Film blowing device capable of automatically detecting and adjusting thickness and film blowing method

Abstract

The invention relates to the technical field of film blowing, in particular to a film blowing device capable of automatically detecting and adjusting the thickness and a film blowing method.The film blowing device capable of automatically detecting and adjusting the thickness comprises a base, a supporting frame, a supporting groove, an adjusting roller, a replacing mechanism, a gap adjusting mechanism and a rotating mechanism; the supporting frame is fixedly arranged on the base and located on one side of the film blowing machine, the supporting grooves are formed in the two opposite side walls of the supporting frame, two adjusting rollers are arranged in the supporting frame, and a first supporting block and a second supporting block are arranged at the two ends of each adjusting roller correspondingly. The first supporting block and the second supporting block extend into the supporting groove and are in sliding connection with the side wall of the supporting groove, the replacement mechanism is arranged between the adjusting roller and the first supporting block, and through the technical scheme, the problem that in the related technology, a film and a plate are prone to being damaged due to friction is solved.

Description

Technical Field

[0001] The invention relates to the technical field of film blowing, and in particular to a film blowing device and a film blowing method capable of automatically detecting and adjusting thickness. Background Art

[0002] The film blowing machine heats and melts plastic particles and then blows them into thin films. To meet production needs, the films produced by the film blowing machine need to be adjusted to different thicknesses. The existing adjustment methods are to manually adjust the film thickness by adjusting the die discharge gap, or by increasing or decreasing the extrusion volume of the extruder, or by adjusting the winding speed of the winder. In addition, the film is easily torn during the winding process, resulting in unqualified processed products and a waste of resources.

[0003] After searching, the invention patent with announcement number CN213533792U in the prior art discloses a high-precision automatic adjustment device for the thickness of film blown by a film blowing machine. The article records that "a supporting mechanism is provided on the lower end surface of the base, a winding assembly is provided on the upper end surface of the base, two supporting plates are fixedly connected to the upper end surface of the base, an adjusting roller is provided between the two supporting plates, an adjusting mechanism is provided between the adjusting roller and one of the supporting plates, two mounting blocks are fixedly connected to the outer side wall of the adjusting roller, and a lubrication mechanism is provided between one of the mounting blocks and the upper end surface of the base.".

[0004] The above-mentioned prior art can not only adjust the distance between the adjustment roller and the rectangular plate during use, and then adjust the thickness of the film, which is quick and convenient, but also lubricate the surface of the film, so that the film is not easy to tear when the thickness changes, avoiding product failure.

[0005] However, the adjusting device adjusts the film thickness by adjusting the relative movement between the roller and the rectangular plate. However, the sliding friction between the rectangular plate and the film can easily cause wear of the film. Moreover, after the rectangular plate is used for a long time, edges and corners are likely to appear on the surface of the plate, which is more likely to damage the film, thereby affecting the quality of the film after blowing. Summary of the invention

[0006] The present invention provides a film blowing device and a film blowing method capable of automatically detecting and adjusting thickness, which solves the problem in the related art that film and plate are easily damaged due to friction.

[0007] The technical solution of the present invention is as follows: A film blowing device for automatically detecting and adjusting thickness comprises a base, a support frame, a support groove, an adjusting roller, a replacement mechanism, a gap adjusting mechanism and a rotating mechanism; A film blowing machine is installed on the base, the support frame is fixedly arranged on the base and located on one side of the film blowing machine, the support groove is opened on two opposite side walls of the support frame, two adjusting rollers are arranged in the support frame, a first support block and a second support block are respectively arranged at both ends of the adjusting roller, the first support block and the second support block extend into the support groove and are slidably connected with the side wall of the support groove, the replacement mechanism is arranged between the adjusting roller and the first support block, and is used for replacing the adjusting roller, the gap adjustment mechanism is arranged on the support frame, and is used for adjusting the gap between the two adjusting rollers, and the rotation mechanism is arranged on the support frame, and is used for driving the two adjusting rollers to rotate in opposite directions.

[0008] Preferably, a winding frame is fixedly provided on the base, the winding frame is located on the side of the support frame away from the film blowing machine, a winding roller is rotatably provided on the winding frame, a fourth motor is fixedly provided on the winding frame, and the output end of the fourth motor is fixedly connected to the winding roller.

