A spraying and drying integrated equipment with accurate metering function

Abstract

The utility model relates to spraying equipment technical field, and disclose a kind of spraying drying integrated equipment with accurate metering function, including spraying drying integrated equipment ontology, the surface rotationally connected of spraying drying integrated equipment ontology has operating door, the side of spraying drying integrated equipment ontology is provided with guide slot, the inner wall of guide slot is equipped with two transmission guide rails, the surface of two transmission guide rails is equipped with adjusting device.This kind of spraying drying integrated equipment with accurate metering function, it has solved the obvious pain point of the guide slot plate of existing equipment storage: one is PCB board without fixed structure, by vibration, inertia or spraying air flow influence easy to deviate and shake, to spraying uneven, protection failure, it can also collide and damage;Two is unable to overturn spraying, double-sided or with insert PCB board has coating blind area, need manual secondary operation, increase process, extend cycle, and easy to damage coating or cause parameter deviation, difficult to meet the problem of high-precision demand.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to an integrated spraying and drying equipment with precise metering function. Background Technology

[0002] In electronics manufacturing, PCB conformal coating and drying integrated machines are used to coat printed circuit boards (PCBs) with conformal coating. Equipped with high-precision flow and pressure sensors, the equipment precisely controls the amount of conformal coating applied, ensuring a uniform and consistent coating with minimal error. For drying, a combination of hot air circulation and infrared heating is typically used for rapid curing of the conformal coating. The core workflow is as follows: the operator places the PCB in the machine's guide trough, where a conveyor rail guides the PCB along a pre-set path into the coating and drying zones, completing the conformal coating and curing process. This significantly simplifies the traditional separate processes and makes it a key piece of equipment in the PCB post-processing stage.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Existing equipment has obvious pain points in the board feeding process around the guide groove: First, the PCB board lacks a fixed structure and is easily offset and shaken in the guide groove due to equipment vibration, transmission inertia or spray airflow, resulting in uneven coating thickness, affecting the protective effect, and may also collide with the equipment and cause damage; Second, it is impossible to achieve PCB board flipping for spraying. Double-sided PCB boards or PCB boards with plug-ins have coating blind spots, requiring manual secondary flipping for spraying, increasing the process, extending the cycle, and easily damaging the coating or causing parameter deviation, making it difficult to meet the requirements of high-precision production. Utility Model Content

[0004] The technical problem this utility model aims to solve is that existing equipment with guide grooves for feeding PCBs has significant drawbacks: First, the PCB board has no fixed structure and is easily shifted and shaken by vibration, inertia, or spray airflow, resulting in uneven coating, failure of protection, and potential collision damage; second, it cannot be flipped for spraying, and double-sided or plug-in PCB boards have coating blind spots, requiring secondary manual operation, increasing the number of processes, extending the cycle, and easily damaging the coating or causing parameter deviations, making it difficult to meet high-precision requirements. Therefore, we propose an integrated spraying and drying equipment with precise metering function.

[0005] To achieve the above objectives, this application adopts the following technical solution: an integrated spraying and drying equipment with precise metering function, comprising an integrated spraying and drying equipment body, an operating door rotatably connected to the surface of the integrated spraying and drying equipment body, a guide groove opened on one side of the integrated spraying and drying equipment body, two transmission guide rails installed on the inner wall of the guide groove, an adjustment device provided on the surface of the two transmission guide rails, the adjustment device including a slide, the slide being slidably connected to the surface of the two transmission guide rails, a servo motor fixedly connected to one side of the slide, a rotating shaft rotatably inserted inside the slide, the rotating shaft being fixedly connected to the output end of the servo motor, a fixed frame fixedly connected to the end of the rotating shaft away from the servo motor, two circular chambers fixedly connected to the inner wall of the fixed frame, a first spring fixedly connected to the inner wall of each of the two circular chambers, a round rod fixedly connected to the end of each of the two first springs close to each other, the round rod being slidably connected to the inner wall of the circular chamber, and a clamping plate fixedly connected to one end of the round rod.

