Patent ID: 7455093

Claim:
A device for enhancing adhesion of a single faced corrugated paperboard whose corrugated side is applied with adhesive and a liner into a double-faced corrugated paperboard when passing over a hot plate beneath said liner during a manufacturing process of said double-faced corrugated paperboard, said device comprising a plurality of flexible pressurizing members and a plurality of lifting members, wherein: each of said pressurizing members is suspended by two of said lifting members on a top of a non-corrugated side of said single-faced corrugated paperboard opposite to said hot plate; said pressurizing members are arranged in parallel along advancing direction of said singled-faced corrugated paperboard and said liner; said pressurizing members are lowered down onto said single-faced corrugated paperboard by said lifting members and weight of said pressurizing members jointly provides uniform pressure to said single-faced corrugated paperboard; and each of said lifting members comprising a telescoping rod whose bottom end is fixedly attached to a location on one of said pressurizing members, and said pressurizing members are lowered down onto said single-faced corrugated paperboard by descending said telescoping rods from said lifting members, degree of descending of each of said telescoping rods is adjusted in accordance with a desired pressurizing area of said single-faced corrugated paperboard.