A flexible film contact type measuring device for a new building material

Abstract

The application discloses a flexible film contact type measuring device for building new materials, and relates to the technical field of building new material measuring devices. The flexible film contact type measuring device for building new materials comprises a measuring seat, and a supporting seat is fixed to the top of the measuring seat. The flexible film contact type measuring device for building new materials is capable of reliably clamping the two ends of the flexible film to be detected between the placing roller and the compression roller, thereby effectively positioning the flexible film, by means of the hinged seat, bidirectional threaded rod, motor, threaded sleeve, bent rod, connecting seat, moving frame, transmission rod, transmission spring, compression roller and placing roller. Meanwhile, the two sets of compression rollers can be driven to move away from each other by starting the motor, thereby straightening the flexible film with wrinkles, thereby solving the problem that the measurement data is inaccurate due to the wrinkled surface of the flexible film when measuring the thickness of the flexible film.

Description

Technical Field

[0001] This invention relates to the field of measuring devices for new building materials, specifically a flexible thin-film contact measuring device for new building materials. Background Technology

[0002] With the rapid development of green and energy-efficient buildings, various new building materials are emerging and being widely used. In the field of energy-efficient building envelopes, low-emissivity glass, vacuum insulation panels, aerogel composite insulation materials, and building membrane structure materials, due to their excellent thermal insulation performance and lightweight, high-strength characteristics, have become important components of modern buildings. In terms of building exterior cladding and prefabricated buildings, thin or flexible materials such as flexible decorative panels, photovoltaic integrated roll materials, and waterproof and breathable membranes are also becoming increasingly popular. Before being put into use and during construction and installation, these new building materials typically require online or on-site testing of key geometric parameters such as thickness, flatness, surface morphology, compression deformation, and interlayer interface state.

[0003] Existing contact measurement devices for flexible films used in new building materials typically employ the following procedure when measuring the thickness of flexible films: First, the flexible film to be tested is laid flat on a dedicated inspection table. Then, the measuring head is moved vertically downwards until its tip contacts the top surface of the flexible film. The thickness data is obtained through contact sensing. However, in actual testing, if the flexible film itself has wrinkles, curls, or local unevenness, when the measuring head makes contact measurements with the film surface, local bulges or depressions will form on the surface of the film in the wrinkled areas. This prevents the measuring head from forming a stable and uniform contact with the true horizontal plane of the film. In this case, the height value measured by the measuring head may include additional height errors introduced by the wrinkles, resulting in distorted thickness data. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a flexible thin-film contact measuring device for new building materials, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flexible thin film contact measuring device for new building materials, comprising: a measuring base, a support base fixed to the top of the measuring base, a display screen fixed to the front of the measuring base, a displacement sensor passing through the support base and fixedly connected at the penetration point, a measuring rod passing through the displacement sensor and slidably connected at the penetration point, a disc fixed to the top of the measuring rod, a connecting spring fixed to the bottom of the disc, the bottom of the connecting spring fixed to the top of the displacement sensor, a measuring head fixed to the bottom of the measuring rod, the measuring head being made of polytetrafluoroethylene engineering plastic to prevent damage to the thin film during measurement, and a placement platform fixed to the top of the measuring base; A hinge base is fixed to the front of the placement platform. A motor is fixed to the side wall of the hinge base. A bidirectional threaded rod is fixed to the output end of the motor. The end of the bidirectional threaded rod is rotatably mounted on the inner side of the hinge base. A threaded sleeve is threadedly connected to the outer wall of the bidirectional threaded rod. The threaded sleeve is slidably mounted on the outer wall of the hinge base. A bent rod is fixed to the outer wall of a threaded sleeve. A connecting seat is fixed to the end of the bent rod away from the threaded sleeve. A movable frame is slidably installed on the top of the connecting seat. A transmission rod passes through the top of the movable frame and is slidably connected at the point of penetration. A transmission spring is fixed to the top of the movable frame, and the top of the transmission spring is fixed to the top protrusion of the transmission rod. The placement roller is fixed inside the moving frame, and a pressure roller is fixed at the bottom of the transmission rod. The top of the placement roller is flush with the top of the placement table. By setting the placement roller and the pressure roller, the film to be measured can be pressed and positioned.

