Automatic resistance detection ART machine suitable for OLED flexible display

Abstract

The invention relates to the technical field of resistance detection ART machines, in particular to an automatic resistance detection ART machine suitable for an OLED flexible displayer, a product conveying assembly comprises a plurality of sets of product adsorption frames and a carrying mechanism, the carrying mechanism comprises a bearing frame and an air cylinder, and the bearing frame comprises a feeding part at the bottom and a discharging part at the top; the detection part is arranged between the feeding part and the discharging part; the detection part can be used for separating the stacked product adsorption frames; the ART detection assembly is installed on the back face of the detection part and comprises a frame body and an ART tester, alignment lens devices are installed at the top and the bottom of the frame body, a test probe device is further installed at the top of the frame body, and the alignment lens devices and the test probe device are in signal connection with the ART tester; the frame body is installed on the bearing frame through the adjusting assembly, and the frame body can enter and exit from the detection part in the width direction of the bearing frame under driving of the adjusting assembly. According to the ART machine, manual operation is replaced, and the product detection operation time is shortened.

Description

Technical Field

[0001] This application relates to the field of resistance detection ART machine technology, and in particular to an automatic resistance detection ART machine suitable for OLED flexible displays. Background Technology

[0002] After the IC chip and FPC are bonded together, the resistance between the IC chip and PFC inside the flexible OLED product needs to be tested. The product's qualification is determined by analyzing the resistance value. Based on the test results, the products are classified. Qualified products flow into downstream equipment, while defective products are discharged through CONV.

[0003] Traditionally, the positioning of flexible OLED products after IC chip and FPC bonding is corrected through mechanical positioning. This method is prone to causing breakage and damage to the chip and FPC. Mechanical positioning also requires manual operation, which is not only inefficient but also prone to misjudgment, impacting downstream production. Furthermore, its long operation time significantly affects the efficiency of the entire production line, leading to high production costs and hindering scalability and small-scale production. Summary of the Invention

[0004] In order to overcome the problems existing in the prior art, this application provides an automatic resistance detection ART machine suitable for OLED flexible displays.

[0005] The automatic resistance detection ART machine for OLED flexible displays provided in this application adopts the following technical solution: An automatic resistance testing (ART) machine suitable for OLED flexible displays includes: a product transfer assembly, comprising a product suction rack and a conveying mechanism for driving the product suction rack to move, wherein the product suction rack is provided in several groups, and the conveying mechanism can drive the product suction rack to reciprocate between the inlet and outlet sections of a carrier frame, the conveying mechanism including a carrier frame and a cylinder located at the bottom of the carrier frame, and the carrier frame including an inlet section at the bottom, an outlet section at the top, and a detection section located between the inlet and outlet sections; the detection section can separate the stacked product suction racks; an ART detection assembly, the ART detection assembly being installed on the back of the detection section, including a frame and an ART tester mounted on the frame, the top and bottom of the frame being equipped with alignment lens devices facing the top and bottom surfaces of the product, the top of the frame also being equipped with a test probe device capable of contacting the product, and the alignment lens device and the test probe device being signal connected to the ART tester; the frame being mounted on the carrier frame via an adjustment assembly, and the frame being able to move in and out of the detection section along the width direction of the carrier frame under the drive of the adjustment assembly.

[0006] Furthermore, the product adsorption rack includes an adsorption platform and support platforms on both sides of the adsorption platform. The adsorption platform has locking blocks on both sides that fit into the slots on the top of the support platforms. The adsorption platform engages with the slots on the top of the support platforms via these locking blocks. Two sets of connecting rods are hinged along the height direction of the support platform on the side of the support platform away from the adsorption platform. The ends of these connecting rods are hinged to the support platforms of the product adsorption rack above and below the support platform, respectively. The hinge points of the connecting rods between adjacent sets of support platforms are located within the support frames of the two side conveying mechanisms. The support frame includes a first frame located on both sides of the product adsorption rack and a second frame located on both sides of the ART detection assembly. Two sets of moving slots are distributed along the height direction of the first frame on their opposite surfaces. Through holes are distributed along the length direction of the moving slots on their inner surfaces, and these through holes are slidably connected to the limiting shafts at the hinge points of the connecting rods between adjacent support platforms. The bottom surface of the moving trough of the detection unit is higher than the bottom surface of the moving troughs located in the feeding section and the discharging section respectively, and a transition slope is provided between the ends of the moving trough located in the detection unit and the moving troughs located in the feeding section and the discharging section.

