Automatic drying equipment for circuit board

Abstract

The utility model relates to the technical field of circuit board production, and discloses circuit board automatic drying equipment which comprises a cabinet body, a motor is fixedly connected to the upper end of the cabinet body, the output end of the motor extends into the cabinet body and is fixedly connected with a connecting piece, and the lower end of the connecting piece is connected with a mounting piece through a bolt and a nut. The lower end of the mounting part is fixedly connected with a mounting pipe, and the surface of the mounting pipe is fixedly connected with three funnel-shaped trays which are distributed in a linear array. According to the automatic drying equipment for the circuit board, liquid on the surface of the circuit board drips into the funnel-shaped tray under the action of gravity, and the bottom of the funnel-shaped tray is funnel-shaped, so that the liquid flows to the lower end of the funnel-shaped tray under the action of gravity and then flows into the mounting pipe through the liquid inlet hole; the liquid on the upper layer circuit board can be prevented from dripping on the lower layer circuit board in the drying process, and the liquid on the surface of the lower layer circuit board is prevented from increasing.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board production, and specifically to automatic drying equipment for circuit boards. Background Art

[0002] Before soldering the circuit board, the surface of the circuit board needs to be cleaned. After cleaning, the liquid attached to the surface needs to be dried so as not to affect the subsequent coating of solder paste.

[0003] An existing patent (publication number: CN208128650U) discloses a circuit board drying and deodorizing device. This device primarily addresses the inability of existing circuit board drying devices to remove odors. The device comprises a housing with a drying chamber, the bottom of which is equipped with support legs equipped with rollers. The drying chamber is divided into an ozone generating chamber and a drying chamber by a partition. The ozone generating chamber houses an ozone generator, and above the ozone generating chamber is an air inlet equipped with a fan. Several fixed plates are fixed at equal intervals to the two side walls of the drying chamber, and above these plates are movable racks. A heating device is installed on the side walls above each rack. By installing an ozone generator, this utility model can remove odors and bacteria from the circuit boards before drying, reducing the risk of harmful substances being inhaled by workers and improving their physical and mental health.

[0004] The above patent points out that a placement rack of a circuit board drying and deodorizing device is provided with a grid. When in use, the circuit board is placed inside the placement rack. However, after the circuit board is placed, the liquid on the surface of the circuit board will drip downward under the action of gravity, and then fall through the grid onto the circuit board below, thereby increasing the amount of liquid on the surface of the lower circuit board. As a result, during the drying process, the drying degrees of the upper and lower circuit boards are inconsistent, and the drying time of the lower circuit board will increase, resulting in lower work efficiency. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present application provides an automatic drying equipment for circuit boards, which has the advantages of high efficiency, etc., and solves the problem that the placement rack in the circuit board drying and deodorization device is provided with a grid. When in use, the circuit board is placed inside the placement rack, but after the circuit board is placed, the liquid on the surface of the circuit board will drip downward under the action of gravity, and then fall through the grid onto the circuit board below, thereby increasing the liquid on the surface of the lower circuit board, and then during the drying process, the drying degree of the upper and lower circuit boards is inconsistent, and the drying time of the lower circuit board will be increased, resulting in low work efficiency.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: automatic drying equipment for circuit boards, including a cabinet, wherein a motor is fixedly connected to the upper end of the cabinet, the output end of the motor extends into the interior of the cabinet and is fixedly connected to a connecting piece, the lower end of the connecting piece is connected to a mounting piece by a bolt and a nut, the lower end of the mounting piece is fixedly connected to a mounting tube, three funnel-shaped trays distributed in a linear array are fixedly connected to the surface of the mounting tube, a fixing frame is fixedly connected to the interior of the funnel-shaped tray, a plurality of lower mounting troughs distributed in a circular array are fixedly connected to the upper end of the fixing frame, and three groups of liquid inlet holes distributed in a linear array and located inside the funnel-shaped tray are provided on the side wall of the mounting tube, wherein each group consists of two liquid inlet holes distributed in a mirror image.

[0007] Through the above scheme, a funnel-shaped tray is provided on the surface of the mounting tube, and a liquid inlet hole is opened on the side wall of the mounting tube inside the funnel-shaped tray. When in use, the circuit board is inserted between the upper mounting trough body and the lower mounting trough body. At this time, the circuit board is in a vertical state, and the liquid on the surface of the circuit board will drip into the funnel-shaped tray under the action of gravity. Because the bottom of the funnel-shaped tray is funnel-shaped, the liquid will flow to the lower end of the funnel-shaped tray under the action of gravity, and then flow into the interior of the mounting tube through the liquid inlet hole. This can prevent the liquid on the upper circuit board from dripping onto the lower circuit board during the drying process, so that the amount of liquid on the surface of the lower circuit board increases, thereby ensuring that the drying effect of each layer of the circuit board is consistent, shortening the drying time, and improving production efficiency.

