Hard material belt automatic splicing device

Abstract

The application belongs to the technical field of wafer manufacturing, and particularly relates to a hard material belt automatic splicing device, which comprises a cutting mechanism, a pulling mechanism, a material belt track, a rubberizing mechanism, a first conveying mechanism and a second conveying mechanism. The material belt track is in the stroke range of the rubberizing mechanism. One end of the material belt track is provided with the first conveying mechanism. The other end of the material belt track is provided with the second conveying mechanism. The conveying start end of the second conveying mechanism is in the stroke range of the pulling mechanism. The rubberizing range of the rubberizing mechanism is between the two ends of the material belt track. The stroke path of the pulling mechanism is in the cutting range of the cutting mechanism. The hard material belt automatic splicing device is designed by adopting the mode that the cutting mechanism and the pulling mechanism cooperate with the material belt track and the rubberizing mechanism, the first conveying mechanism and the second conveying mechanism, and the problem of how to automatically splice the material belt is solved.

Description

Technical Field

[0001] This application belongs to the field of wafer manufacturing technology, specifically an automatic splicing device for rigid strips. Background Technology

[0002] During the encapsulation process, the die is held between two strips of material, thus encapsulating the die between the two strips. Therefore, when the strip is exhausted, the beginning of the new strip needs to be connected to the end of the nearly exhausted strip to ensure continued die encapsulation. However, currently, after replacing the strip, workers place the new strip roll behind the machine, locate the beginning of the new strip roll, and then connect the beginning of the new strip roll to the end of the nearly exhausted strip, which is not intelligent. Summary of the Invention

[0003] The purpose of this application is to address the shortcomings of existing technologies by designing an automatic splicing device for rigid material strips, which solves the problem of how to automatically splice material strips by setting up a cutting mechanism, a pulling machine, a material strip track, an adhesive application mechanism, a first conveying mechanism, and a second conveying mechanism.

[0004] To achieve the above objectives, the following technical solution is adopted: An automatic splicing device for rigid material strips includes a cutting mechanism, a pulling mechanism, a material strip track, an adhesive application mechanism, a first conveying mechanism, and a second conveying mechanism. The material strip track is within the stroke range of the adhesive application mechanism. One end of the material strip track is provided with the first conveying mechanism, and the other end of the material strip track is provided with the second conveying mechanism. The starting point of the second conveying mechanism is within the stroke range of the pulling mechanism. The two ends of the material strip track are within the adhesive application range of the adhesive application mechanism. The stroke path of the pulling mechanism is within the cutting range of the cutting mechanism.

[0005] Preferably, the material belt track includes a track groove and a track sidewall. The track groove has an upper opening. The lower end of the track sidewall is connected to the bottom wall of the track. The upper end of the track sidewall extends to the upper opening of the track groove. Each end of the track groove has an end opening that communicates with the interior of the track groove.

[0006] Preferably, the adhesive application mechanism includes an application mounting roller, an application take-up roller, a suction cup robot, an application frame, and an application take-up motor. The application mounting roller and the application take-up roller are rotatably mounted on the application frame. The output shaft of the application take-up motor is connected to the application take-up roller. The suction cup robot is located on the application frame away from the mounting roller and the application take-up roller. The mounting roller and the application take-up roller are parallel to each other. The application take-up roller and the material track are both within the stroke range of the suction cup robot. The application take-up motor is signal-connected to the second conveying mechanism and the cutting mechanism.

[0007] Preferably, the first conveying mechanism includes a first conveying wheel, a first conveying idler wheel that cooperates with the first conveying wheel, a first conveying motor, and a first conveying frame. The first conveying frame is located at one end of the material belt track facing away from the second conveying mechanism. The first conveying wheel and the first conveying idler wheel are both rotatably mounted on the first conveying frame. The output shaft of the first conveying motor is connected to the first conveying wheel. The first conveying motor is connected to the adhesive applicator and the cutting mechanism.