[0007] Furthermore, the adsorption platform is a ring-shaped frame, and an annular placement platform is provided on the inner top edge of the adsorption platform. Vacuum adsorption holes are evenly distributed on the top surface of the annular placement platform. The vacuum adsorption holes are connected to the connecting terminals on the side of the adsorption platform. The connecting terminals are detachably and sealed to the vacuum mechanism installed on the front of the support frame. The vacuum mechanism is installed on the front of the detection section of the support frame. The connecting terminals are located on the front of the adsorption platform and include a connecting tube and a movable sleeve fitted on the connecting tube. The inner side wall of the movable sleeve has a guide protrusion along its length, and the outer side wall of the connecting tube has a guide groove that matches the guide protrusion. A positioning ring is integrally formed on the connecting tube. The inner side wall of the movable sleeve and the positioning ring are elastically connected by a first spring. The free end of the connecting tube is sealed, and a vent hole is opened on the side of the connecting tube. A vent hole that matches the vent hole is opened on the side of the movable sleeve. When the first spring is in its natural state, the movable sleeve is in a sealed state to the vent hole, and the inner side wall of the movable sleeve blocks the vent hole on the connecting tube. The vacuum mechanism includes a mounting bracket. The inner side of the mounting bracket has connecting grooves adapted to the connecting terminals. These connecting grooves are distributed along the height of the mounting bracket. The bottom of each connecting groove has a positioning groove adapted to the free end of the movable sleeve. An arc-shaped transition is provided between the connecting groove and the top and bottom surfaces of the mounting bracket. Air guide blocks adapted to the sides of the movable sleeve are provided on both sides of the connecting groove. The opposite surfaces of the air guide blocks have arc-shaped grooves adapted to the outer surface of the movable sleeve, and the upper and lower sides of the arc-shaped grooves have arc-shaped transitions. The air guide blocks extend along the connecting groove... The air guide block is slidably installed in the air guide groove in the width direction, and the end of the air guide block away from the connecting groove is elastically connected to the bottom of the air guide groove through a second spring. When the connecting terminal enters the connecting groove and the moving sleeve is compressed by the first spring and cooperates with the positioning groove, the air guide hole that passes through along the sliding direction of the air guide block is connected to the air guide hole on the moving sleeve and the air vent on the connecting pipe. The two ends of the air guide hole on the moving sleeve are aligned and connected with the air guide hole and the air vent respectively. The other end of the air guide hole is connected to the vacuum pump through the connecting hose that passes through the mounting bracket.

[0008] Furthermore, the frame in the ART testing component adopts a U-shaped frame, with the opening of the U-shaped frame facing the product transfer component. The frame is slidably installed in the slide groove of the second frame via a slider and can slide along the length of the second frame. A rotation detection unit is rotatably installed inside the frame, and the frame can enter the upper and lower sides of the testing section's placement table. An alignment lens device is installed on the inner side of the frame relative to the center of the rotation detection unit on the surface, and a test probe device is also provided at the eccentric position of the rotation detection unit on the inner top surface. The top and bottom of the rotation detection unit are connected by a synchronous gear set to achieve synchronous rotation. A servo motor that drives the rotation detection unit to rotate is also installed at the end of the frame away from the product transfer component, and the output shaft of the servo motor is connected to the rotating shaft of the rotation detection section. The alignment lens device and test probe device are signal-connected to the ART tester, which is located at the end of the U-shaped frame furthest from the product transmission component. The rotation detection unit is signal-connected to the adjustment component. The adjustment component includes sliders fixedly installed on both sides of the U-shaped frame furthest from the opening. The sliders are slidably installed in grooves within the second frame. An adjustment component for driving the sliders is installed within the second frame. Several guide rods connect the sliders on both sides of the U-shaped frame, passing through and slidably connecting to the U-shaped frame. An adjustment component is located between the sliders and the U-shaped frame to drive the U-shaped frame to move along the guide rods. The adjustment component includes an adjustment screw and a servo motor for driving the adjustment screw. One set of adjustment screws passes through the sliders within the second frame, driving the sliders to slide along the grooves of the second frame. Another set of adjustment screws passes through the U-shaped frame between the guide rods, driving the U-shaped frame to move along the guide rods. The servo motor is installed at the end of the second frame, and its output shaft is connected to the adjustment screw via a coupling.

