Asynchronous die cutting equipment and method for coiled materials

Abstract

The invention relates to the technical field of coiled material conveying, in particular to coiled material asynchronous die cutting equipment which comprises a cross asynchronous die cutting machine and an intelligent suspension conveying system used for automatically taking and placing coiled materials, a fixing frame is fixedly connected to the cross asynchronous die cutting machine, and the intelligent suspension conveying system is arranged above the fixing frame. An adjusting mechanism for adjusting the position of the convex plate is also arranged; the invention further relates to a using method of the asynchronous die cutting equipment for the coiled materials, through the arrangement of the convex plate, the mounting plate, the adjusting mechanism and other structures, the auxiliary tensioning shaft for fixing the coiled materials can be rapidly combined beside the main tensioning shaft, so that rapid expansion operation of the device is achieved, the production capacity of a single main material is reserved, and the production efficiency of the device is improved on the premise that the whole machine is not replaced. The system can be quickly expanded into double-main-material (even multi-main-material) staggered jump pasting, and achieves multiple purposes and plug and play, thereby reducing the equipment investment, shortening the line changing time and improving the order response flexibility.

Description

Technical Field

[0001] This invention relates to the field of roll material conveying technology, and in particular to an asynchronous die-cutting device and method for roll materials. Background Technology

[0002] Asynchronous die-cutting machines are the core equipment for modern roll material processing. Their working logic can be summarized as a four-step cycle of "feeding-stopping-die-cutting-re-coating". The base film runs continuously, the main material is pulled intermittently by the servo feeding roller, the cutting roller rotates once when the main material stops, cuts off and peels off the sheet, and then the pressure roller jumps the sheet onto the base film to achieve unequal spacing, thereby saving materials and increasing production capacity.

[0003] In recent years, some high-end die-cutting machines have been equipped with intelligent overhead conveyor systems, which can automatically pick up and put down rolls of material on the conveyor mechanism and complete automatic single roll replacement, significantly reducing manual intervention. However, these systems are still based on a "single feeding shaft + single servo feeding" architecture. The overhead conveyor unit can only carry one main material at a time. When the product requires two main materials, A and B, to be alternately attached (such as ABAB or AABB), the production line is still forced to stop and modify. Either an additional feeding shaft, take-up shaft and its drive components are added, which doubles the energy consumption and material consumption and requires re-adjustment of the overhead conveyor path, or a dual-axis asynchronous die-cutting machine is purchased, which brings additional investment, space occupation and debugging time, seriously reducing the profit margin of small and medium-sized orders.

[0004] Therefore, the market urgently needs a scalable asynchronous die-cutting machine to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing an asynchronous die-cutting device and method for roll materials.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an asynchronous die-cutting device for roll materials, comprising a cross asynchronous die-cutting machine and an intelligent overhead conveying system for automatically picking up and placing roll materials. A fixed frame is fixedly connected to the cross asynchronous die-cutting machine. The intelligent overhead conveying system is disposed above the fixed frame. An L-shaped frame is fixedly connected to the top of the fixed frame. A take-up shaft and a feed shaft are rotatably connected through the side walls of the L-shaped frame. Servo motors are fixedly connected to the side walls of the L-shaped frame. The output ends of the servo motors are fixedly connected to the side walls of the take-up shaft and the feed shaft, respectively. A [missing information - likely a device or equipment] is fixedly connected to the side walls of both the take-up shaft and the feed shaft. The main tensioning shaft has rectangular grooves on its side walls. The bottom of the L-shaped frame has a sliding groove. Three protruding plates are slidably connected to the inner side of the sliding groove. Each of the three protruding plates has a pair of slots at its bottom. A mounting plate is provided next to the main tensioning shaft. A disc is rotatably connected through the side wall of the mounting plate. A secondary tensioning shaft is fixedly connected to the side of the disc away from the main tensioning shaft. A rectangular block for inserting into the rectangular groove is fixedly connected to the other side of the disc. A pair of bolts are provided next to the mounting plate. A pair of inserts for inserting into the slots are fixedly connected to the top of the mounting plate. An adjustment mechanism for adjusting the position of the protruding plates is also provided.

[0007] In the above technical solution, the sidewalls of the insert blocks are all provided with threaded grooves, the sidewalls of the convex plates are all provided with through holes, and the bolts are all threadedly connected in the threaded grooves.

