Copper-clad plate copper-clad quality detection system

Abstract

The invention discloses a copper-clad plate copper-clad quality detection system, and relates to the technical field of copper-clad plate quality detection, the copper-clad plate copper-clad quality detection system comprises a host and a detection device, the detection device comprises a machine body, a moving assembly, a coloring mechanism for smearing a colored liquid on a copper-clad plate, a scraping strip for wiping away the colored liquid, and a camera; the machine body is provided with a detection groove, the side wall of the detection groove is provided with a material opening for a copper-clad plate to enter and exit, the moving assembly is arranged at the top of the detection groove, the copper-clad plate is located below the moving assembly, and the coloring mechanism and the scraping strip are movably installed at the two ends of the moving assembly respectively and are driven by the moving assembly in the arrangement direction. The scraping strip abuts against the upper surface of the copper-clad plate, the camera is used for shooting the copper-clad plate in an overlook posture, and the moving assembly, the camera and the coloring mechanism are electrically connected to the host. The method has the effects of improving the defect detection accuracy of the copper-clad plate and improving the product quality of the copper-clad plate.

Description

Technical Field

[0001] The present application relates to the field of copper clad laminate quality inspection, and in particular to a copper clad laminate copper quality inspection system. Background Art

[0002] Copper clad laminate refers to a plate-like material made by impregnating electronic glass fiber cloth or other reinforcing materials with resin, covering one or both sides with copper foil and hot pressing. It can be used to process into printed circuit boards. Since bubbles will appear between the copper foil and the glass fiber cloth during the processing of copper clad laminates, the bubbles will cool down after hot pressing, causing the bubble area on the surface of the copper clad laminate to be concave, affecting the quality of the copper clad laminate. Therefore, it is necessary to conduct quality inspection on copper clad laminates. One of the existing quality inspections for copper clad laminates is automatic inspection using machine vision.

[0003] In the automatic inspection of the machine, the copper clad laminate needs to be placed on the working platform of the machine, and then sent into the machine, the built-in light is turned on to illuminate the copper clad laminate, and the camera is used to collect the image of the copper clad laminate for identification and analysis. However, the copper foil covering the surface of the newly processed copper clad laminate is very smooth and easy to reflect light, which causes the image captured by the lens to be unclear and exposed, and there are omissions in the sag detection, which affects the results of the quality inspection. Therefore, this application proposes a new technical solution. Summary of the invention

[0004] In order to improve the accuracy of copper clad laminate defect detection and improve the quality of copper clad laminate products, the present application provides a copper clad laminate copper quality detection system.

[0005] The present application provides a copper clad laminate copper quality detection system, which adopts the following technical solution:

[0006] A copper-clad laminate copper coating quality detection system comprises a host and a detection device, wherein the detection device comprises a body, a moving component, a coloring mechanism for applying colored liquid to the copper-clad laminate, a scraper for wiping off the colored liquid, and a camera;

[0007] The fuselage is provided with a detection slot, and a material port for copper-clad laminate to enter and exit is opened on the side wall of the detection slot. The moving assembly is arranged at the top of the detection slot, and the copper-clad laminate is located below the moving assembly. The coloring mechanism and the scraper are movably installed at both ends of the moving assembly and are driven by the moving assembly in an arrangement direction. The scraper contacts the upper surface of the copper-clad laminate. The camera is used to shoot the copper-clad laminate in a top-down posture. The moving assembly, the camera and the coloring mechanism are electrically connected to the host, respectively. The host is configured as follows:

[0008] If the copper-clad laminate is in the inspection tank and is located at a preset inspection station, the moving component and the coloring mechanism are controlled to perform a coloring action, and the moving component is controlled to drive the scraper to perform a liquid scraping action on the copper-clad laminate;

[0009] Call the image data after the scraping action on the copper clad board is executed, and perform defect feature recognition and analysis to obtain the analysis results;

[0010] If the analysis results meet the preset defect alarm conditions, the alarm information will be output.

[0011] Optionally, the coloring mechanism includes a skeleton, a coloring strip for coloring, a capillary tube for conveying colored liquid, and an ink cartridge for storing the colored liquid, the capillary tube is built into the coloring strip and a plurality of small holes are provided on the tube wall of the capillary tube, the tube wall of the capillary tube extends an ink passage section outward and is connected to the ink cartridge, the ink cartridge is connected to the top of the detection slot, the coloring strip is fixed to the skeleton, and the skeleton is installed on the moving part of the moving component.

[0012] Optionally, the coloring strips and the skeleton are multiple and one-to-one corresponding, and an electric control valve is installed at the connection between each coloring strip and the ink passing section, and the electric control valve is electrically connected to the host, and the host is configured as follows:

[0013] Perform image measurement based on the image of the copper clad laminate to obtain the current size of the copper clad laminate;

[0014] Determine the number of color strips to be used based on the size of the copper clad board;

[0015] Based on the determined number of color strips, the electronically controlled valves corresponding to the color strips are controlled to open.

