On-line detecting and sorting device and method for die cutting defects of transparent adhesive film

Abstract

The invention provides a transparent adhesive film die cutting defect online detecting and sorting device and method, and belongs to the technical field of adhesive film die cutting machining corollary equipment.The device mainly comprises a machine body assembly and an automatic detecting mechanism, and the machine body assembly is composed of a base, a rotary type rotary table and a center console; the automatic detection mechanism comprises a material conveying rack, a supporting frame, an image collector, an electrical performance tester and an optical performance analysis tester, integrated online detection of appearance defects, electrical performance and optical performance after die cutting of the transparent adhesive film can be achieved on the whole, and meanwhile automatic sorting of qualified products and unqualified products is completed. A rotating disc type circulation structure is adopted, double-image acquisition and multi-dimensional performance testing are matched, manual intervention is not needed, the detection precision is high, the speed is high, the device can be matched with a continuous die cutting production line, the ex-factory qualified rate of products is effectively increased, and the manual detection cost is reduced.

Description

Technical Field

[0001] This invention relates to an online detection and sorting device for defects in die-cut transparent adhesive films. It is mainly designed for die-cut transparent adhesive films, and performs integrated online detection of appearance defects, electrical properties, and optical properties. It also automatically sorts qualified and unqualified products. It is suitable for the post-die-cut inspection process of various electronic and packaging transparent adhesive films and belongs to the technical field of adhesive film die-cutting processing equipment. Background Technology

[0002] Transparent adhesive film is a common consumable in the production of electronic components and packaging materials. Die-cutting is the core process of cutting a roll of adhesive film into a specified size and shape. After die-cutting, adhesive film is prone to defects such as burrs, damage, dimensional misalignment, uneven light transmission, and substandard electrical properties. These defects directly affect the subsequent use effect, so defect detection and sorting must be carried out after die-cutting.

[0003] Currently, most industries rely on manual visual inspection, with workers examining each piece of adhesive film individually and using simple instruments for performance checks. This method is not only slow and incompatible with the efficiency of continuous die-cutting production lines, but also prone to missed or incorrect inspections due to visual fatigue, especially for minute defects and electrical or optical performance defects, which are impossible for humans to accurately identify. Furthermore, manual sorting after inspection is time-consuming and labor-intensive, and can easily cause secondary contamination or damage to products, making fully automated online operation impossible.

[0004] Existing automated inspection equipment is limited to detecting only appearance defects and lacks simultaneous detection of electrical and optical properties. Furthermore, the equipment is complex in structure, inconvenient to debug, and cannot be adapted to transparent adhesive films of different specifications. The sorting accuracy is also difficult to meet production requirements. Therefore, an online detection and sorting device and method for die-cutting defects of transparent adhesive films are proposed. Summary of the Invention

[0005] In view of this, the present invention aims to provide an online detection and sorting device and method for defects in the die-cutting of transparent adhesive films, so as to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] First aspect: The technical solution of the present invention is implemented as follows: an online detection and sorting device for defects in die-cutting of transparent adhesive film, comprising a body assembly and an automatic detection mechanism, wherein the body assembly comprises a base, a turntable and a central control console; The automatic testing mechanism includes a material conveyor frame, four support frames, a first image acquisition unit, a second image acquisition unit, six electrical performance testers, and an optical performance analysis tester. The turntable is rotatably connected to the upper surface of the base, the central control console is installed on the outer side wall of the base, the material conveyor is mounted above the turntable, the four support frames are respectively fixedly connected to the outer side wall of the base, the first image acquisition device is installed on the inner side wall of one of the support frames, the second image acquisition device is installed on the inner side wall of the other support frame, the six electrical performance testers are symmetrically installed on the inner side wall of the turntable, and the optical performance analysis tester is installed on the outer side wall of the base near the material conveyor frame.

[0007] More preferably, a first servo motor is installed at the bottom of the inner sidewall of the base, and the output shaft of the first servo motor is fixedly connected to the bottom of the turntable.

[0008] More preferably, a second servo motor is installed on the outer side of the base away from the central control panel, and the output shaft of the second servo motor is fixedly connected to the bottom of the material conveyor frame.

[0009] More preferably, a conveyor is provided on one side of the bottom of the conveyor frame, and a feeder is provided on the other side of the bottom of the conveyor frame.

