Automatic cutting and winding device for a winding machine

Abstract

The utility model discloses an automatic cutting and winding device for winding machine, it is used for with winding machine cooperation uses, it includes moving frame, mobile drive mechanism, press roll, tensioning roller and cutting mechanism, wherein, the moving frame is along the front -back direction sliding arrangement and has initial position and working position in the sliding process, mobile drive mechanism is connected with moving frame and is used for driving moving frame moves between initial position and working position, tensioning roller is connected on moving frame and is used for the sheet that resists cutting to make sheet tension, cutting mechanism is connected on moving frame and is used for cutting off the sheet that resists the sheet of tensioning roller, the utility model can resist the sheet when cutting off the sheet to make sheet keep steady tension, can avoid the problem that the incision explodes, uneven when cutting off the sheet, can make the incision even sheet keep everywhere tension stable and consistent when winding, can improve the quality of sheet winding.

Description

Technical Field

[0001] This utility model relates to an automatic cutting and winding device for a winding machine. Background Technology

[0002] Currently, a dual-station winding machine is an automated winding device with two winding shafts. The two winding shafts can switch positions to take turns winding the sheet. After one winding shaft finishes winding, the positions of the two winding shafts need to be swapped, and then the sheet is wound up again using the other winding shaft. In the prior art, when switching winding shafts, a cutting and winding device is needed to cut the sheet and rewind the cut sheet onto the winding shaft to be wound. For example, Chinese patent CN219031196U discloses an automatic winding, cutting, and winding device for plastic sheets. In this device, when switching winding shafts, a cutter is driven to move to cut the sheet, and then a wrapping roller is driven to rotate to wind the cut sheet onto the winding shaft to be wound. However, in actual use, it was found that when the cutter cuts the sheet, the insufficient tension of the sheet often causes the cut to crack or become uneven. When the sheet with uneven cut is wrapped around the winding shaft to be wound up, the tension of the sheet will be inconsistent and unstable at different points during winding, which will result in poor quality of sheet winding. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an automatic cutting and winding device for a winding machine. It can press the sheet tightly when cutting the sheet to keep the sheet under stable tension, thereby avoiding the problems of cracking and unevenness of the cut when cutting the sheet. It can also keep the tension of the sheet with a flat cut stable and consistent throughout the winding process, thereby improving the quality of sheet winding.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: an automatic cutting and winding device for a winding machine, which is used in conjunction with the winding machine, and includes a moving frame, a moving drive mechanism, a pressure roller, a tension roller and a cutting mechanism.

[0005] The mobile frame is slidably arranged in the front-to-back direction and has an initial position and a working position during the sliding process;

[0006] The moving drive mechanism is connected to the moving frame and is used to drive the moving frame to move between the initial position and the working position;

[0007] The pressure roller is connected to the movable frame and is used to press the sheet against the paper core on the winding shaft to be wound in the winding machine when the movable frame moves to the working position;

[0008] The tensioning roller is connected to the movable frame and is used to press against the sheet to be cut to tension the sheet when the movable frame moves to the working position.

[0009] The cutting mechanism is connected to the movable frame and is used to cut the sheet material pressed against by the tension roller when the movable frame moves to the working position.

[0010] Furthermore, the automatic cutting and winding device for the winding machine also includes a left turntable, a right turntable, a wrapping roller, a pressing drive mechanism, and a rotary drive mechanism;

[0011] The left and right turntables are coaxially rotatably connected to the movable frame. The left turntable has a left opening slot, and the right turntable has a right opening slot. When the movable drive mechanism drives the movable frame to the working position, the left opening slot engages with the left end of the take-up shaft to be wound, and the right opening slot engages with the right end of the take-up shaft to be wound. The rotation centers of the left and right turntables are both aligned with the center line of the take-up shaft to be wound. When the movable drive mechanism drives the movable frame to the initial position, the left and right opening slots are separated from the take-up shaft to be wound.

[0012] The wrapping roller is connected to the pressing drive mechanism, which is connected to the left turntable and the right turntable and is used to drive the wrapping roller to move onto the paper core that presses the sheet onto the winding shaft to be wound when the moving frame moves to the working position;

[0013] The rotary drive mechanism is connected to the movable frame and is connected to the left turntable and the right turntable respectively. The rotary drive mechanism is used to drive the left turntable and the right turntable to rotate after the sheet is cut, thereby driving the wrapping roller to rotate around the paper core so that the wrapping roller drives one end of the cut sheet to wrap and adhere to the paper core.