[0016] Optionally, the movable component is fixed in the detection groove, and the movable component includes a screw slide, the screw slide is provided with three sliders and the sliders are located below the screw slide, each of the sliders is respectively connected to a bracket, each of the brackets is respectively connected to the coloring strip, the camera and the scraper strip, and the camera is located in the middle of the coloring strip and the scraper strip.

[0017] Optionally, a cleaning box is provided in the detection tank, the cleaning box is formed with a cleaning tank with an upper opening, the cleaning box is located on the side of the chassis where the feeding is completed away from the opening of the detection tank, and the cleaning box is externally connected to a water pump and a waste box, the water pump and the waste box are both installed below the detection tank, one end of the cleaning box is connected to the water delivery end of the water pump, and the other end is connected to the water inlet end of the waste box;

[0018] An electric cylinder is installed on the upper part of the detection groove, and the telescopic end of the electric cylinder is fixed to the side wall of the screw slide away from the slider; two springs are connected to the upper part of the detection groove, one end of the spring is fixed to the fuselage, and the other end is fixed to the screw slide; the springs are respectively located at both ends of the screw slide, and the electric cylinder is electrically connected to the main machine, and the main machine is configured as follows: if the moving component feedbacks that the scraping action on the copper-clad board is completed, the electric cylinder is controlled to move down and stop for t2 time; wherein t2 is a preset value.

[0019] Optionally, the host is electrically connected to a feeding mechanism, which includes a chassis and a sliding unit for moving the chassis, the sliding unit is installed at the bottom of the detection slot, the chassis is embedded with a pressure sensor, the detection end of the pressure sensor protrudes from the upper surface of the chassis, the sliding unit is located at one end of the chassis, and the other end is provided with a guiding component for guiding direction and sliding, and the host is configured as follows: if the value fed back by the pressure sensor is greater than G, the sliding unit is controlled to perform a feeding action; if a defect feature identification and analysis is completed once, the sliding unit is controlled to perform a discharging action, wherein G is a preset value.

[0020] Optionally, it also includes an adsorption component for temporarily positioning the copper-clad board, the adsorption component is located below the detection tank, the chassis is provided with a plurality of through holes, the adsorption component includes an air pumping unit and a plurality of air pipes, one end of the plurality of air pipes is connected to the through hole, and the other end is connected to the air pumping end of the air pumping unit, the air pumping unit is electrically connected to the host, and the host is configured as follows:

[0021] If the sliding unit completes the feeding action, the pumping unit is controlled to work;

[0022] If the air pumping unit works and lasts for t1 time, the moving component and the coloring mechanism will respond; wherein t1 is the preset time to ensure the adsorption effect of the copper clad laminate;

[0023] If the scraping action on the copper-clad laminate is completed, the adsorption component is controlled to stop working, and the sliding unit is controlled to perform the discharging action.

[0024] Optionally, two flow troughs are dug at the bottom of the detection trough, and the two flow troughs are located on both sides of the chassis. There is an inclined transition between the bottom of the detection trough and the opening edge of the flow trough, and the slope gradually increases. Flow troughs are dug at both ends of the bottom plate along the feeding direction, and the flow trough is open to one side of the detection trough opening. The flow trough is set with a slope, and the slope gradually increases from the inside to the outside of the detection trough.

[0025] Optionally, a display module is further included, wherein the display module is data-connected to a host, and the host is configured as follows:

[0026] If defect feature recognition and analysis are performed, the control display module pops up a result prompt window and generates the analysis results as a table;

[0027] The ratio of defective copper clad laminates to non-defective copper clad laminates is calculated based on table analysis. If the calculated ratio is greater than a preset ratio, a warning alarm is issued.

[0028] Optionally, the electrically-controlled valve is a flow regulating valve, and the host is configured to: obtain image data during the coloring action execution phase, perform linear misalignment compensation analysis based on the image data, and control the opening size of the electrically-controlled valve of each coloring strip according to the analysis results.

[0029] In summary, the present application includes the following beneficial technical effects: the copper clad laminate placed in the detection device is colored by a coloring mechanism, and then the ink is scraped off by a scraper. If there are pits in the copper clad laminate, it is easy to identify whether there are defects in the copper clad laminate by color differentiation, and the impact of possible exposure of the image captured by the camera is reduced, thereby improving the accuracy of copper clad laminate defect detection and improving the quality of copper clad laminate products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of this application;

[0031] Figure 2 yes Figure 1 A magnified view of part A;

[0032] Figure 3 is a top view of the feeding mechanism in this application;

[0033] Figure 4 It is a schematic diagram of host connection of this application.

