Optical thin film transverse stretching device

Abstract

The invention discloses an optical thin film transverse stretching device, and relates to the technical field of optical thin film transverse stretching, the optical thin film transverse stretching device comprises a device main body and a thin film, a position adjusting assembly is arranged in the device main body, and the position adjusting assembly comprises a plurality of first threaded rods rotationally installed on the inner wall of the device main body; and two second threaded rods are rotationally installed on the inner wall of the device body, sliding plates are installed on the two second threaded rods and the first threaded rod in a threaded mode, and two connecting rods are fixedly installed on each sliding plate in a penetrating mode. The device has the advantages that the fitting degree of the multiple damping rollers and the upper side and the lower side of the film can be adaptively adjusted through the position adjusting assembly according to the transverse thickness of the film, and meanwhile the friction damping force of the corresponding damping rollers can be adaptively adjusted through the resistance adjusting assembly according to the shaking amplitude of different transverse positions of the film; therefore, the shaking restraining effect of the multiple damping rollers on the thin film can be improved, and the transverse stretching effect of the device on the thin film is improved.

Description

Technical Field

[0001] This invention relates to the field of optical thin film lateral stretching technology, and more particularly to an optical thin film lateral stretching device. Background Technology

[0002] In the production of optical thin films, in order to improve the mechanical properties (such as increasing strength and flatness) and optical properties (such as reducing birefringence and increasing light transmittance) of the film, and to meet its subsequent use requirements, existing transverse stretching devices are usually used to perform transverse stretching. However, during the transverse stretching process, optical thin films may vibrate due to factors such as equipment vibration and uneven transverse tension. Therefore, in order to improve the transverse stretching effect of the device on optical thin films, friction damping rollers are usually added to the transverse stretching device. The friction damping force of the friction damping rollers on the film can suppress the vibration amplitude of the film and improve the stability of the tension and the stretching effect when the film is transversely stretched. However, most existing friction damping rollers are integrated. If the film has uneven lateral thickness and uneven lateral vibration amplitude due to factors such as uneven tension during film formation or lateral stretching, the existing integrated friction damping rollers cannot accurately adjust the damping force for different lateral positions of the optical film. Therefore, we propose an optical film lateral stretching device to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art by providing an optical thin film lateral stretching device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An optical thin film lateral stretching device includes a device body and a thin film, wherein an adjustment component is disposed inside the device body; The adjustment assembly includes multiple threaded rods rotatably mounted on the inner wall of the device body, two threaded rods rotatably mounted on the inner wall of the device body, and sliding plates threaded onto both threaded rods and threaded rods rotatably mounted on each of the two threaded rods and threaded rods rotatably mounted on each of the sliding plates. A support cover is fixedly mounted between each of the two corresponding connecting rods. A damping roller is rotatably mounted inside each of the support covers. An adjustment mechanism is installed inside the device body for adaptively adjusting the height of the damping rollers. A friction adjustment assembly is provided between the damping rollers for adaptively adjusting the friction damping force of the damping rollers. The resistance adjustment assembly includes rotating rods that are rotatably mounted on the support cover, and each rotating rod is fixedly connected to a corresponding damping roller. Each rotating rod is rotatably mounted with an inertia flywheel. A drive mechanism is installed between the inertia flywheel and the rotating rod. Each support cover has a rod body that is fixedly mounted on it, and a pressing mechanism is installed between the rod bodies.

[0005] Compared with existing technologies, the advantages of this invention are: 1: Before the film is stretched laterally, the present invention uses an adjustment component to adaptively adjust the distance between the upper and lower damping rollers according to the film's lateral thickness. This helps to improve the damping effect of multiple damping rollers on the film and improves the device's lateral stretching effect on the film.