[0008] Furthermore, three mounting plates distributed in a linear array and corresponding to the funnel-shaped tray are fixedly connected to the surface of the mounting tube. The mounting plate is located above the funnel-shaped tray, and the lower end of the mounting plate is fixedly connected to a plurality of upper mounting troughs distributed in a circular array and corresponding to the lower mounting troughs.

[0009] Through the above solution, the upper mounting groove corresponds to the lower mounting groove and is used to support the circuit board.

[0010] Furthermore, the funnel-shaped tray and the surface of the mounting plate are both fixedly connected with a second fixing plate, and the second fixing plate is internally threadedly connected with a threaded rod.

[0011] According to the above solution, when the threaded rod is rotated during use, the threaded rod will move inside the second fixing plate because the threaded rod is threadedly connected to the second fixing plate. Therefore, when the threaded rod is rotated, the threaded rod will move inside the second fixing plate.

[0012] Furthermore, one end of the threaded rod is rotatably connected to a second push plate, and one end of the second push plate is fixedly connected to a limiting ring.

[0013] Through the above scheme, by rotating the threaded rod, the threaded rod will drive the second push plate to move, thereby driving the limit ring to move until the inner side of the limit ring contacts the lower mounting groove or one end of the upper mounting groove. At this time, the circuit board will be limited to prevent the circuit board from sliding out of the upper mounting groove and the lower mounting groove.

[0014] Furthermore, a first push plate is fixedly connected to one side of the surface of the limiting ring, a guide column is fixedly connected to the surface of the first push plate, and the funnel-shaped tray and the mounting plate surface are both fixedly connected to the first fixed plate on one side, and one end of the guide column passes through the first fixed plate and is slidably connected to the first fixed plate.

[0015] Through the above solution, one end of the guide column passes through the first fixed plate and is slidably connected to the first fixed plate, which can ensure that the first push plate maintains a stable path or direction when moving.

[0016] Furthermore, a plurality of ventilation holes are provided on both sides of the cabinet, mounting frames are fixedly connected to both sides of the interior of the cabinet, and a heating plate is fixedly connected to the interior of the mounting frames.

[0017] Through the above solution, the heating plate is a key component of the drying equipment, which is used to provide the necessary heat to dry the circuit boards. By fixing the heating plate on the mounting frame, it can be ensured that it maintains a stable position and temperature distribution during the drying process.

[0018] Furthermore, two groups of fans distributed in a mirror image are fixedly connected to the surface of the mounting frame, wherein each group consists of three fans distributed in a linear array.

[0019] Through the above solution, the fan can blow the hot air inside the cabinet to the circuit board, helping to accelerate the evaporation of moisture, thereby improving the drying efficiency. At the same time, the fan also helps to distribute the heat generated by the heating plate more evenly inside the cabinet, ensuring that the circuit board is evenly heated.

[0020] Furthermore, the cabinet surface is rotatably connected to a cabinet door via a hinge.

[0021] Through the above solution, when the cabinet door is closed, the internal space of the cabinet can be effectively sealed to prevent external dust, moisture, etc. from entering, thereby protecting the internal circuit boards from contamination. At the same time, the cabinet door can also play a role in insulation, reducing heat loss during the drying process.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] The automatic circuit board drying equipment is provided with a funnel-shaped tray on the surface of a mounting tube, and a liquid inlet hole is opened on the side wall of the mounting tube and inside the funnel-shaped tray. When in use, the circuit board is inserted between the upper mounting trough body and the lower mounting trough body. At this time, the circuit board is in a vertical state, and the liquid on the surface of the circuit board will drip into the funnel-shaped tray under the action of gravity. Because the bottom of the funnel-shaped tray is funnel-shaped, the liquid will flow to the lower end of the funnel-shaped tray under the action of gravity, and then flow into the mounting tube through the liquid inlet hole. This can prevent the liquid on the upper circuit board from dripping onto the lower circuit board during the drying process, so that the liquid on the surface of the lower circuit board increases, thereby ensuring the uniform drying effect of each layer of the circuit board, shortening the drying time, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the installation structure of the mounting frame for this application;

[0026] Figure 3 This is a schematic diagram of the heating plate installation structure for this application;

[0027] Figure 4 This is a cross-sectional view of the installation structure of the limit ring of this application;

[0028] Figure 5 for Figure 2 A magnified view of the structure at center A.