[0034] Explanation of the reference numerals: 1. Main unit; 2. Detection device; 3. Display module; 21. Main body; 22. Moving assembly; 23. Coloring mechanism; 24. Scraper strip; 25. Camera; 26. Feeding mechanism; 27. Air suction unit; 211. Cleaning box; 212. Electric cylinder; 213. Flow trough; 221. Screw slide; 231. Coloring strip; 232. Capillary; 233. Ink cartridge; 234. Electric control valve; 261. Chassis; 262. Sliding unit; 263. Pressure sensor. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a copper clad laminate copper coating quality detection system.

[0037] Reference Figure 1 and Figure 2The copper clad laminate copper coating quality inspection system includes a host 1 and a detection device 2. The detection device 2 includes a body 21, a moving component 22, a coloring mechanism 23, a scraper 24 and a camera 25. The body 21 is a casing for accommodating the detection device 2, and can also be used to install other electrical components. The body 1 can be rectangular when viewed from the front. A detection groove is provided inside the body 21, and a material port for placing the copper clad laminate is opened on the side wall of the detection groove. The detection groove and the material port can be located in the middle section of the body 21, which is more convenient for staff to put in and take out the copper clad laminate.

[0038] Since the presence of bubbles in the copper clad laminate will cause the surface of the copper clad laminate to be concave, the present application first colors the copper clad laminate through a coloring mechanism 23, wherein the coloring can use a brightly colored liquid, such as black ink; then the scraper 24 is used to scrape off the ink on the surface of the copper clad laminate. If there is a concave area, there will be obvious ink residue, which makes it easier for the camera 25 to find defects.

[0039] The following further explains this application:

[0040] The moving component 22 is arranged at the top of the detection tank. The moving component 22 can be used to drive the coloring mechanism 23 to move. The copper clad plate is located below the moving component 22, so as to assist the coloring mechanism 23 in coloring the copper clad plate. The coloring mechanism 23 and the scraper 24 can be two moving parts respectively fixed to the moving component 22 by bolts and nuts, wherein the coloring material can be a brightly colored ink; the scraper 24 is used to scrape off the ink on the surface of the copper clad plate, and the lower surface of the scraper 24 is in contact with the upper surface of the copper clad plate. The camera 25 is installed in the detection tank, and the camera end takes a picture of the copper clad plate in a top-down posture. The moving component 22, the coloring mechanism 23 and the camera 25 are respectively electrically connected to the host 1, and the host 1 is configured as follows:

[0041] If the copper-clad laminate is in the inspection tank and is located at the preset inspection station, the moving component 22 and the coloring mechanism 23 are controlled to perform the coloring action, and the moving component 22 is controlled to drive the scraper to perform the liquid scraping action on the copper-clad laminate. For the preset inspection station, the image in the inspection tank can be photographed by the camera 25, and the host 1 recognizes and analyzes whether the copper-clad laminate is placed in the inspection station. If the host 1 recognizes that the copper-clad laminate has been placed, the moving component 22 can be controlled to start, and the coloring mechanism 23 installed on the sliding part of the moving component 22 can be driven to start coloring. After the coloring is completed, the moving component 22 works in the direction opposite to the coloring direction, so that the scraper can be driven to perform the liquid scraping action.

[0042] The image data after the scraping action on the copper clad laminate is called, and the defect feature recognition and analysis are performed to obtain the analysis result. When the camera 25 finishes shooting the image, the host 1 calls the image shot by the camera 25 and identifies whether there is ink residue in the image. Among them, the newly processed copper clad laminate is mostly yellow, and the ink can be selected in eye-catching colors such as black and blue or a contrasting color of yellow, so that it is possible to find out whether there is ink residue by identifying the color. If there is ink residue, the cause of the ink residue is analyzed to analyze whether the ink residue is due to the scraping strip 24 not being completely scraped or the ink remaining due to the pits on the surface of the copper clad laminate.

[0043] If the analysis result meets the preset defect alarm condition, an alarm message is outputted, wherein the alarm message may be that the host 1 is connected to an audible / optical alarm through a signal line and a power line, and an alarm is issued through the audible / optical alarm.

[0044] In the above arrangement, the coloring mechanism 23 and the scraper bar 24 are both installed on the moving component 22, and at least the distance between the coloring mechanism 23 and the scraper bar 24 is ensured to be greater than the length or width of the copper clad laminate of any specification, so that the moving component 22 completes the coloring work when it moves toward one side, and completes the work of scraping off the ink when it returns to its original position, and only requires one round trip, which is more efficient and convenient.

[0045] According to the above arrangement, based on the characteristic that the copper clad laminate will be concave when there are bubbles, ink is colored on the surface of the copper clad laminate and then scraped off, and an image is captured by the camera 25. The host 1 calls the image and analyzes whether there are bubbles, that is, whether there are obvious ink potholes remaining in the image, so that it can be more conspicuously and efficiently detected whether there are bubble defects in the copper clad laminate.

