Automatic production system for composite copper foil

Abstract

The present application relates to an automatic production system for a composite copper foil, applied to the field of composite metal foil processing. The system comprises an electroplating mechanism used for electroplating on the surface of a base film to form a finished product; an unwinding mechanism used for winding the base film is fixed to one end of the electroplating mechanism, and a winding mechanism used for winding the finished product is fixed to the end of the electroplating mechanism distant from the unwinding mechanism; a detection mechanism is arranged between the electroplating mechanism and the winding mechanism; the detection mechanism comprises a cleaning and drying assembly and a detection and oxidation assembly; and the winding mechanism drives the finished product to sequentially pass through the cleaning and drying assembly and the detection and oxidation assembly. The present application has the effect of a low defective rate.

Description

An automated production system for composite copper foil Technical Field

[0001] The present application relates to the field of composite metal foil processing, and in particular to an automated production system for composite copper foil. Background Art

[0002] Composite metal foil is typically produced by electroplating a metal film onto a metal substrate. Composite metal foil typically uses a plastic film as its base material. However, since the base material is non-conductive, a base metal film is deposited on the substrate using magnetron sputtering to form the base film required for composite metal foil production. The base film is then electroplated to deposit metal onto the surface of the base film to form the composite metal foil.

[0003] The electroplating method used in the production of composite metal foil in related technologies is vertical electroplating, a widely used electroplating method. Vertical electroplating is accomplished by inserting the metal or other material to be plated into an electrolyte, connecting the material to a negative electrode, and inserting the positive electrode of the same power source into the electrolyte, causing the ions in the electrolyte to adhere to the surface of the metal or material. However, the plated products are not tested, resulting in a low product yield. Summary of the Invention

[0004] In order to improve the problem of low product yield, the present application provides an automated production system for composite metal foil.

[0005] This application provides an automated production system for composite copper foil, which adopts the following technical solutions:

[0006] A composite copper foil automated production system includes an electroplating mechanism for electroplating on the surface of a base film to form a finished product, an unwinding mechanism for winding the base film is fixed at one end of the electroplating mechanism, and a rewinding mechanism for winding the finished product is fixed at the end of the electroplating mechanism away from the unwinding mechanism, a detection mechanism is provided between the electroplating mechanism and the rewinding mechanism, the detection mechanism includes a cleaning and drying component and a detection and oxidation component, and the rewinding mechanism drives the finished product to pass through the cleaning and drying component and the detection and oxidation component in sequence.

[0007] By adopting the above technical solution, the base film is driven by the winding mechanism and the unwinding mechanism to enter the electroplating mechanism in turn for electroplating. The finished product after electroplating is inspected by the cleaning component and the drying detection component, thereby realizing continuous coating. The finished product after coating is inspected by the drying detection component, thereby further reducing the defective rate.

[0008] Optionally, the cleaning and drying component includes a cleaning part and a drying part, the cleaning part cleans the base film after electroplating, and the drying part is used to dry the surface of the base film.

[0009] By adopting the above technical solution, the cleaning part is used to clean the residual plating liquid on the base film after coating, and the drying part is used to dry the surface of the base film after coating, thereby reducing the impact of water on the coating surface on the subsequent detection process, making the subsequent detection more accurate.

[0010] Optionally, the cleaning unit includes a cleaning nozzle, and the cleaning nozzle sprays deionized water onto the finished product.

[0011] By adopting the above technical solution, the cleaning nozzle is connected to the deionized water storage tank, and the deionized water is sprayed from the cleaning nozzle by means of pump suction, and the sprayed deionized water is used to clean the residual electroplating solution on the surface.

[0012] Optionally, the drying section includes a water absorbing part, a water blowing part and a drying part, and the winding mechanism pulls the finished product through the water absorbing part, the water blowing part and the drying part in sequence;

[0013] The water absorbing member is in contact with the surface of the finished product, and the water absorbing member includes a negative pressure fan and a negative pressure suction cup. The negative pressure suction cup is in contact with the surface of the finished product, and the negative pressure fan and the negative pressure suction cup are connected by a hose. The end surface of the negative pressure suction cup that contacts the finished product is provided with a water absorption hole.

[0014] The water blowing member is placed above the finished product, and the water blowing member includes an air blowing nozzle, which is arranged above the finished product and is connected to a high-pressure air source, and blows air toward the finished product;

[0015] The drying unit includes an infrared generator, and a lens of the infrared generator faces the finished product.

