Slitting device for plastic film production

Abstract

The invention relates to the technical field of plastic film production, in particular to a slitting device for plastic film production. The slitting device comprises a machine body, a slitting mechanism, a temperature control mechanism and a slitting intelligent controller. The slitting mechanism comprises a main driving piece installed on the interval adjusting base, a cutting disc installed on an output shaft of the main driving piece, a protective cover installed on the outer side of the cutting disc and adjusting covers arranged at the two ends of the protective cover in a sleeving mode correspondingly. The temperature control mechanism comprises a temperature control cylinder, a backflow pipe communicated with the input end of the temperature control cylinder, a cooling pipe communicated with the output end of the temperature control cylinder and a cooling assembly installed on the temperature control cylinder. The slitting intelligent controller is provided with an analysis module, a heat dissipation module and a cooling module, by the adoption of the structure, the slitting intelligent controller adjusts the heat dissipation effect on the cutting disc in real time according to the temperature state of the cutting disc, an inner cavity of the temperature control cylinder is refrigerated through the cooling assembly, the heat dissipation effect on the cutting disc is enhanced, cold air is recycled, and energy is saved.

Description

Technical Field

[0001] The invention relates to a slitting device, in particular to a slitting device for plastic film production applied in the technical field of plastic film production. Background Art

[0002] Film slitting machines can accurately split large rolls of film as needed, and achieve customized production of film sizes to improve subsequent film production efficiency and optimize the utilization of film materials. Film slitting machines play a key role in packaging, printing, electronics and other fields, and are one of the indispensable tools for modern industrial production.

[0003] The invention patent with publication number CN117207279A discloses a slitting machine for film processing, including a bracket seat and a servo motor, the outer sides of the driving sprocket and the driven sprocket are connected with a transmission chain, the driving sprocket and the driven sprocket are connected through the transmission chain, a rotation locking component is arranged between the bracket seat and the servo motor, a spacing adjustment component is arranged inside the bracket seat, and a cutter grinding component is arranged on the front side of the spacing adjustment component; the rotating drum is driven to rotate by a crank rod, and since the limit rod is located in the return frame, the moving path of the rotating drum will be restricted, which will cause the U-shaped frame to deflect back and forth, drive the U-shaped frame to clamp the fixed column in turn to drive the wheel to rotate, and then drive the roller to rotate synchronously, and then drive the equidistant slide plate to slide along the slide rod along the trajectory of the equidistant arc groove through the ball bearing, and then adjust the spacing between the cutters, so that the width of the film strip will be changed, thereby achieving the effect of adjusting the cutting knife spacing and changing the width of the roll width.

[0004] When the above scheme is implemented, it cuts films of different widths by adjusting the spacing between the cutters. In order to improve production efficiency, a wider film will be produced and rolled onto a longer reel, and then customized slitting will be performed according to customer needs. In the prior art, when the cutter cuts the rolled film, the cutter will generate heat due to friction with the film during the cutting process. The heat on the cutter will gradually accumulate, causing the edges of the cut film to melt and stick together, affecting the quality of the cut film. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the cutter in the prior art cuts the rolled film, the cutter will generate heat due to the friction between the cutter and the film during the cutting process. The heat on the cutter will gradually accumulate, causing the edges of the cut film to melt and stick together, affecting the quality of the cut film.

[0006] In order to solve the above problems, the present invention provides a slitting device for producing plastic films, comprising:

[0007] A machine body, a driving roller is rotatably connected to the machine body, a slitting advancing block is transversely slidably connected to the bottom of the machine body, and a plurality of interval adjustment seats are longitudinally slidably connected to the upper end of the slitting advancing block;

[0008] A slitting mechanism, each spacing adjustment seat is equipped with a slitting mechanism, the slitting mechanism includes a main driving member installed with the spacing adjustment seat, a cutting disc installed on the output shaft of the main driving member, a protective cover installed on the outside of the cutting disc, and regulating covers respectively sleeved on both ends of the protective cover, the main driving member is used to drive the cutting disc to rotate, a regulating mechanism is arranged between the two regulating covers, the regulating mechanism is used to drive the two regulating covers to move along the circumferential direction of the protective cover, and a temperature sensor corresponding to the cutting disc is installed on the inner wall of the protective cover;

[0009] The temperature control mechanism is arranged corresponding to the slitting mechanism, and the temperature control mechanism includes a temperature control cylinder, a return pipe connected to the input end of the temperature control cylinder, a cooling pipe connected to the output end of the temperature control cylinder, and a cooling component installed on the temperature control cylinder. A circulating air pump is installed on the cooling pipe. The output end of the cooling pipe is connected to the inner side of one of the regulating covers, and the input end of the return pipe is connected to the inner side of the other regulating cover.

