A high-precision optical film die-cutting device

Abstract

The application discloses a high-precision optical film die-cutting device and particularly relates to the technical field of optical film processing, which comprises a rack, a feeding unit, a receiving unit, a tensioning and guiding unit, a die-cutting unit, a conveying unit and a traction unit. The traction unit is composed of a cross beam, a suction nozzle, a rotating mechanism and a telescopic mechanism. During continuous die-cutting, the suction nozzle can be controlled to deflect upward to quickly capture and position the optical film product. Then, the optical film product is translated to directly above the conveying belt and released at a close distance. Through the reciprocating cycle operation, the optical film product is smoothly, safely and orderly transferred from the die-cutting station to the conveying station. The orderly and regular arrangement of the die-cutting optical film product can be ensured, and problems such as disorderly falling, collision and scratching and stacking disorder caused by the traditional free falling mode of the product can be avoided.

Description

Technical Field

[0001] This invention relates to the field of optical thin film processing technology, and in particular to a high-precision optical thin film die-cutting device. Background Technology

[0002] Optical thin films are essential basic functional materials in optical devices, liquid crystal displays, and precision optoelectronic products, characterized by their thinness, high light transmittance, and high surface precision requirements. In the industrial production and processing of optical thin films, it is necessary to precisely cut long rolls of optical thin film material according to actual usage size requirements, thus processing them into sheet-like finished optical thin films that meet specific dimensions.

[0003] Currently, in the die-cutting process of optical films, the industry mostly uses rotary die-cutting machines to cut whole rolls of film into sheet-like finished products of specified specifications. A rotary die-cutting machine is a high-precision, high-efficiency processing device that uses a circular die roller for continuous rolling die-cutting. Its working principle is as follows: the optical film roll to be processed is drawn out from the feeding roller and wound sequentially around the surfaces of each tension roller. After being tensioned and guided, it passes through the die roller and the pad roller and is wound onto the take-up roller. The material is die-cut by the squeezing action between the blade and the pad roller. The cut optical film is separated from the substrate, and the substrate waste is wound up and recycled. Due to its continuous and high-precision rotary die-cutting processing method, it has become one of the most widely used equipment types in optical film die-cutting production. However, in the actual production process, after the roll material is continuously die-cut by the cutting roller, most of the separated optical film products fall freely to the collection container or conveyor belt below by their own gravity. During the falling process, the finished products are prone to problems such as disorderly falling, mutual collision and messy stacking. This not only easily leads to scratches and damage to the finished products, but also seriously affects the subsequent finished product sorting and storage process. In addition, some of the cut optical film products will stick to the surface of the substrate roll material, resulting in incomplete unloading, which greatly reduces the overall die-cutting accuracy and processing quality of the optical film.

[0004] Therefore, this application proposes a high-precision optical thin film die-cutting device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision optical thin film die-cutting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision optical thin film die-cutting device includes a frame, a feeding unit, a receiving unit, a tensioning and guiding unit, a die-cutting unit, a conveying unit, and a traction unit; The feeding unit includes a feeding roller, which is rotatably mounted on the feed end of the frame and is used to carry and output the optical thin film roll to be processed. The receiving unit includes a receiving roller, which is rotatably mounted on the discharge end of the frame for winding and recycling the die-cut substrate waste. The tensioning and guiding unit includes several tensioning rollers, which are rotatably connected to the feed side of the frame and located between the feeding unit and the die-cutting unit, and are used to tension and guide the optical film roll. The die-cutting unit includes a cutting roller and a first support roller arranged symmetrically on the upper and lower sides. Both the cutting roller and the first support roller are rotatably installed inside the cavity of the frame for continuous die-cutting of optical thin film rolls. The conveying unit includes a conveyor belt, which is horizontally mounted below the discharge side of the die-cutting unit to receive and convey the finished optical film product after being die-cut and separated by the die-cutting unit. The traction unit is located on one side of the die-cutting unit and above the conveying unit. The traction unit is configured to grab the finished optical film and transfer it to the conveying unit for release after the die-cutting unit has finished cutting and separating the finished optical film.

