A sheet-like element detection apparatus

Abstract

The application relates to the technical field of visual inspection of sheet-like elements, in particular to a sheet-like element detection device which comprises a station switching mechanism, a first conveying mechanism, a feeding mechanism, a visual inspection mechanism, a second conveying mechanism, a discharging mechanism and a rejection mechanism; the first conveying mechanism is used for storing and conveying a large quantity of sheet-like workpieces to be detected, thereby effectively improving the production rhythm. The feeding mechanism is used for quickly transferring the sheet-like workpieces on the first conveying mechanism to a feeding station. The visual inspection mechanism is used for detecting whether the sheet-like workpieces on the detection station have defects. The second conveying mechanism is used for conveying and storing a large quantity of qualified sheet-like workpieces. The discharging mechanism is used for quickly transferring the qualified sheet-like workpieces from a discharging station to the second conveying mechanism. The rejection mechanism is used for quickly separating the sheet-like workpieces with defects from a rejection station. Overall, the visual inspection efficiency is greatly improved, and the missed detection rate and the misjudgment rate are effectively reduced.

Description

Technical Field

[0001] This application relates to the field of visual inspection technology for sheet-like components, and in particular to an inspection device for sheet-like components. Background Technology

[0002] The thickness of sheet-like components such as flexible circuit boards, semiconductor chip wafers, and microcapacitor films ranges from 0.01mm to 1mm. After production, these sheet-like components require defect detection.

[0003] Currently, when inspecting sheet-like workpieces, the feeding mechanism supplies the sheet-like workpieces to be inspected, the vision inspection mechanism performs visual inspection on the sheet-like workpieces, and the unloading mechanism transfers the sheet-like workpieces that have completed inspection.

[0004] The existing technical solutions mentioned above have the following drawbacks: when performing visual inspection on thin sheet-like workpieces, the inspection efficiency is low, and the rate of missed detection and false judgment is high. Summary of the Invention

[0005] In order to improve detection efficiency and reduce the rate of missed detection and false judgment, this application provides a detection device for sheet-like components.

[0006] This application provides a device for detecting sheet-like components, which adopts the following technical solution: A device for testing sheet-like components, comprising: The station switching mechanism can drive the sheet-like workpiece from the loading station to the inspection station, unloading station and rejection station in sequence; The first conveying mechanism is located on the first side of the workstation switching mechanism and is used to store and convey the sheet-like workpieces to be inspected. The loading mechanism is located above the first conveying mechanism and the station switching mechanism, and is used to transfer the sheet-like workpieces on the first conveying mechanism to the loading station; The visual inspection mechanism is located on the second side of the workstation switching mechanism and is used to detect whether there are defects in the sheet-like workpieces that arrive at the inspection station. The second conveying mechanism is located on the third side of the workstation switching mechanism and is used to convey and store qualified sheet-like workpieces. The unloading mechanism is located above the second conveying mechanism and the station switching mechanism, and is used to transfer qualified sheet-like workpieces from the unloading station to the second conveying mechanism; The rejection mechanism, located on the fourth side of the workstation switching mechanism, is used to remove defective sheet-like workpieces from the rejection station.

[0007] This application further specifies that the first conveying mechanism includes: The first conveying assembly is used to convey a full pallet; the loading mechanism transfers the sheet-like workpieces on the full pallet to the loading station. The peeling assembly is installed on top of the first conveying assembly to separate the sheet-like workpieces one by one from the workpiece stack. The first depalletizing assembly is located at one end of the first conveying assembly and is used to detach full pallets one by one from the full pallet stack and to convey full pallets one by one to the first conveying assembly. The first stacking assembly, located at the other end of the first conveying assembly, is used to convey empty pallets one by one and is capable of stacking empty pallets.

[0008] This application further specifies that the first conveying component includes: First support; There are two first drive wheels, which are rotatably mounted on opposite inner sides of the first bracket. There are two first rotary actuators, which are respectively installed on the opposite outer sides of the first bracket. The output shaft is fixedly connected to the two first drive wheels one by one, and is used to drive the corresponding first drive wheels to rotate. There are four first driven wheels; two of them are rotatably mounted on opposite ends of one inner side of the first bracket, and the other two are rotatably mounted on opposite ends of the other inner side of the first bracket. There are four first reversing wheels; two of them are rotatably mounted on the middle of one inner side of the first bracket, and the other two are rotatably mounted on the middle of the other inner side of the first bracket. There are two first drive belts; one first drive belt passes sequentially around a first driving pulley, a first reversing pulley, a first driven pulley, another first driven pulley, and another first reversing pulley located on one side; the other first drive belt passes sequentially around a first driving pulley, a first reversing pulley, a first driven pulley, another first driven pulley, and another first reversing pulley located on the other side; the top surfaces of the two first drive belts are used to support a full pallet; The second support is located inside the first support; The first lifting plate is movably disposed between the two first transmission belts; The first linear actuator has a vertically set axis and is mounted on the second bracket. Its output shaft is fixedly connected to the first lifting plate and is used to drive the first lifting plate to move up and down. The stripping components include: The floating frame can be installed on the top of the first bracket, floating up and down. Multiple peeling rods are evenly installed on the top of the floating frame along the length of the floating frame; each peeling rod has multiple peeling teeth on at least one side; the length of the multiple peeling teeth gradually increases from bottom to top, and the width of the tooth tip gradually decreases from bottom to top. The first destacking assembly includes: The third support has first intercepting bars formed at the four corners of its top; There are two second drive wheels, which are rotatably mounted on opposite inner sides of the third bracket. There are two second rotary drives, which are respectively installed on the opposite outer sides of the third bracket. The output shaft is fixedly connected to the two second drive wheels one by one, and is used to drive the corresponding second drive wheels to rotate. There are four second driven wheels; two of them are rotatably mounted on opposite ends of one inner side of the third bracket, and the other two are rotatably mounted on opposite ends of the other inner side of the third bracket. There are four second reversing wheels; two of them are rotatably mounted on the middle of one inner side of the third bracket, and the other two are rotatably mounted on the middle of the other inner side of the third bracket. There are two second drive belts; one second drive belt passes sequentially around a second driving pulley, a second reversing pulley, a second driven pulley, another second driven pulley, and another second reversing pulley located on one side; the other second drive belt passes sequentially around a second driving pulley, a second reversing pulley, a second driven pulley, another second driven pulley, and another second reversing pulley located on the other side; the top surfaces of the two second drive belts are used to support a full pallet; The fourth support is located inside the third support; The second lifting plate is movably positioned between the two second transmission belts; The second linear actuator, with its axis set vertically, is mounted on the fourth bracket. Its output shaft is fixedly connected to the second lifting plate and is used to drive the second lifting plate to move up and down. The first insert plate, consisting of two, is mounted on the top of opposite sides of the third bracket, and can be moved towards or away from each other. There are two third linear actuators, which are respectively installed on the opposite outer sides of the third bracket. The output shafts are fixedly connected to the two first inserts in a one-to-one correspondence, and are used to drive the corresponding first inserts to move. The first stacking assembly includes: The fifth support has a second intercepting bar formed at each of the four corners at the top. The third drive wheel consists of two wheels, which are rotatably mounted on opposite inner sides of the fifth bracket. There are two third rotary actuators, which are respectively installed on the opposite outer sides of the fifth bracket. The output shaft is fixedly connected to the two third drive wheels in a one-to-one correspondence, and is used to drive the corresponding third drive wheels to rotate. There are four third driven wheels; two of them are rotatably mounted on opposite ends of one inner side of the fifth bracket, and the other two are rotatably mounted on opposite ends of the other inner side of the fifth bracket. There are four third reversing wheels; two of them are rotatably mounted on the middle of one inner side of the fifth bracket, and the other two are rotatably mounted on the middle of the other inner side of the fifth bracket. There are two third drive belts; one third drive belt passes sequentially around a third driving pulley, a third reversing pulley, a third driven pulley, another third driven pulley, and another third reversing pulley located on one side; the other third drive belt passes sequentially around a third driving pulley, a third reversing pulley, a third driven pulley, another third driven pulley, and another third reversing pulley located on the other side; the top surfaces of the two third drive belts are used to support empty pallets; The sixth support is located inside the fifth support; The third lifting plate is movable up and down between the two third transmission belts; The fourth linear actuator, with its axis set vertically, is mounted on the sixth bracket. Its output shaft is fixedly connected to the third lifting plate and is used to drive the third lifting plate to move up and down. The second insert plate, consisting of two, is mounted on the top of opposite sides of the fifth bracket, and can be moved towards or away from each other. The fifth linear actuator, consisting of two, is mounted on opposite outer sides of the fifth bracket. Its output shaft is fixedly connected to the two second insert plates in a one-to-one correspondence, and is used to drive the corresponding second insert plates to move.

[0009] This application further specifies that the second conveying mechanism includes: The second conveying assembly is used to convey empty pallets; the unloading mechanism transfers qualified sheet-like workpieces from the unloading station to the empty pallets; The second depalletizing assembly is located at one end of the second conveying assembly and is used to remove empty pallets one by one from the empty pallet stack and to convey empty pallets one by one to the second conveying assembly. The second stacking assembly, located at the other end of the second conveying assembly, is used to convey full pallets one by one and is capable of stacking full pallets.

