Abstract: A machine a mandrel assembly includes a mandrel having an external shape complimentary to an internal shape of at least a portion of a container, a first lift mechanism operatively coupled to a first servomechanism to wrap a first portion of a blank about the mandrel, a second lift mechanism operatively coupled to a second servomechanism to wrap a second portion of the blank about the mandrel, and a folding arm coupled to the first lift mechanism and operatively coupled to a third servomechanism. A control system is in communication with the first servomechanism, the second servomechanism, and the third servomechanism and is configured to transmit a signal to each of the servomechanisms to independently control movement of the first lift mechanism, the second lift mechanism, and the folding arm to wrap at least the first and second portions of the blank about the mandrel to form the container.

Abstract: A machine for forming a container from a blank assembly including a tray blank and lid blank includes a frame, a mandrel assembly mounted to the frame, a pre-folding assembly, and a glue panel presser assembly. The mandrel assembly includes a first mandrel and a second mandrel positioned downstream from the first mandrel. The first mandrel has an external shape complimentary to an internal shape of at least a first portion of the container, and the second mandrel has an external shape complimentary to an internal shape of at least a second portion of the container. The pre-folding assembly is configured to fold a first portion of the blank assembly around the first mandrel to form a partially formed container. The glue panel presser assembly includes a first presser plate configured to form a first manufacturer joint, and a second presser plate configured to form a second manufacturer joint.

Abstract: A method of forming a container from a blank of sheet material using a machine is provided. The blank includes a bottom panel, two side panels, two end panels, and a reinforcing panel assembly extending from a first side panel. The machine includes a hopper station, a corner post forming station, and a plunger station. The method includes rotating the reinforcing panel assembly upwardly toward the first side panel as the blank is transported from the hopper station to the corner post forming station, forming a corner wall and a reinforcing end tab by folding reinforcing panels about fold lines as the blank is transported through the corner post forming station, rotating the side panels and the end panels to be substantially perpendicular to the bottom panel by directing the blank through the plunger station, and coupling the reinforcing end tab to an end panel to form the container.

Abstract: A method of forming a container from a blank of sheet material using a machine is provided. The blank includes a bottom panel, two side panels, two end panels, and a reinforcing panel assembly extending from a first side panel. The machine includes a hopper station, a corner post forming station, and a plunger station. The method includes rotating the reinforcing panel assembly upwardly toward the first side panel as the blank is transported from the hopper station to the corner post forming station, forming a corner wall and a reinforcing end tab by folding reinforcing panels about fold lines as the blank is transported through the corner post forming station, rotating the side panels and the end panels to be substantially perpendicular to the bottom panel by directing the blank through the plunger station, and coupling the reinforcing end tab to an end panel to form the container.

Abstract: A blank (2) comprising a row of body panels (P1-P4), and a row of end closure panels (P6-P9) extending substantially parallelly to the row of body panels (P1-P4), whereof each end closure panel (P6-P9) has an edge (E1-E4), and whereof each of the second (P7) and fourth (P9) end closure panels has oblique lines of weakness (S1, S11, S2, S12) which divide its panel into a central sub-panel (P7a, P9a) adjacent the corresponding second or fourth body panel (P2, P4) and two end sub-panels (P7b, P7c, P9b, P9c) adjacent the corresponding edges (E2, E4), wherein the end sub-panels (P7b, P7c, P9b, P9c) bulge away from its corresponding edge (E2, E4). A container formed from the sheet material blank and a method of forming the container is also described.

Abstract: In a machine for making rigid hinge-lid packets, the lid of each packet is folded by a device (9) equipped with a plurality of pockets (2) occupied by respective single packets (P), each presenting a set of end folds (20) that will be bent inwards to form the lid (15), also, a belt conveyor (3) by which the pockets (2) are directed along a predetermined folding path (3b) between an infeed point (10) and an outfeed point (11), a pulley (4) centred on a vertical axis (X) of rotation, and a folder unit (12) mounted to the rotating pulley (4), interacting with a top part (13) of each pocket (2) in such a manner as to engage and bend the end folds (20) of the packet (P). The folding path (3b) coincides with a branch of the belt conveyor (3) looped around the pulley (4).