[0007] As a further embodiment of the present invention, a second support roller is rotatably connected inside the central cavity of the frame. The second support roller is disposed above the discharge side of the die-cutting unit and is used to support and guide the die-cut substrate waste to the receiving roller.

[0008] As a further aspect of the present invention, the traction unit includes: A fixed column, which is rotatably connected to the frame via bearings; A crossbeam is located below the fixed column. Two air source connection seats are symmetrically arranged at the middle of the bottom side of the crossbeam. The air port at the bottom of the air source connection seat is detachably connected to a suction nozzle, and the air port at the side end of the air source connection seat is connected to a negative pressure air source through a pipeline. A telescopic mechanism, which is disposed between the fixed column and the crossbeam, is used to drive the nozzle to telescopically extend and retract; A rotating mechanism, located at one end of the fixed column, is used to drive the suction nozzle to deflect.

[0009] As a further aspect of the present invention, the rotating mechanism includes: A guide frame is provided at the end of the fixed column, and a sliding groove is provided inside it; The second motor is located on one side of the frame, and its output end is connected to a connecting rod that faces the guide frame. One end of the connecting rod relative to the output shaft of the second motor is fixed with a guide post, and the guide post is slidably fitted in a groove.

[0010] As a further aspect of the present invention, the telescopic mechanism includes: A fixing base is provided at one end of the fixing column, and a fixing frame is provided at its bottom end; A guide frame is provided at the other end of the fixed column, and the two ends of the crossbeam are slidably connected to the fixed frame and the guide frame respectively; The fixed base has an annular cavity, in which a gear ring is rotatably mounted. A drive gear and a driven gear are symmetrically rotatably connected at both ends of the annular cavity. Both the drive gear and the driven gear mesh with the gear ring. A lead screw is rotatably connected to the inside of the fixed frame through a bearing. The end of the crossbeam is screwed to the outside of the lead screw. One end of the lead screw is connected to the driven gear. A first motor is provided on the side wall of the fixed base. The output end of the first motor is connected to the drive gear.

[0011] As a further aspect of the present invention, the crossbeam is provided with an adjustment assembly, the adjustment assembly comprising: The slide is located on the side wall of the crossbeam, and two movable blocks are symmetrically slidably connected inside it. The two air source connection seats are respectively set on the two movable blocks. A bidirectional screw is rotatably connected to the slide rail via bearings, and both ends of the two movable blocks are symmetrically screwed onto the two ends of the bidirectional screw via threads. One end of the bidirectional screw passes through the crossbeam and is provided with a fixing handle.

[0012] As a further embodiment of the present invention, the top end of the suction nozzle is provided with a threaded connector, and the air port end of the air source connector is provided with a threaded connection groove that matches the threaded connector.

[0013] As a further aspect of the present invention, the high-precision optical thin film die-cutting device further includes a stripping unit, the stripping unit comprising: A top frame, which is disposed at the top of the frame; A support frame is provided below the top frame, and an arc-shaped plate is provided at its bottom end. The bottom end of the arc-shaped plate extends between the cutter roller and the second support roller and is provided with a rubber column. At least one telescopic rod is provided between the top of the support frame and the top frame. A moving mechanism, which is disposed between the top frame and the support frame, is used to drive the arc-shaped plate to move up and down reciprocally.

[0014] As a further aspect of the present invention, the moving mechanism includes: A connecting frame is provided on the bottom side of the top frame, and a connecting shaft is connected to its bottom end through a bearing. A second bevel gear is provided at one end of the connecting shaft, and a first rotating handle is provided at the other end of the connecting shaft. A second rotating handle is hinged to the bottom end of the first rotating handle, and the bottom end of the second rotating handle is movably connected to the support frame through a rotating shaft. The third motor is located on the top side of the top frame, and its output end passes through the top frame and is connected to a first bevel gear that meshes perpendicularly with the second bevel gear.

