A film material laminator

Abstract

The application discloses a film material laminating machine and relates to the technical field of laminating machines.The laminating machine comprises a laminating machine, a unwinding device, a base cloth, a to-be-combined film, a pre-pressing roller, a heating roller and a pressure roller.The unwinding device is fixedly connected to the top wall in the inner cavity of the laminating machine.The base cloth is wound by the unwinding device.The to-be-combined film is flatly conveyed on the laminating machine.The heating roller and the pressure roller are located on the same vertical line, and the base cloth and the to-be-combined film are located between the heating roller and the pressure roller and are pressed and conveyed.The cross-shaped rod body structure composed of a first deflection rod and a second moving wheel can form a stable triangular and grid support system through space geometric constraints, can effectively disperse stress concentration of the hollow monitoring rod under axial and radial loads, and can improve overall bending resistance and torsion resistance.Compared with a single hollow rod structure, the cross-shaped rod body structure can effectively reduce local deformation of the rod body through mutual support.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laminating machines, in particular to a film material laminating machine. BACKGROUND

[0002] In the laminating process of film material (knife-coated coating cloth), the heating roller is a core component, and the stability of the shaft rod directly determines the quality of the laminated product. However, due to the influence of complex working environment, the shaft rod deformation problem occurs frequently: on the one hand, the mechanical stress is concentrated during the pressing process, if the shaft diameter is not reasonably designed, the material strength is insufficient or the supporting structure is defective, the shaft rod is easily bent or twisted and deformed; on the other hand, after the heating roller is heated, thermal stress is generated between the shaft body and the roller body due to the difference in thermal expansion coefficient, and the alternating load of long-term bearing pressure and temperature cycle causes fatigue cracks to breed and develop into permanent deformation.

[0003] The quality problem caused by the shaft rod deformation is rooted in the destruction of the key parameters in the laminating process. When the shaft rod is bent and deformed, the parallelism of the heating roller and the pressure roller is destroyed, the gap between the two ends and the middle of the roller body deviates, and is in the shape of “arch” or “saddle”. In the laminating process, this uneven gap leads to inconsistent material pressure, directly causing the thickness of the finished product to deviate along the width direction, that is, “thick at both ends and thin in the middle” or “thick in the middle and thin at both ends”. At the same time, the shaft rod deformation will cause the shaft to move axially or jump radially when the heating roller rotates, so that the speed of the base cloth and the film is not uniform during conveying, and local slippage or jamming phenomenon occurs, which further leads to the position deviation of the two during laminating, resulting in edge misalignment, pattern misalignment and other defects;

[0004] In addition, the shaft rod deformation will also indirectly cause the laminating bubble and the chrysanthemum core defects. Due to the deformation of the shaft rod, the local pressure of the roller body is insufficient, and the materials cannot be tightly fitted, so that air is difficult to completely discharge, forming bubbles; at the same time, the deformation affects the uniformity of heat conduction of the heating roller, causing local temperature to be too low, and the adhesive cannot be fully melted, further aggravating the generation of bubbles. The chrysanthemum core defect is caused by the radial jumping of the roller body caused by the deformation of the shaft rod, which makes the material bear periodic pressure fluctuation, and is locally stretched or extruded; in addition, the deformation of the shaft rod interferes with the stability of the unwinding and winding tension, causing uneven transverse tension of the material, and finally forming radial wrinkles towards the center.

[0005] At present, traditional detection methods such as manual periodic shutdown sampling, single-point measurement of contact sensors and the like have problems of low detection efficiency, poor real-time performance, and inability to capture dynamic deformation data; while emerging non-contact technologies such as infrared thermal imagers and vibration monitoring can obtain some state information, but it is difficult to accurately locate the small deformation inside the shaft rod, and it is easy to be disturbed by environmental factors, and cannot meet the detection needs of high-precision lamination process for shaft deformation. Therefore, developing a technical scheme that can adapt to the complex working conditions of the laminator and realize real-time online accurate detection of shaft deformation has become a key problem to be solved to improve the quality and production efficiency of laminated products.

[0006] Therefore, the present application provides a film material laminator to solve the above problems. SUMMARY

[0007] Therefore, the present application provides a film material laminator to solve the above problems.