[0006] According to the above technical solution, a reset spring is fixed to the side wall of the movable frame, and the side of the reset spring away from the movable frame is fixed to the top inner side of the connecting seat.

[0007] According to the above technical solution, a pressing block is fixed to the side wall of the moving frame, a pressure sensor is fixed to the top inner side of the connecting seat, a controller is fixed to the outer wall of the support seat, the pressure sensor is electrically connected to the controller, and the motor is electrically connected to the controller.

[0008] According to the above technical solution, the bottom of the support base is provided with a cleaning device, which is used to improve the accuracy of the measurement; the placement platform is provided with an adsorption device, which is used to ensure that the film adheres tightly to the placement platform.

[0009] According to the above technical solution, the impurity removal device includes: an L-shaped rod, which is fixed to the side wall of the movable frame; A guide rod is slidably installed on the inner side of the connecting seat. A transmission plate is fixed to the end of the guide rod. A slot is opened on the top of the transmission plate. An L-shaped push plate is slidably installed on the top of the transmission plate. The L-shaped gas storage box is fixed to the bottom of the support base. The internal piston of the L-shaped gas storage box is connected to a piston plate. A fixing plate is fixed to the inner side of the L-shaped gas storage box. A partition plate is slidably installed inside the fixing plate. The end of the partition plate is fixedly connected to the side wall of the piston plate. An elastic sheet is fixed to the side wall of the partition plate. The end of the elastic sheet away from the partition plate is fixed to the inner side of the fixing plate.

[0010] A side vent pipe is fixed to the side wall of the L-shaped air storage box. A bottom vent pipe is fixed to the bottom of the L-shaped air storage box. The side vent pipe and the bottom vent pipe are connected to the inside of the L-shaped air storage box. Dustproof nets are fixed to the ends of the side vent pipe and the bottom vent pipe. By setting the dustproof nets, dust and other particles can be prevented from being sucked into the L-shaped air storage box.

[0011] According to the above technical solution, a rotating block is rotatably installed inside the L-shaped gas storage box, and a torsion spring is fixed to the bottom of the rotating block. The bottom of the torsion spring is fixed to the inside of the L-shaped gas storage box.

[0012] According to the above technical solution, a protruding block is fixed at the end of the rotating block, the outer wall of the protruding block is in contact with the outer wall of the end of the L-shaped push plate, and the L-shaped push plate passes through the side wall of the L-shaped gas storage box and is slidably connected at the passage.

[0013] According to the above technical solution, the adsorption device includes: a hinge block, which is fixed to the side wall of the L-shaped push plate; a cavity is provided on the placement platform, and an air suction plate is slidably installed inside the cavity; a push rod is fixed to the top of the air suction plate, the push rod passes through the top of the placement platform and is slidably connected at the passage; a hinge rod is hinged to the top of the push rod, and the end of the hinge rod away from the push rod is hinged to the hinge block; The suction pipe is fixed to the top inner side of the placement platform and communicates with the cavity. A suction cup is fixed to the top of the suction pipe.