[0046] The detection using this application also has the following features:

[0047] Qualified copper clad laminates are relatively clean and do not require subsequent cleaning by the staff; while unqualified copper clad laminates will be relatively unclean, but because the unqualified boards will be picked out, it will not have a significant impact on work efficiency, and the unqualified boards will be automatically marked to prevent the staff from accidentally putting a bunch of boards together and mixing unqualified and good quality boards.

[0048] Reference Figure 2 and Figure 3The host 1 is electrically connected to a feeding mechanism 26. The feeding mechanism 26 includes a chassis 261 and a sliding unit 262 for moving the chassis 261. The sliding unit 262 is installed at the bottom of the detection slot. The copper-clad laminate is placed on the chassis 261. This arrangement can facilitate the feeding mechanism 26 to place the copper-clad laminate and leave the upper position for other mechanisms to use for detection. A pressure sensor 263 is embedded inside the chassis 261. The detection end of the pressure sensor 263 protrudes from the upper surface of the chassis 261, so that it can detect whether the copper-clad laminate is placed. The sliding unit 262 is installed inside the fuselage 21 and the chassis 261 is installed on the moving part of the sliding unit 262. The sliding unit 262 is located at the bottom of the detection slot and can be fixedly installed at the bottom of the detection slot by bolts and nuts. The moving part of the sliding unit 262 and the chassis 261 are fixed by bolts and nuts. Among them, the sliding unit 262 can be a linear guide rail, and the chassis 261 is installed on the slider of the linear guide rail.

[0049] The pressure sensor 263 and the sliding unit 262 are electrically connected to the host 1, and the host 1 is configured as follows:

[0050] If the value fed back by the pressure sensor 263 is greater than G, the sliding unit 262 is controlled to perform the feeding action; if a defect feature identification and analysis is completed, the sliding unit 262 is controlled to perform the discharging action. Among them, G is a preset value, which can be determined by the staff according to the possible pressure size of the copper clad laminate. For example, the pressure size that can be generated by the copper clad laminate with the smallest specification is 5, so G can be preset to about 3; because the value fed back by the pressure sensor 263 is not necessarily 0 when the chassis 261 is empty, this setting can effectively prevent misjudgment. When the host 1 completes the analysis of the feature identification this time, it can control the sliding unit 262 to perform the discharging action.

[0051] According to the above configuration, after the copper-clad laminate is placed, the feeding mechanism 26 can be automatically operated. A switch for starting the feeding mechanism 26 can be provided. If the pressure sensor 263 fails, the switch button can also be pressed to allow the host 1 to control the sliding unit 262 to move.

[0052] The sliding unit 262 can be a linear motor, which is fixed to one end of the chassis 261, and the other end of the chassis 261 is provided with a guide assembly for guiding direction and sliding, and the guide assembly can include a guide rod and a sliding block sliding on the guide rod, and the sliding block is fixed to the chassis 261 by bolts and nuts; wherein the bottom of the detection slot can be dug with an empty slot, and the two ends of the guide rod are fixed to the two ends of the length direction of the empty slot. According to the above configuration, only one sliding unit 262 used as a power to push the sliding needs to be installed, and the other end is used as a guide to maintain the balance of the chassis 261.

[0053] The present application also includes an adsorption component, which is used to temporarily position the copper clad laminate and is located below the detection slot. The adsorption component includes a plurality of air pipes and an air pumping unit 27, which is electrically connected to the host 1, wherein the air pumping unit 27 can be a fan, and a mounting slot for installing the fan is dug below the detection slot of the fuselage 21, and the fan can be fixed and installed in the mounting slot inside the fuselage 21 by a bracket and bolts and nuts. The chassis 261 is provided with a plurality of through holes, which are connected to the air pipes. When the copper clad laminate is placed on the chassis 261, the air pumping unit 27 can be started to pump air, so that the copper clad laminate can be fixed to the chassis 261. The specific number of through holes can be determined according to the specifications of the copper clad laminate produced, such as: if the copper clad laminate has multiple types of sizes, and there are copper clad laminates with larger sizes, 5 or more through holes can be selected, so that copper clad laminates of different specifications can be adsorbed and fixed; if there are only copper clad laminates with smaller sizes, only about 3 through holes can be selected in the center for fixing.

[0054] One end of the air pipe is connected to the air inlet end of the fan, wherein the air inlet end of the fan can be provided with a branch component for connecting multiple air pipes, such as: a main pipeline with connecting ports extending in multiple directions, and the ends of the multiple air pipes are respectively connected to the connecting ports of the main pipeline.

[0055] Host 1 is configured as:

[0056] If the sliding unit 262 completes the feeding action, the pumping unit 27 is controlled to work; while the pumping unit 27 is working, the camera 25 captures and uploads image information. The working end signal of the sliding unit 262 can be determined based on whether the sliding unit 262 slides to the end or the specified position. When it has slid to the end or the specified position, the feeding end signal is fed back to the host 1, and the host 1 controls the pumping unit 27 to perform the next step according to the signal.

