Seal roll index

Details Seal roll index Seal roll index

1997-03-05

1998-07-28

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563084, 156538, 156553, 1565831, 493193, 493196, 493267, B31B 110, B31B 2300

Patent

active

057857946

ABSTRACT:
An apparatus for indexing a seal roll which is engagable by a heat seal head to prevent the contact area of said heat seal head from successive landing at the same location on the seal roll includes a driven pulley mounted coaxially with the seal roll and components for indexing to turn the driven pulley. The components include a rocker mounted on a common axis with a drive pulley via a one-way clutch and an actuator connected eccentrically to the rocker such that reciprocating motion of the actuator rotates the rocker in opposite directions. In one direction, the rocker rotates the drive pulley via the one-way clutch to index the roll via the drive belt and driven pulley. In an opposite direction, the clutch permits rotation of the rocker in the opposite direction free of rotation of the drive pulley. A brake member is connected to the rocker eccentrically of the common axis, the brake member clamping the drive belt against a stop member for seizing rotation of the roll during the heat seal procedure.

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patent: 5230688 (1993-07-01), Hatchell et al.
patent: 5338281 (1994-08-01), Terranova
patent: 5647832 (1997-07-01), Nickell et al.

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