[0014] This invention provides a flexible thin-film contact measuring device for new building materials. It has the following advantages: This invention, by incorporating a hinged seat, a bidirectional threaded rod, a motor, a threaded sleeve, a bending rod, a connecting seat, a moving frame, a transmission rod, a transmission spring, a pressure roller, and a placement roller, reliably clamps both ends of the flexible film to be tested between the placement roller and the pressure roller, thereby achieving effective positioning of the flexible film. Simultaneously, by activating the motor, the two sets of pressure rollers can be moved away from each other, thus straightening the wrinkled flexible film. This solves the problem of inaccurate measurement data caused by the wrinkled surface of the film when measuring the thickness of flexible films. This invention, by incorporating an extrusion block, a pressure sensor, and a controller, addresses the issue that after the flexible film is straightened, the placement roller and pressure roller maintain the film in a compressed state, and the threaded sleeve continues to move, causing the connecting seat to continue moving the moving frame. At this point, because the frictional force between the flexible film and the pressure roller is greater than the spring coefficient of the return spring, the flexible film is no longer further straightened. The pressure roller, however, is subjected to force on the moving frame, causing it to experience tensile force and move on the connecting seat. This, in turn, causes the extrusion block to press against the pressure sensor, which transmits a signal to the controller. The controller then shuts off the motor, preventing the pressure roller from continuing to apply a straightening effect to the flexible film. This solves the problem that if the pressure roller continues to straighten the flexible film after it has been straightened, the film is prone to stretching and deformation, leading to changes in its thickness and inaccurate measurement results. This invention, after straightening the flexible film, incorporates a guide rod, an L-shaped rod, a transmission plate, a slot, an L-shaped push plate, an L-shaped air storage box, a piston plate, a rotating block, a protrusion, and a side air outlet pipe. This allows the side air outlet pipe to expel air towards the measuring head, thereby blowing away impurities attached to the bottom of the measuring head and cleaning it. This solves the problem that impurities attached to the bottom of the measuring head prevent complete contact between the bottom of the measuring head and the top of the flexible film during measurement, leading to errors in the thickness measurement structure. This invention, by setting a bottom vent pipe, can squeeze and discharge the gas stored at the bottom of the partition plate and fixed plate in the L-shaped gas storage box when the piston plate moves, allowing the gas to be discharged from the bottom vent pipe. The curved design of the bottom vent pipe aligns the outlet of the bottom vent pipe with the detection position of the flexible film, blowing away dust and other impurities attached to the detection position of the flexible film. This solves the problem that if dust and impurities are not cleaned from the surface of the flexible film detection position, the measurement results will be incorrect due to interference from impurities during thickness measurement. This invention, by incorporating a hinge block, hinge rod, push rod, cavity, suction plate, suction pipe, and suction cup, allows the flexible film to be adsorbed onto the placement stage when placed, ensuring a tight fit between the flexible film and the stage surface. This prevents unevenness in the film during measurement, which could prevent the measuring head from maintaining stable contact with the film surface and thus cause inaccurate thickness measurements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a schematic diagram of the connector structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixing plate of the present invention; Figure 7 For the present invention Figure 3 An enlarged schematic diagram of the A structure.

