Ink detection table in PCB hole

Abstract

The utility model relates to the technical field of PCB production equipment, and provides a PCB in-hole ink detection table which comprises a workbench, and the workbench is provided with a first light source assembly and a second light source assembly. The first light source assembly is arranged over the workbench and used for providing light perpendicular to the workbench. The second light source assembly is arranged on the side face of the workbench and used for providing light horizontal to the workbench. The first light source assembly perpendicular to the workbench and the second light source assembly horizontal to the workbench are arranged on the detection table, and the design mode of the light sources enables workers to clearly observe residual ink in holes of the PCBs, so that the rejection rate of the PCBs is greatly reduced, and production benefits are improved.

Description

Technical Field

[0001] The present application relates to the technical field of PCB production equipment, and specifically to a PCB board hole ink detection station. Background Art

[0002] During the PCB manufacturing process, a layer of ink is applied to the surface of the board to ensure insulation between circuits and prevent corrosion of the copper layer. Solder mask is typically applied by spraying or silkscreening, which inevitably causes ink to flow into the holes. During development, residual ink in the holes prevents the surface from producing a solderable layer, which can lead to problems when soldering components.

[0003] Existing PCB inspection platforms typically feature light sources at the bottom and top of the inspection platform. However, this dual-light setup creates significant blind spots, making it difficult to detect ink residue in holes after solder mask development, especially when only slight ink residue remains or the hole diameter is small. This residual ink is only discovered when a solderable layer is created on the copper surface, as there is no solderable layer on the copper surface, rendering the PCB scrapped.

[0004] CN212410472U discloses a solder resist ink hole inspection auxiliary device, comprising a support column, the side of the support column is fixedly connected to a crossbeam, the back of the support column is fixedly connected to a table top, the upper surface of the table top is respectively fixedly connected to a slide rail and a support lamp holder, the inner wall of the slide rail is slidably connected to a slider, the upper surface of the slider is fixedly connected to a support rod, the top of the support rod is fixedly connected to a light-transmitting layer, the side bottom of the light-transmitting layer is overlapped with a baffle, and the back of the support lamp holder is fixedly connected to a lamp tube. The solder resist ink hole inspection auxiliary device, by providing a table top, a transparent plate, a slide rail and a lamp tube, is convenient for providing light through the lamp tube during inspection; in addition, the light-transmitting layer glass table top can be adjusted in angle according to the forward and backward movement of the slide rail, so as to facilitate the adjustment of the angle to meet the needs of printed circuit boards with different thicknesses and aperture sizes of the holes to be inspected, thereby reducing employee fatigue, production costs and leakage rates.

[0005] CN202814889U discloses a PCB board lighting inspection table, including a table, the table top of which forms an acute angle with the horizontal plane; the table top is provided with an opening, and a glass is provided on the opening; a baffle is provided on the lower edge of the table top; a working panel is provided below the bottom of the table top, the working panel and the table top form a space, and a first fluorescent lamp is placed in the space; the position of the first fluorescent lamp corresponds to the position of the glass.

[0006] The light sources of the above two patent documents are both located below the PCB board. When the PCB board is tilted, it is still difficult to detect the ink in the hole after the solder mask is developed.

[0007] Based on this, the technical problem to be solved by this application is: how to solve the problem that the residual ink in the holes of the PCB board is difficult to detect. Utility Model Content

[0008] To solve the above technical problems, the present application provides a PCB board hole ink detection platform, which is equipped with a first light source assembly perpendicular to the workbench and a second light source assembly horizontal to the workbench. The design of this light source enables workers to clearly observe the residual ink in the PCB board hole, thereby greatly reducing the PCB board scrap rate and improving production efficiency.

[0009] The technical solution of this application is:

[0010] A PCB board in-hole ink detection platform includes a workbench, on which a first light source assembly and a second light source assembly are provided; the first light source assembly is arranged directly above the workbench and is used to provide light perpendicular to the workbench; the second light source assembly is arranged on the side of the workbench and is used to provide light horizontally to the workbench.

[0011] In the above-mentioned PCB board hole ink detection station, the first light source assembly includes a lampshade and a first LED lamp group arranged on the workbench; the lampshade is arranged above the workbench; and the first LED lamp group is arranged in the lampshade.

