Laminated paper film thickness measuring device

Abstract

The invention relates to a coated paper film thickness measuring device, and relates to the technical field of film thickness measurement, the coated paper film thickness measuring device comprises a workbench, two side plates, four mounting seats and two back plates, the two side plates are vertically fixed on the left side and the right side of the upper surface of the workbench, and every two of the four mounting seats form a group; the two groups of mounting seats are respectively fixed with the upper surface of the workbench and the top ends of the two side plates, the two back plates are both located at the rear side of the workbench and are fixed with the ground, and the mounting seats are provided with thickness measuring mechanisms for measuring the thickness of a coated paper film. According to the coated paper film thickness measuring device, the horizontal position of the photoelectric detector can be accurately controlled through the linear module, automatic alignment of the photoelectric detector on the movable plate is achieved through the laser transmitter and the laser receiver, and the moving distance of the movable plate is monitored in real time through the photoelectric displacement sensor; therefore, under the cooperation of the laser transmitter and the laser receiver with the photoelectric displacement sensor, the two photoelectric detectors are always kept in high-precision alignment.

Description

Technical Field

[0001] The present invention relates to the technical field of thin film thickness measurement, and specifically to a thickness measurement device for coated paper thin films. Background Art

[0002] Coated paper thin film is a material formed by laminating a plastic thin film (such as polyethylene, polypropylene, etc.) to paper through a specific process. This material combines the printing performance of paper and the waterproof, moisture-proof, and oil-proof properties of the plastic thin film, and is widely used in fields such as food packaging, pharmaceutical packaging, and daily necessities packaging. During the production of coated paper thin films, thickness measurement is required because the thickness uniformity of the coated paper thin film directly affects its waterproof, moisture-proof, and oil-proof properties. If the thickness is uneven, it may lead to insufficient protection performance in some areas. Secondly, insufficient thickness may cause the thin film to be easily broken or damaged during use, affecting the integrity of the packaging.

[0003] In the prior art, contact measurement is generally used to measure the thickness of coated paper thin films. However, measuring the thickness of coated paper thin films through mechanical contact is only applicable to static measurement and will cause scratches on the surface of the coated paper thin film. Therefore, Chinese Patent CN116753851B discloses a thickness measurement system device and measurement method for coated paper thin films. In this invention, a reference test square plate with singular ridge lines is rotated by 90 degrees to adjust the positions of two photodetectors that are mirror-symmetrical on the upper and lower sides, so that the two photodetectors that are mirror-symmetrical on the upper and lower sides are accurately vertically aligned. By controlling the speed change law of the photodetectors during horizontal movement, the detection path of the photodetectors on the coated paper shows a periodic curve change, significantly reducing the longitudinal width dimension of any non-detected high-risk area.

[0004] In the above application, although the method of using the reference test square plate to position the two photodetectors can achieve a certain alignment function, there are still some deficiencies, specifically as follows: During use, the reference test square plate will be worn or deformed due to frequent installation and disassembly, long-term mechanical friction, etc. Especially the sharp corner protrusions, and the change in their shape and size will directly affect the positioning accuracy of the photodetectors.

[0005] The reference test square plate needs to be accurately placed and fixed between the two photodetectors. If the installation position is inaccurate or the fixation is not firm, it may cause deviation in the positioning of the photodetectors. For example, inaccurate placement angle of the square plate or looseness at the fixed clamping position will affect the alignment effect.

[0006] The material of the reference test square plate needs to have good stability and durability. If the material deforms or ages under different environmental conditions (such as temperature changes, humidity changes, etc.), its accuracy will be affected. In addition, if impurities such as dust and oil stains adhere to the surface of the square plate, it may also interfere with the signal of the photodetector.

[0007] Aiming at the deficiency of using the reference test square plate to position two photoelectric sensors in the above application, the present application proposes a film-coated paper film thickness measuring device to solve the above problems. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the present invention provides a film-coated paper film thickness measuring device. The horizontal position of the photodetector is controlled by a linear module to align the photodetectors on two movable plates. The laser receiver is enabled by the laser emitter emitting laser. When the laser emitter and the laser receiver are aligned, the two photodetectors can be aligned. Secondly, the relative movement distance of the movable plate with respect to the side plate can be measured through the cooperation of the photoelectric displacement sensor and the photoelectric receiving piece, and further the movement distance of the photodetector on the movable plate can be detected. Therefore, through the cooperation between the two, the alignment work of the two photodetectors is realized to solve the problem of inaccurate positioning of the two photoelectric sensors using the reference test square plate.

