Uniform liquid treatment device for printed circuit board

Abstract

The utility model discloses a printed circuit board liquid homogenizing processing device which comprises a processing table and a liquid homogenizing processing mechanism located on the processing table, a first motor is horizontally installed on one side wall of the processing table, a top sliding groove is further formed in the processing table, an output shaft of the first motor is coaxially connected with a first screw rod, and the first screw rod is connected with a second screw rod. A movable seat is arranged on the first screw in a threaded and sleeving mode and attached to the bottom wall of the top sliding groove, the top of the movable seat extends out of the top sliding groove and is located above the machining table, an inverted-U-shaped support is welded to the movable seat, a second motor is horizontally installed on one side wall of the support, and a movable groove is formed in the bottom wall of the support; an output shaft of the second motor is coaxially connected with a second screw, and the thread rotating directions of the two ends of the second screw are opposite. According to the liquid uniformizing treatment device for the printed circuit board, the circuit board is fixed by the positioning seats on the two sides before liquid uniformizing, so that the circuit board is always kept in a stable state in the liquid uniformizing process, and the accuracy of the liquid uniformizing position is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of printed circuit board processing, in particular to a printed circuit board uniform liquid processing device. Background Art

[0002] A printed circuit board, also known as a printed circuit board, is a support for electronic components and a provider of circuit connections for electronic components. Because it is made using electronic printing technology, it is called a "printed" circuit board.

[0003] In the process of realizing the utility model, the inventor found that there are at least the following problems in the technology: in the process of processing the printed circuit board, it is necessary to apply liquid photoresist to the surface where the upper part of the circuit is located, and spread it evenly (i.e., homogenize the liquid). However, the current printed circuit board homogenization facilities (such as the patent with application number CN202222717570.5 - a printed circuit board homogenization processing device) usually do not pay attention to the positioning of the printed circuit board, resulting in the spraying and homogenization of the liquid photoresist. Due to the action of the nozzle or scraper, etc., the printed circuit board may be displaced, which leads to inaccurate homogenization position.

[0004] Therefore, we propose a printed circuit board liquid homogenization processing device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a printed circuit board liquid homogenization processing device, so that the circuit board is fixed by the positioning seats on both sides before the liquid is homogenized, so that it always maintains a stable state during the liquid homogenization process, thereby ensuring the accuracy of the liquid homogenization position, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A liquid homogenizing treatment device for a printed circuit board comprises a processing table and a liquid homogenizing treatment mechanism located on the processing table, wherein a first motor is horizontally mounted on a side wall of the processing table, wherein a top slide groove is formed on the processing table, an output shaft of the first motor is coaxially connected to a first screw rod, and a movable seat is threadedly sleeved on the first screw rod, the movable seat is in contact with the bottom wall of the top slide groove, and the top of the movable seat extends out of the top slide groove and is located above the processing table;

[0008] An inverted U-shaped bracket is welded on the movable seat, wherein a second motor is horizontally mounted on one side wall of the bracket, a movable groove is formed on the bottom wall of the bracket, the output shaft of the second motor is coaxially connected to a second screw, the threads at both ends of the second screw are in opposite directions, and upper slides are respectively threadedly sleeved on both ends of the second screw, the two upper slides are both fitted with the top wall of the movable groove, and the bottom walls of the two upper slides are fixedly connected with a positioning seat for positioning the printed circuit board;

[0009] The liquid homogenizing mechanism comprises a material box installed on the top wall of the processing table facing away from the first motor, a pump body installed on one side wall of the material box, an output pipe connected to the pump body and a scraper welded to one end of the output pipe.

[0010] As a preferred embodiment, the first screw is horizontally arranged in the top slide groove, and both ends of the first screw are rotatably connected to the processing table; so that the first screw can operate stably under the drive of the first motor.

[0011] As a preferred implementation scheme, the second screw is horizontally arranged in the movable groove, and both ends of the second screw are rotatably connected to the bracket; so that the second screw can operate stably under the drive of the second motor, and both the first motor and the second motor need to be powered by external power facilities.

[0012] As a preferred embodiment, two positioning seats are arranged facing each other, and L-shaped gaskets are fixedly bonded to the bottom of the two positioning seats; the gaskets can be made of rubber material, and setting the gaskets in L shape can fix the sides and top of the printed circuit board at the same time.

