Elastic compression roller for processing brightness enhancement film
By integrating temperature control and adjustment components into the elastic pressure roller used for brightening film processing, the problem of uneven temperature was solved, and uniform forming and quality improvement of the microprism structure on the surface of the brightening film were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SU ZHOU LONG QIAO OPTICAL ELECTRON CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-16
AI Technical Summary
During the brightening film processing, the steam pipe causes uneven surface temperature of the elastic roller, affecting the molding consistency of the microprism structure and resulting in a decrease in the quality of the brightening film.
An elastic pressure roller for brightening film processing was designed, equipped with a temperature control component and an adjustment component. The surface temperature is controlled through an exhaust pipe and a water storage pipe. Combined with a cleaning component and a guide roller, it ensures that the film material is processed within the optimal temperature range and adjusts the pressure and cleans the film material surface in real time.
Effectively controlling the surface temperature of the pressure roller reduces structural deformation caused by uneven temperature, improves the forming uniformity of the microprism structure, reduces pressure fluctuations and contamination during processing, and enhances the quality of the brightening film.
Smart Images
Figure CN224360521U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of brightness enhancement film processing technology, specifically the elastic pressure roller for brightness enhancement film processing. Background Technology
[0002] Brightness enhancement film is an optical thin film that improves the brightness and contrast of a display. It is usually composed of multiple layers of thin films with different refractive indices. By refracting, reflecting and scattering light, it concentrates the originally dispersed light towards the observer, thereby improving the brightness of the display device.
[0003] The elastic pressure roller for brightening film processing has good elasticity and adaptability. During the brightening film processing, when the elastic pressure roller comes into contact with the brightening film or other processing parts, the surface of the pressure roller will undergo elastic deformation, so that the pressure roller closely fits the microprism structure on the surface of the brightening film.
[0004] During the brightening film processing, heat is usually transferred to the surface of the pressure roller through steam pipes. During cooling, the heat is carried away by a fan. The distribution of steam pipes can easily lead to temperature differences in different areas of the elastic pressure roller surface, resulting in inconsistent formation of the microprism structure on the surface of the brightening film and a decline in the processing quality of the brightening film.
[0005] Therefore, this utility model provides an elastic pressure roller for processing brightening films. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The elastic pressure roller for brightening film processing of this utility model includes a base; a fixed frame is fixedly connected to the top of the base; multiple guide rollers are installed in the middle of the fixed frame; an upper pressure roller and a lower pressure roller are installed in the middle of the fixed frame; the upper pressure roller and the lower pressure roller are arranged at the ends of the fixed frame; a top plate is fixedly connected to the top of the fixed frame; an adjustment component is provided at the end of the upper pressure roller; a temperature control component is installed in the middle of the upper pressure roller; a cleaning component is provided at the end of the fixed frame; the temperature control component includes two rotating seats; the rotating seats are rotatably connected to the ends of the upper pressure roller; the two rotating seats are arranged opposite to each other; the rotating seats are arranged at the ends of a fixed shaft; a connecting box is fixedly connected to the middle of one of the rotating seats; multiple exhaust pipes are fixedly connected to the middle of the connecting box; the multiple exhaust pipes are equidistantly distributed; multiple exhaust pipes are opened in the middle of the exhaust pipes. A ventilation hole; a heating rod is installed in the middle of the ventilation pipe; a water storage pipe is fixedly connected to the middle of the other rotating seat; a heat-conducting plate is fixedly connected to the middle of the water storage pipe; a first flexible hose and a second flexible hose are respectively fixedly connected to the middle of the two rotating seats; the end of the first flexible hose is located in the middle of the connecting box; an exhaust box is installed at the end of the first flexible hose; an air inlet is opened on the side wall of the exhaust box; the middle of the exhaust box penetrates the side wall of the top plate; a water pump is installed at the end of the second flexible hose; the above structure allows for direct heating and cooling of the surface of the brightening film during processing, controlling the surface temperature of the upper pressure roller to keep the film material within the optimal temperature range during processing, reducing structural deformation caused by uneven temperature, effectively increasing the uniformity of the microprism structure forming on the surface of the brightening film, and pre-setting during the brightening film processing reduces the decline in the quality of the brightening film caused by temperature fluctuations during processing.
