Aluminum substrate foil surface flaw detection equipment and detection method thereof

Abstract

The invention relates to the field of aluminum base material foil detection, and particularly discloses aluminum base material foil surface flaw detection equipment and a detection method thereof.The aluminum base material foil surface flaw detection equipment comprises a rack, a computer, a conveying device, a camera device, a feedback device and a stabilizing device.The conveying device comprises a feeding box, conveying rollers and a discharging box, and the camera device comprises an electric sliding rail, a CCD camera and an illumination light source; the rotating seat is connected with the CCD camera and the electric sliding rail, and the CCD camera can slide along the electric sliding rail; the stabilizing device comprises a backup CCD industrial camera and a backup illumination light source, the backup CCD industrial camera and the backup illumination light source are installed on the electric sliding rail and can move in the length direction of the electric sliding rail, and the backup CCD industrial camera and the backup illumination light source can be controlled by a computer to be close to or away from the CCD camera and the illumination light source. By using the detection equipment and method provided by the invention, the stability of the detection equipment is higher, and the detection requirements of diversified aluminum base material foil products can be met.

Description

Technical Field

[0001] The present application relates to the field of aluminum substrate foil surface detection, and in particular to an aluminum substrate foil surface defect detection device and a detection method thereof. Background Art

[0002] Aluminum foil is a metal material with the characteristics of lightness, good ductility, and easy processing. It is widely used in many industries. For example, in the fields of power batteries, food and medical, 3C electronics, and aerospace, it is widely used in all aspects of our lives. During the production and processing of aluminum foil, due to the instability of the process and external reasons, many flaws or defects will occur on the surface of the aluminum foil, such as pits, oil spots, stains, peeling, scratches, wrinkles, foreign matter, pinholes, burrs, black spots, stripes, color difference, abrasions and other defect types. In the actual production activities, if the production and processing speed of some aluminum foil materials is not fast enough, most of them are found by manual online visual inspection or single-sided inspection of the equipment to find the defects on the surface of the aluminum foil. However, since the current inspection equipment generally adopts a single-camera inspection mode, if there is a problem with the camera during the inspection process, it needs to be shut down for maintenance immediately. During the maintenance process, it is also necessary to disassemble the aluminum foil material that has not been inspected, which is time-consuming and laborious.

[0003] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: manual visual inspection is costly and inefficient, and it is difficult to adapt to the inspection needs of diversified products; when using inspection equipment for inspection, if a problem occurs with the camera during the inspection process, it needs to be shut down immediately for repair, which is time-consuming and labor-intensive. Summary of the invention

[0004] In order to improve the above-mentioned problems of high cost and low efficiency of manual visual inspection, which is difficult to adapt to the inspection needs of diversified products; when using inspection equipment for inspection, if a problem occurs in the camera during the inspection process, it needs to be immediately shut down for repair, which is time-consuming and labor-intensive, the present application provides an aluminum substrate foil surface defect inspection device and a detection method thereof.

[0005] The present application provides an aluminum substrate foil surface defect detection device and a detection method thereof using the following technical solutions: An aluminum substrate foil surface defect detection device comprises a frame, a transport device arranged on the frame, a computer arranged on the frame, a camera arranged on the frame, a feedback device arranged on the frame, and a stabilizing device; The transport device comprises a feed box, a transport roller arranged along the outlet direction of the feed box, and a discharge box arranged on the side of the transport roller away from the feed box, a detection channel is formed between the feed box and the discharge box, and the transport roller can rotate in a circle around its own axis; The camera device includes an electric slide rail, a CCD camera and an illumination light source which are arranged on the electric slide rail and are controlled by the computer, and a rotating seat connecting the CCD camera and the electric slide rail. The CCD camera can move along the length direction of the electric slide rail and rotate around the axis of the rotating seat. The camera device collects material image information and transmits it to the computer. The feedback device is controlled by a computer and performs feedback processing on information from the computer; The stabilizing device includes a backup CCD industrial camera and a backup lighting source. The backup CCD industrial camera and the backup lighting source are installed on an electric slide rail and can move along the length direction of the electric slide rail. The backup CCD industrial camera and the backup lighting source are controlled by a computer to approach or move away from the CCD camera and the lighting source.

