A soldering flux spraying device for PCB circuit board processing
Patent Information
- Application Number
- CN202522377434.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-10
AI Technical Summary
在传统PCB板加工过程中，阻焊剂常在露天或非封闭空间中喷涂，阻焊剂中含有大量有机溶剂和挥发性有害成分，在高压雾化喷涂时极易形成高浓度悬浮气溶胶，被操作者直接吸入呼吸道或经皮肤接触吸收，不仅会刺激眼睛、呼吸系统和皮肤，诱发头晕、过敏、慢性呼吸道疾病，还可能因长期暴露导致肝肾功能损伤甚至致癌，加之喷涂区多通风不良，作业人员缺乏有效防护，健康风险显著提升，亟需采用密闭式喷涂系统或配套排风净化装置以改善作业环境
本实用新型中，通过设于支撑板上部的迁移组件对PCB板进行平稳承载与输送，当PCB板通过迁移组件移动至喷涂室入口处时，联动组件随迁移动作同步触发，驱动安装在喷涂室开口处的门板完成闭合操作，形成封闭喷涂环境，防止助焊剂在喷涂过程中的挥发气体泄漏至外部空气中。喷涂作业在密闭的喷涂室内部进行，喷涂头对PCB板表面均匀释放助焊剂，有效避免因外部空气扰动、尘埃影响而导致的喷涂不均或污染问题，提升阻焊层的成膜一致性与附着质量。作业完成后，门板通过联动组件重新开启，迁移组件继续驱动PCB板输出至下一工序区域，实现全过程的自动传输、自动封闭与喷涂操作的无缝衔接，不仅提升作业效率，还能显著减少对操作者的有害气体暴露风险，改善工作环境安全性，提升作业品质与环保效果。
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Figure CN224823115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB board processing technology, and in particular to a flux spraying device for PCB board processing. Background Technology
[0002] PCB board processing refers to the process of transforming a designed circuit diagram into a physical printed circuit board through a series of precise technological steps. It is widely used in the manufacturing of electronic equipment. This process usually includes circuit diagram design, copper-clad board cutting, drilling, electroplating, pattern transfer, etching, pad coating, solder resist printing, character printing, surface treatment, and finished product testing. In traditional PCB manufacturing, solder resist is often sprayed in open or unenclosed spaces. Solder resist contains a large amount of organic solvents and volatile harmful components, which can easily form high-concentration suspended aerosols during high-pressure atomization spraying. These aerosols can be directly inhaled into the respiratory tract or absorbed through the skin by operators, which can not only irritate the eyes, respiratory system, and skin, and induce dizziness, allergies, and chronic respiratory diseases, but may also cause liver and kidney damage or even cancer due to long-term exposure. In addition, the spraying area is often poorly ventilated and operators lack effective protection, which significantly increases the health risks. There is an urgent need to adopt a closed spraying system or a matching exhaust and purification device to improve the working environment. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flux spraying device for PCB circuit board processing, comprising a support plate and a transfer component, wherein the transfer component is fixedly installed on the upper part of the support plate for supporting the PCB board; a spraying chamber, wherein the spraying chamber is fixedly installed on the upper part of the support plate and receives the PCB board transferred by the transfer component for flux spraying; a door panel, wherein the door panel is rotatably installed at the opening of the spraying chamber; and a linkage component, wherein after the transfer component drives the PCB board into the spraying chamber, the linkage component drives the door panel to close.
[0005] In at least some embodiments, the migration assembly includes a motor fixed to the upper part of the support plate, the output end of which is fixedly connected to a lead screw rotatably mounted on the upper part of the support plate.
[0006] In at least some embodiments, a placement plate is screwed to the outside of the lead screw. The placement plate is used to place the PCB board. In use, the motor drives the placement plate to perform a lateral movement. The placement plate has several through holes for guiding and collecting excess flux.
[0007] In at least some embodiments, the linkage component includes a toothed groove formed on the lower part of the placement plate, the placement plate is slidably mounted on the upper part of the support plate, and a driven gear rotatably mounted on the upper part of the support plate engages with the toothed groove.
