Circuit board etching tin removal equipment

Abstract

This utility model discloses a circuit board etching and desoldering equipment, including a waste liquid collection tank and a working chamber. Beneficial effects: This utility model is equipped with a drive motor, a mounting frame, and clamping plates. When desoldering a circuit board, the etched circuit board can be placed on the top surface of the mounting frame. Then, rotating the handwheel drives the forward and reverse threaded rods to rotate, simultaneously moving the clamping plates inward to clamp the circuit board. After the motor housing enters the working chamber, desoldering liquid is introduced through the nozzle and sprayed onto the surface of the circuit board for desoldering. At this time, the drive motor drives the mounting frame to rotate slowly, improving the uniformity of the desoldering liquid spray. After desoldering is completed, the drive motor drives the mounting frame to rotate rapidly, centrifugally removing the desoldering liquid from the surface, reducing the difficulty of subsequent cleaning and improving work efficiency. Simultaneously, the removed desoldering liquid passes through the bottom hole into the waste liquid collection tank, improving waste liquid collection efficiency and reducing waste.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and more specifically, to circuit board etching and desoldering equipment. Background Technology

[0002] Etching is a technique that removes materials using chemical reactions or physical impacts, while desoldering is a measure to remove excess tin from the surface of a workpiece. Circuit boards also require corresponding equipment during the manufacturing process for etching and desoldering.

[0003] Traditional desoldering equipment sprays desoldering solution onto the surface of the circuit board during desoldering. After the desoldering process is completed, the staff removes the circuit board for further cleaning. However, a large amount of desoldering solution remains on the surface of the circuit board after desoldering. Removing the board directly makes subsequent cleaning difficult, increasing the difficulty of rinsing and soaking. At the same time, it is difficult to recycle the desoldering solution remaining on the surface of the circuit board, resulting in waste of the desoldering solution. Further improvements can be made. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a circuit board etching and desoldering equipment, which has the advantages of improving work efficiency, reducing waste, and improving ease of use, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned advantages of improved work efficiency, reduced waste, and enhanced ease of use, the specific technical solution adopted by this utility model is as follows: A circuit board etching and tin stripping device includes a waste liquid collection tank and a working chamber. The working chamber is fixedly installed on the top surface of the waste liquid collection tank, and a motor housing is installed inside the working chamber. A drive motor is fixedly installed inside the motor housing. A mounting bracket is installed at the output end of the drive motor, and a top groove is opened on the top surface of the mounting bracket. A clamping plate is slidably connected through the top groove. A positive and negative threaded rod is rotatably connected inside the mounting bracket, and the positive and negative threaded rod passes through the clamping plate and is threadedly connected to the clamping plate. A handwheel is fixedly installed at one end of the positive and negative threaded rod. A spray pipe is fixedly connected through the surface of the working chamber, and a nozzle is installed on the surface of the spray pipe. A bottom hole is opened on the top surface of the waste liquid collection tank, and a through hole is opened on the bottom surface of the mounting bracket.

[0008] Furthermore, a support plate is fixedly installed on the front facade of the waste liquid collection box, and the top surface of the support plate is flush with the top surface of the waste liquid collection box. An electric cylinder is fixedly installed on the back facade of the working chamber, and the other end of the moving rod of the electric cylinder is fixedly connected to the back facade of the motor box. A moving wheel is fixedly installed on the bottom surface of the motor box.

[0009] Furthermore, the working compartment has a hinged door on its front facade, and the door has a transparent structure.

[0010] Furthermore, the nozzle extends directly above the mounting bracket, and multiple sets of nozzles are arranged, with the nozzles discharging water vertically downwards.

[0011] Furthermore, the clamping plates are arranged in two sets, and the surface of the clamping plates is densely covered with round holes.

[0012] Furthermore, the two ends of the positive and negative threaded rods are rotatably connected to the mounting bracket via bearings, and the positive and negative threaded rods are arranged parallel to the top groove, and the width of the top groove is equal to the width of the clamping plate.

[0013] Furthermore, a drain pipe is connected through the bottom surface of the waste liquid collection tank, and a valve is installed on the surface of the drain pipe.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a circuit board etching and desoldering equipment, which has the following beneficial effects:

[0016] (1) This utility model is equipped with a drive motor, a mounting frame and a clamping plate. When the circuit board is desoldered, the etched circuit board can be placed on the top surface of the mounting frame. Then, the handwheel is turned to drive the positive and negative threaded rods to rotate, which drives the clamping plate to move inward at the same time to clamp the circuit board. After the motor box enters the working chamber, the desoldering liquid is introduced through the nozzle and sprayed out through the nozzle onto the surface of the circuit board to desolder. At this time, the drive motor drives the mounting frame to rotate slowly to improve the uniformity of the desoldering liquid spray. After the desoldering is completed, the drive motor drives the mounting frame to rotate quickly to throw off the desoldering liquid on the surface by centrifugation, which reduces the difficulty of subsequent cleaning and improves the work efficiency. At the same time, the desoldering liquid that is thrown off enters the waste liquid collection tank through the bottom hole, which improves the waste liquid collection efficiency and reduces waste.

