Resilient Gluing Rolls

Resilient gluing rolls are used to conform to stock irregularities and to provide better control over the amount of glue deposited. Both natural and synthetic rubber are suitable, but synthetic is usually best because of its high resistance to the absorption of solvents. The resilient surface is helically groved to control the amount of glue deposited. By varying the grooving, any range of coating required may be obtained. Many manufacturers of door and plastic face panels use a special composite grooving consisting of both helical and lengthwise grooves, which applies an even and economical glue line to one or two sides of the door frame assembly. The grooving is especially advantageous when using polyvinyl adhesives. This grooving tends to eliminate the “wring off” on the sides and trailing edge of the frame as it passes between the gluing rolls.

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