[0016] In the diagram: 1. Measuring base; 2. Support base; 3. Display screen; 4. Displacement sensor; 5. Measuring rod; 6. Disc; 7. Measuring head; 8. Connecting spring; 9. Placement stage; 10. Hinge seat; 11. Bidirectional threaded rod; 12. Motor; 13. Threaded sleeve; 14. Bending rod; 15. Connecting seat; 16. Moving frame; 17. Transmission rod; 18. Transmission spring; 20. Pressure roller; 21. Placement roller; 22. Return spring; 23. Extrusion block; 24. Pressure sensor; 25. Control... 301. Control device; 302. Guide rod; 303. L-shaped rod; 304. Transmission plate; 305. Slot; 306. L-shaped push plate; 307. L-shaped air storage box; 308. Piston plate; 309. Rotating block; 310. Protruding block; 311. Fixing plate; 312. Divider plate; 313. Side air outlet pipe; 401. Bottom air outlet pipe; 402. Hinge block; 403. Hinge rod; 404. Push rod; 405. Cavity; 406. Suction plate; 407. Suction cup. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-7 One embodiment of the present invention is as follows: a flexible thin-film contact measuring device for new building materials, comprising: a measuring base 1, a hinged base 10, a bending rod 14, and a placement roller 21; a support base 2 is fixed to the top of the measuring base 1, a display screen 3 is fixed to the front of the measuring base 1, a displacement sensor 4 passes through the support base 2 and is fixedly connected at the penetration point, a measuring rod 5 passes through the displacement sensor 4 and is slidably connected at the penetration point, a disc 6 is fixed to the top of the measuring rod 5, a connecting spring 8 is fixed to the bottom of the disc 6, and the bottom of the connecting spring 8 is fixed to the displacement sensor 2. A measuring head 7 is fixed to the top of the sensor 4 and the bottom of the measuring rod 5. The measuring head 7 is made of polytetrafluoroethylene engineering plastic to prevent damage to the diaphragm during measurement. A placement platform 9 is fixed to the top of the measuring base 1. A hinge base 10 is fixed to the front of the placement platform 9. A motor 12 is fixed to the side wall of the hinge base 10. A bidirectional threaded rod 11 is fixed to the output end of the motor 12. The end of the bidirectional threaded rod 11 is rotatably mounted inside the hinge base 10. A threaded sleeve 13 is threadedly connected to the outer wall of the bidirectional threaded rod 11. The threaded sleeve 13 is slidably mounted. On the outer wall of the hinge seat 10, a bent rod 14 is fixed to the outer wall of the threaded sleeve 13. A connecting seat 15 is fixed to the end of the bent rod 14 away from the threaded sleeve 13. A movable frame 16 is slidably mounted on the top of the connecting seat 15. A transmission rod 17 passes through the top of the movable frame 16 and is slidably connected at the point of penetration. A transmission spring 18 is fixed to the top of the movable frame 16, and the top of the transmission spring 18 is fixed to the top protrusion of the transmission rod 17. A placement roller 21 is fixed to the inner side of the movable frame 16. A pressure roller 20 is fixed to the bottom of the transmission rod 17, and the top of the placement roller 21... The top of the frame 16 is flush with the top of the placement platform 9. The film to be measured can be pressed and positioned by setting the placement roller 21 and the pressure roller 20. A return spring 22 is fixed on the side wall of the moving frame 16. The side of the return spring 22 away from the moving frame 16 is fixed on the top inner side of the connecting seat 15. An extrusion block 23 is fixed on the side wall of the moving frame 16. A pressure sensor 24 is fixed on the top inner side of the connecting seat 15. A controller 25 is fixed on the outer wall of the support seat 2. The pressure sensor 24 and the controller 25 are electrically connected. The motor 12 and the controller 25 are electrically connected.

[0019] By setting up a hinge seat 10, a bidirectional threaded rod 11, a motor 12, a threaded sleeve 13, a bending rod 14, a connecting seat 15, a moving frame 16, a transmission rod 17, a transmission spring 18, a pressure roller 20, and a placement roller 21, the two ends of the flexible film to be tested can be reliably clamped between the placement roller 21 and the pressure roller 20, thereby achieving effective positioning of the flexible film. At the same time, by starting the motor 12, the two sets of pressure rollers 20 can be driven to move away from each other, thereby straightening the wrinkled flexible film. This solves the problem of inaccurate measurement data caused by the wrinkled state of the film surface when measuring the thickness of flexible films. By setting up the extrusion block 23, pressure sensor 24, and controller 25, after the flexible film is straightened, the placement roller 21 and pressure roller 20 still keep the film in a pressed state, and the threaded sleeve 13 continues to move, causing the connecting seat 15 to continue moving the moving frame 16. At this time, since the friction between the flexible film and the pressure roller 20 is greater than the elastic coefficient of the return spring 22, the flexible film is no longer straightened further, while the pressure roller 20 is subjected to force on the moving frame 16, causing the moving frame 16 to be subjected to tensile force and move on the connecting seat 15, thereby driving the extrusion block 23 to press the pressure sensor 24. The sensor transmits the signal to the controller 25, and the controller 25 then controls the motor 12 to shut down, thereby preventing the pressure roller 20 from continuing to apply a straightening effect to the flexible film. This solves the problem that if the pressure roller 20 continues to perform straightening operations after the flexible film is straightened, it is easy for the film to be stretched and deformed, which will cause changes in its thickness and result in inaccurate measurement results.

