Full-automatic winding and cutting integrated device for PET sheet production and method of full-automatic winding and cutting integrated device

Abstract

The invention relates to the technical field of plastic sheet processing equipment, in particular to a full-automatic winding and cutting integrated device for PET sheet production and a method of the full-automatic winding and cutting integrated device. According to the technical scheme, the full-automatic winding and cutting integrated device for PET sheet production comprises a device bottom frame, a moving assembly, a winding assembly and a sheet processing frame, the moving assembly is arranged on one side of the surface of the device bottom frame, and the sheet processing frame is arranged on the surface of the moving assembly; when it is detected that the current winding roller reaches the preset winding diameter or length, a control system instructs a driving motor to drive a mounting frame to turn over, so that a standby winding roller automatically enters a working position, meanwhile, a moving assembly adjusts the position of a sheet processing frame, a built-in cutting and attaching module is aligned with a new winding roller, and then the cutting and attaching module is moved to the new winding roller. The cutting module automatically cuts off the sheet, the overturning and attaching module acts immediately, the new starting end of the sheet is firmly pressed on the surface of a new winding drum, and production pause and artificial quality fluctuation in the reel changing link are thoroughly eliminated.

Description

Technical Field

[0001] This invention relates to the field of plastic sheet processing equipment, and in particular to a fully automatic winding and cutting integrated device and method for PET sheet production. Background Technology

[0002] On PET sheet production lines, winding and cutting are two key downstream processes. However, existing PET sheet production processing equipment relies heavily on manual operation for roll changing, resulting in low automation, limited production efficiency, and potential quality issues. After collecting a roll of sheet, traditional winding equipment usually needs to be stopped, and operators manually cut the sheet from the full roll, install a new empty roll onto the drive shaft, and manually fix the starting end of the sheet onto the new roll. This not only wastes time and disrupts the continuity of production, but also makes it difficult to maintain absolute consistency in the force and position of manual operation, which can easily lead to loosening, displacement, or wrinkling of the initial layer of the roll, affecting the end face neatness and internal stress distribution of the final roll.

[0003] To address the aforementioned issues, this solution integrates a reversible winding assembly with an automated sheet handling frame, transforming the winding operation from a manually intervened process into a continuous, automated cycle. When the current winding roller reaches a preset diameter or length, the control system instructs the drive motor to flip the mounting frame, automatically placing the spare winding roller into the working position. Simultaneously, the moving assembly adjusts the position of the sheet handling frame, aligning the built-in cutting and bonding module with the new winding roller. Subsequently, the cutting module automatically cuts the sheet, and the flipping and bonding module then firmly presses the new starting end of the sheet onto the surface of the new roll. This completely eliminates production stoppages and human-induced quality fluctuations during roll changes, compresses roll change time, significantly improves production line efficiency and output capacity, and ensures the reliability and repeatability of the fixed starting end of each roll. Summary of the Invention

[0004] To overcome the limitations of existing PET sheet production processing equipment, which relies heavily on manual operation during roll changing, resulting in low automation, limited production efficiency, and potential quality issues, traditional winding equipment typically requires stopping the machine after collecting a roll of sheet. Operators then manually cut the sheet from the full roll, install a new empty roll onto the drive shaft, and manually fix the starting end of the sheet onto the new roll. This process is not only time-consuming and disrupts production continuity, but also makes it difficult to maintain absolute consistency in the force and position of manual operation. This can easily lead to loosening, shifting, or wrinkling of the initial layer of the roll, affecting the end face neatness and internal stress distribution of the final roll.

[0005] The technical solution of the present invention is as follows: a fully automatic winding and cutting integrated device for PET sheet production, comprising a device base frame, a moving component, a winding component and a sheet processing frame, wherein the moving component is provided on one side of the surface of the device base frame, the sheet processing frame is provided on the surface of the moving component, and the winding component is provided on the other side of the surface of the device base frame.

[0006] Preferably, each piece of equipment is installed on the device base frame, the sheet processing frame is moved by the moving component, the sheet is processed by the sheet processing frame, and the processed sheet is wound up and placed by the winding component.

