Circuit board drying device

Abstract

The utility model discloses a circuit board drying device. The circuit board drying device comprises a positioning base, a heat collecting box, a second limiting seat and a circuit board clamping module, wherein the heat collecting box is bolted to the upper surface of the positioning base; the second limiting seat is mounted in the heat collecting box; a heating box is movably installed on the upper portion of the positioning base and located in the heat collecting box. A plurality of air holes are formed in one side of the heat collecting box in a penetrating mode, baffles are movably installed on the sides, located on the air holes, of the heat collecting box, and a plurality of ventilation holes are formed in the positions, corresponding to the air holes, of the baffles in a penetrating mode. The use height of the heating box is controlled through an arranged electric push rod to dry and heat different circuit boards, the internal temperature of the heat collecting box is controlled through a temperature control module, a ventilation hole corresponds to a first limiting seat when a baffle moves, and the internal temperature of the heat collecting box is rapidly reduced to a stable level when a ventilation fan is started. Therefore, the stability and continuity of circuit board drying are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, and particularly relates to a circuit board drying device. Background Technique

[0002] When the circuit board horizontal line finally exits the board, it needs to be air-dried and combined. In order to avoid the problem that the copper surface has been oxidized due to direct hot air, the prior art mostly uses a hole-type air knife alone. The main function is to blow out the water in the holes to prevent new oxidation points from forming on the board surface during the hot air drying section. When the board is dried by cold air, the air from the air knife should blow onto the board first, so as to avoid oxidation points formed by water droplets in the holes on the board surface. However, if the hole density on the circuit board is greater than the air knife density, there will be an air-drying blind area.

[0003] For example, the patent publication number CN 213335426U discloses a circuit board drying device. A hot air blower is arranged at the upper end of the drying box. A wind pipe is arranged at the lower end of the hot air blower. The lower end of the wind pipe penetrates into the drying box. Air outlets are arranged on the outer side of the wind pipe. A placement plate is arranged in the drying box. Through holes are arranged on the placement plate. One end of the placement plate is provided with a first rotating rod. One end of the first rotating rod penetrates through the drying box and is connected with a first limiting block. The outer surface of the first limiting block is rotatably connected to the outer surface of the drying box. The other end of the placement plate is provided with a second rotating rod. This drying device can fully and quickly dry the circuit board; this drying device can limit circuit boards of different lengths and thicknesses, making it convenient to rotate and dry the circuit board, and it is convenient and flexible to use;

[0004] The above-mentioned patent still has some problems when in use. During the use process, it is impossible to continuously dry and process the circuit board, which cannot meet the processing requirements of large-scale production of circuit boards. It is necessary to continuously perform drying and alternating processing on the circuit board, which greatly affects the drying efficiency. Therefore, a circuit board drying device is needed now. Content of the Utility Model

[0005] The purpose of the utility model is to provide a circuit board drying device, which completes the automatic drying and loading and unloading of the circuit board through the cooperation of the clamping plate closing controller and the clamping plate opening controller, improving the convenience and continuity of the device use, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A circuit board drying device, including a positioning base, a heat collecting box bolted to the upper surface of the positioning base, a second limiting seat installed inside the heat collecting box, and a circuit board clamping module meshingly installed inside the second limiting seat;

[0007] The upper part of the positioning base is movably installed with a heating box, and the heating box is arranged inside the heat collecting box;

[0008] On one side of the heat - collecting box, a number of groups of air holes are penetrated. A baffle is movably installed on one side of the heat - collecting box corresponding to the air holes. A number of groups of air - exchange holes are penetrated through the baffle corresponding to the positions of the air holes.

[0009] The second limiting seat is a closed annular structure. One side of the second limiting seat is inside the heat - collecting box, and the other side is outside the heat - collecting box. At the upper parts of both ends of the second limiting seat, servo motors are installed. The output ends of the servo motors are key - connected with control gears, and the control gears are meshed and installed with the circuit - board clamping module.

[0010] The circuit - board clamping module includes a connecting chain for mutual connection, a trigger installed at the bottom of the connecting chain, and a clamping plate electrically connected to the trigger.

[0011] At one end of the surface of the second limiting seat outside the heat - collecting box, a clamping - plate closing controller is installed, and at the other end of the surface of the second limiting seat outside the heat - collecting box, a clamping - plate opening controller is installed.

[0012] Preferably, a number of groups of electric push rods are equidistantly installed inside the positioning base. The telescopic tops of the electric push rods extend from the upper surface of the positioning base and are bolted to the lower surface of the heating box. Two air boxes are symmetrically communicated and installed on both sides of the heating box.