[0009] In summary, this application includes at least one of the following beneficial technical effects: 1. This application achieves contactless positioning and transfer of flexible OLED products by using a vacuum adsorption type product adsorption rack of the product transfer component in conjunction with a cylinder-driven handling mechanism, replacing the traditional mechanical positioning method and effectively avoiding breakage damage to IC chips and FPCs caused by mechanical contact. 2. The spacing design of the stacked product adsorption rack in the testing department of this application, combined with the visual alignment of the upper and lower dual alignment lens device in the ART testing component and the high-precision displacement adjustment driven by the servo motor and adjusting screw, greatly improves the alignment accuracy of resistance testing. With the automated signal transmission and detection analysis of the ART tester and test probe device, it completely replaces manual operation, not only eliminating the impact of manual analysis misjudgment on downstream production, but also significantly shortening the single product testing operation time. 3. The reciprocating cycle transmission design of multiple product adsorption racks in this application, combined with the smooth connection between the detection department and the feeding and discharging departments, greatly improves the detection efficiency of the entire production line and reduces production costs. At the same time, the automated and high-precision detection mode also provides reliable support for the large-scale production of flexible OLED products. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of an automatic resistance detection ART machine suitable for OLED flexible displays; Figure 2 This is a schematic diagram of the connection mechanism between the connection terminals and the vacuum mechanism in an automatic resistance detection ART machine suitable for OLED flexible displays. Figure 3 This is an exploded view of the connection structure between the connection terminals and the vacuum mechanism in an automatic resistance detection ART machine suitable for OLED flexible displays; Figure 4 This is an exploded view of the adsorption stage and support stage in an automatic resistance testing ART machine suitable for OLED flexible displays; Figure 5 This is a schematic diagram of the ART detection component in an automatic resistance detection ART machine suitable for OLED flexible displays.

[0011] Explanation of reference numerals in the attached drawings: 1. Product transfer assembly; 11. Product adsorption rack; 111. Adsorption platform; 1111. Locking block; 1112. Annular placement platform; 1113. Vacuum adsorption hole; 112. Support platform; 1121. Slot; 113. Connecting rod; 1131. Limiting shaft; 114. Connecting terminal; 1141. Connecting pipe; 11411. Guide groove; 11412. Positioning ring; 11413. Vent hole; 1142. Moving sleeve; 11421. Guide protrusion; 11422. Air vent; 1143. First spring; 12. Transport mechanism; 121. Support frame; 1211. Feeding section; 1212. Discharging section; 1213. Detection section; 122. 1. Cylinder; 123. First frame; 1231. Moving groove; 1232. Through hole; 124. Second frame; 1241. Slide groove; 125. Vacuum mechanism; 1251. Mounting bracket; 1252. Connecting groove; 1253. Air guide groove; 1254. Air guide block; 12541. Air guide through hole; 1255. Second spring; 1256. Connecting hose; 1257. Vacuum pump; 2. ART detection assembly; 21. Frame; 211. Rotation detection unit; 212. Synchronous gear set; 213. Guide rod; 22. ART tester; 23. Alignment lens device; 24. Test probe device; 25. Adjustment assembly; 251. Slider; 252. Adjusting screw. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0013] This application discloses an automatic resistance detection (ART) machine suitable for OLED flexible displays.

[0014] Reference Figures 1 to 5An automatic resistance testing (ART) machine suitable for OLED flexible displays includes: a product transfer assembly 1, which includes a product suction frame 11 and a conveying mechanism 12 for driving the product suction frame 11 to move. The product suction frame 11 is provided in several groups. The conveying mechanism 12 can drive the product suction frame 11 to reciprocate between the inlet section 1211 and the outlet section 1212 of a support frame 121. The conveying mechanism 12 includes the support frame 121 and a cylinder 122 located at the bottom of the support frame 121. The support frame 121 includes an inlet section 1211 at the bottom, an outlet section 1212 at the top, and a detection section 1213 located between the inlet section 1211 and the outlet section 1212. 213 can separate the stacked product adsorption racks 11; ART detection assembly 2, which is installed on the back of the detection section 1213, includes a frame 21 and an ART tester 22 installed on the frame 21. Alignment lens devices 23 facing the top and bottom of the product are installed on the top and bottom of the frame 21. A test probe device 24 that can contact the product is also installed on the top of the frame 21. The alignment lens device 23 and the test probe device 24 are signal connected to the ART tester 22. The frame 21 is installed on the support frame 121 by an adjustment assembly 25. The frame 21 can move in and out of the detection section 1213 along the width direction of the support frame 121 under the drive of the adjustment assembly 25. During the overall operation of the ART machine, the flexible OLED product to be tested is first placed on the product adsorption rack 11 of the product transfer component 1's infeed section 1211. The cylinder 122 at the bottom of the support frame 121 serves as the driving component of the conveying mechanism 12, driving multiple sets of product adsorption racks 11 to reciprocate along the support frame 121 between the infeed section 1211, the detection section 1213, and the discharge section 1212. When the product adsorption rack 11 moves to the detection section 1213, the detection section 1213 separates the originally stacked product adsorption racks 11. Then, the ART detection component 2 installed on the back of the detection section 1213 is activated, and the adjustment component 25 drives the ART detection component 2. The frame 21 enters the inspection section 1213 along the width direction of the support frame 121. The upper and lower alignment lens device 23 on the frame 21 aligns the product and transmits the signal to the ART tester 22. After the alignment is completed, the test probe device 24 contacts the product and detects the resistance value between the IC chip and the FPC. The ART tester 22 analyzes the test data to determine whether the product is qualified or not. After the test is completed, the frame 21 exits the inspection section 1213 under the drive of the adjustment component 25. The product adsorption rack 11 continues to move to the discharge section 1212. Qualified products flow downstream, and defective products are discharged through CONV. The empty product adsorption rack 11 returns to the feeding section 1211 for recycling.