[0006] 2. In the process of transverse stretching of the film, if the film shakes more intensely, the friction damping force of the damping roller on the film can be adjusted in a timely and adaptive manner through the resistance adjustment component. This helps to further improve the damping effect of the damping roller on the film. At the same time, through the independent resistance adjustment setting inside multiple damping rollers, the friction damping force of the corresponding damping roller can be precisely adjusted according to the shaking amplitude at different transverse positions of the film. This helps to further improve the damping effect of multiple damping rollers working together on the film, and further improves the transverse stretching effect of the device on the film. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of an optical thin film transverse stretching device proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the internal components of the main body of the device; Figure 3 for Figure 2 A schematic diagram of the structure of the mid-position adjustment component; Figure 4 for Figure 3 An exploded view of the central rotating shaft and its constituent components; Figure 5 for Figure 3 A schematic diagram of the components on the central support cover; Figure 6 for Figure 5 Cross-sectional schematic diagram of the central support cover and damping roller; Figure 7 for Figure 6 An exploded view of the intermediate damping roller and its internal components; Figure 8 for Figure 6 A schematic diagram of the internal components of the intermediate damping roller; Figure 9 for Figure 8 A schematic diagram of the drive mechanism; Figure 10 for Figure 9 A frontal view diagram; Figure 11 for Figure 9 Cross-sectional view of the central pivot and inertia flywheel; Figure 12 for Figure 11 Cross-sectional view of the drive component; Figure 13 for Figure 8 Schematic diagram of the extrusion mechanism; Figure 14 for Figure 13 A three-dimensional schematic diagram; Figure 15 for Figure 14 A front view of the push-press component.

[0008] In the diagram: 1. Main body of the device; 2. Thin film; 3. Adjustment assembly; 31. Micro motor; 32. Rotating shaft; 33. Threaded rod one; 34. Threaded rod two; 35. Rotating gear; 36. Sliding plate; 37. Connecting rod; 38. One-way bearing; 39. Reciprocating screw one; 310. Reciprocating screw two; 311. Slider; 312. Rack; 4. Support cover; 5. Damping roller; 6. Adjustable resistance assembly; 61. Rotating rod; 62. Inertia flywheel; 63. Drive plate; 64. Arc-shaped opening; 65. Round rod; 66. Threaded groove; 67. Drive component; 68. Connecting plate; 69. Drive ball; 610. Push plate; 611. Ball bearing; 612. Conical column one; 613. Conical column two; 614. Rod body; 615. Fixing plate; 616. Support rod; 617. Ring; 618. Spring telescopic rod; 619. Extrusion rod; 620. Compression spring; 621. Friction plate. Detailed Implementation

[0009] 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.

[0010] Reference Figures 1-15 An optical thin film lateral stretching device includes a device body 1 and a thin film 2, and an adjustment component 3 is provided inside the device body 1.

[0011] Existing transverse stretching devices are prone to causing vibrations in optical films during the transverse stretching process. For example, if the optical film is heated with hot air during stretching and the hot air velocity is uneven (such as in hot air circulation systems with velocity errors), the optical film will be heated unevenly, resulting in inconsistent transverse contraction and extension, which will lead to vibrations. Similarly, changes in production speed (such as speeding up or slowing down the production line) or unstable tension control during winding will be transmitted to the transversely stretched optical film, causing tension fluctuations and also resulting in vibrations. Normally, when an optical film is stretched transversely, its tension is in dynamic equilibrium. However, vibrations disrupt this equilibrium, causing the tension distribution and magnitude to deviate from the set values, affecting the uniformity of transverse stretching, leading to inconsistent film thickness and performance, and ultimately reducing the final stretching effect.

[0012] Therefore, a friction damping roller is usually added inside the current transverse stretching device. When the optical film is stretched laterally, the friction damping roller can improve the stability of the stretched optical film through its friction damping force on the optical film. At the same time, the friction damping force of the friction damping roller on the moving optical film can also effectively "consume" the vibration of the optical film, reduce its vibration amplitude, and improve the transverse stretching effect of the device on the optical film.