[0013] As a preferred embodiment, a adding pipe communicating with the inner cavity of the material box is fixedly connected to one side of the top wall of the material box, so that the liquid photoresist can be added into the material box through the adding pipe.

[0014] As a preferred embodiment, one end of the output pipe passes through the material box and enters the bottom of its inner cavity, and the other end thereof extends horizontally to the center position above the processing table; the scraper is fixed to one end of the output pipe near the center position above the processing table.

[0015] In summary, the technical effects and advantages of the utility model are as follows:

[0016] The printed circuit board liquid homogenization processing device drives the first screw rod to operate by the operation of the first motor, so that the movable seat drives the printed circuit board to move horizontally, and cooperates with the output tube and the scraper to spread the liquid photoresist on the surface of the circuit board. Since the circuit board has been fixed by the positioning seats on both sides before the liquid homogenization, it always keeps a stable state during the liquid homogenization process, thereby ensuring the accuracy of the liquid homogenization position;

[0017] The device for homogenizing liquid for printed circuit boards, when the printed circuit board moves to below one end of the output tube for spraying oil (liquid photoresist), causes the pump body to operate to extract the liquid photoresist in the material box and spray it from the end of the output tube onto the printed circuit board. At this time, the printed circuit board continues to move, so that the liquid photoresist on it can be scraped flat and spread by a scraper, thereby achieving the effect of spraying oil and homogenizing liquid at the same time. Since the printed circuit board is fixed by two positioning seats throughout the whole process, the effect of homogenizing liquid is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial cross-sectional view of one side of the utility model;

[0020] Figure 3 It is a partial cross-sectional view of the other side of the utility model.

[0021] In the figure: 1. processing table; 2. first motor; 3. top slide; 4. first screw; 5. movable seat; 6. bracket; 7. second motor; 8. movable slot; 9. second screw; 10. upper slide; 11. positioning seat; 12. gasket; 13. material box; 14. adding pipe; 15. pump body; 16. output pipe; 17. scraper. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 3 A printed circuit board liquid homogenizing treatment device comprises a processing table 1 and a liquid homogenizing treatment mechanism located on the processing table 1, a first motor 2 is horizontally installed on one side wall of the processing table 1, wherein a top slide groove 3 is also formed on the processing table 1, the output shaft of the first motor 2 is coaxially connected with a first screw 4, the first screw 4 is horizontally arranged in the top slide groove 3, and both ends of the first screw 4 are rotatably connected to the processing table 1, so that the first screw 4 can stably operate under the drive of the first motor 2, and a movable seat 5 is threadedly sleeved on the first screw 4, the movable seat 5 is in contact with the bottom wall of the top slide groove 3, and the top of the movable seat 5 extends out of the top slide groove 3 and is located above the processing table 1;

[0024] An inverted U-shaped bracket 6 is welded on the movable seat 5, wherein a second motor 7 is horizontally mounted on one side wall of the bracket 6, and a movable groove 8 is formed on the bottom wall of the bracket 6. The output shaft of the second motor 7 is coaxially connected with a second screw 9, which is horizontally arranged in the movable groove 8, and both ends of the second screw 9 are rotatably connected to the bracket 6, so that the second screw 9 can stably operate under the drive of the second motor 7. The first motor 2 and the second motor 7 both require power supply from external power facilities. The threads at both ends of the second screw 9 have opposite rotation directions, and both ends of the second screw 9 are respectively threadedly sleeved with upper slides 10, and the two upper slides 10 are both fitted with the top wall of the movable groove 8. Positioning seats 11 for positioning the printed circuit board are fixedly connected to the bottom walls of the two upper slides 10. The two positioning seats 11 are arranged opposite to each other, and the bottoms of the two positioning seats 11 are fixedly bonded with L-shaped gaskets 12, and the gasket 12 can be made of rubber material. Setting the gasket 12 into an L shape can fix the side and top of the printed circuit board at the same time;

[0025] The liquid homogenizing mechanism includes a material box 13 installed on the top wall of the processing table 1 facing away from the first motor 2, a pump body 15 installed on one side wall of the material box 13, an output pipe 16 connected to the pump body 15, and a scraper 17 welded to one end of the output pipe 16. A adding pipe 14 communicating with its inner cavity is fixedly connected to one side of the top wall of the material box 13, so that liquid photoresist can be added to the material box 13 through the adding pipe 14. One end of the output pipe 16 passes through the material box 13 and enters the bottom of its inner cavity, and the other end thereof extends horizontally to the center position above the processing table 1. The scraper 17 is fixed to one end of the output pipe 16 close to the center position above the processing table 1.