[0008] Preferably, the second conveying mechanism includes a second conveying wheel, a mating top plate, a second conveying frame, a second lifting device, and a second conveying motor. The second conveying frame is located at one end of the material belt track opposite to the first conveying mechanism. The mating top plate and the second lifting device are mounted on the second conveying frame. The second lifting device is vertically upward. The upper surface of the mating top plate is flush with the inner bottom wall of the material belt track. The free end of the second lifting device is rotatably mounted on the second conveying wheel. The free end of the second lifting device is fixedly connected to the second conveying motor. The output shaft of the second conveying motor is rotatably connected to the second conveying wheel. The mating top plate is located directly below the second conveying wheel. The axis of the second conveying wheel is perpendicular to the inner side wall of the material belt track. The upper surface of the mating top plate is within the stroke range of the second lifting device. Both the second lifting device and the second conveying motor are signal-connected to the cutting mechanism.

[0009] Preferably, the system further includes a third conveying mechanism comprising a third lifting device, a positioning feeding PIN, and a screw conveying mechanism. The lifting direction of the third lifting device is parallel to the inner wall of the material belt track and perpendicular to the inner bottom wall of the material belt track. The positioning feeding PIN is fixedly mounted on the execution end of the third lifting device, and the positioning feeding PIN is located directly above the material belt track. The third lifting device is fixedly mounted on the execution end of the screw conveying mechanism, and the screw in the screw conveying mechanism is parallel to the material belt track. The conveying end of the screw conveying mechanism facing away from the first conveying mechanism is within the stroke range of the traction mechanism.

[0010] Preferably, the pulling mechanism includes a finger cylinder, a fourth lifting device, and a pulling and conveying screw mechanism. The screw in the pulling and conveying screw mechanism is parallel to the material belt track. The fourth lifting device is fixedly installed on the execution end of the pulling and conveying screw mechanism. The finger cylinder is fixedly installed on the free end of the fourth lifting device. The lifting direction of the fourth lifting device is parallel to the inner sidewall of the material belt track and perpendicular to the inner bottom wall of the material belt track. The finger of the finger cylinder is perpendicular to the inner sidewall of the material belt track and parallel to the inner bottom wall of the material belt track. The end of the material belt track facing away from the first conveying device is within the stroke range of the finger cylinder.

[0011] Preferably, the cutting mechanism includes a cutting servo cylinder, an upper cutter, a lower cutter, and a cutting frame. The lower cutter is fixedly mounted on the cutting frame, with its blade facing the material belt track. The lower cutter is located below the side of the material belt track facing the second conveying mechanism, and its blade is perpendicular to the axis of the material belt track. The upper cutter is positioned above the lower cutter, with its blade facing the lower cutter. The upper cutter is fixedly mounted on the actuating end of the cutting servo cylinder. The projection of the material belt track onto the plane containing the side of the lower cutter facing the material belt track is located directly above the two ends of the blade of the lower cutter.

[0012] Preferably, the device further includes a tensioning mechanism, which comprises a tensioning frame, an auxiliary wheel, and a tensioning wheel. The tensioning wheel and the auxiliary wheel are rotatably mounted on the tensioning frame. The tensioning frame is located on the side of the first conveying mechanism facing away from the material belt track. The axis of the auxiliary wheel is parallel to the axis of the tensioning wheel. The tensioning frame is provided with a sliding groove, and a slider is slidably mounted in the sliding groove. The tensioning wheel is rotatably mounted on the slider. An auxiliary wheel is rotatably mounted on each side of the sliding groove on the tensioning frame. The slider is fixedly connected to the tensioning frame by a spring. The spring is parallel to the sliding groove. When the spring is in its normal state, the slider is away from the connecting line segment between the two auxiliary wheels. The axis of the auxiliary wheel is parallel to the inner bottom wall of the material belt track and perpendicular to the side wall of the material belt track.