[0016] By adopting the above technical solution, the air blow nozzle is first used to remove the remaining water droplets, and then the infrared generator is used to emit infrared rays for evaporation to keep the surface dry, thereby reducing the impact of water droplets on the subsequent inspection process.

[0017] Optionally, the detection oxidation component includes a detection part, an oxidation part and a cleaning and blowing part, the cleaning and blowing part dries the surface of the finished product, the detection part is in contact with the surface of the finished product, the winding mechanism drives the finished product to pass through the oxidation part, the cleaning and blowing part and the detection part in sequence, the oxidation part grows an oxide layer on the surface of the finished product, and the cleaning and blowing part cleans the surface of the oxide layer.

[0018] By adopting the above technical solution, the detection part detects the scratches on the surface of the finished product, and after the detection, the oxidation part grows an oxide layer on the surface of the finished product to protect the surface of the finished product. After the oxide layer grows, the drying part is cleaned and dried again.

[0019] Optionally, the detection portion includes a detection member and a limiting member, the detection member is arranged above the limiting member, a gap is provided between the limiting member and the detection member for the finished product to pass through, the finished product is placed on the limiting member and is pulled by the winding mechanism to pass through the gap in sequence, and the detection member is in contact with the finished product;

[0020] The detection part includes a light source, a first sensor and a second sensor. The winding mechanism pulls the finished product through under the light source. When the light source shines on the smooth surface of the finished product, the first sensor receives the reflected light of the finished product. When the light source shines on the scratch on the finished product, the second sensor receives the light reflected from the side wall of the scratch.

[0021] By adopting the above technical solution, when detecting surface scratches, the finished product passes under the light source in turn and is illuminated by the light source. If the surface of the finished product is smooth, the angle fluctuation of the reflected light is small, and the reflected light can be received by the first sensor. However, if it is irradiated on a scratch, random reflection will occur, and the second sensor at a different position from the first sensor will receive the reflected light, thereby marking the scratch there.

[0022] Optionally, the oxidation section includes an oxidation nozzle, which is used to evenly spray an antioxidant liquid onto the finished product, and the finished product passes through the oxidation nozzle and the cleaning and blowing dryer in sequence;

[0023] The cleaning and blowing section includes a cleaning nozzle and an air blowing nozzle. The cleaning nozzle sprays deionized water onto the surface of the oxide layer, and the air blowing nozzle blows air onto the finished product to remove liquid on the surface of the finished product.

[0024] By adopting the above technical solution, the oxide layer is grown on the surface only after the inspection is completed, thereby protecting the surface of the finished product. After the oxide layer is grown, the surface of the oxide layer is cleaned.

[0025] Optionally, the electroplating mechanism includes an electroplating chamber, which is divided into a plurality of interconnected electroplating areas, and the winding mechanism drives the base film to pass through the electroplating areas in sequence by pulling the finished product;

[0026] A spray assembly and a recovery assembly are provided in each of the electroplating areas. The spray assembly is provided on the side wall of the electroplating tank to spray the electroplating liquid onto the base film, and the recovery assembly is provided at the bottom of the electroplating tank to recover the electroplating liquid.

[0027] By adopting the above technical solution, the base film is electroplated multiple times in the electroplating area to form a plated film.

[0028] Optionally, the spray assembly includes a spray head, a liquid supply pipe and a guide roller, and the spray head is connected to the liquid storage tank through the liquid supply pipe;

[0029] The spray head includes a spray pipe and a nozzle, one end of the spray pipe is connected to the liquid supply pipe, and the other end of the spray pipe is electrically connected to the positive electrode to form an electroplating positive electrode, and an insulating pad is provided between the spray pipe and the liquid supply pipe;

[0030] The guide roller is rotatably connected to the side wall of the electroplating chamber, the base film is wound on the guide roller, and one end of the guide roller connected to the side wall of the electroplating chamber is electrically connected to the negative electrode to form an electroplating negative electrode.

[0031] By adopting the above technical solution, when the plating liquid is sprayed out from the nozzle, since the nozzle is connected to the positive electrode and the guide roller is connected to the negative electrode, as the electrolyte is continuously sprayed out, a loop is formed between the electrolyte, the base film and the guide roller to form a metal film on the surface of the base film.

[0032] Optionally, the recovery component includes a recovery pipe, which is fixed on the electroplating chamber and communicated with the inside of the electroplating chamber, and the electroplating liquid in the electroplating chamber flows back through the recovery pipe.

