Anisotropic conductive film conductive particle detection device

Abstract

The anisotropic conductive film conductive particle detection device comprises a frame, a loading conveyor device is arranged on the left side above the frame, a defective unloading conveyor device is arranged on the right side above the frame, the defective unloading conveyor belt of the defective unloading conveyor device can make a circular motion under the drive of the defective unloading driving device; a left detection platform and a right detection platform are arranged between the loading conveyor belt and the defective unloading conveyor belt on the frame, the left detection platform is installed on the left electric rotating platform, the left detection platform can make a rotational motion under the drive of the left electric rotating platform, the right detection platform is installed on the right electric rotating platform, the right detection platform can make a rotational motion under the drive of the right electric rotating platform, and a registration camera is arranged below the left detection platform and the right detection platform. The purpose is to provide an anisotropic conductive film conductive particle detection device which can significantly improve the working efficiency of the anisotropic conductive film conductive particle detection device and greatly improve the quality of image acquisition and processing.

Description

Technical Field

[0001] The invention relates to a device for detecting conductive particles of anisotropic conductive adhesive films. Background Art

[0002] Anisotropic Conductive Film (ACF) is a material that can achieve conductive connection in a short time. The main functions of anisotropic conductive film, or ACF, are: conductivity, insulation, and bonding. It mainly consists of two parts: resin adhesive and conductive particles. In addition to moisture-proof, heat-resistant and insulating functions, the resin adhesive mainly fixes the relative position of the electrodes between the IC chip and the substrate, and provides a compressive force to maintain the contact area between the electrodes and the conductive particles.

[0003] In terms of conductive particles, the anisotropic conductive properties mainly depend on the filling rate of the conductive particles. Although the conductivity of anisotropic conductive adhesive will increase with the increase of the conductive particle filling rate, it will also increase the probability of conductive particles contacting each other and causing short circuits.

[0004] In addition, the particle size distribution and distribution uniformity of the conductive particles will also affect the heterogeneous conductive properties. Generally, the conductive particles must have good particle size uniformity and roundness to ensure that the contact area between the electrode and the conductive particles is consistent, maintain the same on-resistance, and at the same time avoid the situation where some electrodes do not contact the conductive particles, resulting in an open circuit. The common particle size range is between 3-5μm. Conductive particles that are too large will reduce the number of particles in contact with each electrode, and it is also easy to cause the conductive particles of adjacent electrodes to contact and short-circuit; conductive particles that are too small are prone to particle aggregation problems, resulting in uneven particle distribution density. In terms of the types of conductive particles, metal powders and polymer plastic balls coated with metals are currently the main types. Commonly used metal powders are nickel (Ni), gold (Au), gold-plated nickel, silver and tin alloys.

[0005] Normally, the conductive particles are evenly distributed in the adhesive and do not touch each other. In addition, there is an insulating film, so the ACF film is non-conductive. When the ACF film is pressurized and heated (generally pressurized and heated twice, the first time is temporarily attached to the product at 60℃~100℃, (3~10)×104Pa, 2s~10s for shipment, and the second time is about 150℃~200℃, (20~40)×104Pa, 10s~20s when the parts are installed), the insulating film of the conductive particles breaks and squeezes together in the part with the line (because it is more protruding than the part without the line), forming a conduction. The volume of the conductive particles after being squeezed is 3 to 4 times the original (the volume of the conductive particles remains unchanged, the difference is that they are originally spherical, and after hot pressing, they become similar to round cakes, so that the upper and lower electrodes have more area to contact the conductive particles). Heating cures the adhesive and maintains the conductive state. Generally, the resistance of the conductive part is below 10Ω, and the resistance between adjacent terminals of the non-conductive part is above 100MΩ.

[0006] An anisotropic conductive film conductive particle detection device is a device used to detect the distribution state of conductive particles on the anisotropic conductive film. The existing anisotropic conductive film conductive particle detection device usually uses a group of alignment cameras and detection platforms to work. However, since the time for adjusting and aligning the anisotropic conductive film is relatively long, the image acquisition camera will have to wait for a long time, resulting in low working efficiency of the existing anisotropic conductive film conductive particle detection device. Since a long time is spent on the process of adjusting and aligning the anisotropic conductive film, the processing time of the image acquisition camera is also very tight, which reduces the quality of image acquisition processing. Summary of the invention

[0007] The object of the present invention is to provide an anisotropic conductive adhesive film conductive particle detection device which can significantly improve the working efficiency of the anisotropic conductive adhesive film conductive particle detection device and greatly improve the quality of image acquisition and processing.

