UV molding press

Abstract

The utility model discloses a UV (ultraviolet) molding press which comprises a rack, a coating roller, a plate roller and a rear driving roller are sequentially and rotatably arranged on the rack along a film running direction, a UV light semi-curing station is arranged between the coating roller and the plate roller, a UV light curing station is arranged on the periphery of the plate roller, and a UV light reinforcing curing station is arranged between the plate roller and the rear driving roller. The UV molding press has the advantages of being compact in structure and high in integration level, and the production efficiency and the product quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production equipment, in particular to a UV molding machine. Background Art

[0002] With the rapid development of the economy, the circulation of goods has become increasingly widespread. A large number of goods need to be packaged in bags before entering the market. With the development of the printing and packaging industry, people demand high-end, exquisite, environmentally friendly, and personalized product packaging. UV-curable film is a film made by applying a special coating to the surface of a PET film substrate and curing it using ultraviolet (UV) technology. It can improve the gloss and wear resistance of printed products. In the existing UV-curable film production process, the film material passes directly through a molding mechanism after coating, thereby embossing a laser-effect pattern onto the film material. However, due to the high fluidity of the coating on the film material, the printed pattern on some films may have positional deviations, affecting product quality and presenting certain limitations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a UV molding machine with a compact structure, high integration, and the ability to effectively improve production efficiency and product quality.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A UV molding machine includes a frame, on which a coating roller, a plate roller and a rear drive roller are arranged to rotate in sequence along the film feeding direction, a UV light semi-curing station for irradiating the film with UV light is arranged between the coating roller and the plate roller, a UV light curing station for irradiating the film with UV light is arranged on the periphery of the plate roller, and a UV light enhanced curing station for irradiating the film with UV light is arranged between the plate roller and the rear drive roller.

[0006] As a further improvement of the above technical solution:

[0007] The coating roller is provided with a sealing scraper assembly for applying UV glue. The sealing scraper assembly includes a glue chamber and a circulating glue supply system. A first scraper and a second scraper are respectively provided on both sides of the glue chamber to abut against the coating roller.

[0008] A first pressure roller is swingably provided on the frame via a first swing mechanism. The first swing mechanism includes a first swing plate and a first telescopic cylinder. The first pressure roller is rotatably provided at one end of the first swing plate. The other end of the first swing plate is hinged to the frame. The first telescopic cylinder drives the first swing plate to swing so that the first pressure roller approaches or moves away from the coating roller.

[0009] A second pressure roller is movably provided on the frame via a moving mechanism, and the moving mechanism includes a sliding connection assembly, a bearing seat, a support and a second telescopic cylinder. The second pressure roller is rotatably provided on the support, and the support is fixedly connected to the bearing seat. The bearing seat is slidably connected to the frame via the sliding connection assembly, and the second telescopic cylinder drives the bearing seat to move so that the second pressure roller approaches or moves away from the plate roller.

[0010] A cooling roller is rotatably arranged on the bearing seat, and the cooling roller abuts against the second pressing roller.

[0011] A third pressure roller is swingably provided on the frame via a second swing mechanism, the second swing mechanism includes a second swing plate and a third telescopic cylinder, the third pressure roller is rotatably provided on one end of the second swing plate, the other end of the second swing plate is hinged to the frame, and the third telescopic cylinder drives the second swing plate to swing so that the third pressure roller approaches or moves away from the plate roller.

[0012] A fourth pressure roller is swingably provided on the frame via a third swing mechanism, wherein the third swing mechanism includes a third swing plate and a fourth telescopic cylinder. The fourth pressure roller is rotatably provided on one end of the third swing plate, and the other end of the third swing plate is hinged to the frame. The fourth telescopic cylinder drives the third swing plate to swing so that the fourth pressure roller approaches or moves away from the rear driving roller.

[0013] A plurality of guide rollers are rotatably arranged on the frame.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The UV molding machine of the present invention comprises a coating roller, a plate roller and a rear driving roller, wherein a UV light semi-curing station is provided between the coating roller and the plate roller, and the film is irradiated with UV light for the first time after the coating process and before the molding process, so that the UV glue on the film is in a semi-cured state, a UV light curing station is provided on the periphery of the plate roller, and the film is irradiated with UV light for the second time during the molding process, so that the UV glue on the film is cured when the pattern is printed, a UV light enhanced curing station is provided between the plate roller and the rear driving roller, and the film is irradiated with UV light for the third time after the molding process, so that the UV glue and the printed pattern on the film are enhanced and cured, so that the laser pattern on the plate roller can be accurately transferred to the film, and the utility model has the advantages of compact structure, high integration and strong continuous working ability, and can effectively improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the film flow of the UV molding machine.