[0033] By adopting the above technical solution, the electroplating liquid dripping from the base film converges in the electroplating chamber and is recovered by the recovery pipe for recycling.

[0034] In summary, this application has at least one of the following beneficial effects:

[0035] 1. The base film is driven into the electroplating mechanism in sequence by the winding mechanism and the unwinding mechanism for electroplating. The finished product after electroplating is inspected by the cleaning component and the drying inspection component, thereby realizing continuous coating. The finished product after coating is inspected by the drying inspection component to further reduce the defective rate;

[0036] 2. When detecting surface scratches, the finished product passes under the light source in turn and is illuminated by the light source. If the surface of the finished product is smooth, the angle of the reflected light will fluctuate little, and the reflected light can be received by the first sensor. However, if it hits a scratch, random reflection will occur, and the second sensor at a different position from the first sensor will receive the reflected light, thereby marking the scratch there. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1 is a schematic structural diagram of a first embodiment of an automated production system for composite copper foil according to an embodiment of the present application;

[0038] FIG2 is a schematic cross-sectional view of a first embodiment of an automated production system for composite copper foil according to an embodiment of the present application;

[0039] FIG3 is a schematic cross-sectional view of a spray assembly in an embodiment of the present application;

[0040] FIG4 is a schematic cross-sectional view of the cleaning and drying assembly in an embodiment of the present application;

[0041] FIG5 is a schematic structural diagram of a first embodiment of a detection unit in the present application;

[0042] FIG6 is a schematic cross-sectional view of a second embodiment of the automated production system for composite copper foil according to an embodiment of the present application;

[0043] FIG7 is a schematic cross-sectional view of a second embodiment of the automated production system for composite copper foil according to an embodiment of the present application;

[0044] FIG8 is a schematic structural diagram of a second embodiment of the detection unit in the present application;

[0045] FIG9 is a schematic cross-sectional view of the oxidation section and the cleaning and blowing section in an embodiment of the present application;

[0046] In the figure: 1. Unwinding mechanism; 2. Electroplating mechanism; 21. Electroplating chamber; 22. Spraying assembly; 221. Spraying pipe; 222. Nozzle; 223. Guide roller; 224. Liquid supply pipe; 23. Recovery assembly; 231. Recovery pipe; 3. Rewinding mechanism; 4. Detection mechanism; 41. Cleaning and drying assembly; 411. Cleaning section; 4111. Cleaning nozzle; 412. Drying section; 4121. Air blowing nozzle; 4122. Negative pressure fan; 4123. Negative pressure suction cup; 4124. Infrared generator; 42. Oxidation detection assembly; 421. Detection section; 4211. Light source; 4212. First sensor; 4213. Second sensor; 4214. Limiting roller; 422. Oxidation section; 4221. Oxidation nozzle; 423. Cleaning and blowing section; 4231. Cleaning nozzle; 4232. Air blowing nozzle. DETAILED DESCRIPTION

[0047] The present application is further described in detail below with reference to Figures 1 to 9.

[0048] This embodiment of the present application discloses an automated production system for composite copper foil. Referring to Figures 1 and 2, the system uses a base film as the starting material, and the composite copper foil is formed by electroplating the base film. The base film is based on a plastic film, onto which a metal film is first sputtered using vacuum sputtering. The base film is then placed in an electroplating chamber 21, where it is electroplated to produce the composite copper foil.

[0049] Referring to Figures 1 and 2 , the base film can be wound onto an unwinding mechanism 1. Unwinding mechanism 1 can simply be a reel, which winds the base film onto the reel to form a base film roll. The reel can be powered or unpowered. Unwinding mechanism 1 is fixed to one end of electroplating mechanism 2. Specifically, the reel can be rotatably connected to one end of a frame. The frame can also be rotatably connected to other reversing rollers as needed. These reversing rollers reverse the direction of the reversing rollers, feeding the base film into electroplating mechanism 2 for electroplating.