[0020] In this embodiment, when it is necessary to detect the thickness of the flexible film, the transmission rod 17 is pulled to move the pressure roller 20 upward, which stretches the transmission spring 18 and places the end of the flexible film between the pressure roller 20 and the placement roller 21. By releasing the transmission rod 17, the pressure roller 20 presses the flexible film between the pressure roller 20 and the placement roller 21, fixing both ends of the flexible film. After fixing, the motor 12 is started to rotate the bidirectional threaded rod 11. The bidirectional threaded rod 11 drives the two sets of threaded sleeves 13 to move away from each other. When the threaded sleeves 13 move away from each other, they can drive the bending rod 14 to move. When the bending rod 14 moves, it can drive the connecting seat 15 to move. When the connecting seat 15 moves, it can drive the moving frame 16 to move. When the moving frame 16 moves, the pressure roller 20 drives the pressed flexible film to move, which can straighten the wrinkled flexible film and put the flexible film in a taut state. Furthermore, when the flexible film is stretched, as the threaded sleeve 13 continues to move the connecting seat 15 via the bending rod 14, the flexible film stops moving. This causes the friction between the flexible film and the pressure roller 20 to enable the flexible film to move the moving frame 16 on the connecting seat 15. This causes the moving frame 16 to compress the reset spring 22 and the pressing block 23 on the moving frame 16 to press against the surface of the pressure sensor 24. This causes the pressure sensor 24 to send an electrical signal to the controller 25, which then controls the motor 12 to shut down, preventing the threaded sleeve 13 from moving and thus stopping the pressure roller 20 from moving. Once the flexible film is positioned and taut, the measuring rod 5 is moved downwards, causing the measuring head 7 to move downwards and fit against the top of the flexible film. Because the measuring rod 5 moves within the displacement sensor 4, the thickness of the flexible film can be measured. The measured thickness can be viewed on the display screen 3. When the measuring rod 5 moves downwards, the connecting spring 8 is compressed. After the measurement is completed, the measuring rod 5 is released, allowing the connecting spring 8 to move the measuring rod 5 upwards to reset.

[0021] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, a cleaning device is provided at the bottom of the support base 2, which is used to improve the accuracy of the measurement. The impurity removal device includes: a guide rod 301, an L-shaped rod 302, a transmission plate 303, a slot 304, an L-shaped push plate 305, an L-shaped air storage box 306, a piston plate 307, a rotating block 308, a protruding block 309, a fixing plate 310, a partition plate 311, a side air outlet pipe 312, and a bottom air outlet pipe 313; the L-shaped rod 302 is fixed to the side wall of the moving frame 16, the guide rod 301 is slidably installed on the inner side of the connecting seat 15, the end of the guide rod 301 is fixed with the transmission plate 303, and the top of the transmission plate 303 has a slot 304. An L-shaped push plate 305 is slidably mounted on the top of the moving plate 303. An L-shaped gas storage box 306 is fixed to the bottom of the support base 2. The L-shaped gas storage box 306 stores gas. A piston plate 307 is connected to the piston inside the L-shaped gas storage box 306. A fixing plate 310 is fixed to the inside of the L-shaped gas storage box 306. A partition plate 311 is slidably mounted inside the fixing plate 310. The fixing plate 310 and the partition plate 311 can separate the gas inside the L-shaped gas storage box 306. When the piston plate 307 moves, the gas inside the L-shaped gas storage box 306 can be separated. Gas is discharged from the side outlet pipe 312 and the bottom outlet pipe 313 respectively. An elastic sheet is fixed to the side wall of the partition plate 311, with the end of the elastic sheet away from the partition plate 311 fixed to the inner side of the fixed plate 310. The end of the partition plate 311 is fixedly connected to the side wall of the piston plate 307. The side outlet pipe 312 is fixed to the side wall of the L-shaped gas storage box 306. A bottom outlet pipe 313 is fixed to the bottom of the L-shaped gas storage box 306. The side outlet pipe 312 and the bottom outlet pipe 313 communicate with the inside of the L-shaped gas storage box 306. 2. A dustproof net is fixed to the end of the bottom air outlet pipe 313. By setting the dustproof net, dust and other particles can be prevented from being sucked into the L-shaped air storage box 306. A rotating block 308 is rotatably installed inside the L-shaped air storage box 306. A torsion spring is fixed to the bottom of the rotating block 308. The bottom of the torsion spring is fixed to the inner side of the L-shaped air storage box 306. A protrusion block 309 is fixed to the end of the rotating block 308. The outer wall of the protrusion block 309 is in contact with the outer wall of the end of the L-shaped push plate 305. The L-shaped push plate 305 passes through the side wall of the L-shaped air storage box 306 and is slidably connected at the passage.

