Device for detecting pinholes in surface of electrolytic copper foil

Abstract

The utility model relates to the technical field of electrolytic copper foil production, in particular to a device for detecting pinholes in the surface of electrolytic copper foil. The device comprises a bracket, a lamp box, an observation box, a door plate and a door plate slideway, a lamp tube is mounted in the lamp box, the top surface of the lamp box is a transparent glass plate, a plurality of photosensitive probes are mounted on the inner side of the top surface of the observation box, and the slideway is mounted on the inner side of the side surface of the observation box; and the photosensitive probe and the manipulator are electrically connected with a centralized control system. According to the device, a light source penetrates through small holes possibly formed in the copper foil, the device is free of environmental pollution and sensitive in detection, meanwhile, the light which possibly penetrates through is detected through the photosensitive probe, and possible errors caused by light leakage of the device and different light sensitivity degrees of operators are eliminated; and the control system controls the movable manipulator arranged in the observation box to mark the place where the small hole appears, so that the situation that the small hole cannot be accurately found when the copper foil is taken out is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil production technology, and specifically to a device for detecting pinholes on the surface of electrolytic copper foil. Background Technology

[0002] During the production of electrolytic copper foil, pinholes of varying sizes can form on the surface of the copper foil due to factors such as the production environment, equipment, processes, and personnel operation. When pinholes appear on the surface of electronic circuit copper foil, the resin in the prepreg during the next pressing process can seep through the copper foil and solidify into bumps on the steel plate. If not removed in time, these bumps will cause pits in subsequent production processes, affecting the quality of the final product and even causing it to be scrapped. Therefore, pinholes are a crucial factor that must be controlled during the production of electrolytic copper foil.

[0003] The common method for detecting pinholes on copper foil surfaces involves manually applying dilute sulfuric acid to the entire width of the smooth surface of the copper foil multiplied by the circumference of the cathode roller during the winding and unwinding process. One person pulls out the entire width of copper foil, while another person applies the dilute sulfuric acid to the smooth surface using a roller. After a short time, the rough surface of the copper foil is visually inspected for pinholes. This method is not only labor-intensive and inefficient, but the corrosive and irritating odor of dilute sulfuric acid poses safety hazards if not handled properly. Even with more automated equipment, such as the detection device for penetration points and pinholes in electrolytic copper foil disclosed in Chinese Patent CN109001223A, the use of acidic reagents still poses risks of equipment corrosion and environmental pollution. Utility Model Content

[0004] Therefore, in order to solve the problems of the prior art, this utility model provides an environmentally friendly and efficient device for detecting pinholes on the surface of electrolytic copper foil, the specific solution of which is as follows:

[0005] A device for detecting pinholes on the surface of electrolytic copper foil includes: a bracket, a light box, an observation box, a door panel, and a door panel slide rail. The light box and the observation box are sequentially arranged on the bracket. A door panel slide rail and a door panel movably connected to the door panel slide rail are installed on the side of the observation box. A lamp tube is installed inside the light box, and the top surface of the light box is a transparent glass plate. Multiple photosensitive probes are installed on the inner side of the top surface of the observation box. A slide rail is installed on the inner side of the observation box, and a telescopic manipulator is installed on the slide rail. A marker pen is fixed on the manipulator. The photosensitive probes and the manipulator are electrically connected to a centralized control system.

[0006] Furthermore, the light box is equipped with LED tubes, wires, and a power switch.

[0007] Furthermore, the thickness of the transparent glass plate is 5-8 mm.

[0008] Furthermore, the bracket is welded from stainless steel angle iron.

[0009] Furthermore, the photosensitive probe is a photosensitive camera or a photosensitive sensor.

