Abstract: A method of and apparatus for producing bag packages with edge seals, in which a sheathing tube is formed from a packaging material sheeting. Before the sheathing tube is formed, sealing seams are formed in the packaging material sheeting.

Abstract: A folding system is provided for folding at least one wing extending from a central chassis of each of a plurality of absorbent articles formed from a continuous moving web moving in a longitudinal direction. The folding system has a wing-folding conveyor and at least one elongated, folding plow, which has an entrance end, an exit end and an inner edge that define a twist axis. The folding plow has a contoured surface having a configuration defined by a twist angle that increases along the twist axis from zero degrees near the entrance end to 180 degrees near the exit end. The wing-folding conveyor moves the central chassis along the inner edge of the folding plow and the wing slides against the contoured surface from the entrance end to the exit end, such that the wing folds around the central chassis near the inner edge.

Abstract: A device is provided which is usable to draw at least one web of material or at least one web strand, that includes several webs of material, into a folding apparatus. The folding apparatus includes at least an upper structure, at least one folding funnel and a cross cutting device for separating the web of material, which has been transported in the upper structure and folded on the folding funnel, into individual products. At least one guide rail is provided. A holding part with a guiding end of at least one web of material fixed thereto, is displaceably guided on a path of web travel of the web through the upper structure. At least one guide rail is provided along the folding funnel.

Abstract: A plastic sheet with a bending rule line, having satisfactory bending properties and pliability, feeling soft, having a fine appearance, and allowing a bending operation to be mechanically performed; and a ruled line blade for such plastic sheet. A bending ruled line (2) added to the bending portion of a plastic sheet (1) is formed, and shallow grooves (3) are formed along the bottom surface (2b) of the bending ruled line 2 and at predetermined longitudinal intervals, while a plurality of grooves (4) deeper than the shallow grooves (3) are formed longitudinally along the bottom surface (2b) between shallow grooves (3,3).

Abstract: A sheet folding apparatus is described including a fold blade, a clamp movable to engage the fold blade, and a fold blade receptacle having two flexible spring members. The flexible spring members are biased toward one another by preloading material of the spring members. The fold blade and fold blade receptacle are movable toward one another to fold a sheet of material.

Abstract: A sheet folding apparatus is described including a fold blade, a clamp movable to engage the fold blade, and a fold blade receptacle having two flexible spring members. The flexible spring members are biased toward one another by preloading material of the spring members. The fold blade and fold blade receptacle are movable toward one another to fold a sheet of material.

Abstract: A longitudinal folding device for paper webs includes at least two hopper flanks. A paper deflection device encompasses the hopper flanks in a shell-like manner. The paper deflection device is supported by a machine frame and is electrically insulated from the machine frame. The paper deflection device may be connected to one or more vibrators or beaters.

Abstract: Folding apparatus and systems are described for providing multi-folded products utilizing a folding board having at least one pressurized nip positioned proximate the folding operation. A folded product is directed through a first pressurized nip, comprising a roller and a first surface of a second folding board, positioned upstream of the folding operation and a second pressurized nip, comprising a roller and a second surface of the folding board, positioned downstream of the folding operation. Positioning pressurized nips proximate the folding operation improves the integrity of the folds created within the product and also creates distinct, uniformly oriented fold lines.

Abstract: Methods and apparatus for folding pliable sheet material wherein the sheet material is wound on a mandrel to form a roll which subsequently is stripped off the mandrel and transferred to a pleating station at which successive creases are formed in the roll to produce a pleated packet. During the winding of the sheet material the latter is adhered to the mandrel by the application of negative air pressure to the material via the mandrel. Following the formation of the roll, the application of negative air pressure is discontinued and positive air pressure is applied to the interior of the roll so as to facilitate stripping of the roll from the mandrel. At the pleating station the roll is creased successively to form a plurality of pleats and the direction in which the creasing proceeds is such as to facilitate the escape of air from the roll as it is pleated.

Abstract: A folder includes a first cutting device for partially cutting a web of material, a former to fold the web of material, so as to form a folded web, a stationary signature opening device located between sides of the passing folded web, and a second cutting device located downstream from the former to cut the folded web into an at least one signature. A related collating device is also provided.

