Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to attribute – absence or presence of work
Patent
1985-04-25
1987-02-24
McIntosh, John P.
Coating apparatus
Control means responsive to a randomly occurring sensed...
Responsive to attribute, absence or presence of work
118674, 118413, 118415, 118 34, B05C 502
Patent
active
046449000
ABSTRACT:
Coating apparatus (10) is disclosed which includes a foam table assembly (A), a coating roll (D), and an automatic trough control system (58). A blade assembly (B) having a coating blade (44) may be selectably positioned over a foam table (20) of the foam table assembly (A) or the coating roll (D) depending upon the type of coating technique desired. A roll mandrel assembly pivotably supports the coating roll (D) by means of a pair of pivot arms (124, 126). Air cylinders (138, 140) provide a constant pressure on the pivot arms which holds the coating roll (D) in a coating position under the constant pressure. The coating roll deflects upon the passage of a thickened seam portion (S) of the fabric. During the deflection, the constant pressure is maintained on the coating roll. The support arms (124, 126) are carried on carriages (102, 106) to move the support arms laterally to accommodate different length coating rolls. The automatic trough control system (48) includes an actuator member (80) which reciprocates in horizontal directions under the influence of an actuator (86) to move a trough (74). The trough is moved to a closed position against the coating blade (44) to prevent the application of coating material should the fabric travel stop. Upon resumption of the fabric travel, the actuator (86) opens the trough to the gap position wherein a desired gap is formed between the trough and the blade. An adjustable limit stop (94) engages an abutment (88) carried on the actuating member (80) to set the trough in the desired gap position upon reopening of the trough.
REFERENCES:
patent: 2022322 (1935-11-01), Pelton
patent: 3402695 (1968-09-01), Baker et al.
patent: 4089296 (1978-05-01), Barchz
patent: 4497273 (1985-02-01), Matter
Flint Cort
McIntosh John P.
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