A high-contrast vehicle screen POL production process

Abstract

The present invention provides a high-contrast vehicle-mounted screen POL production process, which belongs to the field of vehicle screen production technology. It includes an extension groove, a color-correcting groove and a PVA film. The present invention sets a linkage component and a cleaning component and other structures. When the fan is working, its air outlet transmits wind power into the air duct and discharges it through the connecting pipe and the push pipe. Since the connecting pipe is arc-shaped, the wind power discharged by the push pipe will provide a push for itself and the connecting pipe, thereby causing the wind guide to rotate with the air duct as the central axis. The discharged wind power will also blow the extension liquid on the top of the PVA film, causing it to reach the side of the sponge block along the inclined surface of the lower push plate and be absorbed by the sponge block, further improving the efficiency of the device in absorbing the extension liquid. When the PVA film enters the color-correcting groove, the extension liquid outside the PVA film is reduced, which also reduces the probability of the boric acid concentration of the color-correcting liquid in the color-correcting groove increasing, thereby improving the stability of the device, thereby improving the quality of PVA film processing.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle screen production, and in particular to a production process for a high-contrast vehicle screen POL. Background Art

[0002] In the automotive manufacturing industry, car screens are an indispensable type of product, which are usually made of PVA film as the main body. The production process of PVA is generally divided into pre-washing, swelling, dyeing, extension, color correction and drying. During each stage of work, boric acid will be added to the extension liquid and color correction liquid to achieve the purpose of color fixation. Similarly, boric acid can also prevent the PVA film from cracking during alternating hot and cold temperatures.

[0003] In order to pursue low transmittance and high contrast products, normal iodine-based and dye-based polarizers cannot meet this requirement. Process improvements are usually made during the pre-processing of the PVA film. Generally, the stretching ratio and the concentration of the boric acid liquid are adjusted to meet the production requirements. When unwinding, the PVA film goes from the stretching tank to the color-correcting tank, and some of the stretching liquid will be brought into the color-correcting tank. However, the boric acid content in the stretching liquid is greater than the boric acid content in the color-correcting liquid, which leads to an increase in the boric acid content in the color-correcting liquid. The traction machine will directly pull the PVA film to the next workstation, which will make the color-correcting effect worse, and the final use effect of the screen will not meet expectations. At the same time, the quality of the car screen display will also be reduced.

[0004] Therefore, this application provides a high-contrast vehicle-mounted screen POL production process to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-contrast vehicle-mounted screen POL production process to solve the problem that when the existing PVA film reaches the color-correcting tank from the extension tank, part of the extension liquid will be brought into the color-correcting tank, but the boric acid content in the extension liquid is greater than the boric acid content in the color-correcting liquid, which in turn leads to an increase in the boric acid content in the color-correcting liquid, which will make the color-correcting effect worse and reduce the quality of the vehicle-mounted screen.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A high-contrast vehicle-mounted screen POL production process includes an extension slot, a color-correcting slot, and a polyvinyl alcohol (PVA) film. The extension slot is connected to the color-correcting slot via a base, and the PVA film extends through the extension slot and the color-correcting slot. A fan is fixedly installed on the top of the base. The process also includes a cleaning assembly disposed on the top of the base, and the PVA film extends through the cleaning assembly. An adsorption assembly is disposed on the top of the base, and the PVA film extends through the adsorption assembly. The adsorption assembly is used to adsorb extension liquid on the surface of the PVA film. An atomizer is fixedly installed on the top of the base, and is used to neutralize the boric acid concentration on the surface of the PVA film. A linkage assembly is disposed inside the cleaning assembly. The interior of the extension slot is filled with extension liquid, and the interior of the color-correcting slot is filled with color-correcting liquid. The cleaning assembly includes a shell fixedly mounted on the top of the base, an upper push plate fixedly mounted inside the shell, a bottom plate connected to the inside of the shell via a spring telescopic rod 1, a lower push plate fixedly mounted on the side of the bottom plate, a sponge block provided on the top of the bottom plate, a partition elastically connected to the top of the sponge block via a spring telescopic rod 2, a guide plate fixedly mounted on the side of the partition, and a threaded cover threadedly mounted on the bottom of the shell. The PVA membrane is located between the upper push plate and the lower push plate. The linkage assembly includes an air duct movably mounted inside the shell, the outside of the air duct is connected to a push pipe via equidistant connecting pipes, and the inside of the air duct is movably connected to the air outlet of the fan.

