Carton sealing machine with safety stop of the conveying belts a

Details Carton sealing machine with safety stop of the conveying belts a Carton sealing machine with safety stop of the conveying belts a

1983-01-05

1985-09-03

Bray, W. D.

Package making

With means responsive to a sensed condition

Of individual contents or group feed or delivery

53 76, 100 7, 198627, 198726, 198855, 493117, B65B 130

Patent

active

045383987

ABSTRACT:
A carton sealing machine for sealing cartons in which a clutch is provided to connect a pair of oppositely disposed conveyor belts for movement thereof from a driving motor. The clutch transmits motion from a driving motor to a pair of approachable conveyor belts, and three sensors are successively arranged along a sealing area to sense the position of advancing cartons advancing through the sealing area; the first sensor is positioned at the inlet of the sealing area to cause a lifting of the sealing head from a lowered rest position, the second sensor is slightly advanced along the path in the sealing area with respect to the first sensor to cause the conveyor belts to move to approach each other in a direction transverse to the direction of carton movement, from a removed rest position, and a third sensor is positioned at the outlet of the sealing area to move the conveyor belts away from the sides of an engaged carton to return the conveyor belts to the removed rest position; and the clutch and the third sensor are operatively connected to cause the disconnection of a driving motor from the conveyor belts for the subsequent stopping thereof, to thereby avoid accidents as a result of conveyor belt movement between sealing operations for sequential cartons.

REFERENCES:
patent: 3595369 (1971-07-01), Boulay
patent: 4044527 (1977-08-01), Ulrich et al.
patent: 4079573 (1978-03-01), Livingston et al.
patent: 4161138 (1979-07-01), Marchetti
patent: 4262469 (1981-04-01), Ooms et al.
patent: 4392911 (1983-07-01), Ulrich et al.

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