Abstract: A cylinder is usable for processing flat material and includes a cylindrical body, which can be rotated about a cylinder axis, and at least one group of a plurality of tools. These tools perform a working movement in relation to the cylindrical body and are coupled to first and second control levers. A fixed cam plate is followed by the first control lever of each tool. A rotating cover disk is followed by the second control lever of each tool. The cover disk comprises a plurality of congruent sectors each having at least one section with a first radius which allows that tool to accomplish its working movement. The cover disk sectors each also have at least one section with a second radius which blocks the working movement of the tool.

Abstract: A folding apparatus includes a folding blade cylinder that carries at least one group of identical tools which are distributed homogeneously about the periphery of the folding blade cylinder. A cam plate is traced or followed by a control lever of each such group of tools and is usable to control a working movement of the tool. A cover disk, consisting of a plurality of cover cams, can be rotated. The cover cams of the cover disk are displaceable between an inactive position, in which they enable the control of the working movement by the cam plate, and an active position in which they prevent such movement. Two groups of tools are used on the folding blade cylinder and the cover cams form a first group of cams at an angular distance of between 60° or 120° to each other, and a second group of cams at an angular distance of between 90° to 180° to each other.

Abstract: A paper folding device having a function of alternately switching a bending direction to carry out folding continuously a plurality of times. The paper folding device comprises first and second pairs of folding roller pairs that bend a paper; a carry roller pair that feeds the paper to the first or second folding roller pair; and a biasing device for switching a direction in which the paper is bent by the first or second folding roller pair. The biasing device brings the paper into contact with one (lower side) folding roller of the folding roller pair on a side where the paper folds, and the paper to be folded is carried and folded. When paper is caused to enter a nip of the left folding roller pair by the left shifting device, tension is applied to the paper by a right shifting device. Thus, the angle at which the paper winds onto upper side folding rollers is adjusted.

Abstract: A cylinder, having a cylindrical body which is rotatable about a cylinder axis of rotation, is usable to process flat material. At least one group of a plurality of tools are distributed around the periphery of the cylinder body in a homogeneous manner. These tools are able to perform a working movement with respect to the cylindrical body and are coupled to a control device which effects that working movement. A first cam plate is traced by the control device of each tool group. A rotatable cover disk is also traced by the control device of each tool group. The cover plate is rotatable and is coupled, for its rotation, to the rotation of the cylinder. The cam plate has a peripheral section that controls the tool working movement, in cooperation with the control device.

Abstract: An assembly to crease a paper set in a booklet maker is provided. A booklet is formed in a booklet marker when a crease blade strikes the middle of the stack and pushes it toward a set of nipped crease rolls. The assembly engages spring-loaded idlers against the crease rolls after the crease blade initiates the buckle of the stack and prior to creasing. The spring loaded idlers apply a drive force to the stack that assists the formation of the crease. With the assistance of this extra drive force, the crease blade tip can be stopped in time to avoid jamming while reducing the chance of getting a cover, or more sheets tearing off the booklet. This design is compact in size and therefore may also be retrofitted into existing designs.

Abstract: A sheet folding apparatus, including: a stacker configured to stack a plurality of sheets; a first folding roller configured to rotate around a first axis; a second folding roller configured to rotate around a second axis which is in parallel with the first axis and biased to the first folding roller separably to make a nip together with the first folding roller therebetween; a blade unit configured to push a surface of the plurality of sheets stacked by the stacker, into the nip; a first support configured to support the blade unit and configured to move linearly in a common tangential direction of the first folding roller and the second folding roller at the nip; and a second support configured to support the blade unit, configured to move linearly in the common tangential direction when the blade unit passes a section between where the blade unit starts touching at the plurality of sheets and where the plurality of sheets approaches the nip, and configured to deviate the blade away from the common tangenti

Abstract: A sheet folding apparatus, including: a stacker configured to stack a plurality of sheets; a first folding roller configured to rotate around a first axis; a second folding roller configured to rotate around a second axis which is parallel with the first axis and biased to the first folding roller separably to make a nip together with the first folding roller therebetween; a blade unit configured to push a surface of the plurality of sheets, stacked by the stacker, into the nip; a stationary support configured to support the blade unit linearly movable to avoid deviating from a common tangential direction of the first folding roller and the second folding roller at the nip to a first folding roller side; and a movable support relatively movable against the blade unit, configured to bias the blade unit to the first folding roller side deviatably from the common tangential direction to a second folding roller side.