[0007] Preferably, the winding assembly includes a support plate, a rotating shaft, a mounting frame, a winding roller, and a drive motor. The support plate is mounted on the surface of the device base, the rotating shaft is mounted on the inner side of the support plate, and the drive motor is mounted on the other side of the support plate. The output end of the drive motor is connected to the rotating shaft. The mounting frame is mounted on the outer side of the rotating shaft, and the winding roller is mounted on the inner side of the mounting frame. In use, the rotating shaft is mounted on the support plate, the rotating shaft is rotated by the drive motor, the mounting frame is mounted on the rotating shaft, the winding roller is mounted on the mounting frame, and the sheet is wound up by the winding roller. When the winding roller at one end of the mounting frame finishes winding, the rotating shaft rotates, the mounting frame flips, and the winding roller at the other end of the mounting frame continues to wind.

[0008] Preferably, the sheet processing frame is equipped with a conveying module inside, an auxiliary conveying module below the conveying module, a flipping and bonding module inside the sheet processing frame, and a cutting module on one side of the flipping and bonding module. In use, the PET sheet is initially conveyed by the conveying module, the frame is flipped, and the winding roller contacts the sheet surface from top to bottom. At this time, the cutting module is activated and cuts the sheet from left to right. The moving component drives the sheet processing frame to move, and the flipping and bonding module flips the outer side of the winding roller, pressing one end of the cut sheet against the surface of the winding roller. At this time, the conveying module conveys the remaining sheet, the winding roller rotates synchronously to wind up the sheet, and the auxiliary conveying module provides auxiliary conveying of the sheet.

[0009] Preferably, the moving component includes a servo motor, a reducer, a linear guide, a moving platform, and a position sensor. The servo motor provides the moving power, the reducer adjusts the motor speed, the linear guide limits the movement of the moving platform, the moving platform is located outside the linear guide, the moving platform is fixedly connected to the sheet processing frame, and the position sensor provides real-time feedback on the moving position of the sheet processing frame.

[0010] Preferably, the conveying module includes a drive roller and a guide roller. The drive roller is used to pull the sheet, and the guide roller is used to guide the sheet flat into the clamping area. In use, the conveying module is used to provide a continuous flow of sheet for the equipment and to form initial tension control.

[0011] Preferably, the auxiliary conveying module includes an auxiliary conveying roller group and an offset sensor. The auxiliary conveying roller group is used to support the sheet and prevent it from sagging due to loss of traction, and the offset sensor is used to detect the position and sagging status of the sheet.

[0012] Preferably, the flip-fitting module includes a push module, a flip drive mechanism, and a pressing roller. The push module is used to push the flip drive mechanism below the take-up roller. The flip drive mechanism is used to drive the pressing roller to flip quickly. The pressing roller is used to quickly fit the cut sheet ends onto the surface of the take-up roller and press them together.

[0013] Preferably, the cutting module includes a linear drive unit, a linear guide rail, a trigger sensor, and a cutting tool. The linear guide rail is used to ensure the straightness of the cutting motion, the linear drive unit is used to drive the cutting tool to move laterally, and the cutting tool is used to cut the PET sheet.

[0014] A fully automated winding and cutting method for PET sheet production includes the following steps: S11: Drives the conveyor module to continuously feed the PET sheet forward, where it is wound up by the winding rollers that are currently performing the winding operation; S12: After the winding roller that is currently performing the winding operation completes winding, the drive motor of the winding assembly is controlled to operate, driving the rotating shaft and the mounting frame to flip, positioning the winding roller to be wound up below the sheet conveying path. At the same time, the moving assembly drives the sheet processing frame to move, so that the cutting module and the flipping and bonding module set on it are aligned with the winding roller to be wound up. S13: Start the cutting module. Its cutting blade moves laterally under the drive of the linear drive unit to cut the PET sheet located between the two take-up rollers; S14: Control the flipping drive mechanism of the flipping and bonding module to drive the pressing roller to flip downwards and press the starting end of the cut sheet tightly against the surface of the winding roller to be wound up; S15: Start the pre-winding take-up roller to rotate for winding. At the same time, the conveying module continues to convey the sheet. The auxiliary conveying module provides auxiliary support for the sheet in the initial stage. After the winding tension stabilizes, it resets and the device enters a new stable winding cycle.

[0015] Preferably, in step S13, before or simultaneously with starting the cutting module for cutting, the auxiliary conveying roller group of the auxiliary conveying module is raised to support the PET sheet to be cut.