[0008] In the above technical solution, the inner side of the rectangular groove is provided with an upper power connection socket, and the side walls of the rectangular block are all fixedly connected with electrical connection plugs for inserting into the upper power connection sockets. The electrical connection plugs are electrically connected to the secondary tensioning shaft through wires, the upper power connection sockets are electrically connected to the main tensioning shaft through wires, the side walls of the secondary tensioning shaft are provided with connection holes, and the connection holes are provided with lower power connection sockets. The lower power connection sockets are electrically connected to the secondary tensioning shaft through wires.

[0009] In the above technical solution, furthermore, a lower position sensor is fixedly connected to the outer wall of both the take-up shaft and the unwinding shaft, and an upper position sensor is fixedly connected to the outer wall of the L-shaped frame at a position directly above the lower position sensor. The servo motor is electrically connected to the lower position sensor and the upper position sensor through a controller.

[0010] In the above technical solution, the adjustment mechanism further includes an electric telescopic cylinder, and a pair of electric telescopic cylinders are provided. Each electric telescopic cylinder is fixedly connected to the outer wall of an L-shaped frame. The top of the convex plate is fixedly connected to a base plate relative to the bottom of the L-shaped frame. A round rod is fixedly connected to the top of each base plate. A connecting plate is provided on the inner side of the L-shaped frame. An adjustment plate is fixedly connected to the bottom of the connecting plate relative to the top of the base plate. An upper vertical groove is opened through the top of the adjustment plate. An inclined groove of different lengths is opened on the side wall of the upper vertical groove. The inclined grooves are opened sequentially from longest to shortest on the adjustment plate. The shortest inclined groove is located on the side closer to the main tensioning shaft. The round rod is inserted into the inner side of the upper vertical groove. The output end of each electric telescopic cylinder passes through the inner side of the L-shaped frame and is fixedly connected to the side wall of the connecting plate. A limiting mechanism for limiting the rotation position of the disc during adjustment is also provided on the mounting plate.

[0011] In the above technical solution, furthermore, two of the inclined grooves near the main tensioning shaft are provided with lower vertical grooves, and the side ends of the lower vertical grooves are flush with the end of the other inclined groove.

[0012] In the above technical solution, a pair of upper guide rollers are rotatably connected to the front end of the side wall of the fixed frame, and a pair of lower guide rollers are rotatably connected to the rear end of the side wall of the fixed frame.

[0013] In the above technical solution, the limiting mechanism further includes a limiting rod. A movable cavity is formed inside the mounting plate relative to the upper position of the disc. A slide plate is longitudinally slidably connected to the inner side of the movable cavity. The limiting rod is fixedly connected to the slide plate, and the top end of the limiting rod is set through the top end of the mounting plate. A return spring is fixedly connected between the top end of the movable cavity and the top end of the slide plate. A limiting hole adapted to the limiting rod is formed at the top end of the disc. Top holes are formed through the top ends of the convex plate and the bottom plate. The top end of the limiting rod is set as a smooth arc surface. The side wall of the adjusting plate is inclined. During installation, the limiting rod is passed through the top hole.

[0014] A method of using an asynchronous die-cutting device for roll materials includes the following steps: Step 1: Pre-installation. First, insert the inserts on the mounting plate into the corresponding slots, and then install the mounting plate onto the protruding plate using the bolts. Step 2: Combine and lock, then control the adjustment mechanism to drive the convex plate to move towards the main tensioning shaft, while simultaneously driving the rectangular block next to the secondary tensioning shaft to insert into the rectangular groove above the main tensioning shaft, thereby realizing the rapid expansion of the device; Step 3: When changing materials, control the adjustment mechanism to run in reverse, which will separate the main tensioning shaft and the secondary tensioning shaft. Then, control the intelligent overhead conveyor system to start. Under the guidance of the vision positioning module of the intelligent overhead conveyor system, the rolls on the take-up shaft and the unwinding shaft will be taken out. Then, the roll to be die-cut will be automatically transported to the unwinding shaft. At the same time, the empty core will be placed on the take-up shaft, realizing unmanned material feeding.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through the arrangement of structures such as convex plates, mounting plates, and adjustment mechanisms, can quickly combine the secondary tensioning shaft for fixing the roll material next to the main tensioning shaft, thereby realizing rapid capacity expansion of the device. It retains the production capacity of a single main material and can be quickly expanded to double (or even multiple) main materials with staggered application without replacing the entire machine, achieving multi-purpose use and plug-and-play functionality. This reduces equipment investment, shortens line changeover time, and improves order response flexibility.

