Automatic liquid supplementing equipment for PCB acid cycle etching

Abstract

The utility model relates to the technical field of etching, in particular to automatic liquid supplementing equipment for PCB (Printed Circuit Board) acid cycle etching. According to the technical scheme, the device comprises a shell, a processing box and a filter screen box, the filter screen box is sleeved with the shell, and sliding groove plates are welded to the two ends of the outer surface of the shell; a driving mechanism and a second pump body are installed on the side end face of the shell, and a gear is arranged on an output shaft of the driving mechanism. Rack plates are welded to the front end and the rear end of the filter screen box correspondingly, and the rack plates are in meshing transmission with the gears; a spray head is arranged on the inner wall of the processing box through a spray pipe; a storage box is mounted at the side end of the outer surface of the processing box, and a liquid level meter is mounted on the storage box; a pump body I is mounted on the top end surface of the processing box; a discharging pipe is fixedly embedded into the bottom end face of the machining box, and a valve is installed on the discharging pipe through a flange plate. The acid etching liquid recycling device meets the requirement for recycling acid etching liquid, liquid can be directly supplemented during recycling, and the filtering mechanism can be unfolded and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to etching technical field, concretely is a kind of automatic liquid supplementing equipment for PCB acidic circulation etching. BACKGROUND

[0002] PCB etching principle refers to using acidic etching liquid to corrode the part not needed on copper foil, to form the circuit pattern and wire route needed on circuit board.

[0003] PCB etching needs to discharge waste liquid after etching directly, waste etching liquid is caused when discharging, and etching needs to be supplied etching liquid constantly, affect work efficiency, thus still need to be improved. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of automatic liquid supplementing equipment for PCB acidic circulation etching, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of automatic liquid supplementing equipment for PCB acidic circulation etching, including shell, processing box and filter screen box,

[0006] The filter screen box is sleeved in the shell, and the outer surface of the shell is welded with sliding groove plate at both ends;

[0007] The side end surface of the shell is respectively equipped with driving mechanism and pump body two, and the output shaft of driving mechanism is provided with gear;

[0008] The front and rear ends of the filter screen box are welded with rack plate, and rack plate and gear are engaged transmission;

[0009] The inner wall of the processing box is provided with spray head by spray pipe;

[0010] The outer surface side end of the processing box is equipped with storage tank, and liquid level meter is installed on storage tank;

[0011] The top end surface of the processing box is equipped with pump body one;

[0012] The bottom end surface of the processing box is embedded with discharge pipe, and valve is installed on discharge pipe by flange plate.

[0013] Preferably, the front and rear ends of the filter screen box are welded with sliding groove plate, and sliding groove plate is slidably sleeved on guide block. The filter screen box is installed and guided by sliding groove plate slidably sleeved on guide block.

[0014] Preferably, the outer surface of the processing box is welded with connecting frame at both ends, and the end, away from the processing box, of connecting frame is welded on the shell. The processing box is installed on the shell by connecting frame.

[0015] Preferably, the bottom end face of the shell is welded with support blocks, four support blocks are arranged, and the four support blocks are arranged in a rectangular array relative to the shell. The shell can be installed and supported through the support blocks.

[0016] Preferably, the pump body one is in liquid communication with the storage tank through the extraction pipe two, and the pump body one is in liquid communication with the spray pipe through the extraction pipe one. When the pump body one is started, the pump body one can extract the acidic etching liquid stored in the storage tank through the extraction pipe two, so that the etching liquid is injected into the spray pipe through the extraction pipe one.

[0017] Preferably, the top end face of the storage tank is embedded with a filling pipe, and the filling pipe is in liquid communication with the storage tank. The etching liquid needed for use can be injected into the storage tank through the filling pipe for storage.

