CN212949696U - Drying device for UV ink on PETG heat shrinkage film - Google Patents

Abstract

The utility model discloses a drying device for UV printing ink on a PETG heat shrinkage film, which comprises a UV drying lamp box and a bracket; the UV drying lamp box is a box body with an opening at the lower part, and the opening of the UV drying lamp box covers the bracket; an air suction opening, an upper UV curing lamp and a UV drying lamp are arranged on the top of the cover of the UV drying lamp box, the ultraviolet wavelength of the upper UV curing lamp is 365-385nm, and the ultraviolet wavelength of the UV drying lamp is 200-350 nm; the bracket is provided with a driven guide roller and a driving water-cooling guide roller, a cold air device and a lower UV curing lamp are arranged between the driven guide roller and the driving water-cooling guide roller, and the ultraviolet wavelength of the lower UV curing lamp is 365-385 nm. The utility model discloses the drying device installation cold wind device and the initiative water-cooling deflector roll of UV printing ink on PETG heat shrink membrane cool down in solidification and drying, make PETG heat shrink membrane not produce the shrink deformation, adopt the ultraviolet ray of different wavelengths to carry out drying and solidification, avoid single wave band ultraviolet ray to PETG heat shrink membrane radiation production's solidification and drying thoroughly, the performance is inhomogeneous.

Description

Drying device for UV ink on PETG heat shrinkage film

Technical Field

The utility model belongs to the printing field especially relates to a drying device of UV printing ink on PETG thermal contraction membrane.

Background

The heat shrinkable film is popular due to the advantages of high transparency, good wear resistance, bright color of printed patterns and the like, and is also applied to labels and bundling packages of beverages, washing and chemical products, electronic products, industrial products, fast food and the like, and particularly, the heat shrinkable film is rapidly developed as a label. The market share of the heat shrinkable film in the label field is continuously expanded, the annual growth rate is kept between 7% and 10%, and is far higher than that of a common label market by 4% to 5%, and the development potential is huge.

Safety, environmental protection and sanitation are the most concerned problems in dairy industry and beverage industry, at present, the PETG heat shrinkable film label can meet the requirements to a certain extent, but information pictures and texts printed on the surface of the PETG heat shrinkable film label are mainly solvent-based ink in the prior art, so that the VOC content of the PETG heat shrinkable film label is over 70 percent, and the PETG heat shrinkable film label is not beneficial to the requirements of environmental protection and sanitation. The UV ink is attractive due to no need of solvent and environmental friendliness, but because the PETG heat shrinkable film is easy to shrink and deform by heating, the temperature of the UV ink in the prior art is higher, and the UV ink is not suitable for drying the UV ink of the PETG heat shrinkable film.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel water-saving device; the device for drying the UV ink on the PETG heat shrinkable film can fully dry the UV ink on the PETG heat shrinkable film and cannot shrink or deform the PETG heat shrinkable film.

The technical scheme of the utility model is that:

a drying device for UV printing ink on a PETG heat shrinkage film comprises a UV drying lamp box and a support; the UV drying lamp box is a box body with an opening at the lower part, and the opening of the UV drying lamp box covers the bracket; an air suction opening, an upper UV curing lamp and a UV drying lamp are arranged on the top of the cover of the UV drying lamp box, the ultraviolet wavelength of the upper UV curing lamp is 365-385nm, and the ultraviolet wavelength of the UV drying lamp is 200-350 nm; the bracket is provided with a driven guide roller and a driving water-cooling guide roller, a cold air device and a lower UV curing lamp are arranged between the driven guide roller and the driving water-cooling guide roller, and the ultraviolet wavelength of the lower UV curing lamp is 365-385 nm.

The utility model discloses a drying device of UV printing ink on PETG heat shrink membrane can make it remove in the UV printing machine through removing the support for the PETG heat shrink membrane of dry completion printing. Because the utility model discloses a drying device of UV printing ink on PETG heat shrink film has installed the UV wavelength and has accomplished the solidification of UV printing ink for 365 + 385 nm's last UV curing lamp and lower UV curing lamp on the caping of UV drying lamp case, installed the UV wavelength simultaneously and has dried the printing ink of solidification for 200 + 350 nm's UV curing lamp, the ultraviolet ray that adopts different wavelengths carries out drying and solidification respectively, make PETG heat shrink film solidify effectively and dry, it is not thorough to avoid the solidification and the drying of single wavelength section ultraviolet ray to PETG heat shrink film radiation production, the performance is inhomogeneous.

The utility model discloses a install cold wind device and initiative water-cooling deflector roll on PETG thermal contraction membrane drying device's of UV printing ink's the support, the cold wind device can provide cold wind, reduces the temperature rise of PETG thermal contraction membrane under the ultraviolet irradiation, avoids PETG thermal contraction membrane to produce the heat shrink. The driving water-cooling guide roller provides traction advancing power for the PETG heat shrinkable film on one hand, and can timely cool the dried PETG heat shrinkable film on the other hand. The lower UV curing lamp on the support can carry out the solidification of UV printing ink from the PETG heat shrink membrane back, consequently, the utility model discloses a drying device of UV printing ink on PETG heat shrink membrane more is fit for the drying of UV printing ink on the PETG heat shrink membrane of two-sided printing.