[0008] The anisotropic conductive film conductive particle detection device of the present invention comprises a frame, a loading conveyor device is arranged on the left side above the frame, and the loading conveyor belt of the loading conveyor device can make a circular motion under the drive of the loading drive device, and a defective unloading conveyor device is arranged on the right side above the frame, and the defective unloading conveyor belt of the defective unloading conveyor device can make a circular motion under the drive of the defective unloading drive device;

[0009] A left inspection platform and a right inspection platform are provided on the frame between the loading conveyor belt and the defective unloading conveyor belt. The left inspection platform is installed on the left electric rotating platform. The left inspection platform can rotate under the drive of the left electric rotating platform. A left inspection window is provided on the left inspection platform. The right inspection platform is installed on the right electric rotating platform. The right inspection platform can rotate under the drive of the right electric rotating platform. A right inspection window is provided on the right inspection platform. Alignment cameras are provided below the left inspection platform and the right inspection platform. The alignment cameras are installed on the positioning bracket. The positioning bracket can reciprocate along the left and right horizontal directions under the drive of the positioning bracket driving device.

[0010] An image acquisition camera is provided above the left detection platform and the right detection platform. The image acquisition camera is installed on a fixed bracket. The fixed bracket can reciprocate along the left and right horizontal directions under the drive of the fixed bracket driving device;

[0011] The frame is provided with a feeding device, which can move the anisotropic conductive adhesive film on the feeding conveyor belt and alternately place the anisotropic conductive adhesive film on the left detection platform and the right detection platform;

[0012] The frame is provided with a material unloading device, which can take away the anisotropic conductive adhesive film on the left detection platform and the anisotropic conductive adhesive film on the right detection platform.

[0013] Preferably, the feeding conveying device comprises a mounting frame, the feeding conveying belt is annular, the upper ring section of the feeding conveying belt is arranged along the left-right direction, the left end of the upper ring section of the feeding conveying belt is the feeding end, and the right end of the upper ring section of the feeding conveying belt is the discharging end;

[0014] A right ruler is provided above the right end of the upper ring segment along the front-to-back direction, the end surface of the right ruler facing the left end is a correction surface, the correction surface of the right ruler is located in the front-to-back vertical direction, the right ruler can move along the front-to-back direction under the drive of the right ruler driving device, and the right ruler driving device is installed on the mounting frame;

[0015] A side ruler is provided on the front side or the rear side of the rear end of the upper ring segment, and the end surface of the side ruler facing the middle of the upper ring segment is a correction surface, and the correction surface of the side ruler is located in the left and right vertical directions. The side ruler can move in the front and rear directions under the drive of the side ruler driving device, and the side ruler driving device is installed on the mounting frame;

[0016] When the anisotropic conductive film moves to the discharge end along with the feeding conveyor belt, the right ruler moves forward under the drive of the right ruler driving device, so that the correction surface of the right ruler touches the front end of the anisotropic conductive film to adjust the position of the anisotropic conductive film on the feeding conveyor belt, and then the right ruler returns under the drive of the right ruler driving device and breaks contact with the anisotropic conductive film, while the side ruler moves toward the center of the feeding conveyor belt under the drive of the side ruler driving device, so that the correction surface of the side ruler touches the left side or right side of the anisotropic conductive film to adjust the position of the anisotropic conductive film on the feeding conveyor belt, and then the side ruler returns under the drive of the side ruler driving device and breaks contact with the anisotropic conductive film, and after the anisotropic conductive film is taken away, the above action is repeated for the next anisotropic conductive film that arrives at the discharge end.

[0017] Preferably, the side ruler driving device is a side ruler driving linear motor, which is arranged on the left or right side of the discharge end of the loading conveyor belt, and the power output part of the side ruler driving linear motor can move in the left and right directions. The side ruler driving linear motor is installed on the mounting frame through the base plate, and the power output part of the side ruler driving linear motor is fixedly connected to the side ruler.