[0018] Preferably, the pump body two is in liquid communication with the shell through the return pipe one, and the pump body two is in liquid communication with the storage tank through the return pipe two. When the pump body two is started, the pump body two can extract the filtered acidic etching liquid in the shell through the return pipe one and inject it into the storage tank through the return pipe two for reflux liquid supplement.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1、The utility model discloses a processing tank is arranged, when carrying out etching procedure to PCB board, the operator first needs to place the PCB board stably in the processing tank. Subsequently, by starting the pump body one, the pump body utilizes the extraction pipe two and effectively extracts the acidic etching liquid from the storage tank. These etching liquids are introduced into the spray pipe through the extraction pipe one, and then the spray head is used to implement uniform spray etching operation to the PCB board. In the etching process, in order to utilize resources reasonably and protect the environment, the operator can open the discharge pipe in time, and the etched liquid is discharged into the filter screen box in the shell. This design is designed to make the etching liquid flow through the filter screen box, realize filtering treatment, thereby effectively preventing direct discharge of the etching liquid and potential resource waste. After the etching operation is completed, in order to further maintain and optimize the filtering system, the operator can activate the driving mechanism, and the mechanism drives the gear to rotate immediately. The gear rotates and drives the rack plate to move up and down reciprocatingly through the meshing effect, and the mechanical linkage finally makes the filter screen box expand smoothly. This step facilitates the subsequent cleaning work of the filtering mechanism, avoids the problem of reduced circulating filtering efficiency caused by the fact that the filtering mechanism is difficult to reach, and guarantees the continuous efficiency and convenience of the etching liquid circulating use.

[0021] 2, The utility model discloses a casing is provided, when acidic etching liquid is filtered through filter screen box and is discharged into the inside of casing and completes the filtering procedure, to ensure the continuous supply and efficient use of etching liquid, the operator can rely on the liquid level meter equipped on the storage tank to monitor the remaining amount of the internal acidic etching liquid. Once the etching liquid inventory is found to be insufficient, when it needs to be supplemented, the operator only needs to start pump body no. 2. Pump body no. 2 starts once, that is, through the return pipe no. 1, the filtered and purified acidic etching liquid in the casing is extracted. These treated etching liquids are then accurately injected into the storage tank through the return pipe no. 2, realizing the automatic backflow and liquid supplementing process of the etching liquid. This design not only avoids the inconvenience and errors that may be caused by manual injection, but also significantly improves the liquid supplementing effect, ensuring the stability and continuity of the etching liquid circulation backflow. Therefore, the system not only meets the demand for automatic liquid supplementing, but also promotes the recycling of acidic etching liquid, improving the overall work efficiency and resource utilization. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the utility model;

[0023] Figure 2 It is a bottom view structural schematic diagram of the utility model;

[0024] Figure 3 It is a side view structural schematic diagram of the utility model;

[0025] Figure 4 It is a top view structural schematic diagram of the casing of the utility model;

[0026] Figure 5 It is a sectional view structural schematic diagram of the casing of the utility model.

[0027] In the drawing: 1, support block; 2, casing; 3, connecting frame; 4, processing box; 5, spray head; 6, spray pipe; 7, extraction pipe no. 1; 8, pump body no. 1; 9, filling pipe; 10, extraction pipe no. 2; 11, storage tank; 12, liquid level meter; 13, filter screen box; 14, discharge pipe; 15, return pipe no. 1; 16, pump body no. 2; 17, return pipe no. 2; 18, driving mechanism; 19, rack plate; 20, gear; 21, guide block; 22, sliding slot plate. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] Embodiment one

[0030] As Figures 1-5 The utility model provides a kind of automatic liquid supplementing equipment for PCB acid circulation etching, including shell 2, processing box 4 and filter screen box 13,

[0031] Filter screen box 13 is sleeved in shell 2, and both ends of the outer surface of shell 2 are welded with sliding groove plate 22;

[0032] The side end surface of shell 2 is respectively provided with driving mechanism 18 and pump body two 16, and gear 20 is arranged on the output shaft of driving mechanism 18;

