Intelligent calendering system with online hydraulic compensation function

Abstract

The application discloses an intelligent calendering forming system with an online hydraulic compensation function and relates to the technical field of biomass new material processing. The double-screw extrusion mechanism comprises a mounting frame, an extrusion groove body is fixedly connected to the top of the mounting frame, and a feeding port is arranged at the top of the extrusion groove body. The hydraulic automatic counter-roller calendering mechanism comprises a first calendering roller and a second calendering roller. The application integrates the double-screw extrusion and the hydraulic automatic counter-roller calendering in the same production line, realizes direct online calendering forming of materials from a molten state, and completely discards the traditional indirect process of first extruding and granulating and then pressing. The online direct calendering method completely retains the fiber orientation structure and starch gelatinization network formed in the extrusion process, avoids the shearing damage of particle breakage to reinforcing materials such as bamboo fibers, makes the fibers maintain the original length-diameter ratio, and significantly improves the compressive strength of the final product compared with the indirect tabletting process.

Description

Technical Field

[0001] This invention relates to the field of biomass new material processing technology, specifically to a smart calendering system with online hydraulic compensation function. Background Technology

[0002] In fields such as biomass composite materials and pet supplies manufacturing, calendering systems are the core equipment for processing sheet blanks. They are mainly used to extrude and calender biomass mixtures such as starch and bamboo fiber into ultra-thin sheets. They are widely used in the continuous production of sheet cat litter and biodegradable sheets. Through the combination of extrusion, calendering and traction processes, they realize the forming and conveying of materials. They are key devices for improving the processing efficiency of biomass materials and achieving product standardization.

[0003] However, in practical applications, existing biomass composite material molding equipment requires extrusion granulation followed by pressing for sheeting, a cumbersome and energy-intensive process. Furthermore, the crushing process damages the original fiber structure, leading to decreased product strength. Simultaneously, the direct die-forming process struggles to precisely control thickness; the expansion and contraction of biomass material after leaving the die can cause fluctuations exceeding ±0.2mm, resulting in surface streaks. Additionally, high-temperature materials easily adhere to the traction rollers. Traditional roller calendering uses a constant pressure or gap mode, unable to adjust in real-time according to material fluctuations, lacking an online feedback mechanism. Even slight changes in material flow, temperature, or composition cause sheet thickness fluctuations, making product consistency difficult to guarantee. Existing control systems often employ offline sampling or PID regulation, resulting in slow response and significant lag, failing to meet the stringent thickness accuracy requirements of high-speed continuous production. Summary of the Invention

[0004] This invention provides an intelligent calendering system with online hydraulic compensation function to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A smart calendering system with online hydraulic compensation includes a twin-screw extrusion mechanism, which includes a mounting frame with an extrusion trough fixedly connected to the top of the mounting frame and a feed inlet at the top of the extrusion trough; a hydraulic automatic roller calendering mechanism, which includes a first calendering roller and a second calendering roller, with both ends of the first calendering roller rotatably connected to the inner wall of the mounting frame, and a first drive motor for driving the first calendering roller to rotate embedded at the connection between the end of the first calendering roller and the inner wall of the mounting frame; a cooling mechanism, which includes a cooling chamber, with both sides of the cooling chamber connected to the connectors at both ends of the first calendering roller and the second calendering roller respectively via a first connecting pipe and a second connecting pipe, and a circulating pump installed inside each of the first connecting pipes; a traction conveying mechanism, which includes a second motor with its surface fixedly connected to the surface of the mounting frame, and a traction roller fixedly connected to one end of the second motor shaft; and an intelligent control component, which includes a control terminal and a laser displacement sensor, with the control terminal fixedly mounted on the surface of the mounting frame and having a human-machine interface panel on its surface.

[0006] A further improvement of the technical solution of the present invention is that: a first motor is provided on one side of the extrusion tank, a first extrusion screw is fixedly connected to one end of the first motor shaft, and a first synchronous belt assembly is provided on the surface of the first motor shaft.