[0013] Preferably, it also includes an industrial camera, with the conveying end of the second conveying mechanism facing away from the material belt track located within the shooting range of the industrial camera, and the industrial camera signal-connected to the second conveying mechanism and the cutting mechanism.

[0014] Compared with the prior art, the beneficial effects of the technical solution of this application are: This application designs an automatic splicing device for rigid material strips by setting up a cutting mechanism, a pulling machine, a material strip track, an adhesive application mechanism, a first conveying mechanism, and a second conveying mechanism, thus solving the problem of how to automatically splice material strips. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the adhesive application mechanism in this application; Figure 3 for Figure 1 A structural diagram of the back side; Figure 4 This is a schematic diagram of the back side of the mounting coil in this application.

[0016] The components include: 1. Track groove; 2. Track sidewall; 3. Material application mounting roller; 4. Material application take-up roller; 5. Suction cup robot; 6. Material application frame; 7. Material application take-up motor; 8. First conveyor wheel; 9. First conveyor idler wheel; 10. First conveyor motor; 11. Mounting shaft belt reel; 12. First conveyor frame; 13. Second conveyor wheel; 14. Matching top plate; 15. Second conveyor frame; 16. Second lifting device; 17. Second conveyor motor; 18. Third lifting device. Devices; 19. Positioning and conveying pin; 20. Screw conveyor mechanism; 21. Finger cylinder; 22. Fourth lifting device; 23. Pulling and conveying screw mechanism; 24. Cutting servo cylinder; 25. Upper cutter; 26. Lower cutter; 27. Cutting frame; 28. Tensioning frame; 29. ​​Auxiliary wheel; 30. Tensioning wheel; 31. Sliding groove; 32. Slider; 33. Spring; 34. Industrial camera; 35. Material strip; 36. Material roll mounting roller; 37. Collection box. Detailed Implementation

[0017] Reference Figure 1-4 An automatic splicing device for rigid strips includes a cutting mechanism, a pulling mechanism, a strip track, an adhesive application mechanism, a first conveying mechanism, and a second conveying mechanism. The strip track is within the stroke range of the adhesive application mechanism. One end of the strip track is provided with the first conveying mechanism, and the other end of the strip track is provided with the second conveying mechanism. The starting point of the second conveying mechanism is within the stroke range of the pulling mechanism. The two ends of the strip track are within the adhesive application range of the adhesive application mechanism. The stroke path of the pulling mechanism is within the cutting range of the cutting mechanism.

[0018] In this embodiment, when the old material strip is about to run out, the old material strip is cut by the cutting mechanism, and then the old material strip is removed from the roll by a robotic arm. Afterwards, an AGV (not shown in the figure) in conjunction with a material roll installation robotic arm (not shown in the figure) transports a new material strip roll and installs it onto the material roll installation roller 36. Then, after locating the head end of the new material strip roll, the pulling mechanism pulls the head end of the new material strip roll onto the second conveyor mechanism, which then pulls the material strip onto the material strip track. Simultaneously, the tail end of the old material strip is conveyed away from the second conveyor mechanism by the first conveyor mechanism until the tail end of the old material strip and the head end of the new material strip are both within the adhesive application range of the adhesive application mechanism. The tail end of the old material strip is then aligned with the head end of the new material strip, and the adhesive application mechanism applies a single piece of adhesive tape to both the head end of the new material strip and the tail end of the old material strip, thus achieving splicing.

[0019] As a preferred embodiment, the material belt track includes a track groove 1 and a track sidewall 2. The track groove 1 has an upper opening, the lower end of the track sidewall 2 is connected to the bottom wall of the track, the upper end of the track sidewall 2 extends to the upper opening of the track groove 1, and each end of the track groove 1 has an end opening that communicates with the interior of the track groove 1.

[0020] This configuration allows the adhesive applicator to insert the patch (not shown) into the track groove 1 through the upper opening, bonding the end of the old strip to the beginning of the new strip. The end opening is designed to allow the strip to pass through the track. The track sidewall 2 is designed to prevent the strip from shifting within the track groove 1.