[0016] 2. By adjusting the mechanism, this invention can automatically move the secondary tensioning shaft away from the main tensioning shaft when the roll material needs to be replaced, and separate the multiple secondary tensioning shafts at equal intervals. This allows for quick removal and replacement of the roll material from the main and secondary tensioning shafts, greatly improving the convenience of subsequent material replacement. At the same time, a limit mechanism is provided to restrict the rotation position of the secondary tensioning shaft when the main and secondary tensioning shafts are separated, thereby ensuring the accuracy of subsequent automatic installation. Attached Figure Description

[0017] Figure 1 This is a front perspective view of the asynchronous die-cutting machine and intelligent overhead conveying system of the present invention; Figure 2 This is a partial bottom-view perspective view of the three-dimensional structure of the fixing frame and L-shaped frame of the present invention; Figure 3 Appendix of the present invention Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a top view of a partial appearance structure of the L-shaped frame of the present invention when it is opened; Figure 5 This is a partial three-dimensional structural diagram of the fixing frame and main tensioning shaft of the present invention; Figure 6 This is a three-dimensional structural diagram of the mounting plate and bolts of the present invention. Figure 7 This is a bottom-view perspective view of the adjustment plate and mounting plate of the present invention. Figure 8 This is a top-view perspective view of the adjustment plate and mounting plate of the present invention. Figure 9This is a schematic diagram of the three-dimensional structure of the convex plate and mounting plate separated by a partial cross-section of the present invention; Figure 10 This is a frontal perspective view of the asynchronous die-cutting machine of the present invention.

[0018] In the diagram: 1. Cross asynchronous die-cutting machine; 2. Fixing frame; 3. L-shaped frame; 4. Rewind shaft; 5. Unwind shaft; 6. Servo motor; 7. Main tensioning shaft; 8. Rectangular groove; 9. Slide groove; 10. Protruding plate; 11. Slot; 12. Mounting plate; 13. Disc; 14. Secondary tensioning shaft; 15. Rectangular block; 16. Insert block; 17. Threaded groove; 18. Through hole; 19. Bolt; 20. Power connection socket; 21. Power connection plug; 22. Lower position sensor 23. Upper position sensor; 24. Electric telescopic cylinder; 25. Base plate; 26. Round rod; 27. Connecting plate; 28. Adjusting plate; 29. ​​Upper vertical groove; 30. Inclined groove; 31. Upper guide roller; 32. Lower guide roller; 33. Limiting rod; 34. Moving cavity; 35. Slide plate; 36. Return spring; 37. Limiting hole; 38. Top hole; 39. Lower vertical groove; 40. Connecting hole; 41. Lower power connection socket; 100. Intelligent suspended conveying system. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] In practical use, it has been found that in recent years, some high-end die-cutting machines have been equipped with intelligent roll material overhead conveying systems, which can automatically pick up and put down roll materials on the conveying mechanism and complete automatic single roll replacement, significantly reducing manual intervention. However, these systems are still based on a "single feeding roller + single servo feeding" architecture. The overhead conveying unit can only carry one main material at a time. When the product requires two main materials, A and B, to be alternately attached (such as ABAB or AABB), the production line is still forced to stop and modify. Either a feeding roller, a receiving roller and its drive components are added, which doubles the energy consumption and material consumption and requires re-adjustment of the overhead conveying path, or a dual-roller asynchronous die-cutting machine is purchased, which brings additional investment, space occupation and debugging time, seriously reducing the profit margin of small and medium-sized orders. To solve the above problems, the following structure was invented.