[0010] The beneficial effects of this invention are as follows: This device utilizes a light source that passes through potential small holes in the copper foil, resulting in no environmental pollution and high detection sensitivity. Simultaneously, a photosensitive probe detects any transmitted light, eliminating potential errors caused by light leakage or varying degrees of operator sensitivity. Furthermore, a control system controls a movable robotic arm housed within an observation box to mark locations where small holes appear, preventing issues from arising when the copper foil is removed and the holes cannot be accurately located. This device is characterized by its simple operation, high detection sensitivity, high efficiency, low labor intensity, and safety and environmental friendliness. Attached Figure Description

[0011] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0012] Figure 1 The front view of the device structure of this utility model is shown;

[0013] Figure 2 The left view shows a schematic diagram of the device structure of this utility model.

[0014] Among them, 1-bracket, 2-lightbox, 3-observation box, 4-door panel, 5-door panel slide, 6-photosensitive probe, 7-slide, 8-robotic arm. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0016] In one embodiment, a device for detecting pinholes on the surface of electrolytic copper foil includes: a bracket 1 welded from stainless steel angle iron, a light box 2, an observation box 3, a door panel 4, and a door panel slide rail 5. The light box 2 and the observation box 3 are sequentially mounted on the bracket 1, with the observation box 3 located above the light box 2. A door panel slide rail 5 and a door panel 4 movably connected to the door panel slide rail 5 are installed on the side of the observation box 3. LED tubes, wires, and a power switch are bolted and installed inside the light box 2, and the top surface of the light box 2 is a 5mm transparent glass plate. Multiple photosensitive probes 6, specifically photosensitive cameras, are installed on the inner side of the top surface of the observation box 3. A horizontal slide rail 7 is installed on the inner side of the observation box 3, and a telescopic robotic arm 8 is mounted on the slide rail 7. A marker pen is fixed on the robotic arm 8. The photosensitive cameras and the robotic arm 8 are electrically connected to a centralized control system. The light box 2, the observation box 3, and the door panel 4 are all made of stainless steel.

[0017] Slide open door panel 4, cut lithium battery copper foil or electronic circuit copper foil into 300mm*cathode roller width and place it on observation box 3. Slide close door panel 4 to create a sealed dark environment inside the observation box. Turn on power switch to start light box 2. Light is transmitted through transparent glass plate. Photosensitive camera detects photoelectric effect and determines position via control system. Control telescopic robot 8 to move and extend. Mark the position where light spot is detected. Check and mark pinholes on copper foil surface. If no light spot is detected, there are no pinholes on copper foil surface.

[0018] The device for detecting pinholes on the surface of electrolytic copper foil has proven highly effective in electrolytic copper foil production. The entire device is constructed from stainless steel, offering advantages such as wear resistance, corrosion resistance, and long service life. The device is simple in design, easy to operate, time-saving, labor-saving, and also features high efficiency, low labor intensity, and safety and environmental friendliness.

[0019] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A device for detecting pinholes on the surface of electrolytic copper foil, characterized in that, include: The bracket (1), light box (2), observation box (3), door panel (4) and door panel slide (5) are arranged in sequence on the bracket (1). The door panel slide (5) and the door panel (4) are movably connected to the door panel slide (5) on the side of the observation box (3). The light box (2) is equipped with a lamp tube and the top surface of the light box (2) is a transparent glass plate. Multiple photosensitive probes (6) are installed on the inner side of the top surface of the observation box (3). The slide (7) is installed on the inner side of the side of the observation box (3). A telescopic manipulator (8) is installed on the slide (7). A marker pen is fixed on the manipulator (8). The photosensitive probes (6) and the manipulator (8) are electrically connected to a centralized control system.

2. The device for detecting pinholes on the surface of electrolytic copper foil according to claim 1, characterized in that, The light box (2) is equipped with LED tubes, wires and power switches.

3. The device for detecting pinholes on the surface of electrolytic copper foil according to claim 1, characterized in that, The thickness of the transparent glass plate is 5-8mm.

4. The device for detecting pinholes on the surface of electrolytic copper foil according to claim 1, characterized in that, The bracket (1) is welded from stainless steel angle iron.

5. The device for detecting pinholes on the surface of electrolytic copper foil according to claim 1, characterized in that, The photosensitive probe (6) is a photosensitive camera or a photosensitive sensor.

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