Circuit board pickling device

Abstract

The utility model belongs to the technical field of circuit board pickling, and particularly relates to a circuit board pickling device which comprises a bottom plate, a mounting rack arranged at the top of the bottom plate, a pickling box arranged at the center of the top of the bottom plate corresponding to the mounting rack, a telescopic rod arranged at the top of the mounting rack, a storage frame arranged at the telescopic end of the telescopic rod, and a placement groove formed in the storage frame. A storage frame is arranged on the outer side of the pickling box, a filter frame is arranged on the outer side of the storage frame, fixing plates are arranged at the positions, corresponding to the front end and the rear end of the mounting frame, of the top of the bottom plate respectively, a motor is arranged on the outer side of one set of fixing plates, a reciprocating lead screw is arranged between every two sets of corresponding fixing plates, and a liquid discharging pipe is arranged at the front end of the pickling box. And the generated impurities fall into the filter frame and are collected, so that the impurities generated in the pickling process are prevented from falling into a pickling solution, the impurities are prevented from blocking a liquid discharge pipe, and meanwhile, the use frequency of the pickling solution can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board pickling, in particular to a circuit board pickling device. Background Art

[0002] Circuit board pickling is an important part of the printed circuit board (PCB) manufacturing process. Its main purpose is to remove oxides and contaminants on the circuit board to improve the quality and reliability of the circuit board. The pickling process uses the corrosive effect of acidic solutions to dissolve oxides and contaminants on the surface of the circuit board. Commonly used acidic solutions include sulfuric acid and hydrochloric acid. In acidic solutions, redox reactions will occur on the metal surface, reducing the oxides to metal ions, which are then dissolved into the solution. Pickling can make the circuit board surface clean and smooth, providing a good foundation for subsequent printing and welding processes.

[0003] The prior art has the following problems:

[0004] The existing circuit board is usually placed in a pickling tank during pickling, that is, the circuit board is immersed in the pickling tank and is relatively static, and the static method makes it difficult for impurities on the circuit board to fall off automatically. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a circuit board pickling device, which solves the problem that the existing circuit boards are usually left stationary in a pickling box during pickling, that is, the circuit boards are immersed in the pickling box and are relatively still, and the stationary method makes it difficult for impurities on the circuit boards to fall off automatically.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board pickling device, comprising a base plate, a mounting frame is provided on the top of the base plate, a pickling box is provided at the center of the mounting frame corresponding to the top of the base plate, a telescopic rod is provided on the top of the mounting frame, a storage frame is provided at the telescopic end of the telescopic rod, a placement groove is provided inside the storage frame, a filter frame is provided on the outside of the storage frame, fixed plates are respectively provided at the front and rear ends of the mounting frame corresponding to the top of the base plate, a motor is provided on the outside of one group of the fixed plates, a reciprocating screw rod is provided between every two groups of corresponding fixed plates, and a drain pipe is provided at the front end of the pickling box.

[0007] As a preferred technical solution of the utility model, the front end of the filter frame is hingedly installed with a door body, the top of the filter frame is fixedly connected to the top of the storage frame, connecting rods are fixedly installed at the four corners of the bottom of the storage frame, and one end of the connecting rod away from the storage frame is fixedly connected to the inner wall of the filter frame.

[0008] As a preferred technical solution of the utility model, one end of one group of the reciprocating screws extends to the outside of the fixed plate and is fixedly connected to the output end of the motor, and a transmission belt is installed between the two groups of the reciprocating screws.

[0009] As an optimal technical solution of the utility model, the bottom of the mounting frame is slidably mounted on the base plate and is threadedly connected to the reciprocating screw rod. Support rods are fixedly mounted at the four corners of the bottom of the base plate, and the valve body is fixedly mounted on the drain pipe.

[0010] As a preferred technical solution of the utility model, the heating plate is fixedly installed at the bottom center of the pickling box, the electronic pH detector and the temperature detector are respectively fixedly installed at the front end of the inner wall of the pickling box, and the heating plate, the electronic pH detector and the temperature detector are respectively electrically connected to the controller.

