A steam heating and setting device for cardboard forming

Abstract

A steam heating and forming device for shaping of paperboards comprises a heating board with an inner heating cavity, steam runners which are wound back and forth are arranged inside the inner heating cavity and attach to a heating bottom board, a steam inlet is formed in a middle steam runner on one side, the two steam runners are oppositely arranged in an up and down mode with the middle steam runner provided with the steam inlet as the starting point, the two steam runners are communicated with side wall steam runners on the two side walls respectively, a steam outlet is formed in the tail end side wall of each side wall steam runner, the heating board is rectangular, the steam runners of the inner heating cavity of the heating board are formed by welding battens with the protrusive middles to the upper face of the heating bottom board, and the cross section of the runners between the battens and the heating bottom board is shaped like an isosceles triangle steam runner with the wide runner bottom face and the small area. The steam heating and forming device for shaping of paperboards has the advantages of being simple and compact in structure, reasonable in layout, capable of rapidly increasing steam temperature in the heating board, good in heat transfer effect, high in production efficiency of paperboards, capable of reducing rate of waste paper, good in energy-saving effect and the like.

Description

Technical field [0001] The invention relates to a steam heating setting device for cardboard forming, which is mainly used for hot press forming of cardboard in a corrugated cardboard production line, and belongs to the technical field of cardboard heating. Background technique [0002] In the corrugated cardboard production line, there is a setting device that compresses and heats the cardboard (heating). This heating setting device uses a steam heating plate with an internal cavity, and the internal cavity of the steam heating plate The steam makes the steam heating plate surface close to the cardboard surface reach the required temperature, and transfers the heat to the contacting cardboard surface to heat the cardboard. [0003] Because there are certain requirements for the heating of the cardboard, the main problem is the control of the heating temperature. The low temperature of the heating plate will make the cardboard not dry, and it will not achieve the purpose of thermal...

AI Technical Summary

Problems solved by technology

However, in order to effectively control the heating temperature, it is not enough to rely solely on the temperature of the steam. It is also necessary to make a structural design for the cavity of the heating plate that is conducive to temperature control; the cavity space of the heating plate currently used is relatively large, and the thickness of the heating plate thicker, the thermal fluidity of the steam in the heat transfer process is poor, the heat energy consumption is fast, the thermal conductivity is poor, and the surface temperature of the heating plate is unstable, especially the temperature on the surface of the heating plate is not suitable for the effect of heating three, five, and seven layers of cardboard. to effective control

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