[0013] Reference Figures 1-5 The adjustment component 3 includes multiple threaded rods 33 rotatably mounted on the inner wall of the device body 1, two threaded rods 34 rotatably mounted on the inner wall of the device body 1, and sliding plates 36 threadedly mounted on the two threaded rods 34 and the multiple threaded rods 33. Two connecting rods 37 are fixedly mounted through and on each sliding plate 36. A support cover 4 is fixedly mounted between the corresponding two connecting rods 37. A damping roller 5 is rotatably mounted inside each support cover 4. An adjustment mechanism is installed inside the device body 1 for adaptively adjusting the height of the damping roller 5. A friction adjustment component 6 is provided between the damping rollers 5 for adaptively adjusting the friction damping force of the damping roller 5.

[0014] The adjustment mechanism includes two micro motors 31 fixedly installed on the inner wall of the main body 1. The drive ends of the two micro motors 31 are fixedly installed with rotating shafts 32. Two reciprocating lead screws 39 are installed on the two rotating shafts 32 through two one-way bearings 38. Reciprocating lead screws 310 are fixedly installed on the two rotating shafts 32. Slider blocks 311 are installed on the two reciprocating lead screws 310 and the multiple reciprocating lead screws 39 through ball nuts. The sliders 311, threaded rods 33 and 34 are connected by a transmission component.

[0015] The transmission components include racks 312 fixedly mounted on sliders 311, and rotating gears 35 fixedly mounted on two threaded rods 34 and multiple threaded rods 33, with each rotating gear 35 engaging with a corresponding rack 312.

[0016] The thickness of the film 2 to be stretched (i.e., the optical film) may vary due to different factors such as raw materials, target material composition segregation, and production and processing technology.

[0017] Therefore, before the main body 1 of the device stretches the film 2 to be processed laterally, it can first start two micro motors 31 in the forward direction according to the lateral thickness of the film 2 before stretching. During the operation of the two micro motors 31 driving the corresponding rotating shafts 32 to rotate clockwise, the corresponding two reciprocating lead screws 39 and reciprocating lead screws 310 can be driven to rotate together through the corresponding one-way bearings 38. During the clockwise rotation of the multiple reciprocating lead screws 39 and the two reciprocating lead screws 310 under force, through the cooperation with the corresponding ball nuts, the corresponding rack 312 can be driven to move to one side (e.g., Figure 3 (As shown in the direction), for example, when multiple racks 312 are forced to move to the right, the driving force applied by the multiple racks 312 to the corresponding rotating gears 35 can cause the corresponding threaded rods 33 and 34 to rotate clockwise, driving the upper and lower opposite sliding plates 36, multiple connecting rods 37, two support covers 4, and two damping rollers 5 to move closer to each other. Conversely, when the racks 312 are forced to move to the left, the upper and lower opposite support covers 4 and damping rollers 5 will be forced to move away from each other (as shown in the direction). Figure 2 (as shown in the direction), this allows for adaptive adjustment of the spacing between the two damping rollers 5 according to the transverse thickness of the film 2 to be stretched. This helps improve the fit between the multiple damping rollers 5 and the upper and lower sides of the film 2, and enhances the damping effect of the multiple damping rollers 5 on the film 2. In other words, it helps improve the tension stability of the film 2 when it is stretched laterally, and reduces the impact of dynamic fluctuations on the film 2. This helps improve the stretching effect of the film 2 (the shaking of the film 2 is essentially an external manifestation of the instantaneous fluctuation of the tension of the film 2, such as the transverse swaying of the film 2 caused by a sudden change in the winding tension. Therefore, by improving the fit between the damping rollers 5 and the film 2, the instantaneous tension fluctuations caused by factors such as sudden speed changes and equipment vibrations can be effectively suppressed, and the tension stability of the film 2 when it is stretched can be improved).

