Alkaline etching liquid medicine adding device

Abstract

The utility model discloses an alkaline etching liquid medicine adding device which comprises a pipeline mechanism, a stirring mechanism, a first filtering mechanism and a second filtering mechanism, the pipeline mechanism comprises a mixing tank, a filtering pipe and a discharging pipeline, the stirring mechanism is arranged in the mixing tank, and the mixing tank is communicated with the filtering tank through a middle pipeline. The middle pipeline is provided with a first filtering mechanism, a second filtering mechanism is arranged in the filtering tank, and one side face of the filtering tank is communicated with the discharging pipeline. According to the device, the prepared alkaline etching liquid medicine is subjected to multiple filtration, so that the purity of the alkaline etching liquid medicine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board production, in particular to an alkaline etching solution adding device. Background Art

[0002] Printed circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. One of the processes in the manufacture of printed circuit boards is etching. During the etching process, it is necessary to continuously add an alkaline etching solution to the etching tank. The alkaline etching solution is generally blended with multiple seed solutions. The alkaline etching solution needs to be prepared during the addition process. The solvent added during the preparation of the alkaline etching solution will have turbidity, which needs to be treated before a pure quality etching solution can be produced. The existing technical means generally filter the turbidity contained in the prepared alkaline etching solution by setting a layer of filtering mechanism. In the actual production process, this layer of filtering mechanism alone has limited purification effect on turbidity, and there is still turbidity remaining in the alkaline etching solution, which affects the normal production of printed circuit boards. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an alkaline etching solution adding device.

[0004] The technical solution of the utility model is: an alkaline etching solution adding device, comprising a pipeline mechanism, a stirring mechanism, a first filtering mechanism and a second filtering mechanism, the pipeline mechanism comprising a mixing tank, a filtering tube and a discharge pipe, a stirring mechanism is arranged in the mixing tank, the mixing tank and the filtering tank are connected through an intermediate pipeline, the intermediate pipeline is provided with a first filtering mechanism, a second filtering mechanism is arranged in the filtering tank, and one side of the filtering tank is connected to the discharge pipe.

[0005] Furthermore, a plurality of feeding ports are provided on one side of the mixing tank, one end of each feeding port is connected to the mixing tank, and the other end is connected to the sub-liquid storage tank, and a first valve is provided on one side of the intermediate pipeline close to the mixing tank.

[0006] Furthermore, the stirring mechanism includes a stirring motor and a stirring shaft. A plurality of blades evenly spaced apart are arranged on the circumference of the side surface of the stirring shaft. One end of the stirring shaft passes through the mixing tank and is fixedly connected to the output end of the stirring motor.

[0007] Furthermore, the first filter mechanism includes a filter box and a filter plate. The filter box is provided with a through hole for the filter plate to pass through. The inner wall of the filter box is provided with a slide groove matching the filter plate. The top surface of the filter plate is provided with a handle.

[0008] Furthermore, the filter box is provided with double-layer filter plates, and the filter plates are symmetrically distributed on both sides of the filter box.

[0009] Furthermore, grooves are provided on both sides of the filter plate, and through filter holes are provided on the sides of the filter plate.

[0010] Furthermore, the top surface of the filter tank is provided with an opening for the second filter mechanism to pass through, and the inner wall of the filter tank is provided with a first vertical groove cooperating with the second filter mechanism, and the second filter mechanism moves up and down along the first vertical groove.

[0011] Furthermore, the second filtering mechanism includes a frame, a sponge block and a scraper. The sponge block is arranged in the inner cavity of the frame. The frame is provided with a second vertical groove matching the scraper. The side wall of the frame is provided with first through holes distributed in an array. The top of the frame is provided with a first handle.

[0012] Furthermore, a second handle is provided on the top surface of the scraper, a second through hole distributed in an array is provided on the side wall of the scraper, an inner groove is provided on the bottom surface of the scraper, leak holes distributed in an array are provided at the bottom of the inner groove, and a sponge strip is provided on the bottom wall of the inner groove.

[0013] Furthermore, the side wall of the inner groove is provided with an inclined plate, and the bottom surface of the inclined plate is provided with a plurality of reinforcing ribs.

[0014] Compared with the prior art, the utility model has the advantages that the alkaline etching solution is evenly mixed in the mixing tank by the stirring mechanism, and is filtered by the first filtering mechanism and the second filtering mechanism in sequence to obtain the alkaline etching solution with high purity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 This is a cross-sectional schematic diagram of the pipeline mechanism of the utility model;

[0019] Figure 4 This is an exploded view of the second filtering mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the framework of the utility model;

[0021] Figure 6 This is a schematic cross-sectional view of the scraper of the utility model;

[0022] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0023] Figure 8 for Figure 6 Enlarged view of point C in the middle.