[0008] To achieve the above purpose, the present application provides the following technical scheme: a film material laminator, comprising: a laminator, a unwinding device, a base cloth, a to-be-combined film, a pre-pressing roller, a heating roller, a pressure roller, the unwinding device is fixedly connected to the top wall of the laminator, the base cloth is wound by the unwinding device, the to-be-combined film is flatly conveyed on the laminator, the heating roller and the pressure roller are on the same vertical line, and the base cloth and the to-be-combined film are located between the heating roller and the pressure roller for pressing and conveying, further comprising: a first assembly and a second assembly, the first assembly is arranged on one side of the second assembly, and the first assembly comprises a hollow monitoring rod;

[0009] The first assembly is used for assisting the second assembly to move to the detection area;

[0010] The second assembly is used for detecting the shape of the hollow monitoring rod, and the rotator is used for controlling the shell to rotate.

[0011] Preferably, the first assembly further comprises an annular piece fixedly connected in the hollow monitoring rod at equal intervals, the hollow monitoring rod is fixedly connected to the heating roller axis, and the annular piece is provided with expansion gap strip holes at equal intervals.

[0012] Preferably, the hollow monitoring rod is provided with a main rod, the main rod is fixedly connected with a fixed seat, the fixed seat is provided with a driving shaft, the driving shaft is fixedly connected with a first deflection rod, and the outer end of the first deflection rod is rotatably connected with a first moving wheel.

[0013] Preferably, a fulcrum is fixedly connected to the middle of the first deflection rod, a sliding seat is slidably sleeved on the main rod, a second deflection rod is rotatably connected to the sliding seat, and a second moving wheel is rotatably connected to the outer end of the second deflection rod. The first deflection rod and the second moving wheel rotate from the fulcrum.

[0014] Preferably, the second component includes a rotator fixedly connected to the end face of the main body rod, and a cover component is fixedly connected to the rotator.

[0015] Preferably, an electric telescopic rod is fixedly connected inside the housing, and a frustum is fixedly connected to the outer end of the electric telescopic rod. A strain gauge is fixedly connected to the arc surface of the frustum.

[0016] Preferably, the cover component has symmetrically arranged arc-shaped blocks inside, and a connecting rod is fixedly connected to the arc-shaped blocks. The connecting rod slides through the cover component, and a wall-touching block is fixedly connected to the end of the connecting rod away from the arc-shaped blocks.

[0017] Preferably, a spring is fitted onto the connecting rod, and the spring is fixedly connected to the inner annular wall of the cover component.

[0018] Compared with the prior art, the present invention provides a membrane material laminator, which has the following beneficial effects:

[0019] 1. This invention, through the cross design of the first deflection rod and the second moving wheel, offers the following advantages in terms of mechanical performance, functional integration, and structural design:

[0020] Mechanical performance optimization enhances structural strength and stiffness: The cross-bar structure forms a stable triangular and grid support system through spatial geometric constraints, which can effectively disperse the stress concentration of the hollow monitoring rod under axial and radial loads and improve the overall bending and torsional resistance; compared with a single hollow rod structure, the cross-bar structure can effectively reduce local deformation of the rod through mutual support.

[0021] Dynamic load buffering capacity and improved instability resistance: The cross structure, through the flexible rotational connection characteristics of the fulcrum, can assist the first deflector rod and the second moving wheel in passively absorbing vibration energy, reducing the damage of dynamic loads such as impacts and high-frequency vibrations to the hollow monitoring rod, and improving the reliability of the device in complex working environments; the hollow monitoring rod is prone to buckling instability when subjected to compression or torsion. The cross rod structure composed of the first deflector rod and the second moving wheel reduces the risk of instability by limiting the lateral displacement of the shaft rod, such as Euler instability, and is suitable for working conditions that require long-term maintenance of monitoring accuracy;

[0022] It combines detection and support functions with high space utilization: the crossbar serves as a component for deformation detection and also strengthens the hollow monitoring rod, achieving an integrated design of detection function and mechanical support, reducing the assembly complexity of independent detection elements and support structures in traditional structures; moreover, the crossbar structure is distributed in a three-dimensional cross shape inside the hollow monitoring rod, without occupying additional external space, making it particularly suitable for compact equipment or internal hole detection scenarios, and can achieve the dual goals of high-strength support and high-precision detection in a limited space.