[0018] Meanwhile, to further improve the adhesion between the damping rollers 5 and the upper and lower sides of the film 2 during the stretching process, a fiber optic spectrometer can be added inside the main body 1 of the device. Because the lateral thickness of the film 2 gradually decreases during the lateral stretching process, the adhesion between the multiple damping rollers 5 and the upper and lower sides of the film 2 also gradually decreases, and the damping effect of the damping rollers 5 on the film 2 also decreases accordingly. Therefore, when the film 2 is stretched laterally, the fiber optic spectrometer is activated. During operation, based on white light interferometry, this device can analyze the interference fringes formed by the reflection of light at the film-substrate interface to achieve the analysis of the film's thickness. The thickness of film 2 is monitored (this equipment is a conventional existing device, and its specific working principle will not be further explained here). When the fiber optic spectrometer detects that the lateral thickness of film 2 is gradually decreasing, the fiber optic spectrometer will send a signal to the two micro motors 31 to start the two micro motors 31. At this time, the operation of the two micro motors 31, in cooperation with the adjustment mechanism, drives the upper and lower damping rollers 5 to move closer to each other. This ensures the fit between the multiple damping rollers 5 and film 2, further improving the damping rollers 5's effect on suppressing the vibration of film 2, that is, further improving the stretching effect of the device on film 2.

[0019] Furthermore, the film 2 to be laterally stretched may exhibit uneven thickness between the middle and the sides due to factors such as production process and raw materials. For example, ordinary optical films (such as window films and protective films) allow for a lateral thickness deviation within ±5% (but high-end products, such as OLED substrates and photoresist masks, require a deviation of <±1%). During the lateral stretching process, factors such as tension fluctuations, uneven temperature field (temperature on both sides is higher than in the middle), and uneven internal stress of the material (molecular orientation is more concentrated in the edge region) can also cause the film 2 to exhibit a phenomenon of "thick in the middle and thin on both sides" or "thick at the edges and thin in the middle". Most existing friction damping rollers are integrated designs. When the lateral thickness of the film 2 is uneven between the middle and the sides, and the film 2 exhibits irregular wave-like vibrations in the lateral direction during stretching, the damping effect of the existing friction damping rollers is easily reduced, thus reducing the final stretching effect of the film 2.

[0020] Therefore, before the film 2 is stretched laterally, the thickness of the film 2 can be detected by a fiber optic spectrometer. If the thickness of the film 2 is found to be different in the middle and on both sides, the two micro motors 31 are started in the forward direction first. After the distance between the two damping rollers 5 is adjusted according to the thickness on both sides of the film 2, the two micro motors 31 are started in the reverse direction. When the two micro motors 31 drive the corresponding rotating shaft 32 to rotate counterclockwise, they will only drive the corresponding reciprocating screw 310 to rotate (that is, at this time, the multiple one-way bearings 38 are in a rotatable state and will not rotate). At this time, the rotation of the two reciprocating screws 310 can be used to adjust the distance between the two damping rollers 5 in the middle according to the thickness of the middle of the film 2. This can help to further improve the adhesion between the multiple damping rollers 5 and the upper and lower sides of the film 2, and further improve the damping effect of the multiple damping rollers 5 on the film 2.

[0021] When the film 2 is stretched laterally, if the fiber optic spectrometer detects a difference in thickness between the middle and the sides of the film 2 in the lateral direction, the adhesion between the multiple damping rollers 5 and the film 2 can be further improved by starting the two micro motors 31 in both directions.

[0022] Reference Figures 3-14 The resistance adjustment assembly 6 includes rotating rods 61 that are rotatably mounted on the support cover 4, and each rotating rod 61 is fixedly connected to a corresponding damping roller 5. Each rotating rod 61 is rotatably mounted with an inertia flywheel 62. A drive mechanism is installed between the inertia flywheel 62 and the rotating rod 61. Each support cover 4 is fixedly mounted with a rod body 614. A pressing mechanism is installed between the rod bodies 614.