[0024] Among them: 1. mixing tank; 2. filter tank; 3. discharge pipe; 4. stirring mechanism; 5. first filter mechanism; 6. second filter mechanism; 11. feeding port; 12. first valve; 13. intermediate pipe; 21. opening; 22. first vertical groove; 31. main pipe; 32. branch pipe; 41. stirring motor; 42. stirring shaft; 51. filter box; 52. filter plate; 521. groove; 522. handle; 61. frame; 62. sponge block; 63. scraper; 611. inner cavity; 612. second vertical groove; 613. first handle; 631. second handle; 632. inclined plate; 633. inner groove; 634. sponge strip; 6321. reinforcing rib; 635. convex edge. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0027] like Figures 1 to 8As shown, an alkaline etching solution adding device comprises a pipeline mechanism, a stirring mechanism 4, a first filtering mechanism 5 and a second filtering mechanism 6. The pipeline mechanism comprises a mixing tank 1, a filtering tank 2 and a discharge pipeline 3. A stirring mechanism 4 is provided in the mixing tank 1. The mixing tank 1 and the filtering tank 2 are connected through an intermediate pipeline 13. The intermediate pipeline 13 is provided with a first filtering mechanism 5. The filtering tank 2 is provided with a second filtering mechanism 6. One side of the filtering tank 2 is connected with the discharge pipeline 3. A plurality of feeding ports 11 are provided on one side of the mixing tank 1. One end of the feeding ports 11 is connected with the mixing tank 1, and the other end is connected with the sub-liquid storage tank. A first valve 12 is provided on one side of the intermediate pipeline 13 close to the mixing tank 1. Multiple sub-liquids enter the mixing tank 1 through each feeding port 11 respectively. After the stirring mechanism 4 mixes the various sub-liquids evenly, an alkaline etching solution is formed. The alkaline etching solution then flows into the filtering tank 2 through the intermediate pipeline 13. The alkaline etching solution is filtered by the first filtering mechanism 5 and the second filtering mechanism 6 in turn to obtain alkaline etching solution with higher purity, and finally the alkaline etching solution flows into the etching tank through the discharge pipe 3. The discharge pipe 3 includes a main pipe 31 and a plurality of branch pipes 32, one end of the main pipe 31 is connected to the filter tank 2, and the other end is connected to the plurality of branch pipes 32, and the plurality of branch pipes 32 facilitate the transportation of the alkaline etching solution to the plurality of etching tanks.

[0028] The stirring mechanism 4 includes a stirring motor 41 and a stirring shaft 42. A plurality of blades with uniform spacing are arranged on the circumference of the side of the stirring shaft 42. One end of the stirring shaft 42 passes through the mixing tank 1 and is fixedly connected to the output end of the stirring motor 41. The stirring motor 41 drives the stirring shaft 42 to rotate. Under the stirring of the blades, the multiple seed liquids are evenly mixed into an alkaline etching solution.

[0029] The first filter mechanism 5 includes a filter box 51 and a filter plate 52. The filter box 51 is provided with a through hole for the filter plate 52 to pass through. The inner wall of the filter box 51 is provided with a slide groove that matches the filter plate 52. The top surface of the filter plate 52 is provided with a handle 522. The filter plate 52 is slidably connected to the filter box 51, which is convenient for cleaning the filter plate 52. Grooves 521 are provided on both sides of the filter plate 52, and filter holes are provided on the side of the filter plate 52. Alkaline etching solution passes through the filter holes, and turbidity is retained in the grooves 521. As the filter plate 52 is lifted out of the filter box 51, the turbidity is separated from the alkaline etching solution. The filter box 51 is provided with a double-layer filter plate 52, and the filter plates 52 are symmetrically distributed on both sides of the filter box 51. The double-layer filter plate 52 can enable the first filter mechanism 5 to filter continuously. When one filter plate 52 is cleaned, the other filter plate 52 works normally.

[0030] The top surface of the filter tank 2 is provided with an opening 21 for the second filter mechanism 6 to pass through, and the inner wall of the filter tank 2 is provided with a first vertical groove 22 for matching the second filter mechanism 6, and the second filter mechanism 6 moves up and down along the first vertical groove 22. The detachable second filter mechanism 6 is convenient for inspecting and cleaning the second mechanism. The second filter mechanism 6 includes a frame 61, a sponge block 62 and a scraper 63, the sponge block 62 is arranged in the inner cavity 611 of the frame 61, the frame 61 is provided with a second vertical groove 612 for matching the scraper 63, the side wall of the frame 61 is provided with a first through hole distributed in an array, and the top of the frame 61 is provided with a first handle 613. By applying a pulling force to the first handle 613, the frame 61 can be moved along the first vertical groove 22. The top surface of the scraper 63 is provided with a second handle 631, and the top surface of the scraper 63 is provided with a convex edge 635. When the scraper 63 is assembled with the frame 61, the convex edge 635 can cover the gap between the scraper 63 and the frame 61 to prevent external debris from falling into the second filter mechanism through the gap. The side wall of the scraper 63 is provided with a second through hole distributed in an array, the bottom surface of the scraper 63 is provided with an inner groove 633, the bottom of the inner groove 633 is provided with a leak hole distributed in an array, the bottom wall of the inner groove 633 is provided with a sponge strip 634, the side wall of the inner groove 633 is provided with an inclined plate 632, and the bottom surface of the inclined plate 632 is provided with a plurality of reinforcing ribs 6321. The inclined plate 632 contacts one side of the sponge, and when the scraper 63 moves along the second vertical groove 612, the inclined plate 632 scrapes the turbidity on the surface of the sponge into the inner groove 633. The alkaline etching solution flows out from the leak hole on the bottom surface of the inner groove 633, and the turbidity is blocked by the sponge strip 634 and remains at the bottom of the inner groove 633. The reinforcing ribs 6321 at the bottom of the inclined plate 632 facilitate improving the anti-deformation ability of the inclined plate 632.

