Circuit board spraying device

Abstract

The utility model discloses a circuit board spraying device, which comprises a shell, a spraying mechanism, a first limiting plate, a second limiting plate, a rotating motor, a first clamping assembly and a second clamping assembly, and is characterized in that the shell comprises a first side plate and a second side plate which are oppositely arranged; the spraying mechanism is arranged in the shell and located between the first side plate and the second side plate. The first limiting plate is arranged close to one side, facing the second side plate, of the first side plate; the second limiting plate is arranged close to one side, facing the first side plate, of the second side plate, and the second limiting plate and the first limiting plate are oppositely arranged; the rotating motor is arranged on the side, facing the second limiting plate, of the first limiting plate. The first clamping assembly is arranged at the output end of the rotating motor; the second clamping assembly is rotationally arranged on the side, facing the first limiting plate, of the second limiting plate, and the second clamping assembly and the first clamping assembly are oppositely arranged. The circuit board spraying device can solve the problems that when an existing circuit board spraying device sprays conformal coating on a circuit board, operation is tedious, and efficiency is low.

Description

Technical Field

[0001] This application relates to the field of circuit board processing technology, and in particular to a circuit board spraying apparatus. Background Technology

[0002] Conformal coating is a specially formulated coating primarily used to protect circuit boards and related equipment from environmental corrosion, thereby extending their service life and ensuring their safety and reliability.

[0003] Existing circuit board coating equipment typically involves positioning the circuit board, applying conformal coating to one side, and then removing the circuit board after the coating has cured before coating the other side. This cumbersome process results in low coating efficiency. Utility Model Content

[0004] The main purpose of this application is to provide a circuit board spraying device, which aims to solve the problems of cumbersome operation and low efficiency of existing circuit board spraying devices when spraying conformal coating on circuit boards.

[0005] To achieve the above objectives, this application provides a circuit board spraying device, comprising: a housing, a spraying mechanism, a first limiting plate, a second limiting plate, a rotary motor, a first clamping assembly, and a second clamping assembly. The housing includes a first side plate and a second side plate disposed opposite to each other. The spraying mechanism is disposed within the housing and located between the first side plate and the second side plate. The first limiting plate is disposed near the side of the first side plate facing the second side plate. The second limiting plate is disposed near the side of the second side plate facing the first side plate, and the second limiting plate is disposed opposite to the first limiting plate. The rotary motor is disposed on the side of the first limiting plate facing the second limiting plate. The first clamping assembly is disposed at the output end of the rotary motor. The second clamping assembly is rotatably disposed on the side of the second limiting plate facing the first limiting plate, and the second clamping assembly is disposed opposite to the first clamping assembly.

[0006] Optionally, the first clamping assembly includes: a first plate, a plurality of springs, and a second plate, wherein the middle portion of the first plate is connected to the rotary motor; one end of the plurality of springs is connected to the side of the first plate facing the second clamping assembly; the second plate is connected to the other end of the plurality of springs; wherein the second clamping assembly has the same structure as the first clamping assembly.

[0007] Optionally, the first limiting plate has a mating groove on the side facing the second limiting plate, and the rotating motor is fixed in the mating groove; the second limiting plate has a moving block on the side facing the first limiting plate, and the second clamping assembly is rotatably mated on the moving block.

[0008] Optionally, the second clamping assembly has a rotating shaft at the center of the side opposite to the first clamping assembly, and the rotating shaft is rotatably connected to the moving block via a bearing.

[0009] Optionally, the circuit board spraying device further includes a horizontal displacement mechanism, wherein the horizontal displacement mechanism is disposed within the housing, and the horizontal displacement mechanism is used to drive the first limiting plate and the second limiting plate to move horizontally.

[0010] Optionally, the horizontal displacement mechanism includes: at least two conveyor rollers, a conveyor belt, a first motor base, and a first motor, wherein at least two of the conveyor rollers are rotatably disposed between the first side plate and the second side plate; the conveyor belt is disposed on the outer periphery of the conveyor rollers, and the first limiting plate and the second limiting plate are respectively disposed on both sides of the conveyor belt; the first motor base is disposed on the outer side of the first side plate or the second side plate; the first motor is fixed on the first motor base, and the output end of the first motor is connected to one of the conveyor rollers.

[0011] Optionally, each of the conveying rollers is rotatably coupled to the first side plate via a bearing, and each of the conveying rollers is rotatably coupled to the second side plate via a bearing.