[0010] The slitting intelligent controller is installed on the machine body. An analysis module, a heat dissipation module and a cooling module are arranged on the slitting intelligent controller. The analysis module is electrically connected to the heat dissipation module, the cooling module and the temperature sensor respectively. The heat dissipation module is electrically connected to the regulating mechanism. The cooling module is electrically connected to the circulating air pump and the cooling component respectively.

[0011] In the above-mentioned slitting device for plastic film production, the heat dissipation effect of the cutting disk is adjusted in real time through the slitting intelligent controller according to the temperature state of the cutting disk, and the inner cavity of the temperature control cylinder is cooled by the cooling component to enhance the heat dissipation effect of the cutting disk, and the cold air is recycled to save energy.

[0012] As a further improvement of the present application, an open limit switch installed with the protective cover is provided on the side of the regulating cover away from the driving roller, and a closed limit switch installed with the interval adjustment seat is provided on the side of the regulating cover close to the driving roller, and the analysis module is electrically connected to the open limit switch and the closed limit switch respectively.

[0013] As a further improvement of the present application, the regulating mechanism includes a regulating drive member installed on the interval adjustment seat and a driving ring gear rotatably connected to the protective cover. The output end of the regulating drive member is linked with the driving ring gear through a gear set to drive the driving ring gear to rotate. Arc-shaped rack 1 and arc-shaped rack 2 are respectively provided on both sides of the driving ring gear. Arc-shaped rack 1 is fixed to the outer wall of one of the regulating covers, and arc-shaped rack 2 is fixed to the outer wall of the other regulating cover. The heat dissipation module is electrically connected to the regulating drive member.

[0014] As a further improvement of the present application, a reflux pipe and a temperature sensor are installed on the corresponding regulating cover at one end close to the driving roller, and sealing rings are fixedly installed on the outer rings of both ends of the protective cover.

[0015] As another improvement of the present application, a ventilation pipe is connected to one end of the temperature control cylinder close to the reflux pipe, a solenoid valve 1 is installed on the ventilation pipe, a temperature sensor 2 is installed in the inner cavity of the temperature control cylinder, the cooling module is electrically connected to the solenoid valve 1, and the analysis module is electrically connected to the temperature sensor 2.

[0016] As another improved supplement of the present application, the inner cavity of the temperature control cylinder is slidably connected to a piston plate, the middle part of the piston plate is connected to a balancing pipe, a second solenoid valve is installed on the balancing pipe, a second temperature sensor is installed on the side of the piston plate close to the reflux pipe, an elastic part is installed between the piston plate and the inner wall of the temperature control cylinder close to the reflux pipe, and the cooling module is electrically connected to the second solenoid valve.

[0017] As another improvement supplement of the present application, an upper limit switch is installed on one end of the inner wall of the temperature control cylinder close to the return pipe, and a lower limit switch is installed on one end of the inner wall of the temperature control cylinder close to the cooling pipe, and the cooling module is electrically connected to the upper limit switch and the lower limit switch respectively.

[0018] As another improvement of the present application, thermal conductive silicone grease is provided between the refrigeration end of the cooling component and the side wall of the temperature control cylinder, and the inner wall and the outer wall of the temperature control cylinder are covered with a thermal insulation layer.