[0023] The drive mechanism includes two drive plates 63 that are fixedly mounted on the inertia flywheel 62. A round rod 65 is rotatably mounted on each of the rotating rods 61. A threaded groove 66 is opened on each of the round rods 65. Two drive balls 69 are slidably mounted on each of the threaded grooves 66. A drive component 67 is fixedly mounted between the two corresponding drive balls 69. The drive component 67 cooperates with the two corresponding drive plates 63. Two arc-shaped openings 64 are opened on each of the round rods 65. A pushing component is installed between the drive components 67.

[0024] The pushing component includes two connecting plates 68 that are fixedly mounted on the driving component 67. A push plate 610 is fixedly mounted between the two connecting plates 68. A tapered column 612 is fixedly mounted on each push plate 610, and a tapered column 613 is fixedly mounted on each push plate 610.

[0025] In the process of suppressing the vibration amplitude of transversely stretched optical films, current friction damping rollers typically use sensors (such as tension sensors and laser displacement sensors) to monitor the vibration arc of the optical film in real time and feed the signal back to the control system. Then, through the cooperation of the control system and the existing resistance adjustment equipment, the damping force of the friction damping roller is adaptively adjusted. However, if the optical film experiences a sudden increase in vibration due to factors such as equipment vibration during the stretching process, and the sensor experiences response lag due to long-term operation, the vibration suppression effect of the friction damping roller on the optical film is easily reduced. At the same time, if the transverse thickness of the optical film is different in the middle and on both sides, the thicker part of the optical film has greater rigidity and greater inertia during vibration, while the thinner part is more prone to deformation and vibration. Therefore, the vibration amplitude of the middle and both sides of the optical film will be different. The existing integrated friction damping roller design cannot provide precise damping force for different vibration amplitudes in the transverse direction of the optical film, thus reducing the vibration suppression effect of the optical film.

[0026] After the positioning component 3 adjusts the spacing between the upper and lower damping rollers 5 according to the thickness of the film 2, the main body 1 of the device starts to stretch the film 2 laterally. During this process, the friction between the stretched film 2 and the multiple damping rollers 5 can drive the multiple damping rollers 5 to rotate (the rotation directions of the upper and lower relative damping rollers 5 are opposite). At this stage, if the film 2 is relatively stable when subjected to force and the vibration amplitude is small, the multiple damping rollers 5 cooperate to suppress the vibration of the film 2. During the process of rotating at a uniform speed under force, the corresponding rotating rod 61, the inertial flywheel 62, the drive plate 63, the drive component 67, and the round rod 65 can rotate together (at this time, the inertial flywheel 62 and the corresponding rotating rod 61 are relatively stationary, and the drive component 67 and the corresponding round rod 65 are relatively stationary). If the film 2 experiences increased vibration due to factors such as unstable tension, it will cause uneven friction between the film 2 and the damping roller 5. This will cause the damping roller 5 to suddenly accelerate or decelerate the corresponding rotating rod 61. At this time, due to the large mass and rotational inertia of the inertial flywheel 62, the inertial flywheel 62 will "try to maintain its original speed". Therefore, when the vibration of the film 2 intensifies and the speed of the damping roller 5 and the rotating rod 61 suddenly changes, the inertial flywheel 62 will have a speed difference, i.e., a displacement difference, with the corresponding rotating rod 61 due to its inertia. If the vibration of the film 2 causes the damping roller 5 and the rotating rod 61 to suddenly accelerate, the inertial flywheel 62 will "not be able to keep up" due to inertia, and its speed will be lower than that of the corresponding rotating rod 61. If the vibration of the film 2 causes the damping roller 5 and the rotating rod 61 to suddenly decelerate, the inertial flywheel 62 will "not be able to stop" due to inertia, and its speed will be faster than that of the corresponding rotating rod 61.