[0021] In a preferred embodiment, the adhesive application mechanism includes an application mounting roller 3, an application take-up roller 4, a suction cup robot 5, an application frame 6, and an application take-up motor 7. The application mounting roller 3 and the application take-up roller 4 are rotatably mounted on the application frame 6. The output shaft of the application take-up motor 7 is driven to the application take-up roller 4. The suction cup robot 5 is positioned on the application frame 6 away from the mounting roller 3 and the application take-up roller 4. The mounting roller 3 and the application take-up roller 4 are parallel to each other. The application take-up roller 4 and the material strip track are both within the stroke range of the suction cup robot 5. The application take-up motor 7 is signal-connected to the second conveying mechanism and the cutting mechanism.

[0022] With this setup, the material roll is installed on the material mounting roller 3, and one end of the material roll is fixed to the circumferential surface of the material take-up roller 4. During the operation of the material take-up motor 7, the material is unrolled, so that the suction cup on the suction cup robot arm 5 can go to the material roll to tear off the material and stick it to the splice between the old material strip and the new material strip.

[0023] In a preferred embodiment, the first conveying mechanism includes a first conveying wheel 8, a first conveying idler wheel 9 cooperating with the first conveying wheel 8, a first conveying motor 10, and a first conveying frame 12. The first conveying frame 12 is located at the end of the material belt track facing away from the second conveying mechanism. Both the first conveying wheel 8 and the first conveying idler wheel 9 are rotatably mounted on the first conveying frame 12. The output shaft of the first conveying motor 10 is drive-connected to the first conveying wheel 8, and the first conveying motor 10 is signal-connected to the adhesive application mechanism and the cutting mechanism. With this configuration, the first conveying wheel 8 and the first conveying idler wheel 9 clamp the upper and lower surfaces of the material belt, thereby achieving the conveying of the material belt.

[0024] In a preferred embodiment, the second conveying mechanism includes a second conveying wheel 13, a mating top plate 14, a second conveying frame 15, a second lifting device 16, and a second conveying motor 17. The second conveying frame 15 is located at one end of the material belt track facing away from the first conveying mechanism. The mating top plate 14 and the second lifting device 16 are mounted on the second conveying frame. The second lifting device 16 is vertically upward, and the upper surface of the mating top plate 14 is flush with the inner bottom wall of the material belt track. The second conveying wheel 13 is rotatably mounted on the free end of the second lifting device 14. The free end of the second lifting device 14 is fixedly connected to the second conveying motor 17, and the output shaft of the second conveying motor 17 is rotatably connected to the second conveying wheel 13. The mating top plate 14 is located directly below the second conveying wheel 13, and the axis of the second conveying wheel 13 is perpendicular to the inner side wall of the material belt track. The upper surface of the mating top plate 14 is within the stroke range of the second lifting device 14. Both the second lifting device 14 and the second conveying motor 17 are signal-connected to the cutting mechanism. The second lifting device 14 is provided to avoid affecting the pulling mechanism's pulling of the new material belt's head end to the track groove 1. The top plate 14 cooperates with the second conveyor wheel 13 to realize the conveying of the material belt.

[0025] As a preferred embodiment, a third conveying mechanism is also included, comprising a third lifting device 18, a positioning feeding PIN 19, and a screw conveyor mechanism 20. The lifting direction of the third lifting device 18 is parallel to the inner wall of the material belt track and perpendicular to the inner bottom wall of the material belt track. The positioning feeding PIN 19 is fixedly mounted on the actuating end of the third lifting device, and the positioning feeding PIN 19 is located directly above the material belt track. The third lifting device 18 is fixedly mounted on the actuating end of the screw conveyor mechanism 20. The screw in the screw conveyor mechanism 20 is parallel to the material belt track, and the conveying end of the screw conveyor mechanism 20 facing away from the first conveying mechanism is within the stroke range of the pulling mechanism. This arrangement allows the material belt to be conveyed even when it is in the track groove 1, by driving the positioning feeding PIN 19 to move via the screw conveyor mechanism 20. The screw conveyor mechanism 20 is existing technology and can also be replaced by a rodless cylinder or a robotic arm.