[0008] Optionally, the bottom plate and the partition are both vertically movable inside the shell, the elastic coefficient of the spring telescopic rod 2 is greater than the hardness of the sponge block, the PVA membrane divides the interior of the shell into two independent upper and lower chambers, and there are gaps between the two sides of the sponge block and the inner wall of the shell, and the gaps are connected to the lower end chamber.

[0009] Optionally, the interiors of the air duct, connecting pipe and push pipe are interconnected, the connecting pipe is arc-shaped, each push pipe is grouped with several connecting pipes and constitutes a wind guide, and the wind guide is arranged at equal angles in a circular direction on the outside of the air duct.

[0010] Optionally, the fan delivers airflow to the inside of the air duct, the airflow is discharged through the wind guide and pushes the wind guide to rotate around the air duct, and the guide plate is located on the travel route of the push tube.

[0011] Optionally, the linkage assembly further includes a belt, and the air duct is connected to a cover plate via the belt.

[0012] Optionally, the adsorption component includes a bracket clamped on the top of the base, and two connecting plates symmetrically arranged on the bracket are provided. A roller is movably installed on each side of the connecting plate, and the outer periphery of the two rollers is covered with a sponge cover.

[0013] Optionally, the connecting plate, the sponge cover and the two rollers form a group and constitute an adsorber. There are two adsorbers in total and they are longitudinally distributed on the bracket. The sponge cover is in contact with the surface of the PVA membrane.

[0014] Optionally, the adsorption assembly further comprises a plurality of spring sheets arranged at equal angles in a circumferential direction on the outer circumference of the roller, the spring sheets being clamped to the inner wall of the cover plate, and the roller and the cover plate being movably mounted.

[0015] Optionally, the adsorption assembly further includes two through tubes, which pass through the side of the bracket, and the upper and lower ends of the two through tubes are respectively connected to a collection box, and the bottom of the collection box is inclined and presses the sponge sleeve.

[0016] Optionally, the adsorption assembly further comprises a small gear with a bearing mounted on the bracket, the small gear is engaged with two large gears, and the large gears are fixed to the side of the roller.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting up structures such as linkage components and cleaning components, when the fan is working, its air outlet transmits wind into the air duct and discharges it through the connecting pipe and the push pipe. Since the connecting pipe is arc-shaped, the wind discharged by the push pipe will provide a push for itself and the connecting pipe, thereby causing the wind guide to rotate with the air duct as the central axis, and the discharged wind will also blow the extension liquid on the top of the PVA film, so that it reaches the side of the sponge block along the inclined surface of the lower push plate and is absorbed by the sponge block, further improving the efficiency of the device in absorbing the extension liquid. When the PVA film enters the color-correcting tank, the extension liquid outside the PVA film is reduced, which also reduces the probability of an increase in the boric acid concentration of the color-correcting liquid in the color-correcting tank. The sponge block performs the absorption work, and when the extension liquid accumulates, it will not splash when blown by wind, thereby improving the stability of the device and thereby improving the quality of PVA film processing.

[0019] By setting up linkage components and adsorption components and other structures, when the air duct rotates, the belt, cover and spring sheet will also drive the roller to rotate, and the roller will drive the sponge cover to roll on the outside of the roller, such as Figure 12 As shown in the figure, the rotation of the upper roller will drive the rotation of the lower large gear and roller through the large gear and small gear on its outer side. At this time, the rolling direction of the sponge sleeve is consistent with the direction in which the PVA film is pulled, further avoiding scratches on the outer surface of the PVA film caused by the sponge sleeve when absorbing the extension liquid, thereby improving the stability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the shell and structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 4 This is a schematic diagram of the general structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the housing and the spring telescopic rod of the present invention;

[0026] Figure 6 This is a front view of the internal structure of the housing of the present invention;

[0027] Figure 7 This is a schematic diagram of the cooperation between the PVA membrane and the shell structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the present invention and its structure;

[0029] Figure 9 This is a cross-sectional diagram of the roller and structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the present invention and the spring sheet structure;

[0031] Figure 11 This is a schematic diagram of the structure of the collection box and the sponge sleeve of the present invention;

[0032] Figure 12 It is a cross-sectional schematic diagram of the structure of the through pipe and the collection box of the present invention.

