Multistage film printing and curing device

Abstract

The utility model relates to the technical field of film printing equipment, in particular to a multistage film printing and curing device which comprises a rack, a conveying assembly, an oil applying assembly and a curing assembly, the conveying assembly, the oil applying assembly and the curing assembly are all erected on the rack, the oil applying assembly is connected to the conveying assembly, and the curing assembly is connected to the conveying assembly. The multiple oiling assemblies and the multiple curing assemblies are arranged, the multiple oiling assemblies are arranged on the rack at intervals from bottom to top in the vertical direction, and the multiple curing assemblies and the multiple oiling assemblies are arranged in a staggered mode in the vertical direction. And every time one group of oiling components completes ink transfer, the adjacent curing components immediately perform radiation curing on the ink layer, so that the binding force of the membrane material and the UV ink is enhanced to bear secondary printing pressure, and the printing device has the characteristic of improving the printing effect of the membrane.

Description

Technical Field

[0001] This application relates to the field of film printing equipment technology, and in particular to a multi-stage film printing and curing apparatus. Background Technology

[0002] Film printing is a process that transfers patterns and text onto the surface of a thin film using physical or chemical means. It encompasses a variety of technologies and can achieve high-efficiency, low-pollution industrial production by precisely matching the characteristics of the film material with the printing technology.

[0003] In related technologies, the film material is transported along a predetermined path by a transport component. During this process, it comes into contact with the oiling component and is coated with UV ink. Due to the layering requirements of some film materials, it is usually necessary to apply ink to the film material multiple times through multiple sets of oiling components. Finally, the UV ink and film material are quickly bonded by UV curing to form a printed pattern.

[0004] Existing printing equipment has the following problems: when dealing with complex patterns that require step-by-step printing, if the film is not cured in time, quality problems such as color shift will occur, affecting the final printing effect. Summary of the Invention

[0005] To improve the printing effect of the film, this application provides a multi-stage film printing and curing apparatus.

[0006] The multi-stage film printing and curing apparatus provided in this application adopts the following technical solution:

[0007] A multi-stage film printing and curing apparatus includes: a frame, a transport component, an oiling component, and a curing component. The transport component, the oiling component, and the curing component are all mounted on the frame. The oiling component is connected to the transport component. A plurality of oiling components and curing components are provided. The plurality of oiling components are arranged vertically from bottom to top on the frame at intervals. The plurality of curing components and the plurality of oiling components are arranged alternately in the vertical direction.

[0008] By adopting the above scheme, after each roller completes one oiling, an adjacent curing component immediately cures the surface of the film, strengthening the adhesion between the film material and the UV ink to withstand the pressure of secondary printing and improve the printing effect of the film.

[0009] Preferably, the frame is provided with an oil tank, the oil tank is hollow, the side wall of the oil tank is provided with an oil inlet, one end of the oil inlet is connected to the oil tank, an oil-absorbing plate is built into the oil tank, the oil-absorbing plate is inclined from bottom to top towards the oiling assembly, and the oiling assembly is connected to the oil-absorbing plate.

[0010] By adopting the above scheme, the oil tank is replenished with UV ink through the oil inlet, so as to achieve a stable ink volume in the oil tank. The oiling component can directly pick up ink from the tilted oiling plate through contact.

[0011] Preferably, the oiling assembly includes an oil-dipping roller and an oiling roller, the oiling roller being rotatably supported on one side of the oil-dipping roller, and the oil-dipping roller being close to the upper surface of the oil-dipping plate.

[0012] By adopting the above scheme, after the oil-dipping roller evenly dips into the UV ink from the oil tank, the oil-dipping roller transfers the UV ink to the top oil roller through relative movement. The top oil roller then evenly coats the ink onto the surface of the film to be coated. The two rollers work together to achieve a stable supply of ink and reduce the occurrence of uneven oil film or oil interruption.

[0013] Preferably, the transport assembly includes a tension roller and a driven roller, the driven roller being rotatably supported on one side of the oiling roller, and the tension roller being located below the driven roller and receiving film material from the unwinding direction.

[0014] By adopting the above scheme, the tensioning roller is used to apply force to the film material from the unwinding direction to maintain a certain tension, and the driven roller and the oiling roller cooperate to clamp and convey the film material to maintain tension.