[0057] If the air pumping unit 27 works and lasts for t1, the moving component 22 and the coloring mechanism 23 are made to respond; wherein t1 is the preset time length to ensure the adsorption effect of the copper clad laminate. The staff can calculate the time to evacuate to vacuum according to the air pumping speed of the air pumping unit 27 and the gas volume in the air pipe, and the value of t1 needs to be greater than the calculated time to ensure the adsorption effect of the copper clad laminate. For example, if it is calculated that it takes 5s to evacuate to vacuum, t1 can be set to 7s.

[0058] If the scraping action on the copper-clad board is completed, the adsorption component is controlled to stop working, and the sliding unit 262 is controlled to perform the discharge action. The scraping action on the copper-clad board is fed back by the moving component 22. If the host 1 receives the feedback that the scraping is completed, the air pumping unit 27 is controlled to stop working or perform the air supply action and control the sliding unit 262 to work, so as to deliver the copper-clad board.

[0059] Reference Figure 2 and Figure 4 The coloring mechanism 23 includes a frame, a coloring strip 231 for coloring, a thin tube 232 for conveying colored liquid, and an ink cartridge 233 for storing the colored liquid. The coloring strip 231 is fixed to the frame, and the frame is installed on the moving part of the moving assembly 22. The frame can be fixed to the moving part of the moving assembly 22 by bolts and nuts, wherein the coloring strip 231 can be a sponge strip, and the frame can be used to support the sponge strip, so as to ensure that it can perform the coloring work.

[0060] The capillary tube 232 is built into the coloring strip 231, and a plurality of small holes are provided on the tube wall of the capillary tube 232, and the small holes are arranged on the tube wall, so that the ink can be discharged more evenly. The tube wall of the capillary tube 232 extends an ink passage section toward the outside and is connected to the ink cartridge 233, and the ink cartridge 233 is connected to the top of the detection slot, which can be connected by a snap connection, for example: the top of the ink cartridge 233 extends a snap block toward the outside along its length direction, and the top of the detection slot extends a connection block for fixing downward, and a groove corresponding to the snap block is dug on the connection block. When the ink cartridge 233 needs to be snap-fitted, it only needs to be aligned with the groove and inserted to fix it. Among them, setting the ink cartridge 233 at the top position is more conducive to the ink output of the ink cartridge 233. The length of the ink passage section connected to the ink cartridge 233 should be greater than the maximum straight-line distance between the ink cartridge 233 and the capillary 232 in the coloring strip 231, so as to avoid the movable component 22 moving the coloring strip 231 too far and causing the capillary 232 to break at the connection.

[0061] In another embodiment of the present application:

[0062] Reference Figure 2 and Figure 4 The skeleton and the coloring strip 231 are divided into multiple sections, and an electric control valve 234 is installed at the connection between each coloring strip 231 and the ink passing section. The electric control valve 234 can be a solenoid valve, and the two ends of the solenoid valve are respectively connected to the coloring strip 231 and the ink passing section, so that by controlling the opening and closing of the solenoid valve, it can be determined whether the coloring strip 231 of this section discharges ink.

[0063] Dividing the coloring strip 231 into multiple sections is beneficial for determining the coloring strip 231 that should be inked according to the different sizes of the copper-clad laminate, thereby effectively reducing the waste of ink and preventing too much ink from overflowing from the detection slot, thereby avoiding affecting the operation of the detection device 2.

[0064] The electric control valve 234 is electrically connected to the host 1, and the host 1 is configured as follows:

[0065] Image measurement is performed based on the image of the copper clad laminate to obtain the current size of the copper clad laminate; wherein the image of the copper clad laminate is uploaded by the camera 25, and the host 1 analyzes the size of the copper clad laminate in the image to obtain the size of the copper clad laminate.

[0066] The number of coloring strips 231 used is determined according to the size of the copper clad laminate. Assuming that the length of each coloring strip 231 is 10 cm, and the length of the copper clad laminate is 18 cm and the width is 8 cm, if the coloring is performed along the length direction of the copper clad laminate, two of the coloring strips 231 need to be controlled for coloring, and if the coloring is performed along the width direction of the copper clad laminate, only one of the coloring strips 231 needs to be controlled for coloring.

[0067] Based on the determined number of coloring strips 231, the electrically-controlled valve 234 of the corresponding sponge strip is controlled to open; this step requires controlling the corresponding electrically-controlled valve 234 according to the above analysis results. The coloring strips 231 of different sections can be numbered in advance, such as 1, 2, 3, 4. If it is necessary to control the ink flow of the two middle sections of the coloring strips 231, then the electrically-controlled valve 234 corresponding to the coloring strips 231 numbered 2 and 3 can be controlled to open.