[0006] By adopting the above technical solution, the aluminum substrate foil to be inspected passes through the step-by-step inspection channel under the action of the transport roller, and the camera device takes photos and samples the aluminum substrate foil passing through and transmits them to the computer. The computer compares the sampled photos from the camera device with the defect photos. If no pattern substantially similar to the defect photo is found, no processing is performed. If a pattern substantially similar to the defect pattern is found on the sampled photo, the feedback device is controlled to feedback defect information. During the inspection process, when the CCD camera fails and cannot be inspected, the computer starts or manually starts the backup CCD industrial camera and the backup lighting source, so that they move to the position of the faulty CCD camera to replace it for taking photos and sampling. When the CCD camera fails, the entire equipment does not stop and the backup CCD camera immediately starts and starts working. The sampling angle is gradually adjusted when moving toward the faulty CCD camera. In this way, the aluminum substrate foil to be inspected passing through the transport channel will not be missed due to the failure of the CCD camera, and the situation where the entire machine stops working due to the failure of the CCD camera can be avoided, thereby improving the stability of equipment use.

[0007] Optionally, a plurality of the transport rollers are arranged at intervals, and the plurality of transport rollers are arranged at intervals along the length direction of the transport channel.

[0008] By adopting the above technical solution, the time for the aluminum substrate foil to be detected to pass through the detection channel can be extended, which can appropriately reduce the configuration requirements for the computer on the one hand, and on the other hand, can appropriately give the feedback device time for feedback processing.

[0009] Optionally, two groups of CCD cameras are provided, the two groups of CCD cameras are respectively close to the feed box and the discharge box, and the lenses of the two groups of CCD cameras are arranged opposite to each other.

[0010] By adopting the above technical solution, both sides of the aluminum substrate foil to be inspected can be inspected at one time, thereby avoiding the omission of some defects such as oil spots, stains, stripes, color differences, foreign matter, black spots, etc. due to only inspecting one side, further improving the inspection efficiency and reducing the inspection cost.

[0011] Optionally, the rotating seat includes a first rotating seat and a second rotating seat, and the first rotating seat is arranged perpendicular to the axis of the second rotating seat.

[0012] By adopting the above technical solution, the CCD camera can be rotated horizontally or vertically, and the sampling angle can be adjusted at multiple angles to adapt to more types of substrates to be tested.

[0013] Optionally, each of the CCD cameras is provided with an illumination light source, and each of the backup CCD cameras is provided with a backup illumination light source.

[0014] By adopting the above technical solution, the lighting source can better illuminate the surface of the aluminum substrate foil to be inspected to avoid shadows that may cause inaccurate detection; by arranging a light source on the CCD camera and the backup CCD camera, the lighting can be performed according to the sampling direction of the lens when the CCD camera rotates, making the sampling more accurate.

[0015] Optionally, the feedback device includes a marking machine and an alarm, the marking machine marks and codes the position information determined as a defect from the computer, and the alarm issues an alarm after receiving the defect information from the computer.

[0016] By adopting the above technical solution, when the feedback device receives an instruction from the computer, the alarm emits light and sound alarms to remind the staff that there is a defect in the aluminum substrate foil; at the same time, the computer drives the marking machine to mark the defect position, which is convenient for the staff to locate and repair or scrap it.

[0017] Optionally, the feedback device further comprises a printing device, and the printing device is controlled by the computer to print the defect pattern from the CCD camera.

[0018] By adopting the above technical solution, when a defect is encountered, the computer can drive the printer to directly print out the defect pattern so that the staff can judge the nature and type of the defect and choose an appropriate treatment method to deal with the defect.

[0019] Optionally, the feedback device further comprises a wireless communication module, and the wireless communication module is controlled by the computer to transmit the defect pattern to other display devices via wireless communication.

[0020] By adopting the above technical solution, staff can control multiple inspection devices at the same time. When encountering defects, the computer drives the wireless communication module to directly transmit the defect pattern and location information such as the device to which it belongs and the defect location to the staff's handheld mobile device or fixed display screen, which further facilitates the staff to judge the nature and type of the defect, and thus choose the appropriate treatment method to deal with the defect.