[0011] Compared with the prior art, the utility model provides a circuit board pickling device, which has the following beneficial effects:

[0012] 1. This circuit board pickling device drives the reciprocating screw to rotate by starting the motor during pickling, so that the mounting frame reciprocates with the rotation of the reciprocating screw, thereby facilitating the swinging of the circuit board during pickling, thereby facilitating the removal of impurities on the circuit board.

[0013] 2. This circuit board pickling device, when pickling the circuit board, sets a filter frame, and the impurities generated will fall into the inside of the filter frame and be collected, thereby preventing the impurities generated during the pickling process from falling into the pickling liquid, preventing the impurities from clogging the drain pipe, and at the same time increasing the number of times the pickling liquid is used.

[0014] 3. This circuit board pickling device can adjust the temperature of the pickling solution inside the pickling box by starting the heating plate, detect the temperature by a temperature detector, and detect the acid concentration in the pickling solution by an electronic pH detector, so as to ensure the processing quality and efficiency of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of the utility model.

[0018] In the figure: 1. bottom plate; 2. mounting frame; 3. pickling box; 4. telescopic rod; 5. storage frame; 6. placement slot; 7. filter frame; 8. door body; 9. connecting rod; 10. fixing plate; 11. motor; 12. reciprocating screw rod; 13. transmission belt; 14. drain pipe; 15. controller; 16. heating plate; 17. electronic pH detector; 18. temperature detector; 19. support rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment: a circuit board pickling device comprises a bottom plate 1, a mounting frame 2 is arranged on the top of the bottom plate 1, a pickling box 3 is arranged at the center of the mounting frame 2 corresponding to the top of the bottom plate 1, a telescopic rod 4 is arranged on the top of the mounting frame 2, a storage frame 5 is arranged at the telescopic end of the telescopic rod 4, a placement groove 6 is opened inside the storage frame 5, and a filter frame 7 is arranged on the outside of the storage frame 5, so as to collect impurities dropped from the pickled circuit board; fixed plates 10 are arranged at the front and rear ends of the top of the bottom plate 1 corresponding to the mounting frame 2, and a motor 11 is arranged on the outside of one group of fixed plates 10 to drive a reciprocating screw 12 to rotate; a reciprocating screw 12 is arranged between every two groups of corresponding fixed plates 10, and a drain pipe 14 is arranged at the front end of the pickling box 3 to facilitate the discharge of waste liquid.

[0021] In this embodiment, the front end of the filter frame 7 is hingedly installed with a door body 8, the top of the filter frame 7 is fixedly connected to the top of the storage frame 5, and connecting rods 9 are fixedly installed at the four corners of the bottom of the storage frame 5. The end of the connecting rod 9 away from the storage frame 5 is fixedly connected to the inner wall of the filter frame 7. By setting the filter frame 7, when the circuit board is pickled, the impurities generated will fall into the inside of the filter frame 7 and be collected, thereby preventing the impurities generated during the pickling process from falling into the pickling liquid and preventing the impurities from clogging the drain pipe 14, while increasing the number of times the pickling liquid is used; one end of one group of reciprocating screw rods 12 extends to the outside of the fixed plate 10 and is fixedly connected to the output end of the motor 11, and a transmission belt 13 is installed between the two groups of reciprocating screw rods 12; the bottom of the mounting frame 2 is slidably installed on the bottom plate 1 and is threadedly connected to the reciprocating screw rod 12, and the four corners of the bottom of the bottom plate 1 are fixedly installed. A support rod 19 is installed, and a valve body is fixedly installed on the drain pipe 14. The reciprocating screw 12 is driven to rotate by starting the motor 11, so that the mounting frame 2 reciprocates with the rotation of the reciprocating screw 12, so that the circuit board can be swung when the circuit board is pickled, so as to facilitate the removal of impurities on the circuit board; the heating plate 16 is fixedly installed at the bottom center of the pickling box 3, and the electronic PH detector 17 and the temperature detector 18 are respectively fixedly installed at the front end of the inner wall of the pickling box 3. The heating plate 16, the electronic PH detector 17 and the temperature detector 18 are respectively electrically connected to the controller 15. By starting the heating plate 16, the temperature of the pickling solution inside the pickling box 3 can be adjusted, and the temperature can be detected by the temperature detector 18, and the acid concentration in the pickling solution can be detected by the electronic PH detector 17, so as to ensure the processing quality and efficiency of the circuit board.