[0010] This application further specifies that the feeding mechanism includes: The seventh support is mounted above the first conveying mechanism; The first housing is mounted on the seventh bracket and has a first guide groove formed inside; The first swing rod is swingably disposed inside the first housing, and a first guide hole is formed at one end; The first slider is slidably mounted in the first guide groove and the first guide hole; The first follower block is disposed inside the first housing and is rotatably connected to the first slider; The first slide rail is vertically set and its top end is fixedly connected to the bottom end of the first follower block; The second slide rail is horizontally set and fixed to the bottom inside the first housing; The second slider is slidably connected to the first slide rail and the second slide rail respectively; The middle part of the first transmission plate is fixedly connected to the bottom end of the first slide rail; There are two first transfer seats, which are fixed to opposite ends of the first transmission plate respectively; There are multiple first suction nozzles, each mounted on one of the first transfer seats, used to attach or detach the sheet-like workpiece from the bottom surface of the corresponding first transfer seat; There are multiple second suction nozzles, each mounted on another first transfer seat, used to attach or detach sheet-like workpieces from the bottom surface of the corresponding first transfer seat; The fourth rotary driver is mounted on the seventh bracket, and its output shaft is fixedly connected to the end of the first swing rod away from the first slider, for driving the first swing rod to swing. The structure of the unloading mechanism is the same as that of the loading mechanism.

[0011] This application further specifies that the excluded organizations include: The eighth support is installed above the rejection station; The second housing is mounted on the eighth bracket and has a second guide groove formed inside; The second swing rod is swingably disposed inside the second housing, and a second guide hole is formed at one end; The third slider is slidably installed in the second guide groove and the second guide hole; The second follower block is disposed inside the second housing and is rotatably connected to the third slider; The third slide rail is vertically set and its top end is fixedly connected to the bottom end of the second follower block; The fourth slide rail is horizontally set and fixed to the bottom inside the second housing; The fourth slider is slidably connected to the third and fourth slide rails respectively; The second transmission plate is fixedly connected in the middle to the bottom of the third slide rail; The second transfer seat is fixed to the second transmission plate; There are multiple third suction nozzles, each installed on the second transfer seat, used to attach or detach sheet-like workpieces from the bottom surface of the second transfer seat; The fifth rotary driver is mounted on the eighth bracket, and its output shaft is fixedly connected to the end of the second swing rod away from the third slider, which is used to drive the second swing rod to swing. The first linear module is located below the second transfer station; The bottom end of the support plate is fixedly connected to the slide of the first linear module; The storage boxes, in multiple units, are fixed to the top of the support plate, each with a receiving interface at the top. They move with the support plate and are used to store thin sheet-like components with defects.

[0012] This application further specifies that the workstation switching mechanism includes: A rotating disk that can rotate around its own axis; Multiple carriers are evenly mounted on the top surface of the rotating disk along the circumference of the rotating disk and rotate with the rotating disk; each carrier has multiple receiving slots for accommodating sheet-shaped workpieces. The gearbox is located below the rotating disk, and its output end is fixedly connected to the middle of the bottom surface of the rotating disk. The sixth rotary drive is located below the rotary disk, and its output shaft is fixedly connected to the input end of the gearbox.

[0013] This application further specifies that there are three testing stations, namely the first testing station, the second testing station, and the third testing station; There are three visual inspection agencies, namely the first visual inspection agency, the second visual inspection agency, and the third visual inspection agency; First-line vision inspection agencies include: Ninth support; The second linear module is mounted on the ninth bracket; The first movable seat is fixedly connected to the slide of the second linear module; There are two first adapter rods, both vertically installed, and each can be moved up and down on the first movable base. There are two second adapter rods, both horizontally set, with one end fixedly connected to the bottom end of each of the two first adapter rods. There are two first-side light sources, each set at an angle and connected to two corresponding second adapter rods, each capable of moving along the axial direction of its corresponding second adapter rod; both first-side light sources are located above the first detection station. The first camera, with its axis vertically set and its lens facing downward, is mounted on the first movable base and is located above the two first side light sources; The first backlight is located below the first inspection station; Second vision inspection agencies include: The tenth support is located below the second testing station; The support base is movable on the tenth bracket along the width direction of the tenth bracket body, and multiple vertically arranged fifth slide rails are formed on the side away from the tenth bracket. There are multiple fifth sliders, each corresponding to a fifth slide rail; The second camera consists of multiple cameras, all with vertical axes and upward-facing lenses, and is fixedly connected to multiple fifth sliders in a one-to-one correspondence. The second side light source consists of two sources, which are respectively mounted at an angle on the tenth bracket. Both are located below the second detection station and above the second camera. The second backlight is located above the second inspection station; The structure of the third vision inspection mechanism is the same as that of the first vision inspection mechanism.

[0014] This application further includes: The first transfer mechanism is located between the first conveying mechanism and the workstation switching mechanism. It is used to temporarily store the sheet-like workpiece to be inspected and to adjust the posture and position of the sheet-like workpiece to be inspected. The second transfer mechanism, located between the second conveying mechanism and the workstation switching mechanism, is used to temporarily store qualified sheet-like workpieces.

[0015] This application further includes: The frame is equipped with a station switching mechanism, a first conveying mechanism, a second conveying mechanism, a feeding mechanism, a discharging mechanism, a rejection mechanism, a visual inspection mechanism, a first transfer mechanism, and a second transfer mechanism on the top.

[0016] In summary, the beneficial technical effects of this application are as follows: 1. The station switching mechanism can drive sheet-like workpieces from the loading station through the inspection station, unloading station, and rejection station in sequence. By connecting the loading, inspection, unloading, and rejection stations in series, the sheet-like workpieces to be inspected can flow rapidly between stations without manual intervention, significantly improving visual inspection efficiency. The first conveying mechanism stores and transports large quantities of sheet-like workpieces to be inspected, effectively increasing production cycle time. The loading mechanism quickly transfers sheet-like workpieces from the first conveying mechanism to the loading station. The visual inspection mechanism detects defects in the sheet-like workpieces arriving at the inspection station. The second conveying mechanism transports and stores large quantities of qualified sheet-like workpieces. The unloading mechanism quickly transfers qualified sheet-like workpieces from the unloading station to the second conveying mechanism. The rejection mechanism quickly removes defective sheet-like workpieces from the rejection station. Overall, this significantly improves visual inspection efficiency and effectively reduces the missed detection rate and false judgment rate. Furthermore, the wraparound layout offers higher space utilization compared to a linear layout, facilitating miniaturization. The independent division of movement space for each mechanism prevents interference that could lead to equipment malfunction.

[0017] 2. The peeling component is installed on top of the first conveying component, which allows the sheet-like workpieces to be removed from the workpiece stack one by one, avoiding the simultaneous removal of multiple layers of sheet-like workpieces from the pallet, thereby effectively reducing the missed inspection rate and reducing the possibility of qualified workpieces being misjudged due to unqualified workpieces. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of a sheet-like component testing device; Figure 2 yes Figure 1 A schematic diagram of the thin-film element detection device from another perspective; Figure 3 yes Figure 1 A schematic diagram of an embodiment of the first conveying mechanism in the sheet-like component detection device shown; Figure 4 yes Figure 3 A schematic diagram of the structure of an embodiment of the first conveying component in the first conveying mechanism shown; Figure 5 yes Figure 3 A schematic diagram of an embodiment of the stripping assembly in the first conveying mechanism is shown; Figure 6 yes Figure 5 A magnified view of a portion of region A in the middle; Figure 7 This is a structural schematic diagram of another embodiment of the stripped component; Figure 8 yes Figure 3 A schematic diagram of an embodiment of the first destacking assembly in the first conveying mechanism is shown; Figure 9 yes Figure 3 A schematic diagram of the structure of an embodiment of the first stacking assembly in the first conveying mechanism is shown; Figure 10 yes Figure 1 A schematic diagram of an embodiment of the second conveying mechanism in the sheet-like element detection device shown; Figure 11 yes Figure 1 A schematic diagram of the combined structure of the station switching mechanism, feeding mechanism, unloading mechanism, rejection mechanism, first transfer mechanism and second transfer mechanism in the sheet-like component testing equipment shown; Figure 12 This is a schematic diagram of one embodiment of the feeding mechanism; Figure 13 This is a schematic diagram of one embodiment of the rejection mechanism; Figure 14 This is a schematic diagram of a workstation switching mechanism according to one embodiment; Figure 15 yes Figure 14A schematic diagram of the structure of one embodiment of the carrier in the workstation switching mechanism shown; Figure 16 yes Figure 1 A schematic diagram of the combined structure of the station switching mechanism, the first vision inspection mechanism, the second vision inspection mechanism and the third vision inspection mechanism in the sheet-like component inspection equipment shown; Figure 17 This is a structural schematic diagram of an embodiment of a first-vision inspection mechanism; Figure 18 This is a schematic diagram of the structure of one embodiment of the second vision inspection mechanism; Figure 19 This is a schematic diagram of an embodiment of the first transfer mechanism. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-19 This application will be described in further detail.