[0012] Optionally, the spraying mechanism includes: a lead screw, a light shaft, a spraying machine, a second motor base, and a second motor, wherein the lead screw is rotatably engaged between the first side plate and the second side plate; the light shaft is fixed between the first side plate and the second side plate; the spraying machine is threaded onto the lead screw and slidably engaged onto the light shaft; the second motor base is disposed on the outside of the first side plate or the second side plate; the second motor is fixed on the second motor base, and the output end of the second motor is connected to one end of the lead screw.

[0013] Optionally, the housing also includes a top plate, on the side of the top plate facing the spraying mechanism, a plurality of drying fans are provided.

[0014] Optionally, the housing further includes a third side plate and a fourth side plate, wherein the third side plate is disposed at the end of the first side plate and the second side plate, the third side plate is hinged to the end of the first side plate or the second side plate, and an observation hole is provided on the third side plate; the fourth side plate is disposed at the end of the first side plate and the second side plate, and is disposed opposite to the third side plate.

[0015] This application discloses a circuit board coating apparatus. When coating a circuit board, the circuit board to be coated with conformal coating is first clamped between a first clamping assembly and a second clamping assembly. Then, the coating mechanism is activated to coat the circuit board with conformal coating. After one side of the circuit board is coated, a rotating motor is activated to rotate the circuit board 180°. Finally, the coating mechanism is activated again to coat the back of the circuit board with conformal coating, thus completing the conformal coating process. After one side of the circuit board is coated, it is no longer necessary to remove the circuit board, flip it over, and reinstall it on the circuit board coating apparatus for conformal coating, greatly simplifying the conformal coating process and improving the coating efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a circuit board spraying device provided in an embodiment of this application;

[0017] Figure 2 for Figure 1 The front view with the third side panel removed;

[0018] Figure 3 for Figure 2 Enlarged view of part A;

[0019] Figure 4 for Figure 2 A structural diagram from another perspective.

[0020] In the diagram, 1. Shell; 101. First side plate; 102. Second side plate; 103. Top plate; 104. Third side plate; 105. Observation hole; 106. Fourth side plate; 2. Spraying mechanism; 201. Lead screw; 202. Optical axis; 203. Sprayer; 204. Second motor base; 205. Second motor; 3. First limiting plate; 301. Mating groove; 4. Second limiting plate; 401. Moving block; 5. Rotating motor; 6. First clamping assembly; 601. First plate; 602. Spring; 603. Second plate; 604. First clamping plate; 605. Second clamping plate; 606. Mating shaft; 7. Second clamping assembly; 701. Rotating shaft; 8. Horizontal displacement mechanism; 801. Conveyor roller; 802. Conveyor belt; 803. First motor base; 804. First motor; 9. Drying fan.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication 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.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] Please see Figures 1 to 4This application provides a circuit board spraying device, which may include: a housing 1, a spraying mechanism 2, a first limiting plate 3, a second limiting plate 4, a rotary motor 5, a first clamping assembly 6, and a second clamping assembly 7. The housing 1 includes a first side plate 101 and a second side plate 102 disposed opposite to each other. The spraying mechanism 2 is disposed within the housing 1 and located between the first side plate 101 and the second side plate 102. The first limiting plate 3 is disposed close to the side of the first side plate 101 facing the second side plate 102. The second limiting plate 4 is disposed close to the side of the second side plate 102 facing the first side plate 101, and the second limiting plate 4 is disposed opposite to the first limiting plate 3. The rotary motor 5 is disposed on the side of the first limiting plate 3 facing the second limiting plate 4. The first clamping assembly 6 is disposed at the output end of the rotary motor 5. The second clamping assembly 7 is rotatably disposed on the side of the second limiting plate 4 facing the first limiting plate 3, and the second clamping assembly 7 is disposed opposite to the first clamping assembly 6.

[0027] Specifically, the circuit board coating apparatus of this application, when coating a circuit board, first clamps the circuit board to be coated with conformal coating between the first clamping assembly 6 and the second clamping assembly 7. Then, the coating mechanism 2 is activated to coat the circuit board with conformal coating. After one side of the circuit board is coated, the rotary motor 5 is activated to rotate the circuit board to be coated by 180°. Finally, the coating mechanism 2 is activated again to coat the back of the circuit board with conformal coating, thereby completing the conformal coating of the circuit board. After one side of the circuit board is coated, it is no longer necessary to remove the circuit board, flip it over, and reinstall it on the circuit board coating apparatus for conformal coating, which greatly simplifies the operation process of coating the circuit board with conformal coating and improves the coating efficiency.