[0007] A further improvement of the technical solution of the present invention is that: the first synchronous belt assembly includes a synchronous pulley and a synchronous belt, the synchronous pulley is fixedly installed on the surface of the first motor shaft and the end of the second extrusion screw, the inner wall of the synchronous belt meshes with the surface of the synchronous pulley, and the end of the extrusion groove is provided with a flat extrusion port.

[0008] A further improvement of the technical solution of the present invention is that: both ends of the first calender roll and the second calender roll are fixedly connected to a connecting head, both inner walls of the first calender roll and the second calender roll are fixedly connected to a flow cavity reinforcing frame, the inside of the connecting head is rotatably sealed with a connecting piece, and both ends of the second calender roll are rotatably connected to an adjusting frame.

[0009] A further improvement of the technical solution of the present invention is that: a second drive motor for driving the second calendering roller to rotate is embedded at the connection between the inner wall of the adjusting frame and the second calendering roller; a sliding member is fixedly connected to the bottom of the adjusting frame; a slide rail is slidably connected inside the sliding member; the bottom of the slide rail is fixedly connected to the inner wall of the mounting frame; and an adjusting hydraulic cylinder is fixedly connected to one side of the adjusting frame.

[0010] A further improvement of the technical solution of the present invention is that: a semiconductor cooler is fixedly connected to the top of the cooling cavity, a cold end of the semiconductor cooler is provided at the lower end of the semiconductor cooler, and a hot end of the semiconductor cooler is provided at the upper end of the semiconductor cooler.

[0011] A further improvement of the technical solution of the present invention is that: the cold end of the refrigerator is placed inside the cooling chamber and immersed in the cooling medium inside the cooling chamber; the surface of the hot end of the refrigerator is covered with a heat dissipation hood; and a fan is fixedly connected to the inner wall of the heat dissipation hood.

[0012] A further improvement of the technical solution of the present invention is that: the surfaces at both ends of the traction roller are rotatably connected to the inner wall of the mounting frame, one end of the traction roller is fixedly connected to a linkage synchronous wheel, and a linkage synchronous belt is overlapped on the surface of the linkage synchronous wheel.

[0013] A further improvement of the technical solution of the present invention is that the traction conveying mechanism further includes a guide roller, which is disposed below the first calendering roller and the second calendering roller and is rotatably connected to the inner wall of the mounting frame.

