Apparatus for producing (cigarette) packs from at least one foldable blank
AssigneeFocke & Co. (GmbH & Co.)
InventorsHeinz Focke, Wolfgang Oertel
Life of this patent
Estimating the term…
Abstract
Apparatus for producing packs from at least one foldable blank, especially soft-cup cigarette packs, in which, in a transfer station, individual blanks can be fed by means of a feed unit with a blank-holder to a receptacle (hollow mandrel) of a folding turret and can be transported by this in order to make folds, each blank (21, 22) for taking up by a receptacle (hollow mandrel 23) of the folding turret (20) is held so as to project freely on one side by the blank-holder (holding disc 68) fixed in place and arranged outside the path of movement of the receptacles (23).
Claims29
Apparatus for producing soft-cup packs for cigarettes from at least one foldable blank, comprising in a blank transfer station (35, 36):
- a continuously rotating folding turret (20, 24) having fixed around its periphery a plurality of hollow receptacles in the form of hollow mandrels (23) each of which is elongated in a direction parallel to the turret's axis of rotation, and each of which has a first end, fixed to said turret (20, 24), and an opposite free end projecting axially away from said turret (20, 24);
- and
- a blank feed unit (31, 32) for feeding individual rectangular blanks (21, 22) to successive ones of said hollow mandrels (23) of said continuously rotating turret (20, 24);
- said blank feed unit (31, 32) comprising a stationary blank holder in the form of a holding disc (68) for holding a blank for transfer to the free end of a passing mandrel (23) of said continuously rotating turret (20, 24);
- said holding disc (68) being disposed out of the path of movement of said mandrels (23), and axially adjacent to the free ends of said mandrels (23);
- said holding disc (68) having means for gripping only a lateral edge strip of a blank so that the majority of the blank extends axially in a direction toward said rotating turret (20, 24) and into said path of movement so that the blank (21, 22) is engaged by, and transferred to, a passing mandrel (23);
- said holding disc (68) having a peripheral surface on which said blank is held by said gripping means, and which has a circumference greater than the blank's length in the circumferential direction of the disc, so that the blank is held, on only a portion of said peripheral surface of the holding disc, in the form of a stable curved partial cylinder having in said majority portion thereof a gap located to receive an on-coming mandrel (23).
Apparatus for producing soft-cup cigarette packs from at least one foldable blank (20, 21), in which, in a transfer station (35, 36), a blank-feeding unit (31, 32), including a blank-holder, feeds individual blanks (21, 22) to a receptacle, in the form of a hollow U-shaped mandrel (23), of a folding turret, and each blank is transported by the mandrel in order to make folds in the blank, characterised in that:
- said blank holder comprises a holding disc (68) which holds each blank (21, 22) for taking up by a hollow mandrel (23) of the folding turret (20), the blank being held so as to project freely on one side said holding disc (68) being stationary and arranged outside the path of movement of the mandrels (23);
- the blank-holder is designed as an intermittently driven holding disc (68) having a peripheral surface on which only a lateral edge strip of the blank (21, 22) is held by means of suction air;
- said holding disc (68) holds the blank (21, 22), so that the blank surrounds the holding disc (68) along only a part of the peripheral surface thereof, in such a way that the blank assumes the form of a stable part cylinder having a gap for permitting the entry of a hollow mandrel into the blank (21, 22), the gap being formed on the blank's side located at the rear in the conveying direction of the respective mandrels (23);
- there is provided means for fixing the blank (21, 22), immediately after the blank is received by a hollow mandrel (23), the blank in the region of a front narrow side face (27) of the mandrel and subsequently in the region of a wider inner face (29) and opposite outer face (30);
- said fixing means comprises first and second pressing devices (94, 106) which are advanced alternately towards the front and a rear side face (27, 28) of the hollow mandrel (23) in order to fix parts of the blanks (21, 22) to the mandrel;
- and
- said first and second pressing devices (94, 106) being arranged between successive hollow mandrels (23) said two pressing devices (94, 106) being separately pivotable and being of differing designs, and of which a first pressing device (94), serving for fixing to the mandrel the blank (21, 22) received by a hollow mandrel (23), is provided with a hollow U-shaped profile open on one side, and the other pressing device (106) is provided with a pressing rod which projects on one side and which penetrates into the hollow profile of the first pressing device (94).
Dependencies are inferred from the claim text.