Abstract: A sheet folding unit, including: a first folding roller configured to rotate around a first axis; a second folding roller configured to rotate around a second axis which is in parallel with the first axis and biased to the first folding roller separably to a separating direction to make a nip together with the first folding roller therebetween; a blade configured to push a surface of a sheet into the nip; and a roller cover configured to move together with the second folding roller in the separating direction to prevent the second folding roller contacting the sheet when the blade unit starts contacting the sheet.

Abstract: The present invention provides a method and apparatus for pleating paper. The apparatus includes a pair of pleating rollers, means to rotate one of said pleating rollers, a first pair of support rollers in supporting contact with a first of said pair of pleating rollers and a second pair of support rollers in supporting contact with a second of said pair of pleating rollers. Each of said pleating rollers has a plurality of radially reduced sections. An elongated pleating finger member is positioned in at least a plurality of radially reduced sections, and means are provided to movably support each of said elongated pleating finger members.

Abstract: An interfolding apparatus including a knife roll, a first interfolding roll, a second interfolding roll, and a transfer roll. The knife roll cuts sheets from a stream of web material issuing from a source in a downstream direction. The first interfolding roll is positioned downstream of the knife roll and receives the sheets. The first interfolding roll rotates in a first direction and the second interfolding roll rotates in a second direction. The first and second interfolding rolls interfold the sheets with additional sheets received by the second interfolding roll. A transfer roll is positioned between the knife roll and the first interfolding roll. The transfer roll has a non-uniform surface configuration and rotates in the second direction and receives the sheets from the knife roll, forms a bend in each of the sheets, and transfers the formed sheets to the first interfolding roll.

Abstract: A folding apparatus includes at least a first folding cylinder and a second, folding jaw cylinder. A third measuring cylinder is also provided. The measuring cylinder is usable to cut product sections or signatures of a determined length L from an endless web. The first cylinder is embodied, in one embodiment, as an engaging cylinder, and as a second embodiment as a puncture cylinder. In both embodiments, the product section or signatures which are produced, have the same length.

Abstract: An adjusting apparatus and method for a folding-unit cylinder is disclosed. The apparatus includes a linkage which can be set longitudinally by an adjusting drive which is arranged in the folding-unit cylinder. An adjusting member is articulated on the output side of the linkage and is mounted so as to be rotatable about the axis of the folding-unit cylinder and actuates the members which guide folded products.

Abstract: A cylinder, which is part of a folder, includes a cylinder body with at least one gripper that can be moved between a retracted position within the cylinder body; an extended position, and a clamping position in which a tip of the gripper presses flat material against a surface section of the cylinder body. A pivot axis, about which the gripper pivots between its retracted position and its extended position, is within the cylinder body. A counterthrust element, which cooperates with a separate cutting blade, to cut the flat material which is to be gripped by the gripper, is associated with the cylinder body. The gripper is situated upstream of the counterthrust element, in the rotational direction of the gripper cylinder. A second axis, about which the gripper moves in the peripheral direction of the cylinder, is also provided. Both of these axes are fixed in relation to the cylinder.

Abstract: A folding drum includes folding-drum side walls lying opposite one another, journals lying opposite one another and acting on the folding-drum side walls, a frame on which the folding drum is mounted rotatably via the folding-drum side walls and the journals, a folding-blade spindle arranged between the folding-drum side walls, at least one folding blade arranged on the folding-blade spindle, roller bearings for rotatably mounting the folding-blade spindle, and at least one device positioned laterally next to the roller bearings and serving to mount the folding-blade spindle in order to introduce a radial force into the folding-blade spindle and therefore to prestress the respective roller bearing in a radial direction.

Abstract: A method and machine for folding and finishing training pant diapers, whereby the diapers are formed from respective flat blanks, each of which is fed to a continuously-rotating, suction-type first wheel, and is folded into a U by clamping an intermediate portion of the blank on the first wheel by means of a folding member; retaining a trailing half of the blank on the first wheel, while detaching a leading half from the first wheel by means of a continuously-rotating, suction-type second wheel; transferring the leading half to a continuously-rotating, suction-type third wheel; and gradually superimposing the leading half of the blank onto the trailing half, as the trailing half advances on the first wheel, and after first removing the folding member from the blank.

