Impressing production device for reflective film with microprism structure

Abstract

An imprint production device for a reflective film with a microprism structure belongs to the technical field of optical material processing and comprises a fixed frame, a heating station is fixedly mounted in the fixed frame, a cooling station is fixedly mounted in the fixed frame, and a first protection frame is fixedly mounted at the top of the heating station; the temperature of the corresponding part of the annular belt mold and the temperature of the pattern lattice are increased to be higher than the glass transition temperature of the film through heating of the heating station, meanwhile, the telescopic rod drives the pressing plate to move downwards through driving of the electric push rod, the pressing plate is pressed above the film, and the film can be rapidly formed through pressing of the pressing plate and heating of the heating station. Then, the material is moved to the top of a cooling station, the temperature of the heated part is reduced to be lower than the glass transition temperature, the material subjected to floating carving modeling is rapidly cooled, the thin film is solidified, then the thin film is stripped from the tool, and therefore the purposes of increasing the forming speed of the thin film and improving the production efficiency are achieved. And the production efficiency of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical material processing, and specifically to an imprinting production device for a microprism-structured reflective film. Background Art

[0002] In the field of optical material processing, especially the technology of engraving precise optical patterns on transparent thermoplastic films or laminated films, has always been the focus of research. Such technologies are widely used in the manufacture of products such as reflective films and optical sensors. With the progress of technology, the requirements for the precision and performance of optical materials are getting higher and higher, and traditional processing methods are difficult to meet the needs of modern industry. Therefore, developing new processing methods and technologies has become an important topic in this field.

[0003] At present, during the microprism forming process of the film, it needs to be heated above the glass transition temperature in a heating station, and the suitable temperature is 425 - 475°F, that is, 218 - 246°C, and then cooled below the glass transition temperature in a cooling station, that is, it needs to be cooled to 180°F, equivalent to below 82°C. The temperature difference between heating and cooling is large, and the film has a large specific heat, so the heating and cooling time is relatively long. For a certain length of annular belt-shaped mold, this will inevitably affect its production speed and lead to a reduction in its working efficiency. Based on the existing technical deficiencies, the present invention designs an imprinting production device for a microprism-structured reflective film. Summary of the Invention

[0004] The present invention provides an imprinting production device for a microprism-structured reflective film, which has the advantage of accelerating the film forming speed and improving production efficiency, and solves the problem of relatively long heating and cooling time and slow production speed.

[0005] The present invention provides the following technical solution: An imprinting production device for a microprism-structured reflective film, including a fixed frame. Inside the fixed frame, a heating station is fixedly installed, and a cooling station is fixedly installed. On the top of the heating station, a first protective frame is fixedly installed, and on the top of the cooling station, a second protective frame is fixedly installed. On the top of the first protective frame, a hot pressing structure is fixedly installed; the hot pressing structure includes a fixed ring rod, an annular belt mold, and two first support rods. Inside the fixed ring rod, an electric push rod is fixedly installed. The fixed ring rod is fixedly connected to the first protective frame. The annular belt mold is arranged on the top of the heating station. One end of the telescopic rod of the electric push rod is fixedly installed with a pressing plate. Two first support rods are arranged on one side of the annular belt mold, and a first auxiliary roller is rotatably installed between the two first support rods.

[0006] As a preferred technical solution of the present invention, on one side of the outer surface of the fixed frame, an extension frame is fixedly installed. On both sides of the outer surface of the extension frame, a plurality of second support rods are fixedly installed, and a second auxiliary roller is rotatably installed between the plurality of second support rods.

[0007] As a preferred technical solution of the present invention, a coating structure is fixedly installed inside the extension frame, and the coating structure includes a photosensitive resin pool which is fixed inside the extension frame.

[0008] As a preferred technical solution of the present invention, a first mounting ring is fixedly installed on one side of the outer surface of the photosensitive resin pool, and a motor is fixedly installed inside the first mounting ring.

[0009] As a preferred technical solution of the present invention, a roller is fixedly installed at one end of the output shaft of the motor, and the roller is rotationally connected to the photosensitive resin pool.

[0010] As a preferred technical solution of the present invention, three groups of rotating rods are fixedly installed on the outer surface of the roller, a mounting frame is fixedly installed between the three groups of rotating rods, and a brush plate is fixedly installed inside the three mounting frames.