[0022] After the flexible film is straightened, by setting guide rod 301, L-shaped rod 302, transmission plate 303, slot 304, L-shaped push plate 305, L-shaped air storage box 306, piston plate 307, rotating block 308, protrusion block 309 and side air outlet pipe 312, the side air outlet pipe 312 can exhaust air to the measuring head 7, thereby blowing away impurities and other debris attached to the bottom of the measuring head 7, cleaning the bottom of the measuring head 7, and solving the problem that impurities attached to the bottom of the measuring head 7 cause the bottom of the measuring head 7 to not be in complete contact with the bottom of the flexible film during the measurement operation, resulting in errors in the thickness measurement structure. By setting a bottom vent pipe 313, when the piston plate 307 moves, the gas stored at the bottom of the partition plate 311 and the fixed plate 310 in the L-shaped gas storage box 306 can be squeezed out and discharged, so that the gas is discharged from the bottom vent pipe 313. By setting the bottom vent pipe 313 to be curved, the outlet of the bottom vent pipe 313 is aligned with the detection position of the flexible film, and the dust and other impurities attached to the detection position of the flexible film are blown away. This solves the problem that if the dust and impurities attached to the surface of the detection position of the flexible film are not cleaned, the measurement results will be incorrect due to the interference of impurities during the thickness measurement.

[0023] An adsorption device is provided on the placement platform 9. The adsorption device is used to tightly adhere the film to the placement platform 9. The adsorption device includes: a hinge block 401, a hinge rod 402, a push rod 403, a cavity 404, a suction plate 405, a suction pipe 406, and a suction cup 407. The hinge block 401 is fixed to the side wall of the L-shaped push plate 305. A cavity 404 is provided on the placement platform 9. The suction plate 405 is slidably installed inside the cavity 404. The top of the suction plate 405 is fixed with a push rod 403. The push rod 403 passes through the top of the placement platform 9 and is slidably connected at the point of penetration. The top of the push rod 403 is hinged with a hinge rod 402. The end of the hinge rod 402 away from the push rod 403 is hinged to the hinge block 401. The suction pipe 406 is fixed to the inner side of the top of the placement platform 9. The suction pipe 406 communicates with the cavity 404. The top of the suction pipe 406 is fixed with a suction cup 407.

[0024] By setting up a hinge block 401, a hinge rod 402, a push rod 403, a cavity 404, an air suction plate 405, an air suction pipe 406, and a suction cup 407, when the flexible film is placed on the placement stage 9, the suction cup 407 can adsorb the flexible film on the placement stage 9, so that the flexible film is tightly attached to the surface of the placement stage 9. This prevents the flexible film from not being tightly attached to the placement stage 9, which would cause the film to be uneven during the measurement process, making it impossible for the measuring head 7 to make stable contact with the film surface, thus causing inaccurate thickness measurement data.

