Etching device for circuit board processing

Abstract

The utility model relates to the technical field of circuit board processing, and discloses an etching device for circuit board processing, which comprises an etching pool and a clamping device for fixing a product to be etched and ensuring that the position of the product is stable and is not influenced in the etching process. According to the etching device for circuit board processing, through cooperative work of the motor, the lead screw, the movable arm and the movable rod, a product clamped by the clamping device can be stably and accurately fed into the etching pool, it can be guaranteed that the position of the product is kept stable in the etching process, and precise adjustment of vertical movement can be achieved; each part can be in uniform contact with etching liquid, the problem of uneven etching caused by position deviation is avoided, the motor provides an efficient power source, the lead screw converts rotating force into linear motion, high precision and stability of operation are achieved, and stability in the running process is further improved through the guiding function of the movable rod.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to an etching device for circuit board processing. Background Technology

[0002] Circuit boards are essential basic components in electronic devices and are widely used in computers, communications, automobiles, consumer electronics and other fields. Their main function is to provide circuit connections for electronic components. The production process of circuit boards usually includes multiple steps such as copper-clad laminate preparation, pattern transfer, etching, drilling and electroplating. Among them, the etching process removes excess metal parts on the circuit board through chemical solutions to form a precise circuit pattern. This step places extremely high demands on the performance of etching equipment.

[0003] Traditional etching equipment typically has a simple structure and relies on a single spray or immersion mode for etching. This results in problems such as low solution utilization, uneven etching, and the generation of residual impurities. In addition, traditional equipment lacks a circulation and filtration system for the etching solution, making it difficult to reuse the chemical solution. This not only increases material consumption and operating costs but also pollutes the environment. Prolonged operation can also lead to excessive accumulation of impurities in the etching solution, further reducing the etching effect. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to provide an etching apparatus for circuit board processing, so as to solve the problem of low solution utilization rate of traditional etching apparatus mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an etching apparatus for circuit board processing, comprising an etching pool, a support arm at the upper end of the etching pool, a moving mechanism at the lower end of the support arm, a circulation mechanism at the front end of the etching pool, the moving mechanism including a movable rod, a motor inside the support arm on the side away from the movable rod, a lead screw at the upper end of the motor, a movable arm between the lead screw and the movable rod, and a clamping device at the lower end of the movable arm. The etching pool is used to contain etching solution, providing a working environment for the etching process of the product. The support arm provides a supporting structure for the operation of the entire device, increasing the stability of the system. The moving mechanism, through the coordinated action of various components, enables the clamping device and the product to move up and down. The movable rod acts as a guide, ensuring that the moving mechanism's movement trajectory is accurate and stable during operation. The motor provides the power source for the entire device, driving other components to work through rotational motion. The lead screw converts the motor's rotational motion into linear motion, thereby enabling the product to move up and down. The movable arm connects the lead screw and the clamping device, serving as a bridge for transmitting motion. The clamping device is used to fix the product to be etched, ensuring that the product's position is stable and unaffected during the etching process.

[0008] Preferably, the circulation mechanism includes a filter tank, and a circulation pump is provided at the upper end of the filter tank. The filter tank is used to filter the recovered etching solution to remove impurities, and the circulation pump drives the circulation of the etching solution by providing negative pressure.

[0009] Preferably, the upper end of the circulating pump is provided with a return pipe, and the other end of the return pipe is connected to the upper part of the etching tank. The return pipe sends the filtered etching solution back to the etching tank.

[0010] Preferably, a check valve is provided on the return pipe, and a connecting pipe is provided between the filter tank and the circulation pump. The check valve is used to prevent the etching solution from flowing back during the return process.

[0011] Preferably, the filter tank is equipped with a filter screen inside, and a handle is provided at the front end of the filter screen. The filter screen is the core component inside the filter tank and is used to remove solid impurities in the etching solution. The handle is used to facilitate the disassembly and cleaning of the filter screen.

[0012] Preferably, the filter tank is provided with a liquid inlet pipe at the rear end, and the other end of the liquid inlet pipe is connected to a position below the etching tank. The liquid inlet pipe transports the liquid in the etching tank to the filter tank.

[0013] Preferably, a heating device is provided at the front end of the etching pool, a drain pipe is provided at the bottom right end of the etching pool, and a temperature sensor is provided on the inner wall of the etching pool. The heating device is used to heat the etching solution to ensure that the liquid works within a suitable temperature range. The drain pipe is used to discharge waste liquid from the etching pool when needed. The temperature sensor is used to monitor the temperature of the etching solution in real time to ensure that the liquid is always in a suitable working state.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This etching device for circuit board processing, through the coordinated work of a motor, lead screw, movable arm, and movable rod, can stably and accurately feed the product held by the clamping device into the etching bath. It can not only ensure that the product maintains a stable position during the etching process, but also achieve precise adjustment of up and down movement, so that each part can be evenly contacted with the etching liquid, avoiding the problem of uneven etching caused by positional deviation. The motor provides an efficient power source, the lead screw converts rotational force into linear motion, thereby achieving high precision and stability of operation, and the guiding function of the movable rod further improves the smoothness of operation.