Abstract: Containers (2) for food products are manufactured employing a system that includes a feed station (4) supplying a succession of tubular elements (2a), and a heat sealer (10) positioned to close and secure a first open end (2b) of each tubular element (2a) that coincides with the base of the container. The sealing operation occurs at a station associated with a conveyor (3) consisting in a wheel (11) rotatable in a feed direction (B) along a path (P) passing both through the feed station (4) and through the station occupied by the heat sealer (10). The tubular elements (2a) are carried by radial elements (13) of the wheel (11) such as can be indexed between a first operating position, where the tubular elements (2a) are taken up from the feed station (4), and a second operating position in which the open end (2b) is offered to the heat sealer (10).

Abstract: The present invention relates to an apparatus for manufacturing packages, comprising a fist plurality of arms (2) which are at substantially equal mutual spacing, on symmetric distribution about a circle, radially extend about a geometric axis (X) and located in a common plane at right angles to the axis, as well as a second plurality of treatment stations (4) which are disposed a radial distance from the axis (X), as well as rotary means which are disposed to rotate the arms intermittently about the axis (X) between the treatment stations (4), the arms (2) and the treatment stations (4) being disposed in relation to one another such that the position of the arms (2) and the position of the treatment stations (4) coincide after the intermittent rotations. In a single indexing state, the apparatus (1) is configured to be disposed to rotate the arms to one distribution at a time, and in a double indexing state, to be disposed to rotate the arms (2) two distributions at a time.

Abstract: An automatic packaging machine for forming a latching flip-top box from a blank. A plurality of mandrels are coupled to a conveyor system. Each of the mandrels includes a mounting block for coupling the mandrel to the automatic packaging machine, a package-holding assembly operatively connected to the mounting block and being rotatable about a first axis from a first position to a second position, and a flap holder assembly operatively connected to the mounting block. The flap holder assembly is rotatable about a second axis substantially perpendicular to the first axis. A plurality of plows and tucker assemblies sequentially manipulate portions of the blank in order to form portions of the box.

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: An automatic packaging machine for forming a latching flip-top box from a blank. A plurality of mandrels are coupled to a conveyor system. Each of the mandrels include a mounting block for coupling the mandrel to the automatic packaging machine, a package-holding assembly operatively connected to the mounting block and being rotatable about a first axis from a first position to a second position, and a flap holder assembly operatively connected to the mounting block. The flap holder assembly is rotatable about a second axis substantially perpendicular to the first axis. A plurality of plows and tucker assemblies sequentially manipulate portions of the blank in order to form portions of the box.

Abstract: A carton closure method wherein heated end side walls of the open end of a carton are initially infolded to partially close the open end of the carton and thereafter subjected to capture between a backup pad and a pressure pad by a linearly reciprocative cam to which pressure is applied by a cam follower driven in a direction substantially perpendicular to the direction of linear movement of the cam relative to the backup pad, whereby the cam is moved between positions wherein there is applied pressure against the partially infolded portions of the end side walls of a carton blank to effect a sealing pressure against such infolded portions and a position wherein no material pressure is applied to the partially infolded end side walls of the carton blank, the cam movement being facilitated by a multi-faceted geometry of the camming face of the cam.

Abstract: A carton closure system including a cam having a rear face and a camming surface opposite the rear face, the cam being mounted for linear reciprocation between a position wherein there is applied pressure against partially infolded portions of the end side walls of a carton blank to effect a sealing pressure against such infolded portions and a position wherein no material pressure is applied to the partially infolded end side walls of the carton blank, the movement between such pressure and non-pressure applied positions being facilitated by means of a multi-faceted geometry of the camming face of the cam.