[0012] In the above-mentioned PCB board hole ink detection table, the second light source assembly includes a curtain and a second LED light group arranged on the workbench; the curtain is arranged perpendicular to the ground; and the second LED light group is arranged between the curtain and the workbench.

[0013] In the above-mentioned PCB board in-hole ink detection table, the workbench includes a support frame, a work panel arranged on the support frame, a side panel and a top panel; the work panel is arranged horizontally on the ground; the side panel is perpendicular to the ground and arranged on one side of the work panel; the top panel is horizontal to the ground and arranged directly above the work panel.

[0014] In the above-mentioned PCB board in-hole ink detection station, the first light source assembly is arranged on the top plate to provide light perpendicular to the working panel; the second light source assembly is arranged on the side plate to provide light horizontal to the working panel.

[0015] In the above-mentioned PCB board hole ink detection station, the curtain is a white acrylic transparent board.

[0016] In the above-mentioned PCB board in-hole ink detection station, the upper surface of the working panel is provided with a reflective layer.

[0017] In the above-mentioned PCB board hole ink detection platform, the workbench is also provided with a light source switch for controlling the opening and closing of the first light source assembly and the second light source assembly.

[0018] One of the above technical solutions of this application has at least one of the following advantages or beneficial effects:

[0019] This application provides a first light source assembly perpendicular to the workbench and a second light source assembly horizontal to the workbench on the inspection table. Compared with the method of setting the light source above and / or below, the light source setting method of this application can avoid the PCB board itself blocking the light source when it is tilted, allowing the staff to clearly observe the ink remaining in the PCB board hole, thereby greatly reducing the scrap rate of PCB boards and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the PCB board hole ink detection station of Example 1 of the present application;

[0021] Figure 2 This is a front view of the ink in-hole detection station for a PCB board according to Example 1 of the present application;

[0022] Figure 3 This is a side view of the ink in-hole detection station of Example 1 of the present application.

[0023] Description of reference numerals:

[0024] 1. Workbench; 11. Support frame; 12. Work panel; 121. Reflective layer; 13. Side panel; 14. Top panel; 2. First light source assembly; 21. Lampshade; 22. First LED light group; 3. Second light source assembly; 31. Curtain; 32. Second LED light group; 4. Light source switch. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] Example 1

[0027] refer to Figures 1 to 3 A PCB board hole ink detection platform includes a workbench 1, on which a first light source assembly 2 and a second light source assembly 3 are provided; the first light source assembly 2 is arranged directly above the workbench 1 and is used to provide light perpendicular to the workbench 1; the second light source assembly 3 is arranged on the side of the workbench 1 and is used to provide light horizontally to the workbench 1.

[0028] In actual application, the staff faces the second light source assembly 3, and then the staff first places the PCB vertically on the workbench 1, so that the second light source assembly 3 is horizontally projected into the hole, and then slowly tilts the PCB board 5 to 10 degrees. At this time, the first light source assembly 2 is also projected into the hole. Under the different angles of the first light source assembly 2 and the second light source assembly 3 and at the same time, if there is ink residue in the hole, the staff can clearly and quickly find the residual ink in the hole.

[0029] In this embodiment, a first light source assembly 2 perpendicular to the workbench 1 and a second light source assembly 3 horizontal to the workbench 1 are provided on the inspection table. Compared with the method of arranging the light source above and / or below, the light source arrangement method of the present application can avoid the PCB board itself blocking the light source when it is tilted, so that the staff can clearly observe the ink remaining in the hole of the PCB board, thereby greatly reducing the scrap rate of the PCB board and improving production efficiency.

[0030] In this embodiment, specifically, the first light source assembly 2 includes a lampshade 21 and a first LED light group 22, which are disposed on the workbench 1. The lampshade 21 is disposed above the workbench 1; the first LED light group 22 is disposed within the lampshade 21. Preferably, the lampshade 21 of this embodiment is arc-shaped. With this design, the arc-shaped lampshade 21 can focus the light from the first LED light group 22 onto the workbench 1, which not only makes it easier for workers to detect ink residue in the holes, but also prevents light from directly shining into the workers' eyes, thus protecting their eyes.