[0017] (2) This utility model is equipped with an electric cylinder. When installing the circuit board, the electric cylinder extends and pushes the motor box to move outward. The motor box moves along the support plate to the outside of the working chamber via the moving wheels on the bottom surface, which makes it convenient for the staff to install and remove the circuit board. This avoids the trouble of the staff having to put their hands into the working chamber to disassemble it, and further improves the convenience of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the internal structure of a circuit board etching and desoldering equipment according to an embodiment of the present utility model;

[0020] Figure 2 This is a side view of a circuit board etching and desoldering equipment according to an embodiment of the present utility model;

[0021] Figure 3 This is an enlarged view of node A of the circuit board etching and desoldering equipment according to an embodiment of the present utility model;

[0022] Figure 4 This is a structural schematic diagram of the mounting bracket according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Waste liquid collection tank; 2. Working chamber; 3. Motor box; 4. Drive motor; 5. Casters; 6. Mounting frame; 7. Spray pipe; 8. Nozzle; 9. Support plate; 10. Bottom hole; 11. Drain pipe; 12. Chamber door; 13. Electric cylinder; 14. Handwheel; 15. Threaded rod (both forward and reverse); 16. Top groove; 17. Clamping plate; 18. Through hole. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a circuit board etching and desoldering device is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, the circuit board etching and desoldering equipment according to an embodiment of the present invention includes a waste liquid collection tank 1 and a working chamber 2. The working chamber 2 is fixedly installed on the top surface of the waste liquid collection tank 1, and a motor box 3 is provided inside the working chamber 2. A drive motor 4 is fixedly installed inside the motor box 3. A mounting bracket 6 is installed at the output end of the drive motor 4. The drive motor 4 and the mounting bracket 6 are arranged coaxially. A top groove 16 is opened on the top surface of the mounting bracket 6, and a clamping plate 17 is slidably connected through the top groove 16. A positive and negative threaded rod 15 is rotatably connected inside the mounting bracket 6, and the positive and negative threaded rod 15 passes through the clamping plate 17 and is threadedly connected to the clamping plate 17. The clamping plate 17 is symmetrically arranged along the center position of the positive and negative threaded rod 15, and a handwheel 14 is fixedly installed at one end of the positive and negative threaded rod 15. A spray pipe 7 is fixedly connected through the surface of the working chamber 2, and a nozzle 8 is installed on the surface of the spray pipe 7. A top groove 16 is opened on the top surface of the waste liquid collection tank 1. The mounting bracket 6 has a bottom hole 10 and a through hole 18 on its bottom surface. Both the bottom hole 10 and the through hole 18 are densely distributed in multiple sets. When performing desoldering on the circuit board, the etched circuit board can be placed on the top surface of the mounting bracket 6. Then, the handwheel 14 is turned to drive the forward and reverse threaded rods 15 to rotate, which simultaneously moves the clamping plate 17 inward to clamp the circuit board. After the motor box 3 enters the working chamber 2, the desoldering liquid is introduced through the nozzle 7 and sprayed out through the nozzle 8 onto the surface of the circuit board for desoldering. At this time, the drive motor 4 drives the mounting bracket 6 to rotate slowly to improve the uniformity of the desoldering liquid spray. After desoldering is completed, the drive motor 4 drives the mounting bracket 6 to rotate quickly to remove the desoldering liquid on the surface by centrifugation, reducing the difficulty of subsequent cleaning and improving work efficiency. At the same time, the desoldering liquid that is removed passes through the bottom hole 10 into the waste liquid collection tank 1, improving the waste liquid collection efficiency and reducing waste.

[0028] In one embodiment, a support plate 9 is fixedly installed on the front of the waste liquid collection tank 1, and the top surface of the support plate 9 is flush with the top surface of the waste liquid collection tank 1. An electric cylinder 13 is fixedly installed on the back of the working chamber 2, and the other end of the moving rod of the electric cylinder 13 is fixedly connected to the back of the motor box 3. A moving wheel 5 is fixedly installed on the bottom surface of the motor box 3. When installing the circuit board, the electric cylinder 13 extends and pushes the motor box 3 outward. The motor box 3 moves along the support plate 9 to the outside of the working chamber 2 via the moving wheel 5 on the bottom surface, which facilitates the installation and removal of the circuit board by the staff and avoids the trouble of the staff reaching into the working chamber 2 to disassemble it, further improving the convenience of use.

[0029] In one embodiment, the working chamber 2 is hinged to a door 12 on its front facade, and the door 12 has a transparent structure. When desoldering, the door 12 is closed to prevent desoldering liquid from splashing.

