High performance membrane material on-line thickness gauge

Abstract

The application discloses a kind of high-performance film material on-line thickness gauge, it is related to thickness measurement technical field, including pedestal, the top surface of the pedestal is provided with laser thickness measuring component, laser thickness measuring component is by emitting laser beam to membrane upper and lower surface, utilize the time difference of reflected light to measure membrane thickness, the two sides of laser thickness measuring component are provided with guide component, one side wall of the pedestal is provided with rewinding component, the other side wall of the pedestal is provided with reinspection component, membrane is guided via reinspection component and two guide components, and finally rewinds in rewinding component.In the application, by rewinding component and reinspection component cooperate reinspection, utilize the linear velocity correlation of real-time radius variation of rewinding roller and fixed radius of reinspection roller, combine the number of turns recorded by main control encoder, the theoretical value of membrane thickness can be calculated, compared with the measurement data of laser thickness measuring component, effectively eliminate dynamic measurement error, significantly improve thickness precision.

Description

Technical Field

[0001] This invention relates to the field of thickness measurement technology, specifically to a high-performance online thickness gauge for film materials. Background Technology

[0002] An online thickness gauge is an automated measurement device that can continuously and in real time detect the thickness of materials during production and provide timely data feedback to adjust production. Thickness measurement of high-performance film materials is crucial for ensuring their performance and application effectiveness. Because these materials are typically thin and susceptible to external forces, extremely high requirements are placed on measurement accuracy, stability, and non-contact operation. In practical measurements, specialized equipment such as online thickness gauges are often used.

[0003] For example, patent CN120293045A discloses an online thickness gauge long-drift calibration method and device. It measures the signal of a pure X-ray source without a film to obtain the signal value of the pure X-ray intensity; it measures the signal of a standard to obtain the signal value of the weakened X-ray after the standard is placed, and compares the material and thickness of the standard sample; it uses the calibration algorithm to calculate the pure X-ray source signal value at a certain time, and uses the slow change characteristic of the pure X-ray source signal value to calibrate the pure X-ray signal value near the time. Then, it inputs the X-ray absorption formula to calculate the thickness of the film being measured.

[0004] However, in existing technologies, due to the extremely thin thickness of the membrane, even minor interference factors can lead to relatively large measurement errors during the measurement process. Relying solely on a single measurement method is limited by its principle, accuracy, and applicability, making it difficult to comprehensively and accurately capture the true thickness of the membrane. For example, in common contact measurements, probe pressure can cause deformation of the flexible membrane, resulting in measurement deviations; while some optical measurement methods are easily affected by the surface roughness and transmittance of the membrane. These limitations of single measurement methods can easily lead to inaccurate measurement results, thus seriously affecting the actual effectiveness of membrane thickness measurement. Summary of the Invention

[0005] The purpose of this invention is to provide a high-performance online thickness gauge for membrane materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-performance online thickness gauge for membrane materials, comprising a platform, wherein a laser thickness measuring component is disposed on the top surface of the platform, the laser thickness measuring component measures the thickness of the membrane by emitting a laser beam to the upper and lower surfaces of the membrane and utilizing the time difference of the reflected light, guide components are disposed on both sides of the laser thickness measuring component, a rewinding component is disposed on one side wall of the platform, and a re-inspection component is disposed on the other side wall of the platform, the membrane is guided by the re-inspection component and the two guide components, and finally rewound in the rewinding component, wherein the two guide components are used to guide the membrane to be parallel to the upper surface of the platform;

[0007] The rewinding assembly includes a rewinding roller, with positioning frames rotatably connected to both ends of the rewinding roller. The positioning frames are fixedly connected to the outer wall of the platform. A servo motor is installed at one end of the rewinding roller, and a main control encoder is installed at the other end. The servo motor drives the rewinding roller to rotate at a fixed angular velocity, and the main control encoder records the number of revolutions the rewinding roller has made. The inspection assembly includes an inspection roller, with positioning frames rotatably connected to both ends of the inspection roller. The positioning frames are fixedly connected to the outer wall of the platform. A speed sensor is installed at one end of the inspection roller, and the speed sensor is used to test the rotational angular velocity of the inspection roller.

[0008] Preferably, the thickness formula for the film body re-inspected via the rewinding assembly and the re-inspection assembly is: ;

[0009] In the formula, For the membrane thickness to be re-inspected, The angular velocity of the rewinding roller driven by the servo motor. and These are the number of rewinding roll rotations recorded by the main encoder at the two detection points, respectively. and The linear speed of the re-inspection roller at two detection points is measured by a speed sensor. The thickness of the film measured by the re-inspection is compared and calibrated with the thickness measured by the laser thickness measuring component to improve the accuracy of film thickness testing.