[0016] The beneficial effects of this invention are: 1. Existing PET sheet production processing equipment relies heavily on manual operation during roll changing, resulting in low automation, limited production efficiency, and potential quality issues. Traditional winding equipment typically requires stopping the machine after collecting a roll of sheet, with operators manually cutting the sheet from the full roll, installing a new empty roll onto the drive shaft, and manually fixing the starting end of the sheet onto the new roll. This process is not only time-consuming and disrupts production continuity, but also makes it difficult to maintain consistent force and position during manual operation, easily leading to loosening, misalignment, or wrinkling of the initial layer of the roll, affecting the end-face neatness and internal stress distribution of the final roll. This solution integrates a flip-up winding component with an automated sheet processing frame, enabling the winding process to be completed more efficiently. The operation has been transformed from a manually intervened process to a continuous cycle of automatic actions executed by the equipment. When the current take-up roller is detected to have reached the preset roll diameter or length, the control system commands the drive motor to rotate the mounting frame, so that the spare take-up roller automatically enters the working position. At the same time, the moving component adjusts the position of the sheet processing frame so that the built-in cutting and bonding module is aligned with the new take-up roller. Subsequently, the cutting module automatically cuts the sheet, and the flipping and bonding module then moves to firmly press the new starting end of the sheet onto the surface of the new roll. This completely eliminates production stoppages and human-induced quality fluctuations in the roll change process, compresses roll change time, and significantly improves the operating efficiency and output capacity of the production line, while ensuring the reliability and repeatability of the fixed starting end of each roll of product. 2. Existing PET sheet production processing equipment suffers from blind spots in sheet tension control and physical support during roll changeovers. This can easily lead to sheet sagging, shaking, or even scraping against equipment components, resulting in quality defects. Traditional equipment lacks proactive management of the transition phase, relying solely on the sheet's inherent stiffness or minimally invasive passive guide rollers. This makes it difficult to handle differences in sheet thickness and hardness, severely impacting product yield. This solution, through the coordination of moving components, auxiliary conveying modules, and other modules, achieves fully controlled guidance and support for the sheet from cutting to new roll formation. Before or simultaneously with the cutting action, the rollers of the auxiliary conveying module actively rise to support the main body of the sheet to be cut, effectively preventing it from sagging instantly due to loss of forward traction. At the same time, the moving components ensure the relative position of the entire processing frame with the new take-up roller. When bonding is complete and the new take-up roller begins to rotate and gradually build tension, the auxiliary conveying module does not immediately retract but descends slowly in coordination with the acceleration of the new roll, thus avoiding sudden tension changes. Attached Figure Description

[0017] Figure 1 The diagram shown is a first three-dimensional structural schematic of a fully automatic winding and cutting integrated device for PET sheet production according to the present invention. Figure 2The diagram shown is a second perspective view of a fully automatic winding and cutting integrated device for PET sheet production according to the present invention. Figure 3 The diagram shown is a partial three-dimensional structural schematic of a fully automatic winding and cutting integrated device for PET sheet production according to the present invention. Figure 4 The diagram shown is a second partial three-dimensional structural schematic of a fully automatic winding and cutting integrated device for PET sheet production according to the present invention. Explanation of reference numerals in the attached drawings: 1. Device base frame; 2. Moving component; 3. Rewinding component; 4. Sheet processing frame; 5. Conveying module; 6. Auxiliary conveying module; 7. Flipping and bonding module; 8. Cutting module; 301. Support plate; 302. Rotating shaft; 303. Mounting frame; 304. Rewinding roller; 305. Drive motor. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please see Figure 1-4 The present invention provides an embodiment of a fully automatic winding and cutting integrated device for PET sheet production, comprising a device base frame 1, a moving component 2, a winding component 3, and a sheet processing frame 4. The moving component 2 is disposed on one side of the surface of the device base frame 1, the sheet processing frame 4 is disposed on the surface of the moving component 2, and the winding component 3 is disposed on the other side of the surface of the device base frame 1.

[0020] Preferably, each device is installed on the device base frame 1, the sheet processing frame 4 is moved by the moving component 2, the sheet is processed by the sheet processing frame 4, and the processed sheet is wound up and placed by the winding component 3.

