Self-adaptive thickness adjusting cast film machine and adjusting method

Abstract

The invention discloses a self-adaptive thickness adjusting cast film machine and an adjusting method, and relates to the technical field of cast film machines.The self-adaptive thickness adjusting cast film machine comprises a machining table, a support is fixedly installed at the top of the machining table, a crushing box and a melting box are fixedly installed on the support, the crushing box communicates with the melting box, and a feeding hopper fixedly communicates with the top of the crushing box; the cast film machine further comprises a discharging pipe, the top end of the discharging pipe is fixedly communicated with the bottom of the melting box, and a film blowing assembly is installed at the top of the discharging pipe. The left end of the processing box fixedly communicates with the bottom end of the discharging pipe, two fixing rods are fixedly installed at the bottom of the processing box, the bottom ends of the two fixing rods are both fixedly installed at the top of the processing table, and a supporting plate is fixedly installed at the right end of the processing box; according to the casting film machine, controllable adjustment of the thickness and the width during casting film forming is achieved through a simple structure, the applicability of the casting film machine is improved, operation is convenient, time and labor are saved, and practicability is high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a casting film machine, in particular to a self-adaptive thickness-adjusted casting film machine and a thickness adjusting method. BACKGROUND

[0002] The casting machine is an important equipment for producing various plastic films, and the performance of the casting machine directly affects the quality and yield of the films. In the production process of EVA films, the thickness adjusting mechanism of the casting machine plays a key role in controlling the thickness uniformity of the EVA films.

[0003] In the prior art, in the production process of the casting film, plastic raw materials are first melted into a molten state, and then the casting film is made through the film blowing assembly of the casting film machine, and the made casting film is conveyed through the conveying roller of the casting machine. However, since the positions of the upper die sheet and the lower die sheet of the film blowing assembly are fixed, the gap width between the upper die sheet and the lower die sheet is fixed, and the thickness of the casting film cannot be adjusted. Therefore, the self-adaptive thickness-adjusted casting film machine and the thickness adjusting method are proposed to solve the above problems. SUMMARY

[0004] The application aims to provide a self-adaptive thickness-adjusted casting film machine and a thickness adjusting method to solve the problem that, in the production process of the casting film, plastic raw materials are first melted into a molten state, and then the casting film is made through the film blowing assembly of the casting film machine, and the made casting film is conveyed through the conveying roller of the casting machine. However, since the positions of the upper die sheet and the lower die sheet of the film blowing assembly are fixed, the gap width between the upper die sheet and the lower die sheet is fixed, and the thickness of the casting film cannot be adjusted.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a self-adaptive thickness-adjusted casting film machine, comprising a processing table, a support fixedly installed on the top of the processing table, a crushing box and a melting box fixedly installed on the support, the crushing box and the melting box being connected in communication, a feeding hopper fixedly communicated with the top of the crushing box, and the casting film machine further comprising: a discharge pipe, the top end of the discharge pipe being fixedly communicated with the bottom of the melting box, and the top of the discharge pipe being provided with a film blowing assembly; a processing box, the left end of the processing box being fixedly communicated with the bottom end of the discharge pipe, two fixed rods being fixedly installed on the bottom of the processing box, the bottom ends of the two fixed rods being fixedly installed on the top of the processing table, and a supporting plate being fixedly installed on the right end of the processing box; The thickness adjusting assembly comprises a screw rod, a lifting plate, a scraper, a marker and a scale, the bottom end of the screw rod is rotationally connected to the top of the processing box, the lifting plate is threadedly sleeved on the screw rod, the bottom of the scraper is fixedly installed on the bottom of the lifting plate, the bottom end of the scraper penetrates through the top of the processing box and extends into the inside of the processing box, the marker is fixedly installed on the left end of the lifting plate, the left end of the marker is matched with the scale, and the bottom end of the scale is fixedly installed on the top of the processing box. The width adjusting assembly is arranged in the inside of the processing box and is matched with the scraper. The flattening assembly is arranged on the top of the processing table and is used for flattening the surface of the formed cast film. The winding device is fixedly installed on the top of the processing table.