[0022] The working principle and use process of the utility model are as follows: the operator places the circuit board to be pickled inside the storage frame 5, and drives the storage frame 5 to move downward by starting the telescopic rod 4, so that the storage frame 5 is immersed in the pickling solution, and then drives the reciprocating screw 12 to rotate by starting the motor 11, so that the mounting frame 2 reciprocates with the rotation of the reciprocating screw 12, so that when the circuit board is pickled, the circuit board is swung, so that impurities on the circuit board are removed, and at the same time, the impurities generated by the pickling circuit board are collected by the filter frame 7, so as to prevent the impurities generated during the pickling process from falling into the pickling solution, and prevent the impurities from clogging the drain pipe 14, which can increase the number of times the pickling solution is used, and when pickling, the temperature of the pickling solution inside the pickling box 3 can be adjusted by starting the heating plate 16, and the temperature can be detected by the temperature detector 18, and the acid concentration in the pickling solution can be detected by the electronic pH detector 17, so as to ensure the processing quality and efficiency of the circuit board, and after a long period of pickling, the waste liquid can be discharged through the drain pipe 14.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A circuit board pickling device, characterized in that: The invention comprises a bottom plate (1), a mounting frame (2) is provided on the top of the bottom plate (1), a pickling box (3) is provided at the center of the mounting frame (2) on the top of the bottom plate (1), a telescopic rod (4) is provided on the top of the mounting frame (2), a storage frame (5) is provided at the telescopic end of the telescopic rod (4), a placement groove (6) is provided inside the storage frame (5), a filter frame (7) is provided on the outside of the storage frame (5), a fixing plate (10) is provided at the front and rear ends of the top of the bottom plate (1) corresponding to the mounting frame (2), a motor (11) is provided on the outside of one group of the fixing plates (10), a reciprocating screw rod (12) is provided between each two groups of corresponding fixing plates (10), and a liquid discharge pipe (14) is provided at the front end of the pickling box (3).

2. A circuit board pickling device according to claim 1, characterized in that: The front end of the filter frame (7) is hingedly mounted with a door body (8), the top of the filter frame (7) is fixedly connected to the top of the storage frame (5), connecting rods (9) are fixedly mounted at the four corners of the bottom of the storage frame (5), and one end of the connecting rod (9) away from the storage frame (5) is fixedly connected to the inner wall of the filter frame (7).

3. A circuit board pickling device according to claim 1, characterized in that: One end of one group of the reciprocating screw rods (12) extends to the outside of the fixed plate (10) and is fixedly connected to the output end of the motor (11), and a transmission belt (13) is installed between the two groups of the reciprocating screw rods (12).

4. A circuit board pickling device according to claim 1, characterized in that: The bottom of the mounting frame (2) is slidably mounted on the base plate (1) and is threadedly connected to the reciprocating screw rod (12). Support rods (19) are fixedly mounted at the four corners of the bottom of the base plate (1), and a valve body is fixedly mounted on the drainage pipe (14).

5. A circuit board pickling device according to claim 1, characterized in that: The heating plate (16) is fixedly installed at the bottom center of the pickling box (3), and the electronic pH detector (17) and the temperature detector (18) are respectively fixedly installed at the front end of the inner wall of the pickling box (3), and the heating plate (16), the electronic pH detector (17) and the temperature detector (18) are respectively electrically connected to the controller (15).

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