[0015] Preferably, an oil receiving tray is provided directly below the oil tank, and the oil receiving tray is detachably connected to the frame.

[0016] By adopting the above solution, the oil tray is used to collect UV ink dripping from the upper oil tank, reducing the occurrence of ink spillage and equipment contamination. The detachable connection of the oil tray facilitates subsequent cleaning and maintenance of the equipment by the staff.

[0017] Preferably, the curing device includes a lamp source, a lamp cover, and a fan. The lamp cover is disposed outside the lamp source, and the fan is disposed on the side wall of the lamp cover and communicates with the interior of the lamp cover.

[0018] By adopting the above solution, the lampshade reduces external interference, the lamp source induces the UV ink on the film material to cure by outputting a specific wavelength of light, and the fan continuously exhausts the heat generated by the lamp source outside the lampshade, reducing the occurrence of lamp source life decay or material deformation due to heat caused by high temperature, thereby improving the lifespan of the lamp source and the yield of film printing.

[0019] Preferably, the lower surface of the lampshade has a light-transmitting slit.

[0020] By adopting the above scheme, the light utilization rate of the lamp source is increased, the light is focused on the target area, and the curing uniformity of UV ink is improved.

[0021] Preferably, the frame is provided with a correction component, which is connected to the outside of the lampshade.

[0022] By adopting the above solution, membrane material misalignment can be quickly corrected, enabling the membrane material to travel along a preset path and reducing the occurrence of membrane material deviation, wrinkles, or overlap.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. After each roller completes one oiling cycle, an adjacent curing unit immediately cures the film surface to strengthen the adhesion between the film and UV ink, so as to withstand the pressure of secondary printing and improve the printing effect of the film.

[0025] 2. The oiling roller and the oiling roller work together to ensure a stable oil supply and reduce the occurrence of uneven oil film or oil interruption;

[0026] 3. Reduces ink spillage that could contaminate equipment, making it easier for staff to clean and maintain the equipment later. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram showing the cooperation relationship between the oil tank, the oiling assembly, and the transport assembly in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram illustrating the application of the correction component in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Correction assembly; 21. Correction roller; 22. Driver; 3. Oil tank; 31. Oil inlet; 32. Oil-absorbing plate; 33. Oil receiving tray; 4. Oiling assembly; 41. Oil-absorbing roller; 42. Oiling roller; 5. Transport assembly; 51. Tensioning roller; 52. Driven roller; 6. Curing assembly; 61. Lamp cover; 62. Fan; 63. Light-transmitting slit. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses a multi-stage film printing and curing apparatus. (Refer to...) Figure 1-2 A multi-stage film printing and curing apparatus includes a frame 1, on which a transport component 5, an oiling component 4, and a curing component 6 are mounted. The transport component 5 is responsible for transporting the film material, the oiling component 4 is responsible for coating the film material with UV ink, and the curing component 6 is responsible for curing the film material to bond the film material with the UV ink.

[0033] Specifically, there are several oiling components 4 and curing components 6. In this embodiment, there are three sets of oiling components 4 and curing components 6. The three sets of oiling components 4 are arranged at intervals from bottom to top in the vertical direction, and the three sets of curing components 6 are arranged alternately with the three sets of oiling components 4 in the vertical direction.

[0034] Correspondingly, during the continuous printing process of the film material, whenever a set of oiling components 4 completes the ink transfer, the curing component 6 located above the oiling component 4 immediately performs radiation curing on the ink layer, strengthening the adhesion between the film material and the UV ink, and reducing the occurrence of ink layer displacement during overprinting.

[0035] Furthermore, after the ink layer cures, a cured layer is formed to withstand the pressure of subsequent secondary printing, thus improving the printing effect of the film.

[0036] On the other hand, an oil tank 3 is provided on the frame 1. The two sides of the oil tank 3 are connected to the frame 1. The oil tank 3 is hollow. An oil inlet 31 is provided on the side wall of the oil tank 3. One end of the oil inlet 31 is connected to the inside of the oil tank 3, which supports manual injection of UV ink from the oil inlet 31 to maintain a stable oil volume. The operation is simple.