[0009] To achieve the above object, the present invention provides the following technical solution: A film-coated paper film thickness measuring device, including a workbench, two side plates, four mounting seats and two back plates. The two side plates are vertically fixed on the left and right sides of the upper surface of the workbench. The four mounting seats are divided into two groups in pairs, and the two groups of mounting seats are respectively fixed to the upper surface of the workbench and the tops of the two side plates. The two back plates are both located at the rear of the workbench and fixed to the ground. A thickness measuring mechanism for measuring the thickness of the film-coated paper film is provided on the mounting seat, and an auxiliary cleaning mechanism for improving the test accuracy of the thickness measuring mechanism is provided on the back plate; Among them, the thickness measuring mechanism includes two photodetectors for testing the thickness of the film-coated paper film, a driving component for driving the two photodetectors to move, and an alignment component for aligning the two photodetectors; The driving component includes two linear modules, two sliding plates, eight connecting columns, two positioning columns and two movable plates. The two linear modules are respectively fixed to the upper and lower mounting seats. The two sliding plates are respectively fixed to the moving sliders on the two linear modules. The eight connecting columns are divided into two groups with four in each group. The two groups of connecting columns are respectively fixed to the two sliding plates. The closer ends of the two groups of connecting columns are respectively fixed to the two movable plates. The two positioning columns are vertically distributed and vertically fixed between the opposite sides of the two side plates, and the two positioning columns are respectively slidably connected to the two movable plates; The two photodetectors are respectively fixed at the centers of the opposite sides of the two movable plates. The alignment assembly includes a laser emitter and a laser receiver respectively fixed on the opposite sides of the two movable plates and located on the left and right sides of the photodetectors, a photoelectric displacement sensor fixed on the upper right side of the upper movable plate and the lower left side of the lower movable plate, a horizontally fixed support plate between the opposite sides of the two back plates, and an environmental sensing module fixed on the upper surface of the support plate.

[0010] Further, the highest height of the side plates is greater than the highest height of the back plate 4, and the side plates are located in front of the back plate 4. The two sliding plates are both horizontally arranged and parallel to each other.

[0011] Further, the four connecting columns in the upper group are respectively on the same vertical line as the four connecting columns in the lower group. Positioning holes are opened on one side of the two movable plates, and the movable plates linearly slide on the outside of the positioning columns through the positioning holes.

[0012] Further, on the opposite sides of the two side plates, there are respectively fixed photoelectric receiving sheets facing the directions of the two photoelectric displacement sensors. The environmental sensing module is integrally provided with a light intensity sensor, a dust concentration sensor, and a humidity sensor.

[0013] Further, the auxiliary cleaning mechanism includes a spraying assembly and a drying assembly. The spraying assembly and the drying assembly are both arranged above the workbench and the back plate and are used for cleaning and removing dust from the film paper. The spraying assembly includes two spraying pipes rotatably connected by bearings between the opposite sides of the two back plates. A plurality of evenly distributed atomizing nozzles are fixedly connected to the outside of the two spraying pipes. An electric push rod is fixed on the left side of the upper surface of the support plate. One end of the output shaft of the electric push rod is fixed with a toothed plate. Gears meshing with the toothed plate are respectively fixed on the outside of the two spraying pipes. The right ends of the two spraying pipes both penetrate and extend to the right side of the right back plate and are rotatably communicated with a three-way pipe through a shaft.

[0014] Further, the spraying assembly further includes a water tank fixed on the inner bottom wall of the workbench. A water pump is fixed on the upper surface of the water tank. The water inlet end and the water outlet end of the water pump are respectively communicated with the water tank and the three-way pipe through pipelines.

[0015] Further, the drying assembly includes two hot air pipes rotatably connected by bearings to the fronts of the two back plates. Two cleaning sponges are respectively fixed on the outside of the two hot air pipes. A plurality of hot air holes are opened on the outside of the hot air pipes and between the two cleaning sponges. A connecting pipe is fixed on the front of the left back plate. The connecting pipe is respectively rotatably connected to the two hot air pipes through sealed bearings. A motor is fixed on the front of the right back plate. The output shaft of the motor is respectively connected to the right ends of the two hot air pipes through a belt drive.

[0016] Furthermore, the drying component further includes a drying box, several guide plates, an air inlet pipe, a blower, several heating wires, a dust-proof net, and an air outlet pipe. The drying box is fixed to the inner bottom wall of the workbench. Several of the guide plates are respectively fixed to the top wall and the bottom wall of the inner cavity of the drying box. The air inlet pipe and the air outlet pipe are respectively connected and fixed to the left and right sides of the drying box, and the other end of the air outlet pipe is connected and fixed to the connecting pipe. The dust-proof net and the blower are sequentially fixed in the air inlet pipe from left to right. Several heating wires are respectively fixed to one side of several guide plates.

[0017] Furthermore, the hot air pipe includes two pipe A and one pipe B. The two pipe A are respectively connected and fixed to the left and right sides of the pipe B. The outer diameter of the pipe B is larger than that of the pipe A. The cleaning sponge is fixed to the outside of the pipe B, and the cross-sectional shape of the cleaning sponge is arc-shaped.