[0017] Figure 2 Schematic diagram of the working principle of the sealing scraper assembly.

[0018] Figure 3 It is a structural diagram of the UV molding machine.

[0019] Figure 4 Schematic diagram of the internal structure of the UV molding machine.

[0020] Figure 5 It is a structural schematic diagram of the first swing mechanism and the third swing mechanism.

[0021] Figure 6 It is a structural diagram of the moving mechanism and the second swing mechanism.

[0022] Legend:

[0023] 1. Frame; 2. Coating roller; 3. Plate roller; 4. Rear drive roller; 5. UV light semi-curing station; 6. UV light curing station; 7. UV light enhanced curing station; 8. Sealing scraper assembly; 801. Glue chamber; 802. Circulating glue supply system; 803. First scraper; 804. Second scraper; 9. First swing mechanism; 901. First pendulum plate; 902. First telescopic cylinder; 10. First pressure roller; 11. Moving mechanism; 1101. Sliding connection assembly; 1102. Bearing seat; 1103. Support; 1104. Second telescopic cylinder; 12. Second pressure roller; 13. Cooling roller; 14. Second swing mechanism; 1401. Second pendulum plate; 1402. Third telescopic cylinder; 15. Third pressure roller; 16. Third swing mechanism; 1601. Third pendulum plate; 1602. Fourth telescopic cylinder; 17. Fourth pressure roller; 18. Guide roller. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 、 Figure 3 and Figure 4As shown, the UV molding machine of this embodiment includes a frame 1, on which a coating roller 2, a plate roller 3 and a rear driving roller 4 are arranged to rotate in sequence along the film-feeding direction, a UV light semi-curing station 5 for irradiating the film with UV light is arranged between the coating roller 2 and the plate roller 3, a UV light curing station 6 for irradiating the film with UV light is arranged on the periphery of the plate roller 3, and a UV light enhanced curing station 7 for irradiating the film with UV light is arranged between the plate roller 3 and the rear driving roller 4. The UV molding machine includes a coating roller 2, a plate roller 3 and a rear driving roller 4, wherein a UV light semi-curing station 5 is provided between the coating roller 2 and the plate roller 3, and the film is irradiated with UV light for the first time after the coating process and before the molding process, so that the UV glue on the film is in a semi-cured state, a UV light curing station 6 is provided on the periphery of the plate roller 3, and the film is irradiated with UV light for the second time during the molding process, so that the UV glue on the film is cured when the pattern is printed, a UV light enhanced curing station 7 is provided between the plate roller 3 and the rear driving roller 4, and the film is irradiated with UV light for the third time after the molding process, so that the UV glue and the printed pattern on the film are enhanced and cured, so that the laser pattern on the plate roller 3 can be accurately transferred to the film, which has the advantages of compact structure, high integration and strong continuous working ability, and can effectively improve production efficiency and product quality.

[0026] Specifically, in this embodiment, a UV light irradiation device is installed on the UV light semi-curing station 5, which performs the first UV light irradiation on the glue-coated surface of the film, two UV light irradiation devices are installed on the UV light curing station 6, which perform the second UV light irradiation on the non-glue-coated surface of the film, and a UV light irradiation device is installed on the UV light enhanced curing station 7, which performs the third UV light irradiation on the glue-coated surface of the film.

[0027] like Figure 2 As shown, preferably, a sealing scraper assembly 8 for applying UV glue is provided on the coating roller 2, and the sealing scraper assembly 8 includes a glue chamber 801 and a circulating glue supply system 802, and a first scraper 803 and a second scraper 804 are respectively provided on both sides of the glue chamber 801 for abutting contact with the coating roller 2. In this embodiment, a gravure is provided on the surface of the coating roller 2, and the glue cavity 801 of the sealing scraper assembly 8 is connected to the gravure on the surface of the coating roller 2. The circulating glue supply system 802 includes a glue tank and an air pump. The air pump drives the glue in the glue tank to flow into the glue cavity 801, so that the glue cavity 801 is filled with glue and maintains positive pressure, so that the glue in the glue cavity 801 can be applied to the coating roller 2. The excess glue in the glue cavity 801 flows back to the glue tank under pressure to form a circulating flow, reducing material waste. The first scraper 803 and the second scraper 804 are tightly fitted with the coating roller 2 to achieve a sealing effect. As the coating roller 2 rotates, the first scraper 803 can scrape the glue on the gravure flat and apply it evenly, and the second scraper 804 can hang up the residual glue on the coating roller 2.