[0020] Reference Figure 1 and Figure 2This application discloses a sheet-like component inspection device, including a station switching mechanism 110, a first conveying mechanism 120, a loading mechanism 140, a vision inspection mechanism, a second conveying mechanism 130, a unloading mechanism 150, and a rejection mechanism 160. The station switching mechanism 110 can drive the sheet-like workpiece from the loading station 210 through the inspection station, the unloading station 230, and the rejection station 240 in sequence. By connecting the loading station 210, the inspection station, the unloading station 230, and the rejection station 240 in series using the station switching mechanism 110, the sheet-like workpieces to be inspected can be rapidly transferred between the stations without manual intervention, greatly improving the efficiency of vision inspection. The first conveying mechanism 120 is located on the first side of the station switching mechanism 110 and is used to store and transport large quantities of sheet-like workpieces to be inspected, effectively improving the production cycle time. A loading mechanism 140 is positioned above the first conveying mechanism 120 and the station switching mechanism 110, used to quickly transfer sheet-like workpieces from the first conveying mechanism 120 to the loading station 210. A vision inspection mechanism is positioned on the second side of the station switching mechanism 110, used to detect whether the sheet-like workpieces approaching the inspection station have defects. A second conveying mechanism 130 is positioned on the third side of the station switching mechanism 110, used to convey and store large quantities of qualified sheet-like workpieces. A unloading mechanism 150 is positioned above the second conveying mechanism 130 and the station switching mechanism 110, used to quickly transfer qualified sheet-like workpieces from the unloading station 230 to the second conveying mechanism 130. A rejection mechanism 160 is positioned on the fourth side of the station switching mechanism 110, used to quickly remove defective sheet-like workpieces from the rejection station 240. It should be noted that only defective sheet-like workpieces will reach rejection station 240, while qualified sheet-like workpieces will not. Overall, this significantly improves the efficiency of visual inspection and effectively reduces the missed detection rate and false judgment rate. Furthermore, the wraparound layout, compared to a linear layout, offers higher space utilization and facilitates miniaturization. The independent division of motion space for each mechanism avoids motion interference that could lead to equipment malfunction.

[0021] Reference Figure 1 and Figure 3In one embodiment, the first conveying mechanism 120 includes a first conveying assembly 121, a peeling assembly 122, a first destacking assembly 123, and a first stacking assembly 124. The first conveying assembly 121 is used to convey a full pallet 310. The loading mechanism 140 transfers the sheet-like workpieces on the full pallet 310 to the loading station 210. It should be noted that there is static electricity between the multiple layers of sheet-like workpieces forming the workpiece stack, causing the multiple layers of sheet-like workpieces to stick together. The peeling assembly 122 is installed on the top of the first conveying assembly 121, so that the sheet-like workpieces are detached from the workpiece stack one by one, avoiding the simultaneous detachment of multiple layers of sheet-like workpieces from the pallet, thereby effectively reducing the missed inspection rate and reducing the possibility of qualified workpieces being misjudged due to unqualified workpieces. The first destacking assembly 123 is disposed at one end of the first conveying assembly 121, so as to detach the full pallet 310 one by one from the full pallet stack, and can convey the full pallet 310 one by one to the first conveying assembly 121. The first stacking assembly 124 is located at the other end of the first conveying assembly 121 and is used to convey empty pallets 320 one by one and to stack empty pallets 320. The first destacking assembly 123, the first conveying assembly 121 and the first stacking assembly 124 cooperate with each other to store, convey and supply a large number of sheet-like workpieces to be inspected, realizing fully automated pallet flow, eliminating the need for manual intervention in pallet destacking, conveying and stacking tasks, and greatly improving the inspection cycle time.

[0022] Reference Figure 3 and Figure 4In one embodiment, the first conveying assembly 121 includes a first bracket 1211, a first drive wheel (not shown), two first rotary drivers 1212, four first driven wheels 1213, four first reversing wheels 1214, two first transmission belts 1215, a second bracket 1216, a first lifting plate 1217, and a first linear driver 1218. The two first drive wheels are rotatably mounted on opposite inner sides of the first bracket 1211. The two first rotary drivers 1212 are mounted on opposite outer sides of the first bracket 1211, and their output shafts are fixedly connected to the two first drive wheels one-to-one, respectively driving the corresponding first drive wheels to rotate. Two first driven wheels 1213 are rotatably mounted on opposite ends of one inner side of the first bracket 1211, and the other two first driven wheels 1213 are rotatably mounted on opposite ends of the other inner side of the first bracket 1211. Two first reversing pulleys 1214 are rotatably mounted on the middle of one inner side of the first bracket 1211, and two other first reversing pulleys 1214 are rotatably mounted on the middle of the other inner side of the first bracket 1211. One first drive belt 1215 sequentially wraps around a first driving pulley, one first reversing pulley 1214, one first driven pulley 1213, another first driven pulley 1213, and another first reversing pulley 1214 located on one side. The other first drive belt 1215 sequentially wraps around a first driving pulley, one first reversing pulley 1214, one first driven pulley 1213, another first driven pulley 1213, and another first reversing pulley 1214 located on the other side. The top surfaces of the two first drive belts 1215 are used to support the full pallet 310. A second bracket 1216 is disposed inside the first bracket 1211. A first lifting plate 1217 is movably disposed between the two first drive belts 1215. The first linear actuator 1218 is vertically mounted on the second bracket 1216, and its output shaft is fixedly connected to the first lifting plate 1217, used to drive the first lifting plate 1217 to move up and down. The first destacking assembly 123 transfers the full pallet 310 onto the two first transmission belts 1215. The two first rotary actuators 1212 drive the corresponding first drive wheels to rotate, so that the corresponding first transmission belts 1215 run on the corresponding first reversing wheels 1214 and first driven wheels 1213, thereby driving the full pallet 310 to move. When the full pallet 310 reaches directly below the stripping assembly 122, the first linear actuator 1218 drives the first lifting plate 1217 to move upward to lift the full pallet 310, ensuring the stability of the position of the full pallet 310 during the loading process. As the number of sheet-like workpieces in the full tray 310 decreases, the first linear actuator 1218 intermittently drives the first lifting plate 1217 to move slightly upward, so that the uppermost sheet-like workpiece is always kept at the optimal height.After all the sheet-like workpieces in the full pallet 310 have been transferred, the first linear driver 1218 drives the first lifting plate 1217 downwards, causing the empty pallet 320 to fall onto the two first transmission belts 1215. The two first rotary drivers 1212 drive the corresponding first driving pulleys to rotate, so that the corresponding first transmission belts 1215 run on the corresponding first reversing pulleys 1214 and first driven pulleys 1213, thereby moving the empty pallet 320 toward the first stacking assembly 124. The two first transmission belts 1215 cooperate with each other to keep the pallet in a horizontal plane during the conveying process, preventing the pallet from tilting and thus preventing the sheet-like workpieces from moving and misaligning within the pallet. Each first transmission belt 1215 passes around one first driving pulley, two first reversing pulleys 1214, and two first driven pulleys 1213, forming a multi-pulse tensioned closed path, preventing the first transmission belts 1215 from slipping or slackening, and ensuring the smoothness of the conveying.

[0023] Reference Figure 3 , Figure 5 and Figure 6 In one embodiment, the peeling assembly 122 includes a floating frame 1221 and a plurality of peeling rods 1222. The floating frame 1221 is mounted vertically on the top of the first support 1211 by a plurality of springs. The plurality of peeling rods 1222 are evenly mounted on the top of the floating frame 1221 along the length of the floating frame 1221. At least one side of each peeling rod 1222 is provided with multi-layer peeling teeth 12221. Since the floating frame 1221 can float vertically, it can adaptively compensate for height. When the workpiece stack tilts slightly, the floating frame 1221 can automatically tilt to adapt, ensuring that the multi-layer peeling teeth 12221 can all contact the workpiece surface. The tooth length of the multi-layer peeling teeth 12221 gradually increases from bottom to top, and the tooth tip width gradually decreases from bottom to top. In this way, it can effectively separate two adjacent layers of sheet-like workpieces, and also avoid scratching the sheet-like workpieces.