[0009] Furthermore, the replacement mechanism includes: Positioning grooves, the positioning grooves are arranged at two ends of the adjusting roller; A limiting groove, wherein the limiting groove is provided on the first supporting block, and a limiting block is slidably arranged in the limiting groove; A positioning block, the positioning block is rotatably disposed on the limiting block and the second supporting block, the positioning block extends into the positioning groove and is slidably connected to the side wall of the positioning groove; A replacement component is arranged on the first supporting block and is used for driving the limiting block to move.

[0010] Furthermore, the replacement component includes: A limit opening, wherein the limit opening is provided on the limit block; A cam, the cam is rotatably arranged on the side wall of the limiting groove, the cam is provided with a first positioning opening, and the side wall of the limiting groove is provided with a second positioning opening; a first prism, the first prism being rotatably disposed in the supporting groove, the first prism passing through the first positioning opening and the second positioning opening, and the first prism being slidably connected to a side wall of the first positioning opening; A first motor, wherein the first motor is fixedly disposed on the supporting frame, and an output end of the first motor is fixedly connected to the first prism.

[0011] Furthermore, the regulating mechanism comprises: A bidirectional screw, wherein the bidirectional screw is rotatably disposed in the support groove, and two of the bidirectional screws penetrate through the two first support blocks and the two second support blocks respectively through threaded cooperation; A first cavity, the first cavity is opened on one side of the supporting groove; A synchronous rotation mechanism is arranged on the supporting frame and is used to drive the two bidirectional screws to rotate synchronously.

[0012] On the basis of the above scheme, the synchronous rotation mechanism comprises: A first bevel gear, the first bevel gear is rotatably disposed on the inner top wall of the first cavity, and the first bevel gear is fixedly connected to the bidirectional screw; A second bevel gear, the second bevel gear is rotatably disposed on a side wall of the first cavity, and the second bevel gear is meshed with the first bevel gear; A driving rod, the driving rod is fixedly arranged between the two second bevel gears; A second motor, wherein the second motor is fixedly disposed on the supporting frame, and an output end of the second motor is fixedly connected to the driving rod.

[0013] On the basis of the above scheme, the rotating mechanism comprises: A second cavity, wherein the second supporting block is provided with the second cavity, a third bevel gear is rotatably provided on a side wall of the second cavity close to the adjusting roller, and a connecting rod is fixedly provided between the third bevel gear and the adjacent positioning block; A fourth bevel gear, wherein two fourth bevel gears are provided, and the two fourth bevel gears are rotatably provided on one inner top wall of the second cavity and the other inner bottom wall of the second cavity, respectively, and the fourth bevel gear is meshed with the third bevel gear; A driving mechanism is arranged on the supporting frame and is used for driving the fourth bevel gear to rotate.

[0014] On the basis of the above scheme, the driving mechanism comprises: A first driving port, wherein the first driving port is provided on the fourth bevel gear, and a second driving port is provided on the second supporting block; a second prism, the second prism being rotatably disposed in the support groove, the second prism passing through the first drive opening and the second drive opening, and the second prism being slidably connected to a side wall of the first drive opening; A third motor is fixedly disposed on the supporting frame, and an output end of the third motor is fixedly connected to the second prism.

[0015] Based on the above solution, an infrared thickness gauge is fixedly arranged on the side wall of the support frame.

[0016] A film blowing method for automatically detecting and adjusting thickness, using a film blowing device for automatically detecting and adjusting thickness of the above solution, comprising the following steps: Step 1, install the adjusting roller, move the adjusting roller between the two positioning blocks, and then the operator controls the first motor to work. The operation of the first motor can drive the first prism to rotate, and then drive the cam to rotate through the sliding cooperation relationship between the first prism and the first positioning port. In this process, the cam can squeeze the limiting port to drive the limit block to move, so that the positioning block on the limit block extends into the positioning groove and squeezes the adjusting roller, so that the two positioning blocks are completely extended into the positioning groove. At this time, the installation of the adjusting roller can be achieved through the cooperation of the positioning block and the positioning groove; Step 2, adding materials; adding the processing raw materials of the film to the film blowing machine, so that the film can be output by the film blowing machine, and then the output film is wound on the winding roller through the gap between the adjusting rollers, and then the winding roller can be mobilized to rotate through the operation of the fourth motor, thereby realizing the traction and winding of the film; Step three, thickness adjustment, adjusting the gap between the adjusting rollers according to the required thickness of the film. During the adjustment process, the second motor can be used to drive the driving rod and the second bevel gear to rotate, and then the meshing of the second bevel gear and the first bevel gear can drive the bidirectional screw to rotate, so that the first support blocks and the second support blocks are driven to move relative to each other through the thread matching relationship between the bidirectional screw and the first support block and the second support block, so that the adjusting rollers are driven to move through the movement of the first support block and the second support block, so as to achieve the adjustment of the spacing between the adjusting rollers; Step 4, drive the adjusting roller to rotate; the operation of the third motor can drive the second prism to rotate, so that the fourth bevel gear can be driven to rotate through the sliding fit relationship between the second prism and the first drive port, and then the third bevel gear, the connecting rod and the positioning block can be driven to rotate through the meshing relationship between the fourth bevel gear and the third bevel gear, so that the adjusting roller can be driven to rotate through the sliding fit relationship between the positioning block and the positioning groove.