[0006] Through the above structure, the film material is added into the inside of the feeding hopper, then crushed in the crushing box and heated in the inside of the melting box, at this time, the heated film material is discharged through the discharge pipe, and then the molten material is blown into the inside of the processing box through the film blowing assembly to be cooled and formed. During the forming of the molten material, the molten material moves to the outside of the processing box, the rotating screw rod and the threaded connection between the screw rod and the lifting plate drive the lifting plate and the scraper to move up and down. The scraper moves up or down to adjust the distance between the bottom end of the scraper and the inner wall of the bottom of the processing box, so as to adjust the forming thickness of the cast film. The cooperation between the marker and the scale can accurately reflect the distance between the bottom end of the scraper and the inner wall of the bottom of the processing box, so as to facilitate the personnel to adjust the forming thickness of the cast film.

[0007] Preferably, the bottom of the lifting plate is fixedly provided with a stabilizing rod, and the bottom end of the stabilizing rod penetrates through the top of the processing box and is fixedly installed on the right side of the scraper.

[0008] Further, the stability of the scraper can be improved by arranging the stabilizing rod.

[0009] Preferably, the width adjusting assembly comprises a motor, a double-shaft screw rod, two width plates and two scale plates, the motor is fixedly installed on the front side of the processing box, the output shaft of the motor penetrates through the front side of the processing box and extends into the inside of the processing box, the front end of the double-shaft screw rod is fixedly installed on the output shaft of the motor, the rear end of the double-shaft screw rod is rotationally connected to the inner wall of the rear side of the processing box, the top end and the bottom end of the two width plates are respectively slidably connected to the top inner wall and the bottom inner wall of the processing box, the two width plates are threadedly sleeved on the double-shaft screw rod, and the ends close to each other of the two scale plates respectively penetrate through the front side and the rear side of the processing box and are fixedly connected to the left ends of the two width plates. The right ends of the two width plates are in sliding contact with the left side of the scraper.

[0010] Furthermore, by starting the motor, the dual-axis lead screw can be driven to rotate. At this time, through the threaded connection between the dual-axis lead screw and the two width plates, the two width plates can be driven to move closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates, the forming width of the cast film can be precisely adjusted.

[0011] Preferably, the top of the processing box has two grooves, and the top of the width plate has two sliders fixedly installed, which are slidably connected in the corresponding grooves.

[0012] Furthermore, through the sliding limit cooperation between the slider and the groove, the width plate can be stably limited and supported by sliding.

[0013] Preferably, sealing sleeves are fixedly installed on both the front and rear sides of the processing box, and the sealing sleeves are slidably fitted onto the corresponding scale plates.

[0014] Furthermore, by setting a sealing sleeve, leakage of the cast film after hot melting can be prevented.

[0015] Preferably, the flattening assembly includes a mounting frame, two electric push rods, two moving blocks, a first support roller, and a second support roller. The mounting frame is fixedly installed on the top of the processing table and has two mounting holes. The electric push rods are fixedly installed on the top inner wall of the corresponding mounting holes. The moving blocks are slidably connected in the corresponding mounting holes. The output shaft of the electric push rod is fixedly installed on the top of the corresponding moving block. The front end and rear end of the first support roller are rotatably connected to the sides of the two moving blocks that are close to each other. The front end and rear end of the second support roller are rotatably connected to the front inner wall and the rear inner wall of the mounting frame, respectively.

[0016] Furthermore, by passing the formed cast film between the first and second support rollers, and then by activating two electric push rods, two moving blocks can be moved downwards, thereby moving the first support roller downwards and cooperating with the second support roller to squeeze and limit the cast film. Here, the distance between the first and second support rollers should be appropriate to prevent deformation caused by the squeezing force between the first and second support rollers, while flattening any uneven areas on the surface of the formed cast film, thus ensuring the quality of the cast film.

[0017] Preferably, the top of the processing table is rotatably connected to a guide roller, which cooperates with the first support roller, the second support roller and the winding device respectively.

[0018] Furthermore, by setting guide rollers, the cast film can be stably guided and supported, which makes it easier for the winding equipment to wind the cast film.

