Abstract: A sheet folding device includes a transport unit that transports a sheet; an abutting unit that abuts an end of the sheet being transported to form a bent portion at the sheet; a folding unit that nips the bent portion of the sheet by a pair of folding rollers to form a fold line in the sheet; a guide member that partially covers the folding roller and guides the sheet; and a position adjustment unit that adjusts a position of the guide member. An exposure amount of the folding roller with respect to the sheet can be varied by adjusting the position of the guide member through the position adjustment unit.

Abstract: A sailor roll includes pressing rolls and a center roll provided between the pressing rolls the center roll configured to press a central region of a web. The portions of the web pressed down by the pressing rolls serve as a fold origin from which the web is folded. Each of the pressing rolls has a tapered shape in which the diameter becomes smaller toward the outer side in the cross direction CD. In other word, the pressing rolls respectively have tapered surfaces tapered toward a side region of the web.

Abstract: A sheet folding device includes a transport unit that transports a sheet; an abutting unit that abuts an end of the sheet being transported to form a bent portion at the sheet; a folding unit that nips the bent portion of the sheet by a pair of folding rollers to form a fold line in the sheet; a guide member that partially covers the folding roller and guides the sheet; and a position adjustment unit that adjusts a position of the guide member. An exposure amount of the folding roller with respect to the sheet can be varied by adjusting the position of the guide member through the position adjustment unit.

Abstract: A device for folding sheets of a medium into a booklet is provided. The device includes 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; a crease blade for contacting the sheets to create a crease in the sheets; and a controller that controls a position of the crease blade, a gap between the pair of first rolls, and a gap between the pair of second rolls.

Abstract: A paper folding station with a paper-feeder and a first pair of motorized rollers supported at a delivery end of the paper-feeder about respective parallel axes to draw sheets of paper from the feeder. One of the rollers is mounted on a first adjustable support. A folding buckle is provided to receive the sheets from the first pair of rollers through an inlet mouth. The buckle has a barrier causing the sheets to stop and bend into the shape of a groove below the inlet mouth. A second pair of rollers is supported near the inlet mouth about respective parallel axes to pinch the groove and to make a transverse fold on the sheet. The paper-folding station further comprises at least one transverse beam to guide the sheet near the inlet mouth.

Abstract: A sheet processing apparatus includes a pushing member, a drive device, a first conveyance unit, a second conveyance unit provided on a downstream side of the first conveyance unit, a first detection unit, a second detection unit, and a control unit. The drive device moves the pushing member to push a portion of a sheet bundle to fold the sheet bundle. The first conveyance unit uses a roller pair to convey the folded sheet bundle folded. The second conveyance unit conveys the sheet bundle. The first detection unit detects an amount by which the pushing member is moved by the drive device. The second detection unit detects an amount by which the sheet bundle is conveyed by the first conveyance unit. The control unit separates the roller pair based on the amounts detected by the first and second detection units.

Abstract: A folding table, in particular for a folding device which is provided with a chopper folding device, includes a folding face which is suitable for receiving a flat product to be folded, and a folding aperture which extends in a conveying direction, the table extending along a table plane. The folding face includes guides which are capable of guiding at least one conveyor for conveying a flat product to be folded in the conveying direction.

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 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: This invention relates to a sheet postprocessing apparatus for executing postprocessing including a punching process, folding process, binding process, and the like, midway along a sheet convey path, for sheets discharged from an image forming apparatus, and a folding method. This sheet postprocessing apparatus includes a sheet folding section having the first and second folding sections which are arranged in series in a sheet convey direction to execute folding processes for sheets. The sheet folding section is configured such that the first folding section performs the first folding process in a Z-fold process, the first folding process in an internal three-fold process, and a center folding process with an image-transferred surface facing outside, and the second folding section performs the second folding process in the Z-fold process, the second folding process in the internal three-fold process, and a center folding process with an image-transferred surface facing inside.

Abstract: A method and apparatus for the manufacture of a two-sided image product is disclosed, comprising the steps of: providing a web of media having an image bearing side and a non-image bearing side; printing a plurality of undetermined images on the image bearing side; applying an adhesive to the non image bearing side; moving the web of media in a direction longitudinal to the web; forming a crease line on the web of media, the crease line running in the longitudinal direction along the web; and folding the web of media along the crease line so that the non-image bearing side contacts itself so as to adhere the non-image bearing side to itself.