[0023] 2. This invention, through the combined design of the first deflection rod and the second moving wheel, offers the following advantages from the perspectives of manufacturing and usage scenarios:

[0024] Cost reduction and efficiency improvement, and flexible production, reduce inventory models and management costs: Traditional testing devices require the design of multiple fixed specifications for hollow testing rods with different inner diameters, while the adjustable cross structure covers multiple inner diameter sizes through a single modular design, which greatly reduces the types of parts and inventory that enterprises need to keep, and reduces warehousing costs and management complexity.

[0025] Simplify production processes and mold investment: There is no need to develop independent molds or production lines for products of different specifications. Quick adaptation can be achieved through universal parts and adjustable mechanisms. It is especially suitable for small-batch customized production scenarios, shortening the new product development cycle and improving the flexibility of the production line.

[0026] Reduce scrap risk and material waste: When the inner diameter specification of the hollow monitoring rod is iterated or adjusted, the adjustable structure can quickly adapt to the new requirements through parameterized adjustment, avoiding the scrapping of old model products due to specification changes, and reducing material waste and environmental burden;

[0027] Enhanced versatility and convenience, one machine can be used for multiple purposes and cover multiple specifications of testing needs: the same testing device can be adapted to hollow shaft tubes with different inner diameters by adjusting the outward expansion of the cross bar, which is especially suitable for scenarios where multiple models of products are tested on the same line and testing tasks can be quickly switched on site;

[0028] Constant contact pressure and consistent testing reduce errors caused by dimensional deviations: By adjusting the outer expansion, the cross-bar structure can maintain a stable preload or fit with the inner wall of hollow testing rods of different inner diameters, ensuring uniform force during testing, such as consistent strain gauge signal acquisition, and avoiding poor contact of testing signals due to excessive gaps. Traditional fixed-specification structures often cause problems such as interference fit damaging the shaft tube or clearance fit affecting testing accuracy if there are slight dimensional deviations between them and the inner diameter of the shaft tube. The adjustable structure can achieve precise fit by adjusting the outer expansion and using strain gauge feedback, eliminating systematic errors caused by dimensional tolerances and improving the reliability of testing results.

[0029] 3. By arranging the detection device in a symmetrical design, this invention offers the following advantages in terms of mass distribution and rotational stability:

[0030] Mechanical performance optimization, balancing centrifugal force and vibration suppression, eliminating rotational eccentric load, and reducing mechanical stress: The symmetrical structure makes the mass of the detection device evenly distributed on both sides of the axis of the hollow detection rod. The vector sum of the centrifugal force generated during rotation is zero, avoiding the periodic radial load caused by eccentric mass, i.e. "dynamic imbalance". This can significantly reduce the fatigue stress of components such as rod, bearing, and drive mechanism, and extend mechanical life.

[0031] Suppressing vibration and noise, and improving operational stability: When an asymmetrical structure rotates, it is prone to resonance or high-frequency vibration due to uneven centrifugal force, which can lead to displacement, loosening or even failure of the detection device. The symmetrical design of this product controls the vibration amplitude to an extremely low level through mass balance, effectively improving operational stability.

[0032] Symmetrical cancellation of environmental interference: The symmetrical design enables the detection device to have symmetrical cancellation characteristics in response to external interference, such as temperature gradient and electromagnetic interference. For example, when the temperature is uneven on both sides of the hollow detection rod, the thermal deformation of the symmetrical structure cancels each other out, avoiding the shift of the detection reference caused by the difference in thermal expansion and improving the detection accuracy in complex environments.

[0033] 4. The present invention offers the following advantages through the dual functions of the contact block in detection feedback and assisted movement stabilization:

[0034] All-round data acquisition and interference elimination: When the contact block rotates with the hollow monitoring rod, it can sweep the inner wall 360 degrees without dead angles and capture the deformation of the inner wall in real time. Compared with the fixed detection probe, the rotating contact block can avoid missed detection due to the single detection angle.

[0035] Active removal of impurities: The mechanical cleaning action of the rotating contact block can remove impurities such as oil, iron filings, and oxide scale attached to the inner wall of the hollow detection rod, avoiding the distortion of detection signals caused by the accumulation of impurities. For example, in the inspection of industrial pipelines that have not been maintained for a long time, the contact block can clean the deposits on the inner wall in advance, so that the contact block can operate stably in subsequent rotating detection.