[0018] Preferably, the right ruler driving device is a right ruler driving linear motor, which is arranged below the discharge end of the loading conveyor belt, and the power output part of the right ruler driving linear motor can move in the front and rear directions, and the right ruler driving linear motor is installed on the mounting frame, and the power output part of the right ruler driving linear motor is connected to the lower part of the vertical plate, and the plate surface of the vertical plate is located in the left and right vertical directions, and the upper part of the vertical plate is connected to the rear part of the flat plate, and the plate surface of the flat plate is located in the horizontal direction, and the right ruler is fixed at the rear end of the flat plate.

[0019] Preferably, the vertical plate is adjustable in up and down position and is connected to the power output part of the right ruler-driven linear motor.

[0020] Preferably, the feeding device comprises a plurality of feeding vacuum suction cups arranged in parallel, the vacuum suction ports of the plurality of feeding vacuum suction cups are arranged downward, and the plurality of feeding vacuum suction cups are respectively connected to the vacuum pump through a feeding vacuum air path connected in series with an electromagnetic valve;

[0021] The unloading device comprises a plurality of unloading vacuum suction cups arranged in parallel, the vacuum suction ports of the plurality of unloading vacuum suction cups are arranged downward, and the plurality of unloading vacuum suction cups are respectively connected to the vacuum pump through an unloading vacuum air path connected in series with an electromagnetic valve.

[0022] Preferably, the rack comprises a rectangular box, a storage cabinet is provided at the middle and lower part of the box, a storage cabinet door is provided at the front end surface of the box, and support bases for adjusting the horizontal position of the box are provided at the four corners of the bottom of the box.

[0023] When the anisotropic conductive film conductive particle detection device of the present invention is used, since only one alignment camera is used to adjust the alignment of the anisotropic conductive film placed on the left detection platform and the right detection platform respectively, the two are performed alternately, and then the image acquisition camera is moved to the left detection platform or the right detection platform to perform image acquisition processing on the anisotropic conductive film that has completed the alignment adjustment, thereby greatly reducing the waiting time of the alignment camera and the image acquisition camera, significantly improving the working efficiency of the anisotropic conductive film conductive particle detection device, and allowing the image acquisition camera to have more time to detect the anisotropic conductive film, so that the quality of image acquisition processing is also greatly improved. Therefore, the anisotropic conductive film conductive particle detection device of the present invention has the characteristics of significantly improving the working efficiency of the anisotropic conductive film conductive particle detection device and greatly improving the quality of image acquisition processing.

[0024] The anisotropic conductive adhesive film conductive particle detection device of the present invention is further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the anisotropic conductive film conductive particle detection device of the present invention;

[0026] Figure 2 It is a three-dimensional diagram of the feeding and conveying device of the anisotropic conductive film conductive particle detection device of the present invention. DETAILED DESCRIPTION

[0027] like Figure 1 and Figure 2 As shown, the anisotropic conductive film conductive particle detection device of the present invention comprises a frame 1, a loading conveyor device is provided on the left side above the frame 1, and the loading conveyor belt of the loading conveyor device can make a circular motion under the drive of the loading drive device 23, and a defective unloading conveyor device is provided on the right side above the frame 1, and the defective unloading conveyor belt 4 of the defective unloading conveyor device can make a circular motion under the drive of the defective unloading drive device;

[0028] A left inspection platform 5 and a right inspection platform 6 are provided on the frame 1 between the loading conveyor belt and the defective unloading conveyor belt 4. The left inspection platform 5 is installed on the left electric rotating platform 7. The left inspection platform 5 can rotate under the drive of the left electric rotating platform 7. A left inspection window 8 is provided on the left inspection platform 5. The right inspection platform 6 is installed on the right electric rotating platform 10. The right inspection platform 6 can rotate under the drive of the right electric rotating platform 10. A right inspection window 11 is provided on the right inspection platform 6. An alignment camera 12 is provided below the left inspection platform 5 and the right inspection platform 6. The alignment camera 12 is installed on the positioning bracket 3. The positioning bracket 3 can reciprocate along the left and right horizontal directions under the drive of the positioning bracket driving device;

[0029] An image acquisition camera 13 is provided above the left detection platform 5 and the right detection platform 6. The image acquisition camera 13 is mounted on a fixed bracket 30. The fixed bracket 30 can be driven by a fixed bracket driving device to make reciprocating motion along the left and right horizontal directions.