[0017] Step 5: Thickness detection: The thickness of the film is detected by an infrared thickness gauge, and the gap between the adjusting rollers is relatively adjusted according to the thickness change of the film.

[0018] The working principle and beneficial effects of the present invention are: 1. In the present invention, by setting the adjusting roller and the rotating mechanism, the adjusting roller can be used to extrude the film in the process of the film passing through the gap between the adjusting rollers, so that the film is extruded into a suitable thickness. In the process of the film passing through the gap between the adjusting rollers, the rotating speed of the adjusting roller can be driven to be consistent with the moving speed of the film, so as to avoid relative movement between the film and the adjusting roller, thereby reducing the friction between the film and the adjusting roller, and further avoiding the film from being damaged by the friction; 2. In the present invention, by setting the gap adjustment mechanism, it is convenient to drive the bidirectional screw to rotate synchronously through the operation of the second motor, so that the adjusting rollers are driven to move relatively through the thread matching relationship between the bidirectional screw and the first support block and the second support block, so as to facilitate the adjustment of the gap between the adjusting rollers, so that the extrusion thickness can be adjusted in real time during the film extrusion process, avoiding the inconvenience caused by adjusting the gap between the adjusting rollers after stopping; 3. In the present invention, by setting the replacement mechanism, it is convenient to drive the limit block to move through the operation of the first motor, and then it is convenient to replace the adjustment roller through the cooperation of the positioning block and the positioning groove; 4. In the present invention, by setting up the base, the supporting frame, the supporting groove, the adjusting roller, the replacement mechanism, the gap adjusting mechanism and the rotating mechanism, it is convenient to extrude the film to a certain thickness by adjusting the spacing of the adjusting rollers and rotating the adjusting rollers. At the same time, during the extrusion process, a rolling contact is formed between the adjusting rollers and the film, thereby reducing the risk of film damage, thereby solving the problem of easy damage between the film and the plate due to friction in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of the support frame of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the support frame of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the first supporting block and the second supporting block of the present invention; Figure 5 This is a schematic cross-sectional structural diagram of the first support block of the present invention; Figure 6 This is a schematic diagram of the structure of the adjusting roller of the present invention; Figure 7 It is a schematic cross-sectional structure diagram of the second support block of the present invention.