[0024] Reference Figure 7In another embodiment, the peeling assembly 122 includes a floating frame 1221, a plurality of peeling rods 1222, a plurality of first isolation cylinders 1223, a plurality of second isolation cylinders 1224, a plurality of first adhesive rollers 1225, a plurality of second adhesive rollers 1226, a plurality of fourth driven rollers 1227, a plurality of fifth driven rollers 1228, a fourth driving roller 12294, a fourth transmission belt 12295, a seventh rotary actuator 12296, a fifth driving roller 12291, a fifth transmission belt 12292, and an eighth rotary actuator 12293. The floating frame 1221 is mounted vertically on the top of the first bracket 1211 by a plurality of springs. The plurality of peeling rods 1222 are evenly mounted on the top of the floating frame 1221 along the length of the floating frame 1221. At least one side of each peeling rod 1222 is provided with multiple layers of peeling teeth 12221. Because the floating frame 1221 can float vertically, it can adaptively compensate for height. When the workpiece stack tilts slightly, the floating frame 1221 automatically tilts to adapt, ensuring that all multi-layer peeling teeth 12221 can contact the workpiece surface. The tooth length of the multi-layer peeling teeth 12221 gradually increases from bottom to top, while the tooth tip width gradually decreases from bottom to top. In this way, it can effectively separate adjacent layers of thin sheet-like workpieces while avoiding scratching the thin sheet-like workpieces. Multiple first isolation cylinders 1223 are installed on one side of the top of the peeling rod 1222, corresponding to multiple peeling rods 1222. Multiple second isolation cylinders 1224 are installed on the other side of the top of the peeling rod 1222, corresponding to multiple peeling rods 1222. Each first isolation cylinder 1223 and each second isolation cylinder 1224 has a through hole 12231 formed on one side. Multiple first bonding rollers 1225 are rotatably installed inside the first isolation cylinder 1223, corresponding to multiple first isolation cylinders 1223. Each first bonding roller 1225 has an adhesive layer on its outer wall to allow the edge of a sheet-like workpiece to be bonded to the outer wall of the first bonding roller 1225. Multiple second bonding rollers 1226 are rotatably mounted inside multiple second isolation cylinders 1224, corresponding one-to-one. Each second bonding roller 1226 has an adhesive layer on its outer wall to allow the edge of a sheet-like workpiece to be bonded to the outer wall of the second bonding roller 1226. Multiple fourth driven wheels 1227 are sleeved on one end of each of the first bonding rollers 1225, corresponding one-to-one. Multiple fifth driven wheels 1228 are sleeved on one end of each of the second bonding rollers 1226, corresponding one-to-one. A seventh rotary actuator 12296 is mounted on the top of the floating frame 1221. A fourth driving wheel 12294 is fixedly connected to the output shaft of the seventh rotary actuator 12296. The fourth drive belt 12295 passes around the fourth driving pulley 12294 and each of the fourth driven pulleys 1227.The seventh rotary actuator 12296 drives the fourth drive wheel 12294 to rotate counterclockwise, thereby causing each fourth driven wheel 1227 and each first adhesive roller 1225 to rotate counterclockwise. The eighth rotary actuator 12293 is mounted on the top of the floating frame 1221. The fifth drive wheel 12291 is fixedly connected to the output shaft of the eighth rotary actuator 12293. The fifth drive belt 12292 passes around the fifth drive wheel 12291 and each fifth driven wheel 1228. The eighth rotary actuator 12293 drives the fifth drive wheel 12291 to rotate clockwise, thereby causing each fifth driven wheel 1228 and each second adhesive roller 1226 to rotate counterclockwise. During the separation of adjacent two layers of sheet-like workpieces, one edge of the lower layer of sheet-like workpiece can adhere to the outer wall of the first adhesive roller 1225, and the other edge can adhere to the outer wall of the second adhesive roller 1226. Then, the seventh rotary driver 12296 drives the fourth drive wheel 12294 to rotate counterclockwise, thereby causing each fourth driven wheel 1227 and each first adhesive roller 1225 to rotate counterclockwise, so that one edge of the sheet-like workpiece is disconnected from the outer wall of the first adhesive roller 1225. The eighth rotary driver 12293 drives the fifth drive wheel 12291 to rotate clockwise, thereby causing each fifth driven wheel 1228 and each second adhesive roller 1226 to rotate counterclockwise, so that the other edge of the sheet-like workpiece is disconnected from the outer wall of the second adhesive roller 1226. Afterwards, the sheet-like workpiece falls naturally. Overall, the peeling effect is further improved, thereby further reducing the missed detection rate and the false detection rate.

[0025] Reference Figure 3 and Figure 8In one embodiment, the first destacking assembly 123 includes a third bracket 1231, two second drive wheels (not shown), two second rotary actuators 1232, four second driven wheels 1233, four second reversing wheels 1234, two second transmission belts 1235, a fourth bracket 1236, a second lifting plate 1237, a second linear actuator 1238, two first insert plates 12391, and two third linear actuators 12392. First intercepting rods 12311 are formed at the four corners of the top of the third bracket 1231. The two second drive wheels are rotatably mounted on opposite inner sides of the third bracket 1231. The two second rotary actuators 1232 are mounted on opposite outer sides of the third bracket 1231, and their output shafts are fixedly connected to the two second drive wheels one-to-one, respectively driving the corresponding second drive wheels to rotate. Two second driven pulleys 1233 are rotatably mounted on opposite ends of one inner side of the third bracket 1231, and two other second driven pulleys 1233 are rotatably mounted on opposite ends of the other inner side of the third bracket 1231. Two second reversing pulleys 1234 are rotatably mounted in the middle of one inner side of the third bracket 1231, and two other second reversing pulleys 1234 are rotatably mounted in the middle of the other inner side of the third bracket 1231. One second drive belt 1235 sequentially passes over a second driving pulley, one second reversing pulley 1234, one second driven pulley 1233, another second driven pulley 1233, and another second reversing pulley 1234 located on one side. Another second drive belt 1235 sequentially passes over a second driving pulley, one second reversing pulley 1234, one second driven pulley 1233, another second driven pulley 1233, and another second reversing pulley 1234 located on the other side. The top surfaces of the two second drive belts 1235 support the full pallet 310. A fourth bracket 1236 is located inside the third bracket 1231. A second lifting plate 1237 is movably positioned between the two second drive belts 1235. The axis of the second linear actuator 1238 is vertically mounted on the fourth bracket 1236, and its output shaft is fixedly connected to the second lifting plate 1237, driving the second lifting plate 1237 to move up and down. Two first insert plates 12391 are movably mounted on the top of opposite sides of the third bracket 1231. Two third linear actuators 12392 are respectively mounted on opposite outer sides of the third bracket 1231, and their output shafts are fixedly connected to the corresponding first insert plates 12391, driving the corresponding first insert plates 12391 to move. The operator places the stacked full pallet stack on top of the third bracket 1231. During the destacking process, the first intercepting bars 12311 at the four corners work together to restrict the movement of each full pallet 310 within its own plane, thereby preventing the full pallet stack from tipping over during destacking.During destacking, the second linear actuator 1238 drives the second lifting plate 1237 upward, supporting the full pallet stack. Then, the two third linear actuators 12392 drive the two first insert plates 12391 to move in opposite directions. Next, the second linear actuator 1238 drives the second lifting plate 1237 downward, moving the entire full pallet stack downward until the top surface of the bottom full pallet 310 is flush with the top surface of the third support 1231. Then, the two third linear actuators 12392 drive the two first insert plates 12391 to move towards each other, supporting the full pallet stack. Finally, the second linear actuator 1238 drives the second lifting plate 1237 to continue downward, causing the bottom full pallet 310 to fall onto the top surface of the two second drive belts 1235. Next, the two second rotary drives 1232 drive the corresponding second drive pulleys to rotate, causing the corresponding second drive belts 1235 to run on the corresponding second reversing pulleys 1234 and second driven pulleys 1233, thereby moving the full pallet 310 toward the first conveying assembly 121. The two second drive belts 1235 cooperate with each other to ensure that the pallet remains horizontal during conveying, preventing the pallet from tilting and thus preventing the sheet-like workpieces from moving and misaligning within the pallet. Each second drive belt 1235 passes around one second drive pulley, two second reversing pulleys 1234, and two second driven pulleys 1233, forming a multi-pulse tensioned closed path, preventing slippage and slackness of the second drive belts 1235, and ensuring the smoothness of the conveying.

[0026] Reference Figure 3 and Figure 9In one embodiment, the first stacking assembly 124 includes a fifth support 1241, two third drive wheels (not shown), two third rotary actuators 1242, four third driven wheels 1243, four third reversing wheels 1244, two third drive belts 1245, a sixth support 1246, a third lifting plate 1247, a fourth linear actuator 1248, two second insert plates 12491, and two fifth linear actuators 12492. Second intercepting rods 12411 are formed at the four corners of the top of the fifth support 1241. The two third drive wheels are rotatably mounted on opposite inner sides of the fifth support 1241. The two third rotary actuators 1242 are mounted on opposite outer sides of the fifth support 1241, and their output shafts are fixedly connected to the two third drive wheels one-to-one, respectively driving the corresponding third drive wheels to rotate. Two third driven pulleys 1243 are rotatably mounted at opposite ends of one inner side of the fifth bracket 1241, and two other third driven pulleys 1243 are rotatably mounted at opposite ends of the other inner side of the fifth bracket 1241. Two third reversing pulleys 1244 are rotatably mounted at the middle of one inner side of the fifth bracket 1241, and two other third reversing pulleys 1244 are rotatably mounted at the middle of the other inner side of the fifth bracket 1241. One third drive belt 1245 sequentially passes over a third driving pulley, a third reversing pulley 1244, a third driven pulley 1243, another third driven pulley 1243, and another third reversing pulley 1244 located on one side. Another third drive belt 1245 sequentially passes over a third driving pulley, a third reversing pulley 1244, a third driven pulley 1243, another third driven pulley 1243, and another third reversing pulley 1244 located on the other side. The top surfaces of the two third drive belts 1245 support empty pallets 320. A sixth bracket 1246 is disposed inside the fifth bracket 1241. A third lifting plate 1247 is movably disposed between the two third drive belts 1245. A fourth linear actuator 1248, with its axis vertically positioned, is mounted on the sixth bracket 1246, and its output shaft is fixedly connected to the third lifting plate 1247, driving the third lifting plate 1247 to move up and down. Two second insert plates 12491 are movably mounted on the top of opposite sides of the fifth bracket 1241. Two fifth linear actuators 12492 are respectively mounted on opposite outer sides of the fifth bracket 1241, with their output shafts fixedly connected to the corresponding second insert plates 12491, driving the corresponding second insert plates 12491 to move. During the stacking process, the second intercepting bars 12411 at the four corners cooperate to restrict the movement of each layer of empty pallets 320 within its own plane, thereby preventing the stack of empty pallets from tipping over. The two third drive belts 1245 are used to receive empty pallets 320 from the first conveying assembly 121.During stacking, two third rotary actuators 1242 drive corresponding third drive wheels to rotate, causing corresponding third drive belts 1245 to operate on corresponding third reversing pulleys 1244 and third driven pulleys 1243, thereby moving the empty pallet 320 directly beneath the empty pallet stack. Then, a fourth linear actuator 1248 drives a third lifting plate 1247 upward to disengage the empty pallet 320 from the top surface of the third drive belt 1245. When the top surface of the empty pallet 320 is aligned with the top of the fifth support 1241, two fifth linear actuators 12492 drive two second insert plates 12491 to move in opposite directions. Afterward, the fourth linear actuator 1248 drives the third lifting plate 1247 to continue moving upward, causing the entire empty pallet stack to move upward. When the bottom of the lowest empty pallet 320 is aligned with the top of the fifth support 1241, the two fifth linear actuators 12492 drive the two second inserts 12491 to move towards each other, using the two second inserts 12491 to support the stack of empty pallets.