Abstract: Formerly, several machines or workstations have been required for bordering and closing creases, especially on pipes used in ventilation technology. The invention provides a machine that can carry out all of the operations without the workpiece having to be rechecked. By positioning the closing wheel (6), known per se, underneath the work surface, all of the operations, including the insertion of a sealing strip, can be carried out precisely and economically at the same workstation. According to a preferred method, a bead is first pressed in the workpiece (100) using a moulding roll (2) and a beading and feeding roll (1). During machining with these hydromechanically driven rolls (2, 1), the workpiece (100) is held in the correct working position. The closing process is carried out from the bottom and enables optimum adjustment of the angle of intervention on the closing wheel (6) and reduces wear.

Abstract: In a folding and guiding apparatus for use in a filling and packing machine, film F that is drawn out and guided from a film winding core and fed continuously is double-folded up along the longitudinal direction thereof, and pack-target material is filled and packed while the four sides of the double-folded film are sealed. A film guide member 12 for regulating and holding the outer surface portions of the folded portions of the double-folded film is provided between a film folding mechanism 4 and a longitudinal sealing mechanism 5 so as to be adjacent to the longitudinal sealing mechanism 5.

Abstract: A sheet finisher includes: a sheet stacking section on which sheets are stacked; a pair of folding rollers for pressing and conveying the sheets; a roller driving device for driving the pair of folding rollers; a protruding member which is protruded toward a nipping position of the pair of folding rollers to fold the sheets stacked on the sheet stacking section in two; and a protruding member driving device for driving the protruding member to protrude toward the nipping position. When the protruding member driving device drives the protruding member toward the nipping position, the roller driving device is suspended to drive the pair of folding rollers to be conveyed.

Abstract: The present invention is related to a device for continuous folding of flat material (14) such as signatures (14) being printed upon on a rotary printing press on one or both sides thereof. Said device according to the present invention includes a driven rotating body (3) such as a cylinder, arranged perpendicular to the conveying direction (37) of flat material (14), such as signatures. Said cylinder (3) rotates about its respective rotation axis (2), having surface sections (7, 8), respectively, assigned to its respective circumference, tapering towards each other upon revolution of the respective cylinder (3).

Abstract: A sheet material assembly comprising a stack of longitudinally folded sheet material webs including a first web and second web. The first web includes a first fold, a second fold overlying a portion of said first fold, and a third fold lying between the first and second folds. The second web includes a first fold underlying the first fold of the first web, a second fold overlying the second fold of the first web and a third fold underlying the third fold of the first web. A folding device for forming a web includes a first, second and third folding edge extending from a first junction and formed in a first plane, a fourth folding edge extending from the first junction out of the first plane, a fifth and sixth folding edge extending from a second junction formed in a second plane parallel to and above the first plane, and a seventh folding edge extending from the second junction out of the second plane. The fifth folding edge crosses over the third folding edge in a spaced apart relationship.

Abstract: Folding stations are provided successively in a single running direction of an apparatus for the single or z-like folding of lateral tongues of a sheet layer. The first station has an offset rising folding curve for tongue straightening, the second station has a rotating roll for z-shaped prefolding of a tongue, and the third station has juxtaposed folding curves for the finish folding of differently long tongues and the first pressing rolls for the smoothing of the fold breaks. Therefore, very different and complicated folds can be carefully made in a single pass through the apparatus.

Abstract: A carton end panel folding mechanism for forcing both the leading and trailing panels of a gable top carton inwardly prior to the sealing of same. The folding mechanism includes four equally spaced blades, wherein each blade is shaped along its leading and trailing edges so as to be engaged at its trailing edge by a leading panel, forcing the leading panel inwardly and the blade forward, causing the leading edge of the next blade to engage the trailing panel and urge same inwardly.

Abstract: An apparatus and method for introducing a pleat into an advancing folded-over film web is provided which utilizes air under low pressure to separate the opposing faces of the web prior to the pleat being made. By unblocking the faces of the folded-over web, the web may be readily advanced and pleated without hang ups, misalignment, or tearing of the web. The apparatus includes a pair of substantially aligned and spaced-apart receiving plates over which opposing faces of the film web pass, a generally circular wheel positioned between the receiving plates and extending into the space therebetween for forming a pleat in the folded-over film, and an air passage positioned between the receiving plates for directing a flow of air between the opposing faces of the film web to separate the opposing faces of the web prior to passing over the receiving plates.