[0010] More preferably, three first hydraulic cylinders are symmetrically installed on the upper surface of the conveying frame, and the piston rods of the three first hydraulic cylinders all penetrate the inner sidewall of the conveying frame and are fixedly connected to a suction cup.

[0011] More preferably, a display screen is installed on the top of the outer wall of the center console, and an audible and visual alarm is installed in the middle of the upper surface of the center console.

[0012] More preferably, the inner sidewall of the turntable is symmetrically slidably connected with six support plates, and the upper surface of the six optical performance analyzers is uniformly equipped with PIN pins. The outer sidewalls of the PIN pins are slidably connected to the inner sidewalls of the support plates, and a first spring is installed in the middle of the upper surface of each of the six optical performance analyzers. The end of the first spring away from the optical performance analyzer is fixedly connected to the bottom of the six support plates.

[0013] More preferably, a second hydraulic cylinder is installed in the middle of the upper surface of one of the support frames, and a third hydraulic cylinder is installed in the middle of the upper surface of the other support frame. The piston rod of the third hydraulic cylinder passes through the inner sidewall of the support frame and is fixedly connected to an integrating sphere. The bottom of the integrating sphere is connected to a light guide tube.

[0014] More preferably, rodless cylinders are uniformly installed on the upper surface of the turntable. A micro servo motor is fixedly connected to the output block of the rodless cylinder. A connecting frame is fixedly connected to the output shaft of the micro servo motor. A sleeve is fixedly connected to the middle of the side of the connecting frame away from the micro servo motor. A connecting rod is slidably connected to the inner wall of the sleeve. A clamping plate is fixedly connected to the end of the connecting rod away from the sleeve. A second spring is fixedly connected to the inner wall of the sleeve. The end of the second spring away from the sleeve is fixedly connected to one end of the connecting rod. Two guide rods are symmetrically fixedly connected to the side of the clamping plate near the connecting rod. The outer walls of the two guide rods are slidably connected to the inner wall of the connecting frame.

[0015] More preferably, the signal output terminals of the first image acquisition device, the second image acquisition device, the electrical performance tester, and the optical performance analysis tester are electrically connected to the signal input terminal of the central control unit via wires. The signal output terminal of the central control unit is electrically connected to the signal input terminal of the display screen via wires. The electrical output terminal of the central control unit is electrically connected to the electrical input terminals of the audible and visual alarm, the first servo motor, the second servo motor, the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the rodless cylinder, and the micro servo motor via wires.

[0016] The second aspect: an online detection and sorting method for die-cutting defects in transparent adhesive film, applied to the aforementioned device, includes the following steps: S1: Equipment initialization and debugging. Set detection parameters, speed threshold and sorting standards through the central control console, start the first servo motor and the second servo motor, and adjust the turntable and material conveyor frame to the appropriate work position. S2: Automatic feeding. The conveyor transports the die-cut transparent adhesive film to the designated station. The first hydraulic cylinder drives the suction cup to move down, adsorbs the adhesive film, and transfers it to the tray of the turntable. The clamping plate elastically holds the edge of the adhesive film under the action of the second spring. S3: Multi-dimensional online inspection. The first servo motor drives the turntable to rotate intermittently, passing through the appearance inspection station, electrical performance inspection station, and optical performance inspection station in sequence. The first and second image acquisition devices capture images of the adhesive film surface to identify appearance defects such as die-cut burrs, damage, and misalignment. The electrical performance tester contacts the adhesive film through PIN needles to detect its conductivity and insulation properties. The optical performance analysis tester, in conjunction with an integrating sphere and a light guide tube, detects light transmission uniformity and haze index. S4: Defect judgment and alarm. The central control console receives the test data and compares it with the preset standard to determine whether the product is qualified. If a non-qualified product is detected, the sound and light alarm will sound immediately and record the defect type. S5: Automatic sorting and unloading. The turntable transfers qualified and unqualified products to the corresponding unloading stations. The unloading machine, in conjunction with the suction cup, completes the sorting and unloading, realizing the separation and collection of qualified and defective products.