[0050] 1 and 2 , the electroplating mechanism 2 includes an electroplating tank 21, which can be fixed on a frame with the frame as support. The unwinding roller is located at one end of the electroplating tank 21. The electroplating tank 21 is divided into a plurality of electroplating areas along the length direction of the electroplating tank 21. In conjunction with FIG3 , a spray assembly 22 and a recovery assembly 23 are provided in each electroplating area. Taking the spray assembly 22 and the recovery assembly 23 in one electroplating area as an example, the spray assembly 22 includes at least a nozzle, a liquid supply pipe 224 and a guide roller 223. The liquid supply pipe 224 needs to be connected to a storage tank of the electroplating liquid. A water pump is placed in the electroplating liquid storage tank. The water pump pumps the electroplating liquid in the electroplating liquid storage tank into the nozzle through the liquid supply pipe 224, and the liquid is sprayed out by the nozzle and sprayed on the base film, thereby forming a copper foil layer on the surface of the base film through electroplating.

[0051] Referring to Figures 2 and 3 , the base film needs to be connected to the negative electrode during the electroplating process. Therefore, before entering the nozzle for spraying, the base film needs to be connected to the negative electrode. The guide rollers 223 can be a pair of copper rollers that are rotatably connected to the side walls of the electroplating chamber 21. The gap between the pair of copper rollers is just large enough for the base film to pass through and press against either of the copper rollers. One end of the copper roller connected to the side wall of the electroplating chamber 21 is connected to the negative electrode. At this point, since the base film is in contact with the copper rollers, the base film is actually connected to the negative electrode, forming the negative electrode for electroplating. The nozzle includes a spray pipe 221 and a nozzle 222. The nozzle 222 is installed on the spray pipe 221. The spray pipe 221 is mounted on the inner wall of the electroplating tank 21 and the nozzle 222 is facing the base film. Both ends of the spray pipe 221 are installed on the side wall of the electroplating tank 21. One end of the spray pipe 221 is connected to the liquid supply pipe 224, while the other end is closed and passes through the side wall of the electroplating tank 21 to be electrically connected to the positive electrode to form an electroplating positive electrode. The spray pipe 221 and the nozzle 222 are also made of titanium metal with good conductivity. When electroplating is performed, the nozzle 222 sprays the plating solution toward the base film, and a loop is formed between the positive electrode, the spray pipe 221, the nozzle 222, the plating solution, the base film and the negative electrode, so that electroplating can be performed during the spraying process. Of course, in order to achieve double-sided electroplating, multiple groups of spray assemblies 22 can also be set in each electroplating area for electroplating.

[0052] Referring to Figures 1 and 2, the electroplating solution sprayed onto the base film eventually drips into the electroplating chamber 21. A recovery assembly 23 is fixed to the bottom of the electroplating chamber 21 for recovering the electroplating solution. One or more recovery assemblies 23 can be fixed to each electroplating area. Specifically, the recovery assembly 23 includes a recovery pipe 231, which is fixed to the electroplating chamber 21 and communicates with the interior of the electroplating chamber 21. The electroplating solution in the electroplating chamber 21 is recirculated through the recovery pipe 231. One end of the recovery pipe 231 extending from the interior of the electroplating chamber 21 is connected to a recovery pump, which pumps the electroplating solution that drips into the electroplating chamber 21. Furthermore, the bottom of the electroplating chamber 21 can be provided with a diversion groove along the width of the electroplating chamber 21 to collect and divert the electroplating solution that drips into the bottom of the electroplating chamber 21. The recovery pipe 231 can be connected to a liquid storage tank, so that the recovery pump can directly recover the electroplating solution that drips into the electroplating chamber 21 back into the liquid storage tank. Of course, a special recovery tank can also be fixed on the rack, and the recovery pipe 231 is connected to the recovery tank to pump the electroplating liquid at the bottom of the electroplating tank into the recovery tank for centralized treatment.

[0053] Referring to Figures 2 and 4, after the electroplating is completed, the copper foil formed on the surface of the base film is called the finished product. An oxide layer needs to be grown on the finished product to protect the copper foil. After the oxide layer is grown, the finished product is wound on the winding mechanism 3. The winding mechanism 3 can be fixed to the frame and at the end of the electroplating chamber 21 away from the unwinding mechanism 1. The winding mechanism 3 can be just a winding roller. The winding roller can be powered by an electric motor. The winding roller is connected to the frame and the motor is also fixed to the frame to drive the winding roller to rotate. When the winding roller rotates, it pulls the base film away from the unwinding mechanism 1, so that it passes through the electroplating area in sequence for electroplating. This can achieve continuous electroplating and improve electroplating efficiency.

