UV LED light source system matched with different wavelengths

Abstract

The invention provides a UV LED light source system matched with different wavelengths. The UV LED light source system comprises a printing machine body and a mounting lamp holder, wherein a paper collecting part is arranged on one side of the printing machine body; the mounting lamp holder is mounted in the paper collecting part; a strip-shaped mounting groove is formed in the mounting lamp holder; and a strip-shaped adjusting seat is movably mounted in the strip-shaped mounting groove. The UV LED light source system matched with different wavelengths is reasonable in design; a UVA LED lamp and a UVC LED lamp are separately mounted on the mounting lamp holder in the paper collecting part; the UVA LED lamp can realize inner layer drying of traditional gloss oil; the UVC LED lamp realizes surface drying of the traditional gloss oil; energy consumption is low, temperature is low, paper deformation is small, and overprinting is accurate, so that the inner part of the machine is not liable to rust, and oil does not need to be added to parts such as a tooth row, and therefore, printing surface dirty points caused by oil flying in a printing process are prevented, and the service life is prolonged; and moreover, a mercury lamp on a conventional printing machine can be directly replaced, so that the UV LED light source system is energy-saving and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of printing machines, in particular to a UV LED light source system matched with different wavelengths. Background technique [0002] At present, most domestic offset printing machines use mercury lamps to cure UV inks. Mercury lamp is a kind of gas light source, which is made by the principle of gas discharge. It seals two electrodes in glass, and then fills some special gases (tritium, hydrogen, xenon, gallium, mercury, etc.), and ionizes the gas to ions and electrons through electrode discharge, and the ions and electrons are separated under the action of electric field force. Moving towards the two electrodes, it collides with more atoms during the movement, producing more electrons and ions. During this process, some atoms are excited to an excited state, and when the excited state transitions back to a lower energy level, the atoms emit photons. Under the excitation of the power supply, the excitati...

AI Technical Summary

Problems solved by technology

But its shortcoming is also many: (1) affect environmental protection: 1. the environmental pollution of mercury lamp, mercury lamp can produce a large amount of ozone in the far ultraviolet light below emission spectrum 200 μ m, has impact on environment

② The secondary pollution (mercury pollution) caused by the waste of mercury lamps is still a difficult problem to solve. At present, there is no good way to completely deal with waste mercury

(2) The far ultraviolet light of the mercury lamp will generate ozone, which will easily rust the internal parts of the machine and affect the service life of the machine

(3) The temperature is high. Although there is a water-cooled cooling system for circulating cooling, the internal temperature of the machine is high, reaching 60°C-90°C, which may easily cause various problems such as paper deformation and inaccurate registration during the printing process.

(4) High energy consumption and high electricity consumption do not meet the national energy-saving and emission requirements. At present, in the glazing unit in the printing field, the traditional UV varnish is cured by mercury lamps. Mercury lamps contain mercury, which is highly toxic and non-recyclable , with the approaching of the ban on mercury and the increasingly stringent environmental protection policies, it is an inevitable trend for new LED light sources to replace mercury lamps. However, using UV LED light sources to match the corresponding LED UV varnish will increase the cost of UV varnish for users, which limits The mass application of users, for this reason, the present invention provides a UV LED light source system with different wavelength matching

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