[0015] Reference Figures 1 to 5The product adsorption rack 11 includes an adsorption platform 111 and support platforms 112 on both sides of the adsorption platform 111. The adsorption platform 111 has locking blocks 1111 on both sides that are adapted to the locking slots 1121 on the top of the support platform 112. The adsorption platform 111 is engaged with the locking blocks 1111 on both sides of the support platform 112 through the locking slots 1121 on the top of the support platform 112. Two sets of connecting rods 113 are hinged along the height direction of the support platform 112 on the side of the support platform 112 away from the adsorption platform 111. The ends of the connecting rods 113 away from the support platform 112 are respectively hinged to the support platforms 112 of the product adsorption rack 11 above and below the support platform 112. The hinge points of the connecting rods 113 between two adjacent sets of support platforms 112 are located in the support frames 121 of the two side conveying mechanisms 12. The support frame 121 includes a first frame 123 located on both sides of the product adsorption frame 11 and a second frame 124 located on both sides of the ART detection assembly 2. Two sets of moving slots 1231, distributed along the height direction of the first frame 123, are formed on the opposite surfaces of the first frame 123. Through holes 1232, distributed along the length direction of the moving slot 1231, are formed on the inner side of the moving slot 1231, and the through holes 1232 are slidably connected to the limiting shaft 1131 at the hinge point of the connecting rod 113 between two adjacent support platforms 112. The bottom surface of the moving slot 1231 of the detection section 1213 is higher than the bottom surface of the moving slots 1231 located in the infeed section 1211 and the discharge section 1212, respectively. A transition slope is provided between the ends of the moving slot 1231 in the detection section 1213 and the moving slots 1231 located in the infeed section 1211 and the discharge section 1212. The product adsorption rack 11 is assembled by engaging the locking blocks 1111 on both sides of the adsorption platform 111 with the locking groove 1121 on the top of the support platform 112. Multiple sets of product adsorption racks 11 are interconnected by two sets of connecting rods 113 hinged to the outside of the support platform 112. The ends of the connecting rods 113 are respectively hinged to the support platforms 112 of the adjacent product adsorption racks 111, and the limiting shaft 1131 at the hinge of the connecting rods 113 between adjacent support platforms 112 is embedded in the through hole 1232 of the moving groove 1231 of the first frame 123. When the cylinder 122 at the bottom of the support platform 121 drives the product adsorption rack 11 to move, the limiting shaft 1131 moves along the moving groove 1231. The sliding mechanism guides the product adsorption rack 11 to move along the height direction of the first frame 123. When the product adsorption rack 11 enters the moving groove 1231 of the detection section 1213 from the moving groove 1231 of the feeding section 1211 or the discharging section 1212 via the transition slope, the originally stacked product adsorption racks 11 are naturally separated by the hinge transmission of the connecting rod 113 because the bottom surface of the moving groove 1231 of the detection section 1213 is higher. This provides an independent working space for subsequent detection. After the detection is completed, the product adsorption rack 11 returns to the moving groove 1231 of the feeding section 1211 or the discharging section 1212 via the transition slope, realizing orderly lifting and circulating transmission.