[0014] A further improvement of the technical solution of the present invention is that the laser displacement sensor is disposed below the first calendering roll and the second calendering roll, and is fixedly connected to the inner wall of the mounting frame.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a smart calendering system with online hydraulic compensation. By integrating twin-screw extrusion and hydraulic automatic roller calendering into the same production line, it enables direct online calendering of materials from a molten state, completely eliminating the traditional indirect process of extrusion granulation followed by pressing. This online direct calendering method fully preserves the fiber orientation structure and starch gelatinization network formed during extrusion, avoiding shear damage to reinforcing materials such as bamboo fiber caused by particle breakage, maintaining the original aspect ratio of the fibers, and significantly improving the compressive strength of the final product compared to the indirect tableting process. It also eliminates cumbersome processes such as intermediate cooling, pelletizing, and reheating, significantly reducing energy consumption. Furthermore, a hydraulic servo system drives the adjusting frame to move the second calendering roller along the slide rail, and a laser displacement sensor detects the thickness in real time, constructing a high-speed closed-loop feedback control mechanism. When the thickness deviation exceeds ±0.05mm, the controller adjusts the hydraulic cylinder pressure via a proportional servo valve to dynamically compensate for thickness changes caused by fluctuations in material flow, temperature, or composition. This ensures the sheet thickness remains consistently within a high-precision range of 1.2mm ± 0.05mm, far superior to the ±0.2mm fluctuation of traditional die-setting. This significantly improves product consistency. Simultaneously, a flow cavity reinforcement frame is installed inside the first and second calendering rolls, connected to a cooling circulation system consisting of a cooling chamber, a circulating pump, and a semiconductor cooler, enabling cold roll demolding technology. Circulating cooling water at 15-20℃ instantly hardens the surface of the material after thermal gelatinization upon contact with the rolls, forming a hardened skin. This maintains internal plasticity for easy calendering while preventing adhesion issues, eliminating the need for manual demolding and significantly improving production efficiency compared to traditional processes. The intelligent control components integrate a human-machine interface panel, which can display the thickness curve in real time and record production data. Adapting to various biomass formulations, it achieves high-precision, high-efficiency, and highly adaptable intelligent calendering. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting bracket of the present invention; Figure 4 This is a schematic diagram of the hydraulic automatic roller calendering mechanism and traction conveying mechanism of the present invention; Figure 5 This is a schematic diagram of the twin-screw extrusion mechanism of the present invention; Figure 6 This is a schematic diagram of the hydraulic automatic roller calendering mechanism of the present invention; Figure 7 This is a schematic diagram of the exploded state structure of the twin-screw extrusion mechanism of the present invention; Figure 8 This is a schematic diagram of the exploded structure of the cooling mechanism of the present invention; Figure 9 This is a schematic cross-sectional view of the calendering roll structure of the present invention; Figure 10 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 11. Mounting frame; 12. Extrusion tank; 13. Feed inlet; 14. First motor; 15. First extrusion screw; 17. Second extrusion screw; 18. Flat extrusion nozzle; 21. First calendering roller; 22. Flow chamber reinforcement frame; 23. Second calendering roller; 24. Adjusting frame; 25. Sliding component; 26. Slide rail; 27. Adjusting hydraulic cylinder; 28. Connecting pipe head; 29. ​​Connecting component; 31. Cooling chamber; 32. First connecting pipe; 33. Circulating pump; 34. Semiconductor cooler; 35. Cold end of cooler; 36. Hot end of cooler; 37. Heat sink; 38. Fan; 39. Second connecting pipe; 41. Second motor; 42. Traction roller; 43. Linkage synchronous pulley; 44. Linkage synchronous belt; 45. Guide roller; 51. Control terminal; 52. Laser displacement sensor. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-10 As shown, the present invention provides a smart calendering system with online hydraulic compensation function, comprising: a twin-screw extrusion mechanism, the twin-screw extrusion mechanism including a mounting frame 11, an extrusion trough 12 fixedly connected to the top of the mounting frame 11, and a feed inlet 13 provided at the top of the extrusion trough 12; a hydraulic automatic roller calendering mechanism, the hydraulic automatic roller calendering mechanism including a first calendering roller 21 and a second calendering roller 23, the two ends of the first calendering roller 21 being rotatably connected to the inner wall of the mounting frame 11, and a first drive motor for driving the first calendering roller 21 to rotate being embedded at the connection between the end of the first calendering roller 21 and the inner wall of the mounting frame 11; and a cooling mechanism, the cooling mechanism including a cooling chamber. 31. The two sides of the inner cavity of the cooling chamber 31 are connected to the connectors 29 at both ends of the first calendering roller 21 and the second calendering roller 23 through the first connecting pipe 32 and the second connecting pipe 39, respectively. Each of the multiple first connecting pipes 32 is equipped with a circulation pump 33. The traction conveying mechanism includes a second motor 41. The surface of the second motor 41 is fixedly connected to the surface of the mounting frame 11. One end of the shaft of the second motor 41 is fixedly connected to the traction roller 42. The intelligent control component includes a control terminal 51 and a laser displacement sensor 52. The control terminal 51 is fixedly installed on the surface of the mounting frame 11. The surface of the control terminal 51 is provided with a human-machine interaction panel.

[0019] It should be noted that: the extrusion tank 12 is used for heating, shearing, and melting and mixing biomass materials; the feed inlet 13 is used for feeding raw materials such as cassava starch and bamboo fiber; the first calendering roller 21 and the second calendering roller 23 are arranged in parallel to form a roller calendering unit; the first drive motor drives the first calendering roller 21 to rotate; the cooling chamber 31 is used to store the cooling medium, which is transported to the inside of the roller through the first connecting pipe 32 and the second connecting pipe 39 by the circulating pump 33 for circulating cooling of the roller; the traction roller 42 is used to draw out the calendered sheet; the laser displacement sensor 52 detects the thickness of the calendered sheet in real time and transmits the signal to the control terminal 51; the human-machine interface panel is used to set process parameters and display real-time data.