[0008] Preferably, the adjusting assembly includes two slide grooves; the two slide grooves are formed on the inner sidewall of the fixed frame; a slider is slidably connected to the middle of the slide groove; a fixed shaft is fixedly connected to the middle of the slider; a first fixed ring is fixedly connected to the middle of the fixed shaft; a first connecting rod is fixedly connected to the middle of the two first fixed rings; two sliding rings are slidably connected to the middle of the first connecting rod; a spring is fixedly connected between the two sliding rings; a first support rod is hinged to the middle of the sliding ring; the end of the first support rod is hinged to the middle of the top plate; the above structure can adjust the pressure in real time according to the membrane material condition, so that the upper pressure roller can automatically adjust its position according to the thickness and undulation of the membrane material, realize dynamic pressure compensation, and the spring provides elastic buffering to absorb the vibration and impact generated when the upper pressure roller moves, reducing the pressure fluctuations caused by the rapid sliding of the upper pressure roller.
[0009] Preferably, the cleaning assembly includes two second support rods; the second support rods are fixedly connected to the ends of the guide rollers; two second fixing rings are rotatably connected to the middle of the second support rods; a first fixing rod is fixedly connected to the middle of the second fixing rings; a second connecting rod is fixedly connected to the ends of the two first fixing rods; and a cleaning roller is rotatably connected to the middle of the second connecting rod. This structure effectively removes tiny particles from the membrane surface, reduces the embedding of tiny particles into the membrane surface or roller surface, reduces scratches on the membrane surface by residual tiny particles under the pressure of the upper pressure roller, improves the smoothness of the membrane surface, and reduces contamination of the membrane and rollers.
[0010] Preferably, a second fixing rod is fixedly connected to the middle of the second connecting rod; a scraper box is fixedly connected to the ends of the two second fixing rods; the side wall of the second fixing rod is in contact with the cleaning roller; the above structure can collect the tiny particles after the cleaning roller has cleaned it, reduce the accumulation of too many pollutants on the surface of the cleaning roller, which would cause the tiny particles to re-attach to the surface of the membrane material, and remove pollutants in real time to reduce secondary pollution.
[0011] Preferably, a filter screen is provided in the middle of the air inlet hole; the filter screen is fixedly connected to the middle of the air inlet hole; the above structure can effectively reduce dust and impurities from entering the upper pressure roller with the airflow, and reduce corrosion and wear caused by the accumulation of dust and impurities inside the upper pressure roller.
[0012] Preferably, an elastic cloth is fixed to the middle of the two sliding rings; the elastic cloth is disposed outside the spring; the above structure can effectively prevent dust and impurities in the external environment from directly contacting the spring surface, reducing the corrosion and wear caused by long-term attached dust and impurities on the spring surface.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The elastic pressure roller for processing the brightness enhancement film described in this utility model can directly heat and cool the surface of the brightness enhancement film during the processing process through the above structure. Controlling the surface temperature of the upper pressure roller can keep the film material within the optimal temperature range during processing, reduce structural deformation caused by uneven temperature, effectively increase the uniformity of the microprism structure forming on the surface of the brightness enhancement film, and preset the process during the brightness enhancement film processing to reduce the decline in the quality of the brightness enhancement film caused by temperature fluctuations during processing.
[0015] 2. The elastic pressure roller for brightening film processing described in this utility model can adjust the pressure in real time according to the film material condition through the above structure, so that the upper pressure roller can automatically adjust its position according to the thickness and undulation of the film material to achieve dynamic pressure compensation. Furthermore, the spring provides elastic buffering to absorb the vibration and impact generated when the upper pressure roller moves, thereby reducing the pressure fluctuations caused by the rapid sliding of the upper pressure roller. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the top plate structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the adjustment component in this utility model;
[0020] Figure 4 This is a schematic diagram of the temperature control component in this utility model;
[0021] Figure 5 This is a schematic diagram of the cleaning component in this utility model.