[0010] Preferably, the guiding assembly includes a guide roller, both ends of which are rotatably connected to a positioning frame two, and the bottom end of the positioning frame two is movably connected to the top surface of the pedestal.

[0011] Preferably, a constant pressure testing component is provided on both sides of the laser thickness measuring component. The constant pressure testing component has a crossbeam inside, and telescopic sleeves are provided on both sides of the crossbeam. An electric cylinder is provided inside the telescopic sleeve, and a sliding support platform is slidably connected to the outer wall of the telescopic sleeve.

[0012] Preferably, the sliding platform is slidably connected to the surface of the telescopic sleeve via an electric cylinder, an electric control base is provided on one side of the constant pressure test assembly, a sliding sleeve is provided at the end of the telescopic sleeve, and the sliding sleeve is slidably connected to the crossbeam of the platform.

[0013] Preferably, the bottom of the laser thickness measuring component is provided with a test platform, the top of the laser thickness measuring component is provided with a laser detection head, the laser detection head is used to receive the laser downwards, and the top of the laser thickness measuring component is provided with a Bluetooth module, the Bluetooth module is used to transmit test data online.

[0014] Preferably, the front of the platform is provided with a display screen and a touch screen. The display screen is used to display data on the rotational angular velocity and number of rotations of the rewinding roller and the rotational angular velocity of the inspection roller. The touch screen is used to adjust the rotational angular velocity of the rewinding roller and the periodic measurement frequency of the constant pressure test component.

[0015] Preferably, the surface of the base is provided with a power button and an adjustment key, and support feet are fixedly connected to the four corners of the bottom of the base.

[0016] Preferably, the second positioning frame has threaded holes on its surface, and the second positioning frame is mounted on the base by screws, with nuts movably connected to the surface of the screws, so that the height of the guide roller supported by the second positioning frame can be adjusted by the nuts.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the rewinding assembly and the re-inspection assembly work together to re-inspect the film. By using the correlation between the real-time radius change of the rewinding roller and the linear velocity of the fixed radius of the re-inspection roller, combined with the number of revolutions recorded by the main control encoder, the theoretical value of the film thickness can be calculated. This value is then compared and calibrated with the measurement data of the laser thickness measuring assembly, effectively eliminating dynamic measurement errors and significantly improving the thickness measurement accuracy.

[0019] 2. In this invention, in addition to direct laser thickness measurement and rewinding-re-inspection collaborative verification, the constant pressure testing components on both sides of the laser thickness measurement component press the film body by driving the slide table through the electric cylinder when the servo motor stops. The thickness is verified again by using strain sensors and propulsion stroke data. The triple mechanism cross-verification greatly reduces the deviation risk of a single measurement method.

[0020] 3. In this invention, the guide roller of the guide assembly is height-adjustable through the positioning frame 2. Combined with the turning design of the membrane body between the inspection roller and the guide roller, it can always keep the membrane body parallel to the upper surface of the platform, avoid the measurement distortion of the laser thickness measuring component caused by the tilt of the membrane body, ensure the stability of the membrane body posture during dynamic movement, and provide the basic conditions for accurate thickness measurement.

[0021] 4. In this invention, the equipment is equipped with a display screen to display parameters such as the angular velocity of the rewinding roller, the number of turns, and the angular velocity of the inspection roller in real time. The servo motor angular velocity and constant pressure test frequency can be directly adjusted via the touch screen or adjustment keys. The power button supports emergency stop control. The height of the guide roller can be flexibly adjusted by the nut of the positioning frame two. The operation is intuitive and highly adaptable.

[0022] 5. In this invention, the equipment uses the rewinding roller of the rewinding assembly as the power core to drive the film body to continuously pass through the inspection roller and guide roller. The laser thickness measurement assembly can measure the thickness in real time during the dynamic movement of the film body. At the same time, the Bluetooth module realizes online data transmission. The constant pressure test assembly supports periodic stop detection. The entire process can complete multiple measurements without interrupting the rewinding, taking into account both detection efficiency and continuity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a high-performance online thickness gauge for membrane materials according to the present invention;

[0024] Figure 2 This is a front plan view of a high-performance online thickness gauge for membrane materials according to the present invention;

[0025] Figure 3 This is a schematic diagram of the constant pressure testing component in a high-performance online thickness gauge for membrane materials according to the present invention.