[0025] In this embodiment, when the moving frame 16 moves on the connecting seat 15, it drives the L-shaped rod 302 to move, causing the L-shaped rod 302 to move within the slot 304. When the L-shaped rod 302 reaches the inclined surface of the slot 304, it presses against the inclined surface of the slot 304, causing the slot 304 to be compressed and drive the transmission plate 303 to move, causing the guide rod 301 to move outward from the connecting seat 15. When the transmission plate 303 moves, it can drive the L-shaped push plate 305 to move, causing the L-shaped push plate 305 to press against the protrusion 309, causing the protrusion 309 to rotate. The rotation of the protrusion 309 can drive the rotating block 308 to rotate. When the rotating block 308 rotates, it will compress and deform the torsion spring. At the same time as the rotating block 308 rotates, it can squeeze the piston plate 307 to move in the L-shaped air storage box 306. This allows the piston plate 307 to move in the L-shaped air storage box 306. When the piston plate 307 moves, it can drive the partition plate 311 to move, causing the partition plate 311 to move within the fixed plate 310 and compress the elastic sheet. This allows the piston plate 307 to squeeze the gas in the L-shaped air storage box 306 out through the side air outlet pipe 312. The gas discharged through the side air outlet pipe 312 can blow off the impurities attached to the bottom of the measuring head 7. Furthermore, when the piston plate 307 moves, it can also discharge the gas at the bottom of the separator plate 311, allowing the gas at the bottom of the separator plate 311 to be discharged through the bottom vent pipe 313. The gas discharged from the bottom vent pipe 313 blows away the impurities attached to the flexible film measurement area. When the flexible film is removed from the pressure roller 20, the return spring 22 can drive the moving frame 16 to reset on the connecting seat 15. When the moving frame 16 resets, it drives the L-shaped rod 302 to reset, thereby causing the L-shaped rod 302 to compress and drive the transmission. The plate 303 moves toward the connecting seat 15, so that the L-shaped push plate 305 does not press the protrusion 309. Because the torsion spring is in a compressed state, the torsion spring drives the rotating block 308 to reset, so that the rotating block 308 does not press the piston plate 307. And because the elastic sheet is in a compressed state, the partition plate 311 can drive the piston plate 307 to reset. And through the movement of the piston plate 307, the side air outlet pipe 312 and the bottom air outlet pipe 313 can draw the outside air back into the L-shaped air storage box 306 for the next blowing operation. When the L-shaped push plate 305 moves, it can squeeze the hinge rod 402, causing the hinge rod 402 to rotate at the hinge, thereby allowing the push rod 403 to move downward. When the push rod 403 moves downward, it can drive the suction plate 405 to move downward. When the suction plate 405 moves downward, it can cause the suction cup 407 to generate suction, thereby adsorbing the flexible film and tightly adhering it to the top of the placement platform 9.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible thin-film contact measuring device for new building materials, characterized in that, include: Measuring base (1), the top of the measuring base (1) is fixed with a support base (2), the front of the measuring base (1) is fixed with a display screen (3), the support base (2) has a displacement sensor (4) passing through it and is fixedly connected at the point of penetration, the displacement sensor (4) has a measuring rod (5) passing through it and is slidably connected at the point of penetration, the top of the measuring rod (5) is fixed with a disc (6), the bottom of the disc (6) is fixed with a connecting spring (8), the bottom of the connecting spring (8) is fixed to the top of the displacement sensor (4), the bottom of the measuring rod (5) is fixed with a measuring head (7), the measuring head (7) is made of polytetrafluoroethylene engineering plastic, so that the measuring head (7) will not cause pressure damage to the film when measuring, and the top of the measuring base (1) is fixed with a placement platform (9). A hinge seat (10) is fixed on the front of the placement platform (9). A motor (12) is fixed on the side wall of the hinge seat (10). A bidirectional threaded rod (11) is fixed at the output end of the motor (12). The end of the bidirectional threaded rod (11) is rotatably mounted on the inner side of the hinge seat (10). A threaded sleeve (13) is threadedly connected to the outer wall of the bidirectional threaded rod (11). The threaded sleeve (13) is slidably mounted on the outer wall of the hinge seat (10). A bent rod (14) is fixed to the outer wall of a threaded sleeve (13). A connecting seat (15) is fixed to one end of the bent rod (14) away from the threaded sleeve (13). A movable frame (16) is slidably installed on the top of the connecting seat (15). A transmission rod (17) passes through the top of the movable frame (16) and is slidably connected at the passage. A transmission spring (18) is fixed to the top of the movable frame (16). The top of the transmission spring (18) is fixed to the top protrusion of the transmission rod (17). Placement roller (21) is fixed inside the moving frame (16). A pressure roller (20) is fixed at the bottom of the transmission rod (17). The top of the placement roller (21) is flush with the top of the placement table (9). By setting the placement roller (21) and the pressure roller (20), the film to be measured can be pressed and positioned.