[0006] Preferably, the inner wall of the clamp is fixedly connected with a plurality of circular protrusions, the circular protrusions being made of silicone rubber.

[0007] Preferably, two second springs are fixedly connected to the top surface of the inner wall of the clamping plate, and a pressure plate is fixedly connected to one end of each of the two second springs.

[0008] Preferably, a connecting rod is slidably inserted into the clamping plate, one end of the connecting rod is fixedly connected to the pressure plate, and an arc-shaped block is fixedly connected to the end of the connecting rod away from the pressure plate.

[0009] Preferably, a protective device is provided on one side of the integrated spraying and drying equipment body. The protective device includes a mounting frame, which is fixedly connected to one side of the integrated spraying and drying equipment body. Two positioning plates are fixedly connected to the inner wall of the mounting frame, and a dustproof net is slidably connected to the inner wall of the mounting frame. A threaded rod is threaded into the mounting frame, and an L-shaped plate is rotatably connected to one end of the threaded rod. The L-shaped plate abuts against one side of the dustproof net, and a round shaft is fixedly connected to the end of the threaded rod away from the L-shaped plate.

[0010] Preferably, a limiting rod is slidably inserted into the mounting frame, and one end of the limiting rod is fixedly connected to the L-shaped plate.

[0011] Preferably, the circular arc surface of the circular shaft is provided with a plurality of anti-slip grooves, and the plurality of anti-slip grooves are evenly distributed in a circumferential array on the circular arc surface of the circular shaft.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the adjusting device forms an elastic clamping structure through the synergistic action of the clamping plate, the round rod, and the first spring. When the PCB board is placed in, the round rod, under the elastic force of the first spring, drives the clamping plate to adaptively fit the PCB board of different sizes, achieving stable clamping and preventing displacement or shaking during processing, thus ensuring positioning accuracy during spraying and drying. At the same time, the rotating shaft driven by the servo motor can flexibly rotate the fixing frame and the clamped PCB board, allowing all parts of the PCB board, such as the front and back sides and edges, to be fully exposed in the spraying and drying area. The coating evenly covers the board surface, significantly improving the processing quality of the PCB board.

[0014] In this invention, the dustproof net in the protective device directly covers the heat dissipation holes, effectively blocking external dust or impurities from entering the interior of the equipment, preventing dust from accumulating and clogging the heat dissipation holes or adhering to internal electrical components, and ensuring the ventilation and heat dissipation efficiency of the heat dissipation holes. At the same time, rotating the round shaft can drive the threaded rod to rotate, thereby driving the L-shaped plate to tightly abut against or move away from the dustproof net, which facilitates the replacement of the dustproof net. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the carriage in this utility model;

[0018] Figure 3 This is a schematic diagram of the circular bin structure in this utility model;

[0019] Figure 4 In this utility model Figure 3 A sectional view;

[0020] Figure 5 This is a schematic diagram of the protective device in this utility model;

[0021] Figure 6 In this utility model Figure 5 Enlarged view of point A.