Preferably, go up the UV curing lamp and be two sets of, two sets of go up the UV curing lamp with initiative water-cooling deflector roll length direction parallel arrangement, the UV drying lamp is in the middle part of two sets of UV curing lamps and the border position of caping is the symmetric distribution.

Preferably, the suction opening is provided in plurality along the edge of the cover top.

Preferably, follow on the cold wind device initiative water-cooling deflector roll length direction parallel arrangement has the multiunit cold wind mouth, be provided with the exhaust vent of variation in size, staggered arrangement on the cold wind mouth.

Preferably, a cold water pipe coiled along the outer surface of the driving water-cooling guide roller is arranged in the driving water-cooling guide roller.

Preferably, the UV drying lamp is a lamp set consisting of a plurality of ultraviolet lamps.

The utility model has the advantages that: the utility model discloses a drying device of UV printing ink on PETG heat shrink membrane installs cold wind device and initiative water-cooling deflector roll, cools down PETG heat shrink membrane when solidifying and dry UV printing ink, makes PETG heat shrink membrane not produce the shrink deformation. In addition, the UV curing lamp with the wavelength of 365-.

Drawings

Fig. 1 is a schematic view of a drying device for UV ink on a PETG heat shrinkage film according to the present invention.

Fig. 2 is a top view of the UV drying lamp box of the drying device for UV ink on the PETG heat shrinkage film of the present invention.

Fig. 3 is a schematic diagram of the support structure of the drying device for UV ink on the PETG heat shrinkage film of the present invention.

Fig. 4 is a schematic view of a cold air port structure.

Fig. 5 is a schematic view of a structure of a UV drying lamp composed of a plurality of ultraviolet lamps.

In the figure: 1. a UV drying lamp box; 11. covering the top; 12. an air suction opening; 13. a first set of upper UV curing lamps; 14. a second set of upper UV curing lamps; 15. a UV drying lamp; 151. an ultraviolet lamp; 2. a support; 21. a driven guide roller; 22. a driving water-cooling guide roller; 23. a cold air device; 231. a cold air port; 232. an air outlet; 24. a lower UV curing lamp.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in figure 1, the utility model discloses a drying device of UV printing ink on PETG thermal contraction membrane, including UV drying lamp house 1 and support 2. The UV drying lamp box 1 is a box body with an opening at the lower part, and the opening of the UV drying lamp box 1 is covered above the support 2. Fig. 2 is a bottom view of a UV drying lamp box cover top of the drying device for UV ink on a PETG heat shrinkage film of the present invention, as shown in fig. 2, an air suction opening 12, upper UV curing lamps 13 and 14 and a UV drying lamp 15 are arranged on a cover top 11 of the UV drying lamp box 1, the ultraviolet wavelengths of the upper UV curing lamps 13 and 14 are 365 and 385nm, and the ultraviolet wavelength of the UV drying lamp 15 is 200 and 350 nm. Fig. 3 is the utility model discloses a drying device support structure sketch map of UV printing ink on PETG thermal contraction membrane, like fig. 3, be provided with driven deflector roll 21 and initiative water-cooling deflector roll 22 on the support 2, driven deflector roll 21 with be provided with cold wind device 23 and UV curing lamp 24 down between the initiative water-cooling deflector roll 22, the ultraviolet wavelength of UV curing lamp 24 is 365-.

When carrying out PETG thermal contraction membrane UV printing ink printing, can make the utility model discloses a drying device of UV printing ink moves in UV printing machine on PETG thermal contraction membrane through removing support 2 to dry the PETG thermal contraction membrane of printing completion. When the UV drying lamp box works, the PETG heat shrinkable film printed with UV ink is stretched by the driven guide roller 21 and passes through the lower part of the UV drying lamp box 1 and the upper part of the bracket under the traction of the driving water-cooling guide roller 22, and the printing speed can reach more than 200 m/min. Because the utility model discloses a drying device of UV printing ink on PETG heat shrink film has installed UV wavelength and has been accomplished the solidification to UV printing ink for 365 + 385 nm's last UV curing lamp 13 and/or 14 on the caping 11 of UV drying lamp case 1, installed UV wavelength simultaneously and has dried the printing ink of solidification for 200 + 350 nm's UV drying lamp 15, the ultraviolet ray of adopting different wavelengths carries out drying and solidification respectively, make PETG heat shrink film solidify effectively and dry, it is incomplete to avoid the solidification and the drying of single wave band wavelength ultraviolet ray to PETG heat shrink film radiation production, the performance is inhomogeneous. The cold air device 23 can provide cold air, and the temperature rise of the PETG heat shrinkage film under ultraviolet irradiation is reduced through the cold air, so that heat shrinkage is avoided; the driving water-cooling guide roller 22 provides traction advancing power for the PETG heat shrinkable film on one hand, and can timely cool the dried PETG heat shrinkable film on the other hand. The lower UV curing lamp 24 on the holder 2 may cure the UV ink from the back of the PETG heat shrinkable film, but may be provided in plural. Therefore, the drying device of the UV printing ink on the PETG heat shrinkage film is suitable for drying the UV printing ink on the PETG heat shrinkage film printed on two sides. Of course, the UV curing lamp can be turned off only for curing the PETG heat shrinkable film printed with UV ink on one side. The air suction opening 12 arranged on the cover top 11 of the UV drying lamp box can exhaust the gas generated during curing at any time.