[0068] Reference Figure 2 and 4 The moving component 22 is fixed in the detection groove, which can be the middle section of the detection groove. The midline position is the best. Installing the moving component 22 at the midline position can keep the two ends as balanced as possible. If the color strip 231 and the scraper are unbalanced, it will cause it to only apply force on one side when working, thereby affecting the detection result.

[0069] The moving assembly 22 includes a screw slide 221, and the screw slide 221 can be fixed to the top of the detection tank by bolts and nuts. The screw slide 221 is provided with three sliders and the sliders are located below the screw slide 221. The coloring strip 231, the camera 25 and the scraper 24 are fixed on the fixed frame extending from the three sliders in sequence, and the camera 25 is located in the middle of the coloring strip 231 and the scraper 24. The distance between the two sliders at both ends needs to be greater than the length of the copper clad board, so that the coloring strip 231 and the scraper can color and scrape the entire copper clad board, and the camera 25 is fixed on the slider in the middle position, so that the camera 25 can be located in the middle position after each work, so that the camera 25 can capture a more comprehensive image.

[0070] Reference Figure 2 and Figure 4A cleaning box 211 is provided in the detection tank, and the length and width of the cleaning box 211 are greater than those of the scraper 24, so that the scraper 24 can be placed in the cleaning box 211 for cleaning; the cleaning box 211 can be located on the side of the chassis where the feeding is completed away from the opening of the detection tank, so as not to hinder the sliding feeding of the chassis 261 of the feeding mechanism 26. A fixed groove can be provided at the bottom of the detection tank, and the cleaning box 211 is placed in the fixed groove. The two ends of the fixed groove are open or provided with through holes for the water supply pipe to pass through. The lower part of the detection tank of the fuselage 21 is hollow, so through holes are provided at both ends of the cleaning box 211 and a water pump (not shown in the figure) and a waste box (not shown in the figure) are connected to the outside through a water pipe. The water pump is connected to a water tank, wherein the water pump, the water tank and the waste box can all be installed below the detection tank, so that they can be hidden inside the device.

[0071] One end of the cleaning box 211 is connected to the water supply end of the water pump through a water pipe, and the other end is connected to the water inlet end of the waste box through a water pipe. The water pump continuously supplies water to keep the water in the cleaning box 211 flowing and clean.

[0072] An electric cylinder 212 is installed on the top of the detection slot. The electric cylinder 212 can be fixed to the body 21 through a bracket, and the telescopic end of the electric cylinder 212 faces downward. The electric cylinder 212 can be located at the center line of the detection slot. The telescopic end of the electric cylinder 212 is fixed to the side wall of the screw slide 221 away from the slider. Two springs are connected to the upper part of the detection slot, one end of the two springs is fixed to the body 21, and the other end is fixed to the screw slide 221, and the two telescopic rods are respectively located at the two ends of the screw slide 221, so that the balance of the screw slide 221 can be better maintained and force can be provided to fix the screw slide 221.

[0073] The electric cylinder 212 is electrically connected to the host 1, and the configuration of the host 1 is: if the moving component 22 feedbacks that the scraping action on the copper-clad laminate is completed, the electric cylinder 212 is controlled to move down and stop for t2 time; wherein t2 is a preset value, which can be determined by the flow rate of the water flow, for example: if the water flow rate is faster, the stop time can be set to 1s, and if the water flow rate is slower, the stop time can be set to 3s.

[0074] In another embodiment of the present application:

[0075] Two flow troughs 213 are dug at the bottom of the detection trough, and the two flow troughs 213 are located on both sides of the chassis 261. The bottom of the flow trough 213 is inclined along the feeding direction, and the slope gradually increases from the inside of the detection trough to the outside of the detection trough; the bottom of the detection trough and the opening edge of the flow trough 213 are inclined, and the slope gradually increases, forming a form of high in the middle and low on both sides. According to the above arrangement, the ink overflowed when the coloring strip 231 is colored can be drained to the outside of the detection trough and collected. The flow trough 213 opens at one end of the detection trough opening so that the ink flowing into the flow trough 213 can flow out, and a collection box can be installed on the outer wall of the fuselage 21 to collect the outflowing ink.

[0076] In another embodiment of the present application:

[0077] It also includes a display module 3, the host 1 is data-connected to the display module 3, the display module 3 can be a display, the display and the host 1 can be connected via a VGA cable and installed on the side of the detection device 2, so as to facilitate the operation of the staff.

[0078] The host 1 is configured as follows: if defect feature identification and analysis are performed, the display module 3 is controlled to pop up a result prompt window, and the analysis results are generated as a table; wherein, in order to facilitate distinction, the result prompt window can be set with different colors, for example: if the detection is flawless, a green window will pop up and the corresponding text prompt will be marked; if the detection is flawed, a red window will pop up and the corresponding text prompt will be marked.

[0079] The ratio of defective copper clad laminates to non-defective copper clad laminates is calculated based on table analysis. If the calculated ratio is greater than a preset ratio, a warning alarm is issued.