[0020] In this embodiment, by directly connecting the twin-screw extrusion mechanism with the hydraulic automatic roller calendering mechanism, continuous online production of materials from extrusion to calendering is achieved, avoiding the intermediate pelletizing step. The cooling mechanism provides circulating cooling for the pressure rollers, allowing the high-temperature material to harden rapidly upon contact with the roller surface, effectively preventing adhesion. The intelligent control component monitors the thickness in real time, providing a basis for subsequent closed-loop feedback adjustment. The overall system has a compact structure and high functional integration, laying the foundation for high-precision and high-efficiency calendering.

[0021] Example 2, as Figures 1-10As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, it includes: a twin-screw extrusion mechanism, the twin-screw extrusion mechanism including a mounting frame 11, an extrusion trough 12 fixedly connected to the top of the mounting frame 11, and a feed inlet 13 provided at the top of the extrusion trough 12; a hydraulic automatic roller calendering mechanism, the hydraulic automatic roller calendering mechanism including a first calendering roller 21 and a second calendering roller 23, the two ends of the first calendering roller 21 being rotatably connected to the inner wall of the mounting frame 11, and a first drive motor for driving the first calendering roller 21 to rotate being embedded at the connection between the end of the first calendering roller 21 and the inner wall of the mounting frame 11; and a cooling mechanism, the cooling mechanism including a cooling chamber 31. The cooling chamber 31 has two sides connected to the connecting parts 29 at both ends of the first calendering roller 21 and the second calendering roller 23 via the first connecting pipe 32 and the second connecting pipe 39, respectively. Each of the multiple first connecting pipes 32 is equipped with a circulating pump 33. A traction conveying mechanism includes a second motor 41, the surface of which is fixedly connected to the surface of the mounting frame 11. One end of the shaft of the second motor 41 is fixedly connected to a traction roller 42. An intelligent control component includes a control terminal 51 and a laser displacement sensor 52. The control terminal 51 is fixedly mounted on the surface of the mounting frame 11 and has a human-machine interface panel on its surface. An extrusion groove is also included. A first motor 14 is provided on one side of the body 12. A first extrusion screw 15 is fixedly connected to one end of the shaft of the first motor 14. A first synchronous belt assembly is provided on the surface of the shaft of the first motor 14. The first synchronous belt assembly includes a synchronous pulley and a synchronous belt. The synchronous pulley is fixedly installed on the surface of the shaft of the first motor 14 and the end of the second extrusion screw 17. The inner wall of the synchronous belt meshes with the surface of the synchronous pulley. A flat extrusion port 18 is provided at the end of the extrusion groove 12. Both ends of the first calender roll 21 and the second calender roll 23 are fixedly connected to connecting heads 28. The inner walls of the first calender roll 21 and the second calender roll 23 are fixedly connected to flow cavity reinforcement frames 22. The inside of the connecting head 28 A connecting piece 29 is rotatably sealed and connected. An adjusting frame 24 is rotatably connected to both ends of the second calendering roller 23. A second drive motor for driving the second calendering roller 23 is embedded at the connection between the inner wall of the adjusting frame 24 and the second calendering roller 23. A sliding piece 25 is fixedly connected to the bottom of the adjusting frame 24. A slide rail 26 is slidably connected inside the sliding piece 25. The bottom of the slide rail 26 is fixedly connected to the inner wall of the mounting frame 11. An adjusting hydraulic cylinder 27 is fixedly connected to one side of the adjusting frame 24. A semiconductor cooler 34 is fixedly connected to the top of the cooling chamber 31. A cold end 35 is provided at the lower end of the semiconductor cooler 34, and a hot end 36 is provided at the upper end of the semiconductor cooler 34.