[0021] Preferably, the winding assembly 3 includes a support plate 301, a rotating shaft 302, a mounting frame 303, a winding roller 304, and a drive motor 305. The support plate 301 is mounted on the surface of the device base frame 1. The rotating shaft 302 is mounted on the inner side of the support plate 301. The drive motor 305 is mounted on the other side of the support plate 301. The output end of the drive motor 305 is connected to the rotating shaft 302. The mounting frame 303 is mounted on the outer side of the rotating shaft 302. The winding roller 304 is mounted on the inner side of the mounting frame 303. In use, the rotating shaft 302 is installed on the support plate 301, and the rotating shaft 302 is driven to rotate by the drive motor 305. The mounting frame 303 is installed on the rotating shaft 302, and the take-up roller 304 is installed on the mounting frame 303. The take-up roller 304 is used to wind up the sheet. When the take-up roller 304 at one end of the mounting frame 303 finishes winding, the rotating shaft 302 rotates, the mounting frame 303 flips, and the take-up roller 304 at the other end of the mounting frame 303 continues to wind up.

[0022] Preferably, the sheet processing frame 4 is equipped with a conveying module 5 inside, an auxiliary conveying module 6 is provided below the conveying module 5, a flip-fitting module 7 is provided on the inner side of the sheet processing frame 4, and a cutting module 8 is provided on one side of the flip-fitting module 7. In use, the PET sheet is initially conveyed by the conveying module 5, the mounting frame 303 flips, and the take-up roller 304 contacts the sheet surface from top to bottom. At this time, the cutting module 8 is activated and cuts the sheet from left to right. The moving component 2 drives the sheet processing frame 4 to move, and the flip-fitting module 7 wraps around the outside of the take-up roller 304 and flips it, pressing one end of the cut sheet onto the surface of the take-up roller 304. At this time, the conveying module 5 conveys the remaining sheet, the take-up roller 304 rotates synchronously to take up the sheet, and the auxiliary conveying module 6 provides auxiliary conveying of the sheet.

[0023] Preferably, the moving component 2 includes a servo motor, a reducer, a linear guide rail, a moving platform, and a position sensor. The servo motor is used to provide moving power, the reducer is used to adjust the motor speed, the linear guide rail is used to limit the moving platform, the moving platform is located outside the linear guide rail, the moving platform is fixedly connected to the sheet processing frame 4, and the position sensor is used to provide real-time feedback on the moving position of the sheet processing frame 4.

[0024] Preferably, the conveying module 5 includes a drive roller and a guide roller. The drive roller is used to pull the sheet, and the guide roller is used to guide the sheet to enter the clamping area smoothly. In use, the conveying module 5 is used to provide a continuous flow of sheet for the equipment and to form initial tension control.

[0025] Preferably, the auxiliary conveying module includes an auxiliary conveying roller group and an offset sensor. The auxiliary conveying roller group is used to support the sheet and prevent it from sagging due to loss of traction, and the offset sensor is used to detect the position and sagging status of the sheet.

[0026] Preferably, the flip-fitting module includes a push module, a flip drive mechanism, and a pressing roller. The push module is used to push the flip drive mechanism below the take-up roller 304. The flip drive mechanism is used to drive the pressing roller to flip quickly. The pressing roller is used to quickly fit the cut sheet end onto the surface of the take-up roller 304 and press it firmly.

[0027] Preferably, the cutting module includes a linear drive unit, a linear guide rail, a trigger sensor, and a cutting tool. The linear guide rail is used to ensure the straightness of the cutting motion, the linear drive unit is used to drive the cutting tool to move laterally, and the cutting tool is used to cut the PET sheet.

[0028] A fully automated winding and cutting method for PET sheet production includes the following steps: S11: Drive the conveyor module 5 to continuously convey the PET sheet forward, and have it wound up by the winding roller 304 which is currently performing the winding operation; S12: After the winding roller 304, which is currently in the winding operation, completes winding, the drive motor 305 of the winding assembly 3 is activated to drive the rotating shaft 302 and the mounting frame 303 to rotate, positioning the winding roller 304 to be wound up below the sheet conveying path. At the same time, the moving assembly 2 drives the sheet processing frame 4 to move, so that the cutting module 8 and the flipping and bonding module 7 set on it are aligned with the winding roller 304 to be wound up. S13: Start the cutting module 8, whose cutting blade moves laterally under the drive of the linear drive unit to cut the PET sheet located between the two take-up rollers 304; S14: Control the flipping drive mechanism of the flipping and bonding module 7 to drive the pressing roller to flip downward and press the starting end of the cut sheet onto the surface of the winding roller 304 to be wound up; S15: Start the pre-winding take-up roller 304 to rotate for winding. At the same time, the conveying module 5 continues to convey the sheet. The auxiliary conveying module 6 provides auxiliary support for the sheet in the initial stage. After the winding tension stabilizes, it resets and the device enters a new stable winding cycle.

