Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1995-12-05
1999-03-16
Lorin, Francis J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
156578, 156908, 118224, 118667, B05C 914, B05D 128
Patent
active
058824693
ABSTRACT:
A machine for attaching a book cover to endsheets within an adhesive is set forth. The adhesive is applied while it is within a predetermined temperature range. The machine includes a housing, an application roller journalled within the housing, and a metering roller journalled within the housing. The metering roll is axially parallel to the application roller and nearly contacts the application roller at a nip. The region above the nip defined by the application and metering rollers, and two internal seals with the housing is an adhesive reservoir. The adhesive remains in this reservoir before it is applied by the application roller. The machine also includes a level detector which detects the level of the adhesive in the adhesive reservoir. The level detector is coupled to a controller and produces a low level signal when the level of the adhesive is below a predetermined level threshold. Once this condition occurs, a transport means for transporting the adhesive from a main reservoir to the adhesive reservoir begins operation. A temperature sensor which measures the temperature of the application roller is also included. When the temperature of the application roller is below a predetermined range, heaters attached to the application roller begin operation. As such, the machine applies a hot melt adhesive within the appropriate temperature range consistently along the entire endsheets.
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Danhoff Jerald P.
Detterman Don E.
Habegger Jeffrey D.
Lambert Carolyn S.
Lorin Francis J.
R. R. Donnelley & Sons Company
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