[0026] Figure 4 This is a schematic diagram of the structure of the platform in the online thickness gauge for high-performance membrane materials according to the present invention;

[0027] Figure 5 This is a schematic diagram of the laser thickness measurement component in a high-performance online thickness gauge for membrane materials according to the present invention.

[0028] Figure 6 This is a schematic diagram of the rewinding assembly and re-inspection assembly in a high-performance online thickness gauge for membrane materials according to the present invention;

[0029] Figure 7 This is a simplified diagram illustrating the operating principle of the membrane in a high-performance online thickness gauge for membrane materials according to the present invention.

[0030] Figure 8 This is a simplified diagram illustrating the rotation radius variation of the rewinding roller in a high-performance online thickness gauge for membrane materials according to the present invention.

[0031] Figure 9 This is a simplified diagram illustrating the change in the rotational linear velocity of the rewinding roller in a high-performance online thickness gauge for membrane materials according to the present invention.

[0032] In the diagram: 1. Base; 11. Display screen; 12. Touch screen; 13. Power button; 14. Adjustment key; 15. Support leg; 2. Laser thickness measuring assembly; 21. Laser detection head; 22. Test platform; 23. Bluetooth module; 3. Constant pressure test assembly; 31. Telescopic sleeve; 32. Support slide; 33. Electrical control base; 34. Sliding sleeve; 4. Rewinding assembly; 41. Servo motor; 42. Main control encoder; 43. Positioning frame one; 44. Rewinding roller; 5. Guide assembly; 51. Guide roller; 52. Positioning frame two; 6. Re-inspection assembly; 61. Positioning frame three; 62. Speed ​​sensor; 63. Re-inspection roller. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Refer to Figures 1-9 As shown: A high-performance online thickness gauge for membrane materials includes a base 1. A laser thickness measuring component 2 is provided on the top surface of the base 1. The laser thickness measuring component 2 emits a laser beam to the upper and lower surfaces of the membrane and measures the thickness of the membrane by utilizing the time difference of the reflected light. Guide components 5 are provided on both sides of the laser thickness measuring component 2. A rewinding component 4 is provided on one side wall of the base 1, and a re-inspection component 6 is provided on the other side wall of the base 1. The membrane is guided by the re-inspection component 6 and the two guide components 5 and finally rewound in the rewinding component 4. The two guide components 5 are used to guide the membrane to be parallel to the upper surface of the base 1.

[0035] The rewinding assembly 4 includes a rewinding roller 44, with positioning frames 43 rotatably connected to both ends of the rewinding roller 44. The positioning frames 43 are fixedly connected to the outer side wall of the platform 1. A servo motor 41 is provided at one end of the rewinding roller 44, and a main control encoder 42 is provided at the other end of the rewinding roller 44. The servo motor 41 is used to drive the rewinding roller 44 to rotate at a fixed angular velocity, and the main control encoder 42 is used to record the number of rotations of the rewinding roller 44. The inspection assembly 6 includes an inspection roller 63, with positioning frames 61 rotatably connected to both ends of the inspection roller 63. The positioning frames 61 are fixedly connected to the outer side wall of the platform 1. A speed sensor 62 is provided at one end of the inspection roller 63, and the speed sensor 62 is used to test the rotational angular velocity of the inspection roller 63.

[0036] In this embodiment, the online thickness gauge uses the laser thickness measurement principle for testing. To ensure the accuracy of the test, the film needs to be as parallel as possible when passing under the laser thickness measurement component 2, and the film is in a dynamic moving state during the test. That is, the film is continuously rewound by the rewinding roller 44. The film moves toward the rewinding roller 44 by passing through the inspection roller 63 and two guide rollers 51 in sequence. The film data measured directly by the laser thickness measurement component 2 may have errors and accuracy issues. The film thickness is re-inspected by the rewinding components 4 and inspection components 6 on both sides. The principle is that the film is attached to the outer quarter of the inspection roller 63, turns 90 degrees and passes through the two guide rollers 51 in sequence. After turning downwards 90 degrees by the second guide roller 51, it is finally wound onto the outer surface of the rewinding roller 44. The film is wound onto the rewinding roller 44 in a spiral shape.