[0015] The technical effects and advantages provided by the present invention in the above technical solution are as follows: This invention features a traction unit, which consists of a crossbeam, a suction nozzle, a rotating mechanism, and a telescopic mechanism. During continuous die-cutting, the suction nozzle can be controlled to deflect upwards to quickly grab and position the finished optical film. The finished optical film is then pulled horizontally to the top of the conveyor belt and released at close range. This process is repeated cyclically, ensuring a smooth, safe, and orderly transition of the finished optical film from the die-cutting station to the conveying station. This guarantees that the die-cut optical film can be arranged and output in an orderly and neat manner, avoiding the problems of disorderly falling, collision scratches, and messy stacking caused by the traditional free-falling method. The results are excellent. This invention provides a spacing adjustment component on the crossbeam to adjust the distance between the two suction nozzles, thereby allowing the position of the suction nozzles to be adjusted according to the die-cutting specifications of different cutter rollers, so as to better adsorb and grasp the finished optical film. This invention incorporates a stripping unit, which comprises a moving mechanism, a support frame, an arc-shaped plate, and rubber columns. When the finished optical film adheres, the moving mechanism drives the top frame to move the arc-shaped plate up and down within the material area between the cutter roller and the second support roller. The arc-shaped plate can then press the rubber columns against the finished product adhered in the die-cutting groove of the roll material below. Under its flexible constant pressure, the finished product can be flexibly pushed and peeled off, thereby achieving complete separation of the finished optical film from the substrate waste. This effectively avoids adhesion and incomplete stripping. Combined with the traction unit, this greatly ensures the die-cutting accuracy and processing quality of high-precision optical films. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the overall structure of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 5 This is a schematic diagram of the connection between the cutter roller, the second support roller, and the fixed column of the present invention; Figure 6 This is a schematic diagram of the connection between the top frame and the support frame of the present invention; Figure 7 This is a schematic diagram of the connection structure between the fixed column and the crossbeam of the present invention; Figure 8 This is a longitudinal sectional view of the crossbeam of the present invention; Figure 9 This is a schematic diagram of the internal structure of the fixing frame of the present invention; Figure 10 This is a schematic diagram of the connection structure between the air source connector and the nozzle of the present invention.

[0017] In the diagram: 100, frame; 200, feeding roller; 300, receiving roller; 400, tension roller; 500, cutter roller; 501, first support roller; 502, second support roller; 600, fixed column; 601, fixed base; 602, guide frame; 6001, fixed frame; 6002, gear ring; 6003, first motor; 6004, drive gear; 6005, driven gear; 6006, lead screw; 700, crossbeam; 701, air source connection seat; 702, suction nozzle; 70 3. Movable block; 704. Bidirectional screw; 705. Fixed handle; 800. Second motor; 801. Connecting rod; 802. Guide post; 803. Guide frame; 900. Conveyor belt; 1010. Top frame; 1020. Telescopic rod; 1030. Support frame; 1040. Arc plate; 1050. Rubber column; 1100. Third motor; 1101. First bevel gear; 1102. Second bevel gear; 1103. Connecting shaft; 1104. First rotating handle; 1105. Second rotating handle. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 like Figures 1-4As shown, this invention provides a high-precision optical film die-cutting device, including a frame 100, a feeding unit, a receiving unit, a tensioning and guiding unit, a die-cutting unit, a conveying unit, and a traction unit. The feeding unit includes a feeding roller 200, which is rotatably mounted on the feeding end of the frame 100 for carrying and outputting the optical film roll to be processed. The receiving unit includes a receiving roller 300, which is rotatably mounted on the discharge end of the frame 100 for winding and recycling the substrate waste after die-cutting. The tensioning and guiding unit includes several tensioning rollers 400, which are rotatably connected to the feeding side of the frame 100 and located between the feeding unit and the die-cutting unit for tensioning and guiding the optical film roll. The die-cutting unit includes a blade roller 500 and a first support roller 501 symmetrically arranged vertically. Rollers 501 are rotatably mounted inside the cavity of the frame 100 for continuous die-cutting of optical film rolls. The die-cutting unit is also equipped with a roller lifting structure and a roller rotating structure. The roller lifting structure is used to drive the vertical displacement of the cutter roller 500 to achieve adjustable control of the cutting gap. The roller lifting structure is used to drive the cutter roller 500 to rotate or the cutter roller 500 and the first support roller 501 to rotate in opposite directions to achieve continuous die-cutting of the optical film roll between them. These are all conventional technical means in the field and are not all shown in the figure. Those skilled in the art can directly implement them with existing mature equipment, so they will not be described in detail. The conveying unit includes a conveyor belt 900, which is horizontally mounted below the discharge side of the die-cutting unit to receive and convey the finished optical film after being die-cut and separated by the die-cutting unit. like Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the traction unit is located on one side of the die-cutting unit and above the conveying unit. The traction unit is configured to grab the finished optical film and transfer it to the conveying unit for release after the die-cutting unit completes the cutting and separation of the finished optical film. A second support roller 502 is rotatably connected inside the central cavity of the frame 100. The second support roller 502 is located above the discharge side of the die-cutting unit and is used to support and guide the die-cut substrate waste to the receiving roller 300. The second support roller 502 can provide stable support for the die-cut substrate waste. Since the second support roller 502 is located above the discharge side, the high position of the second support roller 502 forms an upward pulling force on the substrate waste, creating a reverse tension difference between the substrate and the finished product at the cutting and separating position, which promotes the rapid separation of the finished optical film and the substrate waste.