[0033] [Reference Signs]

[0034] 1. Extension slot; 2. Color-filling slot; 3. PVA film; 4. Base; 5. Cleaning assembly; 51. Housing; 52. Spring telescopic rod 1; 53. Bottom plate; 54. Sponge block; 55. Spring telescopic rod 2; 56. Partition; 57. Guide plate; 58. Upper push plate; 59. Lower push plate; 510. Threaded cover; 6. Adsorption assembly; 61. Bracket; 62. Connecting plate; 63. Roller; 64. Sponge cover; 65. Collection box; 66. Through pipe; 67. Spring sheet; 68. Large gear; 69. Small gear; 7. Atomizer; 8. Fan; 9. Linkage assembly; 91. Air duct; 92. Connecting pipe; 93. Push pipe; 94. Belt; 95. Cover plate.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0036] The following describes in detail a high-contrast vehicle-mounted screen POL production process provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0037] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0040] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a high-contrast vehicle-mounted screen POL production process, including an extension groove 1, a color-correcting groove 2, and a PVA film 3. The extension groove 1 is connected to the color-correcting groove 2 via a base 4. The PVA film 3 passes through the extension groove 1 and the color-correcting groove 2. A fan 8 is fixedly installed on the top of the base 4. The base 4 also includes a cleaning component 5 arranged on the top of the base 4, and the PVA film 3 passes through the cleaning component 5. An adsorption component 6 is arranged on the top of the base 4, and the PVA film 3 passes through the adsorption component 6. The adsorption component 6 is used to adsorb the extension liquid on the surface of the PVA film 3. An atomizer 7 is fixedly installed on the top of the base 4. The atomizer 7 is used to neutralize the boric acid concentration on the surface of the PVA film 3. A linkage component 9 is arranged inside the cleaning component 5. The interior of the extension groove 1 is filled with extension liquid, and the interior of the color-correcting groove 2 is filled with color-correcting liquid. The cleaning assembly 5 includes a housing 51 fixedly mounted on the top of the base 4. An upper push plate 58 is fixedly mounted inside the housing 51. The interior of the housing 51 is connected to a bottom plate 53 via a spring telescopic rod 1 52. A lower push plate 59 is fixedly mounted on the side of the bottom plate 53. A sponge block 54 is provided on the top of the bottom plate 53. The top of the sponge block 54 is elastically connected to a partition 56 via a spring telescopic rod 2 55. A guide plate 57 is fixedly mounted on the side of the partition 56. A threaded cover 510 is threadedly mounted on the bottom of the housing 51. The PVA membrane 3 is located between the upper push plate 58 and the lower push plate 59. The linkage assembly 9 includes an air duct 91 movably mounted inside the housing 51. The outside of the air duct 91 is connected to a push pipe 93 via equidistant connecting pipes 92. The inside of the air duct 91 is movably connected to the air outlet of the fan 8.

[0042] The above scheme is adopted: the boric acid content in the extension liquid is greater than the boric acid content in the color-replenishing liquid, and the PVA film 3 enters the extension tank 1 first, then enters the color-replenishing tank 2, and is finally pulled to the next processing location by the traction machine. Before entering the color-replenishing tank 2, it will also pass through the cleaning component 5, the adsorption component 6 and the atomizer 7. When the PVA film 3 is pulled, the shell 51 and the upper push plate 58 are fixed in position, and the spring telescopic rod 52 will always push the bottom plate 53 and the lower push plate 59 down and the lower push plate 5 9 is in close contact with the top of the pva film 3. At the same time, the upper push plate 58 is also in close contact with the bottom of the pva film 3. The extension liquid on the surface of the pva film 3 will be scratched by the bottom plate 53 and the upper push plate 58. When the pva film 3 passes through the cleaning component 5, it will also pass through the adsorption component 6. At this time, the adsorption component 6 will wipe the extension liquid that has not been scratched clean on the surface of the pva film 3, further reducing the extension liquid on the surface of the pva film 3 and reducing the concentration of boric acid in the color-replenishing liquid inside the color-replenishing tank 2, thereby making the color-replenishing effect better.

[0043] Before the PVA film 3 enters the color-replenishing tank 2, it will pass through the atomizer 7, which will spray water mist on the surface of the PVA film 3. A small amount of water will reduce the concentration of boric acid remaining on the surface of the PVA film 3, further improving its working quality.

[0044] like Figure 3-Figure 7 As shown, the interiors of the air duct 91, connecting pipe 92 and push pipe 93 are interconnected, the connecting pipe 92 is arc-shaped, each push pipe 93 is a group with several connecting pipes 92 and constitutes a wind guide, and the wind guide is arranged at equal angles in a circumferential direction on the outside of the air duct 91.