[0022] In the diagram: 1. Base; 10. Fixing frame; 11. Guide roller; 12. Upper pressure roller; 13. Top plate; 14. Lower pressure roller; 2. Adjustment assembly; 21. Slide groove; 22. Slider; 23. Fixing shaft; 24. First fixing ring; 25. First connecting rod; 26. Sliding ring; 27. First support rod; 28. Spring; 3. Temperature control assembly; 30. First hose; 31. Rotating seat; 32. Exhaust box; 33. Exhaust pipe; 34. Exhaust hole; 35. Heating rod; 36. Water storage pipe; 37. Second hose; 38. Water pump; 39. Heat-conducting plate; 301. Connecting box; 302. Air inlet; 4. Cleaning assembly; 41. Second support rod; 42. Second fixing ring; 43. First fixing rod; 44. Second connecting rod; 45. Cleaning roller; 5. Second fixing rod; 51. Scraper box; 6. Filter screen; 7. Elastic cloth. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 5As shown, the elastic pressure roller for brightening film processing in this embodiment of the present invention includes a base 1; a fixed frame 10 is fixedly connected to the top of the base 1; a plurality of guide rollers 11 are installed in the middle of the fixed frame 10; an upper pressure roller 12 and a lower pressure roller 14 are installed in the middle of the fixed frame 10; the upper pressure roller 12 and the lower pressure roller 14 are disposed at the ends of the fixed frame 10; a top plate 13 is fixedly connected to the top of the fixed frame 10; an adjustment component 2 is provided at the end of the upper pressure roller 12; a temperature control component 3 is installed in the middle of the upper pressure roller 12; a cleaning component 4 is provided at the end of the fixed frame 10; the temperature control component 3 includes two rotating seats 31; the rotating seats 31 are rotatably connected to the ends of the upper pressure roller 12; the two rotating seats 31 are arranged opposite each other; the rotating seats 31 are disposed at the ends of the fixed shaft 23; one of them A connecting box 301 is fixedly connected to the middle of one rotating seat 31; multiple exhaust pipes 33 are fixedly connected to the middle of the connecting box 301; the multiple exhaust pipes 33 are equidistantly distributed; multiple exhaust holes 34 are opened in the middle of the exhaust pipes 33; a heating rod 35 is installed in the middle of the exhaust pipes 33; a water storage pipe 36 is fixedly connected to the middle of another rotating seat 31; a heat-conducting plate 39 is fixedly connected to the middle of the water storage pipe 36; a first flexible hose 30 and a second flexible hose 37 are respectively fixedly connected to the middle of the two rotating seats 31; the end of the first flexible hose 30 is located in the middle of the connecting box 301; an exhaust box 32 is installed at the end of the first flexible hose 30; an air inlet 302 is opened on the side wall of the exhaust box 32; the middle of the exhaust box 32 penetrates the side wall of the top plate 13; a water pump 38 is installed at the end of the second flexible hose 37.During operation, the brightness enhancement film is first passed between the upper pressure roller 12 and the top plate 13. The upper pressure roller 12 is adjusted using the adjusting component 2, and the lower pressure roller 14 conveys the brightness enhancement film. The temperature control component 3 controls the temperature of the film passing through the upper pressure roller 12. The guide roller 11 guides the film to the processing position. When the upper pressure roller 12 is adjusted elastically, the first hose 30 and the second hose 37 bend as the upper pressure roller 12 moves. When heating is required during the processing of the brightness enhancement film between the upper pressure roller 12 and the lower pressure roller 14, the heating rod 35 and the exhaust box 32 are turned on. The surface of the heating rod 35 continuously generates heat, and air is exhausted from the exhaust box 32 to the middle of the first hose 30. The airflow enters the connecting box 301 through the first hose 30 and is discharged into multiple exhaust pipes 33. After being heated by the heating rod 35, the airflow is discharged through multiple exhaust holes 34. The heat accumulates in the middle of the upper pressure roller 12 and is transferred to the upper pressure roller 12. The surface of the brightening film is heated as it passes over the surface. When the brightening film needs to be cooled, the water pump 38 is connected to a water source and turned on. The water flows into the second hose 37 and then into the water storage pipe 36, where it is stored. The low temperature of the water flows through the heat-conducting plate 39 and is guided to the surface of the exhaust pipe 33. The exhaust box 32 is then opened, and the airflow is directed to the middle of the exhaust pipe 33, discharging the low-temperature airflow into the upper pressure roller 12, thereby cooling the brightening film. The water in the water storage pipe 36 is heated and then discharged by the water pump 38, with fresh cold water added. This structure allows for direct heating and cooling of the surface of the brightening film during processing. Controlling the surface temperature of the upper pressure roller 12 keeps the film material within the optimal temperature range during processing, reducing structural deformation caused by uneven temperature. This effectively increases the uniformity of the microprism structure forming on the surface of the brightening film and allows for pre-setting during processing, reducing temperature fluctuations that could lead to a decrease in the quality of the brightening film.