[0022] It should be noted that: the first motor 14 synchronously drives the first extrusion screw 15 and the second extrusion screw 17 to rotate through the first synchronous belt assembly, realizing twin-screw extrusion and improving the mixing effect; the flat extrusion nozzle 18 extrudes the molten material into sheet-like billets; the pipe head 28 serves as the interface for the cooling medium to enter and exit the pressure roller, and the connector 29 achieves a sealed connection in the rotating state; the flow cavity reinforcement frame 22 supports the internal structure of the pressure roller and guides the uniform flow of the cooling medium; the adjustment frame 24 slides on the slide rail 26 through the sliding member 25 to realize the position adjustment of the second calendering roller 23 relative to the first calendering roller 21; the adjustment hydraulic cylinder 27 drives the adjustment frame 24 to move, thereby precisely controlling the roller gap between the two rollers; the cold end 35 of the semiconductor cooler 34 is immersed in the cooling medium in the cooling chamber 31 to actively cool the medium, and the hot end 36 of the cooler dissipates heat through the heat sink 37 and the fan 38.

[0023] In this embodiment, the twin-screw extrusion mechanism ensures that the material is fully plasticized and mixed, providing a homogeneous blank for calendering; the flow cavity reinforcement frame 22 enhances the structural strength of the pressure roller and optimizes the flow channel distribution of the cooling medium, making the roller surface temperature uniform; the adjusting hydraulic cylinder 27, in conjunction with the sliding component 25 and the slide rail 26, enables rapid and precise adjustment of the roller gap with a fast response speed; the active cooling method of the semiconductor cooler 34 keeps the cooling medium temperature stably controlled within the optimal range of 15-20℃, ensuring the demolding effect of the cold roller.

[0024] Example 3, as Figures 1-10As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, comprising: a twin-screw extrusion mechanism, the twin-screw extrusion mechanism including a mounting frame 11, the top of the mounting frame 11 being fixedly connected to an extrusion trough 12, the top of the extrusion trough 12 being provided with a feed inlet 13; a hydraulic automatic roller calendering mechanism, the hydraulic automatic roller calendering mechanism including a first calendering roller 21 and a second calendering roller 23, the two ends of the first calendering roller 21 being rotatably connected to the inner wall of the mounting frame 11, and a first drive motor for driving the first calendering roller 21 to rotate being embedded at the connection between the end of the first calendering roller 21 and the inner wall of the mounting frame 11; a cooling mechanism, the cooling mechanism including a cooling chamber 31, the two sides of the inner cavity of the cooling chamber 31 being connected to the connecting parts 29 at both ends of the first calendering roller 21 and the second calendering roller 23 respectively through a first connecting pipe 32 and a second connecting pipe 39, and a circulating pump 33 being provided inside each of the multiple first connecting pipes 32; a traction conveying mechanism, the traction conveying mechanism including a second motor 41, the surface of the second motor 41 being connected to the surface of the mounting frame 11. The second motor 41 is fixedly connected to a traction roller 42 at one end of its shaft. An intelligent control component, including a control terminal 51 and a laser displacement sensor 52, is also included. The control terminal 51 is fixedly mounted on the surface of the mounting frame 11, and its surface has a human-machine interface panel. The cold end 35 of the cooler is placed inside the cooling chamber 31 and immersed in the cooling medium within the chamber. The surface of the hot end 36 of the cooler is covered with a heat dissipation shroud 37, and a fan 38 is fixedly connected to the inner wall of the heat dissipation shroud 37. The surfaces at both ends of the traction roller 42 are rotatably connected to the inner wall of the mounting frame 11. One end of the traction roller 42 is fixedly connected to a synchronous pulley 43, and a synchronous belt 44 overlaps the surface of the synchronous pulley 43. The traction conveying mechanism also includes a guide roller 45, which is located below the first calendering roller 21 and the second calendering roller 23 and rotatably connected to the inner wall of the mounting frame 11. The laser displacement sensor 52 is located below the first calendering roller 21 and the second calendering roller 23 and is fixedly connected to the inner wall of the mounting frame 11.

[0025] It should be noted that: the heat sink 37 and the fan 38 are used to accelerate the heat dissipation of the hot end 36 of the cooler and ensure the cooling efficiency of the semiconductor cooler 34; the linkage synchronous pulley 43 and the linkage synchronous belt 44 are used to realize the synchronous rotation between multiple traction rollers 42 to ensure the smooth conveying of the sheet; the guide roller 45 is set below the calendering roller to guide the sheet smoothly into the traction roller 42; the laser displacement sensor 52 is installed on the exit side of the calendering roller directly opposite the sheet to measure the thickness in real time in a non-contact manner, with high measurement accuracy and fast response.