[0011] As a preferred technical solution of the present invention, a drying structure is fixedly installed inside the extension frame, and the drying structure includes a drying cover and a fixing plate. A film passing groove is formed on the outer surface of the drying cover, and a hinged door is hingedly installed on the outer surface of the drying cover.

[0012] As a preferred technical solution of the present invention, a ventilation opening is formed on one side of the fixing plate, and two second mounting rings are fixedly installed on one side of the outer surface of the fixing plate, and a blower is fixedly installed inside the two second mounting rings.

[0013] As a preferred technical solution of the present invention, side rods are fixedly installed on both sides of the outer surface of the fixed frame, and a first winding roller is rotatably installed between the two side rods.

[0014] As a preferred technical solution of the present invention, straight rods are fixedly installed on both sides of the outer surface of the extension frame, and a second winding roller is rotatably installed between the two straight rods.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. For the imprinting production device of the microprism structure reflective film, during the imprinting production process, through the heating station, cooling station, first protection frame, second protection frame, and hot pressing structure, after the film passes through the coating structure and the drying structure and enters the first protection frame, it is placed on the top of the annular belt mold. At this time, through the heating of the heating station, the temperature of the corresponding part of the annular belt mold and the pattern rises above the glass transition temperature of the film. At the same time, driven by the electric push rod, its telescopic rod drives the pressing plate to move downward, so that it presses on the film. Through the pressing of the pressing plate and the heating of the heating station, the film can be quickly formed. Subsequently, by moving it to the top of the cooling station, the temperature of the heated part drops below the glass transition temperature, and the material with embossed styling is quickly cooled, thereby curing the film. Then the film is peeled off from the tool, thus achieving the purpose of accelerating the forming speed of the film and improving production efficiency, and improving the production efficiency of the device; 2. The imprinting production device for the microprism structure reflective film, through the coating structure, when the device imprints the film, the film wound on the second winding roller passes through the second auxiliary roller, the first protection frame, the second protection frame, and then is wound by the first winding roller. When the device is started, driven by the motor, its output shaft drives the roller to rotate, so that the rotating rod drives the brush plate to rotate inside the photosensitive resin pool, so that the surface of the brush plate is contaminated with photosensitive resin and then rotates to coat it on the surface of the film, forming a laminated film, thereby improving the strength of the device in the subsequent imprinting process; 3. The imprinting production device for the microprism structure reflective film, through the drying structure, after the photosensitive resin is coated on the surface of the film, it enters the drying hood through the film passing slot. Then, by starting two fans, the wind generated by them enters the inside of the drying hood through the ventilation openings, thereby drying the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the structure of the first winding roller of the present invention; Figure 3 It is a schematic diagram of the structure of the annular belt mold of the present invention; Figure 4 It is a schematic diagram of the structure of the second auxiliary roller of the present invention; Figure 5 It is a schematic diagram of the structure of the ventilation opening of the present invention; Figure 6 It is a schematic diagram of the coating structure of the present invention; Figure 7 It is a schematic diagram of the structure of the film passing slot of the present invention; Figure 8 It is a schematic diagram of the structure of the fan of the present invention.

[0017] In the figure: 1. Fixed frame; 2. Heating station; 3. Cooling station; 4. First protection frame; 5. Second protection frame; 6. Hot pressing structure; 61. Fixed ring rod; 62. Electric push rod; 63. Pressing plate; 64. Annular belt mold; 65. First support rod; 66. First auxiliary roller; 7. Extension frame; 71. Second support rod; 72. Second auxiliary roller; 8. Coating structure; 81. Photosensitive resin pool; 82. First mounting ring; 83. Motor; 84. Roller; 85. Rotating rod; 86. Mounting frame; 87. Brush plate; 9. Drying structure; 91. Drying hood; 92. Film passing slot; 93. Hinged door; 94. Fixed plate; 95. Ventilation opening; 96. Second mounting ring; 97. Fan; 10. Side rod; 11. First winding roller; 12. Straight rod; 13. Second winding roller. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1-8 , a hot embossing production device for a microprism structure reflective film, which includes a fixed frame 1. Inside the fixed frame 1, a heating station 2 is fixedly installed. Inside the fixed frame 1, a cooling station 3 is fixedly installed. On the top of the heating station 2, a first protection frame 4 is fixedly installed. On the top of the cooling station 3, a second protection frame 5 is fixedly installed. On the top of the first protection frame 4, a hot pressing structure 6 is fixedly installed; the hot pressing structure 6 includes a fixed ring rod 61, an annular belt mold 64, and two first support rods 65. The fixed ring rod 61 is fixedly connected to the first protection frame 4. Inside the fixed ring rod 61, an electric push rod 62 is fixedly installed. One end of the telescopic rod of the electric push rod 62 is fixedly installed with a pressing plate 63. The annular belt mold 64 is arranged on the top of the heating station 2. Two first support rods 65 are arranged on one side of the annular belt mold 64. Between the two first support rods 65, a first auxiliary roller 66 is rotatably installed.