[0022] like Figures 1-10An asynchronous die-cutting device for roll materials is shown, including a cross asynchronous die-cutting machine 1 and an intelligent overhead conveyor system 100 for automatic loading and unloading of roll materials. The intelligent overhead conveyor system 100 is set above the fixed frame 2. The intelligent overhead conveyor system 100 works in coordination with the suspension track, servo slide, vision positioning and pneumatic clamping. After the vision module identifies the center hole of the roll material, the servo slide moves precisely and descends, and the pneumatic clamp holds the shaft core. Then, the roll material is automatically transported along the track to the loading and unloading end of the die-cutting machine to complete the docking. When changing materials, the empty shaft is removed and sent back to the loading area in the reverse process. The whole process is controlled by the controller and the main controller of the die-cutting machine in real time, realizing unmanned and rhythmic handling. The cross asynchronous die-cutting machine 1 is fixedly connected to the fixed frame 2. An L-shaped frame 3 is fixedly connected to the top of the fixed frame 2. A take-up shaft 4 and a feed shaft 5 are rotatably connected through the side walls of the L-shaped frame 3. A servo motor 6 is fixedly connected to the side walls of the L-shaped frame 3. The output end of the servo motor 6 is fixedly connected to the side walls of the take-up shaft 4 and the feed shaft 5. A main tension shaft 7 is fixedly connected to the side walls of the take-up shaft 4 and the feed shaft 5. When the roll material is die-cut, the roll material is clamped on the main tension shaft 7 next to the feed shaft 5. Then the roll material passes under the die-cutting mechanism of the cross asynchronous die-cutting machine 1 and is wound on the main tension shaft 7 next to the take-up shaft 4. At the same time, the bottom film passes through the lower tube of the die-cutting mechanism and is wound on the take-up mechanism. During operation, the bottom film moves continuously while the main material stops-moves-stops. The die-cutting is completed by cutting only the main material and peeling it off. The pressure rollers stick the sheet material onto the moving bottom film, realizing asynchronous die-cutting with unequal spacing and rewinding the bottom film at one time, thereby achieving the purpose of saving material.

