Intelligent production equipment for PET (Polyethylene Terephthalate) film

By designing intelligent PET membrane production equipment, including monitoring, locking, smoothing and winding components, the fracture problem caused by excessive temperature during the drying process of PET membrane is solved, and efficient utilization of resources and intelligent production equipment are achieved.

CN119589854APending Publication Date: 2025-03-11GUANGDONG LAIRUIBAO TECH CO LTD
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Patent Information

Application Number
CN202411925803.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

During the production process of existing PET films, the temperature during the drying process is too high, causing the PET film to melt and break, and the equipment is not intelligent, so the production cannot be stopped in time, resulting in waste of resources.

Method used

An intelligent production device for PET membranes is designed, including monitoring components, locking components, smoothing components and winding components. The monitoring component detects the breakage of the PET membrane through the sensor, and cuts off the power supply in time; locks the PET membrane when it is broken, and keeps the tight state; smoothes the PET membrane during the winding process to avoid wrinkles; the winding component stops wrapping after receiving the breaking signal to prevent damage to the PET membrane.

Benefits of technology

Real-time monitoring and response to temperature and fracture during PET film production is realized, which avoids damage to PET film and waste of resources, and improves the intelligence of production equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of PET film production, particularly relates to intelligent production equipment for a PET film, and aims to solve the problems of resource waste and low intelligent degree caused by melting and breakage of the PET film in the drying process due to too high temperature, and the problems that during production operation, when a PET film body is broken, a rotating roller naturally falls off without stress, and the PET film body is damaged. The springs A are mounted on the sliding blocks at the two ends of the rotating roller and connected with the sensor unit module, numerical values of the sensor unit module change, the sensor unit module sends out signals to cut off a power source of the production equipment body in time, resource waste is avoided, the structure is simple, production of PET films can be conveniently monitored, the use effect is good, and the production efficiency is improved. The device is simple in structure and high in intelligent degree, the PET film body can be locked in time, the PET film body is kept in a tightened state all the time, the winding and rolling quality of the PET film is improved, and the PET film is prevented from being damaged.
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Description

Technical Field

[0001] The present invention belongs to the technical field of PET film production, and in particular relates to intelligent production equipment for PET films. Background Art

[0002] PET film is a thin film made from polyethylene terephthalate. Its excellent physical properties, such as high strength, rigidity, and abrasion resistance, enable it to provide adequate support and protection in a variety of applications. This has led to its widespread use in packaging, printing, and laminating. PET film also exhibits good resistance to many chemicals, making it suitable for applications involving contact with some foods, pharmaceuticals, and other chemicals. During the PET film production process, a certain amount of moisture or volatile organic solvents may remain. To ensure the performance and quality of the PET film, a drying device is typically required to remove the moisture or solvent from the PET film to ensure that the film achieves the desired physical and chemical properties during production.

[0003] Drying is an essential process in the existing PET film production process. It is generally dried by hot air. Hot air is supplied to the surface of the PET film to evaporate and remove moisture, thereby achieving the drying effect. Generally, parameters such as temperature, wind speed and drying time in the drying process need to be adjusted according to the specific requirements of the PET film. However, during the preparation process of some PET films, the temperature is sometimes too high, causing the PET film to melt and break during the drying process. The equipment cannot be stopped in time, resulting in waste of resources and low intelligence. In order to solve the above problems, this application proposes an intelligent production equipment for PET film. Summary of the Invention

[0004] (1) Technical problems to be solved In order to solve the problems raised in the above background technology, the present invention provides an intelligent production equipment for PET film, which has the characteristics of good monitoring effect, timely cutting off power supply, and preventing damage to the PET film.