[0080] When the prompt window pops up, the analysis results are automatically generated into a table, which is more convenient for recording the qualified status of recent batches of copper clad laminates. Among them, the preset ratio is the ratio determined and entered in advance by the staff according to regulations or factory regulations, which can be 1:50. If the number of unqualified copper clad laminates is too large, a prompt alarm can be popped up on the display. In order to distinguish them, a yellow window can be popped up and marked with corresponding text prompts.

[0081] According to the above configuration, if the host 1 needs to output an alarm signal, the alarm signal may be transmitted to the display module 3, and the display module 3 may output the alarm information in the form of a pop-up window.

[0082] In one embodiment of the present application, the above-mentioned electric control valve 234 is a flow regulating valve, that is, a valve that can change the flow rate. The host 1 is configured to: obtain image data in the coloring action execution stage, perform linear misalignment compensation analysis based on the image data, and control the opening size of the electric control valve 234 of each coloring strip according to the analysis result.

[0083] Among them, linear misalignment compensation analysis includes:

[0084] The copper clad laminate in the image is divided along the width direction to obtain N columns; N is a preset value, which can be 20-30, and is determined by the copper clad laminate width / preset minimum unit width;

[0085] Divide the image in the same column into m blocks along the length direction of the copper clad board; m is a preset value, the same as N;

[0086] Overlap the m blocks of images in any column to obtain a stacked image;

[0087] The proportion of the colored area to the block of the stacked graph is calculated, and when the proportion is less than a preset threshold, for example, 8 / 10, the electronically controlled valve 234 is controlled to adjust the flow.

[0088] According to the above settings, the coloring effect of the copper clad laminate can be guaranteed. However, because the stacking and compensation are carried out in the same column, the demand for coloring is significantly smaller, which can save materials.

[0089] The above-mentioned, the opening size of the electric control valve 234 of each color strip is controlled, for example:

[0090] Columns 1-5 correspond to the first colored bar 231. If the colored area in columns 2, 3, and 4 is less than 8 / 10, the electric control valve 234 corresponding to the first colored bar 231 is controlled to increase the flow rate. The greater the difference from the threshold, the greater the flow rate. The specific data relationship can be preset.

[0091] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A copper-clad laminate copper-clad quality detection system, characterized in that: The invention comprises a host (1) and a detection device (2), wherein the detection device (2) comprises a body (21), a moving component (22), a coloring mechanism (23) for applying colored liquid to a copper-clad laminate, a scraper (24) for wiping off the colored liquid, and a camera (25); The body (21) is provided with a detection slot, and a material port for copper-clad laminate to enter and exit is opened on the side wall of the detection slot. The moving component (22) is arranged at the top of the detection slot, and the copper-clad laminate is located below the moving component (22). The coloring mechanism (23) and the scraper (24) are respectively movably mounted at both ends of the moving component (22) and driven by the moving component (22) in an arrangement direction. The scraper (24) contacts the upper surface of the copper-clad laminate. The camera (25) is used to photograph the copper-clad laminate in a top-down attitude. The moving component (22), the camera (25) and the coloring mechanism (23) are respectively electrically connected to the host (1). The host (1) is configured as follows: If the copper-clad laminate is in the inspection tank and is located at a preset inspection station, the moving component (22) and the coloring mechanism (23) are controlled to perform a coloring action, and the moving component (22) is controlled to drive the scraper to perform a liquid scraping action on the copper-clad laminate; Call the image data after the scraping action on the copper clad board is executed, and perform defect feature recognition and analysis to obtain the analysis results; If the analysis results meet the preset defect alarm conditions, the alarm information will be output.

2. The copper-clad laminate copper-clad quality detection system according to claim 1, characterized in that: The coloring mechanism (23) comprises a frame, a coloring strip (231) for coloring, a thin tube (232) for conveying colored liquid, and an ink cartridge (233) for storing the colored liquid. The thin tube (232) is built into the coloring strip (231) and a plurality of small holes are provided on the wall of the thin tube (232). The wall of the thin tube (232) extends an ink passage section outward and is connected to the ink cartridge (233). The ink cartridge (233) is connected to the top of the detection slot. The coloring strip (231) is fixed to the frame, and the frame is installed on the moving part of the moving component (22).

3. The copper-clad laminate copper-clad quality detection system according to claim 2, characterized in that: The coloring strips (231) and the skeleton are multiple and correspond to each other, and an electric control valve (234) is installed at the connection between each coloring strip (231) and the ink passing section, and the electric control valve (234) is electrically connected to the host (1). The host (1) is configured as follows: Perform image measurement based on the image of the copper clad laminate to obtain the current size of the copper clad laminate; Determine the number of color strips (231) to be used according to the size of the copper clad board; Based on the determined number of coloring strips (231), the electric control valve (234) corresponding to the coloring strip (231) is controlled to open.