[0026] In a preferred embodiment, the pulling mechanism includes a finger cylinder 21, a fourth lifting device 22, and a pulling and conveying screw mechanism 23. The screw in the pulling and conveying screw mechanism 23 is parallel to the material belt track. The fourth lifting device 22 is fixedly mounted on the actuating end of the pulling and conveying screw mechanism 23, and the finger cylinder 21 is fixedly mounted on the free end of the fourth lifting device 22. The lifting direction of the fourth lifting device 22 is parallel to the inner sidewall of the material belt track and perpendicular to the inner bottom wall of the material belt track. The fingers of the finger cylinder 21 are perpendicular to the inner sidewall of the material belt track and parallel to the inner bottom wall of the material belt track. The end of the material belt track facing away from the first conveying device is within the stroke range of the finger cylinder 21. With this configuration, the finger cylinder 21 clamps the head end of the new material belt and pulls the head end of the new material belt into the track groove 1. The fourth lifting device 22 is also provided to ensure that the finger cylinder 21 does not affect the pulling mechanism's ability to pull the head end of the new material belt into the track groove 1.

[0027] In a preferred embodiment, the cutting mechanism includes a cutting servo cylinder 24, an upper cutter 25, a lower cutter 26, and a cutting frame 27. The lower cutter 26 is fixedly mounted on the cutting frame 27, with its blade facing the material belt track. The lower cutter 26 is located below the side of the material belt track facing the second conveying mechanism, and its blade is perpendicular to the axis of the material belt track. The upper cutter 25 is positioned above the lower cutter 26, with its blade facing the lower cutter 26. The upper cutter 25 is fixedly mounted on the execution end of the cutting servo cylinder 24. The projection of the material belt track onto the plane containing the side of the lower cutter 26 facing the material belt track is located directly above the area between the two ends of the blade of the lower cutter 26. With this configuration, the cutting servo cylinder 24 drives the upper cutter 25 to cooperate with the lower cutter 26, thereby cutting off the tail end of the existing material belt from the head end of a new material belt 35.

[0028] As a preferred embodiment, a tensioning device is also included, comprising a tensioning frame 28, an auxiliary wheel 29, and a tensioning wheel 30. The tensioning wheel 30 and the auxiliary wheel 29 are rotatably mounted on the tensioning frame 28, which is located on the side of the first conveying mechanism facing away from the material belt track. The axis of the auxiliary wheel 29 is parallel to the axis of the tensioning wheel 30. The tensioning frame 28 is provided with a sliding groove 31, and a slider 32 is slidably mounted in the sliding groove 31. The tensioning wheel 30 is rotatably mounted on the slider 32. An auxiliary wheel 29 is rotatably mounted on each side of the sliding groove 31 on the tensioning frame 28. The slider 32 is fixedly connected to the tensioning frame 28 by a spring 33, which is parallel to the sliding groove 31. When the spring 33 is in its normal state, the slider 32 is away from the connecting line segment between the two auxiliary wheels 29. The axis of the auxiliary wheel 29 is parallel to the inner bottom wall of the material belt track and perpendicular to the side wall of the material belt track. By setting the tensioning wheel 30 in this way, when the remaining material belt is insufficient, the tensioning wheel 30 moves toward the connecting line segment between the two auxiliary wheels 29, thereby leaving some material belt 35 so that it can be connected with new material belt.

[0029] As a preferred embodiment, an industrial camera 34 is also included. The conveying end of the second conveying mechanism facing away from the material belt track is within the field of view of the industrial camera 34. The industrial camera 34 is signal-connected to the second conveying mechanism and the cutting mechanism. With this configuration, the usage status of the material belt 35 can be monitored in real time via the industrial camera 34 for easy replacement.