Abstract: An apparatus and method for introducing a pleat into an advancing folded-over film web is provided which utilizes air under low pressure to separate the opposing faces of the web prior to the pleat being made. By unblocking the faces of the folded-over web, the web may be readily advanced and pleated without hang ups, misalignment, or tearing of the web. The apparatus includes a pair of substantially aligned and spaced-apart receiving plates over which opposing faces of the film web pass, a generally circular wheel positioned between the receiving plates and extending into the space therebetween for forming a pleat in the folded-over film, and an air passage positioned between the receiving plates for directing a flow of air between the opposing faces of the film web to separate the opposing faces of the web prior to passing over the receiving plates.

Abstract: An overbending device preferably for use with existing apparatus, such as a gumming apparatus, has ball bearings, fingers or other equivalent members for pressing down and a driven or freewheeling rolling disk for forcing up the adjacent sides of an envelope. The adjacent sides defined by a bend or a score line.

Abstract: The apparatus for the production of paper napkins or other similar products which includes a feeder for continuously supplying a web of material, a slitter for cutting the web into a plurality of longitudinal strips, a first folder to fold the strips lengthwise, a transverse cutter for providing lengths of longitudinally folded strips, a second folder to fold the strips transversely, and a stacker to pile up the finished napkins. A driving roller matches the two edges of the longitudinally folded strips and downstream of the driving roller are inclined surfaces to separate the longitudinally folded strips to lay them down on a common geometric plane parallel to each other.

Abstract: A quarter-folder operates at high speed by reducing the leading edge to leading edge distance between successive papers, and continuing to move the papers forward while urging the papers down between folding rolls. The folding rolls are obliquely disposed so that a tucking blade urges a portion of the paper between the rolls, and the angular disposition causes the paper to continue. A plurality of pairs of folding rolls receives a paper for complete folding. Retarding brush rollers will slow the folded paper to be received by a conventional creel.

Abstract: The invention relates to a drywall corner bead spreader device. The device comprises a stationary support portion and a movable pressure applying portion. When a length of drywall corner bead is placed on the stationary support portion with its flanges facing upwardly adjustment of the movable pressure applying portion into contact with the flanges will force the flanges to assume an included angle greater than its normal ninety degree orientation. The movable pressure applying portion includes a freely rotating spreader ball which will rotate as the corner bead is pulled from beneath the spreader ball resulting in reduced friction and providing a uniform included angle to the flanges in excess of ninety degrees.

Abstract: Disclosed is an automatic paper folding apparatus and method for folding cut sheet paper products, whether single sheets or multiple plies as in a "signature" that is already folded by a printing press. The apparatus of the invention contains at least one pair of opposed belts which continuously grip the products and carry then through the apparatus. At least one set of freely rotatable rollers is arrayed along the direction of travel. Each belt has a flat paper-gripping surface, a longitudinal groove on the opposite surface that receives a guide roller, and at least one side surface that slopes away from the folding line. Each roller has a conical forming surface. The angle of inclination of the conical surfaces of the rollers in a set increases incrementally along the direction of travel.

Abstract: In a packaging machine for use with a plurality of webs as a packaging material, each of the webs being formed with fold lines extending widthwise thereof and arranged longitudinally thereof at a spacing corresponding to the height of the finished containers to be eventually formed from the web, the plurality of webs being different in the spacing between the fold lines to form containers of capacities which are variable according to the height, a folding apparatus for forming folds in the web by folding the web along the fold lines, comprising a plurality of folding rollers corresponding to the plurality of webs, each of the folding rollers being movable to and retractable from an operative position in which the folding roller is rotatable by the corresponding web when the web is advanced as passed therearound, each of the folding rollers having edges extending axially thereof and coinciding with the fold lines of the corresponding web.

Abstract: An improved knife folder includes a blade adapted to collapse a sheet a predetermined amount in order to allow nip rollers to buckle the sheet into a pair of folding cylinders. In this manner, potential for blade damage to the sheet and a critical set up are eliminated while at the same time insuring positive paper acquisition.