[0030] The frame 1 is provided with a feeding device 14, which can move the anisotropic conductive film on the feeding conveyor belt and alternately place the anisotropic conductive film on the left detection platform 5 and the right detection platform 6;

[0031] The frame 1 is provided with a material unloading device 15 , which can take away the anisotropic conductive adhesive film on the left detection platform 5 and the anisotropic conductive adhesive film on the right detection platform 6 .

[0032] When the present invention is in use, the anisotropic conductive adhesive film conveyed by the feeding conveying device can be alternately placed on the left inspection platform 5 and the right inspection platform 6 through the feeding device 14, and the alignment camera 12 below the left inspection platform 5 and the right inspection platform 6 reciprocates along the left and right horizontal directions under the drive of the fixed bracket driving device and alternately observes the prefabricated positioning points on the anisotropic conductive adhesive film on the left inspection platform 5 and the right inspection platform 6. The alignment camera 12 can observe the prefabricated positioning points on the anisotropic conductive adhesive film on the left inspection platform 5 through the left inspection window 8 from below the left inspection platform 5, or can observe the prefabricated positioning points on the anisotropic conductive adhesive film on the right inspection platform 6 through the right inspection window 11 from below the right inspection platform 6, and then according to the coordinate data of the prefabricated positioning points on the anisotropic conductive adhesive film observed, the left electric rotating platform 7 is rotated again. The left detection platform 5 is used to adjust the position of the anisotropic conductive film on the platform, or the right detection platform 6 is rotated by the right electric rotating platform 10 to adjust the position of the anisotropic conductive film on the platform. After the position of the anisotropic conductive film is adjusted, the image acquisition camera 13 is driven by the fixed bracket driving device to go above the left detection platform 5 or the right detection platform 6, and the image acquisition camera 13 is used to collect the distribution image of the conductive particles on the anisotropic conductive film placed on the left detection platform 5 or the right detection platform 6, and the distribution image of the conductive particles on the anisotropic conductive film is processed by the image processing software to determine whether it is genuine. If it is genuine, the unloading device 15 moves the anisotropic conductive film to the genuine unloading conveyor belt. If it is defective, the unloading device 15 moves the anisotropic conductive film to the defective unloading conveyor belt 4, and the work is repeated in this way;

[0033] As a further improvement of the present invention, Figure 2 As shown, the feeding conveying device comprises a mounting frame 21, the feeding conveying belt is annular, the upper ring section 2 of the feeding conveying belt is arranged along the left-right direction, the left end of the upper ring section 2 of the feeding conveying belt is the feeding end, and the right end of the upper ring section 2 of the feeding conveying belt is the discharging end;

[0034] A right ruler 24 is provided above the right end of the upper ring segment 2 in the front-to-back direction. The end surface of the right ruler 24 facing the left end is a correction surface. The correction surface of the right ruler 24 is located in the front-to-back vertical direction. The right ruler 24 can move in the front-to-back direction under the drive of a right ruler driving device 26. The right ruler driving device 26 is installed on the mounting frame 21.

[0035] A side ruler 25 is provided at the front or rear side of the rear end of the upper ring segment 2. The end surface of the side ruler 25 facing the middle of the upper ring segment 2 is a correction surface. The correction surface of the side ruler 25 is located in the left and right vertical direction. The side ruler 25 can move in the front and rear direction under the drive of the side ruler driving device 27. The side ruler driving device 27 is installed on the mounting frame 21.