[0023] The main tensioning shaft 7 has rectangular grooves 8 on its side walls, and the L-shaped frame 3 has a sliding groove 9 at its bottom. Three protruding plates 10 are slidably connected inside the sliding groove 9. Each of the three protruding plates 10 has a pair of slots 11 at its bottom. A mounting plate 12 is provided next to the main tensioning shaft 7. A disc 13 is rotatably connected through the side wall of the mounting plate 12. A secondary tensioning shaft 14 is fixedly connected to the side of the disc 13 away from the main tensioning shaft 7. A rectangular block 15 for inserting into the rectangular groove 8 is fixedly connected to the other side of the disc 13. A pair of bolts 19 are provided next to the mounting plate 12. A pair of inserts 16 for inserting into the slots 11 are fixedly connected to the top of the mounting plate 12. An adjustment mechanism for adjusting the position of the protruding plates 10 is also provided. The sidewalls of the insert block 16 are all provided with threaded grooves 17, the sidewalls of the protrusion plate 10 are all provided with through holes 18, and the bolts 19 are all threaded into the threaded grooves 17. The adjustment mechanism includes an electric telescopic cylinder 24, and there is a pair of electric telescopic cylinders 24. Each electric telescopic cylinder 24 is fixedly connected to the outer wall of the L-shaped frame 3. The top of the convex plate 10 is fixedly connected to the bottom of the L-shaped frame 3. The top of the bottom plate 25 is fixedly connected to the round rod 26. The inner side of the L-shaped frame 3 is provided with a connecting plate 27. The bottom of the connecting plate 27 is fixedly connected to the top of the bottom plate 25. The top of the adjusting plate 28 is provided with an upper vertical groove 29. The side wall of the upper vertical groove 29 is provided with inclined grooves 30 of different lengths. The inclined grooves 30 are opened on the adjusting plate 28 in descending order of length. The shortest inclined groove 30 is located on the side closer to the main tensioning shaft 7. The round rod 26 is inserted into the inner side of the upper vertical groove 29. The output end of the electric telescopic cylinder 24 passes through the inner side of the L-shaped frame 3 and is fixedly connected to the side wall of the connecting plate 27. The mounting plate 12 is also provided with a limiting mechanism for limiting the rotation position of the disc 13 during adjustment. Two of the inclined grooves 30 near the main tensioning shaft 7 have lower vertical grooves 39 on their side ends, and the side ends of the lower vertical grooves 39 are flush with the end of the other inclined groove 30. A pair of upper guide rollers 31 are rotatably connected to the front end of the side wall of the fixed frame 2, and a pair of lower guide rollers 32 are rotatably connected to the rear end of the side wall of the fixed frame 2. The setting of the upper guide rollers 31 and the lower guide rollers 32 can guide the roll material. When changing the product and needing to produce a product with two main materials overlapping, first stop the equipment. First, control the intelligent overhead conveyor system 100 to place the roll material on the main tensioning shaft 7. Then, remove the expansion component with the secondary tensioning shaft 14 from the mounting plate 12. Next, control the electric telescopic cylinder 24 to start and push the connecting plate 27 and the adjusting plate 28 to move. At this time, the round rod 26 will move in the upper vertical groove 29. Then the adjusting plate 28 will continue to move. When the round rod 26 moves into the inclined groove 30, as the adjusting plate 28 continues to move, since the round rod 26 is fixed on the bottom plate 25 and the convex plate 10, and the convex plate 10 can only move laterally in the sliding groove 9, the inclined groove 30 will squeeze the round rod 26 to move laterally. At the same time, it will drive the convex plate 10 to slide in the sliding groove 9, thereby driving the convex plate 10 to move away from the main tensioning shaft 7 (during installation, squeeze the convex plate 10 to move it to the position where the secondary tensioning shaft 14 can be installed). Then the expansion component can be removed, and the insert block 16 on the mounting plate 12 can be inserted into the corresponding slot 11. Then the bolt 19 is threaded through the through hole 18 and connected to the threaded groove 17 to fix the position of the mounting plate 12. Then the electric telescopic cylinder 24 is controlled to move in the opposite direction, and the above operation is repeated in the opposite direction to squeeze the round rod 26 back. At the same time, the convex plate 10 is reset, and the mounting plate 12 and the secondary tensioning shaft 14 are moved towards the main tensioning shaft 7. Then the rectangular block 15 next to the mounting plate 12 will be inserted into the corresponding rectangular groove 8, thereby realizing the quick docking between the main tensioning shaft 7 and the secondary tensioning shaft 14. Finally, the intelligent overhead conveyor system 100 can be controlled to place another roll of material on the secondary tensioning shaft 14. Then, the worker installs the corresponding die-cutting blade on the die-cutting mechanism of the cross asynchronous die-cutting machine 1. Then, the main tensioning shaft 7 and the secondary tensioning shaft 14 are started to tighten and fix the roll of material, so that the roll of material can be threaded. After the material is threaded, the equipment is started to perform die-cutting. It is important to note that the winding speed of the bottom film needs to be adjusted to ensure that the two main materials can be die-cut and pasted on the bottom film in an alternating manner. The inner side of the rectangular slot 8 is provided with an upper power connection socket 20. The side walls of the rectangular block 15 are all fixedly connected with electrical connection plugs 21 for inserting into the upper power connection socket 20. The electrical connection plugs 21 are electrically connected to the secondary tensioning shaft 14 through wires. The upper power connection socket 20 is electrically connected to the main tensioning shaft 7 through wires. The side wall of the secondary tensioning shaft 14 is provided with a connection hole 40. The connection hole 40 is provided with a lower power connection socket 41. The lower power connection socket 41 is electrically connected to the secondary tensioning shaft 14 through wires. Through the setting of the upper power connection socket 20 and the electrical connection plug 21, an electrical connection can be made between the secondary tensioning shaft 14 and the main tensioning shaft 7 when they are docked. This ensures that when the controller controls the main tensioning shaft 7 to start or stop, the secondary tensioning shaft 14 also receives the signal and starts or stops. This ensures that the equipment runs simultaneously without the need for debugging during expansion, greatly improving the convenience of the device. When further expansion is needed, the above operation can be repeated to install the expansion component on the subsequent convex plate 10. Then, when the electric telescopic cylinder 24 is reset, it will drive the expansion rectangular block 15 to insert into the connecting hole 40 on the secondary tensioning shaft 14. Lower position sensors 22 are fixedly connected to the outer walls of both the take-up shaft 4 and the unwind shaft 5. Upper position sensors 23 are fixedly connected to the outer wall of the L-shaped frame 3 at a position directly above the lower position sensors 22. The servo motor 6 is electrically connected to the lower position sensors 22 and the upper position sensors 23 through the controller. The upper position sensors 23 and the lower position sensors 22 are cylindrical inductive proximity switches (such as LJ8A3-2-Z / BX). Their working principle is that when the servo motor 6 controls the rotation of the take-up shaft 4 or the unwind shaft 5, the metal target surface at its end rotates with the shaft. When the machine needs to be stopped, when the target surface reaches directly below the upper position sensor 23, the sensor outputs a low-level signal, and the controller immediately cuts off the power supply to the servo motor 6, causing the corresponding shaft to stop. This ensures that the take-up shaft 4 and the unwind shaft 5 stop at the initial mechanical zero position each time, thereby ensuring that the subsequent limit rod 33 is accurately inserted into the limit hole 37.