[0054] Referring to Figures 2 and 4 in conjunction with Figure 5 , the finished product also needs to be inspected by a testing mechanism 4, which grows an oxide layer on the surface of the coating to protect it. Specifically, the testing mechanism 4 includes a cleaning and drying component 41 and a testing and oxidation component 42. The finished product is first cleaned and dried by the cleaning and drying component 41 to remove residual plating solution and other residues on the coating surface and keep the coating surface dry. This minimizes the impact of the water film on the coating surface on the test results during subsequent testing, ensuring accurate test results.

[0055] 2 and 4 and in conjunction with FIG5 , the cleaning and drying assembly 41 includes a cleaning portion 411 and a drying portion 412, and the cleaning portion 411 sprays deionized water onto the surface of the coating. Specifically, the cleaning portion 411 includes a cleaning nozzle 4111, and there can be multiple cleaning nozzles 4111. Multiple cleaning nozzles 4111 can be connected by a cleaning water pipe, and the cleaning water pipe can be set up on the rack, and it is only necessary to place the cleaning nozzle 4111 above the finished product. The cleaning water pipe can also be fixed on the side wall of the electroplating warehouse 21. No matter how the cleaning water pipe is arranged, the cleaning water pipe extends along the width direction of the electroplating warehouse 21 so that deionized water can be sprayed onto the finished product without dead angles to remove the residual electroplating solution on the surface of the finished product. The deionized water mixed with the electroplating solution drips into the electroplating warehouse 21 and is recycled and processed by the recovery pipe 231.

[0056] Referring to Figures 2 and 4 in conjunction with Figure 5, after the plating solution on the surface of the finished product is removed, deionized water remains on the surface of the finished product, so it needs to be dried through the drying section 412 to reduce the impact of deionized water on subsequent test results. The drying section 412 includes a water absorbing part, a water blowing part, and a drying part. The water absorbing part needs to be attached to the surface of the finished product, and the finished product first absorbs water through the water absorbing part. The water absorbing part includes a negative pressure fan 4122 and a negative pressure suction cup 4123. The negative pressure suction cup 4123 is attached to the surface of the finished product. The negative pressure fan 4122 is fixed to the frame and connected to the negative pressure suction cup 4123 through a hose. The negative pressure suction cup 4123 needs to have a water absorption hole. When the negative pressure fan 4122 is started, a negative pressure is formed in the area where the negative pressure suction cup 4123 is located to absorb the residual water on the surface of the finished product.

[0057] Referring to Figures 2 and 4 in conjunction with Figure 5, any moisture remaining on the finished product after being absorbed by the suction member is further dispersed by the water blowing member. The water blowing member is placed above the finished product and includes a blow nozzle 4121. The blow nozzle 4121 is positioned above the finished product and is connected to a high-pressure air source. The blow nozzle 4121 blows air toward the finished product. The blow nozzle 4121 can be fixed to a blow pipe and mounted on the electroplating tank 21 or on a rack along the width of the electroplating tank 21 using the blow pipe. The blow nozzle 4121 is fixed to the blow pipe and connected to the blow pipe. The high-pressure air source, through its connection to the blow pipe, can supply air to the blow nozzle 4121.

[0058] Referring to Figures 2 and 4 in conjunction with Figure 5, the remaining moisture on the surface of the finished product after being blown by the air nozzle 4121 may form a water film on the surface of the finished product. This water film can be dried by the drying unit. The drying unit includes an infrared generator 4124, the lens of which is facing the finished product. The infrared rays emitted by the infrared generator 4124 act on the surface of the finished product, heating and evaporating the water film, thereby removing the remaining moisture from the finished product. The infrared generator 4124 is still fixed to the frame and only needs to emit infrared rays in the direction of the finished product.

[0059] Referring to Figures 2 and 4 in conjunction with Figure 5 , the finished product, after its surface moisture has been removed, enters the inspection and oxidation assembly 42 for inspection. After inspection, a layer of oxide film is applied to the surface before it is reeled up by the reeling mechanism 3 . The inspection and oxidation assembly 42 comprises an inspection section 421 , an oxidation section 422 , and a cleaning and blowing section 423 . The inspection section 421 detects scratches on the coating surface, while the oxidation section 422 generates an oxide layer on the coating surface to protect it. The cleaning and blowing section 423 removes any residual chemicals from the oxide layer, keeping the surface dry.

[0060] 2 and 4 in combination with FIG5 , the detection portion 421 includes a detection member and a limiting member, wherein the detection member includes a light source 4211 and a sensor group, and the sensor group is further divided into at least a first sensor 4212 and a second sensor 4213. The first sensor 4212 and the second sensor 4213 are fixed on the rack or directly fixed on the light source 4211. Of course, it is preferred that the position on the fixed rack is still away from the light source 4211 to reduce the interference of the light source 4211 on the sensor group.