[0016] Reference Figures 1 to 5The adsorption platform 111 is an annular frame 21, and an annular placement platform 1112 is provided on the inner top edge of the adsorption platform 111. Vacuum adsorption holes 1113 are evenly distributed on the top surface of the annular placement platform 1112. The vacuum adsorption holes 1113 are connected to the connection terminal 114 on the side of the adsorption platform 111. The connection terminal 114 is detachably and sealedly connected to the vacuum mechanism 125 installed on the front of the support frame 121. The vacuum mechanism 125 is installed on the front of the detection part 1213 of the support frame 121. The connecting terminal 114 is located on the front of the adsorption stage 111, and includes a connecting tube 1141 and a movable sleeve 1142 fitted on the connecting tube 1141. The inner wall of the movable sleeve 1142 has a guide protrusion 11421 along its length, and the outer wall of the connecting tube 1141 has a guide groove 11411 that matches the guide protrusion 11421. A positioning ring 11412 is integrally formed on the connecting tube 1141, wherein the inner wall of the movable sleeve 1142 and the positioning ring 11412 are aligned. The 12 are elastically connected by a first spring 1143. The free end of the connecting pipe 1141 is sealed and a vent hole 11413 is provided on the side of the connecting pipe 1141. A vent hole 11422 adapted to the vent hole 11413 is provided on the side of the movable sleeve 1142. When the first spring 1143 is in its natural state, the movable sleeve 1142 is in a sealed state to the vent hole 11413. The inner wall of the movable sleeve 1142 blocks the vent hole 11413 on the connecting pipe 1141. The vacuum mechanism 125 includes a mounting bracket 1251. A connecting groove 1252, adapted to the connecting terminal 114, is formed on the inner side of the mounting bracket 1251. The connecting groove 1252 is distributed along the height direction of the mounting bracket 1251. A positioning groove adapted to the free end of the movable sleeve 1142 is formed at the bottom of the connecting groove 1252. An arc-shaped transition is provided between the connecting groove 1252 and the top and bottom surfaces of the mounting bracket 1251. Air guide blocks 1254, adapted to the sides of the movable sleeve 1142, are formed on both sides of the connecting groove 1252. An arc-shaped groove adapted to the outer surface of the movable sleeve 1142 is formed on the opposite surface of the air guide block 1254. An arc-shaped transition is provided on the upper and lower sides of the arc-shaped groove. The air guide block 1254 is slidably mounted on the air guide groove 1252 along the width direction of the connecting groove 1252. Within 53, the end of the air guide block 1254 away from the connecting groove 1252 is elastically connected to the bottom of the air guide groove 1253 through the second spring 1255. When the connecting terminal 114 enters the connecting groove 1252 and the moving sleeve 1142 is compressed by the first spring 1143 and cooperates with the positioning groove, the air guide hole 12541 that passes through along the sliding direction of the air guide block 1254 communicates with the air guide hole 11422 on the moving sleeve 1142 and the ventilation hole 11413 on the connecting pipe 1141. The two ends of the air guide hole 11422 on the moving sleeve 1142 are aligned and communicated with the air guide hole 12541 and the ventilation hole 11413 respectively. The other end of the air guide hole 12541 is connected to the vacuum pump 1257 through the connecting hose 1256 that passes through the mounting bracket 1251.The flexible OLED product is placed on the annular placement platform 1112 inside the adsorption platform 111. When the product adsorption frame 11 moves to the detection section 1213, the connection terminal 114 on the front of the adsorption platform 111 is embedded into the connection groove 1252 of the mounting bracket 1251 of the vacuum mechanism 125 on the front of the detection section 1213. The free end of the moving sleeve 1142 contacts the positioning groove at the bottom of the connection groove 1252 and is pressed, compressing the first spring 1143 along the guide groove 11411 of the connecting tube 1141. At this time, the air guide hole 11422 on the moving sleeve 1142 is aligned with the air vent 11413 of the connecting tube 1141. At the same time, the air guide blocks 1254 on both sides of the connection groove 1252 are under the action of the second spring 1255. The air guide hole 12541 of the air guide block 1254 is connected to the air guide hole 11422 of the moving sleeve 1142 and the air vent hole 11413 of the connecting pipe 1141. The vacuum pump 1257 supplies air to the vacuum adsorption hole 1113 through the connecting hose 1256, air guide hole 12541, air guide hole 11422, and air vent hole 11413, so that the placement platform fixes the product by vacuum adsorption force, achieving non-contact positioning. After the test is completed, the product adsorption rack 11 leaves the test section 1213, the connecting terminal 114 disengages from the connecting groove 1252, the first spring 1143 resets and pushes the moving sleeve 1142 to block the air vent hole 11413, the vacuum adsorption stops, and the product can be taken out or diverted.