[0013] Preferably, a ventilation fan is penetrated and installed on the upper surface of the heat - collecting box. Two driving boxes are symmetrically installed on one side of the heat - collecting box corresponding to the air holes. Two first limiting seats are symmetrically installed up and down between the two driving boxes. A ball screw is installed inside each of the first limiting seats.

[0014] Preferably, a temperature - control module is penetrated and installed on the upper surface of the heat - collecting box. One control end of the temperature - control module is connected to the ventilation fan, and the other control end of the temperature - control module is electrically connected to the driving box.

[0015] Preferably, two limiting plates are symmetrically installed on the upper and lower sides of the baffle. Each limiting plate is slidably installed inside the corresponding first limiting seat on the corresponding side, and the ball screw is installed in cooperation with the corresponding limiting plate.

[0016] Preferably, two connecting plates are symmetrically bolted to the upper surface of the second limiting seat inside the heat - collecting box, and the two connecting plates are respectively bolted to one side surface of the heat - collecting box.

[0017] Preferably, two support frames are symmetrically bolted to the outer arc surface of the servo motor. The end of each support frame is bolted to the upper surface of the second limiting seat in a fitting manner. A linkage window is penetrated through the inner arc surface of the second limiting seat corresponding to the position of the control gear, and the control gear extends into the inside of the second limiting seat from inside the linkage window.

[0018] Preferably, a first positioning plate is bolted and installed outside the clamping plate closing controller. A first electric control box is installed at the bottom of the first positioning plate. A first positioning box is electrically connected and installed at one end of the first electric control box. A chute is provided on the upper surface of the first positioning box. A first L-shaped push plate is slidably installed at a position corresponding to the chute on the upper surface of the first positioning box. A first placement plate is fixedly installed outside the first positioning box. A number of groups of first auxiliary rollers are rotatably installed on the upper surface of the first placement plate.

[0019] Preferably, a second positioning plate is installed outside the clamping plate opening controller. A second electric control box is installed at the bottom of the second positioning plate. A second positioning box is electrically connected and installed at one end of the second electric control box. A second L-shaped push plate is slidably installed on the upper part of the second positioning box. A second placement plate is installed on one side of the second positioning box. A number of groups of second auxiliary rollers are rotatably installed on the upper surface of the second placement plate.

[0020] Preferably, the position where the first auxiliary rollers are installed on the upper surface of the first placement plate corresponds to the position where the chute is opened. The position where the second auxiliary rollers are installed on the upper surface of the second placement plate is opposite to the sliding position of the second L-shaped push plate.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] By setting the electric push rod to control the use height of the heating box, different circuit boards are dried and heated. The temperature inside the heat accumulation box is controlled by the temperature control module. When the baffle moves, the ventilation holes correspond to the first limit seat, and when the ventilation fan is turned on, the temperature inside the heat accumulation box quickly drops to a stable level to ensure the stability and continuity of drying the circuit board. The servo motor is set to control the rotation of the control gear so that the circuit board clamping module circulates inside the second limit seat, enabling the circuit board to stably pass through the inside of the heat accumulation box for drying treatment. At the same time, the clamping plate closing controller and the clamping plate opening controller are used in conjunction with the circuit board clamping module, enabling the clamping plate to be controlled to clamp or release the circuit board, realizing the automatic operation of taking and placing the circuit board, and greatly improving the continuity and stability of circuit board drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is an exploded view of the installation structure of the heat accumulation box of the present utility model;

[0025] Figure 3 It is an exploded view of the installation structure of the heating box of the present utility model;

[0026] Figure 4 It is an exploded view of the installation structure of the baffle of the present utility model;

[0027] Figure 5Schematic diagram of the installation structure of the servo motor of the present utility model;

[0028] Figure 6 Exploded view of the installation structure of the circuit board clamping module of the present utility model;

[0029] Figure 7 Schematic diagram of the overall structure of the circuit board clamping module of the present utility model;

[0030] Figure 8 Schematic diagram of the overall structure of the clamping plate closing controller of the present utility model;

[0031] Figure 9 Schematic diagram of the overall structure of the clamping plate opening controller of the present utility model.