[0018] Furthermore, two guide rollers are respectively rotatably connected to the front surface of the workbench and the back surface of the back plate through bearings, and a film paper film body is driven between the two guide rollers. The film paper film body is located between the upper and lower hot air pipes and the upper and lower spray pipes.

[0019] Compared with the prior art, the technical solution of the present application has the following beneficial effects: 1. For this film paper film thickness measuring device, the linear module can accurately control the horizontal position of the photoelectric detector. The automatic alignment of the photoelectric detector on the movable plate is achieved by using the laser emitter and the laser receiver. The moving distance of the movable plate is real-time monitored by the photoelectric displacement sensor. Therefore, with the cooperation of the laser emitter, the laser receiver and the photoelectric displacement sensor, it is ensured that the two photoelectric detectors always maintain high-precision alignment, avoiding the problem of inaccurate positioning caused by wear or deformation of the reference test square plate. In addition, the integration of the environmental sensing module further improves the stability of the measurement, can real-time monitor and compensate the influence of environmental factors on the measurement result, thus significantly improving the measurement accuracy and reliability of the thickness measuring device.

[0020] 2. For this film paper film thickness measuring device, the spraying component sprays the cleaning liquid evenly through the atomizing nozzle to remove the stains on the film. The drying component blows hot air through the hot air holes and uses the cleaning sponge to wipe the surface of the film, quickly drying the processed area, preventing water stains from remaining and affecting the measurement, reducing the error caused by manual cleaning, and greatly improving the work efficiency, making the whole thickness measuring process more automated and intelligent. Moreover, by removing the dust and other impurities on the surface of the film paper film, the accuracy of the measurement is further guaranteed. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a schematic diagram of the thickness measuring mechanism of the present invention; Figure 3 Schematic diagram of the driving component of the present invention; Figure 4 Schematic diagram of the auxiliary cleaning mechanism of the present invention.

[0022] In the figure: 1 workbench, 2 side plates, 3 mounting seats, 4 back plates, 5 thickness measuring mechanism, 51 photoelectric detector, 52 driving component, 521 linear module, 522 sliding plate, 523 connecting column, 524 positioning column, 525 movable plate, 53 alignment component, 531 laser emitter, 532 laser receiver, 533 photoelectric displacement sensor, 534 support plate, 535 environmental sensing module, 6 auxiliary cleaning mechanism, 61 spraying component, 611 spraying pipe, 612 atomizing nozzle, 613 electric push rod, 614 toothed plate, 615 gear, 616 three-way pipe, 617 water tank, 618 water pump, 62 drying component, 621 hot air pipe, 622 cleaning sponge, 623 hot air holes, 624 connecting pipe, 625 motor, 626 drying oven, 627 deflector, 628 air inlet pipe, 629 fan, 630 heating wire, 631 dust-proof net, 632 air outlet pipe. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 4 , a film thickness measuring device for laminated paper film in this embodiment, includes a workbench 1, two side plates 2, four mounting seats 3 and two back plates 4. The two side plates 2 are vertically fixed on the left and right sides of the upper surface of the workbench 1. The four mounting seats 3 are grouped in pairs, and the two groups of mounting seats 3 are respectively fixed to the upper surface of the workbench 1 and the tops of the two side plates 2. The two back plates 4 are both located at the rear of the workbench 1 and fixed to the ground. A thickness measuring mechanism 5 for measuring the thickness of the laminated paper film is provided on the mounting seat 3, and an auxiliary cleaning mechanism 6 for improving the test accuracy of the thickness measuring mechanism 5 is provided on the back plate 4.

[0025] It should be noted that through a carefully designed structural layout, an efficient and accurate thickness measurement function is achieved. The device includes a workbench 1, two side plates 2, four mounting seats 3, and two back plates 4. The side plates 2 are vertically fixed to the left and right sides of the upper surface of the workbench 1. The mounting seats 3 are grouped in pairs and are respectively fixed to the workbench 1 and the top ends of the side plates 2. The back plate 4 is located at the rear of the workbench 1 and is fixed to the ground. This structural design not only provides stable support but also provides a good foundation for the installation and operation of the thickness measurement mechanism 5 and the auxiliary cleaning mechanism 6. The thickness measurement mechanism 5 is installed on the mounting seats 3 and is used to accurately measure the thickness of the coated paper film. The auxiliary cleaning mechanism 6 is arranged on the back plate 4 and effectively improves the accuracy of the measurement of the thickness measurement mechanism 5 by cleaning the surface of the film. Generally speaking, the device has a reasonable structure and is convenient to operate, and can significantly improve the accuracy and efficiency of the thickness measurement of the coated paper film.

[0026] Among them, the thickness measurement mechanism 5 includes two photoelectric detectors 51 for testing the thickness of the coated paper film, a driving component 52 for driving the two photoelectric detectors 51 to move, and an alignment component 53 for aligning the two photoelectric detectors 51.