Abstract: A device is provided for folding a material web traveling in a machine direction. The device has a folding portion having a leading edge, a breaking wing attached to the folding portion, the breaking wing having a breaking edge, and a roller rotatably attached to the breaking wing and having a surface and a rotational axis. The rotational axis is along a transverse direction, the transverse direction being substantially perpendicular to the machine direction. The roller is for supporting a roller portion of the material web as the material web is fed to the folding portion, and the breaking wing is for supporting a wing portion of the material web as the material web is fed to the folding portion. The surface of the roller is positioned in the transverse direction at a first angle relative to the rotational axis, the breaking edge of the breaking wing is positioned in the transverse direction at a second angle relative to the rotational axis, and the first angle is different from the second angle.

Abstract: The present invention provides a sheet with a folding portion that has a sheet body such as a plastic sheet, on which a folding portion (12) is formed perpendicular with respect to the folding direction (X). The folding portion (12) of the sheet includes a large number of recesses (14) and remnants (16) defined between the recesses (14) formed on the sheet body (10). Boundary lines (18) between the recesses (14) and the remnants (16) each are tilted at acute angle with respect to the folding portion-forming direction (Y) and towards the same side as that of an opposite one of the boundary lines (18) with a corresponding remnant (16) therebetween. The present invention also provides a shaping blade for shaping the folding portion on the sheet.

Abstract: A method for producing a batch of products having a multiplicity of interfolded, generally rectangular sheets including wet wipes, from a limited amount of a web material, at a high production speed and in efficiently used floor space.

Abstract: A method of imparting directional permanency of folding to a sheet, and an apparatus therefor, which is suitable for manufacturing frame bodies, cushioning members and other block products for packaging, from a sheet of paper and other recyclable materials. The method includes a step of moving respective folding working tools, disposed on one or both surfaces of a sheet, required amounts so as to fold the sheet along respective folding ruled lines, and a step of shortening spacings between the respective folding working tools in a uniform ratio in accordance with an apparent amount of shortening in a longitudinal dimension caused by the shifting, while synchronizing with the moving step. Directional permanency of folding can be accurately imparted to the sheet along the folding ruled lines.

Abstract: The cardboard blanks for conversion into hinged-lid packets for arrays of cigarettes are dimensioned and configurated in such a way that an elongated reinforcing strip at the inner side of the front panel of the lid is longer than the front panel. Those terminal sections of the reinforcing strip which extend beyond the ends of the front panel in a blank are bent prior to or during the folding of the reinforcing strip against the inner side of the front panel so that they do not adversely affect the configuration of the lateral panels of the lid and the appearance of a finished packet because the lateral panels are not caused to bulge outwardly.

Abstract: A method and a device for the production of folded products utilizes a row of folding jaws and a row of counter folding jaws. A signature to be cross-folded is inserted between the jaws by a folding blade. The folding jaws and counter folding jaws form a line of embossing on the folded signatures adjacent the transverse fold line. The resultant folded item has an increased moment of resistance in the direction of transport.

Abstract: A folding-shift mechanism for a bag knitting apparatus which folds inward the text-printed side portion of the knitted bag automatically to enhance the structural strength on both side portions and which overcomes the problem met in previous bag knitting apparatus in which the text-printed side portions can not be folded automatically. Therefore, the folding-shift mechanism for a bag knitting apparatus enhances the structural strength and production efficiency of the knitted bag. The folding-shift mechanism is arranged between a set of upper/lower rollers and comprises a pulley stage and a rotating-and-expanding frame. A front side of the pulley stage is provided with an expanding pulley. The rotating-and-expanding frame is provided with supporting rods which extend slantingly backward in right and left directions and a folding pulley arranged on the end of each supporting rod.

Abstract: A tubular blank of filter paper containing measured and separate quantities of tea, or a similar infusionable substance, is pleated and folded so as to obtain a bag with two envelopes by a method that includes the steps of advancing blanks singly and in succession along a feed direction tangential to an indexing wheel with radial grippers, taking up each blank in a position above three bearing elements ordered along the feed direction, forming a pleat in an intermediate portion of the blank, then pinching the two ends of the blank by use of movable pressure elements interacting with two of the bearing elements so as to prevent the escape of the contents from the envelopes while at the same time drawing the tubular blank toward the wheel to bring the two envelopes together and give the filter bag its final shape.

