PCB spraying device

Abstract

The utility model discloses a PCB spraying device. The PCB spraying device comprises a rack; the conveying mechanism is arranged on the rack, and the conveying mechanism is used for conveying a PCB (Printed Circuit Board); the oil baffle mechanism comprises a fixing plate and an oil baffle plate, the fixing plate is arranged on the outer wall of the conveying mechanism, a connecting plate is arranged at the top of the fixing plate, a fixing hole is formed in the connecting plate, the oil baffle plate is arranged above the connecting plate, an adjusting hole is formed in the oil baffle plate, the adjusting hole is a long hole, and the oil baffle plate is arranged in the adjusting hole. The adjusting hole is connected with the fixing hole through a screw, and the free end of the oil baffle plate extends to the position above the PCB. And the spraying mechanism is arranged above the conveying mechanism, the sliding direction of the spraying mechanism is perpendicular to the conveying direction of the conveying mechanism, and the spraying mechanism is used for spraying solder resist ink on the PCB.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board production and processing, and in particular to a PCB board spraying device. Background Art

[0002] PCB board is a printed circuit board, which is the support body of important electronic components and electronic elements, and the carrier for the electrical connection of electronic components. During the processing of PCB board, solder mask ink needs to be sprayed. Solder mask ink is the protective layer and solder mask of PCB board, which can protect copper wire from corrosion and oxidation in the external environment, and can also ensure the accuracy of soldering of electronic components.

[0003] Solder mask ink is applied to PCBs using a low-pressure sprayer. However, as the spray gun moves back and forth, spraying solder mask ink across the entire PCB. Because the edges of the PCB come into contact with the conveyor mechanism, solder mask ink can accumulate on the edges, preventing the PCB from being fully dried during subsequent drying, impacting product quality. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a PCB board spraying device that can block oil from the edges of PCB boards, achieving ink-free production of PCB boards, solving the problem of ink accumulation at the edges of PCB boards that prevents them from being fully dried, and improving the quality of PCB boards.

[0005] According to the embodiment of the present application, the PCB board spraying device includes: a frame; a conveying mechanism, which is arranged on the frame, and the conveying mechanism is used to convey the PCB board; an oil baffle mechanism, including a fixed plate and an oil baffle plate, the fixed plate is arranged on the outer wall of the conveying mechanism, and the top of the fixed plate is provided with a connecting plate, and the connecting plate is provided with a fixing hole, the oil baffle plate is arranged above the connecting plate, and the oil baffle plate is provided with an adjustment hole, and the adjustment hole is set as an elongated hole, the adjustment hole is connected to the fixing hole by a screw, and the free end of the oil baffle extends above the PCB board; a spraying mechanism, which is arranged above the conveying mechanism, and the sliding direction of the spraying mechanism is set perpendicular to the conveying direction of the conveying mechanism, and the spraying mechanism is used to spray the solder resist ink on the PCB board.

[0006] The PCB board spraying device described in the embodiment of the present application has at least the following beneficial effects: by providing an oil baffle mechanism, the edge of the PCB board can be baffled with oil, thereby achieving ink-free production of the PCB board edge, solving the problem of insufficient drying due to ink accumulation at the edge of the PCB board, and improving the quality of the PCB board; by setting the adjustment hole as a long hole, the position of the baffle can be adjusted to adapt to the production of PCB boards of different specifications, thereby expanding the scope of application, and having a simple structure and easy operation.

[0007] According to the PCB board spraying device described in the embodiment of the present application, the adjustment hole is provided with an opening, and the opening is located at an end of the adjustment hole away from the PCB board.

[0008] According to the PCB board spraying device described in the embodiment of the present application, the conveying mechanism includes two groups of conveying components, which are respectively arranged on both sides of the frame, and the two groups of conveying components cooperate to convey the PCB board.

[0009] According to the PCB board spraying device described in the embodiment of the present application, the conveying assembly includes a driving wheel, a driven wheel, a chain and a support pin, the driving wheel and the driven wheel are respectively arranged on both sides of the frame, the chain is wound between the driving wheel and the driven wheel, and the support pin is arranged on the chain, and the support pin supports the PCB board.

[0010] According to the PCB board spraying device described in the embodiment of the present application, the support pin is provided with a positioning sleeve, and the positioning sleeve is provided with an inclined surface, and the inclined surface is inclined downward from the chain side toward the PCB board side.

[0011] According to the PCB board spraying device described in the embodiment of the present application, the spraying mechanism includes a transverse movement component and a spray gun, the transverse movement component is mounted above the PCB board, the spray gun is arranged on the transverse movement component, and the transverse movement component drives the spray gun to slide laterally.

[0012] According to the PCB board spraying device described in the embodiment of the present application, the transverse movement assembly is provided with a vertical movement assembly, the spray gun is arranged on the vertical movement assembly, and the vertical movement assembly drives the spray gun to slide vertically.

[0013] According to the PCB board spraying device described in the embodiment of the present application, the spraying mechanism includes an ink tank and a delivery pipe. The ink tank is arranged on the frame, and the two ends of the delivery pipe are respectively connected to the ink tank and the spray gun.