[0020] Please refer to Figure 4-6 , on one side of the outer surface of the fixed frame 1, an extension frame 7 is fixedly installed. On both sides of the outer surface of the extension frame 7, a plurality of second support rods 71 are fixedly installed. Between the plurality of second support rods 71, a second auxiliary roller 72 is rotatably installed. Inside the extension frame 7, a coating structure 8 is fixedly installed. The coating structure 8 includes a photosensitive resin pool 81, and the photosensitive resin pool 81 is fixed inside the extension frame 7. On one side of the outer surface of the photosensitive resin pool 81, a first mounting ring 82 is fixedly installed. Inside the first mounting ring 82, a motor 83 is fixedly installed. One end of the output shaft of the motor 83 is fixedly installed with a roller 84, and the roller 84 is rotatably connected to the photosensitive resin pool 81. On the outer surface of the roller 84, three groups of rotating rods 85 are fixedly installed. Between the three groups of rotating rods 85, a mounting frame 86 is fixedly installed. Inside the three mounting frames 86, a brush plate 87 is fixedly installed.

[0021] When the device is started, driven by the motor 83, its output shaft drives the roller 84 to rotate, so that the rotating rod 85 drives the brush plate 87 to rotate inside the photosensitive resin pool 81, so that the surface of the brush plate 87 is contaminated with photosensitive resin and then rotates to coat it on the surface of the film, forming a laminated film, which can improve the strength of the device in the subsequent hot embossing process.

[0022] Please refer to Figure 5-8, a drying structure 9 is fixedly installed inside the extension frame 7. The drying structure 9 includes a drying cover 91 and a fixing plate 94. A film passing groove 92 is formed on the outer surface of the drying cover 91, and a hinged door 93 is hingedly installed on the outer surface of the drying cover 91. A ventilation opening 95 is formed on one side of the fixing plate 94, and two second mounting rings 96 are fixedly installed on one side of the outer surface of the fixing plate 94. A blower 97 is fixedly installed inside the two second mounting rings 96. Side rods 10 are fixedly installed on both sides of the outer surface of the fixed frame 1, and a first winding roller 11 is rotatably installed between the two side rods 10. Straight rods 12 are fixedly installed on both sides of the outer surface of the extension frame 7, and a second winding roller 13 is rotatably installed between the two straight rods 12.

[0023] After the photosensitive resin is coated on the film surface, it enters the drying cover 91 through the film passing groove 92. Subsequently, by starting the two blowers 97, the wind generated by them enters the inside of the drying cover 91 through the ventilation opening 95, thereby drying the film.

