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公开(公告)号:US20220402231A1
公开(公告)日:2022-12-22
申请号:US17641750
申请日:2020-09-02
申请人: Rengo Co., Ltd.
发明人: Takuji YANO , Hiroshi TAHARA
IPC分类号: B31F1/28
摘要: “A controller of a corrugated fiberboard sheet manufacturing apparatus can execute a steady operation where a corrugating roll rotates at a first set speed, a deceleration operation where the corrugating roll is decelerated to a second set speed, and an acceleration operation where the corrugating roll is accelerated to a third set speed. In the steady operation, the controller set an on-off valve to a closed state for steam supply to a hollow portion at a first set pressure by a pressure adjusting valve. In the deceleration operation, the controller maintains states of the valves. In the acceleration operation, the controller switches the on-off valve to an open state, and adjusts the pressure adjusting valve for steam supply to the hollow portion at a second set pressure.”