[0028] like Figure 5 As shown, preferably, a first pressure roller 10 is swingably provided on the frame 1 through a first swing mechanism 9, the first swing mechanism 9 includes a first swing plate 901 and a first telescopic cylinder 902, the first pressure roller 10 is rotatably provided at one end of the first swing plate 901, the other end of the first swing plate 901 is hinged to the frame 1, and the first telescopic cylinder 902 drives the first swing plate 901 to swing so that the first pressure roller 10 approaches or moves away from the coating roller 2.

[0029] like Figure 6 As shown, preferably, a second pressure roller 12 is movably provided on the frame 1 through a moving mechanism 11, and the moving mechanism 11 includes a sliding connection component 1101, a bearing seat 1102, a support 1103 and a second telescopic cylinder 1104. The second pressure roller 12 is rotatably provided on the support 1103, and the support 1103 is fixedly connected to the bearing seat 1102. The bearing seat 1102 is slidably connected to the frame 1 through the sliding connection component 1101, and the second telescopic cylinder 1104 drives the bearing seat 1102 to move so that the second pressure roller 12 is close to or away from the plate roller 3. In this embodiment, the moving mechanism 11 includes a bearing seat 1102 and a support 1103 slidingly connected to both sides of the frame 1, and a second telescopic cylinder 1104 for pushing the bearing seat 1102 and the support 1103 to move horizontally. The second pressure roller 12 adjusts the distance between itself and the plate roller 3 through the moving mechanism 11, and can adapt to films of different thicknesses to play a tensioning role so that the film fits tightly with the plate roller 3, facilitating the transfer of the laser pattern on the plate roller 3 to the film, thereby improving product quality.

[0030] Preferably, a cooling roller 13 is rotatably provided on the bearing seat 1102, and the cooling roller 13 abuts against the second pressing roller 12. In this embodiment, the film coated with UV glue has a high temperature after being irradiated by UV light in the UV light semi-curing station 5. By providing the cooling roller 13, the second pressing roller 12 can be cooled, thereby cooling the film on the second pressing roller 12, thereby ensuring the product quality of the film.

[0031] Preferably, a third pressure roller 15 is swingably provided on the frame 1 through a second swing mechanism 14. The second swing mechanism 14 includes a second swing plate 1401 and a third telescopic cylinder 1402. The third pressure roller 15 is rotatably provided at one end of the second swing plate 1401. The other end of the second swing plate 1401 is hinged to the frame 1. The third telescopic cylinder 1402 drives the second swing plate 1401 to swing so that the third pressure roller 15 approaches or moves away from the plate roller 3.

[0032] Preferably, a fourth pressure roller 17 is swingably provided on the frame 1 through a third swing mechanism 16. The third swing mechanism 16 includes a third swing plate 1601 and a fourth telescopic cylinder 1602. The fourth pressure roller 17 is rotatably provided at one end of the third swing plate 1601. The other end of the third swing plate 1601 is hinged to the frame 1. The fourth telescopic cylinder 1602 drives the third swing plate 1601 to swing so that the fourth pressure roller 17 approaches or moves away from the rear drive roller 4. In this embodiment, the first swing mechanism 9, the second swing mechanism 14 and the third swing mechanism 16 have the same structure, and all include swing plates hingedly connected to both sides of the frame 1 and telescopic cylinders for pushing the swing plates to swing. The first pressure roller 10 adjusts the distance between itself and the coating roller 2 through the first swing mechanism 9, the third pressure roller 15 adjusts the distance between itself and the plate roller 3 through the second swing mechanism 14, and the fourth pressure roller 17 adjusts the distance between itself and the rear drive roller 4 through the third swing mechanism 16, which is convenient for adapting to films of different thicknesses and plays a tensioning role. It has the advantages of simple structure, high flexibility in use and a wide range of applications.

[0033] Preferably, a plurality of guide rollers 18 are rotatably mounted on the frame 1. In this embodiment, the number of guide rollers 18 is set to four, of which two groups of guide rollers 18 are arranged on the input side of the coating roller 2, and the other two groups of guide rollers 18 are arranged between the coating roller 2 and the plate roller 3. The film is wound around the guide rollers 18, which can maintain the correct direction and position of the film during transportation, ensuring that the film does not deviate from the predetermined path during transportation, thereby ensuring the normal operation of the equipment and product quality; in other embodiments, the number of guide rollers 18 can also be increased or decreased according to actual production needs, with high flexibility in use, and is not limited to this embodiment.