[0033] Rack plate 19 is welded at the front and rear ends of filter screen box 13, and rack plate 19 is engaged with gear 20;

[0034] The inner wall of processing box 4 is provided with spray head 5 by spray pipe 6;

[0035] Storage tank 11 is installed on the side end of the outer surface of processing box 4, and liquid level meter 12 is installed on storage tank 11;

[0036] Pump body one 8 is installed on the top end surface of processing box 4;

[0037] Discharge pipe 14 is embedded and fixed on the bottom end surface of processing box 4, and valve is installed on discharge pipe 14 by flange plate.

[0038] Supporting block 1 is welded on the bottom end surface of shell 2, supporting block 1 is provided with four, and four supporting blocks 1 are distributed in rectangular array relative to shell 2, and shell 2 can be installed and supported by supporting block 1.

[0039] Pump body one 8 is in liquid communication with storage tank 11 by extraction pipe two 10, and pump body one 8 is in liquid communication with spray pipe 6 by extraction pipe one 7, when pump body one 8 is started, pump body one 8 can extract the acid etching solution stored in storage tank 11 through extraction pipe two 10, so that etching solution is injected into spray pipe 6 through extraction pipe one 7.

[0040] Filling pipe 9 is embedded and fixed on the top end surface of storage tank 11, and filling pipe 9 is in liquid communication with storage tank 11, and the acid etching solution needed to be used can be injected into storage tank 11 for storage through filling pipe 9.

[0041] Based on example 1: personnel in etching PCB, personnel can place PCB board in processing box 4 after, personnel can start through pump body one 8, pump body one 8 can be extracted through the pipe two 10 to the acid etching solution stored in storage tank 11 is extracted, makes etching liquid injects into the spray pipe 6 through the extraction pipe one 7, makes the acid etching solution can be sprayed etching to PCB board through the spray head 5, and personnel can open the discharge pipe 14 and be etched after etching liquid is discharged into the filter screen box 13 of shell 2, makes etching liquid pass through the filter screen box 13 and is filtered, to avoid etching liquid directly discharging causes waste, and personnel can open driving mechanism 18 and drive gear 20 to rotate after etching, gear 20 rotates and can engage and drive rack plate 19 and move up and down, to drive filter screen box 13 and expand, to meet etching liquid filtration and expand filter mechanism after filtration, avoid filter mechanism in the interior and be difficult to clean and affect the use of circulating filtration.

[0042] Example two

[0043] As Figures 1-5 The utility model discloses a kind of automatic liquid supplementing equipment for PCB acid etching, compared with example one, the utility model also includes: shell 2, processing box 4 and filter screen box 13,

[0044] Filter screen box 13 is sleeved in shell 2, and both ends of the outer surface of shell 2 are welded with sliding groove plate 22;

[0045] The side end surface of shell 2 is respectively provided with driving mechanism 18 and pump body two 16, and gear 20 is arranged on the output shaft of driving mechanism 18;

[0046] Both ends of filter screen box 13 are welded with rack plate 19, and rack plate 19 is engaged with gear 20;

[0047] The inner wall of processing box 4 is provided with spray head 5 through spray pipe 6;

[0048] The side end of the outer surface of processing box 4 is installed with storage tank 11, and liquid level meter 12 is installed on storage tank 11;

[0049] The top end surface of processing box 4 is installed with pump body one 8;

[0050] The bottom end surface of processing box 4 is embedded with discharge pipe 14, and valve is installed on discharge pipe 14 through flange plate.

[0051] And as the person skilled in the art is well known, the pump body one 8, pump body two 16 and drive mechanism 18 are provided, the pump body one 8, pump body two 16 and drive mechanism 18 can be connected with external power supply and controlled by external control switch, and the control switch can be installed on the side end face of the processing box 4 for use, which all belong to conventional means or common knowledge, and will not be described here, and the person skilled in the art can make any selection according to the needs or convenience. The drive mechanism 18 drives the gear 20 to rotate.