[0021] In the figure: 1. base; 2. film blowing machine; 3. support frame; 4. support groove; 5. adjusting roller; 6. first support block; 7. second support block; 8. winding frame; 9. winding roller; 10. positioning groove; 11. limit block; 12. positioning block; 13. limit opening; 14. cam; 15. first prism; 16. first motor; 17. bidirectional screw; 18. first bevel gear; 19. second bevel gear; 20. second motor; 21. third bevel gear; 22. fourth bevel gear; 23. second prism; 24. third motor; 25. infrared thickness gauge. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1, as Figure 1-Figure 7 As shown, this embodiment proposes a film blowing device for automatically detecting and adjusting thickness, including a base 1, a support frame 3, a support groove 4, an adjusting roller 5, a replacement mechanism, a gap adjustment mechanism and a rotating mechanism. A film blowing machine 2 is installed on the base 1, the support frame 3 is fixedly arranged on the base 1 and is located on one side of the film blowing machine 2, the support groove 4 is arranged on two opposite side walls of the support frame 3, two adjusting rollers 5 are arranged in the support frame 3, and a first supporting block 6 and a second supporting block 7 are respectively arranged at both ends of the adjusting roller 5, the first supporting block 6 and the second supporting block 7 extend into the supporting groove 4 and are slidably connected to the side walls of the supporting groove 4, the replacement mechanism is arranged between the adjusting roller 5 and the first supporting block 6, and is used to replace the adjusting roller 5, and the gap adjustment mechanism is It is arranged on the supporting frame 3 and is used to adjust the gap between the two adjusting rollers 5. The rotating mechanism is arranged on the supporting frame 3 and is used to drive the two adjusting rollers 5 to rotate in opposite directions. A winding frame 8 is fixedly arranged on the base 1. The winding frame 8 is located on the side of the supporting frame 3 away from the film blowing machine 2. A winding roller 9 is rotatably arranged on the winding frame 8. A fourth motor is fixedly arranged on the winding frame 8. The output end of the fourth motor is fixedly connected to the winding roller 9. The processing raw materials of the film are added to the film blowing machine 2, so that the film can be output through the film blowing machine 2, and then the output film is passed through the gap between the adjusting rollers 5 and wound around the winding roller 9. Then, the winding roller 9 can be mobilized to rotate through the operation of the fourth motor, thereby realizing the traction and winding of the film.

[0024] Reference Figure 3-Figure 7The replacement mechanism includes a positioning groove 10, a limiting groove, a positioning block 12 and a replacement component. The positioning groove 10 is opened at both ends of the adjusting roller 5. The limiting groove is opened on the first support block 6. The limiting block 11 is slidably arranged in the limiting groove. The positioning block 12 is rotatably arranged on the limiting block 11 and the second support block 7. The positioning block 12 extends into the positioning groove 10 and is slidably connected to the side wall of the positioning groove 10. The replacement component is arranged on the first support block 6 for driving the limiting block 11 to move. The replacement component includes a limiting opening 13, a cam 14, a first prism 15 and a first motor 16. The limiting opening 13 is opened on the limiting block 11. The cam 14 is rotatably arranged on the side wall of the limiting groove. The cam 14 is provided with a first positioning opening, and the side wall of the limiting groove is provided with a second positioning opening. The first prism 15 is rotatably arranged in the support groove 4, and the first prism 15 passes through the first positioning opening and the second positioning opening. The first prism 15 is slidably connected to the side wall of the first positioning opening, the first motor 16 is fixedly arranged on the supporting frame 3, and the output end of the first motor 16 is fixedly connected to the first prism 15. After the adjusting roller 5 is moved between the two positioning blocks 12, the operator controls the first motor 16 to work. The work of the first motor 16 can drive the first prism 15 to rotate, and then drive the cam 14 to rotate through the sliding cooperation relationship between the first prism 15 and the first positioning opening. In this process, the cam 14 can squeeze the limit opening 13 to drive the limit block 11 to move, so that the positioning block 12 on the limit block 11 extends into the positioning groove 10 and squeezes the adjusting roller 5, so that the two positioning blocks 12 are completely extended into the positioning groove 10. At this time, the installation and replacement of the adjusting roller 5 can be achieved through the cooperation between the positioning block 12 and the positioning groove 10.

[0025] Reference Figure 3 and Figure 4 The adjusting mechanism includes a bidirectional screw 17, a first cavity and a synchronous rotation mechanism. The bidirectional screw 17 is rotatably arranged in the support groove 4. The two bidirectional screws 17 penetrate the two first support blocks 6 and the two second support blocks 7 respectively through threaded cooperation. The first cavity is opened on one side of the support groove 4. The synchronous rotation mechanism is arranged on the support frame 3 to drive the two bidirectional screws 17 to rotate synchronously. The synchronous rotation mechanism includes a first bevel gear 18, a second bevel gear 19, a driving rod and a second motor 20. The first bevel gear 18 is rotatably arranged on the inner top wall of the first cavity. A bevel gear 18 is fixedly connected to the bidirectional screw 17, a second bevel gear 19 is rotatably arranged on the side wall of the first cavity, the second bevel gear 19 is meshed with the first bevel gear 18, a driving rod is fixedly arranged between the two second bevel gears 19, a second motor 20 is fixedly arranged on the support frame 3, an output end of the second motor 20 is fixedly connected to the driving rod, and the operation of the second motor 20 can drive the two bidirectional screws 17 to rotate, thereby adjusting the spacing between the adjusting rollers 5 through the threaded cooperation of the bidirectional screw 17 with the first support block 6 and the second support block 7 respectively.