[0021] A method for detecting surface defects of an aluminum substrate foil comprises the following steps: S1. The staff inputs the width and length data of the aluminum substrate foil to be tested through the computer. The computer generates a driving instruction according to the input data to drive the CCD camera and the illumination light source to move to the corresponding photo sampling position; S2. The staff inputs the defect pattern of the aluminum substrate foil into the computer for comparison between the subsequent sampling pictures and the defect pattern; S3, placing the aluminum substrate foil to be tested into the feed box and having one end of the foil pass through the transport roller in sequence through the entire testing channel and then fixed into the discharge box; S4, turning on the switch of the transport device, the aluminum substrate foil to be inspected moves from the feed box to the discharge box under the transport of the transport roller, and the CCD camera takes photos and samples the passing aluminum substrate foil with the assistance of the lighting source, and after taking photos and sampling, the CCD camera transmits the sampled photos to the computer; S5. The computer compares the sampled photo from the CCD camera with the defect pattern; If no pattern substantially identical to the defective pattern is found, no instruction is issued, and the CCD camera continues to take pictures and samples and transmits the sampled pictures to the computer; If a sampling picture identical to the defect pattern is found, the computer first sends instruction information to the feedback device and drives it to give a light alarm and an alarm, and then sends a command to the CCD camera to continue taking pictures and sampling; S6. The feedback device marks the defect location and issues an alarm according to computer instructions.

[0022] By adopting the above technical solution, it is possible to directly perform defect detection on the aluminum substrate foil through the detection equipment, and it is also possible to adapt to the detection needs of diversified aluminum substrate foil products, thereby improving the detection efficiency and reducing the detection cost.

[0023] Optionally, the step S6 further includes S61, the wireless communication module or printer in the feedback device outputs the defect position information and the defect pattern to a designated device or prints.

[0024] By adopting the above technical solution, when defects are detected in the aluminum substrate foil, the staff can directly see the defect pattern through the printed defect pattern or on the designated display device, thereby determining the treatment method or treatment time for the defect, thereby further improving work efficiency and labor efficiency ratio.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. It can improve the detection efficiency and accuracy of aluminum substrate foil and reduce the detection cost; 2. It can adapt to various aluminum substrate foil detection and the special conditions and detailed detection requirements of different aluminum substrate foils; 3. There is a backup CCD industrial camera, which improves the detection stability of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the electrical control cabinet of the present application; Figure 3 It is a schematic diagram of the structure of the feedback device of the present application; Figure 4 yes Figure 1 A magnified schematic diagram of part A; Figure 5 It is a schematic diagram of the structure of the rotating seat of the fourth embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the rotating seat of the fifth embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the rotating seat of the fifth embodiment of the present application; Figure 8 It is a schematic diagram of the overall structure of the sixth embodiment of the present application; Fig. 9 It is a schematic diagram of the structure of the rotating seat of the sixth embodiment of the present application; Fig.10 It is a schematic diagram of the overall structure of Example 7 of the present application.

[0027] 1. rack; 2. electrical control cabinet; 3. transport device; 31. discharge box; 32. feed box; 33. transport roller; 34. detection channel; 4. computer; 5. camera device; 51. electric slide; 511. horizontal electric slide; 512. longitudinal electric slide; 52. CCD camera; 53. lighting source; 54. rotating seat; 541. first rotating seat; 542. second rotating seat; 543. angle seat; 544. vertical electric slide; 6. feedback device; 61. alarm; 611. speaker; 612. alarm light; 62. marking machine; 63. printing device; 64. wireless communication module; 7. stabilizing device; 71. backup CCD industrial camera; 72. backup lighting source; 8. mobile motor; 81. gear; 811. rack; 83. bearing; 84. angle motor; 85. fixed block; 86. rotating plate; 87. second rotation. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 —10 Provide further details of this application. Embodiment 1