[0027] When the vibration of the film 2 intensifies, causing a speed difference (i.e., a position difference) between the damping roller 5, the rotating rod 61, and the corresponding inertial flywheel 62, the inertial flywheel 62 will apply a driving force to the corresponding driving component 67 through the corresponding two driving plates 63, causing the driving component 67 to deflect relative to the corresponding round rod 65. When the driving component 67 deflects relative to the corresponding round rod 65, the engagement of the corresponding two driving balls 69 and the threaded groove 66 allows the driving component 67 to move the corresponding two connecting plates 68, push plate 610, conical column one 612, and conical column two 613 to one side. Figure 10 and Figure 11 In the direction shown, when the damping roller 5 and the rotating rod 61 suddenly accelerate, the corresponding inertial flywheel 62, due to inertia, drives the corresponding driving component 67 to rotate counterclockwise relative to the corresponding round rod 65. At this time, through the cooperation of the corresponding two driving balls 69 and the threaded groove 66, the corresponding push plate 610, conical column one 612, and conical column two 613 can move to the left (as shown). Figure 13 (as shown in the direction), otherwise move to the right.

[0028] Reference Figures 3-15 The extrusion mechanism includes a fixed plate 615 fixedly installed on the rod 614. Two support rods 616 are fixedly installed on each fixed plate 615. Two rings 617 are fixedly installed through and between the two support rods 616. A pushing component is installed between the rings 617. A springback component is installed between the push plate 610 and the support rods 616.

[0029] The pressing component includes pressing rods 619 that are uniformly and slidably mounted on rings 617. Compression springs 620 are fixedly installed between the pressing rods 619 and the corresponding rings 617. Friction plates 621 are fixedly installed on one end of each pressing rod 619.

[0030] The rebound component includes ball bearings 611 that are rotatably mounted on push plate 610. Two straight plates are fixedly mounted on each ball bearing 611. Positioning plates are fixedly mounted on each support rod 616. Spring telescopic rods 618 are fixedly mounted between the straight plates and the corresponding positioning plates.

[0031] When the speed difference between the inertial flywheel 62 and the corresponding rotating rod 61 causes the drive component 67 to move and push the corresponding push plate 610 and conical column one 612 and conical column two 613 to one side, such as when moving to the left (e.g.) Figure 13(As shown in the direction), at this time, the pressure applied by the conical column 612 to the ball on the corresponding extrusion rod 619 can drive the corresponding multiple extrusion rods 619 to move away from each other and extrude pressure on the corresponding friction plate 621. In this way, when the film 2 shakes more, the frictional resistance of the multiple friction plates 621 to the corresponding damping roller 5 is increased, that is, the frictional damping force of the damping roller 5 on the movement of the film 2 is increased, thereby improving the degree of suppression of film 2 shaking by the damping roller 5. This helps to improve the stability of the tension of the film 2 when the device stretches the film 2 laterally and improves the lateral stretching effect of the device on the film 2.

[0032] However, if the driving component 67 is driven to move the corresponding push plate 610, conical column one 612, and conical column two 613 to the right (e.g. Figure 13 (As shown in the direction), at this time, the extrusion force applied by the conical column 2 613 to the ball on the corresponding extrusion rod 619 (at this time, as the corresponding conical column 1 612 moves to the right under force, the extrusion force applied by the conical column 1 612 to the corresponding extrusion rod 619 gradually weakens, that is, the extrusion force applied by the extrusion rod 619 on this side to the corresponding friction plate 621 will gradually weaken, but the extrusion force applied by the multiple extrusion rods 619 on one side of the conical column 2 613 to the friction plate 621 can ensure the pressure enhancement effect on the damping roller 5 at this stage), can also drive the corresponding extrusion rods 619 to move away from each other, and extrude the corresponding friction plate 621 (the multiple friction plates 621 are all set to have a certain elasticity), that is, increase the frictional resistance when the corresponding damping roller 5 is rotated under force, and increase its degree of suppression of the film 2 shaking.