[0014] Further, a specific structure of the clamping drive mechanism is provided, the clamping drive mechanism including a left clamping cylinder, a right clamping cylinder and mounting components;

[0015] The left clamping cylinder is connected to the left turntable, and the right clamping cylinder is connected to the right turntable;

[0016] The wrapping roller is rotatably connected to the mounting component;

[0017] The left and right clamping cylinders are respectively connected to the mounting component and are used to drive the mounting component to move, thereby driving the wrapping roller to move onto the paper core that presses the sheet onto the winding shaft to be wound up.

[0018] Furthermore, the mounting component is a mounting shaft, the wrapping roller is rotatably connected to the mounting shaft, the left pressing cylinder is connected to the left end of the mounting shaft, and the right pressing cylinder is connected to the right end of the mounting shaft.

[0019] Furthermore, the automatic cutting and winding device for the winding machine also includes detection sensors and a controller;

[0020] The detection sensor is connected to at least one of the left turntable and the right turntable and is used to detect the sheet that has not yet been wrapped and adhered to the paper core during the process in which the wrapping roller rotates around the paper core and drives the cut sheet to wrap and adhere to the paper core.

[0021] The detection sensor is connected to the controller and is used to send a stop signal to the controller when the sheet is not detected. The controller is connected to the rotary drive mechanism and is used to control the rotary drive mechanism to stop driving the left and right turntables to rotate according to the stop signal.

[0022] Further, a specific structure of the rotary drive mechanism is provided, the rotary drive mechanism including a power component, a drive shaft, a left drive gear and a right drive gear;

[0023] The outer periphery of the left turntable is provided with a left gear portion, and the outer periphery of the right turntable is provided with a right gear portion;

[0024] The drive shaft is rotatably connected to the movable frame, the left drive gear is connected to the drive shaft and meshes with the left gear part, and the right drive gear is connected to the drive shaft and meshes with the right gear part;

[0025] The power unit is connected to the movable frame, and the power unit is connected to the drive shaft and is used to drive the drive shaft to rotate, thereby driving the left turntable to rotate through the left drive gear and driving the right turntable to rotate through the right drive gear.

[0026] Further, a specific structure of the cutting mechanism is provided, the cutting mechanism including a linear module, a cutter, and a cutter holder;

[0027] The cutter is connected to the cutter holder;

[0028] The tool holder is connected to the linear module;

[0029] The linear module is connected to the movable frame and is used to drive the cutter on the cutter holder to move along the width direction of the sheet so that the cutter cuts the sheet pressed against by the tension roller.

[0030] Furthermore, the movable frame is slidably connected to the frame in the front-to-back direction, and a flattening roller is also connected to the frame. The sheet is wound around the paper core on the take-up shaft after passing over the flattening roller.

[0031] Furthermore, a traction assembly is also connected to the frame, and the sheet passes through the traction assembly, goes around the flattening roller, and then winds around the paper core connected to the take-up shaft.

[0032] Further, a specific structure of the movable frame is provided, the movable frame including a left wall panel, a right wall panel, a crossbeam, a first connecting shaft, and a second connecting shaft;

[0033] The left wall panel and the right wall panel are slidably connected to the frame in the front-to-back direction, respectively;

[0034] One end of the crossbeam is connected to the left wall panel, and the other end of the crossbeam is connected to the right wall panel;

[0035] One end of the first connecting shaft is connected to the left wall panel, and the other end of the first connecting shaft is connected to the right wall panel;

[0036] One end of the second connecting shaft is connected to the left wall panel, and the other end of the second connecting shaft is connected to the right wall panel;

[0037] The pressure roller is rotatably connected to the first connecting shaft, and the tension roller is rotatably connected to the second connecting shaft.