[0037] Furthermore, an oil-absorbing plate 32 is built into the oil tank 3. The oil-absorbing plate 32 is placed at an angle from bottom to top facing the oiling assembly 4. After the UV ink is injected from the oil inlet 31, it flows to the oil-absorbing plate 32 and adheres to the oil-absorbing plate 32. The oiling assembly 4 is connected to one side of the oil-absorbing plate 32. The oiling assembly 4 can efficiently pick up the UV ink by directly contacting the inclined surface of the oil-absorbing plate 32, reducing the occurrence of oil splashing or uneven supply.

[0038] Specifically, in this embodiment, each oiling assembly 4 includes an oil-dipping roller 41 and an oiling roller 42. Both the oil-dipping roller 41 and the oiling roller 42 are rotatably connected to the frame 1. The oil-dipping roller 41 is adjacent to the upper surface of the oil-dipping plate 32 and uniformly adsorbs UV ink from the surface of the oil-dipping plate 32 through rotational movement. The oiling roller 42 is axially mounted on the outside of the oil-dipping roller 41. Through the relative rotation and surface contact pressure between the two rollers, the ink is quantitatively transferred from the oil-dipping roller 41 to the oiling roller 42. The oiling roller 42 then uniformly coats the UV ink onto the surface of the film substrate through rotational movement.

[0039] Therefore, the oil-coating roller 41 and the oil-applying roller 42 work together to form a dual-roller collaborative mechanism, which effectively improves the continuity and stability of oil transfer and reduces the occurrence of oil film thickness fluctuations and oil supply interruptions during the coating process.

[0040] On the other hand, the transport assembly 5 includes a tension roller 51 and a driven roller 52. Both the tension roller 51 and the driven roller 52 are rotatably connected to the frame 1. The driven roller 52 is rotatably supported on one side of the oiling roller 42, while the tension roller 51 is located in the space below the driven roller 52 and directly receives the film material output from the unwinding direction.

[0041] Furthermore, the tension roller 51 can apply a radial force to the film material to maintain a certain tension during transmission, thereby increasing the effective frictional contact between the film material and the transport roller assembly and reducing energy loss or film material deviation caused by speed difference. In addition, tension fluctuations can change the contact pressure between the film material and the oiling roller 42, leading to uneven UV ink thickness or ink breakage defects. Tension compensation can effectively improve the coating uniformity of UV ink.

[0042] Meanwhile, the driven roller 52 and the oiling roller 42 form a clamping pair, and through the combined action of roller surface friction and pressure, the film material is stably conveyed in the winding direction.

[0043] In addition, an oil receiving tray 33 is provided directly below the oil tank 3. The oil receiving tray 33 is threadedly connected to the frame 1. In this embodiment, the oil receiving tray 33 is a cuboid-shaped trough structure, which is used to collect UV ink dripping from the oil tank 3 above, reducing the occurrence of ink overflow causing equipment contamination. The oil receiving tray 33 can be removed from the frame 1 by unfastening the fasteners, which improves the convenience of subsequent cleaning and maintenance of the equipment by the staff.

[0044] On the other hand, the curing device includes a lamp source (not shown in the attached figure), a lamp cover 61, and a fan 62. The two sides of the lamp cover 61 are connected to the frame 1. The lamp cover 61 covers the outside of the lamp source. By constructing a closed optical path environment, the interference of ambient light is reduced. At the same time, the fan 62 is connected to the side wall of the lamp cover 61. The fan 62 continuously exhausts the heat generated by the lamp source outside the lamp cover 61, reducing the occurrence of lamp source life decay or material deformation due to heat caused by high temperature, thereby improving the life of the lamp source and the yield of film printing.

[0045] Furthermore, in this embodiment, the light source is set as an ultraviolet LED lamp group, whose spectral output range strictly matches the absorption band of the UV ink photoinitiator. The photoinitiator in the UV ink is activated by the photochemical reaction initiated by ultraviolet light, realizing the rapid cross-linking of the material. This rapid curing characteristic reduces the need for manual intervention and is suitable for continuous automated printing production scenarios.