[0027] It should be noted that the thickness measurement mechanism 5 in this embodiment realizes high-precision measurement of the thickness of the coated paper film by integrating two photoelectric detectors 51, a driving component 52, and an alignment component 53. The two photoelectric detectors 51 are respectively fixed on the movable plate 525 and can measure the thickness of the film in real time. The driving component 52 precisely controls the movement of the photoelectric detectors 51 through the linear module 521 and the slide plate 522 to ensure the stability of the measurement process. The alignment component 53 uses a laser emitter 531, a laser receiver 532, and a photoelectric displacement sensor 533 to achieve precise alignment of the two photoelectric detectors 51, further improving the accuracy of the measurement. This design not only improves the accuracy and reliability of the thickness measurement but also uses the environmental sensing module 535 to monitor environmental factors in real time and automatically adjusts the measurement parameters to ensure stable measurement results under different environmental conditions.

[0028] The driving component 52 includes two linear modules 521, two slide plates 522, eight connecting columns 523, two positioning columns 524, and two movable plates 525. The two linear modules 521 are respectively fixed to the upper and lower mounting seats 3. The two slide plates 522 are respectively fixed to the moving sliders on the two linear modules 521. The eight connecting columns 523 are set in two groups with four in each group. The two groups of connecting columns 523 are respectively fixed to the two slide plates 522. The closer ends of the two groups of connecting columns 523 are respectively fixed to the two movable plates 525. The two positioning columns 524 are vertically distributed and are vertically fixed between the opposite sides of the two side plates 2, and the two positioning columns 524 are respectively slidably connected to the two movable plates 525.

[0029] It should be noted that in this embodiment, the driving component 52 realizes precise movement control of the photodetector 51 through a delicate mechanical structure design, thereby ensuring the stability and accuracy of the thickness measurement process. Specifically, the driving component 52 is composed of two linear modules 521, two sliding plates 522, eight connecting columns 523, two positioning columns 524, and two movable plates 525. The two linear modules 521 are respectively fixed on the mounting seats 3 on the upper and lower sides, providing a stable support and precise movement guidance for the entire driving component 52. The sliding plates 522 are connected to the moving sliders on the linear modules 521 and can move smoothly along the linear modules 521. The eight connecting columns 523 are divided into two groups, with four in each group, connecting the sliding plates 522 and the movable plates 525 respectively, ensuring the stability and precision of the movable plates 525 during movement. The two positioning columns 524 are vertically fixed between the two side plates 2 and are slidably connected to the movable plates 525, further ensuring the straightness and precision of the movement of the movable plates 525. This structural design enables the photodetector 51 to achieve precise lateral and longitudinal movement during the thickness measurement process, thereby improving the accuracy and reliability of the measurement.

[0030] The two photodetectors 51 are respectively fixed at the centers of the opposite sides of the two movable plates 525. The alignment component 53 includes a laser emitter 531 and a laser receiver 532 that are respectively fixed on the opposite sides of the two movable plates 525 and are located on the left and right sides of the photodetector 51, a photoelectric displacement sensor 533 that is fixed on the upper right surface of the upper movable plate 525 and the lower left surface of the lower movable plate 525, a support plate 534 that is fixed horizontally between the opposite sides of the two back plates 4, and an environmental sensing module 535 that is fixed on the upper surface of the support plate 534.

[0031] It should be noted that the thickness measurement device realizes high-precision alignment of the two photodetectors 51 and real-time monitoring of environmental factors through the carefully designed alignment component 53. Specifically, the laser emitter 531 and the laser receiver 532 are respectively fixed on the left and right sides of the movable plate 525, ensuring the precise alignment of the two photodetectors 51 through laser alignment technology. The photoelectric displacement sensor 533 then monitors the moving distance of the movable plate 525 in real time, further improving the alignment accuracy. In addition, the environmental sensing module 535 integrates light intensity, dust concentration, and humidity sensors, which can monitor and compensate for the influence of environmental factors on the measurement results in real time. This design not only improves the accuracy and stability of the thickness measurement but also enhances the automation level and adaptability of the system, ensuring reliable measurement results under different environmental conditions.

[0032] In this embodiment, the maximum height of the side plate 2 is greater than that of the back plate 4, and the side plate 2 is located on the front side of the back plate 4. Both of the two sliding plates 522 are horizontally arranged and parallel to each other. The four connecting columns 523 in the upper group and the four connecting columns 523 in the lower group are located on the same vertical line. Positioning holes are formed on one side of each of the two movable plates 525, and the movable plates 525 linearly slide on the outside of the positioning columns 524 through the positioning holes.