[0029] In the picture:

[0030] 1. Cabinet body; 2. Cabinet door; 3. Ventilation hole; 4. Mounting bracket; 5. Heating plate; 6. Fan; 7. Motor; 8. Connector; 9. Mounting pipe; 10. Liquid inlet hole; 11. Funnel-shaped tray; 12. Fixing bracket; 13. Lower mounting trough; 14. Mounting plate; 15. Upper mounting trough; 16. First fixing plate; 17. Guide column; 18. First push plate; 19. Second fixing plate; 20. Threaded rod; 21. Second push plate; 22. Limiting ring; 23. Mounting parts. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] See also Figure 1 、 Figure 2 and Figure 5The automatic circuit board drying equipment in this embodiment includes a cabinet 1, the upper end of the cabinet 1 is fixedly connected to a motor 7, the output end of the motor 7 extends into the interior of the cabinet 1 and is fixedly connected to a connecting member 8, the lower end of the connecting member 8 is connected to a mounting member 23 by a bolt and a nut, the lower end of the mounting member 23 is fixedly connected to a mounting tube 9, the surface of the mounting tube 9 is fixedly connected to three funnel-shaped trays 11 distributed in a linear array, the funnel-shaped tray 11 is fixedly connected to a fixing frame 12, the upper end of the fixing frame 12 is fixedly connected to a plurality of lower mounting grooves 13 distributed in a circumferential array, the side wall of the mounting tube 9 is provided with three groups of liquid inlet holes 10 distributed in a linear array and located inside the funnel-shaped tray 11, wherein each group consists of two liquid inlet holes 10 distributed in a mirror image, and the surface of the cabinet 1 is rotatably connected to a cabinet door 2 by a hinge. When the cabinet door 2 is closed, the internal space of the cabinet 1 can be effectively sealed to prevent external dust, moisture, etc. from entering, thereby protecting the internal circuit boards from pollution. At the same time, the cabinet door 2 can also play a role in heat preservation, reducing heat loss during the drying process.

[0033] See also Figure 2 、 Figure 4 and Figure 5 , the surface of the mounting tube 9 is fixedly connected with three mounting plates 14 distributed in a linear array and corresponding to the funnel-shaped tray 11, the mounting plate 14 is located above the funnel-shaped tray 11, and the lower end of the mounting plate 14 is fixedly connected with a plurality of upper mounting grooves 15 distributed in a circumferential array and corresponding to the lower mounting groove 13, the upper mounting grooves 15 correspond to the lower mounting grooves 13, and are used to support the circuit board. The funnel-shaped tray 11 and the mounting plate 14 are both fixedly connected with a second fixing plate 19, and the second fixing plate 19 is internally threadedly connected with a threaded rod 20. When the threaded rod 20 is rotated in use, because the threaded rod 20 is threadedly connected to the second fixing plate 19, the threaded rod 20 will move inside the second fixing plate 19 when the threaded rod 20 is rotated. One end of the threaded rod 20 is rotatably connected to a second push plate 21, and one end of the second push plate 21 is fixedly connected The limiting ring 22 rotates the threaded rod 20, and the threaded rod 20 will drive the second push plate 21 to move, thereby driving the limiting ring 22 to move until the inner side of the limiting ring 22 contacts the lower mounting groove 13 or one end of the upper mounting groove 15. At this time, the circuit board will be limited to prevent the circuit board from sliding out of the upper mounting groove 15 and the lower mounting groove 13. One side of the surface of the limiting ring 22 is fixedly connected to the first push plate 18, and the surface of the first push plate 18 is fixedly connected to the guide column 17. The funnel-shaped tray 11 and one side of the surface of the mounting plate 14 are both fixedly connected to the first fixed plate 16. One end of the guide column 17 passes through the first fixed plate 16 and is slidably connected between the first fixed plate 16. One end of the guide column 17 passes through the first fixed plate 16 and is slidably connected between the first fixed plate 16, which can ensure that the first push plate 18 maintains a stable path or direction when moving.

[0034] See also Figure 1 、 Figure 2 and Figure 3 , multiple ventilation holes 3 are opened on both sides of the cabinet 1, and mounting brackets 4 are fixedly connected on both sides of the interior of the cabinet 1. A heating plate 5 is fixedly connected inside the mounting bracket 4. The heating plate 5 is a key component of the drying equipment and is used to provide the necessary heat to dry the circuit boards. By fixing the heating plate 5 on the mounting bracket 4, it can be ensured that it maintains a stable position and temperature distribution during the drying process. Two groups of fans 6 distributed in a mirror image are fixedly connected to the surface of the mounting bracket 4, each group consisting of three fans 6 distributed in a linear array. The fans 6 can blow the hot air inside the cabinet 1 to the circuit boards, helping to accelerate the evaporation of moisture, thereby improving the drying efficiency. At the same time, the fans 6 also help to distribute the heat generated by the heating plate 5 more evenly to the interior of the cabinet 1, ensuring that the circuit boards are evenly heated.