Abstract: A folding-jaw cylinder of a folder for a printing press is disclosed. Actuable folding-jaw cheeks are assigned to a first cylinder part of the folding-jaw cylinder and fixed folding-jaw cheeks are assigned to a second cylinder part. Both cylinder parts are assigned one shaft, via which the cylinder parts can be driven rotationally. An intermediate gear is coupled on one side to a drive and on the other side to at least one actuating unit in such a way that the intermediate gear can be driven by the drive and inputs its drive into at least one of the shafts of the cylinder parts via the, or every, actuating unit, and the, or every, actuating unit is assigned an adjusting drive in order to adjust the two cylinder parts, and therefore the folding-jaw cheeks which are assigned to the cylinder parts, relative to one another.

Abstract: A variable length cutting device includes a cutting cylinder and a transfer cylinder. The transfer cylinder cooperates with the cutting cylinder for cutting a ribbon into signatures having a desired cutoff length. An adjustable diameter portion of the transfer cylinder can be moved in a direction toward and away from the central axis of the transfer cylinder for adjusting the desired cutoff length of the signatures.

Abstract: A folder includes a cut-off cylinder, etc. for cutting a web into sheets; a group of cylinders for folding each sheet into a signature in accordance with the selected folding specifications; and a conveyer apparatus, a fan wheel, a delivery conveyer, etc. for conveying signatures. In the folder, a cutting blade, etc. are disposed on the upstream side of the cut-off cylinder with respect to the feed direction of the web. When the folding specifications of signatures are changed or when the width of the web is changed, a control device operates the cutting blade to cut the web, and controls the feed of the web in such a manner that only a cut portion of the web present on the downstream side of the cut blade with respect to the feed direction is conveyed to the delivery conveyer.

Abstract: A folding apparatus of a rotary press which can select collect run or straight run comprises: a fixed pin cam 2 which performs operations of straight run and collect run; a correction pin cam 3 which stops in case of straight run, and protrudes/retracts a pin end portion with respect to an outer periphery of a folding cylinder once per two rotations of a folding cylinder 12 in case of collect run; a blade cam 4 which thrusts a blade of each blade device 16 into a jaw device 17 once per rotation of the folding cylinder in case of straight run, and thrusts the same into the jaw device 17 once per two rotations of the folding cylinder in case of collect run; switching means 62 for switching between a drive side connection and a stop side connection of the correction pin cam and the blade cam; and detecting means 61 for detecting a start-up timing of the switching means.

Abstract: A parallel folding device includes: a folding cylinder which transfers a signature; a first jaw cylinder having gripper boards; an upper second jaw cylinder in contact with the first jaw cylinder and having grippers; a lower second jaw cylinder in contact with and the first jaw cylinder and having grippers; and a cam mechanism, which switches delivery channels between a channel in which the signature is transferred from the gripper boards of the first jaw cylinder to only the grippers of any one of the upper and lower second jaw cylinders, and in which the signature is transferred to the grippers of the upper second jaw cylinder and the grippers of the lower second jaw cylinder; and a channel which concurrently performs the changing of phases for causing the respective gripper boards to operate, from the first jaw cylinder to the upper second jaw cylinder and/or the lower jaw cylinder.

Abstract: A paper-folding apparatus includes a hopper for holding one or more sheets of paper or other similar foldable media, a discharge feed and stripper assembly, a shuttle associated with the hopper operable to transfer a sheet of paper from the hopper to the discharge feed and stripper assembly, a conveyor that receives one or more sheets of paper from the discharge feed and stripper assembly, and a folding roller assembly that receives the one or more sheets of paper from the conveyor, folds, and then ejects the folded paper(s) from the paper-folding apparatus. A driver assembly including a motor and an arrangement of clutches is provided and is operable to actuate the shuttle, discharge feed and stripper assembly, conveyor, and folding roller assembly. A control panel is also provided to permit a user to manage and otherwise operate the paper-folding apparatus in an efficient manner.

Abstract: A method of tucking a pair of side panels into a body portion of a pant-like garment in which the fold locations can be controlled. The garment is positioned between an upper vacuum conveyor and a lower vacuum conveyor. Opposing vacuum zones from the upper and lower conveyors hold a front region of the garment away from a back region of the garment. While the garment is in the opened, or pulled apart, position, the side panels are pushed between the front and back regions toward one another.