[0036] When the anisotropic conductive film 31 moves to the discharge end along with the feeding conveyor belt, the right ruler 24 moves forward under the drive of the right ruler driving device 26, so that the correction surface of the right ruler 24 touches the front end of the anisotropic conductive film 31 to adjust the position of the anisotropic conductive film 31 on the feeding conveyor belt, and then the right ruler 24 returns to its original position under the drive of the right ruler driving device 26 and breaks away from the contact with the anisotropic conductive film 31, while the side ruler 25 moves forward under the drive of the side ruler driving device 27. The side ruler 25 moves toward the center of the feeding conveyor belt under the drive of the side ruler driving device 27, so that the correction surface of the side ruler 25 touches the left side or right side of the anisotropic conductive adhesive film 31 to adjust the position of the anisotropic conductive adhesive film 31 on the feeding conveyor belt. Then, the side ruler 25 is driven by the side ruler driving device 27 to return and break contact with the anisotropic conductive adhesive film 31. After the anisotropic conductive adhesive film 31 is taken away, the above action is repeated for the next anisotropic conductive adhesive film 31 that arrives at the discharge end.

[0037] As a further improvement of the present invention, the above-mentioned side ruler driving device 27 is a side ruler driving linear motor, which is arranged on the left or right side of the discharge end of the loading conveyor belt. The power output part of the side ruler driving linear motor can move in the left and right directions. The side ruler driving linear motor is installed on the mounting frame 21 through the base plate 20, and the power output part of the side ruler driving linear motor is fixedly connected to the side ruler 25.

[0038] As a further improvement of the present invention, the above-mentioned right ruler driving device 26 is a right ruler driving linear motor, which is arranged below the discharge end of the loading conveyor belt. The power output part of the right ruler driving linear motor can move in the front and rear directions. The right ruler driving linear motor is installed on the mounting frame 21. The power output part of the right ruler driving linear motor is connected to the lower part of the vertical plate 28. The plate surface of the vertical plate 28 is located in the left and right vertical directions. The upper part of the vertical plate 28 is connected to the rear part of the flat plate 29. The plate surface of the flat plate 29 is located in the horizontal direction. The right ruler 24 is fixed to the rear end of the flat plate 29.

[0039] As a further improvement of the present invention, the vertical plate 28 is connected to the power output part of the right ruler driving linear motor in an adjustable manner.

[0040] As a further improvement of the present invention, the feeding device 14 comprises a plurality of feeding vacuum suction cups 16 arranged in parallel, the vacuum suction ports of the plurality of feeding vacuum suction cups 16 are arranged downward, and the plurality of feeding vacuum suction cups 16 are respectively connected to the vacuum pump through a feeding vacuum air path connected in series with an electromagnetic valve;

[0041] The unloading device 15 comprises a plurality of unloading vacuum suction cups 17 arranged in parallel, the vacuum suction ports of the plurality of unloading vacuum suction cups 17 are arranged downward, and the plurality of unloading vacuum suction cups 17 are respectively connected to a vacuum pump through an unloading vacuum air path connected in series with an electromagnetic valve.

[0042] As a further improvement of the present invention, the frame 1 comprises a rectangular box, a storage cabinet is provided in the middle and lower part of the box, a storage cabinet door 18 is provided on the front end of the box, and support seats 19 for adjusting the horizontal position of the box are provided at the four corners of the bottom of the box.

[0043] When the feeding conveyor device of the anisotropic conductive film conductive particle detection device of the present invention is in use, when the anisotropic conductive film 31 moves to the discharge end along with the feeding conveyor belt, the right ruler 24 moves forward under the drive of the right ruler driving device 26, so that the correction surface of the right ruler 24 touches the front end of the anisotropic conductive film 31 to adjust the position of the anisotropic conductive film 31 on the feeding conveyor belt, and then the right ruler 24 returns to its original position under the drive of the right ruler driving device 26 and breaks away from the contact with the anisotropic conductive film 31. The side ruler 25 moves toward the center of the feed conveyor belt under the drive of the side ruler driving device 27, so that the correction surface of the side ruler 25 touches the left side or right side of the anisotropic conductive adhesive film 31 to adjust the position of the anisotropic conductive adhesive film 31 on the feed conveyor belt. Then, the side ruler 25 moves back under the drive of the side ruler driving device 27 and breaks away from the contact with the anisotropic conductive adhesive film 31. After the anisotropic conductive adhesive film 31 is taken away, the above action is repeated for the next anisotropic conductive adhesive film 31 that arrives at the discharge end. Since the position of the anisotropic conductive film 31 is adjusted in advance, the random left and right deflection of the anisotropic conductive film placed on the conveyor belt of the feeding and conveying device is eliminated. When the anisotropic conductive film is sucked up by the feeding vacuum suction cup and placed on the workbench, the random deviation of its placement position is significantly reduced, thereby greatly shortening the time required for adjustment, and avoiding the problem of being unable to adjust in place due to large deviations. This can significantly improve the detection and processing efficiency of the equipment, shorten the time for adjustment, and significantly shorten the waiting time of the image acquisition camera. Since the time used in the process of adjusting and aligning the anisotropic conductive film is shortened, the processing time of the image acquisition camera can be very sufficient, and the quality of image acquisition processing is significantly improved. Therefore, the feeding and conveying device for the conductive particle detection machine of the anisotropic conductive film of the present invention has the characteristics of significantly reducing the position deviation of placing the anisotropic conductive film on the workbench, improving the working efficiency of the entire equipment, and thus greatly improving the quality of image acquisition processing.