[0032] In the figure: 1, positioning base; 2, electric push rod; 3, heating box; 4, air box; 5, heat accumulation box; 6, exhaust fan; 7, temperature control module; 8, drive box; 9, first limit seat; 10, air hole; 11, baffle; 12, limit plate; 13, air exchange hole; 14, second limit seat; 15, connecting plate; 16, linkage window; 17, support frame; 18, servo motor; 19, control gear; 20, circuit board clamping module; 21, connecting chain; 22, trigger; 23, clamping plate; 24, clamping plate closing controller; 25, first positioning plate; 26, first electric control box; 27, first positioning box; 28, chute; 29, first L-shaped push plate; 30, first placement plate; 31, first auxiliary roller; 32, clamping plate opening controller; 33, second positioning plate; 34, second electric control box; 35, second positioning box; 36, second L-shaped push plate; 37, second placement plate; 38, second auxiliary roller; 39, circuit board. Specific implementation manner

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] The present utility model provides: a circuit board drying device, as Figures 1-9As shown in the figure, it includes a positioning base 1, a heat collecting box 5 bolted to the upper surface of the positioning base 1, a second limiting seat 14 installed inside the heat collecting box 5, and a circuit board clamping module 20 meshingly installed inside the second limiting seat 14; a heating box 3 is movably installed on the upper part of the positioning base 1, and the heating box 3 is arranged inside the heat collecting box 5; a plurality of groups of air holes 10 are penetrated and opened on one side of the heat collecting box 5, and a baffle 11 is movably installed on the heat collecting box 5 on the side of the air holes 10, and a plurality of groups of air exchange holes 13 are penetrated and opened on the baffle 11 corresponding to the position of the air holes 10;

[0035] The second limiting seat 14 is a closed annular structure. One side of the second limiting seat 14 is located inside the heat collecting box 5, and the other side of the second limiting seat 14 is located outside the heat collecting box 5. Servo motors 18 are installed on the upper parts of both ends of the second limiting seat 14. A control gear 19 is key-connected to the output end of the servo motor 18, and the control gear 19 is meshingly installed with the circuit board clamping module 20; the circuit board clamping module 20 includes a connecting chain 21 for connecting with each other, a trigger 22 installed at the bottom of the connecting chain 21, and a clamping plate 23 electrically connected to the trigger 22; a clamping plate closing controller 24 is installed at one end of the surface of the second limiting seat 14 outside the heat collecting box 5, and a clamping plate opening controller 32 is installed at the other end of the surface of the second limiting seat 14 outside the heat collecting box 5.

[0036] Preferably, a plurality of groups of electric push rods 2 are equidistantly installed inside the positioning base 1. The telescopic top ends of the electric push rods 2 extend from the upper surface of the positioning base 1 and are bolted to the lower surface of the heating box 3. Two air boxes 4 are symmetrically connected and installed on both sides of the heating box 3. The electric push rods 2 installed inside the positioning base 1 are used to push the heating box 3 to lift, so as to control the use height of the heating box 3, so as to dry circuit boards of different specifications. At the same time, the air boxes 4 arranged on both sides of the heating box 3 can stably and quickly send out the hot air inside the heating box 3, further improving the drying effect of the hot air on the circuit board and ensuring the stability of the drying process.

[0037] Furthermore, a ventilation fan 6 is penetrated and installed on the upper surface of the heat collecting box 5. Two driving boxes 8 are symmetrically installed on the heat collecting box 5 on the side of the air holes 10, and two first limiting seats 9 are symmetrically installed up and down between the two driving boxes 8. A ball screw is installed inside each first limiting seat 9. The ventilation fan 6 installed at the top of the heat collecting box 5 can control the temperature inside the heat collecting box 5, avoid damage to the circuit board caused by too high temperature inside the heat collecting box 5, and improve the drying quality of the circuit board. The opened air holes 10 can be used for emergency to accelerate air exchange and quickly reduce the temperature inside the heat collecting box 5.

[0038] Furthermore, a temperature control module 7 is installed on the upper surface of the heat collection box 5. One set of control ends of the temperature control module 7 is connected to the ventilation fan 6, and the other set of control ends of the temperature control module 7 is electrically connected to the drive box 8. The temperature control module 7 monitors the internal temperature of the heat collection box 5 through a thermometer. When the temperature is too high, the internal control chip of the temperature control module 7 is used to control the operation of the drive box 8 and the ventilation fan 6. The ball screw is controlled by the drive box 8 to move the baffle 11, so that the air hole 10 and the ventilation hole 13 slide correspondingly, so that external air can quickly enter the heat collection box 5 to reduce the internal temperature of the heat collection box 5 and improve the drying quality of the circuit board.