[0033] Meanwhile, the speed difference, i.e., the positional deviation, between the inertial flywheel 62 and the corresponding rotating rod 61 will change with the magnitude of the film 2's vibration. For example, when the increase in the vibration amplitude of the film 2 is small, the speed difference, i.e., the positional deviation, between the inertial flywheel 62 and the corresponding rotating rod 61 will also be small. At this time, the frictional damping force increased on the corresponding damping roller 5 through the cooperation of the two corresponding drive plates 63, drive components 67, push plates 610 and extrusion mechanism will also be small. However, when the increase in the vibration amplitude of the film 2 is large, the speed changes of the damping roller 5 and the rotating rod 61 are large, i.e., the speed difference between the inertial flywheel 62 and the corresponding rotating rod 61 is large. At this time, the frictional damping force increased on the corresponding damping roller 5 through the cooperation of the drive mechanism and the extrusion mechanism will also be adaptively increased. In this way, the effect of adaptively increasing the frictional damping force of the damping roller 5 on the film 2 according to the vibration amplitude of the film 2 can be achieved, which helps to further improve the vibration suppression effect of multiple damping rollers 5 on the film 2 and further improve the stretching effect of the device on the film 2.

[0034] Simultaneously, as the driving component 67 is driven by force to move the corresponding push plate 610 and ball bearing 611, the ball bearing 611 compresses the corresponding two spring telescopic rods 618 through the corresponding two straight plates. This allows the rotating rod 61 to "pull" the corresponding inertial flywheel 62 to rotate synchronously again, or the aforementioned resistance adjustment component 6 to suppress the vibration of the film 2, reducing the vibration arc of the film 2. The damping roller 5 and the rotating rod 61 then return to uniform rotation. When the rotating rod 61 and the corresponding inertial flywheel 62 rotate synchronously, the corresponding push plate can be driven by the elastic force of the corresponding two spring telescopic rods 618. 610 drives the corresponding conical column 612, conical column 613 and two connecting plates 68 to move and reset. During this process, the corresponding compression spring 620, which is being squeezed, can drive the corresponding extrusion rods 619 to move closer to each other and gradually restore the initial extrusion force of the multiple extrusion rods 619 on the corresponding friction plate 621, that is, the initial damping force of the damping roller 5 on the corresponding film 2. At the same time, the two connecting plates 68 are moved and reset under force. The reverse force applied to the corresponding driving component 67 can drive the corresponding driving component 67, the two driving plates 63 and the inertial flywheel 62 to rotate and reset.

[0035] Furthermore, when the film 2 experiences varying vibration amplitudes at different transverse positions due to factors such as unstable transverse tension or differences in transverse thickness, the independent resistance adjustment settings within multiple damping rollers 5 can further enhance the device's targeted vibration suppression effect on the film 2 at different transverse positions. This can further improve the device's vibration suppression effect on the film 2 and enhance the device's final transverse stretching effect on the film 2.

[0036] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0037] In this invention, before using the device to stretch the film 2 laterally, the spacing between the two damping rollers 5 can be adjusted adaptively according to the lateral thickness of the film 2 by using the adjustment component 3 in conjunction with the existing fiber optic spectrometer. This helps to improve the fit between the multiple damping rollers 5 and the upper and lower sides of the film 2, and improve the damping effect of the multiple damping rollers 5 on the film 2.

[0038] If the main body 1 of the device begins to stretch the film 2 laterally, and the film 2 experiences increased vibration due to unstable lateral tension, the drive mechanism and the extrusion mechanism can work together to timely and adaptively increase the frictional damping force of the damping roller 5 on the film 2 according to the vibration arc of the film 2. That is, the damping roller 5 can adaptively increase the degree of vibration suppression of the film 2, which can help to further improve the lateral stretching effect of the device on the film 2. Furthermore, through the independent resistance adjustment setting inside multiple damping rollers 5, precise damping force can be provided for different vibration amplitudes in the lateral direction of the film 2, which can further improve the vibration suppression effect of the device on the film 2 and further improve the lateral stretching effect of the device on the film 2.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An optical thin film lateral stretching device, comprising a device body (1) and a thin film (2), characterized in that, The device body (1) is provided with a positioning component (3); The adjustment component (3) includes multiple threaded rods (33) rotatably mounted on the inner wall of the device body (1). Two threaded rods (34) are rotatably mounted on the inner wall of the device body (1). Sliding plates (36) are threadedly mounted on both threaded rods (34) and threaded rods (33). Two connecting rods (37) are fixedly mounted through each sliding plate (36). A support cover (4) is fixedly mounted between the two connecting rods (37). A damping roller (5) is rotatably mounted inside the support cover (4). An adjustment mechanism is installed inside the device body (1) for adaptively adjusting the height of the damping roller (5). An adjustment component (6) is provided between the damping rollers (5) for adaptively adjusting the friction damping force of the damping roller (5). The resistance adjustment assembly (6) includes rotating rods (61) respectively rotatably mounted on the support cover (4), and each rotating rod (61) is fixedly connected to a corresponding damping roller (5). Each rotating rod (61) is rotatably mounted with an inertial flywheel (62). A drive mechanism is installed between the inertial flywheel (62) and the rotating rod (61). Each support cover (4) is fixedly mounted with a rod body (614). A pressing mechanism is installed between the rod bodies (614).