[0022] Legend: 1. Main body of the integrated spraying and drying equipment; 2. Operating door; 3. Guide groove; 4. Transmission guide rail; 5. Adjustment device; 501. Slide; 502. Servo motor; 503. Rotating shaft; 504. Fixing frame; 505. Circular chamber; 506. First spring; 507. Round rod; 508. Clamping plate; 509. Circular protrusion; 510. Second spring; 511. Pressure plate; 512. Connecting rod; 513. Arc-shaped block; 6. Protective device; 61. Mounting frame; 62. Positioning plate; 63. Threaded rod; 64. L-shaped plate; 65. Round shaft; 66. Limiting rod; 67. Anti-slip groove; 68. Dustproof net. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Reference Figures 1-6 As shown, this utility model provides a technical solution: an integrated spraying and drying equipment with precise metering function, including a spraying and drying equipment body 1, an operating door 2 rotatably connected to the surface of the spraying and drying equipment body 1, a guide groove 3 opened on one side of the spraying and drying equipment body 1, two transmission guide rails 4 installed on the inner wall of the guide groove 3, and an adjustment device 5 provided on the surface of the two transmission guide rails 4. The adjustment device 5 forms an elastic clamping structure through the synergistic action of a clamping plate 508, a round rod 507 and a first spring 506. When a PCB board is placed in, the round rod 507 will drive the clamping plate 508 to adaptively fit the PCB board of different sizes under the elastic force of the first spring 506, which can achieve stable clamping to prevent displacement and shaking during processing, and ensure positioning accuracy during spraying and drying. Simultaneously, with the help of the servo motor 502 driving the rotating shaft 503 to rotate, the fixed frame 504 and the clamped PCB board can be flexibly rotated, so that the front and back sides, edges and other parts of the PCB board can be fully exposed to the spraying and drying area. The coating evenly covers the board surface, significantly improving the processing quality of the PCB board. A protective device 6 is provided on one side of the spraying and drying integrated equipment body 1. The dustproof net 68 in the protective device 6 directly covers the heat dissipation holes, effectively blocking external dust or impurities from entering the interior of the equipment, avoiding dust accumulation and blockage of the heat dissipation holes or adhesion to internal electrical components, and ensuring the ventilation and heat dissipation efficiency of the heat dissipation holes. At the same time, by rotating the round shaft 65, the threaded rod 63 can be rotated, thereby driving the L-shaped plate 64 to closely abut or move away from the dustproof net 68, which facilitates the replacement of the dustproof net 68.

[0025] The specific settings and functions of its adjustment device 5 and protection device 6 will be explained in detail below.

[0026] Reference Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment: the adjusting device 5 includes a slide 501, which is slidably connected to the surfaces of two transmission guide rails 4. A servo motor 502 is fixedly connected to one side of the slide 501. A rotating shaft 503 is rotatably inserted inside the slide 501. The rotating shaft 503 is fixedly connected to the output end of the servo motor 502. A fixing frame 504 is fixedly connected to the end of the rotating shaft 503 away from the servo motor 502. Two cylindrical chambers 505 are fixedly connected to the inner wall of the fixing frame 504. A first spring 506 is fixedly connected to the inner wall of each of the two cylindrical chambers 505. A round rod 507 is fixedly connected to the end of each of the two first springs 506 that is close to each other. The round rod 507 is slidably connected to the inner wall of the cylindrical chamber 505. A clamping plate 508 is fixedly connected to one end of the round rod 507. Several circular protrusions 509 are fixedly connected to the inner wall of the clamping plate 508. The circular protrusions 509 are made of silicone rubber. The silicone rubber circular protrusions 509 on the inner wall of the clamping plate 508 can prevent scratches, indentations, and other damage to the PCB board surface during clamping. They can also adapt to minor unevenness on the PCB board surface, ensuring tight clamping. Two second springs 510 are fixedly connected to the top surface of the inner wall of the clamping plate 508, and one end of each second spring 510 is fixedly connected to a pressure plate 511. The second springs 510 and pressure plate 511 on the top surface of the inner wall of the clamping plate 508 cooperate with each other. Due to the elastic force of the springs, the pressure plate 511 can adaptively clamp PCB boards of different thicknesses. Simultaneously, it forms a multi-directional clamping structure with the side walls of the clamping plate 508, effectively filling vertical clamping gaps and significantly improving the stability of the PCB board during flipping and transport. A connecting rod 512 is slidably inserted inside the clamping plate 508. One end of the connecting rod 512 is fixedly connected to the pressure plate 511, and the end of the connecting rod 512 away from the pressure plate 511 is fixedly connected to an arc-shaped block 513. The operator can pull the arc block 513 to drive the connecting rod 512 fixed thereto to slide upward along the inner wall of the clamp 508, thereby pulling the pressure plate 511 to move upward synchronously. This linkage structure can quickly expand the placement space inside the clamp 508, making it easier for the operator to place the PCB board between the two clamps 508.