[0027] Reference Figure 1 and Figure 10 In one embodiment, the second conveying mechanism 130 includes a second conveying component 131, a second destacking component 132, and a second stacking component 133. The second conveying component 131 is used to convey empty pallets 320. Qualified sheet-like workpieces are transferred from the unloading station 230 to the empty pallets 320 by the unloading mechanism 150. The second destacking component 132 is disposed at one end of the second conveying component 131 and is used to detach empty pallets 320 one by one from the empty pallet stack, and to convey empty pallets 320 one by one to the second conveying component 131. The second stacking component 133 is disposed at the other end of the second conveying component 131 and is used to convey full pallets 310 one by one, and to stack full pallets 310. The second destacking component 132, the second conveying component 131, and the second stacking component 133 cooperate with each other to receive and store a large number of qualified sheet-like workpieces, realizing fully automated pallet flow without manual intervention in the pallet destacking, conveying, and stacking tasks, significantly improving the inspection cycle time.

[0028] It should be noted that the second conveying assembly 131 has the same structure and working principle as the first conveying assembly 121, the second destacking assembly 132 has the same structure and working principle as the first destacking assembly 123, and the second stacking assembly 133 has the same structure and working principle as the first stacking assembly 124, which will not be described again here.

[0029] Reference Figure 11 and Figure 12In one embodiment, the feeding mechanism 140 includes a seventh support 141, a first housing 142, a first swing rod 143, a first slider 144, a first follower block 145, a first slide rail 146, a second slide rail 147, a second slider 148, a first transmission plate 1491, two first transfer seats 1492, multiple first suction nozzles 1493, multiple second suction nozzles 1494, and a fourth rotary driver 1495. The seventh support 141 is mounted above the first conveying mechanism 120. The first housing 142 is mounted on the seventh support 141 and has a first guide groove 1421 formed inside. The first swing rod 143 is swingably disposed in the first housing 142 and has a first guide hole 1431 formed at one end. The first slider 144 is slidably mounted in the first guide groove 1421 and the first guide hole 1431. The first follower block 145 is disposed in the first housing 142 and is rotatably connected to the first slider 144. The first slide rail 146 is vertically arranged, and its top end is fixedly connected to the bottom end of the first follower block 145. The second slide rail 147 is horizontally arranged and fixed to the bottom of the first housing 142. The second slider 148 is slidably connected to the first slide rail 146 and the second slide rail 147 respectively. The middle part of the first transmission plate 1491 is fixedly connected to the bottom end of the first slide rail 146. Two first transfer seats 1492 are fixed to opposite ends of the first transmission plate 1491 respectively. Multiple first suction nozzles 1493 are respectively installed on one of the first transfer seats 1492 for attaching or detaching sheet-like workpieces from the bottom surface of the corresponding first transfer seat 1492. Multiple second suction nozzles 1494 are respectively installed on the other first transfer seat 1492 for attaching or detaching sheet-like workpieces from the bottom surface of the corresponding first transfer seat 1492. It should be noted that each first suction nozzle 1493 and each second suction nozzle 1494 are connected to a negative pressure source, using negative pressure to adhere the sheet-like workpiece to the bottom surface of the first transfer seat 1492. The fourth rotary driver 1495 is mounted on the seventh bracket 141, and its output shaft is fixedly connected to the end of the first swing rod 143 away from the first slider 144. It is used to drive the first swing rod 143 to swing, thereby driving the first slider 144 to slide along the first guide groove 1421. During this process, the first follower block 145 moves left and right and up and down with the first slider block, thereby driving the first slide rail 146 to move left and right and up and down, and in turn driving the first transmission plate 1491, the two first transfer seats 1492, the multiple first suction nozzles 1493 and the multiple second suction nozzles 1494 to move left and right and up and down, so that the sheet-like workpiece located on the first conveying assembly 121 is transferred to the first transfer platform, and the sheet-like workpiece located on the first transfer platform is transferred to the loading station 210. Since the process of transferring the workpiece to the first transfer platform is completed simultaneously with the process of transferring the workpiece to the loading station 210, the loading efficiency is greatly improved.

[0030] It should be noted that the unloading mechanism 150 and the loading mechanism 140 have the same structure and working principle, which will not be described again here.

[0031] Reference Figure 11 and Figure 13In one embodiment, the rejection mechanism 160 includes an eighth support 161, a second housing 162, a second swing rod 163, a third slider 164, a second follower block 165, a third slide rail 166, a fourth slide rail 167, a fourth slider 168, a second transmission plate 1691, a second transfer seat 1692, multiple third suction nozzles 1693, a fifth rotary driver 1694, a first linear module 1695, a support plate 1696, and multiple storage boxes 1697. The eighth support 161 is mounted above the rejection station 240. The second housing 162 is mounted on the eighth support 161 and has a second guide groove 1621 formed inside. The second swing rod 163 is swingably disposed in the second housing 162 and has a second guide hole 1631 formed at one end. The third slider 164 is slidably mounted in the second guide groove 1621 and the second guide hole 1631. The second follower block 165 is disposed inside the second housing 162 and is rotatably connected to the third slider 164. The third slide rail 166 is vertically disposed, and its top end is fixedly connected to the bottom end of the second follower block 165. The fourth slide rail 167 is horizontally disposed and fixed to the bottom inside the second housing 162. The fourth slider 168 is slidably connected to the third slide rail 166 and the fourth slide rail 167 respectively. The middle part of the second transmission plate 1691 is fixedly connected to the bottom end of the third slide rail 166. The second transfer seat 1692 is fixed on the second transmission plate 1691. Multiple third suction nozzles 1693 are respectively installed on the second transfer seat 1692 for attaching or detaching sheet-like workpieces from the bottom surface of the second transfer seat 1692. It should be noted that each third suction nozzle 1693 is connected to a negative pressure source, using negative pressure to attach the sheet-like workpieces to the bottom surface of the second transfer seat 1692. The fifth rotary actuator 1694 is mounted on the eighth bracket 161. Its output shaft is fixedly connected to the end of the second swing rod 163 furthest from the third slider 164, driving the second swing rod 163 to swing, thereby causing the third slider 164 to slide along the second guide groove 1621. During this process, the second follower block 165 moves left and right and up and down with the third slider block, thereby driving the third slide rail 166 to move left and right and up and down, which in turn drives the second transmission plate 1691, the second transfer seat 1692, and multiple third suction nozzles 1693 to move left and right and up and down, thus transferring the defective sheet-like workpiece from the rejection station 240 to the storage box 1697, significantly improving rejection efficiency. The first linear module 1695 is located below the second transfer seat 1692. The bottom end of the support plate 1696 is fixedly connected to the slide of the first linear module 1695. Multiple storage boxes 1697 are fixed to the top of the support plate 1696, and each top has a receiving interface. They all move with the support plate 1696 and are used to store thin sheet-like components with defects.The first linear module 1695 can drive the carrier plate 1696 to move along the axial direction of the first linear module 1695, thereby causing each storage box 1697 to move along the axial direction of the first linear module 1695, so that the position of each storage box 1697 can be changed, thereby storing sheet-like components with different degrees of defects in the corresponding storage box 1697, so as to facilitate the classification and processing of sheet-like components with defects.

[0032] Reference Figure 11 and Figure 14 In one embodiment, the workstation switching mechanism 110 includes a rotary disk 111, multiple carriers 112, a reduction gearbox 113, and a sixth rotary driver 114. The rotary disk 111 is rotatable about its own axis. Multiple carriers 112 are evenly mounted on the top surface of the rotary disk 111 along its circumference and rotate with the rotary disk 111. Each carrier 112 has multiple receiving slots for accommodating sheet-like workpieces. The reduction gearbox 113 is located below the rotary disk 111, and its output end is fixedly connected to the center of the bottom surface of the rotary disk 111. The sixth rotary driver 114 is located below the rotary disk 111, and its output shaft is fixedly connected to the input end of the reduction gearbox 113. The sixth rotary drive 114 can drive the rotary disk 111 to rotate through the reduction gearbox 113, thereby causing each carrier 112 to rotate around the circumference of the rotary disk 111, and thus driving the sheet-like components from the loading station 210 to the inspection station, unloading station 230 and rejection station 240 in sequence.