[0026] Reference Figure 3-Figure 5 , the rotating mechanism includes a second cavity, a fourth bevel gear 22 and a driving mechanism. A second cavity is opened in the second support block 7, and a third bevel gear 21 is rotatably arranged on the side wall of the second cavity close to the adjusting roller 5. A connecting rod is fixedly arranged between the third bevel gear 21 and the adjacent positioning block 12. Two fourth bevel gears 22 are provided. The two fourth bevel gears 22 are rotatably arranged on the inner top wall of one of the second cavities and the inner bottom wall of the other second cavity. The fourth bevel gear 22 is meshed with the third bevel gear 21. The driving mechanism is arranged on the supporting frame 3, and is used to drive the fourth bevel gear 22 to rotate. The driving mechanism includes a first driving port, a second prism 23 and a third motor 24. The first driving port is opened on the fourth bevel gear 22, and a second driving port is opened on the second support block 7. The second The prism 23 is rotatably arranged in the support groove 4, the second prism 23 passes through the first drive port and the second drive port, the second prism 23 is slidably connected to the side wall of the first drive port, the third motor 24 is fixedly arranged on the support frame 3, and the output end of the third motor 24 is fixedly connected to the second prism 23. An infrared thickness gauge 25 is fixedly arranged on the side wall of the support frame 3. The operation of the third motor 24 can drive the second prism 23 to rotate, thereby driving the fourth bevel gear 22 to rotate through the sliding cooperation relationship between the second prism 23 and the first drive port, and then driving the third bevel gear 21, the connecting rod and the positioning block 12 to rotate through the meshing of the fourth bevel gear 22 and the third bevel gear 21, thereby driving the adjusting roller 5 to rotate through the sliding cooperation relationship between the positioning block 12 and the positioning groove 10.

[0027] Embodiment 2: Embodiment 2 of the present application is supplemented on the basis of Embodiment 1, and is a method for automatically detecting and adjusting the thickness of a film, comprising the following steps: Step 1, install the adjusting roller 5, move the adjusting roller 5 between the two positioning blocks 12, and then the operator controls the first motor 16 to work. The operation of the first motor 16 can drive the first prism 15 to rotate, and then drive the cam 14 to rotate through the sliding cooperation relationship between the first prism 15 and the first positioning port. In this process, the cam 14 can squeeze the limiting port 13 to drive the limiting block 11 to move, so that the positioning block 12 on the limiting block 11 extends into the positioning groove 10 and squeezes the adjusting roller 5, so that the two positioning blocks 12 are completely extended into the positioning groove 10. At this time, the adjusting roller 5 can be installed by the cooperation of the positioning block 12 and the positioning groove 10; Step 2, adding materials; adding the processing raw materials of the film to the film blowing machine 2, so that the film can be output through the film blowing machine 2, and then the output film is wound around the winding roller 9 through the gap between the adjusting rollers 5, and then the winding roller 9 can be mobilized to rotate through the operation of the fourth motor, thereby realizing the traction and winding of the film; Step three, thickness adjustment, the gap between the adjusting rollers 5 is adjusted according to the required thickness of the film. During the adjustment process, the second motor 20 can be used to drive the driving rod and the second bevel gear 19 to rotate, and then the meshing of the second bevel gear 19 and the first bevel gear 18 can drive the bidirectional screw 17 to rotate, so that the first support block 6 and the second support block 7 are driven to move relative to each other through the threaded matching relationship between the bidirectional screw 17 and the first support block 6 and the second support block 7, so that the adjusting roller 5 is driven to move through the movement of the first support block 6 and the second support block 7, so as to achieve the adjustment of the spacing between the adjusting rollers 5; Step 4, drive the adjusting roller 5 to rotate; the operation of the third motor 24 can drive the second prism 23 to rotate, so that the fourth bevel gear 22 can be driven to rotate through the sliding fit relationship between the second prism 23 and the first driving port, and then the third bevel gear 21, the connecting rod and the positioning block 12 can be driven to rotate through the engagement of the fourth bevel gear 22 with the third bevel gear 21, so that the adjusting roller 5 can be driven to rotate through the sliding fit relationship between the positioning block 12 and the positioning groove 10.

