Carton sealing strip applicator
AssigneeAB Akerlund & Rausing
InventorHans Rolf Ingemar Linner
Life of this patent
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Abstract
A packaging machine is disclosed in which carton sealing is accomplished by applying a sealing ribbon to an open end of a folding flap carton in a series of same. The ribbon is then cut, withdrawn a predetermined distance, adhered to an open end of the next carton in the series and ribbon tension is relieved as the next carton is fed with the ribbon adhered thereto.
Claims7
Sealing strip applicator apparatus for use in a packaging machine in which a series of folding boxes are fed one after another in a predetermined direction with substantially constant center-to-center distances and a sealing strip is applied to at least one open end of each folding box, the sealing strip being formed by cutting a length from a continuous ribbon of sealing material, said apparatus comprising:
- means for feeding said sealing ribbon;
- means for cutting said ribbon at a cutting station;
- means responsive to the operation of said cutting means for withdrawing the sealing ribbon a predetermined distance so that the leading edge of said ribbon is aligned with the leading edge of the next folding box as seen in the withdrawal direction, said withdrawing means including a pair of rollers adapted to be pressed into engagement with each other, one of said rollers being driven, the ribbon running between said rollers, and means for moving the other of said rollers, said moving means operative for a predetermined time after the operation of said cutting means to move said other of said rollers into pressure engagement with said driven roller with the ribbon engaged therebetween for driving engagement by said driven roller, in a direction opposite to the ribbon feeding direction;
- and
- means for adhering the ribbon over said open end of said next folding box.
Dependencies are inferred from the claim text.