] The technical solution of this utility model is: an SMT surface coating equipment, including a support frame, a conveyor belt, support blocks, springs, clamping blocks, a processing chamber, a touch screen, a guide rod, a lead screw, a motor, a moving block, a processing component, and a spraying component. A conveyor belt is installed on the support frame, and multiple support blocks are connected to the conveyor belt. Clamping blocks are slidably connected to both the front and rear parts of each support block, and springs connect each clamping block to adjacent support blocks. A processing chamber is connected to the left side of the support frame, and a touch screen is connected to the upper left front side of the processing chamber. A guide rod is connected to the upper middle part of the processing chamber, and a lead screw is rotatably connected to the inner upper part of the processing chamber. A motor is connected to the inner front side of the processing chamber. The motor and the processor are electrically connected via a control module. The output shaft of the motor is connected to the lead screw, and a moving block is threadedly connected to the lead screw. The moving block is slidably connected to the guide rod. The processing chamber is equipped with processing components for cleaning circuit boards, drying coatings, and adsorbing harmful gases. A spraying component is equipped on the moving block for spraying coatings.

[0007] As a preferred option, each support block has two sliding grooves, one at the front and one at the back.

[0008] Preferably, the support blocks are evenly distributed along the conveyor belt.

[0009] Preferably, the processing chamber is made of a transparent material.

[0010] Preferably, the processing assembly includes an air inlet, an air pipe, an air pump, a filter, and an air inlet. Multiple air inlets are connected to the lower left side of the processing chamber, and an air pipe is connected to the upper part of the processing chamber. All air inlets are connected to the air pipe. An air pump is connected to the left side of the air pipe. A filter is connected to the upper side of the processing chamber and is connected to the air pipe. Multiple air inlets are connected to the lower right side of the processing chamber and are all connected to the air pipe.

[0011] Preferably, both the lower part of the blowing port and the inhalation port are conical.

[0012] Preferably, the spraying assembly includes a connecting rod, an electric telescopic rod, and a nozzle. The connecting rod is connected to the lower side of the moving block, and the electric telescopic rod is connected to the connecting rod. The electric telescopic rod and the processor are electrically connected through a control module, and the nozzle is connected to the telescopic end of the electric telescopic rod.

[0013] Beneficial effects: 1. This utility model uses gas sprayed from the air outlet to clean the circuit board, and sprays paint onto the circuit board by moving the nozzle. It is transported by a conveyor belt and sucked in through the air inlet to accelerate air circulation and achieve air drying. Harmful gases in the air are sucked into the air pipe, treated by the filter, and then sprayed out for dust removal. Thus, it can transport the circuit board for surface cleaning, paint spraying, and rapid air drying while treating harmful gases and cleaning the dust. This facilitates dust removal, prevents incomplete coating, bubbles, or peeling, and improves the coating quality.

[0014] 2. This utility model places the circuit board on the clamping block of the support block and pushes the clamping block to move along the slide groove. The spring is stretched, thereby clamping the circuit board, which can clamp and fix the circuit board, prevent the circuit board from slipping or changing position, and improve the stability of conveying and the quality of spraying. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a side perspective view of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the support block and spring components of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the motor and lead screw components of this utility model.

[0019] In the above attached diagram: 1: support frame, 2: conveyor belt, 3: support block, 4: spring, 5: clamping block, 6: processing chamber, 7: touch screen, 8: air outlet, 9: air pipe, 10: air pump, 11: filter, 12: air inlet, 13: guide rod, 14: lead screw, 15: motor, 16: moving block, 17: connecting rod, 18: electric telescopic rod, 19: nozzle. Detailed Implementation