[0036] Rotational drag reduction and dynamic lubrication effect: The rotational motion of the contact block transforms traditional sliding friction into rolling friction, significantly reducing the propulsion resistance of the detection device within the hollow monitoring rod; at the same time, the airflow or oil film generated during rotation can form a dynamic lubrication layer on the inner wall, which is especially suitable for long-distance detection and prevents the device from jamming.

[0037] 5. The present invention, through the design of the overall device, can bring the following advantages:

[0038] Achieving precise real-time detection of shaft deformation: In response to the problems of low efficiency of traditional detection methods and difficulty in locating minute deformations with emerging technologies, this auxiliary device adopts multi-dimensional data acquisition technology of strain gauge array. It indirectly provides feedback through the feedback pressure value of the strain gauge and can accurately locate the deformation location and degree, solving the problem that existing technologies cannot comprehensively monitor the dynamic deformation of shafts.

[0039] Significantly improves the quality of laminated finished products and eliminates uneven thickness: Effectively detects changes in roller gap caused by deformation of hollow detection rods, and automatically adjusts the position of pressure rollers or compensates pressure parameters through closed-loop control system to ensure uniform material pressure and keep the thickness deviation of finished products within the process error range, avoiding defects such as thick ends and thin middle.

[0040] Effectively suppresses bubbles and chrysanthemum-like defects, reducing bubble formation: Since the detection device can effectively detect whether the hollow monitoring rod is deformed, it can effectively assist operators in adjusting or replacing the linkage heating system and pressure regulating device for local pressure insufficiency and temperature unevenness caused by the deformation of the hollow monitoring rod. This ensures that the adhesive is fully melted and the materials are tightly bonded, reducing the occurrence rate of bubbles caused by residual air or unmelted adhesive. It also maintains uniform lateral tension of the material, avoiding radial wrinkles caused by pressure fluctuations and uneven tension, preventing chrysanthemum-like defects, and improving the surface smoothness of the product. Attached Figure Description

[0041] Figure 1 This is a structural diagram of the main body of the present invention;

[0042] Figure 2 For the present invention Figure 1 A magnified view of the structure at point A in the middle;

[0043] Figure 3 This is a front view of the laminator in this invention after partial cross-section;

[0044] Figure 4 For the present invention Figure 3 A magnified view of the structure at point B in the middle;

[0045] Figure 5 This is a three-dimensional schematic diagram of the main structure of the first and second components in this invention;

[0046] Figure 6 This is a structural diagram of the first component in this invention;

[0047] Figure 7 This is a front view of the main structure of the first and second components of the hollow monitoring rod of the present invention after being cut apart;

[0048] Figure 8 This is a front view of the main structure of the second component of the present invention;

[0049] Figure 9This is a three-dimensional schematic diagram of the main structure of the first and second components in this invention from another perspective;

[0050] Figure 10 For the present invention Figure 9 A magnified view of the structure at point C;

[0051] Figure 11 This is an external view of the present invention.

[0052] In the picture:

[0053] 1. Laminator; 2. Unwinding device; 3. Base fabric; 4. Film to be laminated; 5. Pre-compression roller; 6. Heating roller; 7. Pressure roller;

[0054] 8. First component; 801. Hollow detection rod; 802. Annular plate; 803. Expansion gap strip hole; 804. Main body rod; 805. Fixed seat; 806. Drive shaft; 807. First deflection rod; 808. First moving wheel; 809. Fulcrum; 810. Sliding seat; 811. Second deflection rod; 812. Second moving wheel;

[0055] 9. Second component; 901. Rotator; 902. Cover component; 903. Electric telescopic rod; 904. Frustum; 905. Strain gauge; 906. Arc block; 907. Connecting rod; 908. Wall contact block; 909. Spring. Detailed Implementation

[0056] 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.