[0019] To sum up, it can control the two regulating hoods to move apart through the regulating mechanism, increase the exposed area of ​​the cutting disk, use the ambient temperature to cool the cutting disk, save energy, and when the heat generated is high, adjust the heat dissipation effect of the cutting disk through the slitting intelligent controller. The cooling module controls the cooling component and the circulating air pump to cool the air in the inner cavity of the temperature control cylinder, and the circulating air pump delivers the cooling cycle to the cutting disk to increase the cooling effect of the cutting disk. At the same time, the heat dissipation module controls the operation of the regulating mechanism, and the regulating mechanism controls the two regulating hoods to move closer, reduce the exposed area of ​​the cutting disk, increase the contact time between the cold air and the cutting disk, improve the temperature control effect of the cutting disk, reduce the heat generated by the cutting disk, and improve the quality of the film after slitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0021] Figure 2 This is a schematic diagram of the structure of the slitting mechanism and the temperature control mechanism of the first and second embodiments of the present application;

[0022] Figure 3 This is a schematic diagram of the structure of the control cover after it is fully unfolded according to the first and second embodiments of the present application;

[0023] Figure 4 For this application Figure 3 The enlarged schematic diagram at A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the regulating cover after closing according to the first and second embodiments of the present application;

[0025] Figure 6 This is a control principle diagram of the split intelligent controller of the first embodiment of the present application;

[0026] Figure 7 It is a cross-sectional schematic diagram of the first and second embodiments of the present application when the temperature control cylinder cools the cutting disc;

[0027] Figure 8 This is a schematic diagram of the piston plate moving downward after the solenoid valve 2 is closed in the first and second embodiments of the present application;

[0028] Fig. 9 This is a schematic diagram of the piston plate moving up after the solenoid valve 2 is opened in the first and second embodiments of the present application;

[0029] Fig.10 This is a control principle diagram of the split intelligent controller of the second embodiment of the present application.

[0030] Description of the numbers in the figure:

[0031] 1. Machine body; 2. Intelligent controller for slitting; 3. Driving roller; 4. Slitting advancing block; 5. Interval adjustment seat; 6. Slitting mechanism; 7. Temperature control mechanism; 8. Main driving part; 9. Cutting disc; 10. Protective cover; 11. Control cover; 12. Control mechanism; 13. Open limit switch; 14. Close limit switch; 15. Cooling pipe; 16. Reflux pipe; 17. Temperature sensor 1; 18. Temperature control cylinder; 19. Circulating air pump; 20. Cooling component; 21. Ventilation pipe; 22. Solenoid valve 1; 23. Arc rack 1; 24. Arc rack 2; 25. Driving gear ring; 26. Control driving part; 27. Piston plate; 28. Balance pipe; 29. ​​Solenoid valve 2; 30. Temperature sensor 2; 31. Upper limit switch; 32. Elastic part; 33. Lower limit switch. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-Figure 6A slitting device for plastic film production is shown, including a body 1, a slitting mechanism 6, a temperature control mechanism 7 and a slitting intelligent controller 2. A driving roller 3 is rotatably connected to the body 1, a slitting advancing block 4 is laterally slidably connected to the bottom of the body 1, and a plurality of spacing adjustment seats 5 are longitudinally slidably connected to the upper end of the slitting advancing block 4. The entire rolled film is sleeved on the driving roller 3 and driven to rotate by the driving roller 3. A slitting mechanism 6 is installed on each spacing adjustment seat 5. The spacing between adjacent spacing adjustment seats 5 is controlled to adjust the spacing between adjacent slitting mechanisms 6, and the width of the film after slitting is adjusted. The slitting advancing block 4 is controlled to move toward the driving roller 3 to control the slitting mechanism 6 to slitting the film, thereby improving the slitting efficiency.

[0035] It is worth mentioning that see Figure 2-Figure 5 The slitting mechanism 6 includes a main driving member 8 installed with the spacing adjustment seat 5, a cutting disk 9 installed on the output shaft of the main driving member 8, a protective cover 10 installed on the outside of the cutting disk 9, and regulating covers 11 respectively sleeved on both ends of the protective cover 10. The main driving member 8 is used to drive the cutting disk 9 to rotate. A regulating mechanism 12 is arranged between the two regulating covers 11. The regulating mechanism 12 is used to drive the two regulating covers 11 to move along the circumferential direction of the protective cover 10. The two regulating covers 11 are driven to approach or move away by the regulating mechanism 12. A temperature sensor 17 corresponding to the cutting disk 9 is installed on the inner wall of the protective cover 10. The temperature of the cutting disk 9 during slitting is detected by the temperature sensor 17, and the position of the regulating cover 11 is adjusted as needed, and the exposed area of ​​the cutting disk 9 is adjusted, so as to adjust the heat dissipation effect of the cutting disk 9 according to the heat generation.