[0005] (2) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent production equipment for PET film, comprising a production equipment main body, including a drying box main body, an observation window, a winding frame, a transmission roller, a toothed disc A, a chain A, a PET film body, a conveying roller, a monitoring component, a locking component, a smoothing component and a winding component, the drying box main body is arranged on one side of the discharge port of the production equipment main body, an observation window is provided on the surface of the drying box main body, an exhaust port is installed on the upper surface of the drying box main body, a winding frame is provided on one side of the discharge port of the drying box main body, two transmission rollers rotate on the surface of the winding frame, a servo motor is installed at one end of one of the transmission rollers, a toothed disc A is installed between the output end of the servo motor and the transmission roller, the two transmission rollers are rotatably connected by the chain A, a plurality of transmission rollers rotate on the surface of the winding frame, the PET film body is wound around the surfaces of the conveying roller and the transmission roller, a monitoring component is provided at the discharge port position of the drying box main body, a locking component is provided on the surface of the winding frame, a smoothing component is provided on the surface of the locking component, and the winding assembly is installed at a position below the winding frame; The monitoring component includes a fixed plate, a mounting plate, a rotating roller, a slider, a guide groove, a connecting plate, a sensor unit module and a spring A. A fixed plate is installed on the upper surface of the discharge port of the drying box body, and two mounting plates are symmetrically installed on the lower surface of the fixed plate. A rotating roller is arranged between the two mounting plates. The rotating shafts at both ends of the rotating roller are rotated with sliders, and the sliders slide in the guide grooves opened on the surface of the mounting plate. A connecting plate is installed on the surface of the mounting plate, and a sensor unit module is installed on the bottom surface of the connecting plate. A spring A is arranged under the sensor unit module, and the two ends of the spring A are respectively connected to the sensor unit module and the slider. The sensor unit module is connected to the locking component and the winding component signals.

[0006] Furthermore, the slider is arranged in a convex shape.

[0007] Furthermore, the locking assembly includes a fixed frame, a movable block, an extrusion roller, an adjustment block, a mounting block, an electromagnetic suction cup A, an electromagnetic suction cup B, a cylindrical pin, a spring B, a limit block and a spring C. A fixed frame is installed on one side of the surface of the winding frame, a movable block is provided at one end of the fixed frame, an extrusion roller is provided between the two movable blocks, both ends of the extrusion roller are rotatably connected to the movable block, an adjustment block is installed at one end of the movable block, the adjustment block is inserted into the fixed frame, two groups of mounting blocks are symmetrically installed on the surface of the fixed frame, an electromagnetic suction cup A is installed in a blind groove opened inside the mounting block, an electromagnetic suction cup B is provided on one side of the electromagnetic suction cup A, a cylindrical pin is installed on one side surface of the electromagnetic suction cup B, one end of the cylindrical pin passes through the mounting block and abuts against the surface of the adjusting block, a spring B is sleeved on the surface of the cylindrical pin, both ends of the spring B are respectively connected to the electromagnetic suction cup B and the mounting block, a spring C is installed on one end surface of the adjusting block, and the other end of the spring C is connected to the limit block installed in the fixed frame, and the elastic force of the spring C is less than the contraction force of the spring B.

[0008] Furthermore, positioning holes are symmetrically opened on the surface of the adjustment block, and the cylindrical pins are inserted into the positioning holes.

[0009] Furthermore, the surface of the adjustment block is symmetrically provided with limiting grooves of a square structure, and the inner wall of the insertion hole provided in the fixing frame is provided with a protrusion adapted to the limiting groove.

[0010] Furthermore, an alarm is installed on the surface of the mounting block, and the alarm is signal-connected to the sensor unit module.

[0011] Furthermore, the smoothing assembly includes a smoothing plate and a fixing seat. The smoothing plate is provided on the surface of the fixing frame. The smoothing plate is installed on the surface of the fixing frame through the fixing seat. One end surface of the smoothing plate is in contact with the driving roller.

[0012] Furthermore, a silicone sponge pad is installed on the surface of the smoothing plate that contacts the transmission roller.

[0013] Furthermore, the winding assembly includes a mounting seat, a winding roller, a gear disc B, a chain B and a driving motor. The mounting seat is installed on the surface of the winding frame, and the mounting seat has a through hole position and is rotatably connected to the winding roller through a bearing. A gear disc B is installed at one end of the rotating shaft of the winding roller. The driving motor is installed on the surface of the winding frame on one side of the winding roller, and a gear disc C is installed on the output shaft end of the driving motor. A chain B is arranged between the gear discs B and C, and the chain B is meshed and connected to the surfaces of the gear discs B and C.

[0014] Furthermore, the drive motor is signal-connected to the sensor unit module.