[0019] This invention also proposes an adaptive thickness adjustment method for a casting film machine, comprising the following steps: S1: First, connect the crushing box, melting box, blown film assembly, motor, electric push rod and winding equipment to the external power supply; S2: The film material is added into the hopper, then crushed in the crushing box and then melted in the melting box. The melted film material is discharged through the discharge pipe, and the molten material is blown into the processing box through the blown film assembly for cooling and forming. S3: Then, by rotating the screw and connecting it with the lifting plate through the threaded connection, the lifting plate and the scraper can be driven to move up and down. By moving the scraper up or down, the distance between the bottom end of the scraper and the inner wall of the bottom of the processing box can be adjusted, thereby adjusting the forming thickness of the cast film. The cooperation between the scale and the ruler can accurately reflect the distance between the bottom end of the scraper and the inner wall of the bottom of the processing box, making it easy for personnel to adjust the forming thickness of the cast film. S4: In addition, starting the motor can drive the dual-axis lead screw to rotate. At this time, through the threaded connection between the dual-axis lead screw and the two width plates, the two width plates can be moved closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates, the forming width of the cast film can be precisely adjusted. S5: By passing the formed cast film between the first support roller and the second support roller, and then by activating two electric push rods, two moving blocks can be moved down, thereby moving the first support roller down and cooperating with the second support roller to squeeze and limit the cast film. Finally, the cast film is guided and supported by the guide roller and then wound up by the winding equipment.

[0020] The beneficial effects of this invention are: 1. By rotating the screw and connecting it with the lifting plate via a threaded connection, the lifting plate and scraper can be moved up and down. The upward or downward movement of the scraper can adjust the distance between the bottom of the scraper and the inner wall of the bottom of the processing box, thereby adjusting the forming thickness of the cast film. The cooperation between the scale and the ruler can accurately reflect the distance between the bottom of the scraper and the inner wall of the bottom of the processing box, making it easy for personnel to adjust the forming thickness of the cast film. 2. By starting the motor, the dual-axis lead screw can be driven to rotate. At this time, through the threaded connection between the dual-axis lead screw and the two width plates, the two width plates can be driven to move closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates, the forming width of the cast film can be precisely adjusted. 3. By passing the formed cast film between the first support roller and the second support roller, and then by activating two electric push rods, two moving blocks can be moved down, thereby moving the first support roller down and cooperating with the second support roller to squeeze and limit the cast film. Here, the distance between the first support roller and the second support roller should be appropriate to prevent deformation caused by the squeezing force between the first support roller and the second support roller, and at the same time, to flatten the uneven areas on the surface of the formed cast film, ensuring the quality of the cast film. This invention achieves controllable adjustment of the thickness and width of the cast film during casting through a simple structure, improving the applicability of the cast film machine. It is also easy to operate, saves time and effort, and is highly practical. Attached Figure Description

[0021] Figure 1 This is a structural front view of an embodiment of this application; Figure 2 Appendix to the embodiments of this application Figure 1 A schematic diagram of the structure of part A; Figure 3 This is a front view of the structure of the discharge pipe and processing box according to an embodiment of this application; Figure 4 This is a top sectional view of the processing box according to an embodiment of this application; Figure 5 This is a three-dimensional structural diagram of the bracket, mounting hole, electric push rod, moving block, first support roller and second support roller according to an embodiment of this application.

[0022] In the diagram: 1. Processing table; 2. Support frame; 3. Crushing box; 4. Feeding hopper; 5. Melting box; 6. Discharge pipe; 7. Blown film assembly; 8. Processing box; 9. Fixing rod; 10. Support plate; 11. Screw; 12. Lifting plate; 13. Scraper; 14. Stabilizing rod; 15. Marker; 16. Scale; 17. Motor; 18. Dual-axis lead screw; 19. Width plate; 20. Sliding block; 21. Slide groove; 22. Scale plate; 23. Sealing sleeve; 24. Mounting bracket; 25. Mounting hole; 26. Electric push rod; 27. Moving block; 28. First support roller; 29. ​​Second support roller; 30. Guide roller; 31. Winding device. Detailed Implementation

[0023] The present invention will be further explained below with reference to specific embodiments.

