Exposure machine for printing

Abstract

The invention discloses an exposure machine for printing. The exposure machine comprises a cabinet body, ultraviolet lamps, a vacuum pump and a sealing cover for covering the cabinet body, a pipelineis provided with a unidirectional-gas discharging one-way valve, the machine also comprises an exposure plate part, a driving part and a control part, the exposure plate part includes four slide plates, slide seats, gas suction members and exposure plate units, one ends of the slide plates are slidably connected to the sidewall of the cabinet body, and the gas suction parts are slidably connectedto the slide seat through springs; the driving part includes a power source, telescopic rods and a driving part, the driving part is connected to the telescopic rods and is used for driving the gas suction members to move, and the telescopic rods are provided with the ultraviolet lamps; and the control part comprises a controller, pressure sensors and first electronic control valves, the gas suction members are provided with gas discharging tubes, the first electric control valves are arranged on the gas discharging tubes, and the power source, the pressure sensors and the first electric control valves are respectively electrically connected with the controller. The exposure machine can ensure the uniformity of an exposure plate, and can avoid generated harmful gases from escaping in orderto ensure the health of operators.

Description

technical field [0001] The invention relates to an exposure device for contact printing, in particular to a drying machine for printing. Background technique [0002] Drying machine is commonly known as (photosensitive seal engraving machine, portrait seal machine, wedding seal engraving machine). As the latest type of seal in the world, photosensitive seal is easy to make, clear seal, long service life and strong applicability. Promote and become an upgraded product in my country's seal industry. [0003] The drying machine passes the ultraviolet light emitted from the ultraviolet lamp through the film and then irradiates the photosensitive plate, so that the part of the photosensitive plate corresponding to the light-transmitting part of the film produces a photochemical reaction to form a water-insoluble polymer chain. After the plate is washed, this part is left as a raised part, thereby forming the desired pattern on the photosensitive plate. [0004] Patent Publicatio...

AI Technical Summary

Problems solved by technology

[0005] Although the above scheme can realize the conventional drying board operation, it still has the following problems: 1. The light source used for the board drying process has poor uniformity on the photosensitive board; Some harmful gases, after the drying board is finished, open the upper cover of the drying machine, the harmful gas will be released, which will affect the health of the operators

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