Abstract: A method for folding sheets of a medium is provided. The method includes rotating a cam mechanism through a first period of rotation to cause a crease blade to move in a contact direction to create a crease in the sheets by pushing the sheets between a pair of first rolls, and rotating the cam mechanism through a second period of rotation to cause the crease blade to move in a retracting direction away from the sheets and cause a lever to move first and second scissor arms such that the pair of first rolls is separated and a pair of second rolls is separated. One of the second rolls is movable by the second scissor arm.

Abstract: A device for folding sheets of a medium is provided. The device has a frame; a cam mechanism attached to the frame; a lever attached to the frame, the lever being actuated by the cam mechanism; a first scissor arm attached to the frame, the first scissor arm being actuated by the lever; a pair of first rolls, one of the first rolls being movable by the first scissor arm; a second scissor arm attached to the frame, the second scissor arm being actuated by the lever; a pair of second rolls, one of the second rolls being movable by the second scissor arm; and a crease blade for contacting the sheets to create a crease in the sheets. Rotation of the cam mechanism through a first period of rotation causes the crease blade to move in a contact direction to create the crease in the sheets by pushing the sheets between the first rolls.

Abstract: A device for folding sheets of a medium is provided. The device has a frame; a cam mechanism attached to the frame; a lever attached to the frame, the lever being actuated by the cam mechanism; a first scissor arm attached to the frame, the first scissor arm being actuated by the lever; a pair of first rolls, one of the first rolls being movable by the first scissor arm; a second scissor arm attached to the frame, the second scissor arm being actuated by the lever; a pair of second rolls, one of the second rolls being movable by the second scissor arm; and a crease blade for contacting the sheets to create a crease in the sheets. Rotation of the cam mechanism through a first period of rotation causes the crease blade to move in a contact direction to create the crease in the sheets by pushing the sheets between the first rolls.

Abstract: A rotary blade device for interacting with printed materials has a rotating arm, a first pulley rotatably supported on the rotating arm, a first blade fixed to the first pulley, a fixed pulley, and a first belt connecting the first pulley to the fixed pulley so that as the arm rotates, the first pulley rotates with respect to the arm.

Abstract: A signature transport device has a conveyor for moving a plurality of signatures in a first direction, and a rotary blade device having a first blade having an edge for lifting a first signature of the plurality of signatures from the conveyor, the edge being parallel to the first direction, and the first blade rotating about an axis perpendicular to the edge. A printing press and rotary blade device are also disclosed.

Abstract: A rotary-blade folding unit includes at least one folding blade, a pair of folding rollers and a drive for producing a hypocycloid movement of the folding blade about a rotational axis of the folding blade and a main rotational axis for folding a signature that has been guided up to the rotary-blade folding unit in a transport plane extending between the main rotational axis and the folding rollers, and further includes a drive mechanism for producing an oscillatory movement of the folding blade at least approximately parallel to the main rotational axis; a folder including the folding unit; and a printing machine in combination with the folder.

Abstract: A folder includes a collect cylinder having at least one gripper for receiving signatures, and at least one first tucker and a jaw cylinder having at least one first jaw for interacting with the first tucker, the at least one first jaw including a stationary jaw part and a movable jaw part, the stationary jaw part and the movable jaw part being settable independently with respect to the first tucker.

Abstract: A gripper deceleration cross folder device having a rotatably mounted jaw cylinder including a plurality of jaw devices, a rotatably mounted gripper decelerator drum forming a nip with the jaw cylinder, and a plurality of gripper decelerator devices mounted on the gripper decelerator drum, each gripper decelerator for gripping and decelerating one of a plurality of signatures at a time. A respective tucking device corresponding to each of the plurality of gripper decelerator devices for tucking each one of the signatures into a corresponding one of the plurality of jaw devices after the decelerating of the signature so as to fold the signature.

Abstract: An arrangement for controlling folding processes in roller rotary printing machines comprises a must for producing a fold, a cutter cylinder, and a displacing device which axially displaces the cutting cylinder before and/or during a folding process by a magnitude of a pre-folding.

Abstract: A cylinder folding apparatus for a rotary printing press uses a collection and cutting cylinder in cooperation with a solid folding blade cylinder. A paper web train is cut into sections and is folded by transverse folding rollers. The point spur sets on the folding blade cylinder release signatures prior to commencement of the folding procedure. A brush roller is used to maintain contact between the signatures and the folding blade cylinder after release of the point spur set.

Abstract: Folder for cross folding printing products which have been cut from a web by a cutting device includes at least one cross folding device having a tucker blade cylinder and a folding jaw cylinder, the folding jaw cylinder having at least one folding jaw formed as a multiple jaw, the multiple jaw having a plurality of contiguous clamping jaws for holding a plurality of printing products brought together simultaneously while being cross folded; and method of cross folding.