[0024] refer to Figures 1-5 This embodiment proposes an adaptive thickness adjustment casting film machine, including a processing table 1, a support 2 fixedly mounted on the top of the processing table 1, a crushing box 3 and a melting box 5 fixedly mounted on the support 2, the crushing box 3 and the melting box 5 being connected, and a feeding hopper 4 fixedly connected to the top of the crushing box 3. The casting film machine also includes: The top end of the discharge pipe 6 is fixedly connected to the bottom of the melting box 5, and the top of the discharge pipe 6 is equipped with a blown film assembly 7. The processing box 8 has its left end fixedly connected to the bottom end of the discharge pipe 6. Two fixing rods 9 are fixedly installed at the bottom of the processing box 8, and the bottom ends of the two fixing rods 9 are fixedly installed on the top of the processing table 1. A support plate 10 is fixedly installed at the right end of the processing box 8. The thickness adjustment assembly includes: a screw 11, a lifting plate 12, a scraper 13, a scale rod 15, and a ruler 16. The bottom end of the screw 11 is rotatably connected to the top of the processing box 8. The lifting plate 12 is threaded onto the screw 11. The bottom of the scraper 13 is fixedly installed on the bottom of the lifting plate 12. The bottom end of the scraper 13 passes through the top of the processing box 8 and extends into the interior of the processing box 8. The scale rod 15 is fixedly installed on the left end of the lifting plate 12. The left end of the scale rod 15 cooperates with the ruler 16. The bottom end of the ruler 16 is fixedly installed on the top of the processing box 8. Width adjustment component, which is located inside the processing box 8 and cooperates with scraper 13; A flattening assembly is installed on the top of the processing table 1. The flattening assembly is used to flatten the surface of the cast film after it has been formed. The winding device 31 is fixedly installed on the top of the processing table 1.

[0025] With the above structure, film material is added into the feeding hopper 4, then crushed by the crushing box 3 and melted in the melting box 5. The melted film material is then discharged through the discharge pipe 6, and the molten material is blown into the processing box 8 through the blown film assembly 7 for cooling and forming. During the forming process, the molten material moves to the outside of the processing box 8. By rotating the screw 11 and connecting it with the lifting plate 12 through the threaded connection, the lifting plate 12 and the scraper 13 can move up and down. The upward or downward movement of the scraper 13 can adjust the distance between the bottom of the scraper 13 and the bottom inner wall of the processing box 8, thereby adjusting the forming thickness of the cast film. The cooperation between the scale rod 15 and the ruler 16 can accurately reflect the distance between the bottom of the scraper 13 and the bottom inner wall of the processing box 8, making it easy for personnel to adjust the forming thickness of the cast film.

[0026] In this embodiment, a stabilizing rod 14 is fixedly installed at the bottom of the lifting plate 12. The bottom end of the stabilizing rod 14 passes through the top of the processing box 8 and is fixedly installed on the right side of the scraper 13. By setting the stabilizing rod 14, the stability of the scraper 13 can be improved.

[0027] In this embodiment, the width adjustment assembly includes a motor 17, a dual-axis lead screw 18, two width plates 19, and two scale plates 22. The motor 17 is fixedly installed on the front side of the processing box 8, and the output shaft of the motor 17 passes through the front side of the processing box 8 and extends into the interior of the processing box 8. The front end of the dual-axis lead screw 18 is fixedly installed on the output shaft of the motor 17, and the rear end of the dual-axis lead screw 18 is rotatably connected to the rear inner wall of the processing box 8. The top and bottom of the two width plates 19 are slidably connected to the top inner wall and bottom inner wall of the processing box 8, respectively. Both width plates 19 are threaded onto the dual-axis lead screw 18. On the 8, the ends of the two scale plates 22 that are close to each other pass through the front and rear sides of the processing box 8 and are fixedly connected to the left ends of the two width plates 19. The right ends of the two width plates 19 are in sliding contact with the left side of the scraper 13. By starting the motor 17, the dual-axis lead screw 18 can be driven to rotate. At this time, through the threaded connection between the dual-axis lead screw 18 and the two width plates 19, the two width plates 19 can be driven to move closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates 22, the forming width of the cast film can be precisely adjusted.