Abstract: A packaging machine for loading of individual articles into a product cartons that includes a rotary blank feeder and a rotary board erector. The rotary blank feeder includes a plurality of feeder arms each having a vacuum head. The feeder arms are each rotatable about a common axis of rotation and the entire folding arm assembly is rotatable about an offset secondary axis of rotation. Each vacuum head of the rotary blank feeder moves into contact with the lowermost planar carton blank contained with an overhead hopper and transfers the carton blank to a board feed conveyor. From the board feed conveyor, each carton blank enters into a rotary board erector having a plurality of folding arms rotatable at variable speeds about a common axis of rotation. The folding arms of the rotary board erector partially fold each planar carton blank for loading with individual articles.

Abstract: In the method for feeding blanks in the container-forming unit, the blank is advanced onto the wrapping mandrel which is attached to a moving structure, which moves the wrapping mandrel between the different processing stations of the container-forming unit. Blanks are advanced as a continuous blank web to the wrapping mandrel of the wrapping station, where they are detached from the end of the blank web and advanced onto the wrapping mandrel. The blank web is fed by means of a conveyor situated before the detachment point in the feeding direction by steps corresponding to the length of a blank, and after each feeding movement a blank is detached from the end of the blank web.

Abstract: The apparatus for forming a container is situated in a container-forming unit comprising different processing stations. The apparatus for forming a container includes a wrapping mandrel attached to a moving structure, which is arranged to move the wrapping mandrel between different processing stations, and the members for feeding the blank to the wrapping mandrel. The apparatus for forming the container also has members to wrap the blank around the wrapping mandrel in order to form a structure that is closed in the horizontal cross-section perpendicular to the longitudinal axis. The wrapping mandrel is equipped with suction openings distributed on its perimeter, which openings are connected to the air duct in order to wrap the blank around the wrapping mandrel with the aid of suction.

Abstract: A method and apparatus for forming the bottom of a carton on a form, fill and seal packaging machine such as the TETRA REX® packaging machine includes a sealing station for a bottom forming station that includes a pair of rotating spindles. Each spindle has a pre-folding member and a final folding member for infolding the bottom panels of the carton. The sealing station also includes a guide plate for guiding the final folded bottom panels of the carton to a sealing plate for permanent sealing. The bottom formed carton provides a tight seal, particularly for an over-folded carton, for use in packaging a product.

Abstract: A method and apparatus for forming a bottom closure of a container employing multiple assembly lines and including a universally foldable seal fin as a part of the bottom closure. A novel blank for the container is disclosed.

Abstract: An automatic packaging machine for forming and filling a latching flip-top box uses a two part mandrel which are joined by a hinge. One of the two hinged parts has a roller thereon for following a cam track having a quarter turn spiral therein. As the roller follows the spiral causing one hinged part to move through a quarter turn causing the flip-top to fold over and be formed. A somewhat loose tab on the top edge of the bottom of the box is a latch tab which is caught when the flip-top folds over.

Abstract: An automatic packaging machine for forming and filling a latching flip-top box uses a two part mandrel which are joined by a hinge. One of the two hinged parts has a roller thereon for following a cam track having a quarter turn spiral therein. As the roller follows the spiral causing one hinged part to move through a quarter turn causing the flip-top to fold over and be formed. A somewhat loose tab on the top edge of the bottom of the box is a latch tab which is caught when the flip-top folds over.

Abstract: A heating device for heat-sealing bottom portions of containers has a hot air nozzle 62. The nozzle 62 is positionable as opposed to a bottom forming end portion 14 of a tubular blank 11 of square cross section as fitted around an intermittently drivable mandrel 52 for heating a region of the blank end portion. The nozzle 62 is movable toward or away from the end portion 14 on the axis of the blank 11. The nozzle 62 has orifices 101, 102, 131, 132, 133 directed toward a plurality of parts within the region when the nozzle is positioned close to the end portion. Among the orifices 101, 102, 131, 132, 133 of the nozzle 62, those 101, 131 directed toward the part of the region remote from an extremity of the blank when the nozzle is so positioned have a greater open area ratio than those 102, 133 directed toward the part of the region proximate to the blank extremity when the nozzle is so positioned.