[0024] In summary, the above structural design allows for the rapid assembly of the secondary tensioning shaft 14, which fixes the roll material, next to the main tensioning shaft 7. This enables rapid capacity expansion of the device, preserving the production capacity of a single main material while allowing for rapid expansion to dual (or even multiple) main material staggered application without replacing the entire machine. This achieves multi-purpose functionality and plug-and-play capability, thereby reducing equipment investment, shortening line changeover time, and improving order response flexibility.

[0025] Based on the above embodiments, it was found during use that after the roll material is used up, the roll material on the main tensioning shaft 7 and the secondary tensioning shaft 14 needs to be replaced. Therefore, the main tensioning shaft 7 and the secondary tensioning shaft 14 need to be separated to replace the roll material. If the rotation position of the secondary tensioning shaft 14 is not rotated at this time, it will affect the normal assembly of the subsequent device. In order to solve the above problem, the above structure has been further improved.

[0026] The limiting mechanism includes a limiting rod 33. A movable cavity 34 is provided inside the mounting plate 12 at a position above the disc 13. A slide plate 35 is longitudinally slidably connected to the inner side of the movable cavity 34. The limiting rod 33 is fixedly connected to the slide plate 35, and the top of the limiting rod 33 is provided through the top of the mounting plate 12. A return spring 36 is fixedly connected between the top of the movable cavity 34 and the top of the slide plate 35. A limiting hole 37 adapted to the limiting rod 33 is provided at the top of the disc 13. A top hole 38 is provided through the top of both the convex plate 10 and the bottom plate 25. The top of the limiting rod 33 is set as a smooth arc surface. The side wall of the adjusting plate 28 is inclined. During installation, the limiting rod 33 is passed through the top hole 38. When the mounting plate 12 mates with the protruding plate 10, the limiting rod 33 needs to be pressed and inserted into the limiting hole 37 on the disc 13 to restrict the rotation position of the secondary tensioning shaft 14. Then, during the mating, the limiting rod 33 is quickly inserted into the top hole 38. At this time, the limiting rod 33 will move below the adjusting plate 28 and be restricted, so it can be inserted into the limiting hole 37. During the process of passing through the top hole 38, the limiting rod 33 will move out of the limiting hole 37. If the secondary tensioning shaft 14 is displaced, the insert block 16 cannot be fully inserted into the slot 11. At this time, the limiting rod 33 can be inserted into the limiting hole 37 by rotating the secondary tensioning shaft 14. Then, during the subsequent reset operation of the electric telescopic cylinder 24, the adjusting plate 28 will gradually move out of the limiting rod 33, and then the pressure on the limiting rod 33 will be released. At this time, under the elastic force of the reset spring 36, the sliding plate 35 and the limiting rod 33 will be pushed upward, so that the limiting rod 33 will move out of the limiting hole 37, releasing the restriction on the disc 13. Then, when the servo motor 6 drives the main tensioning shaft 7 to rotate, it will drive the secondary tensioning shaft 14 to rotate together. Subsequently, when the roll material needs to be replaced, the electric telescopic cylinder 24 can be controlled to start and push the connecting plate 27 and the adjusting plate 28 to move. At the same time, the inclined surface of the side end of the adjusting plate 28 will first squeeze the arc surface at the top of the limiting rod 33. The through groove squeezes the limiting rod 33 to move downward and insert it into the corresponding limiting hole 37. At the same time, the return spring 36 is compressed to limit the rotation position of the secondary tensioning shaft 14. During this process, the movement of the adjusting plate 28 causes the round rod 26 to move within the upper vertical groove 29. The adjusting plate 28 then continues to move. When the round rod 26 moves into the inclined groove 30, the inclined groove 30 compresses the round rod 26, causing it to move laterally. Simultaneously, the convex plate 10 slides within the sliding groove 9, thus moving the convex plate 10 away from the main tensioning shaft 7. During this process, the round rod 26 closest to the main tensioning shaft 7 will first slide out of the shortest inclined groove 30 and into the lower vertical groove. Inside groove 39, the second round rod 26 then slides into the second lower vertical groove 39 (at this time, the first round rod 26 will continue to move in the first lower vertical groove 39). Then the third round rod 26 moves to the end of the longest inclined groove 30, which will separate the multiple protruding plates 10 at equal distances and separate the secondary tensioning shaft 14 from the main tensioning shaft 7, thereby facilitating the removal of the roll material for replacement. Finally, the intelligent suspension conveying system 100 is controlled to start replacing multiple roll materials and cores. After the replacement is completed, the electric telescopic cylinder 24 is controlled to reset.