[0052] The front and rear ends of the filter screen box 13 are welded with sliding groove plates 22, and the sliding groove plates 22 are slidingly sleeved on the guide blocks 21, so that the filter screen box 13 can be installed and guided by sliding the sliding groove plates 22 on the guide blocks 21.

[0053] The outer surface of the processing box 4 is welded with connecting frames 3 at both ends, and the end of the connecting frame 3 away from the processing box 4 is welded on the shell 2, so that the processing box 4 can be installed on the shell 2 through the connecting frame 3.

[0054] The pump body two 16 is in liquid communication with the shell 2 through the return pipe one 15, and the pump body two 16 is in liquid communication with the storage tank 11 through the return pipe two 17, so that when the pump body two 16 is started, the filtered and treated acidic etching liquid in the shell 2 can be extracted through the return pipe one 15 and injected into the storage tank 11 through the return pipe two 17 for reflux replenishment.

[0055] Based on example 2: when the acidic etching liquid is filtered by the filter screen box 13 and discharged into the shell 2, the personnel can automatically replenish the liquid, and the personnel can observe the liquid level meter 12 on the storage tank 11 to determine the remaining acidic etching liquid inside. When the liquid needs to be replenished, the personnel opens the pump body two 16, and when the pump body two 16 is started, the filtered and treated acidic etching liquid in the shell 2 can be extracted through the return pipe one 15 and injected into the storage tank 11 through the return pipe two 17 for reflux replenishment, so as to avoid the influence of manual filling on the replenishment effect, and to meet the automatic replenishment and the circulation and reflux use of the acidic etching liquid.

[0056] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic liquid supplementing device for PCB acid circulation etching, comprising a shell (2), a processing box (4) and a filter screen box (13), characterized in that: the filter screen box (13) is sleeved in the shell (2), and slide groove plates (22) are welded at both ends of the outer surface of the shell (2); a drive mechanism (18) and a pump body two (16) are respectively installed at the side end faces of the shell (2), and a gear (20) is arranged on the output shaft of the drive mechanism (18); gear rack plates (19) are welded at both ends of the filter screen box (13), and the gear rack plates (19) are in meshing transmission with the gear (20); spray heads (5) are arranged on the inner wall of the processing box (4) through spray pipes (6); a storage box (11) is installed at the side end of the outer surface of the processing box (4), and a liquid level meter (12) is installed on the storage box (11); a pump body one (8) is installed at the top end face of the processing box (4); a discharge pipe (14) is embedded and fixed at the bottom end face of the processing box (4), and a valve is installed on the discharge pipe (14) through a flange plate.

2. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1, characterized in that: slide groove plates (22) are welded at both ends of the filter screen box (13), and the slide groove plates (22) are slidably sleeved on guide blocks (21).

3. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1, characterized in that: connection frames (3) are welded at both ends of the outer surface of the processing box (4), and one end of each connection frame (3) away from the processing box (4) is welded on the shell (2).

4. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1 or 3, characterized in that: support blocks (1) are welded at the bottom end face of the shell (2), four support blocks (1) are arranged in a rectangular array relative to the shell (2).

5. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1, characterized in that: the pump body one (8) is in liquid communication with the storage box (11) through a second drawing pipe (10), and the pump body one (8) is in liquid communication with the spray pipe (6) through a first drawing pipe (7).

6. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1, characterized in that: a filling pipe (9) is embedded and fixed at the top end face of the storage box (11), and the filling pipe (9) is in liquid communication with the storage box (11).

7. The automatic liquid supplementing device for PCB acid circulation etching according to claim 1, characterized in that: the pump body two (16) is in liquid communication with the shell (2) through a first return pipe (15), and the pump body two (16) is in liquid communication with the storage box (11) through a second return pipe (17).

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