[0036] In addition, the temperature control mechanism 7 is arranged corresponding to the slitting mechanism 6, and the temperature control mechanism 7 includes a temperature control cylinder 18, a reflux pipe 16 connected to the input end of the temperature control cylinder 18, a cooling pipe 15 connected to the output end of the temperature control cylinder 18, and a cooling component 20 installed on the temperature control cylinder 18. The cooling component 20 is preferably a semiconductor refrigeration sheet. A circulating air pump 19 is installed on the cooling pipe 15. The output end of the cooling pipe 15 is connected to the inner side of one of the regulating covers 11, and the input end of the reflux pipe 16 is connected to the other. The inner side of a regulating cover 11 is connected, and cooling air is introduced into the cutting disk 9 through the temperature control mechanism 7 to dissipate heat for the cutting disk 9. The inner cavity of the temperature control cylinder 18 is cooled by the cooling component 20, and the circulating air pump 19 is controlled to operate, and the cold air in the inner cavity of the temperature control cylinder 18 is introduced into the cutting disk 9 through the cooling pipe 15, and the cold air is recovered to the temperature control cylinder 18 through the reflux pipe 16 on the other end of the regulating cover 11 for recycling, thereby improving the cooling effect on the cutting disk 9 and saving energy.

[0037] In this embodiment, the slitting intelligent controller 2 is installed on the machine body 1, and an analysis module, a heat dissipation module and a cooling module are provided on the slitting intelligent controller 2. The analysis module is electrically connected to the heat dissipation module, the cooling module and the temperature sensor 17 respectively, the heat dissipation module is electrically connected to the regulating mechanism 12, and the cooling module is electrically connected to the circulating air pump 19 and the cooling component 20 respectively. When the cutting disk 9 is driven by the main driving member 8 to cut the film, the temperature sensor 17 will detect the working temperature data of the cutting disk 9 and send it to the analysis module in real time. When the analysis module determines that the temperature of the cutting disk 9 is gradually rising, it sends a heat dissipation signal to the heat dissipation module. The heat dissipation module controls the regulating mechanism 12 to work, and the regulating mechanism 12 controls the two regulating covers 11 to move away, thereby increasing the exposed area of ​​the cutting disk 9 and using the ambient temperature to cool the cutting disk 9. When the temperature of the cutting disk 9 rises to the temperature threshold (the upper limit of the temperature of the cutting disk 9 when the environment is cooled is preset in the analysis module), the analysis module sends a cooling signal to the cooling module, and the cooling effect on the cutting disk 9 is increased through the cooling module. The cooling module controls the cooling component 20 and the circulating air pump 19 to cool the air in the inner cavity of the temperature control cylinder 18, and the circulating air pump 19 delivers the cooling cycle to the cutting disk 9, thereby increasing the cooling effect on the cutting disk 9. At the same time, the analysis module sends a control signal to the heat dissipation module, and the heat dissipation module controls the control mechanism 12 to work. The control mechanism 12 controls the two control covers 11 to move closer, thereby reducing the exposed area of ​​the cutting disk 9, increasing the contact time between the cold air and the cutting disk 9, improving the temperature control effect on the cutting disk 9, reducing the heat generated by the cutting disk 9, and improving the quality of the film after slitting.

[0038] It is worth mentioning that an open limit switch 13 installed with the protective cover 10 is provided on the side of the regulating cover 11 away from the driving roller 3, and a closed limit switch 14 installed with the interval adjustment seat 5 is provided on the side of the regulating cover 11 close to the driving roller 3. The analysis module is electrically connected to the open limit switch 13 and the closed limit switch 14 respectively. The cooling module controls the operation of the regulating mechanism 12, and the regulating mechanism 12 controls the movement of the regulating cover 11. When the regulating cover 11 abuts against the open limit switch 13, the cooling module receives the position signal of the open limit switch 13, and the analysis module determines that the regulating cover 11 has reached the upper limit of the expansion, and the cutting disk 9 needs to be cooled by the cooling module. The analysis module will send a cooling signal to the cooling module and send a control signal to the heat dissipation module. The heat dissipation module controls the operation of the regulating mechanism 12. The regulating mechanism 12 controls the two regulating covers 11 to be closer, reducing the exposed area of ​​the cutting disk 9. When the regulating cover 11 moves to abut against the closed limit switch 14, the analysis module determines that the regulating cover 11 has been closed in place. The analysis module controls the regulating mechanism 12 to stop working through the heat dissipation module, which is convenient for locating the position of the regulating cover 11 and judging the heat dissipation effect on the cutting disk 9, so as to start the corresponding heat dissipation work in time. The return pipe 16 and the temperature sensor 17 are installed on the corresponding regulating cover 11 at one end close to the driving roller 3. The cooling air discharged through the cooling pipe 15 can fully contact with the cutting disk 9 and be recycled through the return pipe 16. The outer rings at both ends of the protective cover 10 are fixedly installed with sealing rings to reduce the leakage of cooling air and increase the cooling effect on the cutting disk 9.

