Washing and drying integrated device for double-sided circuit board processing

Abstract

The utility model discloses a washing and drying integrated device for processing a double-sided circuit board, which relates to the technical field of circuit board processing and is characterized by comprising a cleaning box, a feeding table and a discharging table, the feeding table and the discharging table are respectively arranged at an inlet and an outlet of the cleaning box, and the cleaning box consists of a cleaning chamber and a drying chamber. A cleaning conveying roller used for conveying a circuit board is arranged in the cleaning chamber, and cleaning conveying rollers used for spraying and wetting for the first time are sequentially arranged above the cleaning conveying roller in the length direction of the cleaning chamber. The high-pressure cleaning device is arranged on the surface of the circuit board substrate, residual liquid sprayed by the high-pressure cleaning device on the surface of the circuit board substrate is wiped, so that no obvious liquid stain exists on the surface of the circuit board substrate when the circuit board substrate enters the drying chamber through the feeding port, stains cannot be left after the liquid stain is dried up after the circuit board substrate is dried, the cleaning quality is improved, and the drying speed of the circuit board substrate is increased due to no obvious liquid stain.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, and more specifically, it relates to a washing and drying integrated device for double-sided circuit board processing. Background Art

[0002] A circuit board is an electronic component manufactured using electronic printing technology, mainly used to achieve physical connection and electrical connectivity between electronic components. Circuit boards are indispensable in modern electronic devices. They not only provide electrical connections between components but also play roles in fixing components, transmitting signals, and dissipating heat.

[0003] Existing circuit boards need to be cleaned after the substrate is formed to wash away contaminants on their surfaces, such as oil stains, dust, and welding slag. Then, they undergo the next steps of cutting and electronic soldering to enable electronic transmission capabilities. When cleaning circuit board substrates, they are usually sprayed with a cleaning liquid first, and then cleaning rollers roll on their surfaces for cleaning. Then, a suction cup adsorbs and conveys them to a drying chamber for drying. However, in actual cleaning, the cleaning process and the drying process are separate steps and not integrated. Moreover, the cleaning liquid remaining on the cleaning rollers during cleaning will remain on the surface of the circuit board substrate. When directly proceeding to the drying step, the remaining cleaning liquid will leave stains after drying and cannot be thoroughly cleaned, resulting in low cleaning quality.

[0004] Therefore, to solve the above technical problems, this application proposes a washing and drying integrated device for double-sided circuit board processing. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a washing and drying integrated device for double-sided circuit board processing.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A washing and drying integrated device for double-sided circuit board processing, including a clean box, and a loading table and an unloading table respectively arranged at the entrance and exit of the clean box. The clean box is composed of a cleaning chamber and a drying chamber. Inside the cleaning chamber, there are cleaning conveyor rollers for conveying the circuit board. Above the cleaning conveyor rollers, along the length direction of the cleaning chamber, there are successively arranged a cleaning conveyor roller for the first spray wetting, a cleaning roller for cleaning the surface of the circuit board, and a high-pressure cleaning device for flushing the surface of the circuit board after cleaning. At the connection between the cleaning chamber and the drying chamber, there is a feeding port. Above the feeding port in the cleaning chamber, there is a wiping roller for drying the residual cleaning liquid stains on the circuit board. Inside the cleaning chamber, there is a placement rack, and above the placement rack, there are two groups of symmetrically arranged clamping components for clamping and conveying the circuit board. The clamping component includes a clamping block movably arranged on the inner wall of the cleaning chamber. Inside the drying chamber, there are drying conveyor rollers, and above the drying conveyor rollers, there is a baking device.

[0007] Preferably, the clamping assembly further includes a moving groove opened inside the cleaning chamber. An installation box is provided at a position corresponding to the moving groove outside the cleaning chamber. The installation box is communicated with the moving groove. A servo motor is provided on the outer side of the installation box. A threaded rod is provided at the output end of the servo motor. An electric telescopic rod is threadedly installed on the surface of the threaded rod. The clamping block is fixedly connected to the output end of the electric telescopic rod.

[0008] Preferably, the lower end surface of the electric telescopic rod is in contact with the bottom end of the installation box.

[0009] Preferably, the middle part of the clamping block is concave and is made of rubber material.

[0010] Preferably, a controller is provided outside the cleaning box.

[0011] Preferably, the wiping roller is installed above the feeding port through a mounting frame. A driving motor for driving the wiping roller to rotate is provided inside the mounting frame.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. In the present utility model, the conveyed circuit board substrate is in contact with the surface of the wiping roller. The wiping roller starts to rotate through the driving motor to wipe the residual liquid sprayed on its surface by the high-pressure cleaning device, so that there is no obvious liquid stain on the surface of the circuit board substrate when it enters the drying chamber through the feeding port. Therefore, no stain will be left after the liquid stain dries up after drying, improving the cleaning quality, and the absence of obvious liquid stains also speeds up its drying rate.