[0033] It should be noted that the height of the side plate 2 is designed to be higher than that of the back plate 4 and is located on the front side of the back plate 4. This layout optimizes the space utilization and provides guarantees for the stability and operation convenience of the device. At the same time, the two sliding plates 522 are horizontally arranged and parallel to each other, ensuring the smooth operation of the driving assembly. The connecting columns 523 on the upper side and the lower side are respectively located on the same vertical line, further enhancing the symmetry and stability of the structure. In addition, the linear sliding design of the movable plates 525 on the outside of the positioning columns 524 through the positioning holes not only improves the accuracy of the movement of the movable plates 525, but also enhances the stability and reliability of the entire thickness measuring mechanism 5. These design details together improve the overall performance of the device and ensure the stability and accuracy of the measurement process.

[0034] In this embodiment, on the opposite sides of the two side plates 2, there are respectively fixed photoelectric receiving sheets facing the directions of the two photoelectric displacement sensors 533, and the environmental sensing module 535 is integrally provided with a light intensity sensor, a dust concentration sensor, and a humidity sensor.

[0035] It should be noted that on the opposite sides of the two side plates 2, there are respectively fixed photoelectric receiving sheets facing the photoelectric displacement sensors 533. This design ensures that the photoelectric displacement sensors 533 can accurately monitor the moving distance of the movable plates 525, thereby improving the alignment accuracy. At the same time, the environmental sensing module 535 integrates a light intensity sensor, a dust concentration sensor, and a humidity sensor, and can monitor and compensate for the influence of environmental factors on the measurement results in real time. This integrated design not only improves the stability and reliability of the measurement, but also enhances the automation degree and adaptability of the system, ensuring accurate measurement results under different environmental conditions.

[0036] In this embodiment, the auxiliary cleaning mechanism 6 includes a spraying assembly 61 and a drying assembly 62. Both the spraying assembly 61 and the drying assembly 62 are arranged above the workbench 1 and the back plate 4 and are used for cleaning and dust removal of the film paper film. The spraying assembly 61 includes two spraying pipes 611 rotatably connected between opposite sides of the two back plates 4 through bearings. A plurality of atomizing nozzles 612 evenly distributed at equal intervals are fixedly connected to the outer sides of the two spraying pipes 611. An electric push rod 613 is fixed to the left side of the upper surface of the support plate 534. One end of the output shaft of the electric push rod 613 is fixedly connected with a toothed plate 614. Gears 615 meshing with the toothed plate 614 are fixedly connected to the outer sides of the two spraying pipes 611. The right ends of the two spraying pipes 611 penetrate and extend to the right side of the right back plate 4 and are rotatably communicated with a three-way pipe 616 through a shaft.

[0037] It should be noted that in this embodiment, the auxiliary cleaning mechanism 6 realizes efficient cleaning and dust removal of the film paper film through the spraying assembly 61 and the drying assembly 62. The spraying assembly 61 includes two spraying pipes 611 rotatably connected between the back plates 4 through bearings, and a plurality of atomizing nozzles 612 are communicated on the outer sides, which can evenly spray the cleaning liquid, effectively removing the dust and dirt on the surface of the film. The electric push rod 613 drives the toothed plate 614 to engage with the gear 615, realizing the swing of the spraying pipe 611 and further improving the cleaning effect. The right end of the spraying pipe 611 is supplied with water through the three-way pipe 616 to ensure the continuous supply of the cleaning liquid. This design not only improves the cleaning efficiency but also reduces the error caused by manual cleaning, providing a more accurate surface condition for subsequent thickness measurement.

[0038] In this embodiment, the spraying assembly 61 further includes a water tank 617 fixed to the inner bottom wall of the workbench 1. A water pump 618 is fixed to the upper surface of the water tank 617. The water inlet end and the water outlet end of the water pump 618 are respectively communicated with the water tank 617 and the three-way pipe 616 through pipelines.

[0039] In this embodiment, the drying assembly 62 includes two hot air pipes 621 rotatably connected to the fronts of the two back plates 4 through bearings. Two cleaning sponges 622 are fixedly connected to the outer sides of the two hot air pipes 621. A plurality of hot air holes 623 are formed in the outer sides of the hot air pipes 621 and between the two cleaning sponges 622. A connecting pipe 624 is fixed to the front of the left back plate 4. The connecting pipe 624 is rotatably connected to the two hot air pipes 621 through sealed bearings respectively. A motor 625 is fixed to the front of the right back plate 4. The output shaft of the motor 625 is respectively connected to the right ends of the two hot air pipes 621 through belt drives.

[0040] It should be noted that the drying assembly 62 realizes the efficient drying and surface cleaning of the coated paper film through the hot air pipe 621 and the cleaning sponge 622. The hot air pipe 621 is rotatably connected to the front surface of the back plate 4 through a bearing, and the cleaning sponge 622 is fixed on the outside. Hot air holes 623 are provided between the cleaning sponges 622, which can blow out hot air to accelerate the drying of the film surface. The connecting pipe 624 is rotatably connected to the hot air pipe 621 through a sealed bearing to ensure the stable transportation of hot air. The motor 625 drives the hot air pipe 621 to rotate through belt transmission, so that the cleaning sponge 622 wipes the film surface to further remove residual moisture and impurities. This design not only improves the drying efficiency, but also enhances the surface cleaning effect, providing more accurate surface conditions for subsequent thickness measurement and ensuring the reliability of the measurement results.