[0039] It is worth mentioning that see Figure 3 and Figure 4 The regulating mechanism 12 includes a regulating driving member 26 installed with the interval adjusting seat 5 and a driving ring gear 25 rotatably connected to the protective cover 10. The output end of the regulating driving member 26 is linked with the driving ring gear 25 through a gear set to drive the driving ring gear 25 to rotate. An arc-shaped rack 1 23 and an arc-shaped rack 2 24 are respectively arranged on both sides of the driving ring gear 25. The arc-shaped rack 1 23 is fixed to the outer wall of one of the regulating covers 11, and the arc-shaped rack 2 24 is fixed to the outer wall of the other regulating cover 11. The heat dissipation module is electrically connected to the regulating driving member 26, and the regulating driving member 26 is controlled to work through the heat dissipation module. The regulating driving member 26 drives the driving ring gear 25 to rotate, thereby controlling the arc-shaped rack 2 24 and the arc-shaped rack 1 23 to move away from or approach, thereby controlling the corresponding two regulating covers 11 to move closer or away, and controlling their coverage area of ​​the cutting disk 9.

[0040] The second implementation method:

[0041] Figure 2 and Figure 7-10The slitting device for plastic film production shown in the figure is different from the first embodiment in that a ventilation pipe 21 is connected to one end of the temperature control cylinder 18 close to the return pipe 16, a solenoid valve 22 is installed on the ventilation pipe 21, a temperature sensor 30 is installed in the inner cavity of the temperature control cylinder 18, a cooling module is electrically connected to the solenoid valve 22, and an analysis module is electrically connected to the temperature sensor 30. When the analysis module sends a cooling signal to the cooling module, the cooling module will first control the solenoid valve 22 to open, and introduce the outside air into the temperature control cylinder 18 through the ventilation pipe 21, and the ambient temperature gas is quickly blown to the cutting disk 9 to cool it down through the operation of the circulating air pump 19. At the same time, the analysis module determines whether the inner cavity temperature of the temperature control cylinder 18 is higher than a preset value (the analysis module has a preset upper limit value of the inner cavity temperature of the temperature control cylinder 18) through the temperature sensor 2 30. When it is judged that it is higher than the preset value, it is determined that the gas discharged from the temperature control cylinder 18 cannot effectively cool the cutting disk 9. At this time, the analysis module will control the cooling module to increase the cooling effect. The cooling module controls the solenoid valve 22 to close and the cooling component 20 to work. The cooling component 20 is used to actively reduce the inner cavity gas temperature of the temperature control cylinder 18. At the same time, the low-temperature gas discharged into the cutting disk 9 is recovered to the temperature control cylinder 18 through the reflux pipe 16 for recycling, thereby reducing energy consumption and improving the cooling effect.