[0061] The limiting member is rotatably connected to the frame and has a gap between it and the light source 4211 for the finished product to pass through. The finished products are driven by the winding mechanism 3 to pass through the gap in sequence, that is, they pass through the light source 4211 in sequence and are illuminated by the light source 4211. When the finished product passes through the gap, the side that needs to be inspected faces the light source 4211 and is illuminated by the light source 4211. The specific limiting member includes a limiting roller 4214, which is rotatably connected to the frame and placed below the light source 4211. The finished product is wound around the limiting member so that the finished product passing through the gap is at a fixed angle to the light source 4211.

[0062] 2 and 4 in conjunction with FIG5 , if the first sensor 4212 and the second sensor 4213 are both fixed to the rack, the light source 4211 includes a housing, which is arranged along the width direction of the electroplating chamber 21. A fill light is fixed to the housing, and reflectors are fixed to the outer walls on both sides of the housing, which are called first reflectors and second reflectors. There is a gap between the reflectors and the housing for the light path to pass through. If the coating is smooth when passing through the gap, the coating will reflect the light of the fill light, which is reflected by the first reflector and finally received by the first sensor 4212. That is, when the first sensor 4212 receives the light signal, it can be obtained that the coating passing there is smooth. If a scratch appears on the coating, the reflective surface at the scratch will be rougher than the normal coating, and diffuse reflection will occur there when passing through the fill light. At this time, the second reflector will reflect part of the light, and the light will be received by the second sensor 4213. That is, as long as the second sensor 4213 receives a change in the light signal, it can be proved that there is a scratch defect on the coating that has passed through the fill light. When detecting scratches, it no longer relies on human eye observation or photo comparison, but directly uses the light reflected from the coating surface to detect scratches on the coating surface.

[0063] 7 and 8 , the first sensor 4212 and the second sensor 4213 can also be fixed to the light source 4211. Specifically, the light source 4211 includes a housing, which defines a chamber for mounting a fill light. The fill light is mounted within the chamber and does not need to protrude from the housing, i.e., the fill light is entirely retracted within the housing. When the finished product is wound around the limiting roller 4214, the edge of the housing can abut against the finished product. This means that the finished product undergoing inspection is sealed by the housing, making it difficult for external stray light to interfere with the area enclosed by the housing, thereby increasing detection accuracy.

[0064] Referring to Figures 7 and 8, a first sensor 4212 and a second sensor 4213 are fixed to the inner walls of the housing on opposite sides. Specifically, the first sensor 4212 is fixed to the inner wall of the housing, and the second sensor 4213 is fixed to the other side wall of the housing. Due to the action of the limiting roller 4214, the angle at which the finished product enters the gap is fixed. Therefore, if the surface of the finished product is smooth, the angle at which the fill light is reflected is also constant. In other words, when the surface of the finished product is smooth, the first sensor 4212 will always receive the light signal directly reflected from the finished product. If the surface of the finished product is scratched, the roughness of the scratch will differ from that of a normal finished product. In this case, when the light source 4211 shines on the scratch, the reflection from the scratch will not only be reflected by the first sensor 4212, but will also be stray reflection. Even if the second sensor 4213 is opposite the first sensor 4212, it can still receive the reflected light signal, resulting in a signal change. In other words, a signal change from the second sensor 4213 confirms the presence of a scratch on the surface of the finished product being inspected.

[0065] 5 and 7 , when using the first sensor 4212 and the second sensor 4213 for detection, they need to be used in conjunction with a controller. Regardless of the installation method used for the first sensor 4212 and the second sensor 4213, the controller's function is to compare the changes in the optical signals before and after the first sensor 4212 and the second sensor 4213. Specifically, the first sensor 4212 and the second sensor need to be separately connected to the controller. The controller includes at least a central processing unit for processing various input signals, input and output ports, and a storage unit for storing data. The central processing unit is signal-connected to the input and output ports, and the storage unit is directly signal-connected to the central processing unit. The storage unit can also be signal-connected to the input and output ports to indirectly connect to the central processing unit. The central processing unit can read various data stored in the storage unit and write data to the storage unit. The first sensor 4212 and the second sensor 4213 are signal-connected to the input and output ports, that is, the first sensor 4212 and the second sensor 4213 can transmit the changes in the optical signals through the input and output ports to the central processing unit for processing, so as to be able to identify the signal changes of the first sensor 4212 and the second sensor 4213. This embodiment does not require a reflector to reflect the optical signal, and the optical signal loss is small.