Use the utility model discloses a drying device carries out the drying after PETG thermal contraction membrane UV printing ink printing, and PETG thermal contraction membrane production shrink or deformation do not appear, and the bright and beautiful color and luster.

Preferably, the upper UV curing lamps are two sets, i.e., a first set of upper UV curing lamps 13 and a second set of upper UV curing lamps 14. The two groups of upper UV curing lamps 13 and 14 are arranged in parallel with the length direction of the driving water-cooling guide roller 22, and the UV drying lamps 15 are symmetrically distributed at the middle parts of the two groups of upper UV curing lamps 13 and 14 and at the edge part of the cover top 11. Therefore, the irradiation range of the UV drying lamp is uniform and consistent on the whole printed matter surface, and the UV printing quality on the obtained PETG heat shrinkage film is uniform and consistent.

Preferably, the suction opening 12 is provided in plurality along the edge of the cap top 11. The plurality of air suction openings can discharge the generated air in time.

Preferably, a plurality of groups of cold air vents 231 are arranged on the cold air device 23 in parallel along the length direction of the active water-cooling guide roller 22, and air outlet holes 232 with different sizes and arranged in a staggered manner are arranged on the cold air vents 231, as shown in fig. 3 and 4. The air outlets of the cold air vents are arranged in different sizes and in a staggered manner, so that the uniform dispersion of cold air is facilitated, the cooling can be rapidly and uniformly realized, and the overheating deformation of the PETG heat shrinkage film in the curing or drying process is avoided.

Preferably, a cold water pipe coiled along the outer surface of the active water-cooling guide roller is arranged in the active water-cooling guide roller 22. The cold water pipe is arranged on the outer surface of the driving water-cooling guide roller to cool more quickly.

Preferably, the UV drying lamp 15 is a lamp set composed of a plurality of ultraviolet lamps 151. To setting up UV drying lamp 15 on UV drying lamp house 1 caping 11, adopt the banks that a plurality of ultraviolet lamps are constituteed, not only be favorable to rationally arranging to make the drying more even to also be favorable to in time changing and maintaining.

The utility model discloses a drying device of UV printing ink on PETG thermal contraction membrane installs cold wind device and initiative water-cooling deflector roll, can cool down in solidification and dry. Use the utility model discloses a drying device carries out the drying after PETG thermal contraction membrane UV printing ink printing, the shrink of PETG thermal contraction membrane or deformation do not appear, and the bright and beautiful color and luster, the quality is even, stable.

The foregoing description is only intended to illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. And the above technical features can be combined with each other.

Claims (6)

1. A drying device for UV printing ink on a PETG heat shrinkage film is characterized by comprising a UV drying lamp box and a support; the UV drying lamp box is a box body with an opening at the lower part, and the opening of the UV drying lamp box covers the bracket; an air suction opening, an upper UV curing lamp and a UV drying lamp are arranged on the top of the cover of the UV drying lamp box, the ultraviolet wavelength of the upper UV curing lamp is 365-385nm, and the ultraviolet wavelength of the UV drying lamp is 200-350 nm; the bracket is provided with a driven guide roller and a driving water-cooling guide roller, a cold air device and a lower UV curing lamp are arranged between the driven guide roller and the driving water-cooling guide roller, and the ultraviolet wavelength of the lower UV curing lamp is 365-385 nm.

2. The device for drying the UV ink on the PETG heat shrinkable film as claimed in claim 1, wherein the two groups of upper UV curing lamps are arranged in parallel with the length direction of the active water-cooling guide roller, and the UV curing lamps are symmetrically distributed at the middle parts of the two groups of upper UV curing lamps and the edge part of the cover top.

3. The device for drying UV ink on PETG heat shrink film according to claim 1, wherein said air suction opening is a plurality of openings arranged along the edge of said cap top.

4. The device for drying the UV ink on the PETG heat shrinkable film as claimed in claim 1, wherein a plurality of groups of cold air vents are arranged on the cold air device in parallel along the length direction of the active water-cooling guide roller, and air outlets with different sizes and staggered arrangement are arranged on the cold air vents.

5. The device for drying the UV ink on the PETG heat shrinkable film as claimed in claim 1, wherein a cold water pipe coiled along the outer surface of the active water-cooling guide roller is arranged in the active water-cooling guide roller.

6. The apparatus for drying UV ink on PETG heat shrink film according to claim 1, wherein said UV drying lamp is a lamp set consisting of a plurality of ultraviolet lamps.

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