Energy saving device for drying ink of plastic photogravure press

Abstract

The invention discloses an energy saving device for drying ink of a plastic photogravure press, and relates to the technical field of printing drying. The device comprises a drying box, a drying fan, an electric heating box and a compressing condensing unit, wherein the compressing condensing unit comprises a compressor, an evaporator, an expansion valve, a filter, a liquid storing tank and a condenser; the air outlet end of the drying fan communicates with the electric heating box; the air outlet end of the electric heating box communicates with the drying box through a drying air port; the drying box is provided with two air outlets which correspondingly communicate with a dehumidifying fan and a circulating fan; and the air outlet end of the dehumidifying fan communicates with the evaporator of the compressing condensing unit through a pipeline. According to the device, humid hot air in the drying box is dehumidified and recovered and reheated during heat collecting and dissipating process of the compressing condensing unit in working, and then the air is circularly conveyed to the air ports of the drying box; the automatic control is carried out, so that heat can be greatly utilized, and the electric power is saved; the production is safe and efficient; and the production cost is saved.

Description

technical field [0001] The invention belongs to the technical field of printing and drying, and in particular relates to an ink drying and energy-saving device for a plastic gravure printing machine. Background technique [0002] The gravure printing machine adopts the direct printing method of circular pressing, and the printing plate is directly made on the printing plate cylinder, and the ink is supplied by immersion or inkjet, and there is no ink distribution mechanism. Due to the thick ink layer and the use of volatile fast-drying ink, it is necessary to have a drying device. [0003] At present, due to the long-term operation of the plastic gravure printing machine, the oven also operates for a long time. A temperature control device is installed inside the oven. The temperature control device controls the internal temperature of the oven. When the internal temperature of the oven is lower than the low temperature threshold, the temperature control device works. When ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy-saving device for ink drying of plastic gravure printing machines, which solves the problem that the existing gravure printing machine drying device has a low heat utilization rate, the inside of the oven is always in a heating state, consumes a large amount of electric energy, and has low safety. The problem of high production costs

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