[0028] In this embodiment, two slide grooves 21 are provided on the top of the processing box 8, and two sliders 20 are fixedly installed on the top of the width plate 19. The sliders 20 are slidably connected in the corresponding slide grooves 21. Through the sliding limit cooperation between the sliders 20 and the slide grooves 21, the width plate 19 can be stably slidably limited and slidably supported.

[0029] In this embodiment, sealing sleeves 23 are fixedly installed on the front and rear sides of the processing box 8. The sealing sleeves 23 are slidably sleeved on the corresponding scale plate 22. By setting the sealing sleeves 23, leakage of the cast film after hot melting can be avoided.

[0030] In this embodiment, the flattening assembly includes a mounting frame 24, two electric push rods 26, two moving blocks 27, a first support roller 28, and a second support roller 29. The mounting frame 24 is fixedly mounted on the top of the processing table 1. The mounting frame 24 has two mounting holes 25. The electric push rods 26 are fixedly mounted on the inner top wall of the corresponding mounting holes 25. The moving blocks 27 are slidably connected in the corresponding mounting holes 25. The output shaft of the electric push rods 26 is fixedly mounted on the top of the corresponding moving blocks 27. The front end and rear end of the first support roller 28 are rotatably connected to the sides of the two moving blocks 27 that are close to each other. The front end and rear end of the second support roller 29 are also connected to the first support roller 28. The first and second support rollers 28 and 29 are respectively rotatably connected to the front and rear inner walls of the mounting frame 24. By passing the formed cast film between the first support roller 28 and the second support roller 29, and then activating the two electric push rods 26, the two moving blocks 27 can be moved down. This causes the first support roller 28 to move down and cooperate with the second support roller 29 to squeeze and limit the cast film. The distance between the first support roller 28 and the second support roller 29 should be appropriate to prevent deformation caused by the squeezing force between the first support roller 28 and the second support roller 29. At the same time, it can flatten the uneven areas on the surface of the formed cast film and ensure the quality of the cast film.

[0031] In this embodiment, a guide roller 30 is rotatably connected to the top of the processing table 1. The guide roller 30 cooperates with the first support roller 28, the second support roller 29 and the winding device 31 respectively. By setting the guide roller 30, the cast film can be stably guided and supported, thereby facilitating the winding device 31 to wind up the cast film.

[0032] This invention also proposes an adaptive thickness adjustment method for a casting film machine, comprising the following steps: S1: First, connect the crushing box 3, melting box 5, blown film assembly 7, motor 17, electric push rod 26 and winding device 31 to the external power supply; S2: The film material is added into the feeding hopper 4, then crushed by the crushing box 3 and then melted in the melting box 5. The melted film material is discharged through the discharge pipe 6, and the melted material is blown into the processing box 8 through the blown film assembly 7 for cooling and forming. S3: Then, by rotating the screw 11 and engaging the threaded connection between the screw 11 and the lifting plate 12, the lifting plate 12 and the scraper 13 can be driven to move up and down. By moving the scraper 13 up or down, the distance between the bottom end of the scraper 13 and the bottom inner wall of the processing box 8 can be adjusted, thereby adjusting the forming thickness of the cast film. By engaging the scale 15 and the ruler 16, the distance between the bottom end of the scraper 13 and the bottom inner wall of the processing box 8 can be accurately reflected, thus facilitating the adjustment of the forming thickness of the cast film by personnel. S4: In addition, the starting motor 17 can drive the dual-axis lead screw 18 to rotate. At this time, through the threaded connection between the dual-axis lead screw 18 and the two width plates 19, the two width plates 19 can be driven to move closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates 22, the forming width of the cast film can be precisely adjusted. S5: By passing the formed cast film between the first support roller 28 and the second support roller 29, and then by activating the two electric push rods 26, the two moving blocks 27 can be moved down, thereby moving the first support roller 28 down and cooperating with the second support roller 29 to squeeze and limit the cast film. Finally, the cast film is guided and supported by the guide roller 30 and then wound up by the winding device 31.