[0045] The fan 8 delivers airflow to the inside of the air duct 91 , and the airflow is discharged through the wind guide and pushes the wind guide to rotate around the air duct 91 . The guide plate 57 is located on the travel path of the push tube 93 .

[0046] The bottom plate 53 and the partition 56 are both vertically movable inside the shell 51. The elastic coefficient of the spring telescopic rod 55 is greater than the hardness of the sponge block 54. The PVA membrane 3 divides the interior of the shell 51 into two independent chambers, upper and lower. There are gaps between the two sides of the sponge block 54 and the inner wall of the shell 51, and the gaps are connected to the lower end chamber.

[0047] The above scheme is adopted: when the fan 8 is working, its air outlet transmits wind into the air duct 91 and discharges it through the connecting pipe 92 and the push pipe 93. Since the connecting pipe 92 is arc-shaped, the wind discharged by the push pipe 93 will provide a push for itself and the connecting pipe 92, thereby causing the wind guide to rotate with the air duct 91 as the central axis. The discharged wind will also blow the extension liquid on the top of the PVA membrane 3, so that it reaches the side of the sponge block 54 along the inclined surface of the lower push plate 59 and is absorbed by the sponge block 54, further improving the efficiency of the device in absorbing the extension liquid. Since the sponge block 54 performs the absorption work, when the extension liquid accumulates, it will not splash when blown by the wind, thereby improving the stability of the device.

[0048] When the push tube 93 rotates, it also presses the guide plate 57 downwards. At this time, the guide plate 57 compresses the spring telescopic rod 2 55 through the partition 56. The partition 56 descends first and prevents the extension liquid inside the sponge block 54 from flowing out toward the push plate 59 when it is squeezed, further ensuring the smooth operation of the device. Figure 7 As shown in the sponge block 54 and the shell 51, when the sponge block 54 is squeezed, the extension liquid will flow through the gaps on both sides thereof to the lower end of the shell 51 and be collected. It should be noted that since boric acid is a weakly acidic liquid, the sponge block 54 needs to be replaced regularly, and the threaded cover 510 also needs to be opened regularly and the inside of the shell 51 needs to be cleaned to ensure long-term operation.

[0049] like Figures 8-11 As shown, the adsorption component 6 includes a bracket 61 that is clamped to the top of the base 4. Two connecting plates 62 that are symmetrical in upper and lower directions are provided on the bracket 61. A roller 63 is movably installed on each side of the connecting plate 62. The outer periphery of the two rollers 63 is covered with a sponge cover 64.

[0050] The connecting plate 62, the sponge cover 64 and the two rollers 63 form a group and constitute an absorber. There are two absorbers in total and they are longitudinally distributed on the bracket 61. The sponge cover 64 is in contact with the surface of the PVA membrane 3.

[0051] Adopting the above scheme: after the pva film 3 passes through the cleaning component 5, it will contact the sponge cover 64 at the first time, and the stretching liquid remaining on its surface will be absorbed by the sponge cover 64, and the sponge cover 64 moves through the roller 63 to prevent the sponge cover 64 from scratching the pva film 3.

[0052] like Figures 8-12 As shown, the linkage assembly 9 further includes a belt 94 , and the air duct 91 is connected to a cover plate 95 via the belt 94 .

[0053] The adsorption assembly 6 further includes a plurality of spring pieces 67 circumferentially arranged at equal angles on the outer periphery of the roller 63 . The spring pieces 67 are clamped to the inner wall of the cover plate 95 , and the roller 63 and the cover plate 95 are movably mounted.

[0054] The adsorption assembly 6 further includes a small gear 69 mounted on a bracket 61 via a bearing. The small gear 69 is engaged with two large gears 68 , and the large gears 68 are fixed to the side of the roller 63 .

[0055] With the above solution, when the air duct 91 rotates, the belt 94, the cover 95 and the spring sheet 67 drive the roller 63 to rotate, and the roller 63 drives the sponge cover 64 to roll on the outside of the roller 63. Figure 12 The large gear 68 and the small gear 69 shown in the figure, the rotation of the upper roller 63 will drive the large gear 68 and the roller 63 below to rotate through the large gear 68 and the small gear 69 on the outside thereof. At this time, the rolling direction of the sponge cover 64 is consistent with the direction in which the PVA film 3 is pulled, further preventing the sponge cover 64 from scratching the outer surface of the PVA film 3 when absorbing the extension liquid;

[0056] When the PVA film 3 stops being pulled, the sponge sleeve 64 will also stop, and the cover plate 95 rotates, and the spring sheet 67 will disengage from the slot on the inner wall of the cover plate 95, thereby making the cover plate 95 idle, thereby improving the safety of the adsorption work of the adsorption component 6 and improving the quality of the work.