[0027] In summary, the above structural design allows for the automatic removal of the secondary tensioning shaft 14 from the main tensioning shaft 7 when the roll material needs to be replaced, and the multiple secondary tensioning shafts 14 are equidistantly separated. This enables the quick removal and replacement of the roll material from the main tensioning shaft 7 and the secondary tensioning shaft 14, greatly improving the convenience of subsequent material replacement. Furthermore, the inclusion of a limiting mechanism restricts the rotational position of the secondary tensioning shaft 14 when the main tensioning shaft 7 and the secondary tensioning shaft 14 are separated, thereby ensuring accuracy during subsequent automatic installation.

[0028] A method of using an asynchronous die-cutting device for roll materials includes the following steps: Step 1: Pre-installation. First, insert the plug 16 on the mounting plate 12 into the corresponding slot 11, and then install the mounting plate 12 on the protruding plate 10 with the bolts 19. Step 2: Combine and lock, then control the adjustment mechanism to drive the convex plate 10 to move towards the main tensioning shaft 7, while simultaneously driving the rectangular block 15 next to the secondary tensioning shaft 14 to insert into the rectangular groove 8 above the main tensioning shaft 7, thereby realizing the rapid expansion of the device; Step 3: When changing materials, control the adjustment mechanism to run in reverse, which will separate the main tensioning shaft 7 and the secondary tensioning shaft 14. Then, control the intelligent overhead conveyor system 100 to start. Under the guidance of the vision positioning module of the intelligent overhead conveyor system 100, the rolls on the take-up shaft 4 and the unloading shaft 5 will be taken out. Then, the roll to be die-cut will be automatically transported to the unloading shaft 5. At the same time, the empty core will be placed on the take-up shaft 4, realizing unmanned material feeding.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0030] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. An asynchronous die-cutting device for roll materials, comprising a cross asynchronous die-cutting machine (1) and an intelligent overhead conveying system (100) for automatically picking up and placing roll materials, characterized in that: A fixed frame (2) is fixedly connected to the cross asynchronous die-cutting machine (1). The intelligent suspension conveying system (100) is set above the fixed frame (2). An L-shaped frame (3) is fixedly connected to the top of the fixed frame (2). A winding shaft (4) and a feeding shaft (5) are respectively rotatably connected through the side walls of the L-shaped frame (3). A servo motor (6) is fixedly connected to the side walls of the L-shaped frame (3). The output end of the servo motor (6) is fixedly connected to the side walls of the winding shaft (4) and the feeding shaft (5). A main tensioning shaft (7) is fixedly connected to the side walls of the winding shaft (4) and the feeding shaft (5). A rectangular groove (8) is opened on the side wall of the main tensioning shaft (7). A sliding groove (9) is opened at the bottom of the L-shaped frame (3). Three protruding plates (10) are slidably connected to the inside of the slide groove (9). Each of the three protruding plates (10) has a pair of slots (11) at its bottom. A mounting plate (12) is provided next to the main tensioning shaft (7). A disc (13) is rotatably connected through the side wall of the mounting plate (12). A secondary tensioning shaft (14) is fixedly connected to the side of the disc (13) away from the main tensioning shaft (7). A rectangular block (15) for inserting into the rectangular slot (8) is fixedly connected to the other side of the disc (13). A pair of bolts (19) are provided next to the mounting plate (12). A pair of inserts (16) for inserting into the slots (11) are fixedly connected to the top of the mounting plate (12). An adjustment mechanism for adjusting the position of the protruding plates (10) is also provided.

2. The asynchronous die-cutting equipment for roll materials according to claim 1, characterized in that: The sidewalls of the insert (16) are all provided with threaded grooves (17), the sidewalls of the protrusion (10) are all provided with through holes (18), and the bolts (19) are all threaded into the threaded grooves (17).

3. The asynchronous die-cutting equipment for roll materials according to claim 1, characterized in that: The inner side of the rectangular groove (8) is provided with an upper power connection socket (20). The side walls of the rectangular block (15) are all fixedly connected with an electrical connection plug (21) for inserting into the upper power connection socket (20). The electrical connection plug (21) is electrically connected to the secondary tensioning shaft (14) through a wire. The upper power connection socket (20) is electrically connected to the main tensioning shaft (7) through a wire. The side wall of the secondary tensioning shaft (14) is provided with a connection hole (40). The connection hole (40) is provided with a lower power connection socket (41). The lower power connection socket (41) is electrically connected to the secondary tensioning shaft (14) through a wire.