[0015] (3) Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a monitoring component, the PET film body is passed under the rotating roller. When the PET film body is tightened, the rotating roller is always in an upward state. When the PET film body breaks, the rotating roller falls naturally without force. By installing springs A on the sliders at both ends of the rotating roller and connecting them with the sensor unit module, the value of the sensor unit module is changed, and the sensor unit module sends a signal to cut off the power supply of the production equipment body in time to avoid waste of resources. The structure is simple, the production of PET film can be easily monitored, the use effect is good, and the degree of intelligence is high.

[0016] 2. When the sensor unit module sends a signal to the equipment to power off, the electromagnetic chuck A and the electromagnetic chuck B are energized and adsorbed together, and the cylindrical pin releases the restriction on the movable block. At this time, the squeezing roller is squeezed toward the transmission roller position under the tension of the spring C installed on the limit block, and the PET film body is restricted to the surface of the transmission roller. This structure can lock the PET film body in time when the PET film body breaks, keep the PET film body always in a taut state, and improve the winding quality of the PET film.

[0017] 3. By setting up a winding component and monitoring the sensor unit module and the drive motor on the component, the drive motor is powered off after receiving the fracture information, and the winding roller stops winding to prevent the PET film from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a bottom view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure at center A; Figure 4 For the present invention Figure 2 Schematic diagram of the structure at C in the middle; Figure 5 is a cross-sectional view of the internal structure of the fixing frame of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure at point B in the middle; Figure 7 This is a structural view of the locking assembly of the present invention; Figure 8 It is a front view of the overall structure of the present invention; Figure 9 This is an enlarged view of the internal structure of the mounting block in the locking assembly of the present invention; Figure 10 It is a schematic structural diagram of the winding component and the smoothing component in the present invention.

[0019] In the picture: Drying box body; 11. Observation window; 12. Winding rack; 13. Transmission roller; 14. Toothed disc A; 15. Chain A; 16. PET film body; 17. Conveyor roller; Monitoring assembly; 21. Fixing plate; 22. Mounting plate; 23. Rotating roller; 24. Slider; 25. Guide groove; 26. Connecting plate; 27. Sensor unit module; 28. Spring A; Locking assembly; 31. Fixing bracket; 32. Movable block; 33. Squeeze roller; 34. Adjusting block; 35. Mounting block; 36. Electromagnetic chuck A; 37. Electromagnetic chuck B; 38. Cylindrical pin; 39. Spring B; 310. Positioning hole; 311. Limiting slot; 312. Limiting block; 313. Spring C; 314. Alarm; Smoothing assembly; 41. Smoothing plate; 42. Fixing seat; Winding assembly; 51. Mounting seat; 52. Winding roller; 53. Toothed disc B; 54. Chain B; 55. Driving motor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 As shown: A smart production equipment for PET film, including a production equipment body, including a drying box body 1, an observation window 11, a winding rack 12, a transmission roller 13, a toothed disc A14, a chain A15, a PET film body 16, a conveyor roller 17, a monitoring component 2, a locking component 3, a smoothing component 4 and a winding component 5, the drying box body 1 is arranged on one side of the discharge port of the production equipment body, the surface of the drying box body 1 is provided with an observation window 11, the upper surface of the drying box body 1 is provided with an exhaust port, a winding rack 12 is provided on one side of the discharge port of the drying box body 1, and the surface of the winding rack 12 rotates with two A transmission roller 13 is provided, and a servo motor is installed at one end of one of the transmission rollers 13. A gear wheel A14 is installed between the output end of the servo motor and the transmission roller 13. The two transmission rollers 13 are rotatably connected by a chain A15. A plurality of conveying rollers 17 are rotated on the surface of the winding frame 12. The PET film body 16 is wound on the surface of the conveying roller 17 and the transmission roller 13. A monitoring component 2 is provided at the discharge port of the drying box main body 1. A locking component 3 is provided on the surface of the winding frame 12. A smoothing component 4 is provided on the surface of the locking component 3. The winding component 5 is installed at the lower position of the winding frame 12.