[0028] Please see Figure 3 , Figure 4 The first clamping assembly 6 may include: a first plate 601, a plurality of springs 602 and a second plate 603, wherein the middle part of the first plate 601 is connected to the rotating motor 5; one end of the plurality of springs 602 is connected to the side of the first plate 601 facing the second clamping assembly 7; the second plate 603 is connected to the other end of the plurality of springs 602; wherein the second clamping assembly 7 has the same structure as the first clamping assembly 6.

[0029] In this embodiment, one side of the first plate 601 is connected to the output shaft of the rotating motor 5, and the other side of the first plate 601 is connected to the second plate 603 through multiple springs 602. Since the second clamping component 7 has the same structure as the first clamping component 6, it is more convenient to clamp the circuit board to be sprayed between the first clamping component 6 and the second clamping component 7.

[0030] To improve the clamping effect of the circuit board between the first clamping component 6 and the second clamping component 7, a mating groove is opened on the side of the second plate 603 facing the circuit board, and the circuit board is placed in the mating groove when clamping the circuit board.

[0031] It should be noted that, in order to accommodate circuit boards of different sizes, the first clamping component 6 and the second clamping component 7 of different specifications can be provided. For example, the first clamping component 6 and the second clamping component 7 of different specifications can be provided by increasing or decreasing the distance between the first plate 601 and the second plate 603, or by increasing or decreasing the length of multiple springs 602, thereby broadening the application scenarios of the circuit board spraying device involved in this application.

[0032] Please see Figure 2 , Figure 4 The first limiting plate 3 has a mating groove 301 on the side facing the second limiting plate 4, and the rotating motor 5 is fixed in the mating groove 301; the second limiting plate 4 has a moving block 401 on the side facing the first limiting plate 3, and the second clamping assembly 7 is rotatably mated on the moving block 401.

[0033] In this embodiment, the rotating motor 5 is positioned within the mating groove 301 on the first limiting plate 3; the second clamping assembly 7 is rotatably fitted onto the moving block 401. By adjusting the position height of the rotating motor 5 within the mating groove 301 and the position height of the moving block 401 on the second limiting plate 4, the system can accommodate the clamping of circuit boards of different specifications. This ensures that the circuit board is not interfered with by other components inside the housing 1 during rotation, facilitating the application of conformal coating to both sides of the circuit board.

[0034] Please see Figure 4 The second clamping assembly 7 has a rotating shaft 701 in the middle of the side opposite to the first clamping assembly 6. The rotating shaft 701 is rotatably connected to the moving block 401 through a bearing.

[0035] In this embodiment, the rotating shaft 701 is connected to the moving block 401 by a bearing so that when the rotating motor 5 drives the circuit board to rotate, there will be no jamming or inability to rotate, ensuring that both sides of the circuit board can be coated with conformal coating.

[0036] Please see Figure 2 The circuit board spraying device may also include: a horizontal displacement mechanism 8, wherein the horizontal displacement mechanism 8 is disposed inside the housing 1, and the horizontal displacement mechanism 8 is used to drive the first limiting plate 3 and the second limiting plate 4 to move horizontally.

[0037] By setting up the horizontal displacement mechanism 8, the conformal coating can be sprayed more evenly on the circuit board. Specifically, when the spraying mechanism 2 sprays the conformal coating onto the circuit board, the horizontal displacement mechanism 8 drives the first limiting plate 3 and the second limiting plate 4 to move horizontally, thereby causing the circuit board clamped between the first clamping assembly 6 and the second clamping assembly 7 to move horizontally, so that the conformal coating on the circuit board is sprayed more evenly, and every area on the surface of the circuit board is sprayed with conformal coating.

[0038] It should be noted that the horizontal displacement mechanism 8 moves alternately in the horizontal direction, rather than moving continuously in one direction on the horizontal plane.

[0039] Please see Figure 4 The horizontal displacement mechanism 8 may include: at least two conveyor rollers 801, a conveyor belt 802, a first motor base 803, and a first motor 804. The at least two conveyor rollers 801 are rotatably disposed between the first side plate 101 and the second side plate 102. The conveyor belt 802 is disposed on the outer periphery of the conveyor rollers 801, and the first limiting plate 3 and the second limiting plate 4 are respectively disposed on both sides of the conveyor belt 802. The first motor base 803 is disposed on the outer side of the first side plate 101 or the second side plate 102. The first motor 804 is fixed on the first motor base 803, and the output end of the first motor 804 is connected to one of the conveyor rollers 801.