[0020] In a specific embodiment of the present invention, the traction unit includes: a fixed column 600, which is rotatably connected to the frame 100 via bearings; a crossbeam 700, which is disposed below the fixed column 600, and two air source connection seats 701 are symmetrically arranged at the middle of the bottom side of the crossbeam 700. A suction nozzle 702 is detachably connected to the bottom air port of the air source connection seat 701, and the side air port of the air source connection seat 701 is connected to a negative pressure air source via a pipeline. (Reference) Figure 10 As shown, the top of the suction nozzle 702 is provided with a threaded connector, and the air port end of the air source connector 701 is provided with a threaded connection groove that matches the threaded connector. The threaded connector and the threaded connection groove are screwed together and sealed with a sealing ring between them. This allows for quick disassembly, assembly, replacement and maintenance of the suction nozzle 702. An external negative pressure air source can be connected to the two suction nozzles 702 synchronously by using a split hose. Even if the suction nozzle 702 extends, retracts and swings, it will not cause pulling, bending or interference to the pipeline, ensuring continuous unobstructed airflow. The telescopic mechanism is located between the fixed column 600 and the crossbeam 700 and is used to drive the telescopic movement of the suction nozzle 702. The rotating mechanism is located at one end of the fixed column 600 and is used to drive the deflection of the suction nozzle 702.