Abstract: An arrangement is provided for the automatic folding of toy balloons. A series of folding plates are provided along a path of travel and a vacuum conveyor provides traction force for the balloon as it slides across the folding plates. The folding plates interfere with the path of travel of the balloon causing the balloon to fold side-to-side. Tucking blades fold the balloon lengthwise to complete the folding operation.

Abstract: An apparatus for clamping, folding and transferring a stack of flexible plastic bag products such as a stack of zippered plastic bags. The apparatus can be retrofitted in existing bag sealers used for producing and packaging a stack of plastic bags in order to produce novel shallower plastic bag products.

Abstract: An apparatus for forming thin plastic, film, aluminum, paper, glassine and other similar material into a double folded "z" shape as shown and described. In this apparatus, a first ramp folds the material initially in one direction, and a continuously variable die forms the second bend of a "z" shape of the material edge. In order to maintain accuracy, an initial crease is placed at the location of the first fold. The material is drawn through the die by any suitable roller or drawing means which can pull the material through the die. There are no rollers within the edge forming die.

Abstract: A bag-making apparatus which comprises a support table carrying a bag material which is put thereon, a pair of side guides being provided above the support table, being movable in the direction perpendicular to the traveling direction of the bag material and controlling both side of the bag material, a pair of top guides being movable in the direction perpendicular to the traveling direction of the bag material together with the side guides, having the space therebetween gradually narrower from the approach side to the leaving side of the bag material, and controlling the front face of the bag material made tubular, and forming rollers being disposed on the approach side of the bag material from the top guides, being movable in the direction perpendicular to the traveling direction of the bag material, and pressing the bag material onto the support table.

Abstract: An improved folder includes a first series of belts which grips and moves sheet material along converging deflectors to fold the sheet material. As the space between the deflectors narrows, a second series of belts grips the sheet material and continues its movement between the deflectors. The first series of belts includes a first plurality of tapes disposed on a first side of a fold line and a second plurality of tapes disposed on a second side of the fold line. The second series of belts includes a pair of creaser belts which extend from between the tapes to an outlet portion of the folder. The speed of movement of the tapes and creaser belts is coordinated by using speed signal generators which are driven at the speed of movement of the tapes and creaser belts. A controller compares the speed signals and maintains a desired relationship between the speed of movement of the tapes and creaser belts. It is believed that the creaser belts will usually be driven at the same speed.

Abstract: Thermoplastic film is fed from a roll and pleated by passing the film across a series of rigid guides. As the film is drawn down across the guides, the film is pleated and then gathered onto a wind up roll. A J-shaped roll rack is preferably pneumatically activated to bring a fresh roll of film into a position for feeding the pleating arrangement.

Abstract: Thermoplastic film is fed from a roll and pleated by passing the film across a series of rigid guides. As the film is drawn down across the guides, the film is pleated and then gathered onto a wind up roll. A J-shaped roll rack is preferably pneumatically activated to bring a fresh roll of film into a position for feeding the pleating arrangement.

Abstract: An apparatus (24) for the simultaneous production of all the sheet layers, including pocket dividers, for blocks, as well as for the complete production of said blocks has a manufacturing or production means (25) for the pocket dividers folded along a fold line and glued along a line at angles thereto, in which the pocket dividers are simultaneously cohesively produced in multi-unit size form over the working width in the same way as the remaining sheet layers of the block, then the remaining multi-unit size partial layers of the block are supplied and finally are cut commonly into the individual units. This leads to a fully automatic production of blocks comprising pocket dividers without any intermediate storage of the pocket dividers and as each of the pocket dividers can be produced with only one single back layer, a considerable material saving is achieved.

Abstract: In an in-line converting machine, flat carton blanks are thrust into a rotary former. The former includes a mandrel over which the carton is partially formed as the former rotates through 180.degree.. Thereafter, the carton is thrust off the former by a kicker bar and into a hopper where the carton nests with previously-formed cartons. The nesting cams the glued carton panels together, thereby completing the formation of the carton.