[0030] In one embodiment, the nozzle 7 extends directly above the mounting bracket 6, and multiple sets of nozzles 8 are arranged, with the nozzles 8 spraying water vertically downwards to improve the uniformity of the desoldering solution spray. The nozzle 7 is connected to the desoldering solution pumping equipment, which is a common structure in the art and is not shown in the figure.

[0031] In one embodiment, two sets of clamping plates 17 are arranged, and the surface of the clamping plates 17 is densely covered with round holes to facilitate the passage of solder stripping solution.

[0032] In one embodiment, the two ends of the positive and negative threaded rod 15 are rotatably connected to the mounting bracket 6 through bearings, and the positive and negative threaded rod 15 is arranged parallel to the top groove 16. The width of the top groove 16 is equal to the width of the clamping plate 17. The top groove 16 serves as a guide for the movement of the clamping plate 17, stabilizing the movement of the clamping plate 17.

[0033] In one embodiment, a drain pipe 11 is connected through the bottom surface of the waste liquid collection tank 1, and a valve is installed on the surface of the drain pipe 11 to facilitate the discharge of waste liquid.

[0034] Working principle: When stripping the solder from a circuit board, the etched circuit board is placed on top of the mounting bracket 6. Then, the handwheel 14 is turned to rotate the forward and reverse threaded rods 15, which simultaneously move the clamping plate 17 inward to clamp the circuit board. After the motor housing 3 enters the working chamber 2, the solder stripping solution is introduced through the nozzle 7 and sprayed out through the nozzle 8 onto the surface of the circuit board for solder stripping. At this time, the drive motor 4 drives the mounting bracket 6 to rotate slowly to improve the uniformity of the solder stripping solution spray. After the solder stripping is completed, the drive motor 4 drives the mounting bracket 6 to rotate rapidly to remove the solder stripping solution from the surface. By centrifuging, the solder stripping solution is removed, reducing the difficulty of subsequent cleaning and improving work efficiency. At the same time, the removed solder stripping solution enters the waste liquid collection tank 1 through the bottom hole 10, improving the waste liquid collection efficiency and reducing waste. Meanwhile, when installing circuit boards, the electric cylinder 13 extends, pushing the motor box 3 outward. The motor box 3 moves along the support plate 9 to the outside of the working chamber 2 via the moving wheels 5 on the bottom surface, making it convenient for workers to install and remove circuit boards. This avoids the trouble of workers reaching into the working chamber 2 for disassembly, further improving the ease of use.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit board etching and tin stripping device, comprising a waste liquid collection tank (1) and a working chamber (2), characterized in that, The waste liquid collection tank (1) has a working chamber (2) fixedly installed on its top surface. The working chamber (2) has a motor box (3) inside it. The motor box (3) has a drive motor (4) fixedly installed inside it. The output end of the drive motor (4) has a mounting bracket (6). The mounting bracket (6) has a top groove (16) on its top surface. A clamping plate (17) is slidably connected through the top groove (16). A positive and negative threaded rod (15) is rotatably connected inside the mounting bracket (6). The positive and negative threaded rod (15) passes through the clamping plate (17) and is threadedly connected to the clamping plate (17). A handwheel (14) is fixedly installed at one end of the positive and negative threaded rod (15). A spray pipe (7) is fixedly connected through the surface of the working chamber (2). A nozzle (8) is installed on the surface of the spray pipe (7). The waste liquid collection tank (1) has a bottom hole (10) on its top surface. The mounting bracket (6) has a through hole (18) on its bottom surface.

2. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The waste liquid collection box (1) is fixedly installed with a support plate (9) on its front side, and the top surface of the support plate (9) is flush with the top surface of the waste liquid collection box (1). The working chamber (2) is fixedly installed with an electric cylinder (13) on its back side, and the other end of the moving rod of the electric cylinder (13) is fixedly connected to the back side of the motor box (3). The bottom surface of the motor box (3) is fixedly installed with a moving wheel (5).

3. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The working chamber (2) has a door (12) hinged to its front facade, and the door (12) is transparent.

4. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The nozzle (7) extends directly above the mounting bracket (6), and multiple sets of nozzles (8) are arranged, with the nozzles (8) discharging water vertically downwards.

5. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The clamping plates (17) are arranged in two sets, and the surface of the clamping plates (17) is densely covered with round holes.

6. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The two ends of the positive and negative threaded rod (15) are rotatably connected to the mounting bracket (6) through bearings, and the positive and negative threaded rod (15) is arranged in parallel with the top groove (16), and the width of the top groove (16) is equal to the width of the clamping plate (17).

7. The circuit board etching and desoldering equipment according to claim 1, characterized in that, The bottom surface of the waste liquid collection box (1) is connected to a drain pipe (11), and a valve is installed on the surface of the drain pipe (11).

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