[0021] The optical film roll to be processed is drawn out from the feeding roller 200 and wound sequentially around the surface of each tension roller 400. After being tensioned and guided, it passes through the die-cutting gap between the cutter roller 500 and the first support roller 501, and then finally wound around the take-up roller 300 through the upper surface of the second support roller 502. During the forward conveying of the optical film roll, in conjunction with the rotation of the cutter roller 500 and the squeezing of the first support roller 501, the optical film roll can be continuously and precisely cut. The finished optical film after cutting is separated with the roll conveying and comes out from the discharge port in the gap between the cutter roller 500 and the first support roller 501. Under its own gravity, it falls downward and moves towards the conveyor belt 900 below. During the die-cutting process, when the optical film product is just cut, the head part extends out of the discharge port first. The rotating mechanism drives the fixed column 600 to swing upward, so that the fixed column 600 drives the suction nozzle 702 to deflect upward toward the discharge port through the crossbeam 700. As the optical film product continues to be conveyed and extended, its head gradually separates and falls downward. At the same time, the telescopic mechanism drives the crossbeam 700 to move downward, so that the crossbeam 700 drives the suction nozzle 702 to extend toward the optical film product. The suction nozzle 702 is activated, so that it generates negative pressure suction to adsorb the optical film product, and completes rapid gripping and positioning. The rotating mechanism drives the fixed column 600 to swing downwards, causing the suction nozzle 702 to move the optical film product horizontally to directly above the conveyor belt 900. As the telescopic mechanism continues to drive the suction nozzle 702 downwards, the distance between the optical film product and the conveyor belt 900 is reduced. Finally, the suction nozzle 702 closes, releasing the optical film product so that it lands smoothly on the surface of the conveyor belt 900. After a single transfer is completed, the telescopic mechanism and the rotating mechanism reset in sequence, causing the suction nozzle 702 to retract and deflect upwards to continue grabbing the next section of optical film product. This cycle is repeated, thus achieving a smooth, safe, and orderly transition of the optical film product from the die-cutting station to the conveying station. This ensures that the die-cut optical film products can be arranged and output in an orderly and neat manner, avoiding the problems of disorderly falling, collision scratches, and messy stacking caused by the traditional free-falling method. The effect is better.

[0022] In this embodiment, the rotating mechanism includes: The guide frame 803 is located at the end of the fixed column 600 and has a sliding groove inside it; The second motor 800 is located on one side of the frame 100, and its output end is connected to a connecting rod 801 facing the guide frame 803. One end of the connecting rod 801 relative to the output shaft of the second motor 800 is fixed with a guide post 802. The guide post 802 is slidably engaged in the slide groove. By starting the second motor 800, the second motor 800 can drive the connecting rod 801 to make a circular motion, so that the connecting rod 801 drives the guide post 802 to slide back and forth in the slide groove. This allows the guide frame 803 to drive the fixed post 600 to swing back and forth, and the fixed post 600 drives the suction nozzle 702 to deflect back and forth through the crossbeam 700, thereby controlling the suction nozzle 702 to switch back and forth between the die-cutting station and the conveying station.

[0023] In this embodiment, the telescopic mechanism includes: A fixing base 601 is provided at one end of a fixing post 600, and a fixing frame 6001 is provided at its bottom end; The guide frame 602 is located at the other end of the fixed column 600, and the two ends of the crossbeam 700 are slidably connected to the fixed frame 6001 and the guide frame 602 respectively. The fixed base 601 has an annular cavity, in which a gear ring 6002 is rotatably mounted. A drive gear 6004 and a driven gear 6005 are symmetrically rotatably connected at both ends of the annular cavity. Both the drive gear 6004 and the driven gear 6005 mesh with the gear ring 6002. A lead screw 6006 is rotatably connected to the inside of the fixed frame 6001 via bearings. The end of the crossbeam 700 is screwed onto the lead screw 6006. One end of the lead screw 6006 is connected to the driven gear 6005. A first motor 6003 is mounted on the side wall of the fixed base 601. The output end of the first motor 6003 is connected to the drive gear... The wheel 6004 is connected, and the first motor 6003 drives the drive gear 6004 to rotate forward and backward, so that the drive gear 6004 drives the meshing gear ring 6002 to rotate. Then the gear ring 6002 can drive another meshing driven gear 6005 to rotate synchronously, so that the driven gear 6005 drives the lead screw 6006 to rotate. Under the drive of the screw, the lead screw 6006 can drive the crossbeam 700 to slide along the fixed frame 6001. And with the sliding cooperation of another set of guide frames 602, the crossbeam 700 can be driven to rise and fall stably in a straight line, so that the crossbeam 700 can drive the suction nozzle 702 to move up and down.

[0024] Example 2 like Figure 8 As shown, the crossbeam 700 of the present invention is provided with an adjustment assembly, which includes: The slide is located on the side wall of the crossbeam 700, and two movable blocks 703 are symmetrically slidably connected inside it. Two air source connection seats 701 are respectively set on the two movable blocks 703. The bidirectional screw 704 is rotatably connected to the slide rail via bearings, and the two ends of the two movable blocks 703 are symmetrically screwed to the two ends of the bidirectional screw 704 via threads. One end of the bidirectional screw 704 passes through the crossbeam 700 and is provided with a fixing handle 705.