[0008] In at least some embodiments, a first rotating wheel fixed to the lower part of the driven gear and a second rotating wheel rotatably installed inside the support plate are driven by a belt. A bevel gear set is also rotatably installed inside the support plate. The second rotating wheel is connected to a third rotating wheel through the bevel gear set. A rotating shaft is rotatably installed on the upper part of the spraying chamber. The door panel is fixedly connected to the outside of the rotating shaft. A fourth rotating wheel fixed to one end of the rotating shaft is driven by a belt and the third rotating wheel.
[0009] In at least some embodiments, limiting components are also provided on both sides of the placement plate. The limiting components include fixing plates fixed to both sides of the placement plate by screws. Slide plates are slidably installed inside the two fixing plates by springs. The two slide plates are used to elastically clamp the PCB board.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, a transfer component located on the upper part of a support plate stably supports and transports the PCB board. When the PCB board moves to the entrance of the spraying chamber via the transfer component, a linkage component is triggered synchronously with the transfer action, driving the door panel installed at the opening of the spraying chamber to close, forming a closed spraying environment and preventing the leakage of flux volatiles into the outside air during the spraying process. The spraying operation is carried out inside the sealed spraying chamber, and the spray head evenly releases flux onto the surface of the PCB board, effectively avoiding uneven spraying or contamination caused by external air disturbances and dust, and improving the consistency and adhesion quality of the solder resist film. After the operation is completed, the door panel reopens via the linkage component, and the transfer component continues to drive the PCB board to the next process area, achieving seamless connection between automatic transmission, automatic sealing, and spraying operations throughout the entire process. This not only improves work efficiency but also significantly reduces the risk of exposure to harmful gases to operators, improves the safety of the working environment, and enhances work quality and environmental protection. Attached Figure Description
[0011] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a flux spraying device for PCB circuit board processing; Figure 2 This utility model provides a three-dimensional structural diagram of the linkage component in a flux spraying device for PCB circuit board processing; Figure 3 This utility model provides a three-dimensional schematic diagram of the structure of the board placed in a flux spraying device for PCB circuit board processing; Figure 4This invention provides a three-dimensional structural diagram of a limiting component in a flux spraying device for PCB circuit board processing.
[0012] Legend: 1. Support plate; 2. Spray booth; 3. Motor; 4. Lead screw; 5. Placement plate; 6. Limiting assembly; 7. Door panel; 8. Linkage assembly; 601. Fixing plate; 602. Slide plate; 603. Screw; 801. Driven gear; 802. First rotating gear; 803. Second rotating gear; 804. Bevel gear set; 805. Third rotating gear; 806. Fourth rotating gear; 807. Rotating shaft. Detailed Implementation
[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0015] Example, according to Figures 1-4 As shown in the figure, the present invention provides a flux spraying device for PCB circuit board processing, including a support plate 1 and a transfer component, which is fixedly installed on the upper part of the support plate 1 to support the PCB board; a spraying chamber 2, which is fixedly installed on the upper part of the support plate 1 and receives the PCB board transferred by the transfer component to perform flux spraying operation; a door plate 7, which is rotatably installed at the opening of the spraying chamber 2; and a linkage component 8, which drives the door plate 7 to close after the transfer component drives the PCB board into the spraying chamber 2.
[0016] The above-mentioned flux spraying device for PCB circuit board processing uses a transfer component located on the upper part of the support plate 1 to stably carry and transport the PCB board. When the PCB board moves to the entrance of the spraying chamber 2 through the transfer component, the linkage component 8 is triggered synchronously with the transfer action, driving the door plate 7 installed at the opening of the spraying chamber 2 to complete the closing operation, forming a closed spraying environment and preventing the volatile gas of flux during the spraying process from leaking into the outside air. The spraying operation is carried out inside the sealed spraying chamber 2. The spraying head evenly releases flux onto the PCB board surface, effectively avoiding uneven spraying or contamination caused by external air disturbances and dust, and improving the film formation consistency and adhesion quality of the solder resist layer.