[0029] Preferably, in step S13, before or simultaneously with starting the cutting module 8 for cutting, the auxiliary conveying roller group of the auxiliary conveying module 6 is controlled to rise to support the PET sheet to be cut.

[0030] Example 1 The device is installed at the rear end of a PET sheet extrusion production line. The production line continuously produces PET sheets with a fixed width. After being drawn and cooled to set the shape, the sheets are introduced into this fully automatic winding and cutting integrated device.

[0031] After the device is started, the operator installs two empty rolls onto the take-up rollers 304 on both sides of the mounting frame 303 of the take-up assembly 3. The take-up roller 304 on the working position is ready. The sheet passes through the sheet processing frame 4 and is guided by the guide roller of the conveying module 5 inside it into the clamping area of ​​the drive roller and is continuously conveyed forward. The front end of the sheet is manually guided and fixed on the take-up roller 304 at the initial working position. Then, the drive motor 305 of the take-up assembly 3 drives the take-up roller 304 to rotate and start to stably wind up the sheet. The conveying module 5 provides a stable feeding traction force at the same time, forming preliminary tension control. At this time, the equipment enters the continuous production state.

[0032] When the take-up roller 304 in the working position reaches the preset diameter, the control system triggers the automatic roll changing program. First, the drive motor 305 of the take-up assembly 3 starts, driving the rotating shaft 302 to rotate 180 degrees, causing the entire mounting frame 303 to flip. The empty take-up roller 304, which was originally in the preparatory position, rotates to the working position directly below the sheet conveying path, while the fully loaded roller flips to the upper preparatory position. Almost simultaneously, the servo motor of the moving assembly 2 starts to work, driving the moving platform through the reducer and ball screw, driving the entire sheet processing frame 4 to move precisely along the linear guide rail until the center line of the cutting module 8 and the flipping and bonding module 7 in the frame are aligned with the center line of the newly positioned take-up roller 304. The position sensor provides real-time feedback to ensure positioning accuracy.

[0033] After positioning is completed, the roll changing sequence is executed quickly. The auxiliary conveying roller group of the auxiliary conveying module 6 is immediately raised under the drive of the cylinder to support the continuously arriving sheet and prevent it from sagging after losing forward traction due to the imminent cutting. Then, the linear drive unit of the cutting module 8 is activated, pushing the cutting blade to move quickly laterally along the linear guide rail, cleanly and neatly cutting the running sheet between the front and rear take-up rollers 304.

[0034] After the cutting action is completed, the flip-fit ​​module 7 immediately takes action. Its propulsion module first pushes the entire mechanism close to the take-up roller 304, and then the flip drive mechanism drives the pressing roller to flip down quickly, firmly pressing and bonding the starting end of the freshly cut sheet attached to it onto the surface of the new take-up roller 304.

[0035] As bonding is completed, the new take-up roller 304 begins to accelerate its rotation under the drive of the drive motor 305, establishing take-up tension. At the same time, the conveying module 5 maintains the sheet conveying, while the auxiliary conveying roller group of the auxiliary conveying module 6 slowly descends as the tension of the new roll stabilizes, smoothly transferring the responsibility of supporting and traction the sheet to the new take-up roller. Then, it fully resets to the standby position, and the device re-enters a high-speed, stable take-up production cycle. Operators can unload the fully wound roll above and replace it with a new empty roll without stopping the machine, preparing for the next automatic roll change.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fully automatic winding and cutting integrated device for PET sheet production; characterized in that: It includes a device base frame (1), a moving component (2), a winding component (3) and a sheet processing frame (4). The moving component (2) is provided on one side of the surface of the device base frame (1), the sheet processing frame (4) is provided on the surface of the moving component (2), and the winding component (3) is provided on the other side of the surface of the device base frame (1).