[0026] The printed circuit board liquid homogenization processing device: (the movable seat 5 is located on the side of the processing table 1 close to the first motor 2) firstly, the printed circuit board is placed at the center above the movable seat 5, and the second motor 7 is driven to drive the second screw 9 to operate, so that the two upper slides 10 are translated in opposite directions along the inner wall of the movable groove 8, and finally the two positioning seats 11 are driven to fix the printed circuit board, wherein the two ends of the printed circuit board are in close contact with the two gaskets 12 respectively; then the first motor 2 is driven to operate and drive the first screw 4 to operate, so that the movable seat 5 is translated along the inner wall of the top slide groove 3 and gradually Gradually approaching the output tube 16, when the printed circuit board moves to the bottom of one end of the output tube 16 for spraying oil (liquid photo solder resist), the pump body 15 is operated to extract the liquid photo solder resist in the material box 13 and spray it from the end of the output tube 16 and spray it on the printed circuit board. At this time, the printed circuit board continues to move, so that the liquid photo solder resist thereon can be scraped flat and spread by the scraper 17, thereby achieving the effect of spraying oil and homogenizing the liquid at the same time. Since the printed circuit board is fixed by the two positioning seats 11 throughout the whole process, the effect of homogenizing the liquid (accurate position of homogenizing the liquid) is guaranteed.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid homogenizing treatment device for a printed circuit board, comprising a processing table (1) and a liquid homogenizing treatment mechanism located on the processing table (1), characterized in that: A first motor (2) is horizontally mounted on one side wall of the processing table (1), wherein a top slide groove (3) is also formed on the processing table (1), the output shaft of the first motor (2) is coaxially connected to a first screw rod (4), and a movable seat (5) is threadedly sleeved on the first screw rod (4), and the movable seat (5) is in contact with the bottom wall of the top slide groove (3); An inverted U-shaped bracket (6) is welded on the movable seat (5), wherein a second motor (7) is horizontally mounted on one side wall of the bracket (6), a movable groove (8) is formed on the bottom wall of the bracket (6), and the output shaft of the second motor (7) is coaxially connected to a second screw rod (9), the threads at both ends of the second screw rod (9) are in opposite directions, and upper slides (10) are respectively threadedly sleeved on both ends of the second screw rod (9), the two upper slides (10) are both in contact with the top wall of the movable groove (8), and the bottom walls of the two upper slides (10) are fixedly connected to a positioning seat (11) for positioning a printed circuit board; The liquid homogenizing mechanism comprises a material box (13) mounted on the top wall of a processing table (1) facing away from the first motor (2), a pump body (15) mounted on a side wall of the material box (13), an output pipe (16) connected to the pump body (15), and a scraper (17) welded to one end of the output pipe (16).

2. A printed circuit board liquid homogenization treatment device according to claim 1, characterized in that: The first screw rod (4) is horizontally arranged in the top slide groove (3), and both ends of the first screw rod (4) are rotatably connected to the processing table (1).

3. A printed circuit board homogenous liquid processing device according to claim 1, characterized in that: The second screw rod (9) is horizontally arranged in the movable groove (8), and both ends of the second screw rod (9) are rotatably connected to the bracket (6).

4. A printed circuit board homogenous liquid processing device according to claim 1, characterized in that: The two positioning seats (11) are arranged facing each other, and L-shaped gaskets (12) are fixedly bonded to the bottoms of the two positioning seats (11).

5. A printed circuit board homogenous liquid processing device according to claim 1, characterized in that: One side of the top wall of the material box (13) is fixedly connected with a adding pipe (14) communicating with the inner cavity thereof.

6. A printed circuit board liquid homogenization treatment device according to claim 1, characterized in that: One end of the output pipe (16) passes through the material box (13) and enters the bottom of its inner cavity, and the other end thereof extends horizontally to the center position above the processing table (1).

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