US 11,772,927 B2
Cross-fold module for a folding machine, and folding machine equipped therewith
Frank Bahmer, Bielefeld (DE); and Eduard Melcher, Bielefeld (DE)
Assigned to H+H GMBH & CO. KG, Bielefeld (DE)
Filed by H+H GmbH & Co. KG, Bielefeld (DE)
Filed on Oct. 13, 2022, as Appl. No. 17/965,320.
Claims priority of application No. 21202689 (EP), filed on Oct. 14, 2021.
Prior Publication US 2023/0123359 A1, Apr. 20, 2023
Int. Cl. B65H 45/18 (2006.01); B65H 45/16 (2006.01)
CPC B65H 45/164 (2013.01) [B65H 2404/254 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cross-fold module for a folding machine, having:
a bearing installation on which a sheet being infed in a feeding direction at least partially comes to bear;
a stop member against which a leading edge of the infed sheet comes to abut;
a cross-fold knife which is arranged above the bearing installation, extends in the feeding direction and is movable in a reciprocating manner in a folding-knife movement direction perpendicular to the feeding direction;
a pair of folding rollers, which are arranged below the bearing installation and opposite the cross-fold knife, and which form a folding roller gap in which a sheet is creased by the cross-fold knife for folding, thus forming a folded product; and
a delivery transport device for the folded product, which is configured to receive the folded product in a receiving portion close to an outlet of the folding roller gap and to transport the folded product to a delivery portion in a direction transverse to the feeding direction and transverse to the folding-knife movement direction;
wherein the cross-fold knife and the pair of folding rollers are adjustable in a direction transverse to the feeding direction and transverse to the folding-knife movement direction;
wherein the delivery transport device is formed by at least one pair of continuous, driven belts, which belts are directly mutually opposite at least in a transport portion extending from the receiving portion to the delivery portion, and between which belts a portion of the folded product is sandwiched in the transport portion, and
wherein a length of the transport portion is variable during the adjustment of the cross-fold knife and the pair of folding rollers.