[0040] When the circuit board moves horizontally, the first motor 804 starts, thereby driving the conveyor roller 801 to rotate. Since the conveyor belt 802 is set on the outer periphery of the conveyor roller 801, when the conveyor roller 801 rotates, it will drive the conveyor belt 802 to move. The movement of the conveyor belt 802 will drive the first limiting plate 3 and the second limiting plate 4 set on it to move back and forth, thereby driving the circuit board set between the first limiting plate 3 and the second limiting plate 4 to move back and forth, so that all parts of the circuit board surface are coated with conformal coating.

[0041] Furthermore, each conveyor roller 801 is rotatably coupled to the first side plate 101 via bearings, and each conveyor roller 801 is rotatably coupled to the second side plate 102 via bearings.

[0042] Specifically, the rotational engagement between each conveyor roller 801 and the first side plate 101 and the second side plate 102 is achieved by setting bearings, which ensures the smooth rotation of each conveyor roller 801. During the rotation process, not much force is required, thus effectively saving energy.

[0043] Please see Figure 4The spraying mechanism 2 may include: a lead screw 201, an optical shaft 202, a sprayer 203, a second motor base 204, and a second motor 205. The lead screw 201 is rotatably fitted between the first side plate 101 and the second side plate 102; the optical shaft 202 is fixed between the first side plate 101 and the second side plate 102; the sprayer 203 is threaded onto the lead screw 201 and slidably fitted onto the optical shaft 202; the second motor base 204 is disposed on the outside of the first side plate 101 or the second side plate 102; the second motor 205 is fixed onto the second motor base 204, and the output end of the second motor 205 is connected to one end of the lead screw 201.

[0044] In this embodiment, when the spraying mechanism 2 is spraying, the second motor 205 starts and drives the lead screw 201 to rotate. Since the lead screw 201 is threadedly engaged with the spraying machine 203 and the optical shaft 202 is slidably engaged with the spraying machine 203, when the second motor 205 drives the lead screw 201 to rotate, the spraying machine 203 will move along the direction of the lead screw 201 and the optical shaft 202, so that the spraying machine 203 can spray every part of the circuit board surface, making the conformal coating on the circuit board surface more uniform.

[0045] Please see Figure 4 The housing 1 also includes a top plate 103, on the side of the top plate 103 facing the spraying mechanism 2, a plurality of drying fans 9 are provided.

[0046] In this process, while the spraying mechanism 2 is spraying conformal coating onto the battery panel, multiple drying fans 9 are turned on to dry the conformal coating on the circuit board. After the spraying mechanism 2 has just finished spraying the conformal coating onto one side of the circuit board, the multiple drying fans 9 also dry the conformal coating. There is no need to wait for the conformal coating on one side of the circuit board to air dry naturally before spraying the other side of the circuit board, which improves the efficiency of spraying conformal coating onto the circuit board.

[0047] Please see Figure 1 The housing 1 may further include a third side plate 104 and a fourth side plate 106, wherein the third side plate 104 is disposed at the end of the first side plate 101 and the second side plate 102, the third side plate 104 is hinged to the end of the first side plate 101 or the second side plate 102, and an observation hole 105 is provided on the third side plate 104; the fourth side plate 106 is disposed at the end of the first side plate 101 and the second side plate 102, and is disposed opposite to the third side plate 104.

[0048] Specifically, the dustproof effect of the device is improved by setting the third side plate 104 and the fourth side plate 106. An observation hole 105 is opened on the third side plate 104, and glass can be installed at the observation hole 105 to facilitate the operator's observation when spraying the circuit board.

[0049] Please see Figure 3The second plate 603 is provided with a first clamping plate 604 and a second clamping plate 605 on the side facing the circuit board. The first clamping plate 604 is fixed to the side of the second plate 603 facing the circuit board. The second clamping plate 605 is connected to the first clamping plate 604 by multiple springs. Each spring is fitted with a mating shaft 606. One end of the mating shaft 606 is fixed to the first clamping plate 604, and the other end of the mating shaft 606 is slidably engaged with the second clamping plate 605.