[0030] As a preferred embodiment, a trimming scissors 38 is also provided at the adhesive application mechanism, and a collection box 37 is provided directly below the trimming scissors 28. This facilitates the trimming of the ends of the material strip 25 during splicing.

Claims

1. An automatic splicing device for rigid material strips, characterized in that, The device includes a cutting mechanism, a pulling mechanism, a material belt track, an adhesive application mechanism, a first conveying mechanism, and a second conveying mechanism. The material belt track is within the stroke range of the adhesive application mechanism. One end of the material belt track is equipped with the first conveying mechanism, and the other end of the material belt track is equipped with the second conveying mechanism. The starting point of the second conveying mechanism is within the stroke range of the pulling mechanism. The two ends of the material belt track are within the adhesive application range of the adhesive application mechanism. The stroke path of the pulling mechanism is within the cutting range of the cutting mechanism.

2. The automatic splicing device for rigid material strips according to claim 1, characterized in that: The material belt track includes a track groove (1) and a track side wall (2). The track groove (1) has an upper opening. The lower end of the track side wall (2) is connected to the bottom wall of the track. The upper end of the track side wall (2) extends to the upper opening of the track groove (1). Each end of the track groove (1) is provided with an end opening that communicates with the interior of the track groove (1).

3. The automatic splicing device for rigid material strips according to claim 2, characterized in that: The adhesive applicator includes an applicator mounting roller (3), an applicator take-up roller (4), a suction cup robot (5), an applicator frame (6), and an applicator take-up motor (7). The applicator mounting roller (3) and the applicator take-up roller (4) are rotatably mounted on the applicator frame (6). The output shaft of the applicator take-up motor (7) is connected to the applicator take-up roller (4). The suction cup robot (5) is located on the applicator frame (6) away from the mounting roller (3) and the applicator take-up roller (4). The mounting roller (3) and the applicator take-up roller (4) are parallel to each other. The applicator take-up roller (4) and the material strip track are both within the stroke range of the suction cup robot (5). The applicator take-up motor (7) is signal-connected to the second conveying mechanism and the cutting mechanism.

4. The automatic splicing device for rigid material strips according to claim 1, characterized in that: The first conveying mechanism includes a first conveying wheel (8), a first conveying idler wheel (9) that cooperates with the first conveying wheel (8), a first conveying motor (10), and a first conveying frame (12). The first conveying frame (12) is located at one end of the material belt track facing away from the second conveying mechanism. The first conveying wheel (8) and the first conveying idler wheel (9) are both rotatably mounted on the first conveying frame (12). The output shaft of the first conveying motor (10) is connected to the first conveying wheel (8) via a drive. The first conveying motor (10) is connected to the adhesive application mechanism and the cutting mechanism via a signal.

5. The automatic splicing device for rigid material strips according to claim 1, characterized in that: The second conveying mechanism includes a second conveying wheel (13), a mating top plate (14), a second conveying frame (15), a second lifting device (16), and a second conveying motor (17). The second conveying frame (15) is located at one end of the material belt track facing away from the first conveying mechanism. The mating top plate (14) and the second lifting device (16) are mounted on the second conveying frame. The second lifting device (16) is vertically upward. The upper surface of the mating top plate (14) is flush with the inner bottom wall of the material belt track. The free end of the second lifting device (14) is rotatably mounted with the second conveying wheel (17). The free end of the second lifting device (14) is fixedly connected to the second conveying motor (17), and the output shaft of the second conveying motor (17) is rotatably connected to the second conveying wheel (13). The mating top plate (14) is located directly below the second conveying wheel (13). The axis of the second conveying wheel (13) is perpendicular to the inner wall of the material belt track. The upper surface of the mating top plate (14) is within the stroke range of the second lifting device (14). The second lifting device (14) and the second conveying motor (17) are both signal connected to the cutting mechanism.