Abstract: A bottom forming apparatus having a mandrel cap and a sealing plate configured to create a carton with an elevated bottom. The present invention alleviates the problem of cartons having soggy bottoms since the point of absorption, the raw paperboard edge, is elevated above the moisture which may be present during distribution from the packaging machine to the retailer. The elevated bottom portion is actually inverted into the carton with planar portions resting on the surface to support the carton. The sealing plate has a multitude of elevated portions and the mandrel cap has a recess and an angled edge for elevating the raw paperboard edge. The various embodiments of the sealing plate are able to elevate most carton bottom configurations including the standard TETRA REX.RTM. carton and the TETRA REX.RTM. sixth panel with skived edge carton.

Abstract: A packaging machine for producing hinge-lid boxes for cigarettes has a rotating folding turret which has a plurality of pockets (21) which are open in the radial direction. For the purpose of securing blanks (11) or partially completed hinge-lid boxes (10) in the pockets (21) of the folding turret, protrusions (32) are arranged in the pockets (21) and have a supporting surface (34) for abutting a closure edge (18) of an inner side tab (14) of the blank (11). For the purpose of discharging a hinge-lid box (10) from the pocket (21), the retaining force which is exerted by the protrusion (32) is overcome.

Abstract: A packing machine presenting a wrapping conveyor for continuously feeding a succession of wrapping spindles along a given path; a feed device for continuously feeding a succession of sheets of wrapping material in a direction tangent to the path, along the path and in time with the spindles; and a pickup device associated with each spindle, and for gripping a front portion of a relative sheet and inserting the front portion between two successive spindles so as to fold an intermediate portion of the sheet about the rear spindle; a retaining member, associated with each spindle, cooperating with the intermediate portion of the relative sheet to retain it on the relative rear spindle and on the wrapping conveyor.

Abstract: A pressure sealing mechanism having a yoke into which a mandrel is positioned while having a carton tube mounted thereon with overlapped end closure panels, the yoke including side walls, a closed outer end wall, oppositely disposed, inwardly extending flanges formed on the inner ends of the side walls, with cooperating slots formed in the mandrel, and an expansible bladder and a pressure pad mounted in the yoke for sealing the panels upon expansion of the bladder by forcing the yoke radially outwardly such that the flanges engage the slots providing a compressive force on the panels.

Abstract: An apparatus and method for folding the bottom panels of a carton blank that includes side walls, first and third bottom panels extending from opposite side walls, second and fourth bottom panels extending from opposite side walls, and a bottom panel flap extending from the third bottom panel. The apparatus includes a frame, a rotatable supporting assembly, two rotatable folding fingers mounted on the frame for inwardly folding the second and fourth bottom panels, a tuck folder mounted on the rotatable mounting assembly for inwardly folding the third bottom panel, a guide mounted on the frame for contacting and inwardly folding the first bottom panel, and a bending member mounted on the rotatable supporting assembly for outwardly folding the bottom panel flap. One portion of the bending member is curved to define a concave surface that faces the tuck folder. The bending member can also be provided with a convex surface positioned on each side of the concave surface.

Abstract: An apparatus for producing containers made of paper-base laminate, the apparatus comprising: an intermittently drivable rotor 42 having radial mandrels 43 each adapted to support a tubular container blank of square to rectangular cross section as fitted therearound, the mandrels 43 being so arranged as to successively stop at each of processing stations I to VI including a pressure bonding station V, and a bottom bonding unit 48 disposed at the pressure bonding station V, each of the mandrels 43 having in a forward end face 54 thereof a groove 55 for forming the recess 36, the bottom bonding unit 48 comprising a bonding member 52 having a pressing face 56, the pressing face 56 being opposed to the forward end face 54 of the mandrel 43 as stopped at the pressure bonding station V, the pressing face 56 being provided with a ridge 57 corresponding to the groove 55.