[0033] Preferably, such as Figure 15 As shown, each carrier 112 includes a substrate 1121, a cover plate 1122, a lower light-transmitting plate 1123, an upper light-transmitting plate 1124, and multiple fourth suction nozzles 1126. The substrate 1121 has a hollow structure. The cover plate 1122 covers the top of the substrate 1121 and forms multiple clearance holes. The lower light-transmitting plate 1123 is installed at the bottom inside the substrate 1121. The upper light-transmitting plate 1124 is installed at the top inside the substrate 1121. The lower light-transmitting plate 1123 and the upper light-transmitting plate 1124 provide optical paths from the bottom and top, respectively, and, in conjunction with the hollow structure of the substrate 1121, enable unobstructed full-field inspection of the workpiece. Multiple suction holes are formed on the upper light-transmitting plate 1124. A negative pressure cavity 1125 is formed between the bottom surface of the upper light-transmitting plate 1124 and the top surface of the lower light-transmitting plate 1123. Multiple fourth suction nozzles 1126 are fixed to one side of the substrate 1121 and are all connected to the negative pressure chamber 1125. The suction force generated by the negative pressure chamber 1125 makes the sheet-like workpiece fit tightly against the top surface of the upper light-transmitting plate 1124, resulting in higher flatness of the sheet-like workpiece and avoiding warping of the sheet-like workpiece due to its own stress, thus significantly improving the accuracy of visual inspection.

[0034] Reference Figure 2 and Figure 16In one embodiment, there are three inspection stations: a first inspection station 221, a second inspection station 222, and a third inspection station 223. There are also three vision inspection mechanisms: a first vision inspection mechanism 171, a second vision inspection mechanism 172, and a third vision inspection mechanism 173. The first vision inspection mechanism 171 is used to inspect whether there are defects on the top surface of the sheet-like workpiece. The second vision inspection mechanism 172 is used to inspect whether there are defects on the bottom surface of the sheet-like workpiece. The third vision inspection mechanism 173 is used to verify the inspection results and for visual positioning.

[0035] Reference Figure 16 and Figure 17In one embodiment, the first visual inspection mechanism 171 includes a ninth support 1711, a second linear module 1712, a first movable base 1713, two first adapter rods 1714, two second adapter rods 1715, two first side light sources 1716, a first camera 1717, and a first backlight 1718. The second linear module 1712 is mounted on the ninth support 1711. The first movable base 1713 is fixedly connected to the slide of the second linear module 1712. Both first adapter rods 1714 are vertically arranged and are mounted on the first movable base 1713, respectively, and can move up and down. Both second adapter rods 1715 are horizontally arranged, with one end fixedly connected to the bottom end of each of the two first adapter rods 1714. The two first side light sources 1716 are inclined and connected to the two second adapter rods 1715, respectively, and can move along the axial direction of the corresponding second adapter rod 1715. Both first side light sources 1716 are located above the first inspection station 221. The first camera 1717, with its axis vertically set and lens facing downwards, is mounted vertically on the first movable base 1713 and located above the two first side light sources 1716, for acquiring images above the first inspection station 221. The first backlight 1718 is located below the first inspection station 221 and can emit light onto the bottom surface of the sheet-like workpiece, creating a transmitted light effect. For transparent / semi-transparent products, it can clearly show internal defects such as cracks and bubbles. For opaque products, it can also highlight the edge features of the product through contour lighting, facilitating the positioning of the first camera 1717. The two first side light sources 1716 illuminate obliquely from above the first inspection station 221, using diffused light to illuminate the three-dimensional features such as depressions, steps, and textures on the side of the product, avoiding the shadow blind spots caused by a single vertical light source. The first backlight 1718, two first sidelights 1716, and the first camera 1717 work together to perform visual inspection of the top surface of a sheet-like workpiece. The height and shooting distance of each light source can be flexibly adjusted according to the size, material, and inspection characteristics of the sheet-like workpiece. The second linear module 1712 drives the first moving base 1713 to move along the axis of the second linear module 1712, thereby moving the first camera 1717 and the two first sidelights 1716 along the axis of the second linear module 1712. This enables segmented scanning inspection and allows for the inspection of sheet-like workpieces in different positions at the same workstation without needing to readjust the product placement, greatly improving inspection flexibility. Simultaneously, the synchronous movement of the first camera 1717 and the two first sidelights 1716 ensures the stability of the relative position between the first camera 1717 and the first sidelights 1716, improving the repeatability and consistency of the inspection results.

[0036] Preferably, each first adapter rod 1714 has a first adjustment hole, which is fixedly connected to the first movable base 1713, allowing the vertical position of the first adapter rod 1714 to be adjusted, thereby allowing the vertical positions of each second adapter rod 1715 and each first side light source 1716 to be adjusted. Each second adapter rod 1715 has a second adjustment hole, which is fixedly connected to the corresponding first side light source 1716, allowing the axial position of each first side light source 1716 on the corresponding second adapter rod 1715 to be adjusted. The first movable base 1713 has a third adjustment hole, which is fixedly connected to the first camera 1717, allowing the vertical position of the first camera 1717 to be adjusted.

[0037] Reference Figure 16 and Figure 18In one embodiment, the second visual inspection mechanism 172 includes a tenth bracket 1721, a support base 1722, a plurality of fifth sliders 1723, a plurality of second cameras 1724, two second side light sources 1725, and a second backlight 1726. The tenth bracket 1721 is disposed below the second inspection station 222. The support base 1722 is movably mounted on the tenth bracket 1721 along its width direction, and a plurality of vertically arranged fifth slide rails 17221 are formed on the side away from the tenth bracket 1721. The plurality of fifth sliders 1723 are slidably connected to the plurality of fifth slide rails 17221 in a one-to-one correspondence. The plurality of fifth sliders 1723 cooperate with the plurality of fifth slide rails 17221, so that the position of the plurality of second cameras 1724 in the vertical direction can be adjusted. Multiple second cameras 1724 are vertically aligned with their lenses pointing upwards, and are fixedly connected to multiple fifth sliders 1723 one-to-one. They are used to acquire images of corresponding sheet-like workpieces below the second inspection station 222. Two second side light sources 1725 are obliquely mounted on the tenth bracket 1721, both located below the second inspection station 222 and above the second cameras 1724. A second backlight 1726 is positioned above the second inspection station 222, emitting light onto the top surface of the sheet-like workpiece to create a transmitted light effect. For transparent / semi-transparent products, this clearly reveals internal defects such as cracks and bubbles. For opaque products, it highlights edge features through contour lighting, facilitating positioning by the second camera 1724. The two second side light sources 1725 illuminate obliquely from below the second inspection station 222, using diffused light to illuminate three-dimensional features such as recesses, steps, and textures on the product's sides, avoiding shadow blind spots caused by a single vertical light source. The second backlight 1726, two second sidelights 1725, and multiple second cameras 1724 work together to visually inspect the bottom surfaces of multiple sheet-like workpieces. The height and shooting distance of each light source can be flexibly adjusted according to the size, material, and inspection characteristics of the sheet-like workpieces.

[0038] Preferably, a fourth adjustment hole is formed on the support base 1722, and it is fixedly connected to the tenth bracket 1721 through the fourth adjustment hole, so that the position of the support base 1722 in the width direction of the tenth bracket 1721 can be adjusted.

[0039] It should be noted that the third vision inspection mechanism 173 has the same structure and working principle as the first vision inspection mechanism 171, and will not be described again here.

[0040] Reference Figure 1 and Figure 2In one embodiment, the sheet-like component inspection device further includes a first transfer mechanism 181 and a second transfer mechanism 182. The first transfer mechanism 181 is disposed between the first conveying mechanism 120 and the station switching mechanism 110, and is used to temporarily store the sheet-like workpiece to be inspected, and to adjust the posture and position of the sheet-like workpiece to be inspected, which facilitates the smooth progress of subsequent visual inspection and ensures the accuracy of the subsequent visual inspection results. The loading mechanism 140 transfers the sheet-like workpiece on the first conveying assembly 121 to the first transfer mechanism 181, and the loading mechanism 140 then transfers the sheet-like workpiece on the first transfer mechanism 181 to the loading station 210. The second transfer mechanism 182 is disposed between the second conveying mechanism 130 and the station switching mechanism 110, and is used to temporarily store qualified sheet-like workpieces. The unloading mechanism 150 transfers the qualified sheet-like workpieces on the unloading station 230 to the second transfer mechanism 182, and the unloading mechanism 150 transfers the sheet-like workpieces on the second transfer mechanism 182 to the second conveying assembly 131.

[0041] Preferably, such as Figure 19As shown, the first transfer mechanism 181 includes an eleventh bracket 1811, two first push rods 1812, a sixth linear actuator 1813, two second push rods 1814, and a seventh linear actuator 1815. The two first push rods 1812 are movably mounted on the top of the eleventh bracket 1811 along its length. The sixth linear actuator 1813 is fixed to one end of the top surface of the eleventh bracket 1811, and its output shaft is fixedly connected to one end of each of the two first push rods 1812, for driving the two first push rods 1812 to move synchronously. The two second push rods 1814 are movably mounted on the top of the eleventh bracket 1811 along its length. The seventh linear actuator 1815 is fixed to the other end of the top surface of the eleventh bracket 1811, and its output shaft is fixedly connected to one end of each of the two second push rods 1814, for driving the two second push rods 1814 to move synchronously. Each first push rod 1812 has a plurality of first push protrusions 18121 uniformly formed circumferentially on its top surface. Each second push rod 1814 has a plurality of second push protrusions 18141 uniformly formed circumferentially on its top surface. A sixth linear actuator 1813 drives two first push rods 1812 toward a seventh linear actuator 1815, and the seventh linear actuator 1815 drives two second push rods 1814 toward the sixth linear actuator 1813. During this process, each first push protrusion 18121 moves with its corresponding first push rod 1812, and each second push protrusion 18141 moves with its corresponding second push rod 1814. Each first push protrusion 18121 and its corresponding second push protrusion 18141 pushes and clamps the corresponding sheet-like workpiece, thereby adjusting the posture and position of the corresponding sheet-like workpiece.