[0026] In this embodiment, heat dissipation is enhanced by a heat sink and a fan to ensure the long-term stable operation of the semiconductor cooler and maintain a constant temperature of the cooling medium; the linkage synchronization mechanism enables the traction rollers to rotate synchronously, preventing the sheet from being stretched or wrinkled during the conveying process; the guide rollers optimize the conveying path of the sheet and prevent interference between the sheet and the frame; the high-frequency sampling of the laser displacement sensor provides a precise thickness signal for hydraulic feedback adjustment, ensuring the timeliness and accuracy of closed-loop control.

[0027] The working principle of this intelligent calendering system with online hydraulic compensation function will be explained in detail below.

[0028] like Figures 1-10 As shown, during operation, a mixture of biomass materials such as cassava starch and bamboo fiber is first fed into the extrusion tank 12 through the feed inlet 13. The first motor 14 drives the first extrusion screw 15 and the second extrusion screw 17 to rotate synchronously via the first synchronous belt assembly, heating, shearing, and melting the material to form a uniform molten material. The material is extruded through the flat extrusion nozzle 18 to form a sheet-like billet with a thickness of approximately 2.2 mm. The billet immediately enters the roller calendering zone composed of the first calendering roller 21 and the second calendering roller 23. The first drive motor and the second drive motor respectively drive the two rollers to rotate in opposite directions, calendering the billet to the target thickness. Simultaneously, the cooling mechanism operates: the cold end 35 of the semiconductor cooler 34 actively cools the cooling medium in the cooling chamber 31, controlling the temperature at 15-20℃; the circulating pump 33 delivers the cooling medium through the first connecting pipe 32 and the second connecting pipe 39 to the flow chamber reinforcement frame 22 inside the first calendering roll 21 and the second calendering roll 23, and after flowing through the pipe head 28, it circulates back to the cooling chamber 31, keeping the surface of the rolls at a low temperature. High-temperature materials harden rapidly upon contact with the cold roll surface, forming a hardened skin to prevent adhesion. The calendered sheet is guided by the guide roller 45 and enters the traction roller 42. The second motor 41 drives the traction roller 42 to rotate synchronously through the linkage synchronous wheel 43 and the linkage synchronous belt 44, smoothly drawing out the sheet. During this process, the laser displacement sensor 52 detects the sheet thickness in real time at a sampling frequency of not less than 200Hz and transmits the signal to the control terminal 51. The control terminal 51 compares the measured thickness with the preset target value. When the deviation exceeds ±0.05mm, the control terminal 51 immediately outputs a control signal to the proportional servo valve of the adjusting hydraulic cylinder 27. The adjusting hydraulic cylinder 27 drives the adjusting frame 24, causing the sliding member 25 to move along the slide rail 26, thereby precisely adjusting the roll gap between the second calendering roll 23 and the first calendering roll 21, restoring the thickness to the target range within 0.1 seconds. The entire process forms a high-speed closed-loop feedback control, ensuring that the sheet thickness remains stable within the ±0.05mm tolerance for a long period. The formed sheet is output by the traction roller 42 to subsequent drying, cutting, and other units. The human-machine interface panel displays the thickness curve, alarm information, and process parameters in real time, allowing operators to set parameters and monitor the operating status through the panel.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A smart calendering system with online hydraulic compensation function, characterized in that: include: A twin-screw extrusion mechanism, the twin-screw extrusion mechanism includes a mounting frame (11), the top of the mounting frame (11) is fixedly connected to an extrusion tank (12), and the top of the extrusion tank (12) is provided with a feed inlet (13). The hydraulic automatic roller calendering mechanism includes a first calendering roller (21) and a second calendering roller (23). The two ends of the first calendering roller (21) are rotatably connected to the inner wall of the mounting frame (11). A first drive motor for driving the first calendering roller (21) to rotate is embedded at the connection between the end of the first calendering roller (21) and the inner wall of the mounting frame (11). The cooling mechanism includes a cooling chamber (31). The two sides of the inner cavity of the cooling chamber (31) are connected to the connectors (29) at both ends of the first calendering roll (21) and the second calendering roll (23) through the first connecting pipe (32) and the second connecting pipe (39), respectively. A circulation pump (33) is provided inside each of the multiple first connecting pipes (32). The traction conveying mechanism includes a second motor (41), the surface of the second motor (41) is fixedly connected to the surface of the mounting frame (11), and a traction roller (42) is fixedly connected to one end of the shaft of the second motor (41). The intelligent control component includes a control terminal (51) and a laser displacement sensor (52). The control terminal (51) is fixedly mounted on the surface of the mounting bracket (11), and the surface of the control terminal (51) is provided with a human-machine interaction panel.