4. The copper-clad laminate copper-clad quality detection system according to claim 3 is characterized in that: The moving assembly (22) is fixed in the detection slot, and the moving assembly (22) includes a screw slide (221), the screw slide (221) is provided with three sliders, and the sliders are located below the screw slide (221), each of the sliders is respectively connected to a bracket, and each of the brackets is respectively connected to a coloring strip (231), a camera (25) and a scraping strip (24), and the camera (25) is located between the coloring strip (231) and the scraping strip (24).

5. The copper-clad laminate copper-clad quality detection system according to claim 4 is characterized in that: A cleaning box (211) is arranged in the detection tank, the cleaning box (211) forms a cleaning tank with an upper opening, the cleaning box (211) is located on a side of the bottom plate (261) for completing feeding away from the opening of the detection tank, and the cleaning box (211) is externally connected to a water pump and a waste material box, the water pump and the waste material box are both installed below the detection tank, one end of the cleaning box (211) is connected to the water supply end of the water pump, and the other end is connected to the water inlet end of the waste material box; An electric cylinder (212) is installed on the upper part of the detection slot, and the telescopic end of the electric cylinder (212) is fixed to the side wall of the screw slide (221) away from the slider; two springs are connected to the upper part of the detection slot, one end of the spring is fixed to the machine body (21), and the other end is fixed to the screw slide (221); the springs are respectively located at both ends of the screw slide (221), and the electric cylinder (212) is electrically connected to the main machine (1), and the main machine (1) is configured as follows: if the moving component (22) feedbacks that the scraping action on the copper-clad board is completed, the electric cylinder (212) is controlled to move downward and stop for a time period of t2; wherein t2 is a preset value.

6. The copper-clad laminate copper-clad quality detection system according to claim 5, characterized in that: The host (1) is electrically connected to a feeding mechanism (26), the feeding mechanism (26) comprising a chassis (261) and a sliding unit (262) for moving the chassis (261), the sliding unit (262) being mounted on the bottom of the detection tank, the chassis (261) being embedded with a pressure sensor (263), the detection end of the pressure sensor (263) protruding from the upper surface of the chassis (261), the sliding unit (262) being located at one end of the chassis (261), and the other end being provided with a guiding component for guiding direction and sliding, the host (1) being configured such that: if the value fed back by the pressure sensor (263) is greater than G, the sliding unit (262) is controlled to perform a feeding action; if one defect feature recognition and analysis is completed, the sliding unit (262) is controlled to perform a discharging action, wherein G is a preset value.

7. The copper-clad laminate copper-clad quality detection system according to claim 6, characterized in that: The device also includes an adsorption component for temporarily positioning the copper-clad board, the adsorption component is located below the detection tank, the chassis (261) is provided with a plurality of through holes, the adsorption component includes an air pumping unit (27) and a plurality of air pipes, one end of the plurality of air pipes is connected to the through hole, and the other end is connected to the air pumping end of the air pumping unit (27), the air pumping unit (27) is electrically connected to the host (1), and the host (1) is configured as follows: If the sliding unit (262) completes the feeding action, the air pumping unit (27) is controlled to operate; If the air pumping unit (27) works and lasts for a time period of t1, the moving component (22) and the coloring mechanism (23) are made to respond; wherein t1 is a preset time period for ensuring the adsorption effect of the copper-clad laminate; If the scraping action on the copper-clad laminate is completed, the adsorption component is controlled to stop working, and the sliding unit (262) is controlled to perform the discharging action.

8. The copper-clad laminate copper-clad quality detection system according to claim 7, characterized in that: The bottom of the detection trough is provided with two flow troughs (213), the two flow troughs (213) are located on both sides of the bottom plate (261), the bottom of the detection trough and the opening edge of the flow trough (213) are inclined, and the inclination gradually increases, and flow troughs (213) are excavated at both ends of the bottom plate along the feeding direction, the flow trough (213) opens toward one side of the detection trough opening, the flow trough (213) is provided with an inclination, and the inclination gradually increases from the inside to the outside of the detection trough.

9. The copper-clad laminate copper-clad quality detection system according to claim 1, characterized in that: It also includes a display module (3), the display module (3) is data-connected to the host (1), and the host (1) is configured as follows: If defect feature recognition and analysis are performed, the control display module (3) pops up a result prompt window and generates the analysis results in a table; The ratio of defective copper clad laminates to non-defective copper clad laminates is calculated based on table analysis. If the calculated ratio is greater than a preset ratio, a warning alarm is issued.

10. The copper-clad laminate copper-clad quality detection system according to claim 3, characterized in that: The electrically controlled valve (234) is a flow regulating valve, and the host (1) is configured to: obtain image data during the coloring action execution phase, perform linear misalignment compensation analysis based on the image data, and control the opening size of the electrically controlled valve (234) of each coloring strip according to the analysis result.

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