[0025] like Figure 3 and Figure 4As shown, the adjustment assembly 2 includes two slide grooves 21; the two slide grooves 21 are formed on the inner side wall of the fixed frame 10; a slider 22 is slidably connected to the middle of the slide groove 21; a fixed shaft 23 is fixedly connected to the middle of the slider 22; a first fixed ring 24 is fixedly connected to the middle of the fixed shaft 23; a first connecting rod 25 is fixedly connected to the middle of the two first fixed rings 24; two sliding rings 26 are slidably connected to the middle of the first connecting rod 25; a spring 28 is fixedly connected between the two sliding rings 26; a first support rod 27 is hinged to the middle of the sliding rings 26; the end of the first support rod 27 is hinged to the middle of the top plate 13; during operation, when the brightening film is processed between the upper pressure roller 12 and the lower pressure roller 14, the upper pressure roller 12 adjusts according to the thickness and undulation of the brightening film material. When the upper pressure roller 12 adapts to the film material... When moving upward, the fixed shaft 23 slides along the slider 22 in the middle of the groove 21. When the upper pressure roller 12 moves upward, the first connecting rod 25 applies pressure to the first support rod 27. The first support rod 27 rotates in the middle of the sliding ring 26 and the top plate 13. At the same time, the two sliding rings 26 slide towards the center position in the middle of the first connecting rod 25. When the two sliding rings 26 move, the spring 28 elastically contracts, so that the upper pressure roller 12 can be elastically adjusted. Through the above structure, the pressure can be adjusted in real time according to the state of the film material, so that the upper pressure roller 12 can automatically adjust its position according to the thickness and undulation of the film material, realizing dynamic pressure compensation. In addition, the spring 28 provides elastic buffering to absorb the vibration and impact generated when the upper pressure roller 12 moves, reducing the pressure fluctuations generated by the rapid sliding of the upper pressure roller 12.
[0026] like Figure 1 , Figure 2 , Figure 5 As shown, the cleaning assembly 4 includes two second support rods 41; the second support rods 41 are fixed to the ends of the guide roller 11; two second fixing rings 42 are rotatably connected to the middle of the second support rods 41; a first fixing rod 43 is fixed to the middle of the second fixing ring 42; a second connecting rod 44 is fixed to the ends of the two first fixing rods 43; a cleaning roller 45 is rotatably connected to the middle of the second connecting rod 44; during operation, when the brightening film enters between the adjusting assembly 2 and the lower pressure roller 14, it first passes between the two cleaning rollers 45, and the cleaning rollers 45 are in close contact with the film. As the film moves, the cleaning rollers 45... 5. The second connecting rod 44 rotates in the middle. When the brightening film moves and applies pressure to the cleaning roller 45, the cleaning roller 45 rotates slightly in the middle of the second support rod 41 through the first fixing rod 43. A torsion spring is provided between the second fixing ring 42 and the second support rod 41. When there is no pressure, the cleaning roller 45 is reset by the torsion spring. The above structure can effectively remove the small particles on the surface of the film material, reduce the embedding of small particles on the surface of the film material or the roller surface, reduce the scratching of the film material surface by residual small particles under the pressure of the upper pressure roller 12, improve the flatness of the film material surface, and reduce the contamination of the film material and roller.
[0027] like Figure 5As shown, a second fixing rod 5 is fixedly connected to the middle of the second connecting rod 44; a scraper box 51 is fixedly connected to the ends of the two second fixing rods 5; the side wall of the second fixing rod 5 is in contact with the cleaning roller 45; during operation, when the cleaning roller 45 rotates with the brightening film, the surface of the cleaning roller 45 is scraped by one side of the scraper box 51, and the impurities cleaned by the cleaning roller 45 are scraped off and collected by the scraper box 51. The above structure can collect the tiny particles after the cleaning roller 45, reduce the accumulation of too many pollutants on the surface of the cleaning roller 45, and prevent the tiny particles from re-attaching to the film surface, thereby removing pollutants in real time and reducing secondary pollution.