[0037] As the number of winding turns increases, the outer radius of the film increases. Since the inspection roller 63 does not pass through the winding of the film, its rotation radius is always the same as the radius of the inspection roller 63 itself. When the servo motor 41 drives the rewinding roller 44 to rotate at a fixed angular velocity, the linear velocity of the film winding outside the rewinding roller 44 increases. The real-time rotation radius is the sum of the radius of the rewinding roller 44 itself and the thickness of the multi-layer film stack. Therefore, the linear velocity is the product of the real-time rotation radius and the angular velocity. Since the film is a unified whole, the speed of the film moving at the same speed at a certain instant is the same. Therefore, during the winding process, the real-time linear velocity of the film winding with the rewinding roller 44 is equal to the real-time linear velocity of the film passing through the guide roller 51 or the inspection roller 63. At this time, the real-time linear velocity of the inspection roller 63 can be calculated by the speed sensor 62.

[0038] Since the speed sensor 62 can measure the angular velocity of the re-inspection roller 63, and the rotation radius of the re-inspection roller 63 remains constant, the linear velocity of the film at the re-inspection roller 63 can be calculated once the radius of the re-inspection roller 63 is known. Similarly, the linear velocity on the rewinding roller 44 can be obtained, and the rotation radius of the rewinding roller 44 can be calculated in reverse. The increase in speed is the increase in the rotation radius of the rewinding roller 44, which is the thickness of the film after stacking. The main control encoder 42 records the number of rotations of the rewinding roller 44, which is the number of layers of film wound outside the rewinding roller 44. This is used to finally verify and calculate the thickness of the film. The verified film thickness is compared with the measurement data of the laser thickness measuring component 2 to improve the accuracy of film measurement.

[0039] Example 2: According to Figure 8 and Figure 9 As shown, the formula for the thickness of the film body re-inspected via the rewinding assembly 4 and the re-inspection assembly 6 is: ;

[0040] In the formula, For the membrane thickness to be re-inspected, The angular velocity of the rewinding roller 44 driven by the servo motor 41. and These are the number of rotations of the rewinding roller 44 recorded by the main encoder 42 at the two detection points. and The linear speed of the re-inspection roller 63 at the two detection points is measured by the speed sensor 62. The film thickness obtained by the re-inspection is compared and calibrated with the thickness measured by the laser thickness measuring component 2 to improve the accuracy of film thickness testing.

[0041] In this embodiment, by append Figure 8 It can be seen that after a period of laser thickness measurement, the number of film layers stored outside the rewinding roller 44 increases, and during this process, the rotation radius of the rewinding roller 44 changes from... Become ,in, This is the original rotation radius of the rewinding roller 44. This refers to the number of layers originally wound onto rewinding roller 44. This is the rotation radius of the subsequent rewinding roller 44. This refers to the number of layers that will be subsequently wound onto the rewinding roller 44. The radius of the rewinding roll 44 itself is determined by the attached... Figure 9 It can be seen that after a period of time, the rotational angular velocity of the rewinding roller 44 driven by the servo motor 41 will increase. Under the premise of no change, the rotational linear velocity of the rewinding roller 44 is changed from Become The change in linear velocity is obtained from the change in the radius of rotation. By combining the two sets of relationships, the solution can be obtained naturally. Relationship: The result can be obtained through calculations by the speed sensor 62 and the main encoder 42. value.

[0042] Example 3: According to Figure 1 , Figure 2 and Figure 3 As shown, the guide assembly 5 includes a guide roller 51, with positioning frames 52 rotatably connected to both ends of the guide roller 51. The bottom end of the positioning frame 52 is movably connected to the top surface of the platform 1. A constant pressure test assembly 3 is provided on both sides of the laser thickness measuring assembly 2. A crossbeam is provided inside the constant pressure test assembly 3, and telescopic sleeves 31 are provided on both sides of the crossbeam. An electric cylinder is provided inside the telescopic sleeve 31, and a sliding support table 32 is slidably connected to the outer wall of the telescopic sleeve 31. The sliding support table 32 is slidably connected to the surface of the telescopic sleeve 31 via the electric cylinder. An electric control base 33 is provided on one side of the constant pressure test assembly 3, and a sliding sleeve 34 is provided at the end of the telescopic sleeve 31. The sliding sleeve 34 is slidably connected to the crossbeam of the platform 1.