[0038] By adopting the above technical solution, the moving drive mechanism is used to drive the moving frame to the working position after the winding machine completes winding. At this time, the pressure roller will press the sheet tightly onto the paper core on the winding shaft to be wound in the winding machine, and the tension roller will press against the sheet to be cut to make the sheet tensile. At this time, the sheet can maintain stable and sufficient tension, and then the cutting mechanism can cut the sheet pressed against by the tension roller. Since the sheet maintains stable and sufficient tension when it is cut, the problem of cracking and unevenness of the cut can be avoided when cutting the sheet, and the cut can be neat and straight. This allows the sheet with a flat cut to maintain stable and consistent tension in all places during subsequent winding, which is conducive to improving the quality of sheet winding and greatly facilitating subsequent processing. Attached Figure Description

[0039] Figure 1 This is a perspective view of the automatic cutting and winding device for a winding machine according to the present invention.

[0040] Figure 2 for Figure 1 Detailed view of part A in the middle;

[0041] Figure 3This is a schematic diagram of the structure of the automatic cutting and winding device for a winding machine of this utility model when the moving frame is in the initial position;

[0042] Figure 4 This is a schematic diagram of the structure of the automatic cutting and winding device for a winding machine of this utility model when the movable frame is in the working position;

[0043] Figure 5 This is a schematic diagram of the cutting mechanism of this utility model when cutting the sheet material;

[0044] Figure 6 This is a schematic diagram of the structure of the present invention, in which the wrapping roller drives the sheet material to wrap and adhere to the paper tube core;

[0045] In the diagram: 1. Moving frame; 2. Moving drive mechanism; 3. Pressure roller; 4. Tension roller; 5. Cutting mechanism; 6. Sheet; 7. Rewinding shaft; 8. Paper core; 9. Left turntable; 10. Right turntable; 11. Sheet wrapping roller; 12. Left opening slot; 13. Right opening slot; 14. Rotary seat; 15. Left clamping cylinder; 16. Right clamping cylinder; 17. Mounting component; 18. Detection sensor; 19. Power component; 20. Drive shaft; 21. Left drive gear; 22. Linear module; 23. Cutter; 24. Knife holder; 25. Frame; 26. Flattening roller; 27. Traction assembly; 28. Left wall panel; 29. ​​Right wall panel; 30. Crossbeam; 31. Second connecting shaft; 32. Left gear section; 33. Right gear section. Detailed Implementation

[0046] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0047] like Figures 1-6 As shown, an automatic cutting and winding device for a winding machine is used in conjunction with the winding machine. It includes a moving frame 1, a moving drive mechanism 2, a pressure roller 3, a tension roller 4, and a cutting mechanism 5.

[0048] The mobile frame 1 is slidably arranged in the front-to-back direction and has an initial position and a working position during the sliding process;

[0049] The mobile drive mechanism 2 is connected to the mobile frame 1 and is used to drive the mobile frame 1 to move between the initial position and the working position;

[0050] The pressure roller 3 is connected to the movable frame 1 and is used to press the sheet 6 onto the paper core 8 on the winding shaft 7 to be wound in the winding machine when the movable frame 1 moves to the working position.

[0051] The tensioning roller 4 is connected to the movable frame 1 and is used to press against the sheet 6 to be cut so that the sheet 6 is tensioned when the movable frame 1 moves to the working position.

[0052] The cutting mechanism 5 is connected to the movable frame 1 and is used to cut the sheet 6 pressed against by the tension roller 4 when the movable frame 1 moves to the working position. Specifically, the moving drive mechanism 2 is used to drive the movable frame 1 to the working position after the winding machine completes winding. At this time, the pressure roller 3 will press the sheet 6 against the paper core 8 on the winding shaft 7 to be wound in the winding machine, and the tension roller 4 will press against the sheet 6 to be cut to make the sheet 6 tensioned. At this time, the sheet 6 can maintain stable and sufficient tension, and then the cutting mechanism 5 can cut the sheet 6 pressed against by the tension roller 4. Since the sheet 6 maintains stable and sufficient tension when it is cut, the problem of cracking and unevenness of the cut can be avoided when cutting the sheet 6, and the cut can be neat and straight. This allows the sheet 6 with a flat cut to maintain stable and consistent tension in various places during subsequent winding, which is beneficial to improving the winding quality of the sheet 6 and greatly facilitating the subsequent processing.