[0031] The working principle of the specific embodiment of the utility model is as follows: various sub-liquids enter the mixing tank 1 through the feeding port 11 on the mixing tank 1, and the stirring mechanism 4 mixes the various sub-liquids evenly to form an alkaline etching solution; when the alkaline etching solution passes through the intermediate pipe 13, the first filtering mechanism 5 performs a first filtration on the alkaline etching solution, and impurities can be separated from the alkaline etching solution through the filter plate 52; the alkaline etching solution enters the filter tank 2, and the second filtering mechanism 6 performs a second filtration on the alkaline etching solution to obtain an alkaline etching solution with a higher purity. The filtered alkaline etching solution is added to each etching tank in turn through the main pipe 31 and the branch pipe 32.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An alkaline etching solution adding device, characterized in that: The invention comprises a pipeline mechanism, a stirring mechanism (4), a first filtering mechanism (5) and a second filtering mechanism (6); the pipeline mechanism comprises a mixing tank (1), a filtering tank (2) and a discharge pipeline (3); the stirring mechanism (4) is arranged in the mixing tank (1); the mixing tank (1) and the filtering tank (2) are connected via an intermediate pipeline (13); the intermediate pipeline (13) is provided with the first filtering mechanism (5); the filtering tank (2) is provided with the second filtering mechanism (6); and one side of the filtering tank (2) is connected to the discharge pipeline (3).

2. The alkaline etching solution adding device according to claim 1, characterized in that: A plurality of feeding ports (11) are provided on one side of the mixing tank (1), one end of each feeding port (11) is connected to the mixing tank (1), and the other end is connected to the sub-liquid storage tank, and a first valve (12) is provided on a side of the intermediate pipe (13) close to the mixing tank (1).

3. The alkaline etching solution adding device according to claim 1, characterized in that: The stirring mechanism (4) comprises a stirring motor (41) and a stirring shaft (42). A plurality of blades are evenly spaced in the circumferential direction of the side surface of the stirring shaft (42). One end of the stirring shaft (42) passes through the mixing tank (1) and is fixedly connected to the output end of the stirring motor (41).

4. The alkaline etching solution adding device according to claim 1, characterized in that: The first filtering mechanism (5) comprises a filter box (51) and a filter plate (52); the filter box (51) is provided with a through opening for the filter plate (52) to pass through; the inner wall of the filter box (51) is provided with a slide groove matching the filter plate (52); and the top surface of the filter plate (52) is provided with a handle (522).

5. The alkaline etching solution adding device according to claim 4, characterized in that: The filter box (51) is provided with a double-layer filter plate (52), and the filter plates (52) are symmetrically distributed on both sides of the filter box (51).

6. The alkaline etching solution adding device according to claim 4, characterized in that: Grooves (521) are provided on both sides of the filter plate (52), and through filter holes are provided on the side surfaces of the filter plate (52).

7. The alkaline etching solution adding device according to claim 1, characterized in that: The top surface of the filter tank (2) is provided with an opening (21) for the second filter mechanism (6) to pass through, and the inner wall of the filter tank (2) is provided with a first vertical groove (22) for matching the second filter mechanism (6), and the second filter mechanism (6) moves up and down along the first vertical groove (22).

8. The alkaline etching solution adding device according to claim 1, characterized in that: The second filtering mechanism (6) comprises a frame (61), a sponge block (62) and a scraper (63); the sponge block (62) is arranged in an inner cavity (611) of the frame (61); the frame (61) is provided with a second vertical groove (612) cooperating with the scraper (63); the side wall of the frame (61) is provided with first through holes distributed in an array; and the top of the frame (61) is provided with a first handle (613).

9. The alkaline etching solution adding device according to claim 8, characterized in that: The top surface of the scraper (63) is provided with a second handle (631), the side wall of the scraper (63) is provided with second through holes distributed in an array, the bottom surface of the scraper (63) is provided with an inner groove (633), the bottom of the inner groove (633) is provided with leakage holes distributed in an array, and the bottom wall of the inner groove (633) is provided with a sponge strip (634).

10. The alkaline etching solution adding device according to claim 9, characterized in that: The side wall of the inner groove (633) is provided with an inclined plate (632), and the bottom surface of the inclined plate (632) is provided with a plurality of reinforcing ribs (6321).

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