Double facer for use in corrugated fiberboard sheet manufacturing system
US6854496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31F1/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A double facer for use in a corrugated fiberboard sheet manufacturing system wherein a moisture content of a double faced corrugated fiberboard sheet is set at an optimum value at all times for stably producing the double faced corrugated fiberboard sheet with less bonding failure and less warp. The double facer comprises moisture content detecting means for detecting a moisture content of the double faced corrugated fiberboard sheet after passed through the heating means or for detecting a parameter correlating with the moisture content, and a control means for controlling a heat reception quantity of the double faced corrugated fiberboard sheet on the basis of a detection result from the moisture content detecting means so that the moisture content of the double faced corrugated fiberboard sheet approaches a predetermined optimum moisture content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.