[0014] 2. In the present utility model, the power output ends of the electric telescopic rods on both sides of the circuit board substrate drive the clamping blocks to move towards each other to clamp the circuit board substrate. The servo motor is energized to drive the threaded rod to rotate. The rotating threaded rod drives the electric telescopic rod to move horizontally inside the moving groove, thereby driving the circuit board substrate to be conveyed on the surface of the placement rack, so that the circuit board substrate will not stop being conveyed due to friction when being wiped by the wiping roller, ensuring the stability of its operation and improving the practicability of the device.

[0015] 3. In the present utility model, the cleaning box is composed of a cleaning chamber and a drying chamber. First, the surface of the circuit board substrate is washed and rinsed inside the cleaning chamber, and then it is conveyed to the inside of the drying chamber by the clamping assembly for the drying step. The whole process is integrated washing and drying, improving the automation degree of the device, saving the process time for washing and drying the circuit board, and improving its washing and drying efficiency. Description of the Drawings

[0016] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the clean box of the present utility model;

[0019] Figure 3 is a schematic diagram of a partial internal structure of the clean box of the present utility model;

[0020] Figure 4 is a schematic diagram of the structure of the clamping assembly of the present utility model.

[0021] 1. Clean box; 2. Feeding table; 3. Discharging table; 4. Controller; 5. Cleaning chamber; 501. Spraying device; 502. Cleaning conveyor roller; 503. Cleaning roller; 504. High-pressure cleaning device; 505. Placing rack; 506. Mounting rack; 507. Wiping roller; 6. Drying chamber; 601. Drying conveyor roller; 602. Baking device; 7. Clamping assembly; 701. Moving groove; 702. Clamping block; 703. Installation box; 704. Servo motor; 705. Threaded rod; 706. Electric telescopic rod; 8. Feeding port. Detailed implementation manners

[0022] Embodiment 1:

[0023] As Figures 1-4 shown, the present utility model provides a washing and drying integrated device for double-sided circuit board processing, including a clean box 1, and a feeding table 2 and a discharging table 3 respectively arranged at the entrances and exits of the clean box 1. A controller 4 is arranged outside the clean box 1, and the controller 4 can control the internal circuit operation of the device and set its electrical operation parameters. The circuit board substrate is first transmitted by the staff through the feeding table 2 into the clean box 1;

[0024] The cleaning box 1 is composed of a cleaning chamber 5 and a drying chamber 6. Inside the cleaning chamber 5, there is a cleaning transfer roller 502 for conveying the circuit board. Above the cleaning transfer roller 502, along the length direction of the cleaning chamber 5, there are successively arranged a cleaning transfer roller 502 for the first spray wetting, a cleaning roller 503 for cleaning the surface of the circuit board, and a high-pressure cleaning device 504 for flushing the surface of the circuit board after cleaning. The circuit board substrate is conveyed inside the cleaning chamber 5 through the cleaning transfer roller 502. When the circuit board substrate enters the cleaning chamber 5, the spraying device 501 sprays the cleaning liquid on its surface for the first time to wet the surface of the circuit board substrate, then the cleaning roller 503 brushes its surface, and then the high-pressure nozzles on the high-pressure cleaning device 504 will spray high-pressure atomized ethanol on the surface of the circuit board substrate to rinse the surface of the circuit board substrate after brushing;

[0025] Inside the cleaning chamber 5, there is a placement rack 505. Above the placement rack 505, there are two groups of symmetrically arranged clamping components 7 for clamping and conveying the circuit board. The clamping component 7 includes a clamping block 702 movably arranged on the inner wall of the cleaning chamber 5. The middle part of the clamping block 702 is concave and made of rubber material. The clamping component 7 also includes a moving groove 701 opened inside the cleaning chamber 5. At the position corresponding to the moving groove 701 outside the cleaning chamber 5, there is an installation box 703. The installation box 703 is communicated with the moving groove 701. On the outer side of the installation box 703, there is a servo motor 704. The output end of the servo motor 704 is provided with a threaded rod 705. The surface of the threaded rod 705 is threadedly installed with an electric telescopic rod 706. The lower end surface of the electric telescopic rod 706 is attached to the bottom end of the installation box 703. The clamping block 702 is fixedly connected to the output end of the electric telescopic rod 706,