[0053] like Figures 1-6 As shown, the automatic cutting and winding device for the winding machine may further include a left turntable 9, a right turntable 10, a wrapping roller 11, a pressing drive mechanism, and a rotary drive mechanism.

[0054] The left turntable 9 and the right turntable 10 are coaxially rotatably connected to the movable frame 1. The left turntable 9 is provided with a left opening slot 12, and the right turntable 10 is provided with a right opening slot 13. When the movable drive mechanism 2 drives the movable frame 1 to the working position, the left opening slot 12 engages with the left end of the take-up shaft 7 to be wound up, and the right opening slot 13 engages with the right end of the take-up shaft 7 to be wound up. The rotation centers of the left turntable 9 and the right turntable 10 are both coincident with the center line of the take-up shaft 7 to be wound up. When the movable drive mechanism 2 drives the movable frame 1 to the initial position, the left opening slot 12 and the right opening slot 13 are both separated from the take-up shaft 7 to be wound up.

[0055] The wrapping roller 11 is connected to the pressing drive mechanism, which is connected to the left turntable 9 and the right turntable 10 and is used to drive the wrapping roller 11 to move to the paper core 8 that presses the sheet 6 onto the winding shaft 7 to be wound up when the moving frame 1 moves to the working position.

[0056] The rotary drive mechanism is connected to the movable frame 1 and is connected to the left turntable 9 and the right turntable 10 respectively. The rotary drive mechanism is used to drive the left turntable 9 and the right turntable 10 to rotate after the sheet 6 is cut, thereby driving the wrapping roller 11 to rotate around the paper core 8 so that the wrapping roller 11 drives one end of the cut sheet 6 to wrap and adhere to the paper core 8.

[0057] Specifically, the specific structure of the winding machine is prior art well known to those skilled in the art. The winding machine has a rotating base 14 and two winding shafts 7 connected to the rotating base 14, such as... Figure 3 As shown, after the take-up shaft 7 on the right side completes its winding, the rotating base 14 will rotate 180° to the position shown. Figure 4 In the state shown, the winding shaft 7 that has completed winding rotates to the left and the winding shaft 7 to be wound rotates to the right, with a paper core 8 pre-installed on the winding shaft 7 to be wound. Then, the moving drive mechanism 2 drives the moving frame 1 to the working position. At this time, the left end of the winding shaft 7 to be wound will engage with the left opening slot 12 and the right end of the winding shaft 7 to be wound will engage with the right opening slot 13. At this time, the rotation centers of the left turntable 9 and the right turntable 10 are both aligned with the center line of the winding shaft 7 to be wound. At this time, the pressure roller 3 will press the sheet 6 onto the paper core 8 on the winding shaft 7 to be wound, and the tension roller 4 will press against the sheet 6 to be cut to keep the sheet 6 taut and maintain stable and sufficient tension. The pressing drive mechanism will drive the wrapping roller 11 to move upward to position so as to press the sheet 6 onto the paper core 8 on the winding shaft 7 to be wound. The state at this time is as follows. Figure 4 As shown. Then, the cutting mechanism 5 cuts the sheet 6 pressed against by the tension roller 4. Because the sheet 6 maintains stable and sufficient tension when being cut, problems such as cracking and unevenness at the cut are avoided. After the sheet 6 is cut, the winding shaft 7, which has completed winding, is driven to continue rotating a certain number of times to completely wind up the sheet 6 remaining at the tail. At the same time, the cut sheet 6 to be wound needs to be wrapped and adhered to the paper core 8 on the winding shaft 7. At this time, as shown... Figure 5 , 6As shown, the rotary drive mechanism drives the left turntable 9 and the right turntable 10 to rotate, thereby causing the wrapping roller 11 to rotate around the paper core 8 so that the wrapping roller 11 can wrap the cut sheet 6 onto the paper core 8. Then, the take-up shaft 7 to be wound is driven to rotate several times, thereby causing the paper core 8 to rotate several times so that the sheet 6 to be wound is wound around the paper core 8. Then, the rotary drive mechanism drives the left turntable 9 and the right turntable 10 to rotate in opposite directions to reset to the starting angle. Then, the pressing drive mechanism drives the wrapping roller 11 to move downward to release the sheet 6 wrapped around the paper core 8. Then, the moving drive mechanism 2 drives the moving frame 1 to move back to the initial position so that the left opening slot 12 and the right opening slot 13 are separated from the take-up shaft 7 to be wound. Then, the take-up shaft 7 to be wound can be driven to rotate continuously, thereby causing the paper core 8 to rotate continuously to continuously wind the sheet 6. The automatic cutting and winding device for a winding machine in this embodiment, when used in conjunction with the winding machine, enables the winding machine to change and rewind without stopping, reducing downtime, improving production line winding efficiency, effectively saving labor costs, reducing worker workload, improving winding quality, ensuring the stability and consistency of the winding process, and increasing production safety. In this embodiment, both winding shafts 7 can be air-expansion shafts.