[0041] In this embodiment, the drying assembly 62 further includes a drying box 626, a plurality of guide plates 627, an air inlet pipe 628, a fan 629, a plurality of heating wires 630, a dust-proof net 631 and an air outlet pipe 632. The drying box 626 is fixed to the inner bottom wall of the workbench 1. A plurality of guide plates 627 are respectively fixed to the top wall and the bottom wall of the inner cavity of the drying box 626. The air inlet pipe 628 and the air outlet pipe 632 are respectively connected and fixed to the left and right sides of the drying box 626, and the other end of the air outlet pipe 632 is connected and fixed to the connecting pipe 624. The dust-proof net 631 and the fan 629 are sequentially fixed in the air inlet pipe 628 from left to right. A plurality of heating wires 630 are respectively fixed to one side of a plurality of guide plates 627.

[0042] It should be noted that the drying assembly 62 realizes the efficient drying of the coated paper film and environmental control by integrating the drying box 626, the guide plates 627, the air inlet pipe 628, the fan 629, the heating wires 630, the dust-proof net 631 and the air outlet pipe 632. The drying box 626 is fixed to the inner bottom wall of the workbench 1, and the internal guide plates 627 enhance the uniformity of air flow. The fan 629 sends air into the drying box 626 through the air inlet pipe 628. After the air is heated by the heating wires 630, it is evenly distributed through the guide plates 627 and blows to the film surface from the air outlet pipe 632 to achieve rapid drying. The dust-proof net 631 effectively filters the incoming air and keeps the drying environment clean. This design not only improves the drying efficiency, but also ensures the stability and reliability of the drying process, provides more accurate surface conditions for subsequent thickness measurement, and at the same time extends the service life of the equipment.

[0043] In this embodiment, the hot air pipe 621 includes two pipe A and one pipe B. The two pipe A are respectively connected and fixed to the left and right sides of the pipe B. The outer diameter of the pipe B is larger than that of the pipe A. The cleaning sponge 622 is fixed to the outside of the pipe B, and the cross-sectional shape of the cleaning sponge 622 is arc-shaped.

[0044] It should be noted that the structural design of the hot air pipe 621 includes two pipes A and one pipe B. Pipe A is respectively connected and fixed to the left and right sides of pipe B, and the outer diameter of pipe B is larger than that of pipe A. This design not only enhances the overall structural stability of the hot air pipe, but also provides a more spacious fixing space for the cleaning sponge 622 through the larger outer diameter of pipe B. The cleaning sponge 622 is fixed on the outer side of pipe B, and its cross-section is arc-shaped. This arc-shaped design enables the cleaning sponge 622 to fit more closely to the surface of the laminated paper film. During the rotation of the hot air pipe 621, the cleaning sponge 622 can more effectively wipe the film surface, removing residual moisture and impurities, thereby further improving the cleaning effect of the film surface, providing more accurate surface conditions for subsequent thickness measurement, and ensuring the reliability of the measurement results.

[0045] In this embodiment, two guide rollers are rotatably connected to the front surface of the workbench 1 and the back surface of the back plate 4 through bearings, and a laminated paper film body is driven between the two guide rollers. The laminated paper film body is located between the upper and lower hot air pipes 621 and the upper and lower spray pipes 611.

[0046] It should be noted that two guide rollers are rotatably connected to the front surface of the workbench 1 and the back surface of the back plate 4 through bearings. This design enables the laminated paper film body to be smoothly driven between the guide rollers. The laminated paper film body is located between the upper and lower hot air pipes 621 and the upper and lower spray pipes 611. This layout ensures that the film can uniformly receive spraying and hot air treatment during the cleaning and drying processes. The setting of the guide rollers not only improves the stability of film transmission, but also ensures the flatness of the film during the cleaning and drying processes, thereby providing more accurate surface conditions for subsequent thickness measurement and ensuring the reliability of the measurement results.

[0047] The electrical components mentioned in the text are all electrically connected to the controller and the power supply. The control mode of the present invention is controlled by the controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of the power supply (provided by the storage battery) also belongs to the common knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be further explained in detail.