[0029] The present application embodiment discloses an aluminum substrate foil surface defect detection device. Figure 1-2 The surface defect detection equipment of aluminum substrate foil includes a frame 1, an electrical control cabinet 2, a transport device 3 detachably connected to the frame 1, a computer 4, a camera 5 and a feedback device 6. The computer 4 is an industrial control computer, and the transport device 3 includes a discharge box 31 connected to one side of the frame 1 by bolts or rivets, a feed box 32 fixedly connected to the side of the frame 1 away from the discharge box 31, and a transport roller 33 arranged along the outlet direction of the discharge box 31. A detection channel 34 is formed between the outlet of the discharge box 31 and the inlet of the feed box 32, and the axis of the transport roller 33 is vertically arranged on the plane where the detection channel 34 is located to assist the aluminum substrate foil to be detected to move from the discharge box 31 to the feed box 32. A camera 5 is installed above the detection channel 34, and the camera 5 and the detection channel 34 are in a closed space (not shown in the figure) and are installed on the frame 1.

[0030] Reference Figure 1 A plurality of transport rollers 33 are arranged in a Z shape (viewed from above) along the length direction of the detection channel 34. This solution can extend the time for the aluminum substrate foil to be detected to pass through the detection channel 34. On the one hand, this can appropriately reduce the configuration requirements for the computer 4, and on the other hand, it can appropriately give the feedback device 6 time to perform feedback processing.

[0031] Reference Figure 1The camera device 5 includes an electric slide rail 51, on which a CCD camera 52 and an illumination light source 53 are installed. The CCD camera 52 is preferably a high-speed industrial CCD camera, with a high-speed line scan at 10μm pixel 4K resolution and 18K line frequency, and an industrial lens with an F port of 50㎜ is required; the illumination light source 53 is preferably a high-brightness LED cold light source, with an effective coverage length of 1700㎜. A protective cover (not shown in the figure) is provided on the outer cover of the CCD camera 52 and the illumination light source 53 to protect the illumination light source 53 and the CCD camera 52 from damage.

[0032] Reference Figure 1 , two groups of CCD cameras 52 and illumination light sources 53 are arranged symmetrically along the axis of the length direction of the detection channel 34, which are respectively connected to the horizontal electric slide rail 511 and the longitudinal electric slide rail 512 through the rotating seat 54 and controlled by the computer 4; one group of CCD cameras 52 and illumination light sources 53 is arranged on the side close to the discharge box 31, and the other group of CCD cameras 52 and illumination light sources 53 is arranged on the side close to the feed box 32. With the above scheme, the front and back sides of the aluminum substrate foil to be detected can be detected at one time, which improves the detection efficiency and reduces the detection cost.

[0033] Reference Figure 2-3 The feedback device 6 includes an alarm 61 and a marking machine 62. The alarm 61 is fixedly installed above the frame 1, and the marking machine 62 is located on the detection channel 34. The alarm 61 includes a speaker 611 and an alarm light 612. The alarm light 612 includes a red, green and yellow light source.

[0034] When the device is working, the aluminum substrate foil to be inspected is transported by the roller 33 from the discharge box 31 to the feed box 32, and the CCD camera 52 takes pictures of the aluminum substrate foil to be inspected with the assistance of the illumination light source 53 and transmits the pictures to the computer 4 for comparison. When the detection is normal, the computer 4 does not output any instructions, the CCD camera 52 continues to take pictures and samples, the marking machine 62 and the speaker 611 do not work, and the alarm light 612 is always on green; when a defect that requires attention is detected (such as oil spots, stains, black spots, stripes, color difference, scratches), the computer 4 controls the marking machine 62 to mark the defect position, and controls the speaker 611 to sound intermittently three times, and the alarm light 612 flashes yellow three times; when a defect that requires manual repair is detected (such as pits, peeling, scratches, wrinkles, foreign matter, pinholes, burrs), the computer 4 controls the marking machine 62 to mark the defect position, and suspends the operation of the detection equipment and controls the speaker 611 to continuously sound and the alarm light 612 to continuously flash red. Embodiment 2

