Coating apparatus – Solid member or material acting on coating after application – Web or belt member
Patent
1985-11-01
1988-10-18
Mackey, Robert R.
Coating apparatus
Solid member or material acting on coating after application
Web or belt member
118122, 366162, 366177, 366349, 425372, B05C 1102, B01F 500, B01F 1502
Patent
active
047779063
ABSTRACT:
Apparatus is shown for mixing and dispensing an epoxy adhesive. An epoxy resin and its associated curing agent are simultaneously loaded from separate cartridges into a length of flexible PVC tubing, part of which is contained between a rotor and a stator. Bearings, mounted rotatably about the rotor, engage and travel along the tubing as the rotor is revolved, each bearing compressing the tubing at its point of engagement. The tubing, repeatedly compressed and released by each bearing in succession, kneads the epoxy resin and curing agent into a homogeneous mixture. From the tubing, the epoxy mixture is deposited on a moving carrier tape and forms a continuous bead. Downstream, a control tape is spaced apart from the carrier tape and moves in the opposite direction. As the bead encounters the control tape, the control tape removes part of the bead material from the carrier tape and plastically forms the remaining mixture into a film of a uniform thickness substantially less than the bead diameter. Further downstream, an automatic pick-up device contacts the film over a controlled area and thus picks up a controlled amount of the epoxy mixture.
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Mourning Richard C.
Nygren Gordon W.
Genovese Joseph A.
Mackey Robert R.
Magnetic Peripherals Inc.
Schwarz Edward L.
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