2. The flexible thin-film contact measuring device for new building materials according to claim 1, characterized in that, A reset spring (22) is fixed to the side wall of the movable frame (16), and the side of the reset spring (22) away from the movable frame (16) is fixed to the top inner side of the connecting seat (15).

3. The flexible thin-film contact measuring device for new building materials according to claim 2, characterized in that, The side wall of the movable frame (16) is fixed with a pressing block (23), the top inner side of the connecting seat (15) is fixed with a pressure sensor (24), the outer wall of the support seat (2) is fixed with a controller (25), the pressure sensor (24) is electrically connected to the controller (25), and the motor (12) is electrically connected to the controller (25).

4. The flexible thin-film contact measuring device for new building materials according to claim 3, characterized in that, The bottom of the support base (2) is provided with a cleaning device, which is used to improve the accuracy of the measurement; the placement platform (9) is provided with an adsorption device, which is used to ensure that the film adheres tightly to the placement platform (9).

5. The flexible thin-film contact measuring device for new building materials according to claim 4, characterized in that, The impurity removal device includes an L-shaped rod (302), which is fixed to the side wall of the movable frame (16); Guide rod (301), the guide rod (301) is slidably installed on the inner side of the connecting seat (15), the end of the guide rod (301) is fixed with a transmission plate (303), the top of the transmission plate (303) is provided with a slot (304), and an L-shaped push plate (305) is slidably installed on the top of the transmission plate (303). L-shaped gas storage box (306), the L-shaped gas storage box (306) is fixed to the bottom of the support base (2), the piston inside the L-shaped gas storage box (306) is connected to a piston plate (307), a fixing plate (310) is fixed to the inner side of the L-shaped gas storage box (306), a partition plate (311) is slidably installed inside the fixing plate (310), the end of the partition plate (311) is fixedly connected to the side wall of the piston plate (307), an elastic sheet is fixed to the side wall of the partition plate (311), and the end of the elastic sheet away from the partition plate (311) is fixed to the inner side of the fixing plate (310); A side vent pipe (312) is fixed to the side wall of the L-shaped air storage box (306). A bottom vent pipe (313) is fixed to the bottom of the L-shaped air storage box (306). The side vent pipe (312) and the bottom vent pipe (313) are connected to the inside of the L-shaped air storage box (306). Dustproof nets are fixed to the ends of the side vent pipe (312) and the bottom vent pipe (313). By setting dustproof nets, dust and other particles can be prevented from being sucked into the L-shaped air storage box (306).

6. The flexible thin-film contact measuring device for new building materials according to claim 5, characterized in that, A rotating block (308) is rotatably installed inside the L-shaped gas storage box (306). A torsion spring is fixed to the bottom of the rotating block (308), and the bottom of the torsion spring is fixed to the inside of the L-shaped gas storage box (306).

7. The flexible thin-film contact measuring device for new building materials according to claim 6, characterized in that, The end of the rotating block (308) is fixed with a protrusion (309), the outer wall of the protrusion (309) is in contact with the outer wall of the end of the L-shaped push plate (305), and the L-shaped push plate (305) passes through the side wall of the L-shaped gas storage box (306), and the passage is slidably connected.

8. The flexible thin-film contact measuring device for new building materials according to claim 7, characterized in that, The adsorption device includes: a hinge block (401), which is fixed to the side wall of an L-shaped push plate (305); a cavity (404) is provided on the placement platform (9), and an air suction plate (405) is slidably installed inside the cavity (404). A push rod (403) is fixed to the top of the air suction plate (405), and the push rod (403) passes through the top of the placement platform (9) and is slidably connected at the point of penetration. A hinge rod (402) is hinged to the top of the push rod (403), and one end of the hinge rod (402) away from the push rod (403) is hinged to the hinge block (401). The suction pipe (406) is fixed on the inner side of the top of the placement platform (9). The suction pipe (406) is connected to the cavity (404). A suction cup (407) is fixed on the top of the suction pipe (406).

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