[0043] In this embodiment, in addition to re-inspecting the thickness of the film through the rewinding assembly 4 and the re-inspection assembly 6, pressure testing assemblies 3 can be added to both sides of the laser thickness measuring assembly 2 to directly press and calculate the film data. To achieve the above purpose, the servo motor 41 and the telescopic sleeve 31 need to work together. The servo motor 41 is set to a periodic stop operation mode. During the period when the servo motor 41 stops, the rewinding roller 44 no longer winds the film. The electric cylinder inside the telescopic sleeve 31 drives the two sets of bearing slides 32 to approach each other until the two bearing slides 32 contact the upper and lower surfaces of the film respectively. Strain sensors are set on the surface of the bearing slides 32. When they contact the film, they are subjected to strain pressure. At this time, the electric cylinder stops pushing. A sensor is set inside the electric control base 33 to record the working log of the electric cylinder and obtain the stroke of a single push in detail. The pushing stroke of the electric cylinder is inversely proportional to the thickness of the film. The film thickness obtained by this method is used to verify the accuracy of the laser thickness measuring assembly 2.

[0044] Example 4: According to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the laser thickness measuring component 2 has a test platform 22 at its bottom and a laser detection head 21 at its top. The laser detection head 21 is used to receive the laser beam downwards. A Bluetooth module 23 is also located at the top of the laser thickness measuring component 2, which is used to transmit test data online. The front of the platform 1 has a display screen 11 and a touch screen 12. The display screen 11 displays the rotational angular velocity and number of rotations of the rewinding roller 44 and the rotational angular velocity of the inspection roller 63. The touch screen 12 is used to adjust the rotational angular velocity of the rewinding roller 44 and the periodic measurement frequency of the constant pressure test component 3. The surface of the platform 1 has a power button 13 and an adjustment key 14. Support feet 15 are fixedly connected to the four corners at the bottom of the platform 1. The surface of the positioning frame 52 has threaded holes. The positioning frame 52 is mounted on the platform 1 by screws, and nuts are movably connected to the surfaces of the screws. The height of the guide roller 51 supported by the positioning frame 52 is adjusted by the nuts.

[0045] In this embodiment, in order to intuitively monitor the number of rotations of the rewinding roller 44 and the rotation speed of the re-inspection roller 63, a display screen 11 is set on the surface of the platform 1 to display various operating parameters online in real time. At the same time, a touch screen 12 is set outside the platform 1. The touch screen 12 displays the rotation speed of the rewinding roller 44 driven by the servo motor 41. This speed is the angular velocity of the rewinding roller 44. The corresponding parameters can be adjusted and changed directly by touch screen 12, or the parameters can be changed by adjustment key 14. The power button 13 is used to control the power of the entire equipment. It can also be used for emergency stop when the equipment malfunctions. The guide roller 51 is installed above the platform 1 through the positioning frame 2 52. The height position can be flexibly adjusted by the nut so that the membrane passes through the middle position of the constant pressure test component 3.

[0046] The device operates as follows: The membrane passes sequentially through the re-inspection roller 63 of the re-inspection assembly 6 and the guide rollers 51 of the two guide assemblies 5, and is finally spirally wound onto the rewinding roller 44 of the rewinding assembly 4. The laser detection head 21 of the laser thickness measuring assembly 2 directly measures the thickness of the membrane passing below it. Simultaneously, the rewinding roller 44 is driven by the servo motor 41 to rotate at a fixed angular velocity, and the number of rotations is recorded by the main control encoder 42. The rotational angular velocity of the re-inspection roller 63 is detected by the speed sensor 62. By utilizing the relationship between the real-time radius change of the rewinding roller 44 due to the increase in the number of windings and the linear velocity of the fixed radius of the rewinding roller 63, the membrane thickness can be verified. In addition, the constant pressure testing assemblies 3 on both sides of the laser thickness measuring assembly 2 drive the sliding table 32 through the telescopic sleeve 31 to press the membrane while the servo motor 41 is stopped. The thickness is further verified by combining the strain sensor and the electric cylinder stroke data. All data is transmitted via the Bluetooth module 23 and displayed on the display screen 11. Parameters can be adjusted via the touch screen 12 or the adjustment keys 14 to ensure the accuracy of the thickness measurement.