[0014] According to the PCB board spraying device described in the embodiment of the present application, the spraying mechanism also includes a recovery box, the recovery box is provided with a filter element, and the recovery box is connected to the ink box through a recovery pipe.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a PCB board spraying device according to an embodiment of the present application;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a structural schematic diagram of the oil blocking mechanism in the PCB board spraying device according to an embodiment of the present application;

[0020] Figure 4 This is a schematic structural diagram of the conveying mechanism in the PCB board spraying device according to an embodiment of the present application.

[0021] Description of reference numerals:

[0022] Frame 100; conveying mechanism 200; driving wheel 210; driven wheel 220; chain 230; support pin 240; positioning sleeve 250; inclined plane 260; oil baffle mechanism 300; fixing plate 310; oil baffle plate 320; connecting plate 330; fixing hole 340; adjusting hole 350; screw 360; spraying mechanism 400; transverse movement assembly 410; spray gun 420; vertical movement assembly 430; ink tank 440; conveying pipe 450; recovery box 460; recovery bucket 470; recovery pipe 480; PCB board 500. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0024] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0025] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted, connected, and connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] The following combination Figures 1 to 4 , a detailed description of the PCB board spraying device of this application is given.

[0028] Reference Figures 1 to 3 The embodiment of the present application provides a PCB board spraying device, comprising: a frame 100; a conveying mechanism 200, which is arranged on the frame 100 and is used to convey the PCB board 500; an oil baffle mechanism 300, which comprises a fixing plate 310 and an oil baffle plate 320, wherein the fixing plate 310 is arranged on the outer wall of the conveying mechanism 200, a connecting plate 330 is arranged on the top of the fixing plate 310, and the connecting plate 330 is provided with a fixing hole 340, and the oil baffle plate 320 is arranged on the connecting plate Above 330, the oil baffle plate 320 is provided with an adjustment hole 350, which is set as an elongated hole. The adjustment hole 350 is connected to the fixing hole 340 by a screw 360, and the free end of the oil baffle plate 320 extends above the PCB board 500; the spraying mechanism 400 is arranged above the conveying mechanism 200, and the sliding direction of the spraying mechanism 400 is set perpendicular to the conveying direction of the conveying mechanism 200. The spraying mechanism 400 is used to spray the solder mask ink on the PCB board 500.

[0029] By providing the oil baffle mechanism 300, the edge of the PCB board 500 can be baffled with oil, thereby achieving ink-free production at the edge of the PCB board 500, solving the problem of insufficient drying due to ink accumulation at the edge of the PCB board 500, and improving the quality of the PCB board 500; by setting the adjustment hole 350 as a long hole, the position of the baffle can be adjusted to adapt to the production of PCB boards 500 of different specifications, thereby expanding the scope of application, having a simple structure and easy operation.

[0030] Adjustment hole 350 is provided with an opening located at the end of adjustment hole 350 away from PCB board 500. The provision of the opening in adjustment hole 350 allows screw 360 to enter and exit adjustment hole 350 along the opening, eliminating the need to completely remove screw 360. This simplifies the structure and facilitates operation. Of course, the opening can also be provided on the side of adjustment hole 350, and this application is not limited thereto.

[0031] Reference Figure 1 and Figure 4 In this embodiment, the conveying mechanism 200 includes two conveying assemblies, one on each side of the frame 100, which cooperate to transport the PCB board 500. During operation, the two conveying assemblies cooperate to transport the PCB board 500, resulting in a simple structure and easy operation. Furthermore, the conveying assembly includes a driving wheel 210, a driven wheel 220, a chain 230, and a support pin 240. The driving wheel 210 and the driven wheel 220 are respectively disposed on either side of the frame 100. The chain 230 is wound between the driving wheel 210 and the driven wheel 220. The support pin 240 is disposed on the chain 230 and supports the PCB board 500. The support pin 240 supports both ends of the PCB board 500. Subsequently, the driving wheel 210 rotates, driving the driven wheel 220 to rotate, which in turn causes the chain 230 to drive the support pin 240 to move, thereby transporting the PCB board 500. By using support pins 240 to support the PCB 500, the distance between the PCB 500 and the chain 230 is increased, thereby preventing solder mask ink from splashing onto the chain 230 and protecting the chain 230. As can be expected, the support pins 240 are equipped with positioning sleeves 250, which are provided with inclined surfaces 260 that slope downward from the chain 230 side toward the PCB 500 side. The positioning sleeves 250 ensure that the PCB 500 is positioned correctly when it lands on the positioning sleeves 250, preventing jamming when docking with other conveyor lines. The inclined surfaces 260 are inclined at a 45-degree angle, which helps the PCB 500 land securely on the protruding portion of the support pins 240, preventing rebound caused by excessive inclination or failure to land on the protruding portion of the support pins 240 due to excessive inclination.