[0058] like Figures 1-6 As shown, the clamping drive mechanism may include a left clamping cylinder 15, a right clamping cylinder 16, and a mounting component 17;

[0059] The left clamping cylinder 15 is connected to the left turntable 9, and the right clamping cylinder 16 is connected to the right turntable 10;

[0060] The wrapping roller 11 is rotatably connected to the mounting component 17;

[0061] The left clamping cylinder 15 and the right clamping cylinder 16 are respectively connected to the mounting component 17 and are used to drive the mounting component 17 to move, thereby driving the wrapping roller 11 to move onto the paper core 8 that presses the sheet 6 onto the winding shaft 7 to be wound up.

[0062] like Figure 1 , 2As shown, the mounting component 17 can be a mounting shaft, the wrapping roller 11 is rotatably connected to the mounting shaft, the left pressing cylinder 15 is connected to the left end of the mounting shaft, and the right pressing cylinder 16 is connected to the right end of the mounting shaft. The left pressing cylinder 15 and the right pressing cylinder 16 are respectively used to drive the mounting shaft to move upward into position, thereby driving the wrapping roller 11 to move upward into position, so that the wrapping roller 11 presses the sheet 6 onto the paper core 8 on the winding shaft 7 to be wound. Specifically, in the prior art, the wrapping roller 11 is usually driven by a spring mechanism to press the sheet 6 onto the paper core 8. When winding a thicker sheet 6, the sheet 6 is relatively stiff and not easy to bend due to its thickness. At this time, the spring force of the spring mechanism is insufficient, resulting in insufficient pressure of the wrapping roller 11, which makes it impossible to press the sheet 6 onto the paper core 8. This leads to the inability to smoothly wrap and adhere the sheet 6 onto the paper core 8, thus preventing the winding operation from being completed. In this embodiment, the left pressing cylinder 15 and the right pressing cylinder 16 drive the wrapping roller 11 to press the sheet 6 onto the paper core 8, which greatly improves the pressing force of the wrapping roller 11 on the sheet 6, and can smoothly press the sheet 6 onto the paper core 8 to complete the winding operation, thereby adapting to the winding of sheets 6 of different thicknesses.

[0063] like Figure 5 , 6 As shown, the automatic cutting and winding device for the winding machine may further include a detection sensor 18 and a controller;

[0064] The detection sensor 18 is connected to at least one of the left turntable 9 and the right turntable 10 and is used to detect the sheet 6 that has not yet been wrapped and adhered to the paper core 8 during the process of the wrapping roller 11 rotating around the paper core 8 and driving the cut sheet 6 to wrap and adhere to the paper core 8.

[0065] The detection sensor 18 is connected to the controller and is used to send a stop signal to the controller when the sheet 6 is not detected. The controller is connected to the rotary drive mechanism and is used to control the rotary drive mechanism to stop driving the left turntable 9 and the right turntable 10 to rotate according to the stop signal.

[0066] Specifically, such as Figure 5As shown, after the cutting mechanism 5 cuts the sheet 6, the end of the sheet 6 to be wound will naturally droop. Then, the rotation drive mechanism will drive the left turntable 9 and the right turntable 10 to rotate, thereby driving the wrapping roller 11 to rotate around the paper core 8, thus causing the drooping section of the sheet 6 to wrap around and adhere to the paper core 8. This process is called winding. During the winding process, the detection sensor 18 will detect the drooping section of the sheet 6 that has not yet been wrapped around and adhered to the paper core 8. When the detection sensor 18 can still detect the sheet 6, it means that the drooping section of the sheet 6 has not yet been completely wrapped around and adhered to the paper core 8. When the detection sensor 18 cannot detect the sheet 6, it means that the drooping section of the sheet 6 has been completely wrapped around and adhered to the paper core 8. At this time, if... Figure 6 As shown, the detection sensor 18 then sends a stop signal to the controller, which, based on the stop signal, controls the rotary drive mechanism to stop driving the left turntable 9 and the right turntable 10 to rotate, thereby stopping the wrapping roller 11 from rotating around the paper tube core 8. In this embodiment, the detection sensor 18 is connected to the left turntable 9 and the right turntable 10, and the detection sensor 18 can be an infrared beam sensor.