[0066] When scratches are detected, they need to be processed to identify the location of the scratches. Since the entire electroplating process cannot be interrupted, the preferred method is to perform a marking process so that the scratched part can be directly cut out during subsequent cutting. Specifically, a marking machine is fixed on the frame. The marking machine is fixed on the side of the detection part 421 between the detection part 421 and the oxidation part 422, close to the detection part 421. After the coating inspection is completed, it will be marked by the marking machine. The marking machine can be a laser marking machine to burn holes on the surface of the finished product for easy identification.

[0067] Referring to Figures 7 and 9, after marking, an oxide film can be grown on the surface of the scratched area of ​​the finished product to protect the coating. Specifically, the oxide film can be generated on the surface of the finished product by the oxidation unit 422. The oxidation unit 422 includes an oxidation nozzle 4221, which is connected to a storage tank for storing antioxidant liquid via a hose. Taking the coating as an example, the antioxidant liquid can be HT copper antioxidant, which is sprayed through the oxidation nozzle 4221 to form a colorless and transparent film on the surface of the coating to protect the coating and prevent the coating from being oxidized by long-term contact with air. The storage tank storing the antioxidant liquid has a booster pump that pumps the antioxidant into the oxidation nozzle 4221 and sprays it under pressure, so that the antioxidant is more evenly distributed on the surface of the coating. Excess antioxidant will drip into the electrolytic cell, mix with the electrolyte in the electrolytic cell, and be recovered by the recovery pipe 231 for centralized treatment.

[0068] HT copper antioxidants are typically in the form of aqueous solutions. Therefore, after the protective layer is formed, excess antioxidants must be removed. This can be done by spraying with water. Specifically, a cleaning and blowing section 423 is fixed to the side of the antioxidant nozzle 4221 facing the reeling mechanism 3. This section includes a cleaning nozzle 4231 and an air blowing nozzle 4232. The cleaning nozzle 4231 sprays deionized water onto the surface of the oxide layer, while the air blowing nozzle 4232 blows air onto the finished product, removing liquid from the surface and drying it, allowing the reeling mechanism 3 to complete the electroplating process.

[0069] After electroplating, the base film of this application needs to undergo scratch detection. Utilizing the principle of light reflection, the winding mechanism 3 drives the coating layer to pass under the light source 4211 one by one during winding. In conjunction with the sensor, if the surface of the finished product is smooth, the angle of the reflected light will fluctuate little, and the reflected light can be received by the first sensor 4212. However, if it hits a scratch, random reflection will occur, and the second sensor 4213, which is located at a different position from the first sensor 4212, will receive the reflected light, thereby marking the scratch. The finished product after coating is inspected by the drying detection component to further reduce the defective rate.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automated production system for composite copper foil, comprising an electroplating mechanism (2) for electroplating a base film surface to form a finished product, one end of the electroplating mechanism (2) being fixed to an unwinding mechanism (1) for winding the base film, and an end of the electroplating mechanism (2) away from the unwinding mechanism (1) being fixed to a rewinding mechanism (3) for winding the finished product, characterized in that: A detection mechanism (4) is provided between the electroplating mechanism (2) and the winding mechanism (3), wherein the detection mechanism (4) comprises a cleaning and drying component (41) and a detection and oxidation component (42), and the winding mechanism (3) drives the finished product to pass through the cleaning and drying component (41) and the detection and oxidation component (42) in sequence.

2. The automated production system for composite copper foil according to claim 1, characterized in that: The cleaning and drying component (41) comprises a cleaning part (411) and a drying part (412), wherein the cleaning part (411) cleans the base film after electroplating, and the drying part (412) is used to dry the surface of the base film.

3. The automated production system for composite copper foil according to claim 2, characterized in that: The cleaning section (411) includes a cleaning nozzle (4111), and the cleaning nozzle (4111) sprays deionized water onto the finished product.