Abstract: The folding machine comprises a pair of folding rollers (1, 3) rotating about axes essentially parallel to each other and defining a nip (5) through which a web material (N) to be folded passes. Disposed on each of the folding rollers are folding members (61, 61A; 63, 63A) which form folds on the web material parallel to the axis of rotation of the folding rollers. For each folding roller (1, 3) a transferring device (11, 13) is also provided to transfer packs of products folded by the folding rollers towards an unloading area (9), which comprises a plurality of separating fingers (15) movable along a closed path, from an area of engagement with the folded products to an unloading area of the folded products. Each of the transferring devices extends inside an annular groove (1G, 3G) of the respective folding roller (1, 3).

Abstract: The invention relates to a folding machine for the graphics industry. The machine has a folder, at least one pair of blade shafts following the folder, and a separate roll frame that supports the pair of blade shafts. In order to be able to perform changeover operations on the pair of blade shafts as ergonomically as possible without partial dismantling of the folding machine, the folding machine is equipped with a guide for the roll frame and with an actuating device (e.g., tooth rack, pinion, crank) for displacing the roll frame along the guide.

Abstract: A parallel folding apparatus of a folding machine comprises a first cylinder in contact with a second cylinder. A guide plate guides a signature transported on the lower circumferential surface of the second cylinder after being double-folded by grippers of the second cylinder in cooperation with knives of the first cylinder. The guide plate comprises a stationary guide located downstream, in the rotating direction, of the point of contact between the first cylinder and the second cylinder and disposed continuously along the circumferential surfaces of the first cylinder and the second cylinder, and a moving guide movable in accordance with the operating speed of the folding machine between a position, closer to the circumferential surface of the first cylinder than the stationary guide, and a position, more remote from the circumferential surface of the first cylinder than the stationary guide.

Abstract: This invention provides an automatic paper folder with the adjustable distance between a retarder and a feeding wheel assuring the consistency of the automatic feed for most types of paper. The automatic paper folder includes a paper feed assembly that combines the functions of a retractable retarder and a retractable tension block, assuring the automatic feed of a stack of paper, and a bypass for the manual feed of the stapled sets.

Abstract: A folding gear is comprised of a cylinder that is mounted to a frame for rotation. At least one clamp is arranged on the outer surface of the cylinder. The at least one clamp can be positioned by an actuator which includes a flexible toothed shell that is shaped by a non-circular section of a shaft. A hollow gear engages this flexible shell and cooperates with it to form a harmonic drive gear.

Abstract: A method of forming an outsert having printed information thereon is disclosed in which a plurality of parallel folds are made in a sheet of paper in a first fold direction using a plurality of pairs of folding rollers and stop members to form an intermediate folded item and in which a plurality of cross-folds are made in the intermediate folded item to form the outsert. The cross-folds may be made to divide the length of the intermediate folded item into ten panels, fourteen panels, or eighteen panels.

Abstract: A variable-circumference folder includes a gathering cylinder fitted with pin systems for reliably holding products of different thickness fed to the gathering cylinder by an accelerating device without any adjustment effort.

Abstract: A folding drum of a folding device is comprised of at least one folding element and a transmission unit. The transmission unit has at least one toothed wheel which is coaxially arranged with respect to the rotational axis of the folding drum. The toothed wheel can be moved in the axial direction of the folding drum between at least two positions.

Abstract: An automate card package mailer for preparing card packages (60) composed of one or more cards(50) attached to matching carrier forms (33) for mailing has a carrier folding apparatus that is programmable to fold the carriers into different configurations including Z-fold, C-fold, bi-fold and no-fold, has a controller (42) that controls the movement of carriers by different amounts relative to a first folding arm to achieve different first folds, folds the carriers by pushing the fold location on the surface of the carriers into the nib of a first pair of folding pinch rollers with a first pivotally mounted folding arm after guiding the carrier with a slanted guide and an arcuate guide to the desired position beneath the folding arm, makes a second fold with a second pivotally mounted arm that pushes another fold location on a carrier into the nib of a second pair of rotating pinch rollers while a holding member holds a folded section upright in a well.