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0058] Example: Please refer to Figures 1 to 7 , Figure 9 , Figure 11 As shown:

[0059] To address the problems mentioned in the technical solutions, this application provides a membrane material laminator, comprising: a laminator 1, an unwinding device 2, a base fabric 3, a film to be laminated 4, a pre-pressing roller 5, a heating roller 6, and a pressure roller 7. The unwinding device 2 is fixedly connected to the top wall of the inner cavity of the laminator 1. The base fabric 3 is wound up by the unwinding device 2. The film to be laminated 4 is laid flat and conveyed on the laminator 1. The heating roller 6 and the pressure roller 7 are on the same vertical line, and the base fabric 3 and the film to be laminated 4 are pressed and conveyed between the heating roller 6 and the pressure roller 7. The laminator also includes: a first component 8 and a second component 9. The first component 8 is disposed on one side of the second component 9. The first component 8 includes a hollow monitoring rod 801.

[0060] The first component 8 is used to assist the second component 9 in moving to the area to be detected. The first component 8 also includes an annular piece 802 that is fixedly connected at equal intervals inside the hollow monitoring rod 801. The hollow monitoring rod 801 is fixedly connected to the axis of the heating roller 6. An expansion gap strip hole 803 is equidistantly opened on the annular piece 802. A main body rod 804 is provided inside the hollow monitoring rod 801. A fixed seat 805 is fixedly connected to the main body rod 804. A drive shaft 806 is provided on the fixed seat 805. A first deflection rod 807 is fixedly connected to the drive shaft 806. A first moving wheel 808 is rotatably connected to the outer end of the first deflection rod 807. A fulcrum 809 is fixedly connected to the middle of the first deflection rod 807. A sliding seat 810 is slidably sleeved on the main body rod 804. A second deflection rod 811 is rotatably connected to the sliding seat 810. A second moving wheel 812 is rotatably connected to the outer end of the second deflection rod 811. The first deflection rod 807 and the second moving wheel 812 are rotated by the fulcrum 809.

[0061] in:

[0062] The laminator 1 is equipped with a tension roller for pulling the base fabric 3 and the composite film 4, as well as a cooling roller after the heating roller 6 and pressure roller 7 processes.

[0063] The base fabric 3 and the film to be laminated 4 first pass through the pre-pressing roller 5, which has a lower temperature than the heating roller 6, so as to slightly soften the coating surface of the base fabric 3 and initially remove the air between the two layers, thereby improving the efficiency of subsequent lamination and bonding.

[0064] The heating roller 6, also known as the active roller, is chrome-plated or polished to conduct heat evenly, thereby enabling the bottom surface of the film to be laminated 4 to be thermally fused with the coating of the base fabric 3; the pressure roller 7, also known as the driven roller, is usually a silicone rubber roller, whose elastic deformation ensures uniform pressure distribution.

[0065] The first component 8 is used to assist the second component 9 in moving to the area to be detected.

[0066] In addition to providing strength support for the hollow monitoring rod 801, the annular plate 802 also helps the hollow monitoring rod 801 to bend due to thermal stress during heat conduction, resulting in an arc or saddle shape.

[0067] The sliding seat 810 is slidably adapted to the main body rod 804.

[0068] A further embodiment: Please refer to Figure 2 , Figure 5 , Figures 7 to 10 As shown:

[0069] The second component 9 is used for morphological detection of the hollow detection rod 801; the rotator 901 is used to control the rotation of the cover 902. The second component 9 includes a rotator 901 fixedly connected to the end face of the main rod 804, a cover 902 fixedly connected to the rotator 901, an electric telescopic rod 903 fixedly connected inside the cover 902, a frustum 904 fixedly connected to the outer end of the electric telescopic rod 903, a strain gauge 905 fixedly connected to the arc surface of the frustum 904, an arc block 906 symmetrically arranged inside the cover 902, a connecting rod 907 fixedly connected to the arc block 906, the connecting rod 907 slidingly passing through the cover 902, a wall-touching block 908 fixedly connected to the end of the connecting rod 907 away from the arc block 906, and a spring 909 sleeved on the connecting rod 907, the spring 909 fixedly connected to the inner wall of the cover 902.

[0070] in:

[0071] The second component 9 is used to detect the shape of the hollow detection rod 801; the rotator 901 is used to control the rotation of the cover component 902.

