Offset press varnish printing device

Abstract

The invention relates to the technical field of offset press printing devices, in particular to an offset press varnish printing device. The offset press varnish printing device comprises an impression cylinder, an offset printing mechanism and an oil receiving groove; the offset printing mechanism comprises an oil injection cavity, an offset printing roller and offset printing net stripes, and anink scraping knife is further arranged on one side of the offset printing roller; the oil receiving groove is further provided with a liquid level detection unit used for detecting the liquid level of ink in the oil receiving groove and preventing the ink from overflowing, the liquid level detection unit comprises an induction element, and a splash-proof sleeve, wherein the bottom of the splash-proof sleeve is immersed below the liquid level of the ink, a splash-proof protection area is formed by the sleeve wall of the splash-proof sleeve and the liquid level of the ink, and a liquid level early warning area is arranged in the splash-proof protection area; and the offset press varnish printing device further comprises a controller and an alarm unit. In the printing working process, a worker does not need to observe the liquid level at regular time, the phenomenon of oil liquid overflow is avoided, the additional workload of the worker is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of gravure printing devices, in particular to a varnish printing device for offset printing machines. Background technique [0002] Offset printing is an absolutely dominant printing method in China. Due to the advantages of fast printing speed, relatively stable printing quality, and short printing cycle, books, periodicals, newspapers, and a considerable part of commercial printing are all using offset printing. At present, varnish is widely used as a printing material in the printing field. The curing speed of varnish is fast, and it can be cured in less than 1 / 10 second under the irradiation of UV light. There is no need for extended drying tunnels required for infrared drying, and the adaptability of printing materials is strong. , especially suitable for printing mirror paper, laser paper, transfer paper and other papers that are not easy to absorb ink. The traditional varnish printing device needs an ...

AI Technical Summary

Problems solved by technology

At present, varnish is widely used as a printing material in the printing field. The curing speed of varnish is fast, and it can be cured in less than 1 / 10 second under the irradiation of UV light. There is no need for extended drying tunnels required for infrared drying, and the adaptability of printing materials is strong. , especially suitable for printing mirror paper, laser paper, transfer paper and other papers that are not easy to absorb ink. The traditional varnish printing device needs an oil receiving device to receive excess oil. In order to prevent oil overflow, the level of oil level usually needs to be Manual regular observation, if workers are negligent, once the oil overflows, it will be extremely inconvenient to clean up, causing pollution to the working environment, increasing workload and reducing work efficiency

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