Patent ID: 8307870
Filing Date: 2012-11-13
Classification: B31F

Abstract:
1. A heat plate unit for fabricating a double-faced corrugated fiberboard included in a double facer that fabricates a double-faced corrugated fiberboards by gluing a single-faced corrugated fiberboard in a swath form and a linerboard together, the heat plate, being horizontally disposed and having a top surface on which the single-faced corrugated fiberboard in a swath form and the linerboard overlapping and being glued together travels, comprising: a rib, disposed on a bottom surface of a heat plate, extending in a width direction of the heat plate, being coupled to the heat plate to form an integrated body, and being capable of thermal expansion; and temperature controlling means that controls a temperature of the heat plate and a temperature of the rib independently of each other, wherein the temperature controlling means is connected to a database that stores material condition and production condition of the double-faced corrugated fiberboard and optimum target temperatures of the heat plate and the rib that inhibit warp of the double-faced corrugated fiberboard in association with each other, and the temperature controlling means comprises