[0072] When the curved block 906 is pushed by the inclined surface of the truncated cone 904, the strain gauge 905 will be subjected to a certain pressure under this pushing state, and this pressure will be fed back to the electrically connected main controller. In actual use, when the truncated cone 904 indirectly causes the first moving wheel 808 and the second moving wheel 812 to stably contact the inner wall of the hollow monitoring rod 801 through the curved block 906, after the value fed back is a specific value required by the process, the whole device is activated, causing the contact block 908 to move on the inner wall of the hollow monitoring rod 801. If the hollow monitoring rod 801 does not bend or deform, its inner wall diameter should be a definite fixed value. If the stress value fed back by the strain gauge 905 changes during the movement of the contact block 908, it indicates that the hollow monitoring rod 801 is in a state of bending deformation.

[0073] The arc block 906 is used in conjunction with the frustum 904.

[0074] It should be noted that this shaft deformation test can be applied to various types of rollers; the following description only focuses on the hollow test rod 801 of the heating roller 6.

[0075] The working principle of all the content in the above embodiments is as follows:

[0076] The following is the working process of the first component 8:

[0077] Before lamination, the hollow detection rod 801 needs to be deformed. Only after the deformation of the rod is tested can the lamination device be used. Under the conveying of the base fabric 3 by the unwinding device 2 and the traction of the film to be laminated 4 by the traction roller, the base fabric 3 and the film to be laminated 4 are pre-pressed by the pre-pressing roller 5. The overlapping film is then heated and laminated by the heating roller 6 and the pressure roller 7, and then conveyed. Finally, it is cooled by the cooling roller in the laminator 1 to obtain the finished product.

[0078] During the deformation test of the hollow testing rod 801, the drive shaft 806 on the fixed base 805 is first activated. At this time, the first deflection rod 807 will rotate under the action of the drive shaft 806. (See attached diagram.) Figure 6 As the first deflection rod 807 rotates, the second deflection rod 811, which is rotatably connected to the first deflection rod 807 via the fulcrum 809, will move during the deflection of the first deflection rod 807. At this time, the second deflection rod 811 will move along the sliding seat 810, causing it to slide on the main body rod 804. Furthermore, as the first deflection rod 807 and the second moving wheel 812 move, the first moving wheel 808 and the second moving wheel 812 will gradually approach and abut against the inner wall of the laminator 1, thereby achieving the adaptive stability of the first component 8 to the inner wall of the laminator 1, waiting for the second component 9 to be driven to detect the inner wall of the laminator 1.

[0079] Furthermore, through the cross design of the first deflection rod 807 and the second moving wheel 812, the cross rod structure composed of the first deflection rod 807 and the second moving wheel 812 forms a stable triangular and grid support system through spatial geometric constraints. This can effectively disperse the stress concentration of the hollow monitoring rod 801 under axial and radial loads, and improve the overall bending and torsional resistance. Compared with a single hollow rod structure, the cross rod structure can effectively reduce local deformation of the rod through mutual support.

[0080] Meanwhile, the cross structure, through the flexible rotational connection characteristics of the fulcrum 809, can assist the first deflection rod 807 and the second moving wheel 812 in passively absorbing vibration energy, reducing dynamic loads such as impacts and high-frequency vibrations from damaging the hollow monitoring rod 801, and improving the reliability of the device in complex working environments. The hollow monitoring rod 801 is prone to buckling instability when subjected to compression or torsion. The cross rod structure composed of the first deflection rod 807 and the second moving wheel 812 reduces the risk of instability by limiting the lateral displacement of the shaft and rod, such as Euler instability, and is suitable for working conditions that require long-term maintenance of monitoring accuracy.

[0081] Furthermore, the crossbars, serving as components for deformation detection, also serve as structural reinforcement for the hollow monitoring rod 801, achieving an integrated design of detection function and mechanical support, reducing the assembly complexity of independent detection elements and support structures in traditional structures; moreover, the crossbar structure is distributed in a three-dimensional cross shape inside the hollow monitoring rod 801, requiring no additional external space, making it particularly suitable for compact equipment or internal hole detection scenarios, achieving the dual goals of high-strength support and high-precision detection within a limited space;

[0082] Furthermore, through the cross design of the first deflection rod 807 and the second moving wheel 812, compared with the traditional detection device which requires the design of multiple fixed specifications for hollow detection rods 801 with different inner diameters, the adjustable cross structure covers multiple inner diameter sizes through a single modular design, which greatly reduces the types of parts and inventory that enterprises need to keep, and reduces warehousing costs and management complexity.