[0039] It is worth mentioning that two groups of limit plates 12 are symmetrically installed on the upper and lower sides of the baffle 11. Each group of limit plates 12 is slidably installed inside the first limit seat 9 on the corresponding side, and the ball screw is installed in conjunction with the corresponding limit plate 12. The limit plates 12 installed on the upper and lower sides of the baffle 11 slide inside the first limit seat 9, so that the baffle 11 will not separate from the outer surface of the heat collection box 5 during the movement, thereby improving the stability of the cooperation between the air hole 10 and the ventilation hole 13.

[0040] Specifically, two groups of connecting plates 15 are symmetrically bolted to the upper surface of the second limit seat 14 inside the heat collection box 5. The two groups of connecting plates 15 are bolted to the surface of one side of the heat collection box 5 respectively. The installed connecting plates 15 limit the second limit seat 14 so that one side of the second limit seat 14 is located outside the heat collection box 5 and the other side is located inside the heat collection box 5, thereby achieving the purpose of upper and lower circuit boards and drying the circuit boards.

[0041] In addition, two groups of support frames 17 are symmetrically bolted to the outer arc surface of the servo motor 18, and the end of each group of support frames 17 is bolted to the upper surface of the second limit seat 14. A linkage window 16 is opened on the inner arc surface of the second limit seat 14 corresponding to the position of the control gear 19. The control gear 19 extends into the second limit seat 14 from the inside of the linkage window 16. The support frame 17 limits the servo motor 18, and the servo motor 18 drives the circuit board clamping module 20 to rotate, thereby completing the transportation of the circuit board, and the linkage window 16 opened on the inner side of the second limit seat 14 can ensure that the control gear 19 extends out of the circuit board clamping module 20 to control the rotation of the circuit board clamping module 20. The circuit board clamping module 20 is formed by linking various groups of connecting chains 21, and the trigger 22 is used in conjunction with the splint closing controller 24 and the splint opening controller 32 to complete the control of the opening and closing of the splint 23, thereby completing the clamping and loosening of the circuit board.

[0042] It should be noted that a first positioning plate 25 is bolted and installed outside the clamping plate closing controller 24. A first electric control box 26 is installed at the bottom of the first positioning plate 25. A first positioning box 27 is electrically connected and installed at one end of the first electric control box 26. A chute 28 is provided on the upper surface of the first positioning box 27. A first L-shaped push plate 29 is slidably installed on the upper surface of the first positioning box 27 corresponding to the position of the chute 28. A first placing plate 30 is fixedly installed outside the first positioning box 27. A number of groups of first auxiliary rollers 31 are rotatably installed on the upper surface of the first placing plate 30. A second positioning plate 33 is installed outside the clamping plate opening controller 32. A second electric control box 34 is installed at the bottom of the second positioning plate 33. A second positioning box 35 is electrically connected and installed at one end of the second electric control box 34. A second L-shaped push plate 36 is slidably installed on the upper part of the second positioning box 35. A second placing plate 37 is installed on one side of the second positioning box 35. A number of groups of second auxiliary rollers 38 are rotatably installed on the upper surface of the second placing plate 37. The position where the first auxiliary rollers 31 are installed on the upper surface of the first placing plate 30 corresponds to the position where the chute 28 is provided. The position where the second auxiliary rollers 38 are installed on the upper surface of the second placing plate 37 is opposite to the sliding position of the second L-shaped push plate 36. The clamping plate closing controller 24 and the clamping plate opening controller 32 respectively control the opening and closing of the clamping plate 23 for completing the loading and unloading of the circuit board. Both the clamping plate closing controller 24 and the clamping plate opening controller 32 can cooperate with the chip inside the trigger 22 for control. The provided first electric control box 26 and second electric control box 34 respectively control the first positioning box 27 and the second positioning box 35 to drive the control push rods inside them to pull or push the first L-shaped push plate 29 and the second L-shaped push plate 36. Moreover, the installation positions of the provided first auxiliary rollers 31 and second auxiliary rollers 38 are different, which can more stably limit the incoming and outgoing circuit boards for control, improving the stability and safety of the device during use.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board drying device, characterized in that: It includes a positioning base (1), a heat accumulation box (5) bolted to the upper surface of the positioning base (1), a second limiting seat (14) installed inside the heat accumulation box (5), and a circuit board clamping module (20) meshingly installed inside the second limiting seat (14); A heating box (3) is movably installed on the upper part of the positioning base (1), and the heating box (3) is arranged inside the heat accumulation box (5); A number of groups of air holes (10) are penetrated and opened on one side of the heat accumulation box (5), a baffle (11) is movably installed on the side of the heat accumulation box (5) where the air holes (10) are located, and a number of groups of air exchange holes (13) are penetrated and opened on the baffle (11) corresponding to the positions of the air holes (10); The second limiting seat (14) is a closed annular structure, one side of the second limiting seat (14) is located inside the heat accumulation box (5), the other side of the second limiting seat (14) is located outside the heat accumulation box (5), servo motors (18) are installed on the upper parts of both ends of the second limiting seat (14), a control gear (19) is key-connected to the output end of the servo motor (18), and the control gear (19) is meshingly installed with the circuit board clamping module (20); The circuit board clamping module (20) includes a connecting chain (21) for mutual connection, a trigger (22) installed at the bottom of the connecting chain (21), and a clamping plate (23) electrically connected to the trigger (22); A clamping plate closing controller (24) is installed at one end of the surface of the second limiting seat (14) outside the heat accumulation box (5), and a clamping plate opening controller (32) is installed at the other end of the surface of the second limiting seat (14) outside the heat accumulation box (5).