[0016] 2. The etching device for circuit board processing features a filter tank design that effectively removes impurities from the etching solution. The internal filter screen ensures the purity of the etching solution through meticulous filtration. A circulation pump generates negative pressure to rapidly circulate the etching solution, returning the filtered liquid to the top of the etching tank via connecting pipes and a return pipe. This allows for the reuse of the etching solution, saving on chemical solution costs and reducing environmental pollution. The handle design in the filter tank facilitates quick removal of the filter screen for cleaning or replacement by maintenance personnel, ensuring long-term efficient operation of the device.

[0017] 3. The etching device for circuit board processing combines a heating device with a temperature sensor to ensure that the etching solution temperature is always within the ideal range, avoiding the etching effect due to excessively high or low temperatures. It also reduces the difficulty of adjustment for operators. The drain pipe allows users to quickly clean up waste liquid, avoiding corrosion problems caused by long-term accumulation of waste liquid. The filter handle design not only facilitates disassembly and cleaning but also avoids the risk of direct contact with the etching solution. The modular design of the entire device makes the maintenance and replacement of each part simpler, improving work efficiency while reducing operational risks and the complexity of manual operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the etching device of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the moving mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the circulation mechanism of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the filter tank of this utility model.

[0022] In the diagram: 1. Etching tank; 2. Support arm; 3. Moving mechanism; 301. Movable rod; 302. Motor; 303. Lead screw; 304. Movable arm; 305. Clamping device; 4. Circulation mechanism; 401. Filter tank; 402. Circulation pump; 403. Return pipe; 404. Check valve; 405. Connecting pipe; 406. Filter screen; 407. Handle; 408. Inlet pipe; 5. Heating device; 6. Drain pipe; 7. Temperature sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution: an etching device for circuit board processing. The etching device includes an etching pool 1, a support arm 2 at the upper end of the etching pool 1, a moving mechanism 3 at the lower end of the support arm 2, and a circulation mechanism 4 at the front end of the etching pool 1. The moving mechanism 3 includes a movable rod 301. A motor 302 is installed inside the support arm 2 on the side away from the movable rod 301. A lead screw 303 is installed at the upper end of the motor 302. A movable arm 304 is installed between the lead screw 303 and the movable rod 301. A clamping device 305 is installed at the lower end of the movable arm 304. The etching pool 1 stores etching solution and provides an etching environment for the product, and its interior can accommodate the product and ensure sufficient contact between the product and the etching solution. The support arm 2 provides stable support for the moving mechanism and clamping device, bearing the load of vertical movement and clamping force. The moving mechanism 3 drives the lead screw 303 to rotate via the motor 302, which in turn drives the movable arm 304 to move vertically. The movable rod 301 acts as a guide to ensure the stability and accuracy of the movable arm 304 during movement. The motor 302, as a power source, converts electrical energy into mechanical energy output. The lead screw 303 converts the rotational motion of the motor 302 into the linear motion of the movable arm 304. The movable arm 304 is responsible for transmitting the motion, enabling the clamping device 305 to move vertically. The clamping device 305 fixes the product to be etched, ensuring its stability during the etching process by clamping the product.

[0025] The circulation mechanism 4 includes a filter tank 401, a circulation pump 402 at the upper end of the filter tank 401, a return pipe 403 at the upper end of the circulation pump 402, and the other end of the return pipe 403 connected to the upper part of the etching tank 1. A check valve 404 is installed on the return pipe 403. A connecting pipe 405 is provided between the filter tank 401 and the circulation pump 402. The circulation mechanism 4 realizes the filtration and circulation of the etching solution through the filter tank 401, the circulation pump 402, the return pipe 403, the check valve 404, and the connecting pipe 405. The filter tank 401 is equipped with a filter screen 406, which removes impurities from the etching solution. The filtered liquid is sent to the circulation pump 402 through the connecting pipe 405. The circulation pump 402 provides power to transport the filtered liquid to the return pipe 403, and then sends the liquid back to the etching tank 1 through the return pipe 403. The check valve 404 prevents liquid backflow in the pipeline.