[0028] like Figure 2 As shown, a filter screen 6 is provided in the middle of the air inlet 302; the filter screen 6 is fixed to the middle of the air inlet 302; during operation, when the external airflow passes through the air inlet 302 and enters the exhaust box 32 and is discharged into the middle of the first hose 30, the filter screen 6 intercepts dust and impurities in the external air. The above structure can effectively reduce the amount of dust and impurities entering the upper pressure roller 12 with the airflow, and reduce the corrosion and wear caused by the accumulation of dust and impurities inside the upper pressure roller 12.
[0029] like Figure 2 As shown, an elastic cloth 7 is fixedly connected to the middle of the two sliding rings 26; the elastic cloth 7 is set outside the spring 28; during operation, when the spring 28 elastically extends and retracts, the elastic cloth 7 is simultaneously stretched along with the spring 28. The elastic cloth 7 prevents external dust and impurities from directly contacting the surface of the spring 28. Through the above structure, it can effectively prevent dust and impurities in the external environment from directly contacting the surface of the spring 28, reducing the corrosion and wear caused by long-term attached dust and impurities on the surface of the spring 28.
[0030] During operation, the brightness enhancement film is first passed between the upper pressure roller 12 and the top plate 13. The upper pressure roller 12 is adjusted using the adjusting component 2, and the lower pressure roller 14 conveys the brightness enhancement film. The temperature control component 3 controls the temperature of the film passing through the upper pressure roller 12. The film is then guided by the guide roller 11 to the processing position. When the upper pressure roller 12 is adjusted elastically, the first hose 30 and the second hose 37 bend as the upper pressure roller 12 moves. When heating is required during the processing of the brightness enhancement film between the upper pressure roller 12 and the lower pressure roller 14, the heating rod 35 and the exhaust box 32 are turned on. The surface of the heating rod 35 continuously generates heat, and air is exhausted from inside the exhaust box 32 to the middle of the first hose 30. The airflow passes through the first hose 30 and enters the connecting box 301. The airflow enters through multiple exhaust pipes 33, is heated by the heating rod 35, and is discharged through multiple exhaust holes 34. Heat accumulates in the middle of the upper pressure roller 12 and is transferred to its surface, heating the brightening film as it passes. When the brightening film needs cooling, the water pump 38 is connected to a water source and turned on. Water flows into the second hose 37 and then into the water storage pipe 36, where it is stored. The low temperature water is guided through the heat-conducting plate 39 to the surface of the exhaust pipe 33. The exhaust box 32 is then opened, and airflow is directed to the middle of the exhaust pipe 33, discharging the low-temperature airflow into the upper pressure roller 12, thus cooling the brightening film. The water in the water storage pipe 36 is heated and then discharged by the water pump 38, with fresh cold water added. When the brightening film passes the upper pressure roller 12 and the lower... When processing is performed between the pressure rollers 14, the upper pressure roller 12 adjusts according to the thickness and undulation of the brightening film. When the upper pressure roller 12 moves upward to adapt to the film, the fixed shaft 23 slides in the middle of the slide groove 21 along with the slider 22. When the upper pressure roller 12 moves upward, the first connecting rod 25 applies pressure to the first support rod 27. The first support rod 27 rotates in the middle of the sliding ring 26 and the top plate 13. At the same time, the two sliding rings 26 slide towards the center position in the middle of the first connecting rod 25. When the two sliding rings 26 move, the spring 28 elastically contracts, causing the upper pressure roller 12 to adjust elastically. When the brightening film enters between the adjusting assembly 2 and the lower pressure roller 14, it first passes between the two cleaning rollers 45. The cleaning rollers 45 are in close contact with the film. As the film moves, the cleaning rollers 45 are in the middle of the second connecting rod 44. When the brightening film moves and applies pressure to the cleaning roller 45, the cleaning roller 45 rotates slightly in the middle of the second support rod 41 via the first fixing rod 43. A torsion spring is provided between the second fixing ring 42 and the second support rod 41. When there is no pressure, the cleaning roller 45 is reset by the torsion spring. When the cleaning roller 45 rotates with the brightening film, the surface of the cleaning roller 45 is scraped by one side of the scraper box 51. The scraper box 51 scrapes off and collects the impurities cleaned by the cleaning roller 45. When the external airflow enters the exhaust box 32 through the air inlet 302 and is discharged into the middle of the first hose 30, the filter screen 6 intercepts the dust and impurities in the external air. When the spring 28 elastically extends and retracts, the elastic cloth 7 is simultaneously elastically stretched with the spring 28. The elastic cloth 7 prevents external dust and impurities from directly contacting the surface of the spring 28.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An elastic pressure roller for brightening film processing, comprising a base (1); characterized in that: The base (1) is fixedly connected to the top of a fixed frame (10); a plurality of guide rollers (11) are installed in the middle of the fixed frame (10); an upper pressure roller (12) and a lower pressure roller (14) are installed in the middle of the fixed frame (10); the upper pressure roller (12) and the lower pressure roller (14) are located at the ends of the fixed frame (10); a top plate (13) is fixedly connected to the top of the fixed frame (10); an adjustment component (2) is provided at the end of the upper pressure roller (12); a temperature control component (3) is installed in the middle of the upper pressure roller (12); and a cleaning component (4) is provided at the end of the fixed frame (10).