[0027] Reference Figure 5 and Figure 6As shown, specifically, the protective device 6 includes a mounting frame 61, which is fixedly connected to one side of the integrated spraying and drying equipment body 1. Two positioning plates 62 are fixedly connected to the inner wall of the mounting frame 61, and a dustproof net 68 is slidably connected to the inner wall of the mounting frame 61. A threaded rod 63 is threadedly inserted into the mounting frame 61, and an L-shaped plate 64 is rotatably connected to one end of the threaded rod 63. The L-shaped plate 64 abuts against one side of the dustproof net 68. A round shaft 65 is fixedly connected to the end of the threaded rod 63 away from the L-shaped plate 64. A limiting rod 66 is slidably inserted into the mounting frame 61, and one end of the limiting rod 66 is fixedly connected to the L-shaped plate 64. The limiting rod 66 provides precise guidance and stable support for the movement of the L-shaped plate 64, effectively preventing the L-shaped plate 64 from shifting or tilting due to the threaded transmission of the threaded rod 63. Several anti-slip grooves 67 are formed on the arc surface of the round shaft 65, and these anti-slip grooves 67 are evenly distributed in a circumferential array on the arc surface of the round shaft 65. The anti-slip groove 67 can effectively increase the friction between the operator's hand and the arc surface of the round shaft 65, and prevent slippage due to sweaty hands, oily adhesion or uneven force during rotation, so that the operator can control the rotation of the threaded rod 63 more easily and accurately.

[0028] Working principle: When the adjusting device 5 is working, the operator first manually moves the arc block 513. Pulling the arc block 513 will transmit the pulling force to the pressure plate 511 through the connecting rod 512, so that the pressure plate 511 moves smoothly upward along the preset sliding path of the inner wall of the clamping plate 508. After the PCB board is smoothly placed between the two clamping plates 508, the first spring 506 inside the round chamber 505 begins to release the elastic force, pushing the round rod 507 fixed to it along the axial direction of the round chamber 505. The round rod 507 then drives the clamping plate 508 at the other end to move closer to the side wall of the PCB board until the inner wall of the clamping plate 508 is completely in contact with both sides of the PCB board. Furthermore, the silicone rubber circular protrusions 509 fixed to the inner wall of the clamping plate 508, during lateral clamping and vertical pressing, on the one hand, utilize the soft properties of silicone rubber to avoid scratches and indentations caused by rigid friction between the clamping plate 508, the pressure plate 511, and the PCB board; on the other hand, the protrusion structure can embed into the tiny unevenness of the PCB board surface, increasing the contact friction and further improving the tightness of the clamping, effectively preventing the PCB board from shaking during subsequent transfer and flipping. At the same time, the elastic potential energy released by the second spring 510 on the top surface of the inner wall of the clamping plate 508 drives the pressure plate 511 to move downward along the inner wall of the clamping plate 508 until the bottom surface of the pressure plate 511 is tightly attached to the top surface of the PCB board. When it is necessary to spray the other side or edge of the PCB board, the servo motor 502 starts, and its output is directly transmitted to the fixed rotating shaft 503, which drives the rotating shaft 503 to rotate smoothly along the bearing in the slide 501. When the rotating shaft 503 rotates, it will simultaneously drive the fixing frame 504, the clamping plate 508 and the PCB board that is clamped in multiple directions to flip. This allows the side or edge area of ​​the PCB board that was originally facing down to be fully exposed to the spraying area, and the flipped PCB board can also be in full contact with the drying heat source, ensuring the drying effect.