[0035] Reference Figure 1This embodiment is a further optimization scheme of the first to fourth embodiments, and further includes a stabilizing device 7, which includes a backup CCD industrial camera 71 and a backup illumination light source 72, wherein the backup CCD industrial camera 71 is provided with two groups, and the backup illumination light source 72 is provided with multiple groups, and one group of the backup illumination light sources is arranged on both sides of the lens of the backup CCD industrial camera 71. The backup CCD industrial camera 71 and the backup illumination light source 72 are connected to the horizontal electric slide rail 511 and the longitudinal electric slide rail 512 through the rotating seat 54 and are controlled to move by the computer 4. When the equipment is working, the aluminum substrate foil to be inspected passes through the step-by-step inspection channel 34 under the action of the transport roller 33, and the CCD camera 52 takes photos and samples the aluminum substrate foil passing through and transmits them to the computer 4. The computer 4 compares the sampled photos from the CCD camera 52 with the defective photos. If no pattern substantially similar to the defective photos is found, no processing is performed. If a pattern substantially similar to the defective pattern is found on the sampled photos, the feedback device 6 is controlled to provide defect information feedback. During the inspection process, when any group of CCD cameras 52 fails and cannot be inspected, the computer 4 suspends the inspection and simultaneously starts the backup CCD industrial camera 71 and the backup lighting source 72 to move to the position of the faulty CCD camera 52. When the backup CCD industrial camera 71 is started and moves, the faulty CCD camera 52 moves away from the original inspection position to a position away from the backup CCD industrial camera 71. When the backup CCD industrial camera 71 moves to the position of the original CCD camera 52, the computer 4 replaces it to perform the photo taking and sampling work.

[0036] In some embodiments, the faulty CCD camera 52 may not move, and the CCD industrial camera 71 moves toward the position of the faulty CCD camera 52 and stops moving after colliding with it and adjusts the lens shooting angle and range so that the material image it captures is consistent with the material image captured when the faulty CCD camera 52 is not faulty. Embodiment 3

[0037] Reference Figure 2 The difference between this embodiment and the second embodiment is that the feedback component 6 also includes a printing device 63. When the detection is normal, the printing device 63 is in a standby state; when a defect that requires attention or a defect that requires manual repair is detected, the printing device 63 prints the defect image and the defect position on paper, preferably in color, to facilitate manual defect positioning re-inspection or defect repair.

[0038] Reference Figure 2In some embodiments, the feedback component 6 also includes a wireless communication module 64. When the detection is normal, the wireless communication module 64 is in standby mode; when a defect that requires attention or a defect that requires manual repair is detected, the wireless communication module 64 sends the defect image and defect location to the staff's mobile phone or a separate display (not shown in the figure) to facilitate manual defect location re-inspection or defect repair. Embodiment 4

[0039] Reference Figure 4-5 This embodiment is a further optimization scheme of the first embodiment, wherein the electric slide rail 51 is divided into a transverse electric slide rail 511 and a longitudinal electric slide rail 512, and the transverse electric slide rail 511 and the longitudinal electric slide rail 512 can move relative to each other along their length directions. Since the electric slide rail 51 is a prior art, it is not further disclosed in this embodiment.

[0040] The CCD camera 52 and the illumination light source 53 are connected to the transverse electric slide rail 511 through a rotating member (not shown in the figure). Specifically, the rotating member includes a moving motor 8, a gear 81 fixed to one end of the moving motor 8, a first rotating motor 82, and a bearing 83 connecting the moving motor 8 and the first rotating motor 82, wherein the end of the moving motor 8 away from the gear 81 is fixedly connected to the bearing 83. The inner side of the bearing 83 is fixedly connected to the moving motor 8, and the outer side is fixedly connected to the first rotating motor 82. Such an arrangement can ensure that the moving motor 8 and the first rotating motor 82 will not interfere with each other when rotating. A through slot for the gear 81 to move is provided on the transverse electric slide rail 511. A rack 811 that cooperates with the gear 81 is fixedly connected in the through slot. The moving motor 8 drives the gear 81 to move in the through slot by forward and reverse rotation. One end of the first rotating motor 82 is fixedly connected to the bearing 83, and the other end is fixedly connected to the CCD camera 52, wherein the moving motor 8 is coaxially arranged with the rotating shaft of the first rotating motor 82, and the first rotating motor 82 can drive the CCD camera 52 to rotate circumferentially around the axis of the first rotating motor 82 by forward and reverse rotation. When it is necessary to adjust the camera device 5 according to the model of the aluminum substrate foil to be detected, the operator can control the first rotating motor 82 to drive the CCD camera 52 and the illumination light source 53 to rotate circumferentially along the axis of the first rotating motor 82 through the computer 4, and drive the CCD camera to move to a suitable detection position on the horizontal electric slide rail 511 and the longitudinal electric slide rail 512 through the moving motor 8. In order to better illuminate the shooting position of the CCD camera 52, one group of illumination light sources 53 is arranged on both sides of the lens of the CCD camera 52. Embodiment 5