[0020] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] An SMT surface coating device, such as Figures 1-4As shown, the system includes a support frame 1, a conveyor belt 2, support blocks 3, springs 4, clamping blocks 5, a processing chamber 6, a touch screen 7, guide rods 13, lead screws 14, a motor 15, moving blocks 16, processing components, and spraying components. The conveyor belt 2 is mounted on the support frame 1, and multiple support blocks 3 are connected to the conveyor belt 2. Each support block 3 has two sliding grooves (front and rear) for easy movement. The support blocks 3 are evenly distributed along the conveyor belt 2. Clamping blocks 5 are slidably connected to the front and rear of each support block 3. Springs 4 connect each clamping block 5 to an adjacent support block 3. The processing chamber 6 is connected to the left side of the support frame 1. The processing chamber 6 is made of transparent material for easy observation of the processing process. A touch screen 7 is connected to the upper left front side of the processing chamber 6. A guide rod 13 is connected to the upper middle part of the processing chamber 6. A lead screw 14 is rotatably connected to the upper inner side of the processing chamber 6. A motor 15 is connected to the front inner side of the processing chamber 6. The motor 15 and the processor are electrically connected through a control module. The output shaft of the motor 15 is connected to the lead screw 14. A moving block 16 is threadedly connected to the lead screw 14. The moving block 16 is slidably connected to the guide rod 13. The processing chamber 6 is equipped with processing components for cleaning circuit boards, drying coatings, and adsorbing harmful gases. The moving block 16 is equipped with a spraying component for spraying coatings.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the processing assembly includes an air inlet 8, an air pipe 9, an air pump 10, a filter 11, and an air inlet 12. Nine air inlets 8 are connected to the lower left side of the processing chamber 6. The upper part of the processing chamber 6 is connected to the air pipe 9. All air inlets 8 are connected to the air pipe 9. The left side of the air pipe 9 is connected to the air pump 10. The upper side of the processing chamber 6 is connected to the filter 11, which is connected to the air pipe 9. Nine air inlets 12 are connected to the lower right side of the processing chamber 6. All air inlets 12 are connected to the air pipe 9. The lower parts of the air inlets 8 and air inlets 12 are conical to facilitate the blowing out and entering of gas.

[0023] like Figure 2 and Figure 4 As shown, the spraying assembly includes a connecting rod 17, an electric telescopic rod 18, and a nozzle 19. The connecting rod 17 is connected to the lower side of the moving block 16, and the electric telescopic rod 18 is connected to the connecting rod 17. The electric telescopic rod 18 and the processor are electrically connected through a control module, and the nozzle 19 is connected to the telescopic end of the electric telescopic rod 18.

[0024] This device can be used when electronic components need to be mounted on a circuit board. The support frame 1 is brought into contact with the ground, and the device is operated via the touchscreen 7 on the processing chamber 6 (which is made of transparent material). The circuit board is then placed on the clamping block 5 of the support block 3, and the clamping block 5 is pushed along the slide groove. The spring 4 is stretched, thus clamping the circuit board. The support blocks 3 are evenly distributed along the conveyor belt 2, which clamps and fixes the circuit board, preventing it from slipping or shifting, improving the stability of the conveyor and the quality of the coating. After clamping, the conveyor belt 2 is started, and the circuit board is transported by its rotation until it reaches below the air nozzle 8. The process then continues... The board is installed on the support block 3, and then the air pump 10 is started, so that the air is drawn into the air pipe 9 from the air intake 12, then flows through the filter 11 for filtration, and flows into the air blowing port 8 to blow away the dust on the circuit board for cleaning. The lower part of the air blowing port 8 and the air intake 12 are both conical. Then the circuit board is transported by the conveyor belt 2, so that the cleaned circuit board moves to the bottom of the nozzle 19, and at the same time the next circuit board moves to the bottom of the air blowing port 8 for cleaning. Then the paint conveying equipment is connected to the nozzle 19, and then the processor starts the electric telescopic rod 18 through the control module. The electric telescopic rod 18 drives the nozzle 19 to move. After moving to the appropriate position, the electric telescopic rod 18 is closed.