[0083] Furthermore, there is no need to develop independent molds or production lines for products of different specifications. Rapid adaptation can be achieved through universal parts and adjustable mechanisms, which is especially suitable for small-batch customized production scenarios, shortening the new product development cycle and improving the flexibility of the production line.

[0084] Meanwhile, when the inner diameter specification of the hollow testing rod 801 is iterated or adjusted, the adjustable structure can be quickly adapted to the new requirements through parameterized adjustment, avoiding the scrapping of old model products due to specification changes, and reducing material waste and environmental burden.

[0085] Furthermore, by adjusting the outward expansion, the cross-bar structure can maintain a stable preload or fit with the inner wall of the hollow detection rod 801 with different inner diameters, ensuring uniform force during the detection process, such as the consistency of signal acquisition by the strain gauge 905, and avoiding poor contact of the detection signal due to excessive gap. If there is a slight dimensional deviation between the traditional fixed specification structure and the inner diameter of the shaft tube, it often causes problems such as interference fit damaging the shaft tube or clearance fit affecting the detection accuracy. The adjustable structure can achieve precise adaptation by adjusting the outward expansion and cooperating with the feedback of the strain gauge 905, eliminating systematic errors caused by dimensional tolerances and improving the reliability of the detection results.

[0086] Furthermore, by designing the detection device in a symmetrical manner, the following benefits can be achieved in terms of mass distribution and rotational stability: the symmetrical structure ensures that the mass of the detection device is evenly distributed on both sides of the axis of the hollow detection rod 801, and the vector sum of the centrifugal forces generated during rotation is zero, avoiding the periodic radial load caused by eccentric mass, i.e., "dynamic imbalance". This can significantly reduce the fatigue stress of components such as the rod, bearings, and drive mechanism, and extend the mechanical life.

[0087] When an asymmetrical structure rotates, it is prone to resonance or high-frequency vibration due to uneven centrifugal force, which can lead to displacement, loosening, or even malfunction of the detection device. The symmetrical design of this device controls the vibration amplitude to an extremely low level through mass balance, effectively improving operational stability.

[0088] The symmetrical design enables the detection device to have a symmetrical cancellation characteristic in response to external interference, such as temperature gradients and electromagnetic interference. For example, when the temperature is uneven on both sides of the hollow detection rod, the thermal deformation of the symmetrical structure cancels each other out, avoiding the shift of the detection reference caused by the difference in thermal expansion and improving the detection accuracy in complex environments.

[0089] Please refer to the above work process. Figures 1 to 7 , Figure 9 , Figure 11 .

[0090] The following is the working process of the second component 9:

[0091] When the second component 9 is working, firstly, the electric telescopic rod 903 pushes the arc block 906 through the frustum 904, so that the arc block 906 causes the wall contact block 908 to make adaptive contact with the inner wall of the hollow detection rod 801 through the connecting rod 907.

[0092] Furthermore, it is known that when the curved block 906 is pushed by the inclined surface of the frustum 904, the strain gauge 905 will be subjected to a certain pressure under this pushing state, and this pressure will be fed back to the electrically connected main controller. In actual use, when the frustum 904 indirectly causes the first moving wheel 808 and the second moving wheel 812 to stably contact the inner wall of the hollow monitoring rod 801 through the curved block 906, after the value fed back by the frustum 904 is a specific value required by the process, the entire device is activated, causing the contact block 908 to move on the inner wall of the hollow monitoring rod 801. If the hollow monitoring rod 801 does not bend or deform, its inner wall diameter should be a definite fixed value. If the stress value fed back by the strain gauge 905 changes during the movement of the contact block 908, it indicates that the hollow monitoring rod 801 is in a state of bending deformation.

[0093] Therefore, the contact block 908, which is attached to the inner wall of the hollow monitoring rod 801 via the connecting rod 907 on the housing 902, will rotate the inner wall of the hollow monitoring rod 801 by moving under the drive of the rotator 901. During this process, the contact block 908 will apply a certain pressure to the strain gauge 905 on the frustum 904 via the connecting rod 907. If the contact block 908 indirectly changes the pressure applied to the strain gauge 905 by the arc block 906 during the rotation and movement, the change in the value can be fed back by the strain gauge 905, indicating that the hollow monitoring rod 801 is deformed.