[0017] The main body components serve as the foundation of the entire device, with the core consisting of a base, a turntable, and a central control unit. The base is placed on a flat surface, providing a mounting platform for all components. The first servo motor is installed inside the base, directly driving the top turntable to rotate intermittently at a constant speed, enabling the transfer of the adhesive film at different testing stations. The central control unit is installed on the outside of the base, serving as the control core of the entire device. It integrates a display screen and an audible and visual alarm, allowing for real-time viewing of testing data and rapid response to abnormal situations.

[0018] The automatic inspection mechanism integrates feeding, inspection, and sorting functions. The height of the conveyor frame is adjusted by a second servo motor to accommodate different specifications of adhesive films. The bottom is equipped with a conveyor and a discharge machine to complete automatic feeding and sorting discharge, respectively. Four support frames are symmetrically fixed on the outside of the base, and the first and second image acquisition devices are installed on them to capture images of the adhesive film surface from two angles, comprehensively capturing appearance defects. Six electrical performance testers are symmetrically installed on the inside of the turntable. With the help of spring-loaded trays and pins, they flexibly contact the adhesive film to complete electrical performance testing, avoiding punctures to the product. A light performance analysis tester is installed on the side of the base, with an integrating sphere and a light guide tube to accurately test the light performance indicators of the adhesive film, such as light transmittance and uniformity.

[0019] Above the turntable is an elastic clamping assembly. Through rodless cylinders and micro servo motors, the clamping plates are driven, and with the help of springs and guide rods, the adhesive film is flexibly clamped without damaging the product edges. It is also suitable for adhesive films of different thicknesses. The hydraulic cylinders and suction cups on the feeding frame enable the non-destructive transfer of the adhesive film, avoiding manual contact throughout the process and ensuring product cleanliness.

[0020] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: This invention integrates three major functions: appearance image inspection, electrical performance inspection, and optical performance inspection. It covers all common defect types after die-cutting of transparent adhesive films. Dual image acquisition eliminates blind spots, and multi-point electrical performance testing is more accurate, completely solving the problems of missed detection and misjudgment by manual inspection.

[0021] This invention adopts a rotary workstation flow, automating the entire process of feeding, inspection, and sorting without requiring manual intervention during machine downtime. It can be directly connected to the die-cutting production line, greatly improving inspection and sorting efficiency and adapting to the needs of continuous production.

[0022] The present invention uses a tray with a buffer spring, a clamping plate with elastic clamping, and a suction cup for adsorption and transfer, without any hard compression throughout the process, avoiding damage or deformation of the adhesive film, and reducing contamination from human contact.

[0023] This invention allows for parameter setting via a central control panel touch screen. The turntable speed, clamping force, and detection threshold can all be adjusted. The second servo motor can adjust the height of the feeding frame, adapting to transparent adhesive films of different sizes and thicknesses, making the equipment highly versatile.

[0024] This invention is equipped with an audible and visual alarm that immediately alerts when defective products are detected. The display screen simultaneously shows the type and location of the defect, facilitating quick troubleshooting by staff and enabling subsequent production process optimization.

[0025] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the axial structure of the base of the present invention; Figure 4 This is a cross-sectional view of the base of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of area A structure; Figure 6 This is a schematic diagram of the isometric structure of the electrical performance tester of the present invention; Figure 7 This is a schematic diagram of the axial structure of the integrating sphere and light guide tube of the present invention; Figure 8 This is a bottom-view structural diagram of the first image acquisition device of the present invention.