[0025] In this embodiment, the movement of the movable block 703 is driven by the combination of the bidirectional screw 704 and the fixed handle 705. By turning the fixed handle 705, the bidirectional screw 704 is driven to rotate, so that the bidirectional screw 704 drives the two movable blocks 703 to move towards or away from each other in the slide. The movable block 703 can drive the suction nozzle 702 to move through the air source connection seat 701, thereby adjusting the distance between the two suction nozzles 702. In this way, the position of the suction nozzle 702 can be adjusted according to the die-cutting specifications of different cutter rollers 500, so as to better adsorb and grasp the finished optical film.

[0026] Example 3 like Figures 3-6 As shown, the high-precision optical thin film die-cutting device of the present invention further includes a stripping unit, which includes: Top frame 1010, which is located at the top of frame 100; The support frame 1030 is located below the top frame 1010, and an arc plate 1040 is provided at its bottom end. The bottom end of the arc plate 1040 extends between the cutter roller 500 and the second support roller 502 and is provided with a rubber column 1050. At least one telescopic rod 1020 is provided between the top of the support frame 1030 and the top frame 1010. The moving mechanism, which is located between the top frame 1010 and the support frame 1030, is used to drive the arc plate 1040 to move up and down reciprocally.

[0027] During continuous die-cutting, due to factors such as film material, die-cutting precision, and electrostatic adsorption, the finished optical film sometimes easily adheres to the surface of the substrate roll and cannot be separated independently. Therefore, this device employs a stripping unit for the peeling operation, as detailed below: The support frame 1030 is driven to reciprocate and move up and down by the moving mechanism. Under the support and limit of the telescopic rod 1020, the support frame 1030 can drive the arc plate 1040 to move up and down in the material area between the cutter roller 500 and the second support roller 502. When the arc plate 1040 descends, it can drive the rubber column 1050 at the bottom to press against the finished product that is stuck in the die-cutting groove of the roll material below. Under its flexible constant pressure, the finished product can be flexibly pushed and peeled off, thereby realizing the complete separation of the finished optical film and the substrate waste, effectively avoiding the problems of adhesion and incomplete stripping, and greatly ensuring the die-cutting accuracy and processing quality of high-precision optical films.

[0028] In one specific embodiment of the present invention, the moving mechanism includes: A connecting frame is provided on the bottom side of the top frame 1010, and a connecting shaft 1103 is connected to its bottom end through a bearing. A second bevel gear 1102 is provided at one end of the connecting shaft 1103, and a first rotating handle 1104 is provided at the other end of the connecting shaft 1103. A second rotating handle 1105 is hinged to the bottom end of the first rotating handle 1104, and the bottom end of the second rotating handle 1105 is movably connected to the support frame 1030 through a rotating shaft. The third motor 1100 is located on the top side of the top frame 1010, and its output end passes through the top frame 1010 and is connected to a first bevel gear 1101 that meshes perpendicularly with the second bevel gear 1102. The third motor 1100 drives the first bevel gear 1101 to rotate, and the first bevel gear 1101 drives the connecting shaft 1103 to rotate the first rotating handle 1104 through the second bevel gear 1102. Under the limitation of the telescopic rod 1020, the first rotating handle 1104 can drive the support frame 1030 to rise and fall stably through the second rotating handle 1105, thereby enabling the support frame 1030 to drive the arc plate 1040 to rise and fall stably.