[0042] In this implementation, see Figure 7-Figure 9 In order to fully cool the gas entering the inner cavity of the temperature control cylinder 18 and then discharge it to the cutting disk 9 through the cooling pipe 15, the inner cavity of the temperature control cylinder 18 is slidably connected with a piston plate 27, the middle of the piston plate 27 is connected with a balance pipe 28, and a solenoid valve 29 is installed on the balance pipe 28. The temperature sensor 30 is installed on the side of the piston plate 27 close to the return pipe 16. An elastic member 32 is installed between the piston plate 27 and the inner wall of the temperature control cylinder 18 close to the return pipe 16. The elastic member 32 is preferably an elastic rope, a spring or other elastic material. The cooling module is electrically connected to the solenoid valve 29. Then, the inner cavity of the temperature control cylinder 18 is separated by the piston plate 27, and the inner cavity of the temperature control cylinder 18 is divided into a cooling working cavity of the cooling component 20 and a heat preservation cavity that has been cooled, and the connection state of the two cavities is controlled by opening and closing the electromagnetic valve 29. An upper limit switch 31 is installed at one end of the inner wall of the temperature control cylinder 18 close to the return pipe 16, and a lower limit switch 33 is installed at one end of the inner wall of the temperature control cylinder 18 close to the cooling pipe 15. The cooling module is electrically connected to the upper limit switch 31 and the lower limit switch 33 respectively. When the cutting disc 9 is cooled by the ambient gas, as shown in FIG. Figure 7 As shown, the cooling module will control the electromagnetic valve 1 22 and the electromagnetic valve 2 29 to open, and the external air will enter the temperature control cylinder 18 through the ventilation pipe 21, and be discharged through the balance pipe 28 and the cooling pipe 15 to cool the cutting disk 9; when the cooling component 20 is needed to increase the cooling effect, such as Figure 8As shown, the cooling module controls the ventilation pipe 21 and the electromagnetic valve 29 to be closed. At this time, the circulating air pump 19 works to extract the gas at the bottom of the piston plate 27 to the cutting disk 9, and at the same time makes the piston plate 27 gradually descend. The gas flows into the top of the piston plate 27 through the return pipe 16, and the cooling component 20 continues to cool it. When the piston plate 27 moves down to contact with the lower limit switch 33, the cooling module determines that the gas at the bottom of the piston plate 27 has been almost exhausted, and controls the electromagnetic valve 29 to open. Fig. 9 As shown, the elastic force of the elastic member 32 is used to control the piston plate 27 to move up and reset. At this time, the gas at the top of the piston plate 27 that has been cooled by the cooling component 20 enters the bottom of the piston plate 27 through the balance pipe 28, and the cooled gas is quickly transferred to the bottom of the piston plate 27. When the piston plate 27 moves up and contacts the upper limit switch 31, the cooling module determines that the gas at the top of the piston plate 27 has been discharged into the bottom of the piston plate 27, and will control the solenoid valve 29 to close, repeatedly cooling the gas in the cavity at the top of the piston plate 27, so that the gas is fully cooled and transferred to the bottom of the piston plate 27, and discharged through the cooling pipe 15 to cool the cutting disk 9. After the gas entering the temperature control cylinder 18 is fully cooled, the cutting disk 9 can be cooled, thereby improving the cooling effect on the cutting disk 9.

[0043] Preferably, thermal conductive silicone grease is provided between the refrigeration end of the cooling component 20 and the side wall of the temperature control cylinder 18 to quickly introduce the low temperature generated by the cooling component 20 into the inner cavity of the temperature control cylinder 18, thereby improving the cooling effect on the gas in the temperature control cylinder 18. The inner and outer walls of the temperature control cylinder 18 are covered with an insulation layer to better preserve the low-temperature gas in the temperature control cylinder 18.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A slitting device for plastic film production, characterized in that: include: A machine body (1), wherein a driving roller (3) is rotatably connected to the machine body (1), a slitting advancing block (4) is transversely slidably connected to the bottom of the machine body (1), and a plurality of interval adjustment seats (5) are longitudinally slidably connected to the upper end of the slitting advancing block (4); A slitting mechanism (6), each of the spacing adjustment seats (5) is equipped with a slitting mechanism (6), the slitting mechanism (6) comprising a main driving member (8) installed with the spacing adjustment seat (5), a cutting disc (9) installed on the output shaft of the main driving member (8), a protective cover (10) installed outside the cutting disc (9), and regulating covers (11) respectively sleeved on both ends of the protective cover (10), the main driving member (8) is used to drive the cutting disc (9) to rotate, a regulating mechanism (12) is arranged between the two regulating covers (11), the regulating mechanism (12) is used to drive the two regulating covers (11) to move along the circumference of the protective cover (10), and a temperature sensor (17) corresponding to the cutting disc (9) is installed on the inner wall of the protective cover (10); A temperature control mechanism (7), the temperature control mechanism (7) being arranged corresponding to the slitting mechanism (6), the temperature control mechanism (7) comprising a temperature control cylinder (18), a return pipe (16) connected to the input end of the temperature control cylinder (18), a cooling pipe (15) connected to the output end of the temperature control cylinder (18), and a cooling component (20) installed on the temperature control cylinder (18), the cooling pipe (15) being installed with a circulating air pump (19), the output end of the cooling pipe (15) being connected to the inner side of one of the regulating covers (11), and the input end of the return pipe (16) being connected to the inner side of the other regulating cover (11); A slitting intelligent controller (2), the slitting intelligent controller (2) being mounted on a machine body (1), the slitting intelligent controller (2) being provided with an analysis module, a heat dissipation module and a temperature reduction module, the analysis module being electrically connected to the heat dissipation module, the temperature reduction module and a temperature sensor (17) respectively, the heat dissipation module being electrically connected to a regulating mechanism (12), and the temperature reduction module being electrically connected to a circulating air pump (19) and a temperature reduction component (20) respectively.