[0048] The working principle of the above embodiment is as follows: The film of the coated paper will pass through the guide roller, then pass through two hot air pipes 621 and two spray pipes 611, and then reach between two photoelectric detectors 51. Driven by the guide roller, the film of the coated paper will first reach the spray pipe 611. At this time, the electric push rod 613 starts to work. Its output shaft contracts, and through the meshing of the toothed plate 614 and the gear 615, it drives the spray pipe 611 to swing, so that the atomizing nozzles 612 on the spray pipe 611 swing and evenly spray on the surface of the film of the coated paper. At the same time, the water pump 618 extracts the cleaning liquid from the water tank 617 and transports it to the spray pipe 611 through the three-way pipe 616. The atomizing nozzles 612 evenly spray the cleaning liquid on the surface of the film of the coated paper to remove the surface dust and dirt. After the spray cleaning is completed, the motor 625 starts, and drives the hot air pipe 621 to rotate through belt transmission. At the same time, the fan 629 sends air into the drying box 626 through the air inlet pipe 628. After the air is heated by the heating wire 630, the gas flow path is increased through the guide plate 627 to enhance the heating effect of the gas. After the gas flows through, it blows from the hot air holes 623 to the surface of the film of the coated paper for drying treatment. At the same time, during the rotation of the hot air pipe 621, the cleaning sponge 622 wipes the surface of the film to further remove the residual moisture. When the cleaning of the film of the coated paper is completed, it can avoid the impurities on its upper side from affecting the thickness measurement accuracy; The laser emitter 531 and the laser receiver 532 in the thickness measurement mechanism 5 start to work. The laser emitter 531 emits a laser beam. The linear module 521 controls the slide plate 522 to move in the vertical direction, driving the connecting column 523 and the movable plate 525 to move synchronously, so as to adjust the position of the movable plate 525 accordingly, so that the laser beam accurately irradiates on the laser receiver 532. When the laser receiver 532 receives the laser signal, it indicates that the two photoelectric detectors 51 are aligned. At the same time, in order to improve the alignment effect, the photoelectric displacement sensor 533 monitors the moving distance of the movable plate 525 relative to the side plate 2 in real time and transmits the data to the controller. The controller further finely adjusts the position of the movable plate 525 according to the displacement sensing data to ensure the precise alignment of the two photoelectric detectors 51. After the alignment is completed, the two linear modules 521 in the driving assembly 52 work synchronously, and drive the movable plate 525 to move along the positioning column 524 through the slide plate 522 and the connecting column 523, further moving the two photoelectric detectors 51 horizontally up and down on the film of the coated paper. During the movement of the photoelectric detector 51, the thickness of the film of the coated paper is measured in real time; The environmental sensing module 535 can monitor the environmental factors in real time. When the light intensity changes, the controller automatically adjusts the emission power of the photoelectric detector 51 to ensure the accuracy of the detected distance information; when the dust concentration increases, the controller automatically increases the receiving sensitivity of the photoelectric detector 51 to reduce the influence of dust on the measurement; when the humidity changes, the controller adjusts the emission frequency and receiving threshold of the photoelectric detector 51 to ensure the stability of the measurement.

[0049] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A thickness measuring device for a coated paper film, comprising a workbench (1), two side plates (2), four mounting seats (3) and two back plates (4). The two side plates (2) are vertically fixed to the left and right sides of the upper surface of the workbench (1). The four mounting seats (3) are grouped in pairs, and the two groups of mounting seats (3) are respectively fixed to the upper surface of the workbench (1) and the tops of the two side plates (2). The two back plates (4) are both located at the rear side of the workbench (1) and fixed to the ground. It is characterized in that: A thickness measuring mechanism (5) for measuring the thickness of the coated paper film is provided on the mounting seat (3), and an auxiliary cleaning mechanism (6) for improving the test accuracy of the thickness measuring mechanism (5) is provided on the back plate (4); Among them, the thickness measuring mechanism (5) includes two photoelectric detectors (51) for testing the thickness of the coated paper film, a driving component (52) for driving the two photoelectric detectors (51) to move, and an alignment component (53) for aligning the two photoelectric detectors (51); The driving component (52) includes two linear modules (521), two sliding plates (522), eight connecting columns (523), two positioning columns (524) and two movable plates (525). The two linear modules (521) are respectively fixed to the upper and lower mounting seats (3). The two sliding plates (522) are respectively fixed to the moving sliders on the two linear modules (521). The eight connecting columns (523) are set in two groups with four in each group. The two groups of connecting columns (523) are respectively fixed to the two sliding plates (522). The closer ends of the two groups of connecting columns (523) are respectively fixed to the two movable plates (525). The two positioning columns (524) are vertically distributed and vertically fixed between the opposite sides of the two side plates (2), and the two positioning columns (524) are respectively slidably connected to the two movable plates (525); The two photoelectric detectors (51) are respectively fixed at the centers of the opposite sides of the two movable plates (525). The alignment component (53) includes a laser emitter (531) and a laser receiver (532) respectively fixed on the opposite sides of the two movable plates (525) and located on the left and right sides of the photoelectric detector (51), a photoelectric displacement sensor (533) fixed on the upper right side of the upper movable plate (525) and the lower left side of the lower movable plate (525), a support plate (534) fixed horizontally between the opposite sides of the two back plates (4), and an environmental sensing module (535) fixed on the upper surface of the support plate (534).