[0029] Working principle and process: In use, the optical film roll to be processed can be drawn out from the feeding roller 200 first, so that the roll is wound sequentially around the surface of each tension roller 400. After being tensioned and guided, it passes through the die-cutting gap between the cutter roller 500 and the first support roller 501, and then finally wound onto the take-up roller 300 through the upper surface of the second support roller 502. During the forward conveying of the optical film roll, in conjunction with the rotation of the cutter roller 500 and the squeezing of the first support roller 501, the optical film roll can be continuously and precisely cut. The finished optical film is separated along with the roll conveying. During the die-cutting process, the rotating mechanism drives the crossbeam 700 to drive the suction nozzle 702 to deflect upward toward the discharge port in sync. As the finished optical film continues to be conveyed and extended, its head gradually separates and falls downward. In conjunction with the telescopic mechanism, the crossbeam 700 drives the suction nozzle 702 to extend toward the finished optical film, and the suction nozzle 702 is activated to generate negative pressure suction to adsorb the finished optical film, completing the rapid gripping and positioning. At the same time, the finished optical film adheres to the... When attached to the surface of the substrate roll, the support frame 1030 can be driven to reciprocate up and down by the moving mechanism. The support frame 1030 drives the arc plate 1040 to move up and down in the material area between the cutter roller 500 and the second support roller 502. When the arc plate 1040 descends, it can drive the rubber column 1050 at the bottom to press against the finished product adhered in the die-cutting groove of the roll below. Under its flexible constant pressure, the finished product can be flexibly pushed and peeled off. After being gripped and positioned, the suction nozzle 702 is driven by the rotating mechanism to move the optical film finished product horizontally to the top of the conveyor belt 900. The telescopic mechanism continues to drive the suction nozzle 702 to move down, reducing the distance between the optical film finished product and the conveyor belt 900. Finally, the suction nozzle 702 is closed to release the optical film finished product, allowing it to fall smoothly onto the surface of the conveyor belt 900. After a single transfer is completed, the telescopic mechanism and the rotating mechanism are reset in sequence to continue gripping the next section of optical film finished product. This cycle is repeated to achieve an orderly and regular output of the optical film finished product after die-cutting.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision optical thin film die-cutting device, characterized in that, It includes a frame (100), a feeding unit, a receiving unit, a tensioning and guiding unit, a die-cutting unit, a conveying unit, and a traction unit; The feeding unit includes a feeding roller (200), which is rotatably mounted on the feed end of the frame (100) for carrying and outputting the optical film roll to be processed; The receiving unit includes a receiving roller (300), which is rotatably mounted on the discharge end of the frame (100) for winding and recycling the die-cut substrate waste; The tensioning and guiding unit includes several tensioning rollers (400), which are rotatably connected to the feed side of the frame (100) and located between the feeding unit and the die-cutting unit, for tensioning and guiding the optical film roll; The die-cutting unit includes a cutting roller (500) and a first support roller (501) arranged symmetrically on the upper and lower sides. The cutting roller (500) and the first support roller (501) are rotatably installed inside the cavity of the frame (100) for continuous die-cutting of optical thin film rolls. The conveying unit includes a conveyor belt (900), which is horizontally mounted below the discharge side of the die-cutting unit and is used to receive and convey the finished optical film product after being die-cut and separated by the die-cutting unit. The traction unit is located on one side of the die-cutting unit and above the conveying unit. The traction unit is configured to grab the finished optical film and transfer it to the conveying unit for release after the die-cutting unit has finished cutting and separating the finished optical film.

2. The high-precision optical thin film die-cutting device according to claim 1, characterized in that, The frame (100) has a second support roller (502) rotatably connected inside the central cavity. The second support roller (502) is located above the discharge side of the die-cutting unit and is used to support and guide the die-cut substrate waste to the receiving roller (300).

3. The high-precision optical thin film die-cutting device according to claim 1, characterized in that, The traction unit includes: A fixed column (600) is rotatably connected to the frame (100) via a bearing; A crossbeam (700) is located below the fixed column (600). Two air source connection seats (701) are symmetrically arranged at the middle of the bottom side of the crossbeam (700). The air port at the bottom end of the air source connection seat (701) is detachably connected to a suction nozzle (702), and the air port at the side end of the air source connection seat (701) is connected to a negative pressure air source through a pipeline. A telescopic mechanism is provided between the fixed column (600) and the crossbeam (700) to drive the suction nozzle (702) to telescopically move; A rotating mechanism, located at one end of the fixed column (600), is used to drive the suction nozzle (702) to deflect.