[0041] Reference Figure 5-7This embodiment is a further optimization scheme of the first to fourth embodiments. The rotating seat 54 includes a first rotating seat 541, a second rotating seat 542 and an angle seat 543. The first rotating seat 541 includes a mobile motor 8, a gear 81 fixed to the end of the rotating shaft of the mobile motor 8, a first rotating motor 82, and a bearing 83 connecting the mobile motor 8 and the first rotating motor 82, wherein the end of the mobile motor 8 away from the gear 81 is fixedly connected to the bearing 83, a through slot for the gear 81 to move is provided on the transverse electric slide rail 511, a rack 811 that cooperates with the gear 81 is fixedly connected in the through slot, and the mobile motor 8 moves in the through slot by driving the gear 81 in forward and reverse rotation. The rotating shafts of the mobile motor 8 and the first rotating motor 82 are coaxially arranged.

[0042] The angle seat 543 includes a fixed block 85 fixedly connected to the side wall of the first rotating motor 82, an angle motor 84 fixed to an end of the fixed block 85 away from the first rotating motor 82, and a rotating plate 86 fixedly connected to the rotating shaft end of the angle motor 84, wherein the axis of the angle motor 84 is parallel to the length direction of the CCD camera 52 and is arranged perpendicular to the rotating shaft of the first rotating motor 82. The angle motor 84 can drive the rotating plate 86 to rotate around the rotating shaft of the angle motor 84 by forward and reverse rotation. The second rotating seat 542 includes a second rotating motor 87 fixedly connected to the rotating plate 86, the housing of the second rotating motor 87 is fixedly connected to the rotating plate 86, and the rotating shaft end is fixedly connected to the CCD camera 52. The forward and reverse rotation of the second rotating motor 87 can drive the CCD camera 52 to rotate axially around its axis. Through the above-mentioned rotating seat 54, the CCD camera 52 or the backup CCD industrial camera 71 and the lighting source 53 or the backup lighting source 72 can be controlled by the computer 4, and the shooting position and angle between the lens and the aluminum substrate foil to be inspected can be adjusted on the horizontal electric slide rail 511 and the vertical electric slide rail 512 to further adapt to aluminum substrate foils of different specifications.

[0043] During the inspection process, when the CCD camera 52 fails and cannot be inspected, the computer 4 starts the backup CCD industrial camera 71 and the backup lighting source 72, and moves them to the position of the faulty CCD camera 52. While the backup CCD industrial camera 71 is started and moves, the faulty CCD camera 52 moves away from the original inspection position to a position away from the backup CCD industrial camera 71, and the backup CCD industrial camera 71 moves to the position of the original CCD camera 52 to replace it for taking pictures and sampling. When the CCD camera 52 fails, the entire equipment does not stop, and the backup CCD camera 71 on the same side as the faulty CCD camera 52 immediately starts and starts working, and gradually adjusts the sampling angle and range when moving toward the faulty CCD camera 52, so that the aluminum substrate foil to be inspected passing through the transportation channel 34 will not be missed due to the failure of the CCD camera 52, and the situation where the entire machine stops working due to the failure of the CCD camera 52 can be avoided, thereby improving the stability of the equipment. The backup CCD camera 71 and the backup illumination source 72 can also achieve the purpose of detection without moving. However, since the backup CCD camera 71 and the backup illumination source 72 are arranged in the middle of the detection channel, the time of the aluminum substrate foil to be detected in the detection channel is greatly shortened, so the sampling and shooting speed of the CCD camera 52, the calculation speed of the computer 4 and the feedback speed of the feedback component 6 need to be greatly improved. If they are used at full load continuously, the hardware requirements for them are higher, and they are more easily damaged when used at high load continuously. Therefore, the backup CCD camera 71 is moved to the initial detection position for detection, which has low hardware requirements for the equipment, relatively low cost, and long service life and stability. Embodiment 6