[0050] In this embodiment, when applying conformal coating to the circuit board, the circuit board needs to be clamped. When clamping the circuit board, the circuit board is placed between the first clamping plate 604 and the second clamping plate 605. Under the elastic force of multiple springs, the second clamping plate 605 slides up and down on the mating shaft 606, and the circuit board is clamped.

[0051] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A circuit board spraying device, characterized in that, include: The housing (1) includes a first side plate (101) and a second side plate (102) disposed opposite to each other; The spraying mechanism (2) is disposed inside the housing (1) and located between the first side plate (101) and the second side plate (102); The first limiting plate (3) is located near the side of the first side plate (101) facing the second side plate (102); The second limiting plate (4) is located near the side of the second side plate (102) facing the first side plate (101), and the second limiting plate (4) is disposed opposite to the first limiting plate (3); A rotating motor (5) is positioned on the side of the first limiting plate (3) facing the second limiting plate (4); The first clamping assembly (6) is disposed at the output end of the rotary motor (5); The second clamping assembly (7) is rotatably disposed on the side of the second limiting plate (4) facing the first limiting plate (3), and the second clamping assembly (7) is disposed opposite to the first clamping assembly (6).

2. The circuit board spraying apparatus according to claim 1, characterized in that, The first clamping assembly (6) includes: The first plate (601) is connected to the rotating motor (5) in the middle; Multiple springs (602) are connected at one end to the side of the first plate (601) facing the second clamping assembly (7); The second plate (603) is connected to the other end of the plurality of springs (602); The second clamping component (7) has the same structure as the first clamping component (6).

3. The circuit board spraying apparatus according to claim 2, characterized in that, The first limiting plate (3) has a mating groove (301) on the side facing the second limiting plate (4), and the rotating motor (5) is fixed in the mating groove (301); The second limiting plate (4) has a movable block (401) on the side facing the first limiting plate (3), and the second clamping assembly (7) is rotatably engaged with the movable block (401).

4. The circuit board spraying apparatus according to claim 3, characterized in that, The second clamping assembly (7) has a rotating shaft (701) in the middle of the side opposite to the first clamping assembly (6), and the rotating shaft (701) is rotatably connected to the moving block (401) through a bearing.

5. The circuit board spraying apparatus according to claim 1, characterized in that, The circuit board spraying device also includes: A horizontal displacement mechanism (8) is disposed inside the housing (1). The horizontal displacement mechanism (8) is used to drive the first limiting plate (3) and the second limiting plate (4) to move horizontally.

6. The circuit board spraying apparatus according to claim 5, characterized in that, The horizontal displacement mechanism (8) includes: At least two conveyor rollers (801) are rotatably disposed between the first side plate (101) and the second side plate (102); A conveyor belt (802) is disposed on the outer periphery of the conveyor roller (801), and the first limiting plate (3) and the second limiting plate (4) are respectively disposed on both sides of the conveyor belt (802); The first motor mount (803) is disposed on the outside of the first side plate (101) or the second side plate (102); A first motor (804) is fixed on a first motor base (803), and the output end of the first motor (804) is connected to one of the conveyor rollers (801).

7. The circuit board spraying apparatus according to claim 6, characterized in that, Each of the conveying rollers (801) is rotatably connected to the first side plate (101) via bearings, and each of the conveying rollers (801) is rotatably connected to the second side plate (102) via bearings.

8. The circuit board spraying apparatus according to claim 1, characterized in that, The spraying mechanism (2) includes: The lead screw (201) is rotatably fitted between the first side plate (101) and the second side plate (102); The optical axis (202) is fixed between the first side plate (101) and the second side plate (102); A spraying machine (203) is threaded onto the lead screw (201) and slidably fitted onto the optical axis (202); The second motor mount (204) is disposed on the outside of the first side plate (101) or the second side plate (102); The second motor (205) is fixed on the second motor base (204), and the output end of the second motor (205) is connected to one end of the lead screw (201).

9. The circuit board spraying apparatus according to claim 1, characterized in that, The housing (1) also includes a top plate (103), on which a plurality of drying fans (9) are provided on the side facing the spraying mechanism (2).

10. The circuit board spraying apparatus according to claim 1, characterized in that, The housing (1) further includes: A third side plate (104) is disposed at the end of the first side plate (101) and the second side plate (102). The third side plate (104) is hinged to the end of the first side plate (101) or the second side plate (102). An observation hole (105) is provided on the third side plate (104). The fourth side plate (106) is disposed at the end of the first side plate (101) and the second side plate (102), and is disposed opposite to the third side plate (104).

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