[0042] Preferably, the first linear actuator 1218, the second linear actuator 1238, the third linear actuator 12392, the fourth linear actuator 1248, the fifth linear actuator 12492, the sixth linear actuator 1813, and the seventh linear actuator 1815 can be cylinders, hydraulic cylinders, or electric push rods, etc.

[0043] Preferably, the first rotary driver 1212, the second rotary driver 1232, the third rotary driver 1242, the fourth rotary driver 1495, the fifth rotary driver 1694, the sixth rotary driver 114, the seventh rotary driver 12296 and the eighth rotary driver 12293 can be stepper motors or servo motors.

[0044] Reference Figure 1In one embodiment, the sheet-like component inspection device further includes a frame 190 and a controller. The top of the frame 190 is equipped with a station switching mechanism 110, a first conveying mechanism 120, a second conveying mechanism 130, a loading mechanism 140, a unloading mechanism 150, a rejection mechanism 160, a vision inspection mechanism, a first transfer mechanism 181, and a second transfer mechanism 182. The controller is electrically connected to the station switching mechanism 110, the first conveying mechanism 120, the second conveying mechanism 130, the loading mechanism 140, the unloading mechanism 150, the rejection mechanism 160, the vision inspection mechanism, and the first transfer mechanism 181, respectively, and is used to control their operation.

[0045] The implementation principle of this embodiment is as follows: The station switching mechanism 110 can drive the sheet-like workpiece from the loading station 210 through the inspection station, the unloading station 230, and the rejection station 240 in sequence. By connecting the loading station 210, the inspection station, the unloading station 230, and the rejection station 240 in series using the station switching mechanism 110, the sheet-like workpieces to be inspected can be rapidly transferred between the stations without manual intervention, greatly improving the efficiency of visual inspection. The first conveying mechanism 120 is located on the first side of the station switching mechanism 110 and is used to store and convey a large number of sheet-like workpieces to be inspected, effectively improving the production cycle time. The loading mechanism 140 is used to quickly transfer the sheet-like workpieces on the first conveying mechanism 120 to the loading station 210. The visual inspection mechanism is used to detect whether there are defects in the sheet-like workpieces that arrive at the inspection station. The second conveying mechanism 130 is used to convey and store a large number of qualified sheet-like workpieces. The unloading mechanism 150 is used to quickly transfer qualified sheet-like workpieces from the unloading station 230 to the second conveying mechanism 130. The rejection mechanism 160 is used to quickly remove defective sheet-like workpieces from the rejection station 240. Overall, this significantly improves the efficiency of visual inspection and effectively reduces the missed inspection rate and false judgment rate. In addition, the wraparound layout, compared with the linear layout, has a higher space utilization rate and is conducive to miniaturization design. The movement space of each mechanism is independently divided, avoiding motion interference that could lead to equipment failure.

[0046] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for detecting thin-film components, characterized in that, include: The station switching mechanism (110) can drive the sheet-like workpiece from the loading station (210) through the inspection station, the unloading station (230) and the rejection station (240) in sequence; The first conveying mechanism (120) is disposed on the first side of the workstation switching mechanism (110) and is used to store and convey the sheet-like workpiece to be inspected; The loading mechanism (140) is disposed above the first conveying mechanism (120) and the station switching mechanism (110) and is used to transfer the sheet-like workpiece on the first conveying mechanism (120) to the loading station (210); A visual inspection mechanism is provided on the second side of the workstation switching mechanism (110) for detecting whether the sheet-like workpiece that comes to the inspection station has defects; The second conveying mechanism (130) is located on the third side of the workstation switching mechanism (110) and is used to convey and store qualified sheet-shaped workpieces. The unloading mechanism (150) is disposed above the second conveying mechanism (130) and the station switching mechanism (110) for transferring qualified sheet-like workpieces from the unloading station (230) to the second conveying mechanism (130); A rejection mechanism (160) is provided on the fourth side of the station switching mechanism (110) for removing the defective sheet-like workpiece from the rejection station (240).

2. The sheet-like component testing device according to claim 1, characterized in that, The first conveying mechanism (120) includes: A first conveying assembly (121) is used to convey a full pallet (310); the loading mechanism (140) transfers the sheet-like workpiece on the full pallet (310) to the loading station (210); A peeling assembly (122) is installed on top of the first conveying assembly (121) to separate the sheet-like workpieces one by one from the workpiece stack. The first destacking assembly (123) is disposed at one end of the first conveying assembly (121) and is used to detach the full pallets (310) one by one from the full pallet stack and to convey the full pallets (310) one by one to the first conveying assembly (121). A first stacking assembly (124) is disposed at the other end of the first conveying assembly (121) for conveying empty pallets (320) one by one and for stacking the empty pallets (320).

3. The sheet-like component testing device according to claim 2, characterized in that, The first conveying assembly (121) includes: First support (1211); There are two first drive wheels, which are rotatably mounted on opposite inner sides of the first bracket (1211); There are two first rotary actuators (1212), which are respectively installed on the opposite outer sides of the first bracket (1211). The output shaft is fixedly connected to the two first drive wheels one by one, and is used to drive the corresponding first drive wheels to rotate. There are four first driven wheels (1213); two of the first driven wheels (1213) are rotatably mounted on opposite ends of one inner side of the first bracket (1211), and the other two first driven wheels (1213) are rotatably mounted on opposite ends of the other inner side of the first bracket (1211). There are four first reversing wheels (1214); two of the first reversing wheels (1214) are rotatably mounted on the middle of one inner side of the first bracket (1211), and the other two first reversing wheels (1214) are rotatably mounted on the middle of the other inner side of the first bracket (1211). There are two first drive belts (1215); one of the first drive belts (1215) passes sequentially around the first drive pulley, one of the first reversing pulleys (1214), one of the first driven pulleys (1213), another first driven pulley (1213), and another first reversing pulley (1214) located on one side; the other first drive belt (1215) passes sequentially around the first drive pulley, one of the first reversing pulleys (1214), one of the first driven pulleys (1213), another first driven pulley (1213), and another first reversing pulley (1214) located on the other side; the top surfaces of the two first drive belts (1215) are used to support the full tray (310); The second bracket (1216) is disposed inside the first bracket (1211); The first lifting plate (1217) is movably disposed between the two first transmission belts (1215); The first linear actuator (1218) has its axis set vertically and is mounted on the second bracket (1216). Its output shaft is fixedly connected to the first lifting plate (1217) and is used to drive the first lifting plate (1217) to move up and down. The stripping assembly (122) includes: The floating frame (1221) is mounted on the top of the first bracket (1211) in a way that allows it to float up and down. Multiple peeling rods (1222) are evenly installed on the top of the floating frame (1221) along the length of the floating frame (1221); each peeling rod (1222) has at least one side with multiple peeling teeth (12221); the tooth length of the multiple peeling teeth (12221) gradually increases from bottom to top, and the tooth tip width gradually decreases from bottom to top; The first destacking assembly (123) includes: The third support (1231) has a first intercepting bar (12311) formed at each of the four corners of its top; There are two second drive wheels, which are rotatably mounted on opposite inner sides of the third bracket (1231); There are two second rotary actuators (1232), which are respectively installed on the opposite outer sides of the third bracket (1231). The output shaft is fixedly connected to the two second drive wheels one by one, and is used to drive the corresponding second drive wheels to rotate. There are four second driven wheels (1233); two of the second driven wheels (1233) are rotatably mounted on opposite ends of one inner side of the third bracket (1231), and the other two second driven wheels (1233) are rotatably mounted on opposite ends of the other inner side of the third bracket (1231); There are four second reversing wheels (1234); two of the second reversing wheels (1234) are rotatably mounted on the middle of one inner side of the third bracket (1231), and the other two second reversing wheels (1234) are rotatably mounted on the middle of the other inner side of the third bracket (1231). There are two second drive belts (1235); one of the second drive belts (1235) passes sequentially around the second drive pulley, one of the second reversing pulleys (1234), one of the second driven pulleys (1233), another second driven pulley (1233), and another second reversing pulley (1234) located on one side; the other second drive belt (1235) passes sequentially around the second drive pulley, one of the second reversing pulleys (1234), one of the second driven pulleys (1233), another second driven pulley (1233), and another second reversing pulley (1234) located on the other side; the top surfaces of the two second drive belts (1235) are used to support the full pallet (310); The fourth support (1236) is disposed inside the third support (1231); The second lifting plate (1237) is movably disposed between the two second transmission belts (1235); The second linear actuator (1238) has its axis set vertically and is mounted on the fourth bracket (1236). Its output shaft is fixedly connected to the second lifting plate (1237) and is used to drive the second lifting plate (1237) to move up and down. The first insert plate (12391) consists of two plates, which are movable in opposite directions on the top of opposite sides of the third bracket (1231); There are two third linear actuators (12392), which are respectively installed on the opposite outer sides of the third bracket (1231). The output shaft is fixedly connected to the two first insert plates (12391) in a one-to-one correspondence, and is used to drive the corresponding first insert plates (12391) to move. The first stacking assembly (124) includes: The fifth support (1241) has a second intercepting rod (12411) formed at each of the four corners of its top; There are two third drive wheels, which are rotatably mounted on opposite inner sides of the fifth bracket (1241); There are two third rotary actuators (1242), which are respectively installed on the opposite outer sides of the fifth bracket (1241). The output shaft is fixedly connected to the two third drive wheels one by one, and is used to drive the corresponding third drive wheels to rotate. There are four third driven wheels (1243); two of the third driven wheels (1243) are rotatably mounted on opposite ends of one inner side of the fifth bracket (1241), and the other two third driven wheels (1243) are rotatably mounted on opposite ends of the other inner side of the fifth bracket (1241); There are four third reversing wheels (1244); two of the third reversing wheels (1244) are rotatably mounted on the middle of one inner side of the fifth bracket (1241), and the other two third reversing wheels (1244) are rotatably mounted on the middle of the other inner side of the fifth bracket (1241). There are two third drive belts (1245); one of the third drive belts (1245) passes sequentially around the third drive pulley, one of the third reversing pulleys (1244), one of the third driven pulleys (1243), another third driven pulley (1243), and another third reversing pulley (1244) located on one side; the other third drive belt (1245) passes sequentially around the third drive pulley, one of the third reversing pulleys (1244), one of the third driven pulleys (1243), another third driven pulley (1243), and another third reversing pulley (1244) located on the other side; the top surfaces of the two third drive belts (1245) are used to support the empty tray (320); The sixth bracket (1246) is disposed inside the fifth bracket (1241); The third lifting plate (1247) is movably disposed between the two third transmission belts (1245); The fourth linear actuator (1248) has its axis set vertically and is mounted on the sixth bracket (1246). Its output shaft is fixedly connected to the third lifting plate (1247) and is used to drive the third lifting plate (1247) to move up and down. The second insert plate (12491) consists of two plates, which are movable in opposite directions on the top of opposite sides of the fifth bracket (1241); The fifth linear actuator (12492) consists of two units, which are respectively installed on the opposite outer sides of the fifth bracket (1241). The output shaft is fixedly connected to the two second insert plates (12491) in a one-to-one correspondence, and is used to drive the corresponding second insert plates (12491) to move.