[0057] like Figure 11 and Figure 12 As shown, the adsorption assembly 6 also includes two through pipes 66 , which pass through the side of the bracket 61 . The upper and lower ends of the two through pipes 66 are connected to a collection box 65 , and the bottom of the collection box 65 is inclined and presses the sponge sleeve 64 .

[0058] Adopting the above-mentioned scheme: during the rolling process of the sponge sleeve 64, the bottom of the collecting box 65 continuously presses the sponge sleeve 64, and the extension liquid adsorbed by the sponge sleeve 64 will be squeezed and enter the scrap box below through the collecting box 65 and the through pipe 66, thereby enabling the device to continue to work, and further ensuring the processing quality of the PVA film 3.

[0059] The working principle provided by the present invention;

[0060] The PVA film 3 first enters the extension tank 1, then enters the color-replenishing tank 2, and is finally pulled by the traction machine to the next processing location. Before entering the color-replenishing tank 2, it will pass through the cleaning component 5, the adsorption component 6 and the atomizer 7. When the PVA film 3 is pulled, the shell 51 and the upper push plate 58 are fixed in position, and the spring telescopic rod 1 52 will always push the bottom plate 53 and the lower push plate 59 down, and the lower push plate 59 is close to the top of the PVA film 3. At the same time, the upper push plate 58 is also close to the bottom of the PVA film 3. The extension liquid on the surface of the PVA film 3 will be scratched by the bottom plate 53 and the upper push plate 58;

[0061] When the fan 8 is working, its air outlet transmits wind into the air duct 91 and discharges it through the connecting pipe 92 and the push pipe 93. Since the connecting pipe 92 is arc-shaped, the wind discharged by the push pipe 93 will provide a push for itself and the connecting pipe 92, thereby causing the wind guide to rotate with the air duct 91 as the central axis. The discharged wind will also blow the extension liquid on the top of the PVA membrane 3, causing it to follow the inclined surface of the lower push plate 59 to reach the side of the sponge block 54 and be absorbed by the sponge block 54.

[0062] When the push tube 93 rotates, it also presses the guide plate 57 downward. At this time, the guide plate 57 compresses the spring telescopic rod 2 55 through the partition 56. The partition 56 descends first and prevents the extension liquid inside the sponge block 54 from flowing out in the direction of the downward push plate 59 when the sponge block 54 is squeezed. When the sponge block 54 is squeezed, the extension liquid will flow through the gaps on both sides of it to the lower end of the shell 51 and be collected. It should be noted that since boric acid is a weak acidic liquid, the sponge block 54 needs to be replaced regularly, and the threaded cover 510 also needs to be opened regularly and the inside of the shell 51 needs to be cleaned to ensure long-term operation.

[0063] When the air duct 91 rotates, the belt 94, the cover plate 95 and the spring sheet 67 drive the roller 63 to rotate, and the roller 63 drives the sponge cover 64 to roll on the outside of the roller 63. Figure 12 The large gear 68 and the small gear 69 shown in the figure, the rotation of the upper roller 63 will drive the large gear 68 and the roller 63 below to rotate through the large gear 68 and the small gear 69 on the outside thereof. At this time, the rolling direction of the sponge cover 64 is consistent with the direction in which the PVA film 3 is pulled, further preventing the sponge cover 64 from scratching the outer surface of the PVA film 3 when absorbing the extension liquid;

[0064] When the PVA film 3 stops being pulled, the sponge sleeve 64 will also stop, and the cover plate 95 rotates, and the spring sheet 67 will disengage from the slot on the inner wall of the cover plate 95, thereby making the cover plate 95 idle. During the rolling process of the sponge sleeve 64, the bottom of the collecting box 65 continues to press the sponge sleeve 64, and the extension liquid adsorbed by the sponge sleeve 64 will be squeezed and enter the scrap box below through the collecting box 65 and the through pipe 66, thereby enabling the device to continue to work, further ensuring the quality of the processing of the PVA film 3.