[0017] Reference Figures 1 to 5The frame 21 in the ART detection component 2 adopts a U-shaped frame, with the opening of the U-shaped frame facing the product transfer component 1. The frame 21 is slidably installed in the slide groove 1241 of the second frame 124 via a slider 251 and can slide along the length of the second frame 124. A rotation detection unit 211 is rotatably installed inside the frame 21, and the frame 21 can enter the upper and lower sides of the placement platform in the detection section 1213. An alignment lens device 23 is installed on the inner side of the frame 21 relative to the center of the rotation detection unit 211 on the surface. A test probe device 24 is also provided at the eccentric position of the rotation detection unit 211 on the inner top surface. The top and bottom of the rotation detection unit 211 are connected by a synchronous gear set 212 to achieve synchronous rotation. A servo motor that drives the rotation detection unit 211 to rotate is also installed at the end of the frame 21 away from the product transfer component 1. The output shaft of the servo motor is connected to the rotating shaft of the rotation detection section 1213. The alignment lens device 23 and the test probe device 24 are signal-connected to the ART tester 22, which is located at the end of the U-shaped frame away from the product transmission component 1, and the rotation detection unit 211 is signal-connected to the adjustment component 25. The adjustment component 25 includes sliders 251 fixedly installed on both sides of the U-shaped frame away from the opening end. The sliders 251 are slidably installed in the slide groove 1241 of the second frame 124, and the adjustment component 25 for driving the sliders 251 to move is installed in the second frame 124. Several guide rods 213 are connected between the sliders 251 on both sides of the U-shaped frame. The guide rods 213 pass through the U-shaped frame and are slidably connected to the U-shaped frame. The adjustment component 25 is provided between the sliders 251 and the U-shaped frame to drive the U-shaped frame to move along the guide rods 213. The adjustment assembly 25 includes an adjustment screw 252 and a servo motor for driving the adjustment screw 252 to rotate. One set of adjustment screws 252 passes through a slider 251 inside the second frame 124 and is used to drive the slider 251 to slide along the slide groove 1241 of the second frame 124. Another set of adjustment screws 252 passes through a U-shaped frame between guide rods 213 and is used to drive the U-shaped frame to move along the guide rods 213. The servo motor is installed at the end of the second frame 124, and its output shaft is connected to the adjustment screw 252 through a coupling. When the ART detection component 2 is in operation, the servo motor at the end of the second frame 124 in the adjustment component 25 drives the adjusting screw 252 to rotate, causing the slider 251 to slide along the slide groove 1241 of the second frame 124, so that the U-shaped frame moves towards the detection section 1213 and enters the upper and lower sides of the placement platform; then the servo motor at the end of the U-shaped frame drives the rotating detection unit 211, and the upper and lower rotating detection unit 211 is rotated synchronously through the synchronous gear set 212. The synchronous gear set 212 is driven by a transmission belt including a transmission wheel meshing with the rotating detection unit 211, and the transmission belt located on the upper and lower sides of the frame 21 is driven by the drive shaft at the end, and the drive shaft is driven synchronously by the servo motor.The alignment lens device 23 at the center of the rotating detection unit 211 performs visual alignment of the product. After the alignment signal is transmitted to the ART tester 22, the ART tester 22 controls another set of servo motors in the adjustment component 25 to drive the adjustment screw 252, which drives the U-shaped frame to finely adjust to the precise position along the guide rod 213. After the positioning is completed, the test probe device 24 at the off-center position of the rotating detection unit 211 contacts the product and transmits the resistance detection signal to the ART tester 22 for analysis. After the test is completed, the adjustment component 25 drives the U-shaped frame to exit the detection section 1213 along the slide groove 1241, waiting for the next set of products to be tested.

[0018] Working principle: When this ART machine is working, the flexible OLED product with completed IC chip and FPC bonding is first placed on the annular placement stage 1112 of the product adsorption rack 11 in the feeding section 1211. The cylinder 122 at the bottom of the support frame 121 drives multiple sets of hinged product adsorption racks 11 to move upward along the moving groove 1231 of the first frame 123. When the product adsorption rack 11 moves to the detection section 1213, the bottom surface of the higher moving groove 1231 of the detection section 1213, in conjunction with the transition slope, separates the stacked product adsorption racks 11. The connecting terminal 114 on the front of the adsorption stage 111 enters the connecting groove 1252 of the vacuum mechanism 125 on the front of the detection section 1213. The moving sleeve 1142 is compressed by the first spring 1143 and cooperates with the positioning groove. The air guide block 1254 adheres to the moving sleeve 1142 under the action of the second spring 1255, so that the air guide hole 12541, the air guide hole 11422 and the air vent 11413 are connected. The vacuum pump 1257 achieves non-contact vacuum positioning of the product through the vacuum adsorption hole 1113. Then, the servo motor of the adjustment component 25 drives... The adjusting screw 252 drives the U-shaped frame to slide along the slide groove 1241 of the second frame 124 into the detection section 1213, positioning it on the upper and lower sides of the placement platform. The rotating detection unit 211 rotates synchronously under the drive of the servo motor and synchronous gear set 212. The upper and lower alignment lens device 23 performs visual alignment of the product and transmits the signal to the ART tester 22. The ART tester 22 controls the adjusting component 25 to drive the U-shaped frame to be finely adjusted to the precise position along the guide rod 213. After the test probe device 24 contacts the product, it examines the IC chip and FPC. The resistance value is detected, and the detection data is transmitted to the ART tester 22 in real time for analysis and judgment. After the detection is completed, the adjustment component 25 drives the U-shaped frame to exit the detection section 1213, the vacuum mechanism 125 stops supplying air, the connecting terminal 114 disengages from the connecting groove 1252, and the cylinder 122 drives the product adsorption rack 11 to continue moving to the discharge section 1212. Qualified products flow into the downstream equipment, and defective products are discharged through CONV. At the same time, the empty product adsorption rack 11 returns to the feeding section 1211 along the moving groove 1231 to realize the reciprocating cycle operation.