[0029] When it is necessary to reduce the entry of dust, lint, and other impurities from the outside air into the equipment through the heat dissipation holes, the dustproof net 68 is pushed to slide against the inner wall of the mounting frame 61 until it contacts the positioning plate 62 on the mounting frame 61. At this time, rotating the round shaft 65 drives the threaded rod 63 to rotate within the mounting frame 61. The threaded rod 63 drives the L-shaped plate 64 to rotate and connect, while the L-shaped plate slides against the inner wall of the mounting frame 61 and is guided by the limiting rod 66. The threaded transmission of the threaded rod 63 is converted into the linear movement of the L-shaped plate, causing the L-shaped plate to gradually move closer to the side of the dustproof net 68 until it is tightly abutting against the side of the dustproof net 68. At this time, the dustproof net 68 is stably clamped within the mounting frame 61 by the clamping force of the L-shaped plate and the cooperation of the positioning plate 62 on the inner wall of the mounting frame 61, preventing the dustproof net 68 from shifting due to equipment vibration and ensuring a continuous and reliable dustproof effect.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A spraying and drying integrated equipment with precise metering function, characterized in that, The equipment includes a spraying and drying integrated equipment body (1), on which an operating door (2) is rotatably connected. A guide groove (3) is provided on one side of the spraying and drying integrated equipment body (1), and two transmission guide rails (4) are installed on the inner wall of the guide groove (3). An adjustment device (5) is provided on the surface of the two transmission guide rails (4). The adjustment device (5) includes a slide (501), which is slidably connected to the surface of the two transmission guide rails (4). A servo motor (502) is fixedly connected to one side of the slide (501), and a rotating device is rotatably inserted inside the slide (501). A shaft (503) is fixedly connected to the output end of a servo motor (502). A fixed frame (504) is fixedly connected to the end of the shaft (503) away from the servo motor (502). Two cylindrical chambers (505) are fixedly connected to the inner wall of the fixed frame (504). A first spring (506) is fixedly connected to the inner wall of each of the two cylindrical chambers (505). A round rod (507) is fixedly connected to the end of each of the two first springs (506) that is close to each other. The round rod (507) is slidably connected to the inner wall of the cylindrical chamber (505). A clamping plate (508) is fixedly connected to one end of the round rod (507).

2. The integrated spraying and drying equipment with precise metering function according to claim 1, characterized in that: The inner wall of the clamp (508) is fixedly connected with a number of circular protrusions (509), which are made of silicone rubber.

3. The integrated spraying and drying equipment with precise metering function according to claim 1, characterized in that: Two second springs (510) are fixedly connected to the top surface of the inner wall of the clamp (508), and a pressure plate (511) is fixedly connected to one end of each of the two second springs (510).

4. The integrated spraying and drying equipment with precise metering function according to claim 1, characterized in that: A connecting rod (512) is slidably inserted into the clamping plate (508). One end of the connecting rod (512) is fixedly connected to the pressure plate (511), and an arc-shaped block (513) is fixedly connected to the end of the connecting rod (512) away from the pressure plate (511).

5. The integrated spraying and drying equipment with precise metering function according to claim 1, characterized in that: A protective device (6) is provided on one side of the integrated spraying and drying equipment body (1). The protective device (6) includes a mounting frame (61). The mounting frame (61) is fixedly connected to one side of the integrated spraying and drying equipment body (1). Two positioning plates (62) are fixedly connected to the inner wall of the mounting frame (61). A dustproof net (68) is slidably connected to the inner wall of the mounting frame (61). A threaded rod (63) is threadedly inserted into the mounting frame (61). An L-shaped plate (64) is rotatably connected to one end of the threaded rod (63). The L-shaped plate (64) abuts against one side of the dustproof net (68). A round shaft (65) is fixedly connected to the end of the threaded rod (63) away from the L-shaped plate (64).

6. The integrated spraying and drying equipment with precise metering function according to claim 5, characterized in that: A limiting rod (66) is slidably inserted into the mounting bracket (61), and one end of the limiting rod (66) is fixedly connected to the L-shaped plate (64).

7. The integrated spraying and drying equipment with precise metering function according to claim 5, characterized in that: The circular shaft (65) has a plurality of anti-slip grooves (67) on its arc surface, and the plurality of anti-slip grooves (67) are evenly distributed in a circumferential array on the arc surface of the circular shaft (65).

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