[0046] Furthermore, a light-transmitting slit 63 is provided on the lower surface of the lampshade 61. By focusing the light onto the target area, the light utilization rate of the lamp source is increased, thereby improving the curing uniformity of the UV ink and reducing the edge curing defects caused by stray light.

[0047] In addition, refer to Figure 3The frame 1 is also equipped with a correction component 2. The correction component 2 is connected to the frame 1 and connected to the outside of the lamp cover 61. In this embodiment, the correction component 2 includes a correction roller 21 and a driver 22. The correction roller 21 is rotatably supported on the frame 1. The driver 22 is connected to the frame 1. The correction component 2 is externally connected to an external sensor and controller. The correction roller 21 receives the cured film material. The film material is clamped and conveyed by the driven roller 52 and the oiling roller 42.

[0048] Specifically, the correction component 2 monitors the transmission position of the membrane material in real time through sensors. If the membrane material is found to be deviated, the controller controls the driver 22 to correct the position of the correction roller 21 in time, so that the membrane material travels along the preset path, reducing the occurrence of membrane material deviation, wrinkles or overlap.

[0049] Correspondingly, the correction component 2 is a conventional technical means for those skilled in the art, and will not be described in detail here.

[0050] The implementation principle of the multi-stage film printing and curing device in this application embodiment is as follows: the oiling component 4 and the curing component 6 are staggered and spaced apart in the vertical direction of the frame 1. During the continuous printing of the film material, whenever a group of oiling components 4 completes the ink transfer, the adjacent curing component 6 immediately performs radiation curing on the ink layer to strengthen the bonding force between the film material and the UV ink, so as to withstand the pressure of subsequent secondary printing. While reducing the displacement of the ink layer during overprinting, the printing effect of the film is improved.

[0051] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage film printing and curing apparatus, characterized in that, The assembly includes a frame (1), a transport component (5), an oiling component (4), and a curing component (6). The transport component (5), the oiling component (4), and the curing component (6) are all mounted on the frame (1). The oiling component (4) is connected to the transport component (5). There are several oiling components (4) and several curing components (6). The oiling components (4) are arranged vertically from bottom to top on the frame (1). The curing components (6) and the oiling components (4) are arranged alternately in the vertical direction.

2. The multi-stage film printing and curing apparatus according to claim 1, characterized in that, An oil tank (3) is provided on the frame (1). The oil tank (3) is hollow. An oil inlet (31) is provided on the side wall of the oil tank (3). One end of the oil inlet (31) is connected to the oil tank (3). An oil-dipping plate (32) is built into the oil tank (3). The oil-dipping plate (32) is inclined from bottom to top towards the oiling assembly (4). The oiling assembly (4) is connected to the oil-dipping plate (32).

3. The multi-stage film printing and curing apparatus according to claim 2, characterized in that, The oiling assembly (4) includes an oil-dipping roller (41) and an oiling roller (42). The oiling roller (42) is rotatably supported on one side of the oil-dipping roller (41), and the oil-dipping roller (41) is close to the upper surface of the oil-dipping plate (32).

4. The multi-stage film printing and curing apparatus according to claim 3, characterized in that, The transport assembly (5) includes a tension roller (51) and a driven roller (52), the driven roller (52) being rotatably supported on one side of the oiling roller (42), and the tension roller (51) being located below the driven roller (52) and receiving film material from the unwinding direction.

5. The multi-stage film printing and curing apparatus according to claim 2, characterized in that, An oil receiving tray (33) is provided directly below the oil tank (3), and the oil receiving tray (33) is detachably connected to the frame (1).

6. The multi-stage film printing and curing apparatus according to claim 1, characterized in that, The curing device includes a lamp source, a lamp cover (61) and a fan (62). The lamp cover (61) is placed outside the lamp source, and the fan (62) is disposed on the side wall of the lamp cover (61). The fan (62) is in communication with the inside of the lamp cover (61).

7. The multi-stage film printing and curing apparatus according to claim 6, characterized in that, The lower surface of the lampshade (61) is provided with a light-transmitting slit (63).

8. The multi-stage film printing and curing apparatus according to claim 6, characterized in that, The frame (1) is provided with a correction component (2), which is connected to the outside of the lampshade (61).

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