4. The asynchronous die-cutting equipment for roll materials according to claim 1, characterized in that: The outer walls of the winding shaft (4) and the unwinding shaft (5) are both fixedly connected to a lower position sensor (22). The outer wall of the L-shaped frame (3) is fixedly connected to an upper position sensor (23) at a position directly above the lower position sensor (22). The servo motor (6) is electrically connected to the lower position sensor (22) and the upper position sensor (23) through a controller.

5. The asynchronous die-cutting equipment for roll materials according to claim 1, characterized in that: The adjustment mechanism includes an electric telescopic cylinder (24), and a pair of electric telescopic cylinders (24) are provided. Each electric telescopic cylinder (24) is fixedly connected to the outer wall of an L-shaped frame (3). The top of the convex plate (10) is fixedly connected to a base plate (25) at a position relative to the bottom of the inner side of the L-shaped frame (3). The top of the base plate (25) is fixedly connected to a round rod (26). A connecting plate (27) is provided on the inner side of the L-shaped frame (3). The bottom of the connecting plate (27) is fixedly connected to an adjusting plate (28) at a position relative to the top of the base plate (25). The top of the adjusting plate (28) passes through... An upper vertical groove (29) is provided, and the side wall of the upper vertical groove (29) is provided with inclined grooves (30) of different lengths. The inclined grooves (30) are provided on the adjusting plate (28) in descending order of length, and the shortest inclined groove (30) is located on the side close to the main tensioning shaft (7). The round rod (26) is inserted into the inner side of the upper vertical groove (29). The output end of the electric telescopic cylinder (24) passes through the inner side of the L-shaped frame (3) and is fixedly connected to the side wall of the connecting plate (27). The mounting plate (12) is also provided with a limiting mechanism for limiting the rotation position of the disc (13) during adjustment.

6. The asynchronous die-cutting equipment for roll materials according to claim 5, characterized in that: Two of the inclined grooves (30) near the main tensioning shaft (7) have lower vertical grooves (39) on their side ends, and the side ends of the lower vertical grooves (39) are flush with the end of the other inclined groove (30).

7. The asynchronous die-cutting equipment for roll materials according to claim 1, characterized in that: A pair of upper guide rollers (31) are rotatably connected to the front end of the side wall of the fixed frame (2), and a pair of lower guide rollers (32) are rotatably connected to the rear end of the side wall of the fixed frame (2).

8. The asynchronous die-cutting equipment for roll materials according to claim 5, characterized in that: The limiting mechanism includes a limiting rod (33). The mounting plate (12) has a moving cavity (34) located above the disc (13). A sliding plate (35) is longitudinally slidably connected to the inside of the moving cavity (34). The limiting rod (33) is fixedly connected to the sliding plate (35), and the top of the limiting rod (33) is set through the top of the mounting plate (12). A return spring (36) is fixedly connected between the top of the moving cavity (34) and the top of the sliding plate (35). The top of the disc (13) has a limiting hole (37) that matches the limiting rod (33). The tops of the convex plate (10) and the bottom plate (25) both have a top hole (38). The top of the limiting rod (33) is set as a smooth arc surface. The side wall of the adjusting plate (28) is inclined. During installation, the limiting rod (33) is passed through the top hole (38).

9. A method of using an asynchronous die-cutting device for roll materials, the method being applicable to the asynchronous die-cutting device for roll materials as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Pre-installation. First, insert the plug (16) on the mounting plate (12) into the corresponding slot (11), and then install the mounting plate (12) on the protruding plate (10) by means of the bolt (19). Step 2: Combine and lock, then control the adjustment mechanism to drive the convex plate (10) to move towards the main tensioning shaft (7), and at the same time drive the rectangular block (15) next to the secondary tensioning shaft (14) to insert into the rectangular groove (8) above the main tensioning shaft (7), thereby realizing the rapid expansion of the device; Step 3: When changing materials, control the adjustment mechanism to run in reverse, so that the main tensioning shaft (7) and the secondary tensioning shaft (14) can be separated. Then, control the intelligent suspension conveying system (100) to start. Under the guidance of the vision positioning module of the intelligent suspension conveying system (100), the roll on the take-up shaft (4) and the unloading shaft (5) can be taken out. Then, the roll to be die-cut is automatically transported to the unloading shaft (5). At the same time, the empty core is placed on the take-up shaft (4) to realize unmanned material feeding.

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