[0028] Reference numerals: 1. Machine body assembly; 2. Automatic detection mechanism; 101. Base; 102. Turntable; 103. Central control console; 201. Conveying frame; 202. Support frame; 203. First image acquisition unit; 204. Second image acquisition unit; 205. Electrical performance tester; 206. Optical performance analysis tester; 40. Suction cup; 41. First servo motor; 42. Second servo motor; 43. Conveyor; 44. Unloading machine; 45. First hydraulic cylinder; 46. Display screen; 47. Audible and visual alarm; 48. Pallet; 49. Pin; 50. First spring; 51. Second hydraulic cylinder; 52. Third hydraulic cylinder; 53. Integrating sphere; 54. Light guide tube; 55. Rodless cylinder; 56. Miniature servo motor; 57. Connecting frame; 58. Clamping plate; 59. Guide rod; 60. Sleeve; 61. Connecting rod; 62. Second spring. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] like Figures 1-8 As shown, this embodiment of the invention provides an online detection and sorting device for die-cutting defects of transparent adhesive film, including a body assembly 1 and an automatic detection mechanism 2. The body assembly 1 includes a base 101, a turntable 102 and a central control table 103. The automatic testing mechanism 2 includes a material conveyor frame 201, four support frames 202, a first image acquisition device 203, a second image acquisition device 204, six electrical performance testers 205, and an optical performance analysis tester 206. The turntable 102 is rotatably connected to the upper surface of the base 101. The central control console 103 is installed on the outer side wall of the base 101. The material conveyor frame 201 is located above the turntable 102. The four support frames 202 are respectively fixedly connected to the outer side wall of the base 101. The first image acquisition device 203 is installed on the inner side wall of one of the support frames 202. The second image acquisition device 204 is installed on the inner side wall of the other support frame 202. The six electrical performance testers 205 are symmetrically installed on the inner side wall of the turntable 102. The optical performance analysis tester 206 is installed on the outer side wall of the base 101 near the material conveyor frame 201.

[0032] Specifically in this embodiment, a first servo motor 41 is installed at the bottom of the inner side wall of the base 101, and the output shaft of the first servo motor 41 is fixedly connected to the bottom of the turntable 102.

[0033] Specifically in this embodiment, a second servo motor 42 is installed on the outer side of the base 101 away from the central control panel 103, and the output shaft of the second servo motor 42 is fixedly connected to the bottom of the material conveyor frame 201.

[0034] Specifically in this embodiment, a conveyor 43 is provided on one side of the bottom of the conveyor frame 201, and a feeder 44 is provided on the other side of the bottom of the conveyor frame 201.

[0035] Specifically in this embodiment, three first hydraulic cylinders 45 are symmetrically installed on the upper surface of the material conveying frame 201. The piston rods of the three first hydraulic cylinders 45 all penetrate the inner sidewall of the material conveying frame 201 and are fixedly connected to a suction cup 40.

[0036] Specifically in this embodiment, a display screen 46 is installed on the top of the outer wall of the central control panel 103, and an audible and visual alarm 47 is installed in the middle of the upper surface of the central control panel 103.

[0037] Specifically, in this embodiment, six support plates 48 are symmetrically slidably connected to the inner sidewall of the turntable 102. PIN pins 49 are evenly installed on the upper surface of the six optical performance analyzers 206. The outer sidewalls of the PIN pins 49 are slidably connected to the inner sidewalls of the support plates 48. A first spring 50 is installed in the middle of the upper surface of each of the six optical performance analyzers 206. The end of the first spring 50 away from the optical performance analyzer 206 is fixedly connected to the bottom of the six support plates 48.

[0038] Specifically in this embodiment, a second hydraulic cylinder 51 is installed in the middle of the upper surface of one of the support frames 202, and a third hydraulic cylinder 52 is installed in the middle of the upper surface of the other support frame 202. The piston rod of the third hydraulic cylinder 52 passes through the inner sidewall of the support frame 202 and is fixedly connected to an integrating sphere 53. The bottom of the integrating sphere 53 is connected to a light guide tube 54.

[0039] Specifically, in this embodiment, rodless cylinders 55 are uniformly installed on the upper surface of the turntable 102. The output block of the rodless cylinder 55 is fixedly connected to a micro servo motor 56. The output shaft of the micro servo motor 56 is fixedly connected to a connecting frame 57. A sleeve 60 is fixedly connected to the middle of the side of the connecting frame 57 away from the micro servo motor 56. A connecting rod 61 is slidably connected to the inner wall of the sleeve 60. A clamping plate 58 is fixedly connected to the end of the connecting rod 61 away from the sleeve 60. A second spring 62 is fixedly connected to the inner wall of the sleeve 60. The end of the second spring 62 away from the sleeve 60 is fixedly connected to one end of the connecting rod 61. Two guide rods 59 are symmetrically fixedly connected to the side of the clamping plate 58 near the connecting rod 61. The outer walls of the two guide rods 59 are slidably connected to the inner wall of the connecting frame 57.