4. The high-precision optical thin film die-cutting device according to claim 3, characterized in that, The rotating mechanism includes: A guide frame (803) is provided at the end of the fixed column (600) and has a sliding groove therein; The second motor (800) is located on one side of the frame (100), and its output end is connected to a connecting rod (801) facing the guide frame (803). One end of the connecting rod (801) relative to the output shaft of the second motor (800) is fixed with a guide post (802), and the guide post (802) is slidably fitted in a groove.

5. A high-precision optical thin film die-cutting device according to claim 3, characterized in that, The telescopic mechanism includes: A fixing base (601) is provided at one end of the fixing column (600), and a fixing frame (6001) is provided at its bottom end. The guide frame (602) is located at the other end of the fixed column (600), and the two ends of the crossbeam (700) are slidably connected to the fixed frame (6001) and the guide frame (602) respectively. The fixed base (601) has an annular cavity, in which a gear ring (6002) is rotatably installed. A drive gear (6004) and a driven gear (6005) are symmetrically rotatably connected at both ends of the annular cavity. Both the drive gear (6004) and the driven gear (6005) mesh with the gear ring (6002). A lead screw (6006) is rotatably connected to the inside of the fixed frame (6001) through a bearing. The end of the crossbeam (700) is screwed to the outside of the lead screw (6006). One end of the lead screw (6006) is connected to the driven gear (6005). A first motor (6003) is provided on the side wall of the fixed base (601). The output end of the first motor (6003) is connected to the drive gear (6004).

6. The high-precision optical thin film die-cutting device according to claim 3, characterized in that, The crossbeam (700) is provided with an adjustment assembly, the adjustment assembly comprising: The slide is located on the side wall of the crossbeam (700) and has two movable blocks (703) symmetrically slidably connected inside it. The two air source connection seats (701) are respectively set on the two movable blocks (703). A bidirectional screw (704) is rotatably connected to the slide rail via a bearing, and both ends of the two movable blocks (703) are symmetrically screwed onto both ends of the bidirectional screw (704) via threads. One end of the bidirectional screw (704) passes through the crossbeam (700) and is provided with a fixing handle (705).

7. The high-precision optical thin film die-cutting device according to claim 3, characterized in that, The nozzle (702) is provided with a threaded connector at its top end, and the air port end of the air source connector (701) is provided with a threaded connection groove that matches the threaded connector.

8. A high-precision optical thin film die-cutting device according to claim 2, characterized in that, The high-precision optical thin film die-cutting device further includes a stripping unit, which comprises: A top frame (1010) is disposed at the top of the frame (100); A support frame (1030) is provided below the top frame (1010), and an arc plate (1040) is provided at its bottom end. The bottom end of the arc plate (1040) extends between the cutter roller (500) and the second support roller (502) and is provided with a rubber column (1050). At least one telescopic rod (1020) is provided between the top of the support frame (1030) and the top frame (1010). A moving mechanism, which is located between the top frame (1010) and the support frame (1030), is used to drive the arc plate (1040) to move up and down reciprocally.

9. A high-precision optical thin film die-cutting device according to claim 8, characterized in that, The mobile mechanism includes: A connecting frame is provided on the bottom side of the top frame (1010), and a connecting shaft (1103) is connected to its bottom end through a bearing. A second bevel gear (1102) is provided at one end of the connecting shaft (1103), and a first rotating handle (1104) is provided at the other end of the connecting shaft (1103). A second rotating handle (1105) is hinged to the bottom end of the first rotating handle (1104), and the bottom end of the second rotating handle (1105) is movably connected to the support frame (1030) through a rotating shaft. The third motor (1100) is located on the top side of the top frame (1010), and its output end passes through the top frame (1010) and is connected to the first bevel gear (1101) that meshes perpendicularly with the second bevel gear (1102).

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