4. The sheet-like element detection device according to claim 2, characterized in that, The second conveying mechanism (130) includes: The second conveying assembly (131) is used to convey the empty pallet (320); the unloading mechanism (150) transfers the qualified sheet-like workpiece from the unloading station (230) to the empty pallet (320); The second destacking assembly (132) is disposed at one end of the second conveying assembly (131) and is used to remove the empty pallets (320) one by one from the empty pallet stack and to convey the empty pallets (320) one by one to the second conveying assembly (131). The second stacking assembly (133) is disposed at the other end of the second conveying assembly (131) for conveying the full pallets (310) one by one and is capable of stacking the full pallets (310).

5. The sheet-like element detection device according to any one of claims 1 to 4, characterized in that, The feeding mechanism (140) includes: The seventh support (141) is mounted above the first conveying mechanism (120); The first housing (142) is mounted on the seventh bracket (141) and has a first guide groove (1421) formed inside; The first swing rod (143) is swingably disposed in the first housing (142), and a first guide hole (1431) is formed at one end; The first slider (144) is slidably installed in the first guide groove (1421) and the first guide hole (1431); The first follower block (145) is disposed inside the first housing (142) and is rotatably connected to the first slider (144); The first slide rail (146) is vertically arranged, and its top end is fixedly connected to the bottom end of the first follower block (145); The second slide rail (147) is horizontally set and fixed to the bottom inside the first housing (142); The second slider (148) is slidably connected to the first slide rail (146) and the second slide rail (147) respectively; The middle part of the first transmission plate (1491) is fixedly connected to the bottom end of the first slide rail (146); There are two first transfer seats (1492), which are respectively fixed to the opposite ends of the first transmission plate (1491); There are multiple first suction nozzles (1493), each installed on one of the first transfer seats (1492), for attaching or detaching the sheet-like workpiece from the bottom surface of the corresponding first transfer seat (1492); There are multiple second suction nozzles (1494), each mounted on another first transfer seat (1492), for attaching or detaching the sheet-like workpiece from the bottom surface of the corresponding first transfer seat (1492); The fourth rotary driver (1495) is mounted on the seventh bracket (141), and its output shaft is fixedly connected to the end of the first swing rod (143) away from the first slider (144), for driving the first swing rod (143) to swing. The structure of the unloading mechanism (150) is the same as that of the loading mechanism (140).

6. The sheet-like element detection device according to any one of claims 1 to 4, characterized in that, The rejection mechanism (160) includes: The eighth support (161) is mounted above the rejection station (240); The second housing (162) is mounted on the eighth bracket (161) and has a second guide groove (1621) formed inside; The second swing rod (163) is swingably disposed in the second housing (162), and a second guide hole (1631) is formed at one end; The third slider (164) is slidably installed in the second guide groove (1621) and the second guide hole (1631); The second follower block (165) is disposed inside the second housing (162) and is rotatably connected to the third slider (164); The third slide rail (166) is vertically set and its top end is fixedly connected to the bottom end of the second follower block (165); The fourth slide rail (167) is horizontally set and fixed to the bottom inside the second housing (162); The fourth slider (168) is slidably connected to the third slide rail (166) and the fourth slide rail (167), respectively; The middle part of the second transmission plate (1691) is fixedly connected to the bottom end of the third slide rail (166); The second transfer seat (1692) is fixed on the second transmission plate (1691); There are multiple third suction nozzles (1693), which are respectively installed on the second transfer seat (1692) to make the sheet-like workpiece adhere to or detach from the bottom surface of the second transfer seat (1692); The fifth rotary actuator (1694) is mounted on the eighth bracket (161), and its output shaft is fixedly connected to the end of the second swing rod (163) away from the third slider (164) for driving the second swing rod (163) to swing. The first linear module (1695) is disposed below the second transfer seat (1692); The bottom end of the support plate (1696) is fixedly connected to the slide of the first linear module (1695); Multiple storage boxes (1697) are fixed to the top of the support plate (1696), and each has a receiving interface at its top. They all move with the support plate (1696) and are used to store the sheet-like components with defects.

7. The sheet-like element detection device according to any one of claims 1 to 4, characterized in that, The workstation switching mechanism (110) includes: The rotating disk (111) is capable of rotating around its own axis; Multiple carriers (112) are uniformly mounted on the top surface of the rotating disk (111) along the circumference of the rotating disk (111) and rotate with the rotating disk (111); each carrier (112) has multiple receiving slots for accommodating the sheet-like workpiece. A reduction gearbox (113) is located below the rotating disk (111), and its output end is fixedly connected to the middle of the bottom surface of the rotating disk (111). The sixth rotary driver (114) is located below the rotary disk (111), and its output shaft is fixedly connected to the input end of the gearbox (113).

8. The sheet-like element detection device according to any one of claims 1 to 4, characterized in that, The testing station consists of three stations, namely the first testing station (221), the second testing station (222), and the third testing station (223). The visual detection mechanism consists of three parts, namely the first visual detection mechanism (171), the second visual detection mechanism (172), and the third visual detection mechanism (173); The first visual inspection mechanism (171) includes: Ninth support (1711); The second linear module (1712) is mounted on the ninth bracket (1711); The first movable seat (1713) is fixedly connected to the slide of the second linear module (1712); There are two first adapter rods (1714), both of which are vertically set and can be moved up and down on the first movable base (1713); There are two second adapter rods (1715), both horizontally arranged, with one end fixedly connected to the bottom end of each of the two first adapter rods (1714). There are two first side light sources (1716), which are respectively inclined and connected to the two second adapter rods (1715) in a one-to-one correspondence, and can move along the axial direction of the corresponding second adapter rod (1715); the two first side light sources (1716) are both located above the first detection station (221); The first camera (1717) is vertically mounted on the first movable base (1713) with its lens facing downwards and can be moved up and down, and is located above the two first side light sources (1716). The first backlight (1718) is located below the first detection station (221); The second visual inspection mechanism (172) includes: The tenth support (1721) is located below the second inspection station (222); The support base (1722) is movably mounted on the tenth bracket (1721) along the width direction of the tenth bracket (1721), and a plurality of fifth slide rails (17221) are formed on the side away from the tenth bracket (1721), all of which are vertically arranged. There are multiple fifth sliders (1723), which are slidably connected to multiple fifth slide rails (17221) in a one-to-one correspondence; There are multiple second cameras (1724), all with vertical axes and upward-facing lenses, which are fixedly connected to the multiple fifth sliders (1723) in a one-to-one correspondence; There are two second side light sources (1725), which are respectively installed at an angle on the tenth bracket (1721), both located below the second detection station (222) and above the second camera (1724); The second backlight (1726) is located above the second detection station (222); The structure of the third visual inspection mechanism (173) is the same as that of the first visual inspection mechanism (171).

9. The sheet-like element detection device according to any one of claims 1 to 4, characterized in that, Also includes: The first transfer mechanism (181) is disposed between the first conveying mechanism (120) and the workstation switching mechanism (110) for temporarily storing the sheet-like workpiece to be inspected and for adjusting the posture and position of the sheet-like workpiece to be inspected. The second transfer mechanism (182) is located between the second conveying mechanism (130) and the workstation switching mechanism (110) for temporarily storing qualified sheet-like workpieces.

10. The sheet-like element detection device according to claim 9, characterized in that, Also includes: The frame (190) is equipped with the workstation switching mechanism (110), the first conveying mechanism (120), the second conveying mechanism (130), the loading mechanism (140), the unloading mechanism (150), the rejection mechanism (160), the visual inspection mechanism, the first transfer mechanism (181), and the second transfer mechanism (182) on the top.

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