2. A slitting device for plastic film production according to claim 1, characterized in that: An open limit switch (13) mounted on the protective cover (10) is arranged on the side of the regulating cover (11) away from the driving roller (3), and a closed limit switch (14) mounted on the interval adjustment seat (5) is arranged on the side of the regulating cover (11) close to the driving roller (3), and the analysis module is electrically connected to the open limit switch (13) and the closed limit switch (14) respectively.

3. A slitting device for producing plastic film according to claim 2, characterized in that: The regulating mechanism (12) comprises a regulating driving member (26) mounted on the interval regulating seat (5) and a driving gear ring (25) rotatably connected to the protective cover (10); an output end of the regulating driving member (26) is linked to the driving gear ring (25) through a gear set and is used to drive the driving gear ring (25) to rotate; arc-shaped rack 1 (23) and arc-shaped rack 2 (24) are respectively arranged on both sides of the driving gear ring (25); the arc-shaped rack 1 (23) is fixed to the outer wall of one of the regulating covers (11), and the arc-shaped rack 2 (24) is fixed to the outer wall of the other regulating cover (11); and the heat dissipation module is electrically connected to the regulating driving member (26).

4. A slitting device for plastic film production according to claim 1, characterized in that: The reflux pipe (16) and the temperature sensor (17) are installed on the corresponding regulating cover (11) at one end close to the driving roller (3), and sealing rings are fixedly installed on the outer rings of both ends of the protective cover (10).

5. A slitting device for producing plastic film according to claim 1, characterized in that: One end of the temperature control cylinder (18) close to the return pipe (16) is connected to a ventilation pipe (21), and a solenoid valve (22) is installed on the ventilation pipe (21). The inner cavity of the temperature control cylinder (18) is installed with a temperature sensor (30). The cooling module is electrically connected to the solenoid valve (22), and the analysis module is electrically connected to the temperature sensor (30).

6. A slitting device for producing plastic film according to claim 5, characterized in that: The inner cavity of the temperature control cylinder (18) is slidably connected to a piston plate (27), the middle of the piston plate (27) is connected to a balance pipe (28), and a second solenoid valve (29) is installed on the balance pipe (28). The second temperature sensor (30) is installed on a side of the piston plate (27) close to the return pipe (16), and an elastic member (32) is installed between the piston plate (27) and the inner wall of the temperature control cylinder (18) close to the return pipe (16). The cooling module is electrically connected to the second solenoid valve (29).

7. A slitting device for producing plastic film according to claim 6, characterized in that: An upper limit switch (31) is installed at one end of the inner wall of the temperature control cylinder (18) close to the return pipe (16), and a lower limit switch (33) is installed at one end of the inner wall of the temperature control cylinder (18) close to the cooling pipe (15). The cooling module is electrically connected to the upper limit switch (31) and the lower limit switch (33) respectively.

8. A slitting device for producing plastic film according to claim 1, characterized in that: Thermally conductive silicone grease is provided between the refrigeration end of the cooling component (20) and the side wall of the temperature control cylinder (18), and the inner wall and the outer wall of the temperature control cylinder (18) are both covered with a thermal insulation layer.

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