[0017] In this embodiment, the migration component includes a motor 3 fixed on the upper part of the support plate 1. The output end of the motor 3 is fixedly connected to a lead screw 4 rotatably mounted on the upper part of the support plate 1. A placement plate 5 is screwed to the outside of the lead screw 4. The placement plate 5 is used to place the PCB board. In use, the motor 3 drives the placement plate 5 to perform a horizontal movement. The placement plate 5 has several through holes for guiding and collecting excess flux.
[0018] The migration component uses a motor 3 fixed on the upper part of the support plate 1 as a power source. The output end of the motor 3 is fixedly connected to the horizontally arranged lead screw 4. The rotation of the lead screw 4 drives the placement plate 5 screwed to its outside to move smoothly along the horizontal direction of the support plate 1, so as to realize the precise delivery of the PCB board from the external area to the interior of the spraying chamber 2. The placement plate 5 has several through holes, which can be used to guide and collect the flux that splashes or is excess during the spraying process, preventing it from remaining on the surface and causing contamination or repeated contamination of other components. It also facilitates centralized recycling and reprocessing, improves the cleanliness of the process and the utilization rate of materials, and helps maintain the cleanliness of the spraying environment and the stability of the spraying quality.
[0019] In this embodiment, the linkage component 8 includes a toothed groove formed in the lower part of the placement plate 5. The placement plate 5 is slidably mounted on the upper part of the support plate 1. The driven gear 801, which is rotatably mounted on the upper part of the support plate 1, is movably meshed with the toothed groove. The first rotating wheel 802, which is fixed in the lower part of the driven gear 801, and the second rotating wheel 803, which is rotatably mounted inside the support plate 1, are driven by the belt. The support plate 1 also has a bevel gear set 804 rotatably mounted inside. The second rotating wheel 803 is connected to the third rotating wheel 805 through the bevel gear set 804. The upper part of the spraying chamber 2 has a rotating shaft 807 rotatably mounted. The door panel 7 is fixedly connected to the outside of the rotating shaft 807. The fourth rotating wheel 806, which is fixed at one end of the rotating shaft 807, is driven by the third rotating wheel 805.
[0020] The linkage component 8 achieves automatic opening and closing control of the door panel 7 through gear and pulley transmission. When the placement plate 5 slides into the spraying chamber 2 under the drive of the motor 3, the toothed groove at its lower part engages with the driven gear 801 installed on the upper part of the support plate 1, driving the driven gear 801 to rotate synchronously; The first rotating wheel 802, which is fixedly connected to the lower part of the driven gear 801, is connected to the second rotating wheel 803, which is set inside the support plate 1, via a transmission belt. The rotation of the second rotating wheel 803 is further transmitted to the third rotating wheel 805 through the bevel gear set 804 set inside the support plate 1. The third rotary wheel 805 is connected to the fourth rotary wheel 806 via a belt. The fourth rotary wheel 806 is fixedly installed at one end of the rotating shaft 807 on the upper part of the spray chamber 2. As it rotates, it drives the door panel 7 fixed on the rotating shaft 807 to open or close. Throughout the process, the opening and closing of the door panel 7 and the movement of the placement plate 5 form a mechanical linkage, which can realize the synchronous and sealed operation of the PCB board entering and leaving the spray chamber 2 without the need for an additional control unit. This not only improves the automation and reliability of the structure, but also effectively prevents the leakage of flux atomized gas, ensuring a safe operating environment.
[0021] In this embodiment, limiting components 6 are also provided on both sides of the placement plate 5. The limiting components 6 include fixing plates 601 fixed to both sides of the placement plate 5 by screws 603. Slide plates 602 are slidably installed inside the two fixing plates 601 by springs. The two slide plates 602 are used to elastically clamp the PCB board.