Abstract: A sheet folding apparatus for folding a set of sheets into two at a center thereof, includes: a sheet number recognition section that recognizes the number of sheets in the set; a pair of rotating rollers pressed against each other to form a nip portion; a blade member retractably moves with respect to the nip portion; and a blade member control section that controls the blade member to move toward the nip portion to push the set of sheets in the nip portion at a depth corresponding to the number of sheets recognized by the sheet number recognition unit.

Abstract: A folding cylinder includes a plurality of gripping devices supported on a first rotatable support with a first gripping device for holding a signature on the cylinder. A plurality of tucking devices are supported on a second rotatable support, the tucking devices including a first tucking device and a second tucking device. The first gripping device is located circumferentially between the first tucking device and second tucking device and a cover fixed to the second rotatable support extends circumferentially over the first gripping device between the first tucking device and the second tucking device. The cover has at least one aperture, with the first gripping device capable of extending through the at least one aperture. With the folding cylinder of the invention gaps between the tucking and gripping spiders can be eliminated.

Abstract: An interfolding machine, having first and second folding counter rotating rollers, a substantially cylindrical body and a plurality of folding means for engaging at a contact line (15) for making a stack of folded and/or interfolded sheets in a folding area. Each folding roller (1) is held by at least one support (10) arranged substantially opposite to the contact line in order to not impede folding operations in the folding area. Between the support and the folding roller, a bearing (20) is mounted that allows free rotation. The support holds the folding roller at an angular portion circumferentially unoccupied by folding elements or mechanical clamps and inclined at an angle with respect to a plane containing the axes of the two rollers. The support does not interfere with the adjusting operation of the folding roller and allows processing of the sheet or web of paper without interrupting continuity.

Abstract: An apparatus and method for automatically folding a sheet of media, for example, a photographic paper about a fold line, such that a album page is formed. The photosensitive media has images only on one side. A heat activated adhesive sheet is provided between the sides of the photographic paper during folding. The adhesive sheet when exposed to heated and pressure rollers, will cause the sides of the photographic media to be secured to form a single album page.

Abstract: A folding device includes a first partial cylinder and a second partial cylinder. These two partial cylinders form a cylinder body. The two partial cylinders are rotatable relative to each other and each partial cylinder includes first and second groups of functional elements distributed around the circumference of the partial cylinder. Each of the first and second partial cylinders is provided with its own dedicated drive motor to accomplish the rotational movement of each partial cylinder.

Abstract: A folding apparatus utilizes a primary drive motor, at least one cylinder that is driven for rotation by the primary drive motor, and a pair of folding rollers. The folding rollers can be driven for rotation by an auxiliary motor. The folding rollers can be coupled to the rotation of the cylinder by a differential drive that includes three drive take-off members. One of these is connected to each of the cylinder, the auxiliary motor, and the folding rollers.

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: In some embodiments of the present invention, a method and apparatus for folding sheets are disclosed in which single transverse folds are created by vacuum rolls in one operational mode and double transverse folds are created by vacuum rolls in another operational mode. The folder can have a low profile in which the axes of various elements and assemblies in the folder are located within height ranges relative to the height of a folding roll axis in the folder.

Abstract: In the production of (cigarette) packs of the hinge-lid-box type with round edges, preliminary deformation of blanks (10) is desirable for producing hinge-lid boxes of satisfactory quality. The preliminary deformation of the round edges takes place in the region of a rounding turret (18) during transportation of the blanks (10). The latter are deformed back into an essentially planar starting position upon leaving the rounding turret (18) and thereafter.

Abstract: In a booklet maker or sheet folder wherein one or more sheets are pushed through a nip formed by a pair of crease rolls, and wherein the crease rolls are driven by gears, a slip clutch is operatively disposed between one of the crease rolls and the gear driving the crease roll. The slip clutch compensates for the abrupt change in frictional coefficient experienced by the crease rolls when one or more sheets enter the nip.

Abstract: A device and a method are described for folding a flexible material web using at least one pair of counterrotating laying rollers, between which the material web may be fed to a folding location, the laying rollers being part of a laying carriage which is movable over the folding length of the material web with reversible orientation. The object of the present invention is to guide the material web to the folding location with its position and composition largely unimpaired. This object is achieved in that the laying carriage includes at least two transport bands, which rotate around the laying rollers and set them into motion, the material web is transportable at least partially guided between the transport bands, and the speed of the material web has the same absolute value as the speed of the transport bands.