Abstract: Apparatus for folding paper sacks to a Z shape about transverse fold lines comprises scoring wheels for defining the fold lines, folding blades and folding means consisting of folding bars for turning the sacks about the folding blades. A first double belt conveyor clampingly engages each sack near its base or filling aperture and conveys it continuously through the folding means. Two parallel shafts mounted in the machine frame in a vertical plane transverse to the conveying direction each carry two spaced co-operating scoring wheels which provide the passing sacks with scoring in opposite senses. A second double belt conveyor provided parallel to the first engages the sacks at the opposite end, has a length equal to the scoring and holds each sack while passing through the scoring wheels. A third double belt conveyor adjoining the second and parallel to the first clamps each sack between the first double belt conveyor and the scoring facing same during folding about this scoring.

Abstract: A booklet containing an integral pop-up is formed from a continuous web of paper in an in-line process on a single apparatus.

Abstract: The invention concerns expanding files. A flat strip of flexible material (12) is progressively folded longitudinally to form a U-shaped channel. A length of the material equivalent to the developed width of a gusset is drawn forward. A precut partition with glued tabs (113) is placed at the rear of the drawn forward section of material. A fold is formed by pushing the three edges of the channel inwardly. This sequence of operations is repeated to form a multiplicity of pockets, comprising a plurality of parallel partitions joined along three edges to constitute respective filing pockets by the flexible material which is concertina-folded to constitute respective gussets. This multiplicity of pockets may be sectioned to provide separate expanding files. The invention comprises the manufacturing method and the machine for implementing same.

Abstract: A method for the production of corrugated paper comprising the steps of feeding a continuous sheet of paper over a first arcuate roller, making several folds in the paper along lines of radius of the first arcuate roller, passing the paper over a second arcuate roller which has the same center of curvature as the first arcuate roller, and unfolding the paper folds to yield the corrugated paper. The paper preferably turns about 90.degree. in passing over the first and second arcuate rollers, and after being unfolded there is provided additional corrugations by use of crimping rollers or the like.

Abstract: A method and apparatus for folding a piece of welt material along longitudinal and transverse fold lines. The method and apparatus produce a folded piece of welt material with sharply defined transverse and longitudinal folds in a safe and efficient manner. A preferred embodiment of the garment welt folder (26) utilizes a template (30) having a recessed area (34) and a slot (38) with sharply defined longitudinal and transverse edges corresponding to longitudinal and transverse folds to be made in the welt material (64). Finger blades (50, 52) are positioned to secure the welt material (64) at the longitudinal fold lines by a vertical double-acting fluid cylinder (44) and two horizontal double-acting fluid cylinders (46, 48). Two portions (68, 70) of the welt material (64) extending beyond the longitudinal fold line are folded over the portion (66) of the area of the welt material (64) within the longitudinal fold lines by two folding blades (58, 60).

Abstract: Film running one direction is folded along a longitudinal folding line by a folding plate and folding blade. The folding plate has a front edge and an inclined edge extending in the lateral direction against the film feeding direction, the folding blade extending in an oblique direction against the film feeding direction from the apex point of said edges of the folding plate for folding the outer part of a film against the reverse side of the film. The edges of the folding plate receives the tensile force of the film along the whole width so as to avoid any concentration of tensile force.

Abstract: Sheet folding means comprising a triangular frame structure having an apex over which a web of sheet material is passed for forming one or more folds therein, with a single fold forming a multi-ply web from a single web, and with multiple folds forming gussets within the web. In the device, continuous linear surfaces are provided for both defining the fold, and ultimately preserving the fold in the film moving across the folder structure. The folder includes a pair of mutually convergent arm members which converge toward an apex point adjacent to tip ends of the convergent arm members. First and second tip plates are provided for mounting upon the first and second converging arms respectively, with the tip plates each being polygons with linear edges, and being dimensioned so as to span the space between the converging arm means to form a selected apex point with the apex point being projected outwardly from the tip ends of the convergent arm members.