[0044] Reference Figure 8-9 In some embodiments, the axis of the transport roller 33 is arranged parallel to the plane where the detection channel 34 is located to assist the aluminum substrate foil to be detected to move from the discharge box 31 to the feed box 32. In this embodiment, the camera device also includes a vertical electric slide rail 544, and the vertical electric slide rail 544 is provided with a through groove along its length direction, and a rack is fixedly connected in the through groove. The CCD camera 52 is connected to the vertical electric slide rail 544 through a rotating plate 54 and can move along the length direction of the vertical electric slide rail 544. One group of illumination light sources 53 is installed on the transport channel 34, and works together with the illumination light sources 53 on the horizontal electric slide rail 511 to illuminate the two sides of the aluminum substrate foil to be detected. When it is necessary to detect the two sides of the aluminum substrate foil, the operator controls one group of CCD cameras 52 to move to one end away from the horizontal electric slide rail 511 through the computer 4 and drives the second rotating seat 543 to drive the CCD camera 53 to approach until it can take pictures of the bottom surface of the aluminum substrate foil to be detected. Embodiment 7

[0045] Reference Fig.10, in some other embodiments, the horizontal electric slide rail 511 includes a first section and a second section, which are connected by a vertical electric slide rail 544. The two sections of the horizontal electric slide rail 511 and the vertical electric slide rail 544 are connected end to end in sequence and are arranged in a U-shape as a whole. The two sections of the horizontal electric slide rail 511 and the vertical electric slide rail 544 arranged in a U-shape are provided with through grooves along their lengths. The through grooves are arranged in a U-shape and are fixedly connected with racks inside. The CCD camera 52 is installed on the two sections of the horizontal electric slide rail 511 and the vertical electric slide rail 544 through a rotating plate 54 and can move from one end of one section of the horizontal electric slide rail 511 through the vertical electric slide rail 544 to the other end of the other section of the horizontal electric slide rail 511, so as to place the CCD camera on the side of the aluminum base foil to be detected away from the longitudinal electric slide rail 512 to detect the aluminum base foil.

[0046] A method for detecting surface defects of an aluminum base foil in this application is as follows: S1. The staff inputs the width and length data of the aluminum base foil to be detected through a computer. The computer forms a driving instruction according to the input data and drives the CCD camera and the lighting source to move to the corresponding photographing and sampling positions; S2. The staff inputs the defect type patterns of the aluminum base foil to be detected into the computer for subsequent comparison between the sampled pictures and the defect patterns; S3. Place the aluminum base foil to be detected in the feeding box and pass one end of it around the transport roller in sequence through the entire detection channel and then fix it in the discharging box; S4. Turn on the switch of the transport device. The aluminum base foil to be detected moves from the feeding box to the discharging box under the transport of the transport roller. The CCD camera takes pictures and samples the passing aluminum base foil with the assistance of the lighting source. After taking pictures and sampling, the CCD camera transmits the sampled pictures to the computer; S5. The computer compares the sampled pictures from the CCD camera with the defect patterns; If no pattern basically the same as the defect pattern is found, no instruction is issued, and the CCD camera continues to take pictures and sample and transmits the sampled pictures to the computer; If a sampled picture basically the same as the defect pattern is found, the computer first sends instruction information to the feedback device and drives it to perform corresponding operations, and then sends an instruction to the CCD camera to continue taking pictures and sampling; S6. The feedback device performs marking processing on the defect position and gives an alarm according to the computer instruction; S61. The wireless communication module or printer in the feedback device sends the defect position information and the defect pattern to a specified device or prints and outputs them.

[0047] The above technical solution can be used to directly detect defects on aluminum substrate foil through detection equipment, and can also adapt to the detection needs of diversified aluminum substrate foil products. When defects are detected in aluminum substrate foil, the staff can directly see the defect pattern through the printed defect pattern or on the designated display device, so as to determine the treatment method or treatment time of the defect, further improving work efficiency and labor efficiency ratio.