[0022] More specifically: like Figures 1-10 As shown: In combination with the above content, the monitoring component 2 includes a fixed plate 21, a mounting plate 22, a rotating roller 23, a slider 24, a guide groove 25, a connecting plate 26, a sensor unit module 27 and a spring A28. A fixed plate 21 is installed on the upper surface of the discharge port position of the drying box body 1, and two mounting plates 22 are symmetrically installed on the lower surface of the fixed plate 21. A rotating roller 23 is arranged between the two mounting plates 22. The rotating shafts at both ends of the rotating roller 23 are rotated with sliders 24, and the slider 24 slides in the guide groove 25 opened on the surface of the mounting plate 22. A connecting plate 26 is installed on the surface of the mounting plate 22, and a sensor unit module 27 is installed on the bottom surface of the connecting plate 26. A spring A28 is arranged under the sensor unit module 27, and the two ends of the spring A28 are respectively connected to the sensor unit module 27 and the slider 24. The sensor unit module 27 is connected to the locking component 3 and the winding component 5 signal.

[0023] In this embodiment: by setting up a monitoring component 2, the PET film body 16 is passed under the rotating roller 23. When the PET film body 16 is tightened, the rotating roller 23 is always in an upward state. When the PET film body 16 breaks, the rotating roller 23 falls naturally without force. By installing a spring A28 on the sliders 24 at both ends of the rotating roller 23 and connecting it to the sensor unit module 27, the value of the sensor unit module 27 is changed, and the sensor unit module 27 sends a signal to cut off the power supply of the production equipment body in time to avoid waste of resources. The structure is simple, the production of PET film can be easily monitored, the use effect is good, and the degree of intelligence is high.

[0024] It should be noted that the slider 24 is arranged in a convex shape, which improves the stability of the rotating roller 23 between the mounting plates 22 and improves the accuracy of the information received by the sensor unit module 27.

[0025] Going further: like Figures 1-10 As shown: In order to be able to clamp and tighten the wound PET film in time when it breaks, in an optional embodiment: the locking component 3 includes a fixed frame 31, a movable block 32, a squeezing roller 33, an adjusting block 34, a mounting block 35, an electromagnetic suction cup A36, an electromagnetic suction cup B37, a cylindrical pin 38, a spring B39, a limit block 312 and a spring C313, a fixed frame 31 is installed on one side of the surface of the winding frame 12, a movable block 32 is provided at one end of the fixed frame 31, a squeezing roller 33 is provided between the two movable blocks 32, both ends of the squeezing roller 33 are rotatably connected to the movable block 32, an adjusting block 34 is installed at one end of the movable block 32, the adjusting block 34 is plugged into the fixed frame 31, and the fixed frame 31 is fixed with a plurality of springs. Two groups of mounting blocks 35 are symmetrically installed on the surface. An electromagnetic suction cup A36 is installed in a blind groove opened inside the mounting block 35. An electromagnetic suction cup B37 is provided on one side of the electromagnetic suction cup A36. A cylindrical pin 38 is installed on one side of the electromagnetic suction cup B37. One end of the cylindrical pin 38 passes through the mounting block 35 and abuts against the surface of the adjusting block 34. A spring B39 is sleeved on the surface of the cylindrical pin 38. The two ends of the spring B39 are respectively connected to the electromagnetic suction cup B37 and the mounting block 35. A spring C313 is installed on one end surface of the adjusting block 34. The other end of the spring C313 is connected to the limit block 312 installed in the fixing frame 31. The elastic force of the spring C313 is less than the contraction force of the spring B39.

[0026] In this embodiment: when the sensor unit module 27 sends a signal to the device to cut off the power, the electromagnetic suction cup A36 and the electromagnetic suction cup B37 are energized and adsorbed together, and the cylindrical pin 38 releases the restriction on the movable block 32. At this time, the squeezing roller 33 is squeezed toward the position of the transmission roller 13 under the tension of the spring C313 installed on the limit block 312, and the PET film body 16 is restricted to the surface of the transmission roller 13. This structure can lock the PET film body 16 in time when the PET film body 16 breaks, keep the PET film body 16 in a taut state at all times, and improve the winding quality of the PET film.

[0027] It should be noted that positioning holes 310 are symmetrically opened on the surface of the adjustment block 34 , and the cylindrical pins 38 are inserted into the positioning holes 310 to improve the stability of the movable block 32 in the fixing frame 31 .

[0028] It should be noted that: the surface of the adjustment block 34 is symmetrically provided with a square-shaped limiting groove 311 , and the inner wall of the insertion hole provided in the fixing frame 31 is provided with a protrusion adapted to the limiting groove 311 .