[0034] It should be noted that, in this embodiment, the coating roller 2, the plate roller 3 and the rear drive roller 4 are active rollers, and the first pressure roller 10, the second pressure roller 12, the cooling roller 13, the third pressure roller 15 and the fourth pressure roller 17 are driven rollers. One side of the coating roller 2, the plate roller 3 and the rear drive roller 4 is arranged to pass through the frame 1 and is connected to the drive motor power through a synchronous belt transmission mechanism. The first pressure roller 10 is driven to rotate after being pulled by the film and the coating roller 2, the second pressure roller 12, the cooling roller 13 and the third pressure roller 15 are driven to rotate after being pulled by the film and the plate roller 3, and the fourth pressure roller 17 is driven to rotate after being pulled by the film and the rear drive roller 4. The plate roller 3 and the rear drive roller 4 can be connected to a cooling water circulation system, so that the plate roller 3 and the rear drive roller 4 have cooling functions at the same time.

[0035] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A UV molding machine, comprising a frame (1), characterized in that: The frame (1) is provided with a coating roller (2), a plate roller (3) and a rear driving roller (4) which rotate in sequence along the film-moving direction; a UV light semi-curing station (5) is provided between the coating roller (2) and the plate roller (3); a UV light curing station (6) is provided on the periphery of the plate roller (3); and a UV light enhanced curing station (7) is provided between the plate roller (3) and the rear driving roller (4).

2. The UV molding machine according to claim 1, characterized in that: The coating roller (2) is provided with a sealing scraper assembly (8) for applying UV glue, the sealing scraper assembly (8) comprising a glue chamber (801) and a circulating glue supply system (802), and a first scraper (803) and a second scraper (804) respectively provided on both sides of the glue chamber (801) for contacting the coating roller (2).

3. The UV molding machine according to claim 1, characterized in that: A first pressing roller (10) is swingably provided on the frame (1) via a first swing mechanism (9). The first swing mechanism (9) comprises a first swing plate (901) and a first telescopic cylinder (902). The first pressing roller (10) is rotatably provided at one end of the first swing plate (901). The other end of the first swing plate (901) is hinged to the frame (1). The first telescopic cylinder (902) drives the first swing plate (901) to swing, so that the first pressing roller (10) moves closer to or away from the coating roller (2).

4. The UV molding machine according to claim 1, characterized in that: A second pressing roller (12) is movably provided on the frame (1) via a moving mechanism (11), the moving mechanism (11) comprising a sliding connection assembly (1101), a bearing seat (1102), a support (1103) and a second telescopic cylinder (1104), the second pressing roller (12) being rotatably provided on the support (1103), the support (1103) being fixedly connected to the bearing seat (1102), the bearing seat (1102) being slidably connected to the frame (1) via the sliding connection assembly (1101), and the second telescopic cylinder (1104) driving the bearing seat (1102) to move so that the second pressing roller (12) is moved closer to or away from the plate roller (3).

5. The UV molding machine according to claim 4, characterized in that: A cooling roller (13) is rotatably mounted on the bearing seat (1102), and the cooling roller (13) abuts against the second pressure roller (12).

6. The UV molding machine according to claim 1, characterized in that: A third pressing roller (15) is swingably provided on the frame (1) via a second swing mechanism (14). The second swing mechanism (14) comprises a second swing plate (1401) and a third telescopic cylinder (1402). The third pressing roller (15) is rotatably provided at one end of the second swing plate (1401). The other end of the second swing plate (1401) is hinged to the frame (1). The third telescopic cylinder (1402) drives the second swing plate (1401) to swing, so that the third pressing roller (15) moves closer to or away from the plate roller (3).

7. The UV molding machine according to claim 1, characterized in that: A fourth pressure roller (17) is swingably provided on the frame (1) via a third swing mechanism (16). The third swing mechanism (16) comprises a third swing plate (1601) and a fourth telescopic cylinder (1602). The fourth pressure roller (17) is rotatably provided at one end of the third swing plate (1601). The other end of the third swing plate (1601) is hinged to the frame (1). The fourth telescopic cylinder (1602) drives the third swing plate (1601) to swing, so that the fourth pressure roller (17) moves closer to or away from the rear drive roller (4).

8. The UV molding machine according to claim 1, characterized in that: A plurality of groups of guide rollers (18) are rotatably arranged on the frame (1).

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