Abstract: An apparatus and method for erecting a carton having laminated corner structures. A multi-sectioned corner flap is folded progressively between an outer guide in the form of a longitudinal row of rollers and a spiraling row of conical rollers that accurately pinches a bent corner edge of the corner flap structure against the end panel to which it is joined in the carton blank. Surface-to-surface contact between the glued portions of the corner flap and the end panel is prevented until the folding action has been accurately completed.

Abstract: Disclosed is an automatic paper folding apparatus and method for folding cut sheet paper products, whether single sheets or multiple piles as in a "signature" that is already folded by a printing press. The apparatus of the invention contains at least one pair of opposed belts which continuously grip the products and carry them through the apparatus. At least one set of freely rotatable rollers is arrayed along the direction of travel. Each belt has a flat paper-gripping surface, a longitudinal groove on the opposite surface that receives a guide roller, and at least one side surface that slopes away from the folding line. Each roller has a conical forming surface. The angle of inclination of the conical surfaces of the rollers in a set increases incrementally along the direction of travel. As the belts carry the sheets through the apparatus, they each engage the conical surface to fold the sheet against a belt with no substantial degree of relative movement between the sheets and either the belts or rollers.

Abstract: An edge blending masking tape dispenser has an upright support plate and a base with a tear off edge above the base. A roll of adhesive coated masking tape is journaled and yieldably retained upon the support plate and passes over a tape edge folding and forming die which has a cam surface so as to constrict and upwardly deflect and form the leading one edge portion of the tape. The tape further passes over and around the tape support in tension with the upwardly deflected one edge of the tape folded down upon the adhesive side thereof. This provides a non-stick free floating edge along the tape to permit feathering and blending of new paint with an existing tape finish, when the masking tape is adhered thereto.

Abstract: A tuck assembly for automatically inverting the gussets of a pocket file folder as the file folder is moved through a cutting and folding line, the assembly includes a tuck section having a plurality of a V-type tuck rolls of decreasing depth for opening the folded gusset, a guide section for supporting the edges of the file folder pocket and a compression section for folding the open gusset into the edge of the pocket.

Abstract: An apparatus and method for forming one or more pleats in a continuously advancing sheet of indeterminate length are provided. The apparatus includes a first roll, over which the sheet passes while a streak of adhesive is laid upon a selected strip of the sheet, and a composite roll, to which the sheet passes as a reach under selectively varied tension. The composite roll includes a parallel roll and an inclined roll which is inclined at a pleat angle to the parallel roll and is driven by rolling contact with the parallel roll while passing through a pinch zone at the apex of the pleat angle which is 0.25.degree. to 5.degree., preferably about 1.5.degree.. The periphery of the inclined roll may vary from a right circular cylinder to a right circular cone with its peripheral surface at a bevel angle to the circular side thereof. The bevel angle is preferably one half of the pleat angle.

Abstract: A belt folding apparatus wherein a first conveyor orientates belt material along one edge for folding over the belt material that is in excess of the desired amount by a pair of vertically asigned discs in cooperation with inclined rollers that complete the turn over or folding operation. A pair of pressing rollers in cooperation with a second conveyor complete the folding process, afterwhich the folded belt is wound up.

Abstract: A manually fed folding machine comprising a horizontally reciprocal fold plate for making a first fold in an article, a pivotally movable fold bar clamps the leading edge of the article while the first fold is made and then unclamps the leading edge and carries it about a second predetermined fold line and into superposed relation with the first fold line. A vertically reciprocable fold knife is pivotally connected to spring-clip clamps and the vertically reciprocable fold knife is elevated to move the clamps into clamping position against the article during the second fold and the fold knife is then lowered against the article to impart a third fold while simultaneously lifting the clamps from the article.

Abstract: An overlay is applied to a substrate, for example in the manufacture of book covers, by serially wrapping the overlay around a first pair of oppositely disposed edges of the substrate, folding the corners of the overlay into the substrate and wrapping the overlay around the two remaining edges of the substrate. The first wrapping of the overlay around a pair of edges of the substrate is accomplished by feeding the substrate with the overlay adhered thereto through a wrapping station alternately in opposite directions and deflecting the overhanging portion of the substrate at the leading edge out of the path of motion so that these overhanging portions may be engaged by a wrapping tool.