[0067] like Figures 1-6 As shown, the rotary drive mechanism may include a power component 19, a drive shaft 20, a left drive gear 21, and a right drive gear;

[0068] The left turntable 9 has a left gear part 32 on its outer periphery, and the right turntable 10 has a right gear part 33 on its outer periphery;

[0069] The drive shaft 20 is rotatably connected to the movable frame 1, the left drive gear 21 is connected to the drive shaft 20 and meshes with the left gear part 32, and the right drive gear is connected to the drive shaft 20 and meshes with the right gear part 33;

[0070] The power component 19 is connected to the movable frame 1. The power component 19 is connected to the drive shaft 20 and drives the drive shaft 20 to rotate, thereby driving the left turntable 9 to rotate via the left drive gear 21 and the right turntable 10 to rotate via the right drive gear. This, in turn, drives the wrapping roller 11 connected to the pressing drive mechanism to rotate around the paper core 8. In this embodiment, the controller is connected to the power component 19 in the rotary drive mechanism and controls the power component 19 to stop operating after receiving a stop signal, thereby stopping the rotation of the left turntable 9 and the right turntable 10. Specifically, the power component 19 includes a motor and a transmission mechanism. The motor is connected to the movable frame 1 and connected to the drive shaft 20 via the transmission mechanism, thereby driving the drive shaft 20 to rotate. The transmission mechanism can be a chain drive mechanism or a synchronous belt drive mechanism.

[0071] like Figure 1 , 2 As shown in Figures 5 and 6, the cutting mechanism 5 may include a linear module 22, a cutter 23, and a cutter holder 24;

[0072] The cutter 23 is connected to the cutter holder 24;

[0073] The tool holder 24 is connected to the linear module 22;

[0074] The linear module 22 is connected to the movable frame 1 and is used to drive the cutter 23 on the cutter holder 24 to move along the width direction of the sheet 6 so that the cutter 23 cuts the sheet 6 pressed against by the tension roller 4; in this embodiment, the cutter 23 adopts a scissor-type structure.

[0075] like Figure 3 , 4 As shown, the movable frame 1 is slidably connected to the frame 25 in the front-to-back direction. The frame 25 is also connected to a flattening roller 26. The sheet 6 passes around the flattening roller 26 and is wound around the paper core 8 on the winding shaft 7. Specifically, when winding a thin sheet 6, the flattening roller 26 can flatten the sheet 6 to both sides to prevent the sheet 6 from wrinkling during winding.

[0076] like Figure 3 , 4 As shown, a traction component 27 can also be connected to the frame 25. After passing through the traction component 27, the sheet 6 goes around the flattening roller 26 and is then wound around the paper core 8 on the take-up shaft 7. Specifically, the traction component 27 can assist in traction of the sheet 6. The specific structure of the traction component 27 is existing technology well known to those skilled in the art, and will not be described in detail in this embodiment.

[0077] like Figure 1 As shown, the movable frame 1 may include a left wall panel 28, a right wall panel 29, a crossbeam 30, a first connecting shaft, and a second connecting shaft 31;

[0078] The left wall panel 28 and the right wall panel 29 are slidably connected to the frame 25 in the front-back direction, respectively;

[0079] One end of the crossbeam 30 is connected to the left wall panel 28, and the other end of the crossbeam 30 is connected to the right wall panel 29;

[0080] One end of the first connecting shaft is connected to the left wall panel 28, and the other end of the first connecting shaft is connected to the right wall panel 29;

[0081] One end of the second connecting shaft 31 is connected to the left wall panel 28, and the other end of the second connecting shaft 31 is connected to the right wall panel 29;

[0082] The pressure roller 3 is rotatably connected to the first connecting shaft, and the tension roller 4 is rotatably connected to the second connecting shaft 31. Specifically, the moving drive mechanism 2 includes two moving cylinders connected to the frame 25. One of the moving cylinders is also connected to the left wall plate 28, and the other moving cylinder is also connected to the right wall plate 29. The frame 25 may be, but is not limited to, the frame 25 of a winding machine.