[0022] The limiting components 6, located on both sides of the placement plate 5, are used to reliably position and clamp the PCB board, ensuring its stability during migration and spraying. Specifically, the limiting components 6 include fixing plates 601 fixed on both sides of the placement plate 5, with sliding plates 602 slidably installed inside the fixing plates 601. A compression spring is provided between the sliding plates 602 and the fixing plates 601 to provide continuous elastic force, causing the two sliding plates 602 to automatically return to the center, thereby achieving elastic clamping of the PCB board. When the PCB board is placed, the slide plate 602 slides outward under the action of the spring to adapt to the width of the board. Then, under the action of the elastic force, it is stably clamped on the surface of the placement plate 5 to avoid problems such as displacement, vibration or tilting during the processing, and to ensure the accuracy and positional consistency of the spraying operation.
[0023] The working principle of this utility model is as follows: the PCB board is stably supported and transported by the migration component located on the upper part of the support plate 1. When the PCB board moves to the entrance of the spraying chamber 2 through the migration component, the linkage component 8 is triggered synchronously with the migration action, driving the door plate 7 installed at the opening of the spraying chamber 2 to complete the closing operation, forming a closed spraying environment, preventing the volatile gas of flux during the spraying process from leaking into the outside air; the spraying operation is carried out inside the sealed spraying chamber 2, and the spraying head evenly releases flux to the surface of the PCB board, effectively avoiding the problem of uneven spraying or contamination caused by external air disturbance and dust, and improving the film formation consistency and adhesion quality of the solder resist layer.
[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A flux spraying device for PCB circuit board processing, comprising a support plate (1), characterized in that, Also includes: The migration component is fixedly installed on the upper part of the support plate (1) and is used to support the PCB board; Spraying chamber (2), the spraying chamber (2) is fixedly installed on the upper part of the support plate (1) and receives the PCB board transmitted by the migration component to perform flux spraying operation; Door panel (7), which is rotatably installed at the opening of the spray chamber (2); The linkage component (8) drives the PCB board into the spraying chamber (2) and then drives the door panel (7) to close.
2. The flux spraying device for PCB circuit board processing according to claim 1, characterized in that: The migration assembly includes a motor (3) fixed on the upper part of the support plate (1), and the output end of the motor (3) is fixedly connected to a lead screw (4) rotatably mounted on the upper part of the support plate (1).
3. The flux spraying device for PCB circuit board processing according to claim 2, characterized in that: The lead screw (4) is screwed to a placement plate (5), which is used to place the PCB board. When in use, the motor (3) drives the placement plate (5) to move laterally. The placement plate (5) has several through holes for guiding and collecting excess flux.
4. The flux spraying device for PCB circuit board processing according to claim 3, characterized in that: The linkage component (8) includes a toothed groove formed on the lower part of the placement plate (5). The placement plate (5) is slidably mounted on the upper part of the support plate (1). A driven gear (801) rotatably mounted on the upper part of the support plate (1) engages with the toothed groove.
5. The flux spraying device for PCB circuit board processing according to claim 4, characterized in that: The first rotating wheel (802) fixed at the lower part of the driven gear (801) and the second rotating wheel (803) rotatably installed inside the support plate (1) are driven by the belt. A bevel gear set (804) is also rotatably installed inside the support plate (1). The second rotating wheel (803) is connected to the third rotating wheel (805) through the bevel gear set (804). The upper part of the spraying chamber (2) is rotatably mounted with a rotating shaft (807), and the door panel (7) is fixedly connected to the outside of the rotating shaft (807). The fourth rotating wheel (806) fixed at one end of the rotating shaft (807) is driven by the third rotating wheel (805).
6. The flux spraying device for PCB circuit board processing according to claim 3, characterized in that: The placement plate (5) is also provided with limiting components (6) on both sides. The limiting components (6) include fixing plates (601) fixed on both sides of the placement plate (5) by screws (603). Slide plates (602) are slidably installed inside the two fixing plates (601) by springs. The two slide plates (602) are used to elastically clamp the PCB board.