[0044] When the anisotropic conductive film conductive particle detection device of the present invention is used, since only one alignment camera 12 is used to adjust the alignment of the anisotropic conductive film placed on the left detection platform 5 and the right detection platform 6 respectively, the two are performed alternately, and then the image acquisition camera 13 is moved to the left detection platform 5 or the right detection platform 6 to perform image acquisition processing on the anisotropic conductive film that has completed the alignment adjustment, thereby greatly reducing the waiting time of the alignment camera 12 and the image acquisition camera 13, significantly improving the working efficiency of the anisotropic conductive film conductive particle detection device, and allowing the image acquisition camera 13 to have more time to detect the anisotropic conductive film, so that the quality of image acquisition processing is also greatly improved. Therefore, the anisotropic conductive film conductive particle detection device of the present invention has the characteristics of significantly improving the working efficiency of the anisotropic conductive film conductive particle detection device and greatly improving the quality of image acquisition processing.

[0045] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in the field should all fall within the scope of protection determined by the claims of the present invention.

Claims

1. Anisotropic conductive film conductive particle detection device, characterized in that: The machine comprises a frame (1), a loading conveyor device is provided on the left side above the frame (1), the loading conveyor belt of the loading conveyor device can make circular motion under the drive of the loading drive device (23), and a defective unloading conveyor device is provided on the right side above the frame (1), the defective unloading conveyor belt (4) of the defective unloading conveyor device can make circular motion under the drive of the defective unloading drive device; A left detection platform (5) and a right detection platform (6) are provided on the frame (1) between the loading conveyor belt and the defective unloading conveyor belt (4); the left detection platform (5) is installed on the left electric rotating platform (7); the left detection platform (5) can rotate under the drive of the left electric rotating platform (7); a left detection window (8) is provided on the left detection platform (5); the right detection platform (6) is installed on the right electric rotating platform (10); the right detection platform (6) can rotate under the drive of the right electric rotating platform (10); a right detection window (11) is provided on the right detection platform (6); a registration camera (12) is provided below the left detection platform (5) and the right detection platform (6); the registration camera (12) is installed on the positioning bracket (3); the positioning bracket (3) can reciprocate along the left and right horizontal directions under the drive of the positioning bracket driving device; An image acquisition camera (13) is provided above the left detection platform (5) and the right detection platform (6), and the image acquisition camera (13) is installed on a fixed bracket (30). The fixed bracket (30) can be driven by a fixed bracket driving device to perform reciprocating motion in the left and right horizontal directions; The frame (1) is provided with a loading device (14), which can move the anisotropic conductive adhesive film on the loading conveyor belt and alternately place the anisotropic conductive adhesive film on the left detection platform (5) and the right detection platform (6); The frame (1) is provided with a material unloading device (15), and the material unloading device (15) can take away the anisotropic conductive adhesive film on the left detection platform (5) and the anisotropic conductive adhesive film on the right detection platform (6).