[0033] It should be noted that the specific models of the crushing box 3, melting box 5, blown film assembly 7, motor 17, electric push rod 26, and winding device 31 used can be selected by those skilled in the art. Furthermore, the crushing box 3, melting box 5, blown film assembly 7, motor 17, electric push rod 26, and winding device 31 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0034] Working Principle: In operation, the crushing box 3, melting box 5, blown film assembly 7, motor 17, electric push rod 26, and winding device 31 are first connected to an external power source. Then, film material is added to the feeding hopper 4, crushed in the crushing box 3, and then melted in the melting box 5. The melted film material is discharged through the discharge pipe 6, and then blown into the processing box 8 by the blown film assembly 7 for cooling and forming. During the forming process, the molten material moves outward from the processing box 8. By rotating the screw 11 and connecting it to the lifting plate 12 via a threaded connection, the lifting plate 12 and scraper 13 can move up and down. The upward or downward movement of the scraper 13 adjusts the distance between its bottom and the inner wall of the processing box 8, thus adjusting the thickness of the cast film. The alignment of the scale 15 and the ruler 16 precisely measures the distance between the bottom of the scraper 13 and the inner wall of the processing box 8. This allows for easy adjustment of the casting film's forming thickness. Additionally, starting the motor 17 drives the dual-axis lead screw 18 to rotate. The threaded connection between the lead screw 18 and the two width plates 19 allows the two width plates 19 to move closer or further apart, thus adjusting the casting film's forming width. Two graduated plates 22 allow for precise adjustment of the casting film's forming width. Finally, by passing the formed casting film between the first support roller 28 and the second support roller 29, activating the two electric push rods 26 moves the two moving blocks 27 downwards. This causes the first support roller 28 to move downwards, working in conjunction with the second support roller 29 to compress and limit the casting film. The appropriate spacing between the first and second support rollers 28 and 29 is crucial to prevent deformation caused by the compressive force, while simultaneously flattening any uneven areas on the cast film's surface, ensuring the quality of the casting film.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adaptive thickness-adjustable casting film machine, comprising a processing table (1), a support (2) fixedly mounted on the top of the processing table (1), a crushing box (3) and a melting box (5) fixedly mounted on the support (2), the crushing box (3) and the melting box (5) being connected to each other, and a feeding hopper (4) fixedly connected to the top of the crushing box (3), characterized in that, The casting film machine also includes: The top end of the discharge pipe (6) is fixedly connected to the bottom of the melting box (5), and a blown film assembly (7) is installed on the top of the discharge pipe (6). The processing box (8) has its left end fixedly connected to the bottom end of the discharge pipe (6). Two fixing rods (9) are fixedly installed at the bottom of the processing box (8). The bottom ends of the two fixing rods (9) are fixedly installed on the top of the processing table (1). A support plate (10) is fixedly installed at the right end of the processing box (8). The thickness adjustment assembly includes: a screw (11), a lifting plate (12), a scraper (13), a scale (15), and a ruler (16). The bottom end of the screw (11) is rotatably connected to the top of the processing box (8). The lifting plate (12) is threaded onto the screw (11). The bottom of the scraper (13) is fixedly installed on the bottom of the lifting plate (12). The bottom end of the scraper (13) penetrates the top of the processing box (8) and extends into the interior of the processing box (8). The scale (15) is fixedly installed on the left end of the lifting plate (12). The left end of the scale (15) cooperates with the ruler (16). The bottom end of the ruler (16) is fixedly installed on the top of the processing box (8). Width adjustment component, which is disposed inside the processing box (8) and cooperates with scraper (13); A flattening assembly is disposed on the top of the processing table (1) and is used to flatten the surface of the cast film after it has been formed. A winding device (31) is fixedly installed on the top of the processing table (1).

2. The adaptive thickness adjustment casting film machine according to claim 1, characterized in that, A stabilizing rod (14) is fixedly installed at the bottom of the lifting plate (12). The bottom end of the stabilizing rod (14) passes through the top of the processing box (8) and is fixedly installed on the right side of the scraper (13).