[0040] First, place the base stably on a flat surface next to the die-cutting production line and fix the bottom anti-slip pads to prevent the equipment from shifting during operation. Then, install the first servo motor inside the bottom of the base and fix the output shaft to the center of the bottom of the turntable to ensure that the turntable rotates smoothly. Install four support frames at corresponding positions on the outside of the base and fix the first image acquisition device, the second image acquisition device, the second hydraulic cylinder, and the third hydraulic cylinder respectively. Adjust the height of the acquisition device and the integrating ball to align with the turntable detection station.

[0041] Six electrical performance testers are symmetrically installed on the inside of the turntable, and corresponding support plates with pins and first springs are installed to ensure that the pins can slide flexibly and the support plates have a buffer function. Rodless cylinders, micro servo motors and elastic clamping components are evenly installed on the surface of the turntable. The position of the clamping plates is adjusted to ensure that the clamping force is moderate. An optical performance analyzer is installed on the side of the base and connected to the light guide tube and integrating sphere to ensure that the optical path is unobstructed.

[0042] The material conveyor frame is installed on the base via the second servo motor, connecting the conveyor and the unloading machine. Three sets of first hydraulic cylinders and suction cups are installed, and the position of the suction cups is adjusted. Finally, the central control console is fixed on the outside of the base, and all the motors, data acquisition devices, and testers are connected. The wiring is tidied up to avoid tangling, and the equipment installation is completed.

[0043] First, the initialization is completed through the central control display screen, setting the die-cutting defect judgment criteria, electrical performance threshold, optical performance index, as well as parameters such as the turntable intermittent speed and clamping force; after the equipment is started, the die-cut transparent adhesive film is automatically fed by the conveyor, the first hydraulic cylinder drives the suction cup to adsorb the adhesive film, and smoothly transfer it to the turntable tray, where the elastic clamp automatically clamps the product edge.

[0044] The first servo motor drives the turntable to rotate intermittently, and the product passes through three core testing stations in sequence: the first and second image acquisition devices take pictures of the product surface from different angles and transmit them to the central control console in real time to analyze appearance defects; when it turns to the electrical performance station, the product is pressed down on the tray, and the PIN pin contacts the product to complete the performance test; when it turns to the optical performance station, the integrating sphere moves down and completes the light transmittance test through the light guide tube.

[0045] The central control console analyzes the inspection data in real time. Qualified products are transferred to the qualified unloading station, while unqualified products are transferred to the defective unloading station. The unloading machine automatically completes the classification and collection. If a serious defect is detected, the audible and visual alarm will sound immediately, and the display screen will simultaneously show the defect information, which can be quickly viewed by the staff. During the inspection process, parameters can be adjusted at any time via the central control console, and the second servo motor can adjust the height of the conveyor frame as needed to adapt to different products.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An online detection and sorting device for defects in die-cutting of transparent adhesive film, comprising a body assembly (1) and an automatic detection mechanism (2), characterized in that: The body assembly (1) includes a base (101), a turntable (102), and a central control panel (103). The automatic testing mechanism (2) includes a material conveyor frame (201), four support frames (202), a first image acquisition device (203), a second image acquisition device (204), six electrical performance testers (205) and an optical performance analysis tester (206). The turntable (102) is rotatably connected to the upper surface of the base (101). The central control unit (103) is installed on the outer side wall of the base (101). The material conveyor frame (201) is located above the turntable (102). The four support frames (202) are respectively fixedly connected to the outer side wall of the base (101). The first image acquisition device (203) is installed on the inner side wall of one of the support frames (202). The second image acquisition device (204) is installed on the inner side wall of another support frame (202). The six electrical performance testers (205) are symmetrically installed on the inner side wall of the turntable (102). The optical performance analysis tester (206) is installed on the outer side wall of the base (101) near the material conveyor frame (201).

2. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 1, characterized in that: A first servo motor (41) is installed on the bottom of the inner wall of the base (101), and the output shaft of the first servo motor (41) is fixedly connected to the bottom of the turntable (102).

3. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 2, characterized in that: A second servo motor (42) is installed on the outer side of the base (101) away from the central control panel (103), and the output shaft of the second servo motor (42) is fixedly connected to the bottom of the material conveyor frame (201).

4. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 1, characterized in that: A conveyor (43) is provided on one side of the bottom of the conveyor frame (201), and a feeder (44) is provided on the other side of the bottom of the conveyor frame (201).

5. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 3, characterized in that: Three first hydraulic cylinders (45) are symmetrically installed on the upper surface of the conveying frame (201). The piston rods of the three first hydraulic cylinders (45) all penetrate the inner sidewall of the conveying frame (201) and are fixedly connected to a suction cup (40).

6. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 5, characterized in that: A display screen (46) is installed on the top of the outer wall of the central control panel (103), and an audible and visual alarm (47) is installed in the middle of the upper surface of the central control panel (103).

7. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 1, characterized in that: The inner sidewall of the turntable (102) is symmetrically slidably connected with six trays (48). The upper surfaces of the six optical performance analyzers (206) are uniformly equipped with PIN pins (49). The outer sidewalls of the PIN pins (49) are slidably connected to the inner sidewalls of the trays (48). The upper surfaces of the six optical performance analyzers (206) are each equipped with a first spring (50). The end of the first spring (50) away from the optical performance analyzer (206) is fixedly connected to the bottom of the six trays (48).

8. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 6, characterized in that: A second hydraulic cylinder (51) is installed in the middle of the upper surface of one of the support frames (202), and a third hydraulic cylinder (52) is installed in the middle of the upper surface of the other support frame (202). The piston rod of the third hydraulic cylinder (52) passes through the inner wall of the support frame (202) and is fixedly connected to an integrating sphere (53). The bottom of the integrating sphere (53) is connected to a light guide tube (54).

9. The online detection and sorting device for die-cutting defects of transparent adhesive film according to claim 8, characterized in that: The upper surface of the turntable (102) is uniformly equipped with rodless cylinders (55). The output block of the rodless cylinder (55) is fixedly connected to a micro servo motor (56). The output shaft of the micro servo motor (56) is fixedly connected to a connecting frame (57). A sleeve (60) is fixedly connected to the middle of the side of the connecting frame (57) away from the micro servo motor (56). A connecting rod (61) is slidably connected to the inner wall of the sleeve (60). A clamping plate (58) is fixedly connected to the end of the connecting rod (61) away from the sleeve (60). A second spring (62) is fixedly connected to the inner wall of the sleeve (60). The end of the second spring (62) away from the sleeve (60) is fixedly connected to the end of the connecting rod (61). Two guide rods (59) are symmetrically fixedly connected to the side of the clamping plate (58) near the connecting rod (61). The outer walls of the two guide rods (59) are slidably connected to the inner wall of the connecting frame (57).

10. A method for online detection and sorting of defects in the die-cutting of transparent adhesive film, applied to the apparatus described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Equipment initialization and debugging. Set the detection parameters, speed threshold and sorting criteria through the central control panel (103), start the first servo motor (41) and the second servo motor (42), and adjust the turntable (102) and the material conveyor frame (201) to the appropriate work position. S2: Automatic feeding, the conveyor (43) transports the die-cut transparent adhesive film to the designated station, the first hydraulic cylinder (45) drives the suction cup (40) to move down, adsorbs the adhesive film and transfers it to the tray (48) of the turntable (102), and the clamping plate (58) elastically clamps the edge of the adhesive film under the action of the second spring (62). S3: Multi-dimensional online detection. The first servo motor (41) drives the turntable (102) to rotate intermittently, passing through the appearance inspection station, electrical performance inspection station, and optical performance inspection station in sequence: the first image acquisition device (203) and the second image acquisition device (204) photograph the surface of the adhesive film and identify appearance defects such as die-cut burrs, damage, and misalignment; the electrical performance tester (205) contacts the adhesive film through the PIN needle (49) to detect the conductivity and insulation performance; the optical performance analysis tester (206) works with the integrating sphere (53) and the light guide tube (54) to detect the light transmission uniformity and haze index; S4: Defect judgment and alarm. The central control console (103) receives the test data and compares it with the preset standard to determine whether the product is qualified. If an unqualified product is detected, the sound and light alarm (47) will immediately issue an alarm and record the defect type. S5: Automatic sorting and unloading. The turntable (102) transfers qualified and unqualified products to the corresponding unloading stations. The unloading machine (44) works with the suction cup (40) to complete the sorting and unloading, realizing the separation and collection of qualified and defective products.

Images