2. The anisotropic conductive film conductive particle detection device according to claim 1, characterized in that: The feeding conveying device comprises a mounting frame (21), the feeding conveying belt is annular, the upper ring section (2) of the feeding conveying belt is arranged in the left-right direction, the left end of the upper ring section (2) of the feeding conveying belt is the feeding end, and the right end of the upper ring section (2) of the feeding conveying belt is the discharging end; A right ruler (24) is provided above the right end of the upper ring segment (2) along the front-to-back direction, the end surface of the right ruler (24) facing the left end is a correction surface, the correction surface of the right ruler (24) is located in the front-to-back vertical direction, the right ruler (24) can move along the front-to-back direction under the drive of a right ruler driving device (26), and the right ruler driving device (26) is installed on the mounting frame (21); A side ruler (25) is provided on the front side or the rear side of the rear end of the upper ring segment (2); the end surface of the side ruler (25) facing the middle part of the upper ring segment (2) is a correction surface; the correction surface of the side ruler (25) is located in the left and right vertical directions; the side ruler (25) can move in the front and rear directions under the drive of a side ruler driving device (27); and the side ruler driving device (27) is installed on the mounting frame (21); When the anisotropic conductive film (31) moves to the discharge end along with the feeding conveyor belt, the right ruler (24) moves forward under the drive of the right ruler driving device (26), so that the correction surface of the right ruler (24) abuts against the front end of the anisotropic conductive film (31) to adjust the position of the anisotropic conductive film (31) on the feeding conveyor belt, and then the right ruler (24) moves back under the drive of the right ruler driving device (26) and moves with the anisotropic conductive film (31). 1) is out of contact, and the side ruler (25) moves toward the center of the feed conveyor belt under the drive of the side ruler driving device (27), so that the correction surface of the side ruler (25) abuts against the left side or right side of the anisotropic conductive adhesive film (31) to adjust the position of the anisotropic conductive adhesive film (31) on the feed conveyor belt, and then the side ruler (25) is driven by the side ruler driving device (27) to return to its original position and is out of contact with the anisotropic conductive adhesive film (31).

3. The anisotropic conductive film conductive particle detection device according to claim 2, characterized in that: The side ruler driving device (27) is a side ruler driving linear motor, which is arranged on the left or right side of the discharge end of the feeding conveyor belt, and the power output part of the side ruler driving linear motor can move in the left and right directions. The side ruler driving linear motor is installed on the mounting frame (21) through the bottom plate (20), and the power output part of the side ruler driving linear motor is fixedly connected to the side ruler (25).

4. The anisotropic conductive adhesive film conductive particle detection device according to claim 2 or 3, characterized in that: The right ruler driving device (26) is a right ruler driving linear motor, which is arranged below the discharge end of the feeding conveyor belt. The power output part of the right ruler driving linear motor can move in the front-rear direction. The right ruler driving linear motor is installed on the mounting frame (21). The power output part of the right ruler driving linear motor is connected to the lower part of the vertical plate (28). The plate surface of the vertical plate (28) is located in the left and right vertical direction. The upper part of the vertical plate (28) is connected to the rear part of the flat plate (29). The plate surface of the flat plate (29) is located in the horizontal direction. The right ruler (24) is fixed to the rear end of the flat plate (29).

5. The anisotropic conductive film conductive particle detection device according to claim 4, characterized in that: The vertical plate (28) is connected to the power output part of the right ruler driving linear motor in an adjustable manner.

6. The anisotropic conductive film conductive particle detection device according to claim 5, characterized in that: The feeding device (14) comprises a plurality of feeding vacuum suction cups (16) arranged in parallel, the vacuum suction ports of the plurality of feeding vacuum suction cups (16) being arranged downward, and the plurality of feeding vacuum suction cups (16) being connected to a vacuum pump through a feeding vacuum air path connected in series with an electromagnetic valve respectively; The unloading device (15) comprises a plurality of unloading vacuum suction cups (17) arranged in parallel, wherein the vacuum suction ports of the plurality of unloading vacuum suction cups (17) are arranged downward, and the plurality of unloading vacuum suction cups (17) are respectively connected to a vacuum pump via an unloading vacuum air path connected in series with an electromagnetic valve.

7. The anisotropic conductive film conductive particle detection device according to claim 6, characterized in that: The frame (1) comprises a rectangular box, a storage cabinet is provided in the middle and lower part of the box, a storage cabinet door (18) is provided on the front end surface of the box, and support seats (19) that can be used to adjust the horizontal position of the box are provided at the four corners of the bottom of the box.

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