[0035] The working principle of the above embodiment is:

[0036] Open the cabinet door 2, check whether the inside of the equipment is clean and ensure that there is no debris that affects the drying effect. Insert one end of the circuit board between the upper mounting groove 15 and the lower mounting groove 13 to ensure that the circuit board is in a vertical state. As needed, the position of the circuit board can be adjusted to make it evenly distributed inside the equipment. Then, rotate the threaded rod 20 to move the threaded rod 20 inside the second fixing plate 19. The threaded rod 20 will drive the second push plate 21 to move, thereby driving the limit ring 22 to move. Adjust the position of the limit ring 22 until its inner side lightly contacts one end of the circuit board to limit the circuit board. Close the cabinet door 2 and start the equipment. Close the cabinet door 2 to ensure that the circuit board is in a vertical state. Ensure that the interior of the equipment is closed, start the motor 7, and start the components such as the connector 8 and the mounting tube 9 to work, driving the circuit board to rotate so that each circuit board can be heated evenly, which can ensure that the drying degree of the circuit board is consistent. At the same time, the heating plate 5 starts heating and the fan 6 starts blowing. The fan 6 blows hot air to the circuit board to accelerate the evaporation of moisture on the surface of the circuit board. At the same time, the liquid on the surface of the circuit board will drip into the funnel-shaped tray 11 under the action of gravity, and flow into the mounting tube 9 through the liquid inlet hole 10 to prevent the liquid on the upper circuit board from dripping onto the lower circuit board. After drying is completed, turn off the equipment, open the cabinet door 2, and take out the dried circuit board.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0038] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Automatic drying equipment for circuit boards, comprising a cabinet (1), characterized in that: The upper end of the cabinet (1) is fixedly connected to a motor (7), the output end of the motor (7) extends into the interior of the cabinet (1) and is fixedly connected to a connecting member (8), the lower end of the connecting member (8) is connected to a mounting member (23) via a bolt and a nut, the lower end of the mounting member (23) is fixedly connected to a mounting tube (9), the surface of the mounting tube (9) is fixedly connected to three funnel-shaped trays (11) distributed in a linear array, the interior of the funnel-shaped tray (11) is fixedly connected to a fixing frame (12), the upper end of the fixing frame (12) is fixedly connected to a plurality of lower mounting troughs (13) distributed in a circumferential array, and the side wall of the mounting tube (9) is provided with three groups of liquid inlet holes (10) distributed in a linear array and located inside the funnel-shaped tray (11), wherein each group consists of two liquid inlet holes (10) distributed in a mirror image.

2. The automatic circuit board drying equipment according to claim 1, characterized in that: The surface of the mounting tube (9) is fixedly connected to three mounting plates (14) distributed in a linear array and corresponding to the funnel-shaped tray (11); the mounting plates (14) are located above the funnel-shaped tray (11); and the lower end of the mounting plate (14) is fixedly connected to a plurality of upper mounting troughs (15) distributed in a circumferential array and corresponding to the lower mounting troughs (13).

3. The automatic circuit board drying equipment according to claim 2, characterized in that: The surfaces of the funnel-shaped tray (11) and the mounting plate (14) are both fixedly connected with a second fixing plate (19), and the interior of the second fixing plate (19) is threadedly connected with a threaded rod (20).

4. The automatic circuit board drying equipment according to claim 3, characterized in that: One end of the threaded rod (20) is rotatably connected to a second push plate (21), and one end of the second push plate (21) is fixedly connected to a limiting ring (22).

5. The automatic circuit board drying equipment according to claim 4, characterized in that: One side of the surface of the limiting ring (22) is fixedly connected to a first push plate (18), and the surface of the first push plate (18) is fixedly connected to a guide column (17). One side of the surface of the funnel-shaped tray (11) and the mounting plate (14) are both fixedly connected to a first fixed plate (16), and one end of the guide column (17) passes through the first fixed plate (16) and is slidably connected to the first fixed plate (16).

6. The automatic circuit board drying equipment according to claim 1, characterized in that: A plurality of ventilation holes (3) are provided on both sides of the cabinet (1), mounting frames (4) are fixedly connected to both sides of the interior of the cabinet (1), and a heating plate (5) is fixedly connected to the interior of the mounting frame (4).

7. The automatic circuit board drying equipment according to claim 6, characterized in that: Two groups of fans (6) distributed in a mirror image are fixedly connected to the surface of the mounting frame (4), wherein each group is composed of three fans (6) distributed in a linear array.

8. The automatic circuit board drying equipment according to claim 1, characterized in that: The surface of the cabinet body (1) is rotatably connected to a cabinet door (2) via a hinge.

Images