2. The intelligent calendering system with online hydraulic compensation function according to claim 1, characterized in that: A first motor (14) is provided on one side of the extrusion tank (12), and a first extrusion screw (15) is fixedly connected to one end of the shaft of the first motor (14). A first synchronous belt assembly is provided on the surface of the shaft of the first motor (14).

3. The intelligent calendering system with online hydraulic compensation function according to claim 2, characterized in that: The first synchronous belt assembly includes a synchronous pulley and a synchronous belt. The synchronous pulley is fixedly installed on the surface of the shaft of the first motor (14) and the end of the second extrusion screw (17). The inner wall of the synchronous belt meshes with the surface of the synchronous pulley. The end of the extrusion groove (12) is provided with a flat extrusion port (18).

4. The intelligent calendering system with online hydraulic compensation function according to claim 1, characterized in that: Both ends of the first calender roll (21) and the second calender roll (23) are fixedly connected to pipe heads (28), and both inner walls of the first calender roll (21) and the second calender roll (23) are fixedly connected to flow cavity reinforcing frames (22). The inside of the pipe head (28) is rotatably sealed with a connector (29), and both ends of the second calender roll (23) are rotatably connected to adjusting frames (24).

5. The intelligent calendering system with online hydraulic compensation function according to claim 4, characterized in that: The inner wall of the adjusting frame (24) is fitted with a second drive motor that drives the second calendering roller (23) to rotate at the connection between the inner wall of the adjusting frame (24) and the second calendering roller (23). A sliding member (25) is fixedly connected to the bottom of the adjusting frame (24). A slide rail (26) is slidably connected inside the sliding member (25). The bottom of the slide rail (26) is fixedly connected to the inner wall of the mounting frame (11). An adjusting hydraulic cylinder (27) is fixedly connected to one side of the adjusting frame (24).

6. The intelligent calendering system with online hydraulic compensation function according to claim 1, characterized in that: A semiconductor cooler (34) is fixedly connected to the top of the cooling cavity (31). The lower end of the semiconductor cooler (34) is provided with a cold end (35), and the upper end of the semiconductor cooler (34) is provided with a hot end (36).

7. The intelligent calendering system with online hydraulic compensation function according to claim 6, characterized in that: The cold end (35) of the refrigerator is placed inside the cooling chamber (31) and immersed in the cooling medium inside the cooling chamber (31). The surface of the hot end (36) of the refrigerator is covered with a heat dissipation hood (37), and a fan (38) is fixedly connected to the inner wall of the heat dissipation hood (37).

8. The intelligent calendering system with online hydraulic compensation function according to claim 1, characterized in that: The surfaces at both ends of the traction roller (42) are rotatably connected to the inner wall of the mounting frame (11). One end of the traction roller (42) is fixedly connected to a linkage synchronous wheel (43), and a linkage synchronous belt (44) overlaps the surface of the linkage synchronous wheel (43).

9. The intelligent calendering system with online hydraulic compensation function according to claim 8, characterized in that: The traction conveying mechanism also includes a guide roller (45), which is located below the first calendering roller (21) and the second calendering roller (23) and is rotatably connected to the inner wall of the mounting frame (11).

10. The intelligent calendering system with online hydraulic compensation function according to claim 1, characterized in that: The laser displacement sensor (52) is located below the first calendering roll (21) and the second calendering roll (23) and is fixedly connected to the inner wall of the mounting frame (11).

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