2. The elastic pressure roller for brightening film processing according to claim 1, characterized in that: The temperature control component (3) includes two rotating seats (31); the rotating seats (31) are rotatably connected to the end of the upper pressure roller (12); the two rotating seats (31) are arranged opposite each other; the rotating seats (31) are located at the end of the fixed shaft (23); a connecting box (301) is fixedly connected to the middle of one of the rotating seats (31); multiple exhaust pipes (33) are fixedly connected to the middle of the connecting box (301); the multiple exhaust pipes (33) are equidistantly distributed; multiple exhaust holes (34) are opened in the middle of the exhaust pipes (33); a heating rod (35) is installed in the middle of the exhaust pipes (33); A water storage pipe (36) is fixedly connected to the middle of another rotating seat (31); a heat-conducting plate (39) is fixedly connected to the middle of the water storage pipe (36); a first flexible hose (30) and a second flexible hose (37) are respectively fixedly connected to the middle of the two rotating seats (31); the end of the first flexible hose (30) is located in the middle of the connecting box (301); an exhaust box (32) is installed at the end of the first flexible hose (30); an air inlet hole (302) is opened on the side wall of the exhaust box (32); the middle of the exhaust box (32) penetrates the side wall of the top plate (13); a water pump (38) is installed at the end of the second flexible hose (37).
3. The elastic pressure roller for brightening film processing according to claim 1, characterized in that: The adjustment assembly (2) includes two slide grooves (21); the two slide grooves (21) are formed on the inner side wall of the fixed frame (10); a slider (22) is slidably connected in the middle of the slide groove (21); a fixed shaft (23) is fixedly connected in the middle of the slider (22); a first fixed ring (24) is fixedly connected in the middle of the fixed shaft (23); a first connecting rod (25) is fixedly connected in the middle of the two first fixed rings (24); two sliding rings (26) are slidably connected in the middle of the first connecting rod (25); a spring (28) is fixedly connected between the two sliding rings (26); a first support rod (27) is hinged in the middle of the sliding ring (26); the end of the first support rod (27) is hinged in the middle of the top plate (13).
4. The elastic pressure roller for brightening film processing according to claim 1, characterized in that: The cleaning assembly (4) includes two second support rods (41); the second support rods (41) are fixed to the end of the guide roller (11); two second fixing rings (42) are rotatably connected to the middle of the second support rods (41); a first fixing rod (43) is fixed to the middle of the second fixing rings (42); a second connecting rod (44) is fixed to the end of the two first fixing rods (43); a cleaning roller (45) is rotatably connected to the middle of the second connecting rod (44).
5. The elastic pressure roller for brightening film processing according to claim 4, characterized in that: A second fixing rod (5) is fixedly connected to the middle of the second connecting rod (44); a scraper box (51) is fixedly connected to the ends of the two second fixing rods (5); the side wall of the second fixing rod (5) is in contact with the cleaning roller (45).
6. The elastic pressure roller for brightening film processing according to claim 2, characterized in that: A filter screen (6) is provided in the middle of the air inlet (302); the filter screen (6) is fixedly connected to the middle of the air inlet (302).
7. The elastic pressure roller for brightening film processing according to claim 3, characterized in that: An elastic cloth (7) is fixed to the middle of the two sliding rings (26); the elastic cloth (7) is disposed outside the spring (28).