[0083] In summary, the moving drive mechanism 2 is used to drive the moving frame 1 to the working position after the winding machine completes winding. At this time, the pressure roller 3 will press the sheet 6 onto the paper core 8 on the winding shaft 7 to be wound in the winding machine, and the tension roller 4 will press against the sheet 6 to be cut so that the sheet 6 is tensioned. At this time, the sheet 6 can maintain stable and sufficient tension. Then, the cutting mechanism 5 can cut the sheet 6 pressed against by the tension roller 4. Since the sheet 6 maintains stable and sufficient tension when it is cut, the problem of cracking and unevenness of the cut can be avoided when cutting the sheet 6. The cut can be neat and straight, and the sheet 6 with a flat cut can maintain stable and consistent tension in various places during subsequent winding, which is conducive to improving the winding quality of the sheet 6 and greatly facilitating the subsequent processing.

[0084] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic cutting and winding device for a winding machine, characterized in that, It is used in conjunction with a winding machine and includes a moving frame (1), a moving drive mechanism (2), a pressure roller (3), a tension roller (4), and a cutting mechanism (5). The movable frame (1) is slidably set in the front-to-back direction and has an initial position and a working position during the sliding process; The moving drive mechanism (2) is connected to the moving frame (1) and is used to drive the moving frame (1) to move between the initial position and the working position; The pressure roller (3) is connected to the moving frame (1) and is used to press the sheet (6) onto the paper core (8) on the winding shaft (7) to be wound in the winding machine when the moving frame (1) moves to the working position; The tensioning roller (4) is connected to the moving frame (1) and is used to press against the sheet (6) to be cut when the moving frame (1) moves to the working position so that the sheet (6) is tensioned; The cutting mechanism (5) is connected to the moving frame (1) and is used to cut the sheet (6) pressed against by the tension roller (4) when the moving frame (1) moves to the working position.

2. The automatic cutting and winding device for a winding machine according to claim 1, characterized in that, It also includes a left turntable (9), a right turntable (10), a wrapping roller (11), a pressing drive mechanism, and a rotary drive mechanism; The left turntable (9) and the right turntable (10) are coaxially rotatably connected to the moving frame (1). The left turntable (9) is provided with a left opening slot (12), and the right turntable (10) is provided with a right opening slot (13). When the moving drive mechanism (2) drives the moving frame (1) to move to the working position, the left opening slot (12) engages with the left end of the winding shaft (7) to be wound up, and the right opening slot (13) engages with the right end of the winding shaft (7) to be wound up. The rotation center of the left turntable (9) and the rotation center of the right turntable (10) are both coincident with the center line of the winding shaft (7) to be wound up. When the moving drive mechanism (2) drives the moving frame (1) to move to the initial position, the left opening slot (12) and the right opening slot (13) are both separated from the winding shaft (7) to be wound up. The wrapping roller (11) is connected to the pressing drive mechanism, which is connected to the left turntable (9) and the right turntable (10) and is used to drive the wrapping roller (11) to move to the paper core (8) that presses the sheet (6) onto the winding shaft (7) to be wound up when the moving frame (1) moves to the working position; The rotary drive mechanism is connected to the movable frame (1) and connected to the left turntable (9) and the right turntable (10) respectively. The rotary drive mechanism is used to drive the left turntable (9) and the right turntable (10) to rotate after the sheet (6) is cut, thereby driving the wrapping roller (11) to rotate around the paper core (8) so that the wrapping roller (11) can wrap and adhere one end of the cut sheet (6) to the paper core (8).