Abstract: A folder (58) of the type having a folding cylinder (16) cooperating with a jaw cylinder (20) to cut and fold a ribbon of paper (14) into a folded product (14') provided with a guide assembly (60) with a guide surface defined by a nonconcentric guide with a convex section (64) and a convex section (74) joined together end-to-end to form a generally S-shaped or approximately cubical parabolic guide surface which conforms to the natural flow shape of the product (14') for minimum interference therewith to reduce the formation of dog-ears.

Abstract: A folding machine for both inside and outside three folding operations comprising a cutter drum (1) having a saw blade (1a) thereon, a folding drum (2) having saw blade receivers (2a), needles (2b), and folding blades (2c), a first holding drum (21) having holding devices (21a) and folding blades (21c), a second holding drum (22) having holding devices (22a), and raising devices (23) for preventing the interference of web A disposed in proximity to the saw blade receivers (2a) on the folding drum (2) so that both inside and outside three folding operations can be performed.

Abstract: A composite type folding machine which cuts printed paper into cut sheets and selects between a mode in which the cut sheets are discharged one by one as a non-collected or separate folded sheet alternately into two directions and a mode in which two collected folded sheets of different kinds are discharged into a single direction is disclosed.Two gripping cylinder provided at the discharging side in this machine are disposed at different intervals compared with that of pin mechanisms comprised in a thrusting cylinder close to the gripping cylinders in which a rotary cam having cam portions to actuate each the pin mechanism with different modes is provided.In consequence, the phase of the rotary cam over the thrusting cylinder is changed to thereby choose one of the modes.

Abstract: To move folding jaws (4, 5) in a scissor-like or pincer-like movement symmetrical with respect to a center line (CL) and to permit adjustment of the gap or opening of the jaws, for acceptance of folded substrates of different thicknesses, the jaws are coupled together by a rotation reversal arrangement (14, 114, 112, 314) so that rotation of one of the carrier bodies (6) will be transferred as an equal and opposite movement to the other (7) of the carrier bodies. An axial position adjustment spindle (25, 125, 325), controllable by a hand wheel (29) or servo motor (30), changes the axial position of gears rotating or rotating with a shaft (2, 202, 402) of a folding jaw cylinder (1, 201, 401), at least some of the gears or gear pairs having inclined teeth, to thereby transfer a positioning movement into a relative rotary shift of the respectively rotating gear with respect to the gear driving the shaft, thereby causing rocking or tilting of the folding jaw carriers (6, 7).

Abstract: In the machine, a tabloid brochure produced from the strip is either stripped directly from a folding cylinder (30) or passed between the folding cylinder and a second fold cylinder at which a transverse, so-called second fold is made.The folding cylinder (30) comprises at least one insertion blade (37A, 37B) movable between two fixed positions, a deployed position in which it projects relative to the lateral surface of the cylinder and is adapted to cooperate with a jaw of the second fold cylinder, and a retracted position in which it is inside the folding cylinder, the insertion blade being adapted to be deployed when it is necessary to make said second fold and retracted otherwise.

Abstract: A web (17) received, for example, from an 8-page or 16-page printing machine, is severed in a cutter blade cylinder (6) needle-tucking blade cylinder (7) combination and the severed sheets are provided with a cross fold in a first system (A) formed by the combination needle-tucking blade cylinder (7) and a combination needle-cutter blade cylinder (12), to be then further cross-folded and cut in a second system formed by the combination of the needle-cutter blade cylinder (12) with a needle-folding jaw cylinder (13). To permit the second combination to be operative, the combination needle-cutter blade cylinder (12) is additionally formed with tucking blades (21) for engagement in the folding jaws (22) of the needle-folding jaw cylinder (13). This arrangement permits double cutting and folding, for example, of longitudinally folded superimposed webs into, selectively, 81/2".times.11" or A4 products and cross-folding them to 51/2".times.81/2 or A5 products.

Abstract: Accoumulator cylinder assembly for a folding machine of a printing press having tucking blades mounted on respective tucking-blade shafts and respectively associated with entrainer members mounted on entrainer shafts includes, for each entrainer shaft and each tucking-blade shaft, a latch fixed to the accumulator cylinder and having an operating position in which the latch blocks the shaft to prevent an roller thereof from being affected by a respective control region of a respective cam thereof and a non-operating position in which the latch does not act on the shaft; a latch-signal production device for generating at least one series of periodic signals according to an angular position of the accumulator cylinder, in order to cause it to operate in an accumulation mode; a device for enabling the latches to respond to the signals wherein each latch the operating position thereof when a signal is addressed to it, and the non-operating position thereof when no signal is addressed to it; and a device for select

Abstract: In the case of a folder with two production lines which each have a transverse folding means and a conveyor belt extending therefrom and of which at least one is provided with a longitudinal folding means having an associated conveyor belt running through it for the production of a second longitudinal fold, a high degree of ease of operation and accuracy in production are achieved since in the part between the transverse folding means and the longitudinal folding means the two production lines are connected with each other by at least one belt guide branch bridging over the distance between them and this branch is provided with an intake and a delivery bend roll and which together with the bend rolls is mounted on a pivot lever adapted to rock about an axis parallel to the bend roll.