[0031] In this embodiment, more specifically, the second light source assembly 3 comprises a screen 31 and a second LED light group 32, mounted on the workbench 1. The screen 31 is arranged perpendicular to the ground, and the second LED light group 32 is positioned between the screen 31 and the workbench 1. Preferably, in this embodiment, the screen 31 is a white, translucent acrylic sheet; however, other translucent materials are acceptable in other embodiments. With this design, the screen 31 forms a white background. Against this backdrop, any ink residue in the hole will appear matte and dark on the copper layer of the PCB board, making it easily visible to staff.

[0032] In this embodiment, it should be noted that the first LED light group 22 and the second LED light group 32 are both composed of two white light tubes.

[0033] In actual application, the workbench 1 includes a support frame 11, a work panel 12 arranged on the support frame 11, a side panel 13 and a top panel 14; the work panel 12 is arranged horizontally on the ground; the side panel 13 is perpendicular to the ground and arranged on one side of the work panel 12; the top panel 14 is horizontal to the ground and arranged directly above the work panel 12.

[0034] Specifically, the first light source assembly 2 is disposed on the top panel 14 to provide light perpendicular to the working panel 12 ; the second light source assembly 3 is disposed on the side panel 13 to provide light horizontal to the working panel 12 .

[0035] In this embodiment, in detail, the lampshade 21 of the first light source assembly 2 is fixed on the top plate 14 , the first LED lamp group 22 is fixed on the lampshade 21 , the curtain 31 of the second light source assembly 3 is fixed on the side plate 13 , and the second LED lamp group 32 is surrounded by the curtain 31 .

[0036] As a preferred feature of this embodiment, the upper surface of the work panel 12 is provided with a reflective layer 121. Preferably, the reflective layer 121 in this embodiment is a layer of white cloth, although a white coating may also be used in other embodiments. This has the advantage of providing a uniform color tone across the entire workbench 1. If there is residual ink in a hole, the operator can detect the matte, dark area regardless of the angle, further improving detection reliability.

[0037] In actual application, the workbench 1 is further provided with a light source switch 4 for controlling the on / off of the first light source assembly 2 and the second light source assembly 3. Obviously, this design is a common method used by those skilled in the art, so no additional explanation is given in this embodiment.

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

Claims

1. A PCB board hole ink detection station, including a workbench, characterized in that: The workbench is provided with a first light source assembly and a second light source assembly; the first light source assembly is arranged directly above the workbench and is used to provide light perpendicular to the workbench; the second light source assembly is arranged on the side of the workbench and is used to provide light horizontal to the workbench.

2. The PCB board hole ink detection station according to claim 1, characterized in that: The first light source assembly includes a lampshade and a first LED lamp group arranged on the workbench; the lampshade is arranged above the workbench; and the first LED lamp group is arranged in the lampshade.

3. The PCB board hole ink detection station according to claim 2, characterized in that: The second light source assembly includes a curtain set on the workbench and a second LED light group; the curtain is arranged perpendicular to the ground; and the second LED light group is arranged between the curtain and the workbench.

4. The PCB board hole ink detection station according to claim 3, characterized in that: The workbench includes a support frame, a work panel arranged on the support frame, side panels and a top panel; the work panel is arranged horizontally on the ground; the side panels are perpendicular to the ground and arranged on one side of the work panel; the top panel is horizontal to the ground and arranged directly above the work panel.

5. The PCB board hole ink detection station according to claim 4, characterized in that: The first light source assembly is arranged on the top plate to provide light perpendicular to the working panel; the second light source assembly is arranged on the side plate to provide light horizontal to the working panel.

6. The PCB board hole ink detection station according to claim 3, characterized in that: The curtain is a white acrylic light-transmitting plate.

7. The PCB board hole ink detection station according to claim 4, characterized in that: The upper surface of the working panel is provided with a reflective layer.

8. The PCB board hole ink detection station according to claim 1, characterized in that: The workbench is also provided with a light source switch for controlling the opening and closing of the first light source assembly and the second light source assembly.

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