[0065] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0066] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A high-contrast vehicle screen POL production process, comprising an extension slot, a color-compensating slot, and a PVA film, wherein the extension slot is connected to the color-compensating slot via a base, the PVA film passes through the extension slot and the color-compensating slot, and a fan is fixed on the top of the base, characterized in that: Also included is a cleaning component disposed on the top of the base, wherein the PVA membrane passes through the cleaning component; An adsorption component is provided on the top of the base, the PVA membrane passes through the adsorption component, and the adsorption component is used to adsorb the extension liquid on the surface of the PVA membrane; An atomizer, the atomizer being fixedly mounted on the top of the base and being used to neutralize the boric acid concentration on the surface of the PVA membrane; A linkage component, wherein the linkage component is arranged inside the cleaning component; The interior of the extension tank is filled with an extension liquid, and the interior of the color-replenishing tank is filled with a color-replenishing liquid; The cleaning assembly includes a shell fixedly mounted on the top of the base, an upper push plate fixedly mounted inside the shell, the inside of the shell is connected to a bottom plate via a spring telescopic rod 1, a lower push plate fixedly mounted on the side of the bottom plate, a sponge block is provided on the top of the bottom plate, the top of the sponge block is elastically connected to a partition via a spring telescopic rod 2, a guide plate fixedly mounted on the side of the partition, and a threaded cover is threadedly mounted on the bottom of the shell; The pva membrane is located between the upper push plate and the lower push plate; The linkage assembly includes an air duct movably installed inside the shell, the outside of the air duct is connected to a push pipe through equidistant connecting pipes, and the inside of the air duct is movably connected to the air outlet of the fan.

2. The high-contrast vehicle-mounted screen POL production process according to claim 1 is characterized in that: The bottom plate and the partition are both vertically movable inside the shell. The PVA membrane divides the interior of the shell into two independent upper and lower chambers. There are gaps between the two sides of the sponge block and the inner wall of the shell. The gaps are connected to the lower end chamber. When the guide plate compresses the spring telescopic rod 2 through the partition, the partition descends first and prevents the sponge block from being squeezed, and the extension liquid inside it pushes the plate downward to flow out.

3. The high-contrast vehicle-mounted screen POL production process according to claim 1 is characterized in that: The interiors of the air duct, connecting pipe and push pipe are all interconnected. The connecting pipe is arc-shaped. Each push pipe is a group with several connecting pipes and constitutes a wind guide. The wind guide is arranged at equal angles in a circular direction on the outside of the air duct.

4. The high-contrast vehicle-mounted screen POL production process according to claim 3 is characterized in that: The fan delivers airflow to the inside of the air duct, and the airflow is discharged through the wind guide and pushes the wind guide to rotate around the air duct. The guide plate is located on the travel route of the push tube.

5. The high-contrast vehicle-mounted screen POL production process according to claim 3 is characterized in that: The linkage assembly further comprises a belt, and the air duct is connected to a cover plate via the belt.

6. The high-contrast vehicle-mounted screen POL production process according to claim 5 is characterized in that: The adsorption component includes a bracket clamped on the top of the base, and two connecting plates symmetrically arranged on the bracket are provided. A roller is movably installed on each side of the connecting plate, and the outer periphery of the two rollers is covered with a sponge cover.

7. The high-contrast vehicle-mounted screen POL production process according to claim 6 is characterized in that: The connecting plate, the sponge cover and the two rollers form a group and constitute an absorber. There are two absorbers in total and they are longitudinally distributed on the bracket. The sponge cover is in contact with the surface of the pva film.

8. The high-contrast vehicle-mounted screen POL production process according to claim 7 is characterized in that: The adsorption component further comprises a plurality of spring sheets which are arranged at equal angles in a circular direction on the outer periphery of the roller, the spring sheets are clamped on the inner wall of the cover plate, and the roller and the cover plate are movably mounted.

9. The high-contrast vehicle-mounted screen POL production process according to claim 8, characterized in that: The adsorption component also includes two through pipes, which pass through the side of the bracket. The upper and lower ends of the two through pipes are respectively connected to a collection box, and the bottom of the collection box is inclined and presses the sponge sleeve.

10. The high-contrast vehicle-mounted screen POL production process according to claim 9, characterized in that: The adsorption assembly also includes a small gear with a bearing mounted on the bracket, the small gear is meshed with two large gears, and the large gears are fixed on the side of the roller.

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