[0028] Step 5: Thickness detection: the thickness of the film is detected by an infrared thickness gauge 25, and the gap between the adjusting rollers 5 is relatively adjusted according to the thickness change of the film.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A film blowing device with automatic detection and adjustment of thickness, characterized in that: include: A base (1), wherein a film blowing machine (2) is mounted on the base (1); A support frame (3), the support frame (3) being fixedly arranged on the base (1) and located on one side of the film blowing machine (2); A support groove (4), the support groove (4) being provided on two opposite side walls of the support frame (3); An adjusting roller (5), wherein two adjusting rollers (5) are arranged in the supporting frame (3), and a first supporting block (6) and a second supporting block (7) are respectively arranged at two ends of the adjusting roller (5), and the first supporting block (6) and the second supporting block (7) extend into the supporting groove (4) and are slidably connected to the side wall of the supporting groove (4); a replacement mechanism, the replacement mechanism being arranged between the adjustment roller (5) and the first support block (6) and being used for replacing the adjustment roller (5); a gap adjustment mechanism, the gap adjustment mechanism being arranged on the support frame (3) and being used for adjusting the gap between the two adjustment rollers (5); A rotating mechanism, the rotating mechanism is arranged on the supporting frame (3) and is used to drive the two adjusting rollers (5) to rotate in opposite directions.

2. The film blowing device for automatically detecting and adjusting thickness according to claim 1 is characterized in that: A winding frame (8) is fixedly arranged on the base (1), and the winding frame (8) is located on a side of the support frame (3) away from the film blowing machine (2). A winding roller (9) is rotatably arranged on the winding frame (8), and a fourth motor is fixedly arranged on the winding frame (8), and an output end of the fourth motor is fixedly connected to the winding roller (9).

3. The film blowing device for automatically detecting and adjusting thickness according to claim 2 is characterized in that: The replacement mechanism comprises: Positioning grooves (10), the positioning grooves (10) being provided at both ends of the adjusting roller (5); A limiting groove, the limiting groove being formed on the first supporting block (6), and a limiting block (11) being slidably arranged in the limiting groove; a positioning block (12), the positioning block (12) being rotatably disposed on the limiting block (11) and the second supporting block (7), the positioning block (12) extending into the positioning groove (10) and being slidably connected to a side wall of the positioning groove (10); A replacement component, the replacement component is arranged on the first support block (6) and is used to drive the limit block (11) to move.

4. The film blowing device for automatically detecting and adjusting thickness according to claim 3 is characterized in that: The replacement assembly includes: A limiting opening (13), wherein the limiting opening (13) is formed on the limiting block (11); A cam (14), the cam (14) being rotatably disposed on a side wall of the limiting groove, the cam (14) being provided with a first positioning opening, and the side wall of the limiting groove being provided with a second positioning opening; a first prism (15), the first prism (15) being rotatably disposed in the support groove (4), the first prism (15) penetrating the first positioning opening and the second positioning opening, the first prism (15) being slidably connected to a side wall of the first positioning opening; A first motor (16), wherein the first motor (16) is fixedly arranged on the support frame (3), and an output end of the first motor (16) is fixedly connected to the first prism (15).

5. The film blowing device for automatically detecting and adjusting thickness according to claim 4 is characterized in that: The regulating mechanism comprises: A bidirectional screw rod (17), the bidirectional screw rod (17) being rotatably disposed in the support groove (4), and the two bidirectional screw rods (17) respectively penetrate the two first support blocks (6) and the two second support blocks (7) through threaded engagement; A first cavity, the first cavity being opened on one side of the supporting groove (4); A synchronous rotation mechanism, the synchronous rotation mechanism is arranged on the support frame (3) and is used to drive the two bidirectional screws (17) to rotate synchronously.

6. The film blowing device with automatic detection and adjustment of thickness according to claim 5, characterized in that: The synchronous rotation mechanism comprises: a first bevel gear (18), the first bevel gear (18) being rotatably disposed on an inner top wall of the first cavity, the first bevel gear (18) being fixedly connected to the bidirectional screw (17); a second bevel gear (19), the second bevel gear (19) being rotatably disposed on a side wall of the first cavity, the second bevel gear (19) being meshed with the first bevel gear (18); A driving rod, the driving rod being fixedly arranged between the two second bevel gears (19); A second motor (20), wherein the second motor (20) is fixedly arranged on the support frame (3), and an output end of the second motor (20) is fixedly connected to the driving rod.