4. The automated production system for composite copper foil according to claim 3, characterized in that: The drying section (412) comprises a water absorbing part, a water blowing part and a drying part, and the winding mechanism (3) pulls the finished product through the water absorbing part, the water blowing part and the drying part in sequence; The water absorbing member is in contact with the surface of the finished product. The water absorbing member comprises a negative pressure fan (4122) and a negative pressure suction cup (4123). The negative pressure suction cup (4123) is in contact with the surface of the finished product. The negative pressure fan (4122) and the negative pressure suction cup (4123) are connected via a hose. The end surface of the negative pressure suction cup (4123) in contact with the finished product is provided with a water absorbing hole. The water blowing member is placed above the finished product, and the water blowing member includes an air blowing nozzle (4121). The air blowing nozzle (4121) is arranged above the finished product, and the air blowing nozzle (4121) is connected to a high-pressure air source, and the air blowing nozzle (4121) blows air toward the finished product; The drying unit includes an infrared generator (4124), and the lens of the infrared generator (4124) is directed toward the finished product.

5. The automated production system for composite copper foil according to claim 1, characterized in that: The detection oxidation assembly (42) comprises a detection portion (421), an oxidation portion (422) and a cleaning and blowing portion (423); the cleaning and blowing portion (423) dries the surface of the finished product; the detection portion (421) is in contact with the surface of the finished product; the winding mechanism (3) drives the finished product to pass through the oxidation portion (422), the cleaning and blowing portion (423) and the detection portion (421) in sequence; the oxidation portion (422) grows an oxide layer on the surface of the finished product; and the cleaning and blowing portion (423) cleans the surface of the oxide layer.

6. The automated production system for composite copper foil according to claim 5, characterized in that: The detection part (421) includes a detection member and a limiting member, wherein the detection member is arranged above the limiting member, and a gap is provided between the limiting member and the detection member for the finished product to pass through. The finished product is placed on the limiting member and is pulled through the gap in sequence by the winding mechanism (3), and the detection member abuts against the finished product. The detection component comprises a light source (4211), a first sensor (4212) and a second sensor (4213); the winding mechanism (3) pulls the finished product through the bottom of the light source (4211); when the light source (4211) illuminates the smooth surface of the finished product, the first sensor (4212) receives the reflected light of the finished product; when the light source (4211) illuminates a scratch on the finished product, the second sensor (4213) receives the light reflected from the side wall of the scratch.

7. The automated production system for composite copper foil according to claim 6, characterized in that: The oxidation section (422) includes an oxidation nozzle (4221), and the oxidation nozzle (4221) is used to evenly spray the antioxidant liquid onto the finished product, and the finished product passes through the oxidation nozzle (4221) and the cleaning and blowing section (423) in sequence; The cleaning and blowing portion (423) comprises a cleaning nozzle (4231) and an air blowing nozzle (4232). The cleaning nozzle (4231) sprays deionized water onto the surface of the oxide layer, and the air blowing nozzle (4232) blows air onto the finished product to remove liquid from the surface of the finished product.

8. The automated production system for composite copper foil according to claim 1, characterized in that: The electroplating mechanism (2) includes an electroplating chamber (21), the electroplating chamber (21) is divided into a plurality of interconnected electroplating areas, and the winding mechanism (3) drives the base film to pass through the electroplating areas in sequence by pulling the finished product; A spray assembly (22) and a recovery assembly (23) are provided in each of the electroplating areas. The spray assembly (22) is provided on the side wall of the electroplating chamber (21) to spray the electroplating solution onto the base film. The recovery assembly (23) is provided at the bottom of the electroplating chamber (21) to recover the electroplating solution.

9. The automated production system for composite copper foil according to claim 8, characterized in that: The spray assembly (22) comprises a spray head, a liquid supply pipe (224) and a guide roller (223), and the spray head is connected to the liquid storage tank through the liquid supply pipe (224); The spray head comprises a spray pipe (221) and a nozzle (222); one end of the spray pipe (221) is connected to a liquid supply pipe (224); the other end of the spray pipe (221) is electrically connected to a positive electrode to form an electroplating positive electrode; an insulating pad is provided between the spray pipe (221) and the liquid supply pipe (224); The guide roller (223) is rotatably connected to the side wall of the electroplating chamber (21), the base film is wound around the guide roller (223), and one end of the guide roller (223) connected to the side wall of the electroplating chamber (21) is electrically connected to the negative electrode to form an electroplating negative electrode.

10. The automated production system for composite copper foil according to claim 9, characterized in that: The recovery component (23) comprises a recovery pipe (231), which is fixed on the electroplating chamber (21) and communicates with the inside of the electroplating chamber (21), and the electroplating liquid in the electroplating chamber (21) flows back through the recovery pipe (231).

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