Abstract: Folding apparatus for a printing press which employs a moving conveyor belt in conjunction with a rotating folding flap cylinder to fold and move a copy segment through the printing press. Suction apparatus is provided to remove the copy segment from a folding blade cylinder so that it may be directed to the folding apparatus.

Abstract: A folder, and more particularly an adjustable folder for web feed gravure presses, comprising a collect cylinder able to be set for collect runs and non-collect runs and provided with holding elements (preferably in the form of grippers) and tucking blades having actuating elements preferably in the form of follower rollers which are operated by a respective cam, whose active cam part, which is preferably in the form of a recess, is adapted to be selectively exposed and covered over by means of a covering means, which is coaxial to the cam and is provided with drive cam elements which are mounted on cam element carriers coaxial to the cam and are able to be driven. In order to achieve a high degree of adaptability as regards different types of collect operations the covering cam elements of the covering device are mounted on the cam element carrier in such a manner that they may be radially adjusted.

Abstract: To match the speed of a folding flap cylinder (12) folding sheets cut from a web in half to a slower speed of a gripper chain delivery system (17, 18), a transfer cylinder (15) with grippers (16) is provided which operates at a circumferentially non-uniform speed (FIG. 3, curve 30), in which the speed of the transfer cylinder (15), when receiving a sheet from the folding flap cylinder (12), is essentially synchronous therewith, and then decelerates to be essentially synchronous with the speed of the gripper chain delivery system (17), for subsequent acceleration to the speed of the folding flap cylinder. The circumferentially non-uniform speed is obtained by driving the transfer cylinder (15) through a worm transmission in which the worm has a non-uniform pitch or non-uniform angle of inclination of the worm groove or the respective worm lands defining the groove.

Abstract: In the context of a folder for the production of products having at least one transverse fold and a cut parallel to the transverse fold, comprising a transverse cutting means, at least one transverse folding means and at least one smooth cut means made up of (a) scissors cut knives mounted on a folding cylinder which is provided with folding jaws (which cooperate with the tucker blades of a collect cylinder) in the part between the folding jaws and (b) at least one mating scissors cut knife set towards the peripheral part of the folding cylinder moving from the collect cylinder, the invention seeks to provide for simple resetting of the smooth cut and the possibility of stopping the production of smooth cuts during operation.

Abstract: To permit compact construction, a combination cylinder (3) having thereon cutting grooves for cooperation with cutting knives (5) of a cutting blade cylinder (4), grippers (7) and folding blades (8) receives a web or a plurality of superposed webs (2), to be cut into cut copy products or elements (17). The elements (17) are transferred to a collection cylinder (10), to be gripped by grippers (11) thereon and transferred to grippers (13) on a stapling head cylinder (12). The stapling head cylinder, if the stapling heads are energized, staples the webs together, and transfers them to grippers (7) on the combination cylinder which, in turn, folds the stapled sheets by operation of the folding blades thereon in association with folding jaws of a folding jaw cylinder (15) located adjacent the combination cylinder. The stapling head cylinder and the folding jaw cylinders are located, at least in part, laterally of the combination cylinder, so that the apparatus does not require substantial height.

Abstract: A folding cylinder for a folder capable of collect run and straight run is provided with protrusions of a height corresponding to the thickness of an inside section to be folded on the folder. The protrusions are extended or arranged beyond the corresponding cutting knife receiving members adjacently thereto respectively so that portions of the papers on both sides of a cutting line are pressed firmly against the circumference of the folding cylinder and the top surface of the protrusion of protrusions in a state of tension to allow precise cutting.

Abstract: For manufacture of booklets consisting of an inner portion and a cover having material different than the inner portion on a folding apparatus including a collecting cylinder, two successively-disposed band guidances associated with the collecting cylinder, surrounding two successively-disposed peripheral segments of the collecting cylinder. One band guidance surrounding the rear peripheral segment transports web segments from which the inner portion is assembled to the collecting cylinder, while the other band guidance which surrounds the front peripheral segment delivers web segments forming a cover to the collecting cylinder. The collecting cylinder is provided with holding members which grip the leading edges of the web segments being set thereon, the holding members being activated in the region of the front peripheral segment. The holding members being inactivated following the completed collection process after passing the folding flap cylinder associated with the collecting cylinder.