[0048] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An aluminum substrate foil surface defect detection device, characterized in that: It includes a rack, a transport device arranged on the rack, a computer arranged on the rack, a camera arranged on the rack, a feedback device arranged on the rack, and a stabilizing device; The transport device comprises a feed box, a transport roller arranged along the outlet direction of the feed box, and a discharge box arranged on the side of the transport roller away from the feed box, a detection channel is formed between the feed box and the discharge box, and the transport roller can rotate in a circle around its own axis; The camera device includes an electric slide rail, a CCD camera and an illumination light source which are arranged on the electric slide rail and are controlled by the computer, and a rotating seat connecting the CCD camera and the electric slide rail. The CCD camera can move along the length direction of the electric slide rail and rotate around the axis of the rotating seat. The camera device collects material image information and transmits it to the computer. The feedback device is controlled by a computer and performs feedback processing on information from the computer; The stabilizing device includes a backup CCD industrial camera and a backup lighting source. The backup CCD industrial camera and the backup lighting source are installed on an electric slide rail and can move along the length direction of the electric slide rail. The backup CCD industrial camera and the backup lighting source are controlled by a computer to approach or move away from the CCD camera and the lighting source.

2. The aluminum substrate foil surface defect detection device according to claim 1, characterized in that: A plurality of the transport rollers are arranged at intervals, and the plurality of transport rollers are arranged at intervals along the length direction of the transport channel.

3. The aluminum substrate foil surface defect detection device according to claim 2, characterized in that: The CCD cameras are arranged in two groups, the two groups of CCD cameras are respectively close to the feed box and the discharge box, and the lenses of the two groups of CCD cameras are arranged opposite to each other.

4. The aluminum substrate foil surface defect detection device according to claim 3, characterized in that: The rotating seat comprises a first rotating seat and a second rotating seat, wherein the first rotating seat is arranged perpendicular to the axis of the second rotating seat.

5. The aluminum substrate foil surface defect detection device according to claim 4, characterized in that: Each of the CCD cameras is provided with an illumination light source, and each of the backup CCD cameras is provided with a backup illumination light source.

6. The aluminum substrate foil surface defect detection device according to claim 5, characterized in that: The feedback device includes a marking machine and an alarm. The marking machine marks and codes the position information determined as a defect from the computer, and the alarm issues an alarm after receiving the defect information from the computer.

7. The aluminum substrate foil surface defect detection device according to claim 6, characterized in that: The feedback device further comprises a printing device, which is controlled by the computer to print the defect pattern from the CCD camera.

8. The aluminum substrate foil surface defect detection device according to claim 7, characterized in that: The feedback device further comprises a wireless communication module, and the wireless communication module is controlled by the computer to transmit the defect pattern to other display devices through wireless communication.

9. A method for detecting surface defects of aluminum substrate foil, using the detection device according to any one of claims 1 to 8, characterized in that: The steps include: S1. The staff inputs the width and length data of the aluminum substrate foil to be tested through the computer. The computer generates a driving instruction according to the input data to drive the CCD camera and the illumination light source to move to the corresponding photo sampling position; S2. The staff inputs the defect pattern of the aluminum substrate foil into the computer for comparison between the subsequent sampling pictures and the defect pattern; S3, placing the aluminum substrate foil to be tested into the feed box and having one end of the foil pass through the transport roller in sequence through the entire testing channel and then fixed into the discharge box; S4, turning on the switch of the transport device, the aluminum substrate foil to be inspected moves from the feed box to the discharge box under the transport of the transport roller, and the CCD camera takes photos and samples the passing aluminum substrate foil with the assistance of the lighting source, and after taking photos and sampling, the CCD camera transmits the sampled photos to the computer; S5. The computer compares the sampled photo from the CCD camera with the defect pattern; If no pattern substantially identical to the defective pattern is found, no instruction is issued, and the CCD camera continues to take pictures and samples and transmits the sampled pictures to the computer; If a sampling picture identical to the defect pattern is found, the computer first sends instruction information to the feedback device and drives it to give a light alarm and an alarm, and then sends a command to the CCD camera to continue taking pictures and sampling; S6. The feedback device marks the defect location and issues an alarm according to computer instructions.

10. A method for detecting surface defects of aluminum substrate foil according to claim 9, characterized in that: The step S6 also includes S61, the wireless communication module or printer in the feedback device outputs the defect position information and the defect pattern to a designated device or prints.

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