2. The thickness measuring device for the coated paper film according to claim 1, wherein: The maximum height of the side plate (2) is greater than the maximum height of the back plate (4), and the side plate (2) is located in front of the back plate (4). The two sliding plates (522) are both horizontally arranged and parallel to each other.

3. The thickness measuring device for the coated paper film according to claim 1, wherein: The four connecting columns (523) in the upper group are respectively located on the same vertical line as the four connecting columns (523) in the lower group. A positioning hole is opened on one side of each of the two movable plates (525). The movable plates (525) linearly slide on the outside of the positioning columns (524) through the positioning holes.

4. A film thickness measuring device for coated paper according to claim 1, characterized in that: On one side of each of the two side plates (2) facing each other, a photoelectric receiving sheet facing the direction of two photoelectric displacement sensors (533) is respectively fixed. The environmental sensing module (535) is integrally provided with a light intensity sensor, a dust concentration sensor, and a humidity sensor.

5. The thickness measuring device for the coated paper film according to claim 1, wherein: The auxiliary cleaning mechanism (6) includes a spraying assembly (61) and a drying assembly (62). The spraying assembly (61) and the drying assembly (62) are both arranged on the workbench (1) and the back plate (4) and are used for cleaning and removing dust from the laminating paper film. The spraying assembly (61) includes two spraying pipes (611) rotatably connected by bearings between the opposite sides of the two back plates (4). A plurality of atomizing nozzles (612) are fixedly connected and distributed at equal intervals on the outer sides of the two spraying pipes (611). An electric push rod (613) is fixed on the left side of the upper surface of the support plate (534). One end of the output shaft of the electric push rod (613) is fixed with a toothed plate (614). Gears (615) meshing with the toothed plate (614) are fixed on the outer sides of the two spraying pipes (611). The right ends of the two spraying pipes (611) penetrate through and extend to the right side of the right back plate (4) and are rotatably connected through a shaft to a tee pipe (616).

6. The thickness measuring device for the coated paper film according to claim 5, wherein: The spraying assembly (61) further includes a water tank (617) fixed on the inner bottom wall of the workbench (1). A water pump (618) is fixed on the upper surface of the water tank (617). The water inlet end and the water outlet end of the water pump (618) are respectively communicated with the water tank (617) and the tee pipe (616) through pipelines.

7. The film thickness measuring device for coated paper according to claim 5, characterized in that: The drying assembly (62) includes two hot air pipes (621) rotatably connected by bearings to the fronts of the two back plates (4). Two cleaning sponges (622) are fixed on the outer sides of the two hot air pipes (612). A plurality of hot air holes (623) are formed on the outer sides of the hot air pipes (612) and between the two cleaning sponges (622). A connecting pipe (624) is fixed on the front of the left back plate (4). The connecting pipe (624) is rotatably connected to the two hot air pipes (612) respectively through sealed bearings. A motor (625) is fixed on the front of the right back plate (4). The output shaft of the motor (625) is connected to the right ends of the two hot air pipes (612) through a belt drive.

8. The thickness measuring device for the coated paper film according to claim 5, characterized in that: The drying assembly (62) further comprises a drying box (626), a plurality of guide plates (627), an air inlet pipe (628), a fan (629), a plurality of heating wires (630), a dust-proof net (631) and an air outlet pipe (632). The drying box (626) is fixed to the inner bottom wall of the workbench (1). The plurality of guide plates (627) are respectively fixed to the top wall and the bottom wall of the inner cavity of the drying box (626). The air inlet pipe (628) and the air outlet pipe (632) are respectively connected and fixed to the left and right sides of the drying box (626), and the other end of the air outlet pipe (632) is connected and fixed to the connecting pipe (624). The dust-proof net (631) and the fan (629) are sequentially fixed from left to right in the air inlet pipe (628). The plurality of heating wires (630) are respectively fixed to one side of the plurality of guide plates (627).

9. The film thickness measuring device for coated paper according to claim 7, wherein: The hot air pipe (612) comprises two pipe A and one pipe B. The two pipe A are respectively connected and fixed to the left and right sides of the pipe B. The outer diameter of the pipe B is larger than that of the pipe A. The cleaning sponge (622) is fixed to the outer side of the pipe B, and the cross-sectional shape of the cleaning sponge (622) is arc-shaped.

10. The thickness measuring device for the coated paper film according to claim 7, wherein: Two guide rollers are rotatably connected to the front surface of the workbench (1) and the back surface of the back plate (4) through bearings, and a laminated paper film body is driven between the two guide rollers. The laminated paper film body is located between the upper and lower hot air pipes (621) and the upper and lower spray pipes (611).

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