3. The adaptive thickness adjustment casting film machine according to claim 1, characterized in that, The width adjustment assembly includes a motor (17), a dual-axis lead screw (18), two width plates (19), and two scale plates (22). The motor (17) is fixedly installed on the front side of the processing box (8). The output shaft of the motor (17) passes through the front side of the processing box (8) and extends into the interior of the processing box (8). The front end of the dual-axis lead screw (18) is fixedly installed on the output shaft of the motor (17). The rear end of the dual-axis lead screw (18) is rotatably connected to the rear inner wall of the processing box (8). The top and bottom of the two width plates (19) are slidably connected to the top inner wall and bottom inner wall of the processing box (8), respectively. Both width plates (19) are threaded onto the dual-axis lead screw (18). The ends of the two scale plates (22) that are close to each other pass through the front and rear sides of the processing box (8) and are fixedly connected to the left ends of the two width plates (19). The right ends of the two width plates (19) are slidably in contact with the left side of the scraper (13).

4. The adaptive thickness adjustment casting film machine according to claim 3, characterized in that, The top of the processing box (8) has two grooves (21), and the top of the width plate (19) has two sliders (20) fixedly installed. The sliders (20) are slidably connected in the corresponding grooves (21).

5. The adaptive thickness adjustment casting film machine according to claim 3, characterized in that, The front and rear sides of the processing box (8) are fixedly equipped with sealing sleeves (23), and the sealing sleeves (23) are slidably sleeved on the corresponding scale plate (22).

6. The adaptive thickness adjustment casting film machine according to claim 1, characterized in that, The flattening assembly includes a mounting frame (24), two electric push rods (26), two moving blocks (27), a first support roller (28), and a second support roller (29). The mounting frame (24) is fixedly installed on the top of the processing table (1). Two mounting holes (25) are opened on the mounting frame (24). The electric push rods (26) are fixedly installed on the top inner wall of the corresponding mounting holes (25). The moving blocks (27) are slidably connected in the corresponding mounting holes (25). The output shaft of the electric push rods (26) is fixedly installed on the top of the corresponding moving blocks (27). The front end and rear end of the first support roller (28) are rotatably connected to the two moving blocks (27) on the side that are close to each other. The front end and rear end of the second support roller (29) are rotatably connected to the front inner wall and the rear inner wall of the mounting frame (24).

7. The adaptive thickness adjustment casting film machine according to claim 6, characterized in that, The top of the processing table (1) is rotatably connected to a guide roller (30), which is in cooperation with the first support roller (28), the second support roller (29) and the winding device (31).

8. A method for adjusting the thickness of an adaptive casting film machine, characterized in that, Includes the following steps: S1: First, connect the crushing box (3), melting box (5), blown film assembly (7), motor (17), electric push rod (26) and winding device (31) to the external power supply; S2: The film material is added into the hopper (4), then crushed by the crushing box (3) and then melted in the melting box (5). The melted film material is discharged through the discharge pipe (6), and the melted material is blown into the processing box (8) through the blown film assembly (7) for cooling and forming. S3: Then, by rotating the screw (11) and through the threaded connection between the screw (11) and the lifting plate (12), the lifting plate (12) and the scraper (13) can be driven to move up and down. Here, by moving the scraper (13) up or down, the distance between the bottom end of the scraper (13) and the bottom inner wall of the processing box (8) can be adjusted, thereby adjusting the forming thickness of the cast film. Here, through the cooperation between the scale (15) and the ruler (16), the distance between the bottom end of the scraper (13) and the bottom inner wall of the processing box (8) can be accurately reflected, thereby facilitating the adjustment of the forming thickness of the cast film by personnel. S4: In addition, by starting the motor (17), the dual-axis lead screw (18) can be driven to rotate. At this time, through the threaded connection between the dual-axis lead screw (18) and the two width plates (19), the two width plates (19) can be driven to move closer or further apart, thereby adjusting the forming width of the cast film. Here, by setting two scale plates (22), the forming width of the cast film can be precisely adjusted. S5: By passing the cast film through the first support roller (28) and the second support roller (29), and then by activating the two electric push rods (26), the two moving blocks (27) can be moved down, thereby driving the first support roller (28) to move down and cooperate with the second support roller (29) to squeeze and limit the cast film. Finally, the cast film is guided and supported by the guide roller (30) and then wound up by the winding device (31).

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