A circuit board etching spraying device

Abstract

The utility model discloses a kind of line board etching spray devices, including etching machine main body, the inside bottom end of etching machine main body is equipped with etching hopper, the inside of etching machine main body is equipped with spray mechanism at the upper end of etching hopper;The spray mechanism includes the fixed frame of being installed in the inner wall of etching machine main body both sides, the inner wall of two described fixed frame is equipped with spray pipe, the top end and lateral wall of described spray pipe are vertically installed with adapter pipe, the end of the adapter pipe of top end and the end of the adapter pipe of lateral wall are vertically installed with spray etching pipeline;The setting of this line board etching spray device, spray mechanism uses the multidimensional layout of "top spray etching pipeline a+side wall spray etching pipeline b", cooperate with the etching spray head (interval can be adjusted according to line board size) of uniform equidistance distribution, so that etching liquid forms three-dimensional spray net from vertical direction (top) and horizontal direction (lateral wall), and the coverage uniformity of etching liquid on substrate surface is improved to 95% or more.

Claims

1. A circuit board etching spraying device, comprising an etching machine body (1), characterized in that, The etching machine body (1) is equipped with an etching bucket (2) at the bottom of its interior, and a spraying mechanism (6) is equipped at the top of the etching bucket (2) inside the etching machine body (1). The spraying mechanism (6) includes a fixing frame (7) installed on the inner walls of both sides of the etching machine body (1). The inner walls of the two fixing frames (7) are equipped with spray pipes (8). The top and side walls of the spray pipes (8) are vertically installed with adapter pipes (9). The ends of the adapter pipes (9) at the top and the ends of the adapter pipes (9) on the side walls are vertically installed with spray etching pipes (10). The sidewall of the spray etching pipe (10) is uniformly and equidistantly equipped with connecting pipes (12). The top end of the connecting pipe (12) is equipped with a high-pressure pipe (14). The end of the high-pressure pipe (14) is equipped with an etching nozzle (15). A sealing cap (13) is installed between the high-pressure pipe (14) and the connecting pipe (12).

2. The circuit board etching spraying device according to claim 1, characterized in that, The connecting pipe (12) is inserted into the lower end of the sealing cap (13), and the high-pressure pipe (14) is inserted into the top end of the sealing cap (13). The sealing cap (13) has an internal thread (19) inside, and the connecting pipe (21) has an external thread (20) on its outer wall. The internal thread (19) and the external thread (20) are matched. The end of the high-pressure pipe (14) is provided with a filter ring (15), and a filter screen (16) is embedded inside the filter ring (15).

3. The circuit board etching spraying device according to claim 2, characterized in that, The end of the high-pressure pipe (14) is provided with a limiting ring plate (18) inside the sealing cover (13). The outer diameter of the limiting ring plate (18) is larger than the inner diameter of the opening of the sealing cover (13). A bearing ring (17) is installed on the outside of the high-pressure pipe (14) behind the filter ring (15). The bearing ring (17) is connected to the filter ring (15).

4. The circuit board etching spraying device according to claim 1, characterized in that, Circuit board clamps (11) are installed on the inner walls of the top two end connectors (9).

5. The circuit board etching spraying device according to claim 1, characterized in that, The bottom of the etching machine body (1) is equipped with a high-pressure pump (3), the output end of the high-pressure pump (3) is equipped with a liquid delivery pipe (4), and the end of the liquid delivery pipe (4) is connected to a spray pipe (8).

6. The circuit board etching spraying device according to claim 1, characterized in that, The bottom end of the etching bucket (2) is equipped with a drain pipe (5), and the end of the drain pipe (5) is provided with a valve.

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