2. The full-automatic winding and cutting integrated device for PET sheet production according to claim 1, characterized in that: The winding assembly (3) includes a support plate (301), a rotating shaft (302), a mounting frame (303), a winding roller (304), and a drive motor (305). The support plate (301) is provided on the surface of the device base frame (1). The rotating shaft (302) is provided on the inner side of the support plate (301). The drive motor (305) is provided on the other side of the support plate (301). The output end of the drive motor (305) is connected to the rotating shaft (302). The mounting frame (303) is provided on the outer side of the rotating shaft (302). The winding roller (304) is provided on the inner side of the mounting frame (303).

3. The fully automatic winding and cutting integrated device for PET sheet production according to claim 1, characterized in that: The sheet processing frame (4) is equipped with a conveying module (5) inside, and an auxiliary conveying module (6) is provided below the conveying module (5). The sheet processing frame (4) is equipped with a flip-fitting module (7) on the inside, and a cutting module (8) is provided on one side of the flip-fitting module (7).

4. The fully automatic winding and cutting integrated device for PET sheet production according to claim 1, characterized in that: The moving component (2) includes a servo motor, a reducer, a linear guide, a moving platform, and a position sensor. The servo motor is used to provide moving power, the reducer is used to adjust the motor speed, the linear guide is used to limit the moving platform, the moving platform is set on the outside of the linear guide, the moving platform is fixedly connected to the sheet processing frame (4), and the position sensor is used to provide real-time feedback on the moving position of the sheet processing frame (4).

5. The fully automatic winding and cutting integrated device for PET sheet production according to claim 3, characterized in that: The conveying module (5) includes a drive roller and a guide roller. The drive roller is used to pull the sheet, and the guide roller is used to guide the sheet to enter the clamping area smoothly.

6. The fully automatic winding and cutting integrated device for PET sheet production according to claim 3, characterized in that: The auxiliary conveying module includes an auxiliary conveying roller assembly and an offset sensor. The auxiliary conveying roller assembly is used to support the sheet and prevent it from sagging due to loss of traction, while the offset sensor is used to detect the position and sagging status of the sheet.

7. The fully automatic winding and cutting integrated device for PET sheet production according to claim 3, characterized in that: The flip-fit ​​module includes a push module, a flip drive mechanism, and a pressing roller. The push module is used to push the flip drive mechanism under the take-up roller (304). The flip drive mechanism is used to drive the pressing roller to flip quickly. The pressing roller is used to quickly fit the cut sheet end onto the surface of the take-up roller (304) and press it firmly.

8. The fully automatic winding and cutting integrated device for PET sheet production according to claim 3, characterized in that: The cutting module includes a linear drive unit, a linear guide rail, a trigger sensor, and a cutting tool. The linear guide rail is used to ensure the straightness of the cutting motion, the linear drive unit is used to drive the cutting tool to move laterally, and the cutting tool is used to cut the PET sheet.

9. A fully automated winding and cutting method for PET sheet production according to any one of claims 1-8, characterized in that: A fully automated winding and cutting method for PET sheet production includes the following steps: S11: Drive the conveyor module (5) to continuously convey the PET sheet forward, and have it wound up by the winding roller (304) which is currently performing the winding operation; S12: When the winding roller (304) that is currently winding has finished winding, the drive motor (305) of the winding assembly (3) is activated to drive the rotating shaft (302) and the mounting frame (303) to rotate, positioning the winding roller (304) to be wound up below the sheet conveying path. At the same time, the moving assembly (2) drives the sheet processing frame (4) to move, so that the cutting module (8) and the flipping and bonding module (7) set on it are aligned with the winding roller (304) to be wound up. S13: Start the cutting module (8), whose cutting blade moves laterally under the drive of the linear drive unit to cut the PET sheet located between the two take-up rollers (304); S14: Control the flipping drive mechanism of the flipping and bonding module (7) to drive the pressing roller to flip downward and press the starting end of the cut sheet tightly against the surface of the winding roller (304) to be wound up; S15: Start the pre-winding take-up roller (304) to rotate for winding. At the same time, the conveying module (5) continues to convey the sheet. The auxiliary conveying module (6) provides auxiliary support for the sheet in the initial stage. After the winding tension stabilizes, it resets and the device enters a new stable winding cycle.

10. A fully automated winding and cutting method for PET sheet production according to claim 9, characterized in that: In step S13, before or simultaneously with the start of the cutting module (8) for cutting, the auxiliary conveying roller group of the auxiliary conveying module (6) is controlled to rise to support the PET sheet to be cut.

Images