2. The circuit board drying device according to claim 1, characterized in that: A number of groups of electric push rods (2) are equidistantly installed inside the positioning base (1), the telescopic top ends of the electric push rods (2) extend out from the upper surface of the positioning base (1) and are bolted to the lower surface of the heating box (3), and two wind boxes (4) are symmetrically connected and installed on both sides of the heating box (3).

3. The circuit board drying device according to claim 2, characterized in that: A ventilation fan (6) is penetrated and installed on the upper surface of the heat accumulation box (5), two driving boxes (8) are symmetrically installed on the side of the heat accumulation box (5) where the air holes (10) are located, and two first limiting seats (9) are symmetrically installed up and down between the two driving boxes (8), and a ball screw is installed inside each of the first limiting seats (9).

4. The circuit board drying device according to claim 3, characterized in that: A temperature control module (7) is penetrated and installed on the upper surface of the heat accumulation box (5), one control end of the temperature control module (7) is connected to the ventilation fan (6), and the other control end of the temperature control module (7) is electrically connected to the driving box (8).

5. The drying device for circuit boards according to claim 4, wherein: Two limiting plates (12) are symmetrically installed on the upper and lower sides of the baffle (11), each of the limiting plates (12) is slidably installed inside the corresponding first limiting seat (9), and the ball screw is cooperatively installed with the corresponding limiting plate (12).

6. The drying device for circuit boards according to claim 5, wherein: Two connecting plates (15) are symmetrically bolted to the upper surface of the second limiting seat (14) inside the heat accumulation box (5), and the two connecting plates (15) are respectively bolted to one side surface of the heat accumulation box (5).

7. A circuit board drying device according to claim 6, characterized in that: Two sets of support frames (17) are symmetrically bolted and installed on the outer arc surface of the servo motor (18). The end of each set of support frames (17) is bolted and installed in contact with the upper surface of the second limit seat (14). A linkage window (16) is penetrated and opened on the inner arc surface of the second limit seat (14) corresponding to the position of the control gear (19). The control gear (19) extends into the inside of the second limit seat (14) from the inside of the linkage window (16).

8. The circuit board drying device according to claim 7, characterized in that: A first positioning plate (25) is bolted and installed on the outside of the clamping plate closing controller (24). A first electric control box (26) is installed at the bottom of the first positioning plate (25). A first positioning box (27) is electrically connected and installed at one end of the first electric control box (26). A chute (28) is opened on the upper surface of the first positioning box (27). A first L-shaped push plate (29) is slidably installed on the upper surface of the first positioning box (27) corresponding to the position of the chute (28). A first placing plate (30) is fixedly installed on the outside of the first positioning box (27). A number of first auxiliary rollers (31) are rotatably installed on the upper surface of the first placing plate (30).

9. The circuit board drying device according to claim 8, wherein: A second positioning plate (33) is installed on the outside of the clamping plate opening controller (32). A second electric control box (34) is installed at the bottom of the second positioning plate (33). A second positioning box (35) is electrically connected and installed at one end of the second electric control box (34). A second L-shaped push plate (36) is slidably installed on the upper part of the second positioning box (35). A second placing plate (37) is installed on one side of the second positioning box (35). A number of second auxiliary rollers (38) are rotatably installed on the upper surface of the second placing plate (37).

10. A circuit board drying device according to claim 9, characterized in that: The position where the first auxiliary roller (31) is installed on the upper surface of the first placing plate (30) corresponds to the position where the chute (28) is opened. The position where the second auxiliary roller (38) is installed on the upper surface of the second placing plate (37) is opposite to the sliding position of the second L-shaped push plate (36).

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