[0032] It should be noted that the conveyor assembly may also include conveyor rollers and a conveyor belt. The conveyor rollers are rotatably mounted at both ends of the frame 100, and the conveyor belt is wound between the conveyor rollers. The PCB 500 is placed on the conveyor belt. The rotation of the conveyor rollers drives the conveyor belt, thereby conveying the PCB 500. This provides a simple structure and easy operation. The configuration of the conveyor assembly can be determined according to specific circumstances and is not limited in this application.

[0033] Reference Figure 1 The spraying mechanism 400 includes a transverse moving assembly 410 and a spray gun 420. The transverse moving assembly 410 is mounted above the PCB board 500, and the spray gun 420 is arranged on the transverse moving assembly 410. The transverse moving assembly 410 drives the spray gun 420 to slide transversely. The transverse moving assembly 410 drives the spray gun 420 to move transversely, thereby achieving spraying of the PCB board 500 and improving the spraying quality. It can be imagined that the transverse moving assembly 410 is provided with a vertical moving assembly 430, and the spray gun 420 is arranged on the vertical moving assembly 430. The vertical moving assembly 430 drives the spray gun 420 to slide vertically. By providing the vertical moving assembly 430, the height of the spray gun 420 can be adjusted to meet the spraying requirements of different PCB boards 500, thereby expanding the scope of application.

[0034] It should be noted that the transverse movement assembly 410 and the vertical movement assembly 430 can be implemented by means of screw nuts or cylinders, and this application does not impose any restrictions on this.

[0035] Reference Figure 1 In a specific embodiment of the present application, the spraying mechanism 400 includes an ink tank 440 and a delivery pipe 450. The ink tank 440 is disposed on the frame 100, and the two ends of the delivery pipe 450 are connected to the ink tank 440 and the spray gun 420, respectively. Specifically, the solder resist ink in the ink tank 440 is transported to the spray gun 420 via the delivery pipe 450, and the spray gun 420 atomizes and sprays the solder resist ink, thereby spraying the PCB board 500. Furthermore, the spraying mechanism 400 also includes a recovery box 460, which is equipped with a filter element and is connected to the ink tank 440 via a recovery pipe 480. The recovery box 460 is equipped with a recovery hopper 470, which is located below the spray gun 420. When the spray gun 420 is spraying, the solder resist ink sprayed on the outside of the PCB board 500 will enter the recovery box 460 through the recovery bucket 470, and the solder resist ink in the recovery box 460 will be filtered by the filter element, and finally enter the ink box 440 through the recovery pipe 480, thereby realizing the recycling of the solder resist ink, saving resources, reducing costs, and complying with sustainable development.

[0036] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. PCB board spraying device, characterized in that, include: frame; A conveying mechanism is provided on the frame, and is used to convey PCB boards; The oil baffle mechanism includes a fixed plate and an oil baffle, wherein the fixed plate is arranged on the outer wall of the conveying mechanism, a connecting plate is provided on the top of the fixed plate, the connecting plate is provided with a fixing hole, the oil baffle is arranged above the connecting plate, the oil baffle is provided with an adjustment hole, the adjustment hole is set as an elongated hole, the adjustment hole is connected to the fixing hole by a screw, and the free end of the oil baffle extends above the PCB board; The spraying mechanism is arranged above the conveying mechanism, the sliding direction of the spraying mechanism is arranged perpendicular to the conveying direction of the conveying mechanism, and the spraying mechanism is used to spray the solder resist ink on the PCB board.

2. The PCB board spraying device according to claim 1, characterized in that: The adjustment hole is provided with an opening, and the opening is located at an end of the adjustment hole away from the PCB board.

3. The PCB board spraying device according to claim 1, characterized in that: The conveying mechanism includes two groups of conveying components, which are respectively arranged on both sides of the frame, and the two groups of conveying components cooperate to convey the PCB board.

4. The PCB board spraying device according to claim 3, characterized in that: The conveying assembly includes a driving wheel, a driven wheel, a chain and a support pin. The driving wheel and the driven wheel are respectively arranged on both sides of the frame. The chain is wound between the driving wheel and the driven wheel. The support pin is arranged on the chain, and the support pin supports the PCB board.

5. The PCB board spraying device according to claim 4, characterized in that: The support pin is provided with a positioning sleeve, and the positioning sleeve is provided with an inclined surface, and the inclined surface is inclined downward from one side of the chain toward one side of the PCB board.

6. The PCB board spraying device according to claim 1, characterized in that: The spraying mechanism includes a transverse movement component and a spray gun. The transverse movement component is mounted above the PCB board, and the spray gun is arranged on the transverse movement component. The transverse movement component drives the spray gun to slide transversely.

7. The PCB board spraying device according to claim 6, characterized in that: The transverse moving assembly is provided with a vertical moving assembly, the spray gun is arranged on the vertical moving assembly, and the vertical moving assembly drives the spray gun to slide vertically.

8. The PCB board spraying device according to claim 6, characterized in that: The spraying mechanism includes an ink box and a delivery pipe. The ink box is arranged on the frame, and both ends of the delivery pipe are connected to the ink box and the spray gun respectively.

9. The PCB board spraying device according to claim 8, characterized in that: The spraying mechanism further includes a recovery box, which is provided with a filter element. The recovery box is connected to the ink box through a recovery pipe.

Images