Corrugated roller heating structure

Abstract

The invention relates to a corrugated roller heating structure, comprising a body; the body comprises a spindle head and a barrel connected with the spindle head; wherein, the inner wall of the barrel is provided with a pore path, the spindle head is internally provided with an air inlet pipe and an air outlet hole; and one steam connection air inlet pipe is communicated with the air outlet by virtue of the pore path. The invention has the beneficial effect of solving the problem that abnormal production is caused by roller body deformation as condensed water is deposited.

Description

technical field [0001] The invention relates to a corrugated roll, in particular to the heating structure of the corrugated roll. Background technique [0002] The corrugating rollers must be heated to make the cardboard into a corrugated shape after passing through. The corrugating rollers in the prior art generally use three types of electric heating, oil heating, and steam heating (refer to GB / T1447.1-2000 corrugating roller standard 4.2) Among them, steam heating has been generally accepted by customers for a long time because of its low cost and good safety performance. [0003] Depend on figure 1 It can be seen that the steam heating of the corrugating roll is by introducing the pressure steam 1 into the inner cavity 6 of the roll through the shaft head 5 to transfer heat to the roll body 2 from the inside to the outside. After the heat is released, it becomes condensed water 3, which is stored in the inner cavity of the roller, and then the condensed water is contin...

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Problems solved by technology

[0003] Depend on figure 1 It can be seen that the steam heating of the corrugating roll is by introducing the pressure steam 1 into the inner cavity 6 of the roll through the shaft head 5 to transfer heat to the roll body 2 from the inside to the outside. After the heat is released, it becomes condensed water 3, which is stored in the inner cavity of the roller, and then the condensed water is continuously removed by the steam pressure through the siphon tube 4; and the siphon tube must keep a certain distance from the inner wall of the corrugated roll due to its structural characteristics, and it must be in the inner cavity of the entire roller. There is a point, and due to various problems such as installation accuracy and manufacturing accuracy control, the condensed water cannot be immediately and completely discharged from the roller body, so a layer of liquid water film is formed on the inner wall

[0004] There are problems in this way: one is to hinder the heat transfer efficiency of the steam; the other is that when the corrugating roller stops running, the condensed water will accumulate at the bottom, and the corrugating roller will be deformed and bent due to the temperature difference between the upper and lower parts, which will cause the corrugating roller to restart production. A piece of cardboard waste is produced until the entire corrugating roller body is gradually heated evenly, and the production can only be normal after recovery and deformation are eliminated; due to the frequent shutdown frequency of the carton factory, the cumulative loss is very large

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