2. The optical thin film transverse stretching device according to claim 1, characterized in that, The adjustment mechanism includes two micro motors (31) fixedly installed on the inner wall of the main body (1) of the device. The driving ends of the two micro motors (31) are fixedly installed with rotating shafts (32). Two reciprocating screws (39) are installed on the two rotating shafts (32) through two one-way bearings (38). Two reciprocating screws (310) are fixedly installed on the two rotating shafts (32). Slider (311) is installed on the two reciprocating screws (310) and the multiple reciprocating screws (39) through ball nuts. The slider (311) is connected to the threaded rod (33) and the threaded rod (34) through a transmission component.

3. The optical thin film lateral stretching device according to claim 1, characterized in that, The transmission component includes racks (312) fixedly mounted on the slider (311), and rotating gears (35) fixedly mounted on the two threaded rods (34) and the multiple threaded rods (33), and the rotating gears (35) are all engaged with the corresponding racks (312).

4. The optical thin film transverse stretching device according to claim 1, characterized in that, The drive mechanism includes two drive plates (63) fixedly mounted on an inertial flywheel (62). A round rod (65) is rotatably mounted on each of the rotating rods (61). A threaded groove (66) is opened on each of the round rods (65). Two drive balls (69) are slidably mounted on each of the threaded grooves (66). A drive component (67) is fixedly mounted between each of the two drive balls (69). The drive component (67) cooperates with the two drive plates (63). Two arc-shaped openings (64) are opened on each of the round rods (65). A pushing component is installed between the drive components (67).

5. The optical thin film transverse stretching device according to claim 4, characterized in that, The pushing component includes two connecting plates (68) respectively fixedly installed on the driving component (67), and a push plate (610) is fixedly installed between the two connecting plates (68). A tapered column one (612) is fixedly installed on each push plate (610), and a tapered column two (613) is fixedly installed on each push plate (610).

6. The optical thin film transverse stretching device according to claim 5, characterized in that, The extrusion mechanism includes a fixed plate (615) fixedly installed on the rod (614). Two support rods (616) are fixedly installed on each fixed plate (615). Two rings (617) are fixedly installed through and between the two support rods (616). A pushing component is installed between the rings (617). A springback component is installed between the push plate (610) and the support rods (616).

7. The optical thin film transverse stretching device according to claim 6, characterized in that, The pushing component includes a pressing rod (619) that is uniformly and slidably mounted on a ring (617) in an annular shape. A compression spring (620) is fixedly installed between the pressing rod (619) and the corresponding ring (617). A friction plate (621) is fixedly installed on one end of the pressing rod (619).

8. The optical thin film lateral stretching device according to claim 6, characterized in that, The rebound component includes ball bearings (611) rotatably mounted on push plate (610), each ball bearing (611) having two straight plates fixedly mounted on it, each support rod (616) having a positioning plate fixedly mounted on it, and each straight plate and the corresponding positioning plate having a spring telescopic rod (618) fixedly mounted between it.

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