Device for folding flaps of a box blank and maintaining the fold

Details Device for folding flaps of a box blank and maintaining the fold Device for folding flaps of a box blank and maintaining the fold

1987-04-13

1988-10-11

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493181, 493423, 493441, B31B 158

Patent

active

047768312

ABSTRACT:
A device supported on a tubular frame and having a vertical cheek supporting pulleys including drive pulley and tension pulley, a belt having a circular cross section running over these pulleys and cooperating with a lower conveyor to fold parts of a composite flap of a box blank as the blank passes therebeneath. Depending on the construction of the box blank, several cheeks with associated pulleys and belts can be positioned above the conveyor conveying the blanks therethrough. Preferably, the belt has a circular cross section and moves at a linear speed approximately the same as the conveyor of the device.

REFERENCES:
patent: 1641970 (1927-09-01), Henderson
patent: 1903243 (1933-03-01), Peck
patent: 3229596 (1966-01-01), Hottendorf
patent: 3285144 (1966-11-01), Frei
patent: 3618479 (1971-11-01), Shields

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