[0025] Next, the paint conveying equipment operates, allowing paint to flow into nozzle 19 and spray onto the circuit board where it needs to be coated. Simultaneously, motor 15 is started, driving screw 14 to rotate. Under the action of the thread, moving block 16 moves along guide rod 13, moving moving block 16, connecting rod 17, and nozzle 19. After moving to the appropriate position, motor 15 reverses its operation, driving screw 14 to rotate in the opposite direction. Under the action of the thread, moving moving block 16 in the opposite direction, moving moving block 16, connecting rod 17, and nozzle 19 in the opposite direction. The nozzle 19 then reciprocates to perform spraying. After spraying, the paint conveying equipment is shut off, and the circuit board continues to be conveyed via conveyor belt 2, moving the coated circuit board below air intake 12. Air pump 10 draws air into air intake 12, accelerating airflow and further improving the coating of the coated circuit board. The circuit board is air-dried, and harmful gases in the air are drawn into the air pipe 9 and processed through the filter 11. The processed air then flows into the air outlet 8 and is sprayed out to clean the next circuit board. At the same time, the cleaned circuit board is moved to the area below the nozzle 19, where it is sprayed with paint by moving the nozzle 19. After air-drying, the circuit board continues to be transported by the conveyor belt 2. The air-dried circuit board is then removed, the spring 4 returns, and the clamp 5 moves back to its original position. The above operation is then repeated to clean, spray, and air-dry the circuit board, while treating harmful gases until the coating is completed. This allows the circuit board to be transported for surface cleaning, paint spraying, and rapid air drying, while simultaneously treating harmful gases and cleaning dust, facilitating dust removal, preventing incomplete coating, bubbles, or peeling, and improving coating quality. After use, the conveyor belt 2, air pump 10, motor 15, and electric telescopic rod 18 can be turned off.

[0026] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. An SMT surface coating device, characterized in that: The system includes a support frame (1), a conveyor belt (2), support blocks (3), springs (4), clamps (5), a processing chamber (6), a touch screen (7), guide rods (13), lead screws (14), a motor (15), a moving block (16), a processing component, and a spraying component. A conveyor belt (2) is mounted on the support frame (1), and multiple support blocks (3) are connected to the conveyor belt (2). Clamps (5) are slidably connected to both the front and rear parts of each support block (3). Each clamp (5) is connected to an adjacent support block (3) by a spring (4). A processing chamber (6) is connected to the left side of the support frame (1), and a touch screen (7) is connected to the upper left front side of the processing chamber (6). A guide rod (13) is connected to the upper part of the chamber (6). A lead screw (14) is rotatably connected to the inner side of the upper part of the processing chamber (6). A motor (15) is connected to the inner side of the front part of the processing chamber (6). The motor (15) and the processor are electrically connected through the control module. The output shaft of the motor (15) is connected to the lead screw (14). A moving block (16) is connected to the lead screw (14) by a thread. The moving block (16) is slidably connected to the guide rod (13). The processing chamber (6) is equipped with a processing component for cleaning the circuit board, drying the coating, and adsorbing harmful gases. The moving block (16) is equipped with a spraying component for spraying the coating.

2. The SMT surface coating equipment as described in claim 1, characterized in that: Each support block (3) has two sliding grooves, one in the front and one in the back.

3. The SMT surface coating equipment as described in claim 1, characterized in that: The support blocks (3) are evenly distributed along the conveyor belt (2).

4. The SMT surface coating equipment as described in claim 1, characterized in that: The processing chamber (6) is made of transparent material.

5. The SMT surface coating equipment as described in claim 1, characterized in that: The processing components include an air inlet (8), an air pipe (9), an air pump (10), a filter (11), and an air inlet (12). Multiple air inlets (8) are connected to the lower left side of the processing chamber (6). An air pipe (9) is connected to the upper part of the processing chamber (6). All air inlets (8) are connected to the air pipe (9). An air pump (10) is connected to the left side of the air pipe (9). A filter (11) is connected to the upper side of the processing chamber (6). The filter (11) is connected to the air pipe (9). Multiple air inlets (12) are connected to the lower right side of the processing chamber (6). All air inlets (12) are connected to the air pipe (9).

6. The SMT surface coating equipment as described in claim 5, characterized in that: Both the blowing port (8) and the inhalation port (12) have a conical shape at the bottom.

7. The SMT surface coating equipment as described in claim 1, characterized in that: The spraying assembly includes a connecting rod (17), an electric telescopic rod (18), and a nozzle (19). The connecting rod (17) is connected to the lower side of the moving block (16), and the electric telescopic rod (18) is connected to the connecting rod (17). The electric telescopic rod (18) and the processor are electrically connected through a control module. The nozzle (19) is connected to the telescopic end of the electric telescopic rod (18).

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