[0024] Working principle: When the imprinting production device for the microprism structure reflective film is in use, first, the film wound on the second winding roller 13 passes through the second auxiliary roller 72, the first protection frame 4, and the second protection frame 5, and then is wound by the first winding roller 11. When the device is started, driven by the motor 83, its output shaft drives the roller 84 to rotate, so that the rotating rod 85 drives the brush plate 87 to rotate inside the photosensitive resin pool 81, so that the surface of the brush plate 87 is contaminated with the photosensitive resin and then rotates to coat it on the film surface to form a laminated film, which can improve the strength of the device in the subsequent imprinting process. Then, after the photosensitive resin is coated on the film surface, it enters the drying cover 91 through the film passing groove 92. Subsequently, by starting the two blowers 97, the wind generated by them enters the inside of the drying cover 91 through the ventilation opening 95, thereby drying the film. Finally, after the film enters the first protection frame 4, it is placed on the top of the annular belt mold 64. At this time, by heating with the heating station 2, the temperature of the corresponding parts of the annular belt mold 64 and the pattern rises above the glass transition temperature of the film. At the same time, driven by the electric push rod 62, its telescopic rod drives the pressing plate 63 to move downward, so that it presses on the film. Through the pressing of the pressing plate 63 and the heating of the heating station 2, the film can be quickly formed. Subsequently, by moving it to the top of the cooling station 3, the temperature of the heated part drops below the glass transition temperature, and the material with the floating engraving shape is quickly cooled, so that the film is cured, and then the film is peeled off from the tool.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An imprinting production device for a microprism structure reflective film, comprising a fixed frame (1), characterized in that: Inside the fixed frame (1), a heating station (2) is fixedly installed, and a cooling station (3) is fixedly installed inside the fixed frame (1). A first protection frame (4) is fixedly installed on the top of the heating station (2), and a second protection frame (5) is fixedly installed on the top of the cooling station (3). A hot pressing structure (6) is fixedly installed on the top of the first protection frame (4); The hot pressing structure (6) includes a fixed ring rod (61), an annular belt mold (64), and two first support rods (65). The fixed ring rod (61) is fixedly connected to the first protection frame (4). An electric push rod (62) is fixedly installed inside the fixed ring rod (61). One end of the telescopic rod of the electric push rod (62) is fixedly installed with a pressing plate (63). The annular belt mold (64) is arranged on the top of the heating station (2). The two first support rods (65) are arranged on one side of the annular belt mold (64). A first auxiliary roller (66) is rotatably installed between the two first support rods (65).

2. The imprinting production device for the micro-prism structured reflective film according to claim 1, wherein: On one side of the outer surface of the fixed frame (1), an extension frame (7) is fixedly installed. On both sides of the outer surface of the extension frame (7), a plurality of second support rods (71) are fixedly installed. A second auxiliary roller (72) is rotatably installed between the plurality of second support rods (71).

3. The imprinting production device for the microprism structure reflective film according to claim 2, wherein: A coating structure (8) is fixedly installed inside the extension frame (7). The coating structure (8) includes a photosensitive resin pool (81), and the photosensitive resin pool (81) is fixed inside the extension frame (7).

4. The imprinting production device for the microprism structure reflective film according to claim 3, characterized in that: On one side of the outer surface of the photosensitive resin pool (81), a first mounting ring (82) is fixedly installed. Inside the first mounting ring (82), a motor (83) is fixedly installed.

5. The imprinting production device for the microprism structure reflective film according to claim 4, wherein: One end of the output shaft of the motor (83) is fixedly installed with a roller (84), and the roller (84) is rotatably connected to the photosensitive resin pool (81).

6. The imprinting production device for the reflective film with a microprism structure according to claim 5, characterized in that: On the outer surface of the roller (84), three groups of rotating rods (85) are fixedly installed. An installation frame (86) is fixedly installed between the three groups of rotating rods (85). Inside the three installation frames (86), a brush plate (87) is fixedly installed.

7. The imprinting production device for the retroreflective film with a microprism structure according to claim 2, wherein: A drying structure (9) is fixedly installed inside the extension frame (7). The drying structure (9) includes a drying cover (91) and a fixing plate (94). A film passing slot (92) is formed on the outer surface of the drying cover (91). A hinged door (93) is hingedly installed on the outer surface of the drying cover (91).

8. The imprinting production device for the microprism structure reflective film according to claim 7, characterized in that: On one side of the fixing plate (94), a ventilation opening (95) is formed. On one side of the outer surface of the fixing plate (94), two second mounting rings (96) are fixedly installed. Inside the two second mounting rings (96), a blower (97) is fixedly installed.

9. The imprinting production device for the microprism structure reflective film according to claim 1, characterized in that: On both sides of the outer surface of the fixed frame (1), side rods (10) are fixedly installed. A first winding roller (11) is rotatably installed between the two side rods (10).

10. The imprinting production device for the micro-prism structure reflective film according to claim 2, characterized in that: On both sides of the outer surface of the extension frame (7), straight rods (12) are fixedly installed. A second winding roller (13) is rotatably installed between the two straight rods (12).

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