Water cooling device for printing machine cooling roll

Abstract

The invention relates to a water cooler of cooling roller of printer, wherein it comprises that: carrier frame, cooling roller, water inlet tube, and reflux tube; the frame via bearing and bearing base is mounted with rotational cooling roller; the water inlet tube with injection holes is through into cooling roller; and the reflux tube is connected to out space. The invention is characterized in that: two ends of cooling roller are sheathed with water wheel through to the holes of cooling roller; the outer surface of water wheel is shaped with convex tooth ring; the inner surface of frame is shaped with annular groove to contain the outer convex tooth ring; the box is through to the reflux tube. The invention has better cooling effect, simple structure and easy installment, to be used on high-speed printer.

Description

technical field

[0001] The invention relates to a water cooling device for cooling rollers of printing machines. Background technique

[0002] Most of the current printing machines such as high-speed gravure printing machines, flexographic printing machines, and dry laminating machines use self-overflow cooling rolls. In practice, it has been shown that the original self-overflow cooling rolls still have many shortcomings, such as The cooling roller is relatively heavy, and one end is heavy and the other end is light, which will greatly affect the feeding tension, so it is not suitable for high-speed machines with a printing speed higher than 200 m / min; the cooling roller originally uses a spiral joint to enter and exit water, and the cooling roller has a large resistance. It is not suitable for printing machines with high printing speed; the water circulation of the cooling roller originally used for the cooling roller is relatively slow, and the cooling effect is poor, whi...

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