Process and apparatus for changing reels in connection with packaging machines
AssigneeFocke & Co. (GmbH & Co.)
InventorsHeinz Focke, Kurt Liedtke
Life of this patent
Estimating the term…
Abstract
To change reels (11, 12) of packaging material in or on packaging machines, a front region of a connecting sheet (13) is held ready in an exact relative position in a common conveyor track (18). When the end of a run-off sheet (10) is reached, an end piece of the latter is severed, so that the run-off end and the front end of the sheets of material (10, 13) can be conveyed (further) in an exact position to one another.
Claims26
An apparatus for introduction of a material sheet made of relatively stiff packaging material, particularly thin cardboard, for manufacturing pieces for rims of a cigarette flip-top pack to at least one of a separation and a packaging system by means of a conveyor track (18) leading to the packaging system, the apparatus comprising:
- (a) a first and second reels (11, 12) having first and second sheets (10, 13) wound therearound, respectively;
- (b) alternative conveying means (19,20 and 20,21) for alternately conveying the first and second sheets along the conveyor track in a feeding direction, the one of the sheets being conveyed functioning as a run-off sheet, and the other of the sheets functioning as a connecting sheet;
- (c) means (16,17), provided following, in the feeding direction, the alternative conveying means, for pulling the run-off sheet along the conveyor track;
- (d) a cutting device (33), provided along the conveyor track, for severing an end piece of the run-off sheet;
- (e) means (38) for actuating the alternative conveying means;
- and
- (f) coupling means (42,43,44), linked with the means for actuating the alternative conveying means, for actuating the cutting device at substantially the same time as the actuation of the alternative conveying means.
A method for replacing a first material sheet (10) which wound around a first reel (11) with a second material sheet (13) which is wound around a second reel (12), the first and second material sheets being made of a relatively stiff packaging material, particularly thin cardboard, for removal of rim pieces of a cigarette flip-top pack, the method being for use in connection with a packaging machine, particularly a cigarette packaging machine, the method comprising the steps of:
- (a) passing the first material sheet along a conveyor track (18), in a feeding direction, to at least one of a separation and a packaging system;
- (b) delivering the front end (29) of the second material sheet to a first point along the conveyor track;
- (c) cutting a trailing end portion of the first material sheet at a second point on the conveyor track, the second point being at substantially the same point as the first point with respect to the feeding direction;
- and
- (d) passing the second material sheet along the conveyor track in the feeding direction at substantially the same time as the step of cutting is performed.
A method for replacing a first material sheet (10) which is wound around a first reel (11) with a second material sheet (13) which is wound around a second reel (12), the first and second material sheets being made of a relatively stiff packaging material, particularly thin cardboard, for removal of rim pieces of a cigarette flip-top pack, the method being for use in connection with a packaging machine, particularly a cigarette packaging machine, the method comprising the steps of:
- (a) passing the first material sheet along a conveyor track (18), in a feeding direction, to at least one of a separation and a packaging system;
- (b) cutting a trailing end portion of the first material sheet at a severing point on the conveyor track;
- (c) positioning a front end (29) of the second material sheet substantially at the severing point;
- and
- (d) preventing the front end from passing beyond, in the feeding direction, the severing point until the step of cutting is performed.
Dependencies are inferred from the claim text.