6. The automatic splicing device for rigid material strips according to claim 1, characterized in that: It also includes a third conveying mechanism including a third lifting device (18), a positioning feeding PIN (19), and a screw conveying mechanism (20). The lifting direction of the third lifting device (18) is parallel to the inner wall of the material belt track, and the lifting direction of the third lifting device (18) is perpendicular to the inner bottom wall of the material belt track. The positioning feeding PIN (19) is fixedly installed at the execution end of the third lifting device. The positioning feeding PIN (19) is located directly above the material belt track. The third lifting device (18) is fixedly installed on the execution end of the screw conveying mechanism (20). The screw in the screw conveying mechanism (20) is parallel to the material belt track. The conveying end of the screw conveying mechanism (20) facing away from the first conveying mechanism is within the stroke range of the traction mechanism.

7. The automatic splicing device for rigid material strips according to claim 1, characterized in that: The pulling mechanism includes a finger cylinder (21), a fourth lifting device (22), and a pulling and conveying screw mechanism (23). The screw in the pulling and conveying screw mechanism (23) is parallel to the material belt track. The fourth lifting device (22) is fixedly installed on the execution end of the pulling and conveying screw mechanism (23). The finger cylinder (21) is fixedly installed on the free end of the fourth lifting device (22). The lifting direction of the fourth lifting device (22) is parallel to the inner side wall of the material belt track and perpendicular to the inner bottom wall of the material belt track. The finger of the finger cylinder (21) is perpendicular to the inner side wall of the material belt track and parallel to the inner bottom wall of the material belt track. The end of the material belt track facing away from the first conveying device is within the stroke range of the finger cylinder (21).

8. The automatic splicing device for rigid material strips according to claim 1, characterized in that: The cutting mechanism includes a cutting servo cylinder (24), an upper cutter (25), a lower cutter (26), and a cutting frame (27). The lower cutter (26) is fixedly mounted on the cutting frame (27). The blade of the lower cutter (26) faces the material belt track. The lower cutter (26) is located below the side of the material belt track facing the second conveying mechanism. The blade of the lower cutter (26) is perpendicular to the axis of the material belt track. The upper cutter (25) is located above the lower cutter (26). The blade of the upper cutter (25) faces the lower cutter (26). The upper cutter (25) is fixedly mounted on the execution end of the cutting servo cylinder (24). The projection of the material belt track on the plane where the side of the lower cutter (26) faces the material belt track is located directly above the two ends of the blade of the lower cutter (26).

9. The automatic splicing device for rigid material strips according to claim 1, characterized in that: It also includes a tensioning device, which includes a tensioning frame (28), an auxiliary wheel (29), and a tensioning wheel (30). The tensioning wheel (30) and the auxiliary wheel (29) are rotatably mounted on the tensioning frame (28). The tensioning frame (28) is located on the side of the first conveying mechanism facing away from the material belt track. The axis of the auxiliary wheel (29) is parallel to the axis of the tensioning wheel (30). The tensioning frame (28) is provided with a sliding groove (31), and a slider (32) is slidably mounted in the sliding groove (31). A slider (32) is rotatably mounted on the slider (32). The tensioning wheel (30) and the tensioning frame (28) are each provided with an auxiliary wheel (29) on both sides of the sliding groove (31). The sliding block (32) is fixedly connected to the tensioning frame (28) by a spring (33). The spring (33) is parallel to the sliding groove (31). When the spring (33) is in the normal state, the slider (32) is away from the connecting line segment between the two auxiliary wheels (29). The axis of the auxiliary wheel (29) is parallel to the inner bottom wall of the material belt track and perpendicular to the side wall of the material belt track.

10. The automatic splicing device for rigid material strips according to claim 1, characterized in that: It also includes an industrial camera (34), the conveying end of the second conveying mechanism facing away from the material belt track is within the shooting range of the industrial camera (34), and the industrial camera (34) is signal connected to the second conveying mechanism and the cutting mechanism.

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