[0029] It should be noted that an alarm 314 is installed on the surface of the mounting block 35. The alarm 314 is connected to the sensor unit module 27 by signal, which can promptly remind the operator to perform maintenance at the first time to avoid affecting the production efficiency of the equipment.

[0030] More specifically: like Figures 1-10 As shown: In combination with the above content, the smoothing assembly 4 includes a smoothing plate 41 and a fixing seat 42. The smoothing plate 41 is provided on the surface of the fixing frame 31. The smoothing plate 41 is installed on the surface of the fixing frame 31 through the fixing seat 42. One end surface of the smoothing plate 41 is in contact with the transmission roller 13.

[0031] In this embodiment, in order to improve the quality of the wound product of the PET film, the smoothing plate 41 is in contact with the driving roller 13 during the winding process, which can flatten the PET film and avoid wrinkles during winding, thereby improving product quality.

[0032] It should be noted that a silicone sponge pad is installed on the surface of the smoothing plate 41 that contacts the transmission roller 13, so as to clean the surface of the PET film.

[0033] More specifically: like Figures 1-10 As shown: In combination with the above content, the winding assembly 5 includes a mounting seat 51, a winding roller 52, a gear disc B53, a chain B54 and a driving motor 55. The mounting seat 51 is installed on the surface of the winding frame 12. The mounting seat 51 has a through hole position and is rotatably connected to the winding roller 52 through a bearing. A gear disc B53 is installed at one end of the rotating shaft of the winding roller 52. A driving motor 55 is installed on the surface of the winding frame 12 on one side of the winding roller 52. A gear disc C is installed on the output shaft end of the driving motor 55. A chain B54 is arranged between the gear discs B53 and C. The chain B54 is meshed and connected to the surfaces of the gear discs B53 and C.

[0034] In this embodiment, by setting up a winding component 5 and monitoring the sensor unit module 27 and the drive motor 55 on the component 2, the drive motor 55 is powered off after receiving the fracture information, and the winding roller 52 stops winding, thereby preventing the PET film from being damaged.

[0035] It should be noted that the drive motor 55 is connected to the sensor unit module 27 by signal, and the power supply of the drive motor 55 can be cut off in time.

[0036] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to substitute equivalents for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention to solve the problems raised in the above background technology.

Claims

1. An intelligent production equipment for PET film, comprising a production equipment body, characterized in that: The invention comprises a drying box body (1), an observation window (11), a winding frame (12), a transmission roller (13), a toothed disc A (14), a chain A (15), a PET film body (16), a conveying roller (17), a monitoring component (2), a locking component (3), a smoothing component (4) and a winding component (5), wherein the drying box body (1) is arranged on one side of a material discharge port of a production equipment body, an observation window (11) is provided on the surface of the drying box body (1), an exhaust port is installed on the upper surface of the drying box body (1), a winding frame (12) is provided on one side of the material discharge port of the drying box body (1), and two transmission rollers (13) are rotatably mounted on the surface of the winding frame (12), one of which is A servo motor is installed at one end of the transmission roller (13), and a toothed disc A (14) is installed between the output end of the servo motor and the transmission roller (13). The two transmission rollers (13) are rotatably connected via a chain A (15). A plurality of conveying rollers (17) are rotatably arranged on the surface of the winding frame (12). The PET film body (16) is wound around the surfaces of the conveying rollers (17) and the transmission rollers (13). A monitoring component (2) is arranged at the discharge port of the drying box body (1). A locking component (3) is arranged on the surface of the winding frame (12). A smoothing component (4) is arranged on the surface of the locking component (3). The winding component (5) is installed at a position below the winding frame (12). The monitoring assembly (2) comprises a fixed plate (21), a mounting plate (22), a rotating roller (23), a slider (24), a guide groove (25), a connecting plate (26), a sensor unit module (27) and a spring A (28); a fixed plate (21) is mounted on the upper surface of the material outlet of the drying box body (1); two mounting plates (22) are symmetrically mounted on the lower surface of the fixed plate (21); a rotating roller (23) is arranged between the two mounting plates (22); and the sliders (24) are mounted on the rotating shafts at both ends of the rotating roller (23). 4), the slider (24) slides in a guide groove (25) provided on the surface of the mounting plate (22), a connecting plate (26) is installed on the surface of the mounting plate (22), a sensor unit module (27) is installed on the bottom surface of the connecting plate (26), a spring A (28) is provided below the sensor unit module (27), two ends of the spring A (28) are respectively connected to the sensor unit module (27) and the slider (24), and the sensor unit module (27) is signal-connected to the locking assembly (3) and the winding assembly (5).