[0026] After the preliminary cleaning, the circuit board substrate is conveyed to the surface of the placement rack 505 through the cleaning transfer roller 502. At this time, the power output ends of the electric telescopic rods 706 on both sides of the circuit board substrate will drive the clamping blocks 702 to move towards each other to clamp the circuit board substrate. The servo motor 704 is energized to operate and drives the threaded rod 705 to rotate. The rotating threaded rod 705 will drive the electric telescopic rod 706 to move horizontally inside the moving groove 701, thereby driving the circuit board substrate to be conveyed on the surface of the placement rack 505;

[0027] At the connection between the cleaning chamber 5 and the drying chamber 6, there is a feeding port 8. Above the cleaning chamber 5 at the feeding port 8, there is a wiping roller 507 for wiping the residual liquid stains on the circuit board after cleaning. The wiping roller 507 is installed above the feeding port 8 through an installation frame 506. Inside the installation frame 506, there is a driving motor for driving the wiping roller 507 to rotate;

[0028] The conveyed circuit board substrate is attached to the surface of the wiping roller 507. The wiping roller 507 starts to rotate through the driving motor to wipe the residual liquid on its surface after being sprayed by the high-pressure cleaning device 504, so that there is no obvious liquid stain on the surface of the circuit board substrate when it enters the drying chamber 6 through the feeding port 8, so that there will be no stains left after the liquid stain dries up after drying, improving the cleaning quality, and the absence of obvious liquid stains also speeds up its drying rate;

[0029] Inside the drying chamber 6, there is a drying conveyor roller 601. Above the drying conveyor roller 601, there is a baking device 602. The circuit board substrate conveyed into the drying chamber 6 is transmitted in the drying chamber 6 through the drying conveyor roller 601. The baking device 602 on the surface of the drying conveyor roller 601 dries the liquid that has not been completely wiped clean on its surface, and finally it is conveyed to the surface of the discharge table 3 waiting for the staff to pick it up.

[0030] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention as shown in the accompanying drawings of the specification and described above; however, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A washing and drying device for processing double-sided circuit boards, comprising a clean box (1), and an inlet table (2) and an outlet table (3) respectively arranged at the inlet and outlet of the clean box (1), characterized in that: The clean box (1) is composed of a cleaning chamber (5) and a drying chamber (6). A cleaning conveying roller (502) for conveying circuit boards is provided inside the cleaning chamber (5). A cleaning conveying roller (502) for first spraying and wetting, a cleaning roller (503) for cleaning the surface of the circuit board, and a high-pressure cleaning device (504) for flushing the surface of the cleaned circuit board are arranged in sequence above the cleaning conveying roller (502) along the length direction of the cleaning chamber (5). A feeding port (8) is provided at the connection between the cleaning chamber (5) and the drying chamber (6). The cleaning chamber (5) is provided with a wiping roller (507) located above the feeding port (8) for wiping off residual liquid stains from cleaning the circuit board. A placement rack (505) is provided inside the cleaning chamber (5). Two groups of symmetrically arranged clamping assemblies (7) for clamping and transmitting the circuit board are provided above the placement rack (505). The clamping assemblies (7) include clamping blocks (702) movably arranged on the inner wall of the cleaning chamber (5). A drying and conveying roller (601) is provided inside the drying chamber (6), and a baking device (602) is provided above the drying and conveying roller (601).

2. The integrated washing and drying device for double-sided circuit board processing according to claim 1, characterized in that: The clamping assembly (7) further comprises a movable groove (701) provided inside the cleaning chamber (5); a mounting box (703) is provided outside the cleaning chamber (5) at a position corresponding to the movable groove (701); the mounting box (703) is communicated with the movable groove (701); a servo motor (704) is provided outside the mounting box (703); a threaded rod (705) is provided at the output end of the servo motor (704); an electric telescopic rod (706) is threadedly mounted on the surface of the threaded rod (705); and the clamping block (702) is fixedly connected to the output end of the electric telescopic rod (706).

3. The integrated washing and drying device for double-sided circuit board processing according to claim 2, characterized in that: The lower end surface of the electric telescopic rod (706) is in contact with the bottom end of the installation box (703).

4. The integrated washing and drying device for double-sided circuit board processing according to claim 3, characterized in that: The middle part of the clamping block (702) is concave and is made of rubber.

5. The integrated washing and drying device for double-sided circuit board processing according to claim 1, characterized in that: A controller (4) is provided outside the clean box (1).

6. The integrated washing and drying device for double-sided circuit board processing according to claim 1, characterized in that: The wiping roller (507) is installed above the feeding port (8) via a mounting frame (506), and a driving motor for driving the wiping roller (507) to rotate is provided inside the mounting frame (506).

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