[0019] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic resistance detection (ART) machine suitable for OLED flexible displays, characterized in that: include: Product transfer assembly (1), the product transfer assembly (1) includes a product adsorption rack (11) and a conveying mechanism (12) for driving the product adsorption rack (11) to move. The product adsorption rack (11) is provided in several groups. The conveying mechanism (12) can drive the product adsorption rack (11) to reciprocate between the infeed section (1211) and the discharge section (1212) of the support frame (121). The conveying mechanism (12) includes the support frame (121) and a cylinder (122) located at the bottom of the support frame (121). The support frame (121) includes an infeed section (1211) at the bottom, a discharge section (1212) at the top, and a detection section (1213) located between the infeed section (1211) and the discharge section (1212). The detection section (1213) can separate the stacked product adsorption racks (11). The ART detection component (2) is installed on the back of the detection unit (1213) and includes a frame (21) and an ART tester (22) installed on the frame (21). The top and bottom of the frame (21) are equipped with alignment lens devices (23) facing the top and bottom surfaces of the product. The top of the frame (21) is also equipped with a test probe device (24) that can contact the product. The alignment lens device (23) and the test probe device (24) are connected to the ART tester (22) via signal. The frame (21) is installed on the support frame (121) via an adjustment component (25). The frame (21) can move in and out of the detection unit (1213) along the width direction of the support frame (1213) under the drive of the adjustment component (25).

2. The automatic resistance detection ART machine for OLED flexible displays according to claim 1, characterized in that: The product adsorption rack (11) includes an adsorption platform (111) and a support platform (112) on both sides of the adsorption platform (111). The adsorption platform (111) is provided with a locking block (1111) on both sides that is adapted to the locking groove (1121) on the top of the support platform (112). The adsorption platform (111) is engaged with the locking groove (1121) on the top of the support platform (112) through the locking block (1111). Two sets of connecting rods (113) are hinged along the height direction of the support platform (112) on the side of the support platform (112) away from the adsorption platform (111). The end of the connecting rod (113) away from the support platform (112) is respectively hinged to the support platform (112) of the product adsorption rack (11) above and below the support platform (112). The hinge point of the connecting rod (113) between two adjacent sets of support platforms (112) is located in the support frame (121) of the two side conveying mechanisms (12).

3. The automatic resistance detection ART machine for OLED flexible displays according to claim 2, characterized in that: The support frame (121) includes a first frame (123) located on both sides of the product adsorption frame (11) and a second frame (124) located on both sides of the ART detection component (2). The opposite surfaces of the first frame (123) are provided with two sets of moving slots (1231) distributed along the height direction of the first frame (123). The inner side of the moving slot (1231) is provided with through holes (1232) distributed along the length direction of the moving slot (1231), and the through holes (1232) are slidably connected to the limiting shaft (1131) at the hinge of the connecting rod (113) between two adjacent support platforms (112).

4. An automatic resistance detection ART machine suitable for OLED flexible displays according to claim 3, characterized in that: The bottom surface of the moving groove (1231) of the detection unit (1213) is higher than the bottom surface of the moving groove (1231) located in the feeding part (1211) and the discharging part (1212) respectively, and a transition slope is provided between the moving groove (1231) of the detection unit (1213) and the ends of the moving groove (1231) located in the feeding part (1211) and the discharging part (1212).

5. An automatic resistance detection ART machine suitable for OLED flexible displays according to claim 2, characterized in that: The adsorption platform (111) is an annular frame (21), and an annular placement platform (1112) is provided on the inner top edge of the adsorption platform (111). Vacuum adsorption holes (1113) are evenly distributed on the top surface of the annular placement platform (1112). The vacuum adsorption holes (1113) are connected to the connection terminal (114) on the side of the adsorption platform (111). The connection terminal (114) is detachably and sealedly connected to the vacuum mechanism (125) installed on the front of the support frame (121). The vacuum mechanism (125) is installed on the front of the detection part (1213) of the support frame (121).

6. An automatic resistance detection ART machine for OLED flexible displays according to claim 5, characterized in that: The connecting terminal (114) is located on the front of the adsorption stage (111), and includes a connecting tube (1141) and a movable sleeve (1142) fitted on the connecting tube (1141). The inner sidewall of the movable sleeve (1142) is provided with a guide protrusion (11421) along its length, and the outer sidewall of the connecting tube (1141) is provided with a guide groove (11411) that matches the guide protrusion (11421). A positioning ring (11412) is integrally formed on the connecting tube (1141), wherein the inner sidewall of the movable sleeve (1142) and the positioning ring (11412) are aligned. The two parts (412) are elastically connected by a first spring (1143). The free end of the connecting tube (1141) is sealed and a vent hole (11413) is opened on the side of the connecting tube (1141). The side of the movable sleeve (1142) is provided with a vent hole (11422) that is adapted to the vent hole (11413). When the first spring (1143) is in a natural state, the movable sleeve (1142) is in a sealed state with the vent hole (11413). The inner wall of the movable sleeve (1142) blocks the vent hole (11413) on the connecting tube (1141).