7. The film blowing device for automatically detecting and adjusting thickness according to claim 6, characterized in that: The rotating mechanism comprises: a second cavity, wherein the second cavity is provided in the second support block (7), a third bevel gear (21) is rotatably provided on a side wall of the second cavity close to the adjusting roller (5), and a connecting rod is fixedly provided between the third bevel gear (21) and the adjacent positioning block (12); a fourth bevel gear (22), wherein two fourth bevel gears (22) are provided, and the two fourth bevel gears (22) are rotatably provided on an inner top wall of one of the second cavities and an inner bottom wall of another of the second cavities, respectively, and the fourth bevel gear (22) is meshed with the third bevel gear (21); A driving mechanism, the driving mechanism being arranged on the supporting frame (3) and being used for driving the fourth bevel gear (22) to rotate.

8. The film blowing device for automatically detecting and adjusting thickness according to claim 7, characterized in that: The driving mechanism comprises: a first drive port, the first drive port being provided on the fourth bevel gear (22), and a second drive port being provided on the second support block (7); a second prism (23), the second prism (23) being rotatably disposed in the support groove (4), the second prism (23) penetrating the first drive opening and the second drive opening, the second prism (23) being slidably connected to a side wall of the first drive opening; A third motor (24), the third motor (24) being fixedly arranged on the support frame (3), and an output end of the third motor (24) being fixedly connected to the second prism (23).

9. The film blowing device for automatically detecting and adjusting thickness according to claim 8, characterized in that: An infrared thickness gauge (25) is fixedly arranged on the side wall of the support frame (3).

10. A film blowing method with automatic detection and thickness adjustment, using the film blowing device with automatic detection and thickness adjustment according to claim 9, characterized in that: The following steps are involved: S1, installing the adjusting roller (5), moving the adjusting roller (5) to between the two positioning blocks (12), and then the operator controls the first motor (16) to work. The operation of the first motor (16) can drive the first prism (15) to rotate, and then drive the cam (14) to rotate through the sliding cooperation relationship between the first prism (15) and the first positioning opening. In this process, the cam (14) can squeeze the limiting opening (13) to drive the limiting block (11) to move, so that the positioning block (12) on the limiting block (11) extends into the positioning groove (10) and squeezes the adjusting roller (5), so that the two positioning blocks (12) completely extend into the positioning groove (10). At this time, the adjusting roller (5) can be installed through the cooperation between the positioning block (12) and the positioning groove (10); S2, adding materials; adding the processing raw materials of the film to the film blowing machine (2), so that the film can be output by the film blowing machine (2), and then the output film is passed through the gap between the adjusting rollers (5) and wound on the winding roller (9), and then the winding roller (9) can be mobilized to rotate by the operation of the fourth motor, so as to achieve the traction and winding of the film; S3, thickness adjustment, adjusting the gap between the adjusting rollers (5) according to the required thickness of the film. During the adjustment process, the second motor (20) can be used to drive the driving rod and the second bevel gear (19) to rotate, and the meshing of the second bevel gear (19) and the first bevel gear (18) can drive the bidirectional screw (17) to rotate, thereby driving the first support block (6) and the second support block (7) to move relative to each other through the thread matching relationship between the bidirectional screw (17) and the first support block (6) and the second support block (7), thereby driving the adjusting rollers (5) to move through the movement of the first support block (6) and the second support block (7), thereby achieving the adjustment of the gap between the adjusting rollers (5); S4, driving the adjusting roller (5) to rotate; the operation of the third motor (24) can drive the second prism (23) to rotate, thereby driving the fourth bevel gear (22) to rotate through the sliding fit relationship between the second prism (23) and the first drive opening, and then driving the third bevel gear (21), the connecting rod and the positioning block (12) to rotate through the meshing of the fourth bevel gear (22) and the third bevel gear (21), thereby driving the adjusting roller (5) to rotate through the sliding fit relationship between the positioning block (12) and the positioning groove (10); S5, thickness detection, the thickness of the film is detected by an infrared thickness gauge (25), and the gap between the adjustment rollers (5) is relatively adjusted according to the thickness change of the film.

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