2. The intelligent production equipment for PET film according to claim 1, characterized in that: The sliding block (24) is arranged in a convex shape.

3. The intelligent production equipment for PET film according to claim 1, characterized in that: The locking assembly (3) comprises a fixed frame (31), a movable block (32), a squeezing roller (33), an adjusting block (34), a mounting block (35), an electromagnetic suction cup A (36), an electromagnetic suction cup B (37), a cylindrical pin (38), a spring B (39), a limit block (312) and a spring C (313); a fixed frame (31) is mounted on one side of a surface of the winding frame (12); a movable block (32) is disposed at one end of the fixed frame (31); a squeezing roller (33) is disposed between two movable blocks (32); two ends of the squeezing roller (33) are rotatably connected to the movable block (32); an adjusting block (34) is mounted on one end of the movable block (32); the adjusting block (34) is plugged into the fixed frame (31); and two groups of mounting blocks (35) are symmetrically mounted on the surface of the fixed frame (31). ), an electromagnetic suction cup A (36) is installed in a blind groove provided inside the mounting block (35), an electromagnetic suction cup B (37) is provided on one side of the electromagnetic suction cup A (36), a cylindrical pin (38) is installed on one side surface of the electromagnetic suction cup B (37), one end of the cylindrical pin (38) passes through the mounting block (35) and abuts against the surface of the adjustment block (34), a spring B (39) is sleeved on the surface of the cylindrical pin (38), two ends of the spring B (39) are respectively connected to the electromagnetic suction cup B (37) and the mounting block (35), a spring C (313) is installed on one end surface of the adjustment block (34), the other end of the spring C (313) is connected to a limit block (312) installed in the fixing frame (31), and the elastic force of the spring C (313) is smaller than the contraction force of the spring B (39).

4. The intelligent production equipment for PET film according to claim 3, characterized in that: Positioning holes (310) are symmetrically formed on the surface of the adjustment block (34), and the cylindrical pin (38) is inserted into the positioning hole (310).

5. The intelligent production equipment for PET film according to claim 3, characterized in that: The surface of the adjustment block (34) is symmetrically provided with limiting grooves (311) of a square structure, and the inner wall of the insertion hole provided in the fixing frame (31) is provided with a protrusion matched with the limiting groove (311).

6. The intelligent production equipment for PET film according to claim 3, characterized in that: An alarm (314) is installed on the surface of the mounting block (35), and the alarm (314) is connected to the sensor unit module (27) by signal.

7. The intelligent production equipment for PET film according to claim 3, characterized in that: The smoothing assembly (4) comprises a smoothing plate (41) and a fixing seat (42); the smoothing plate (41) is arranged on the surface of the fixing frame (31); the smoothing plate (41) is mounted on the surface of the fixing frame (31) via the fixing seat (42); and one end surface of the smoothing plate (41) is fitted and connected to the driving roller (13).

8. The intelligent production equipment for PET film according to claim 7, characterized in that: A silicone sponge pad is installed on the surface of the smoothing plate (41) that contacts the driving roller (13).

9. The intelligent production equipment for PET film according to claim 1, characterized in that: The winding assembly (5) comprises a mounting seat (51), a winding roller (52), a toothed disc B (53), a chain B (54) and a driving motor (55); the mounting seat (51) is mounted on the surface of the winding frame (12); the mounting seat (51) is provided with a through hole and is rotatably connected to the winding roller (52) via a bearing; a toothed disc B (53) is mounted on one end of the rotating shaft of the winding roller (52); the driving motor (55) is mounted on the surface of the winding frame (12) at one side of the winding roller (52); a toothed disc C is mounted on the output shaft end of the driving motor (55); a chain B (54) is arranged between the toothed disc B (53) and the toothed disc C; the chain B (54) is meshedly connected to the surfaces of the toothed disc B (53) and the toothed disc C.

10. The intelligent production equipment for PET film according to claim 9, characterized in that: The drive motor (55) is signal-connected to the sensor unit module (27).