7. An automatic resistance detection ART machine for OLED flexible displays according to claim 6, characterized in that: The vacuum mechanism (125) includes a mounting bracket (1251). A connecting groove (1252) adapted to the connecting terminal (114) is provided on the inner side of the mounting bracket (1251). The connecting groove (1252) is distributed along the height direction of the mounting bracket (1251). A positioning groove adapted to the free end of the movable sleeve (1142) is provided at the bottom of the connecting groove (1252). An arc-shaped transition is provided between the top and bottom surfaces of the connecting groove (1252) and the mounting bracket (1251). Air guide blocks (1254) adapted to the sides of the movable sleeve (1142) are provided on both sides of the connecting groove (1252). An arc-shaped groove adapted to the outer surface of the movable sleeve (1142) is provided on the opposite surface of the air guide block (1254). An arc-shaped transition is provided on the upper and lower sides of the arc-shaped groove. The air guide block (1254) is slidably mounted on the air guide groove (1251) along the width direction of the connecting groove (1252). 3) Inside, and the end of the air guide block (1254) away from the connecting groove (1252) is elastically connected to the bottom of the air guide groove (1253) through the second spring (1255), wherein when the connecting terminal (114) enters the connecting groove (1252) and the moving sleeve (1142) is compressed and then cooperates with the positioning groove, the air guide hole (12541) that passes through along the sliding direction of the air guide block (1254) and the moving sleeve (1142) are connected. The air guide hole (11422) on the 42) and the air vent hole (11413) on the connecting pipe (1141) are connected. The two ends of the air guide hole (11422) on the movable sleeve (1142) are aligned and connected with the air guide hole (12541) and the air vent hole (11413) respectively. The other end of the air guide hole (12541) is connected to the vacuum pump (1257) through the connecting hose (1256) that passes through the mounting bracket (1251).

8. An automatic resistance detection ART machine for OLED flexible displays according to claim 1, characterized in that: The frame (21) in the ART detection component (2) adopts a U-shaped frame, wherein the opening of the U-shaped frame faces the product transfer component (1), and the frame (21) is slidably installed in the slide groove (1241) of the second frame (124) by a slider (251), and can slide along the length direction of the second frame (124). A rotation detection unit (211) is rotatably installed inside the frame (21), and the frame (21) can enter the upper and lower sides of the placement table in the detection section (1213). The inner side of the frame (21) is relative to the surface. The rotation detection unit (211) is equipped with a positioning lens device (23) at its center, and a test probe device (24) is also provided at the eccentric position of the inner top surface rotation detection unit (211). The top and bottom of the rotation detection unit (211) are connected by a synchronous gear set (212) to achieve synchronous rotation. A servo motor that drives the rotation detection unit (211) to rotate is also installed at the end of the frame (21) away from the product transmission component (1). The output shaft of the servo motor is connected to the rotating shaft of the rotation detection part (1213).

9. An automatic resistance detection ART machine for OLED flexible displays according to claim 8, characterized in that: The alignment lens device (23) and the test probe device (24) are signal connected to the ART tester (22), wherein the ART tester (22) is located at the end of the U-shaped frame away from the product transmission component (1), and the rotation detection unit (211) is signal connected to the adjustment component (25); the adjustment component (25) includes sliders (251) fixedly installed on both sides of the U-shaped frame away from the opening end, the sliders (251) are slidably installed in the groove (1241) of the second frame (124), and the adjustment component (25) for driving the sliders (251) to move is installed in the second frame (124). Several guide rods (213) are connected between the sliders (251) on both sides of the U-shaped frame, and the guide rods (213) pass through the U-shaped frame and are slidably connected to the U-shaped frame; the adjustment component (25) is provided between the sliders (251) and the U-shaped frame for driving the U-shaped frame to move along the guide rods (213).

10. An automatic resistance detection ART machine for OLED flexible displays according to claim 9, characterized in that: The adjustment assembly (25) includes an adjustment screw (252) and a servo motor that drives the adjustment screw (252) to rotate. One set of adjustment screws (252) passes through the slider (251) inside the second frame (124) and is used to drive the slider (251) to slide along the slide groove (1241) of the second frame (124). Another set of adjustment screws (252) passes through the U-shaped frame between the guide rods (213) and is used to drive the U-shaped frame to move along the guide rods (213). The servo motor is installed at the end of the second frame (124) and its output shaft is connected to the adjustment screw (252) through a coupling.

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