[0026] The filter tank 401 is equipped with a filter screen 406. A handle 407 is provided at the front end of the filter screen 406. An inlet pipe 408 is provided at the rear end of the filter tank 401. The other end of the inlet pipe 408 is connected to the lower part of the etching pool 1. A heating device 5 is provided at the front end of the etching pool 1. A drain pipe 6 is provided at the bottom right end of the etching pool 1. A temperature sensor 7 is provided on the inner wall of the etching pool 1. The filter screen 406 is responsible for removing larger impurities in the etching solution to ensure the purity of the liquid. The handle 407 is used to facilitate the operator to remove or replace the filter screen 406. The inlet pipe 408 transports the etching solution from the etching pool 1 to the filter tank 401 for filtration. The heating device 5 heats the etching solution to ensure that the liquid temperature reaches the optimal etching conditions. The temperature sensor 7 monitors the temperature of the etching solution in real time and provides temperature information to adjust the working status of the heating device 5. The drain pipe 6 is used to discharge the waste liquid in the etching pool 1 for easy cleaning or replacement of the etching solution.

[0027] Working principle: The product to be etched is fixed on the clamping device 305. The rotation of the motor 302 drives the lead screw 303 to rotate, converting the rotational force into the vertical linear motion of the movable arm 304. The movable rod 301 acts as a guide during this process, ensuring that the movable arm 304 can stably drive the clamping device 305 to feed the product into the etching tank 1. The etching tank 1 contains pre-prepared etching solution. To ensure the etching effect, the heating device 5 can be activated in advance to heat the etching solution. The heating device 5 works in conjunction with the temperature sensor 7 to monitor the temperature of the etching solution and ensure it reaches its optimal working state. After the product enters the etching tank 1, it comes into full contact with the etching solution for etching. When etching is complete, the motor 302 rotates in the reverse direction, and the lead screw 303 moves in the reverse direction, driving the movable arm 304 upward, lifting the clamping device 305 and the product out of the etching tank 1. When the circulating pump 402 is working, it creates a negative pressure inside the filter tank 401. The etching solution is drawn into the filter tank 401 from the bottom of the etching pool 1 through the inlet pipe 408. The filter screen 406 inside the filter tank 401 filters impurities from the etching solution to ensure the cleanliness of the liquid. The filtered etching solution is then transported to the return pipe 403 through the connecting pipe 405, and then sent back to the top of the etching pool 1 by the return pipe 403, completing the liquid circulation and filtration operation. When the performance of the etching solution deteriorates or needs to be replaced after a period of use, the waste liquid can be discharged through the drain pipe 6 at the bottom right end of the etching pool 1. At the same time, the filter screen 406 can be removed from the filter tank 401 by pulling the handle 407 of the filter screen 406 for cleaning or replacement to ensure the continuity of the filtration function and the normal operation of the liquid circulation system, thereby ensuring the overall working efficiency and etching effect of the device.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. An etching apparatus for circuit board processing, the etching apparatus for circuit board processing comprising an etching pool (1), characterized in that: The upper end of the etching pool (1) is provided with a support arm (2), the lower end of the support arm (2) is provided with a moving mechanism (3), the front end of the etching pool (1) is provided with a circulation mechanism (4), the moving mechanism (3) includes a movable rod (301), a motor (302) is provided inside the side of the support arm (2) away from the movable rod (301), a lead screw (303) is provided at the upper end of the motor (302), a movable arm (304) is provided between the lead screw (303) and the movable rod (301), and a clamping device (305) is provided at the lower end of the movable arm (304).

2. The etching apparatus for circuit board processing according to claim 1, characterized in that: The circulation mechanism (4) includes a filter tank (401), and a circulation pump (402) is provided at the upper end of the filter tank (401).

3. The etching apparatus for circuit board processing according to claim 2, characterized in that: The upper end of the circulating pump (402) is provided with a return pipe (403), and the other end of the return pipe (403) is connected to the upper part of the etching pool (1).

4. The etching apparatus for circuit board processing according to claim 3, characterized in that: A check valve (404) is provided on the return pipe (403), and a connecting pipe (405) is provided between the filter tank (401) and the circulation pump (402).

5. The etching apparatus for circuit board processing according to claim 2, characterized in that: The filter tank (401) is equipped with a filter screen (406) inside, and a handle (407) is provided at the front end of the filter screen (406).

6. The etching apparatus for circuit board processing according to claim 2, characterized in that: The filter tank (401) is provided with a liquid inlet pipe (408) at the rear end, and the other end of the liquid inlet pipe (408) is connected to the lower part of the etching pool (1).

7. The etching apparatus for circuit board processing according to claim 1, characterized in that: A heating device (5) is provided at the front end of the etching pool (1), a drain pipe (6) is provided at the bottom right end of the etching pool (1), and a temperature sensor (7) is provided on the inner wall of the etching pool (1).

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