[0047] 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. A kind of high-performance film material on-line thickness gauge, including pedestal (1), the top surface of the pedestal (1) is provided with laser thickness measuring component (2), the laser thickness measuring component (2) is by emitting laser beam to the upper and lower surface of film body, the thickness of film body is measured using the time difference of reflected light, it is characterized by: Both sides of the laser thickness measuring assembly (2) are provided with guide assemblies (5), one side wall of the pedestal (1) is provided with a rewinding assembly (4), the other side wall of the pedestal (1) is provided with a rechecking assembly (6), the film body is guided through the rechecking assembly (6) and the two guide assemblies (5), and finally rewound in the rewinding assembly (4), the two guide assemblies (5) are used for guiding the film body to be parallel to the upper surface of the pedestal (1); The rewinding assembly (4) comprises a rewinding roller (44), both ends of the rewinding roller (44) are rotatably connected with a positioning frame one (43), the positioning frame one (43) is fixedly connected with the outer side wall of the pedestal (1), one end of the rewinding roller (44) is provided with a servo motor (41), the other end of the rewinding roller (44) is provided with a main control encoder (42), the servo motor (41) is used for driving the rewinding roller (44) to rotate at a fixed angular velocity, and the main control encoder (42) is used for recording the number of revolutions of the rewinding roller (44), the rechecking assembly (6) comprises a rechecking roller (63), both ends of the rechecking roller (63) are rotatably connected with a positioning frame three (61), the positioning frame three (61) is fixedly connected with the outer side wall of the pedestal (1), one end of the rechecking roller (63) is provided with a speed sensor (62), and the speed sensor (62) is used for testing the rotational angular velocity of the rechecking roller (63); The thickness formula of the re-inspected film body via the rewinding assembly (4) and the re-inspection assembly (6) is: ; In the formula, is the film thickness of the re-inspection, is the angular velocity of the servo motor (41) driving the rewinding roller (44) to rotate, and respectively are the number of revolutions of the rewinding roller (44) recorded by the main control encoder (42) at two detection points, and respectively are the linear speeds of the rewinding roller (63) measured by the speed sensor (62) at two detection points, and the film thickness of the re-inspection is compared with the thickness measured by the laser thickness measuring assembly (2) for calibration, thereby improving the accuracy of the thickness test of the film.

2. The on-line gauge of high performance membrane material according to claim 1, characterized in that: The guide assembly (5) comprises a guide roller (51), both ends of the guide roller (51) are rotatably connected with a positioning frame two (52), and the bottom end of the positioning frame two (52) is movably connected with the top surface of the pedestal (1).

3. The on-line gauge of high performance membrane material according to claim 2, characterized in that: Both sides of the laser thickness measuring assembly (2) are provided with a constant pressure testing assembly (3), the constant pressure testing assembly (3) is internally provided with a cross beam, both sides of the cross beam are internally provided with telescopic sleeves (31), the telescopic sleeves (31) are internally provided with electric cylinders, and the outer side walls of the telescopic sleeves (31) are slidably connected with sliding tables (32).

4. The on-line gauge of high performance membrane material according to claim 3, characterized in that: The sliding tables (32) are slidably connected on the surfaces of the telescopic sleeves (31) through the electric cylinders, one side of the constant pressure testing assembly (3) is provided with an electric control seat (33), the end of the telescopic sleeve (31) is provided with a sliding sleeve (34), and the sliding sleeve (34) is slidably connected on the cross beam of the pedestal (1).

5. The on-line gauge of high performance membrane material according to claim 4, characterized in that: The bottom end of the laser thickness measuring assembly (2) is provided with a test platform (22), the top end of the laser thickness measuring assembly (2) is provided with a laser detection head (21), the laser detection head (21) is used for downwardly receiving laser, the top end of the laser thickness measuring assembly (2) is provided with a Bluetooth module (23), and the Bluetooth module (23) is used for online transmission of test data.

6. The on-line gauge of high performance membrane material according to claim 5, characterized in that: The front of the pedestal (1) is provided with a display screen (11) and a touch screen (12), the display screen (11) is used for displaying the data of the rotational angular velocity and the number of revolutions of the rewinding roller (44) and the rotational angular velocity of the rechecking roller (63), and the touch screen (12) is used for touch control adjustment of the rotational angular velocity of the rewinding roller (44) and the regular measurement time frequency of the constant pressure testing assembly (3).

7. The on-line gauge of high performance membrane material according to claim 6, characterized in that: The surface of the pedestal (1) is provided with a power button (13) and an adjusting key (14), and the bottom end of the pedestal (1) is fixedly connected with supporting legs (15) at four corner positions.

8. The on-line gauge of high performance membrane material according to claim 7, characterized in that: The surface of the locating frame two (52) is provided with threaded holes, the locating frame two (52) is installed on the pedestal (1) through screws, and the surface of the screws is movably connected with nuts, and the height of the guide roller (51) supported by the locating frame two (52) is adjusted through the nuts.

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