3. The automatic cutting and winding device for a winding machine according to claim 2, characterized in that, The clamping drive mechanism includes a left clamping cylinder (15), a right clamping cylinder (16), and a mounting component (17). The left clamping cylinder (15) is connected to the left turntable (9), and the right clamping cylinder (16) is connected to the right turntable (10); The wrapping roller (11) is rotatably connected to the mounting component (17); The left clamping cylinder (15) and the right clamping cylinder (16) are respectively connected to the mounting component (17) and are respectively used to drive the mounting component (17) to move, thereby driving the wrapping roller (11) to move onto the paper core (8) that presses the sheet (6) onto the winding shaft (7) to be wound up.

4. The automatic cutting and winding device for a winding machine according to claim 3, characterized in that, The mounting component (17) is a mounting shaft, the wrapping roller (11) is rotatably connected to the mounting shaft, the left pressing cylinder (15) is connected to the left end of the mounting shaft, and the right pressing cylinder (16) is connected to the right end of the mounting shaft.

5. The automatic cutting and winding device for a winding machine according to claim 2, characterized in that, It also includes a detection sensor (18) and a controller; The detection sensor (18) is connected to at least one of the left turntable (9) and the right turntable (10) and is used to detect the sheet (6) that has not yet been wrapped and bonded to the paper core (8) during the process of the wrapping roller (11) rotating around the paper core (8) and driving the cut sheet (6) to wrap and bond to the paper core (8); The detection sensor (18) is connected to the controller and is used to send a stop signal to the controller when the sheet (6) is not detected. The controller is connected to the rotary drive mechanism and is used to control the rotary drive mechanism to stop driving the left turntable (9) and the right turntable (10) to rotate according to the stop signal.

6. The automatic cutting and winding device for a winding machine according to claim 2, characterized in that, The rotary drive mechanism includes a power component (19), a drive shaft (20), a left drive gear (21), and a right drive gear; The left turntable (9) has a left gear part (32) on its outer periphery, and the right turntable (10) has a right gear part (33) on its outer periphery. The drive shaft (20) is rotatably connected to the movable frame (1), the left drive gear (21) is connected to the drive shaft (20) and meshes with the left gear part (32), and the right drive gear is connected to the drive shaft (20) and meshes with the right gear part (33); The power unit (19) is connected to the moving frame (1). The power unit (19) is connected to the drive shaft (20) and is used to drive the drive shaft (20) to rotate, thereby driving the left turntable (9) to rotate through the left drive gear (21) and driving the right turntable (10) to rotate through the right drive gear.

7. The automatic cutting and winding device for a winding machine according to claim 1, characterized in that, The cutting mechanism (5) includes a linear module (22), a cutter (23), and a cutter holder (24); The cutter (23) is connected to the cutter holder (24); The tool holder (24) is connected to the linear module (22); The linear module (22) is connected to the moving frame (1) and is used to drive the cutter (23) on the cutter holder (24) to move along the width direction of the sheet (6) so that the cutter (23) cuts the sheet (6) pressed against by the tension roller (4).

8. The automatic cutting and winding device for a winding machine according to claim 1, characterized in that, The movable frame (1) is slidably connected to the frame (25) in the front-back direction. The frame (25) is also connected to a flattening roller (26). The sheet (6) passes around the flattening roller (26) and is wound around the paper core (8) on the winding shaft (7).

9. The automatic cutting and winding device for a winding machine according to claim 8, characterized in that, The frame (25) is also connected to a traction assembly (27), and the sheet (6) passes through the traction assembly (27), goes around the flattening roller (26), and then winds around the paper core (8) connected to the take-up shaft (7).

10. The automatic cutting and winding device for a winding machine according to claim 1, characterized in that, The movable frame (1) includes a left wall panel (28), a right wall panel (29), a crossbeam (30), a first connecting shaft, and a second connecting shaft (31); The left wall panel (28) and the right wall panel (29) are slidably connected to the frame (25) in the front-back direction, respectively; One end of the crossbeam (30) is connected to the left wall panel (28), and the other end of the crossbeam (30) is connected to the right wall panel (29); One end of the first connecting shaft is connected to the left wall panel (28), and the other end of the first connecting shaft is connected to the right wall panel (29); One end of the second connecting shaft (31) is connected to the left wall panel (28), and the other end of the second connecting shaft (31) is connected to the right wall panel (29); The pressure roller (3) is rotatably connected to the first connecting shaft, and the tension roller (4) is rotatably connected to the second connecting shaft (31).

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