Abstract: A web folding machine for folding a continuously fed web into folded segments is disclosed. The machine includes a frame upon which the other components of the machine are mounted. A web supply provides continuous web material to these other components of the machine, with multiple feeds of the web material being processed in parallel relationship to one another. In one embodiment of the invention, web is pulled from a web supply by a pull roll station, which engages the web material to feed it at an approximately constant feed rate to a metering roll station. After proceeding through the metering roll station, the web reaches the folding station, where the web it is folded into a folded segment. In yet another embodiment of the invention, the web is first fed to a folding board that folds the web longitudinally. After the web is folded longitudinally by the folding board, it is fed to a pivoting marker web guide station that periodically pivots to vertically displace the web to create a marker.

Abstract: In a booklet maker or sheet folder wherein one or more sheets are pushed through a nip formed by a pair of crease rolls, a pair of flexible gate members cover the nip while sheets to be folded are being loaded. When the sheets are pushed through the nip, the flexible gate members are displaced, allowing the nip to receive the sheets. Following feeding of the sheets, the flexible gate members spring back to a closed position.

Abstract: The folding machine with a collect run mode of this invention comprises folding cylinder fixed cam means for carrying out a straight run at pins, folding cylinder rotating cam means provided with covering section so as to enable rotation of the covering sections for covering a cam shape for carrying out the straight run, jaw cylinder fixed cam means for carrying out a straight run at jaw mechanisms, jaw cylinder rotating cam means provided with covering sections to enable rotation of the covering sections covering a cam shape for carrying out a straight run, drive transmission means for ensuring that the covering sections of the folding cylinder rotating cam means rotate at a predetermined rotational speed ratio with respect to rotation of the folding cylinder and that the covering sections of the jaw cylinder rotating cam means rotate at a predetermined rotational speed ratio with respect to rotation of the jaw cylinder, and switching means for switching over driving between the folding cylinder rotating cam

Abstract: A folding cylinder includes a frame having a work-side support and a gear-side support, at least one expansion segment for providing an effective diameter of the cylinder, the expansion segment being located between the work-side support and the gear-side support and spaced apart from at least one of the work-side support and the gear-side support, and an actuating device for contacting the at least one expansion segment and setting the effective diameter.

Abstract: To simplify and speed up folding of plate-like elements (1) along a fold line (2), more particularly in a continuous operation, a method and a an apparatus for folding plate-like elements (1) are proposed which eliminate the use of counter-impression elements in the region of the fold line (2). The apparatus includes a second impression device (6) that folds a second section (4) of the plate-like element (1) about the fold line (2) by a first force component oriented perpendicular to the plane of the second section (4). At the same time the second impression device (6) produces a second force component oriented in the plane of the second section (4) and acting in the direction of the fold line (2) to urge a first section (3) of the plate-like element (1) against a first impression device (5).

Abstract: A folding device for use with a rotary printing press includes a folding-jaw cylinder and a folding blade cylinder. The folding blade cylinder is movable with respect to the folding-jaw cylinder between a working position where it cooperates with the folding-jaw cylinder and a rest position where it is moved away from the folding-jaw cylinder.

Abstract: A jaw cylinder has sets of fixed and movable jaws arranged at circumferential spacings thereon for folding the printed sheets into signatures as the sheets are thrust into the jaw cavities by folding blades on a folding cylinder. The movable jaws are mounted fast on respective jaw carrier shafts for pivotal motion into and out of engagement with the fixed jaws. For such pivotal motion of the movable jaws, the jaw carrier shafts are engaged via cam followers with a jaw drive cam of annular shape mounted to the frame, so that the movable jaws successively pivot toward and away from the fixed jaws upon rotation of the jaw cylinder. A timing screw acts between the jaw drive cam and the frame to cause angular displacement of the former relative to the latter about the axis of the jaw cylinder, in order to time the opening and closing of all the sets of jaws to the thrusting of the sheets off the surface of the folding cylinder by the folding blades.

Abstract: A collecting cylinder for a folder unit is provided with at least one disk cam that has peripheral switching depressions. These switching depressions can be covered by using an auxiliary curved trajectory which is created by a pivoting drive. Switching levers are selectively blocked or unblocked by motor-driven rotatable switching parts.