[0094] Furthermore, when the hollow monitoring rod 801 rotates, the wall-mounted block 908 can sweep the inner wall 360 degrees without dead angles, effectively collecting data from all directions and eliminating interference; it can capture the deformation of the inner wall in real time. Compared with the fixed detection probe, the rotating wall-mounted block 908 can avoid missed detections caused by a single detection angle.

[0095] Meanwhile, the mechanical cleaning action of the rotating contact block 908 can remove impurities such as oil stains, iron filings, and oxide scale attached to the inner wall of the hollow monitoring rod 801, avoiding the distortion of the detection signal caused by the accumulation of impurities. For example, in the detection of industrial pipelines that have not been maintained for a long time, the contact block 908 can clean the deposits on the inner wall in advance, so that the contact block 908 can operate stably in subsequent rotating detection.

[0096] Furthermore, the rotational motion of the contact block 908 transforms traditional sliding friction into rolling friction, significantly reducing the propulsion resistance of the detection device within the hollow monitoring rod 801. Simultaneously, the airflow or oil film generated during rotation can form a dynamic lubrication layer on the inner wall, which is particularly suitable for long-distance detection and prevents the device from jamming.

[0097] Please refer to the above work process. Figure 2 , Figure 5 , Figures 7 to 10 .

[0098] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0099] 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 membrane material laminator, comprising: The laminate (1), unwinding device (2), base fabric (3), film to be laminated (4), pre-pressing roller (5), heating roller (6), and pressure roller (7) are provided. The unwinding device (2) is fixedly connected to the top wall of the inner cavity of the laminate (1). The base fabric (3) is wound up by the unwinding device (2). The film to be laminated (4) is laid flat and conveyed on the laminate (1). The heating roller (6) and the pressure roller (7) are on the same vertical line. The base fabric (3) and the film to be laminated (4) are pressed and conveyed between the heating roller (6) and the pressure roller (7). The laminate is characterized by further including: a first component (8) and a second component (9). The first component (8) is disposed on one side of the second component (9). The first component (8) includes a hollow detection rod (801). The first component (8) is used to assist the second component (9) in moving to the area to be detected; The second component (9) is used for morphological detection of the hollow detection rod (801); the rotator (901) is used to control the rotation of the cover (902); The first component (8) also includes an annular piece (802) that is fixedly connected at equal intervals inside the hollow detection rod (801). The hollow detection rod (801) is fixedly connected to the axis of the heating roller (6). An expansion gap strip hole (803) is provided at equal intervals on the annular piece (802). The hollow detection rod (801) is provided with a main rod (804), a fixed seat (805) is fixedly connected to the main rod (804), a drive shaft (806) is provided on the fixed seat (805), a first deflection rod (807) is fixedly connected to the drive shaft (806), and a first moving wheel (808) is rotatably connected to the outer end of the first deflection rod (807). The first deflection rod (807) is fixedly connected to a fulcrum (809) in the middle. A sliding seat (810) is slidably sleeved on the main body rod (804). A second deflection rod (811) is rotatably connected to the sliding seat (810). A second moving wheel (812) is rotatably connected to the outer end of the second deflection rod (811). The first deflection rod (807) and the second moving wheel (812) are rotated by the fulcrum (809).

2. The membrane material laminator according to claim 1, characterized in that: The second component (9) includes a rotator (901) fixedly connected to the end face of the main body rod (804), and a cover (902) is fixedly connected to the rotator (901).

3. A membrane material laminator according to claim 2, characterized in that: An electric telescopic rod (903) is fixedly connected inside the cover (902), and a frustum (904) is fixedly connected to the outer end of the electric telescopic rod (903). A strain gauge (905) is fixedly connected to the arc surface of the frustum (904).

4. A membrane material laminator according to claim 2, characterized in that: The cover (902) is symmetrically provided with arc-shaped blocks (906), and a connecting rod (907) is fixedly connected to the arc-shaped block (906). The connecting rod (907) slides through the cover (902), and a wall-touching block (908) is fixedly connected to the end of the connecting rod (907) away from the arc-shaped block (906).

5. A membrane material laminator according to claim 4, characterized in that: A spring (909) is sleeved on the connecting rod (907), and the spring (909) is fixedly connected to the inner wall of the cover (902).

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