Abstract: A blank feeder has a pair of guide rails for guiding blanks having a tubular form of square cross section to a bottom forming mandrel. The guide rails are formed with opposed recessed portions which are V-shaped in cross section for holding therebetween two corners of the blank on a diagonal thereof, and have shock absorbing means for mitigating the impact to be involved in the stiking contact of the blank with the guide rails.

Abstract: The invention describes an apparatus for producing a fluids package, with a synthetic plastics coated paper tube, of which one end is closed by an injected synthetic plastics lid while its other end is closed by holding and welding the tube material, with a device (8) for forming a tube from a web (2), at least one intermittently rotatable mandrel wheel (27), an injection station (29), an endless conveyor (31) for the packages (34) during the course of their production, a filling station (63), a closing station (62) and with a removal conveyor (39).

Abstract: An apparatus for use with blanks folded to a flat form for unfolding each blank into a tube of rectangular to square cross section and feeding the tubular blank to one of container bottom forming mandrels which is at rest at a feed station. The apparatus comprises a magazine for accommodating a multiplicity of such blanks as arranged side by side, transport arms for delivering the blanks one by one from a delivery opening of the magazine and transporting each blank to a position on an extension of the axis of the mandrel, an unfolding arm for unfolding the blank from the flat form to the tubular form during transport by forming a fold in the opposed flat portions of the blank, a holder for holding the tubular blank on the extension of axis in alignment therewith movably along the extension, and a transfer assembly for transferring the blank from the holder to the mandrel. The forward end of the unfolding arm is movable into and out of the path of transport of the blank.

Abstract: In packaging machines with an integrated apparatus for the production, storage and conveyance of blanks, the arrangement of the apparatus within the packaging machine is important. It is necessary to ensure that, especially when the reel being, for instance, wound with packaging material is changed, the actual operation of the packaging machine should not be interrupted. For this purpose, a web store (31) is provided, through which a web of material (16) for the production of the blanks (13) and in the form of the reel (17) passes. This web store (31) is located downstream of the reel (17) and upstream of a conveying track (18) for the web of material (16), of a severing station (19) for forming the blanks (13) and of a blank track (26) for feeding the blanks (13) to a folding turret (10) on the rear side (25) of the packaging machine.

Abstract: In packaging machines with an integrated apparatus for the production, storage and conveyance of blanks, the arrangement of the apparatus within the packaging machine is important. It is necessary to ensure that free unimpeded access to the units is possible. On the other hand, the actual operation of the packaging machine should not be impaired. For this purpose, a web of material (16) for the production of the blanks (13) and in the form of a wound reel (17), a conveying track (18) for the web of material (16), a severing station (19) for forming the blanks (13) and a blank track (26) for feeding the blanks (13) to a folding turret (10) are arranged on the rear side (25) of the packaging machine. The conveying track (18) for the web of material (16) extends parallel to the longitudinal mid-plane of the packaging machine. The blank track (26) follows this transversely.

Abstract: An apparatus for producing container jackets from blanks comprises a winding core around which a blank is wound in a manner forming an overlapped area. A pressing element is arranged to engage and press the overlapped area. An actuating mechanism urges the pressing element against the overlapped area to apply a pattern of radial pressing forces along the length of the overlapped area. The actuating mechanism is able to longitudinally shift the pressing force pattern along the overlapped area to adapt the apparatus to the pressing of different types of jackets, such as jackets of different lengths.

Abstract: Apparatus for the packaging of cigarettes by successively folding inner and outer wrappers about a hollow open-ended mandrel, plural of the mandrels being supported from a rotary turret which is moved in step-wise fashion, which enables the use of a metalized foil as the inner wrapper. The apparatus establishes communication between a low pressure source and the interior of the mandrel during at least a portion of the wrapper folding procedure with the resulting suction being applied to the inner wrapper via an open end of the mandrel and through an array of holes provided in the side of the mandrel where opposite free ends of the inner wrapper are positioned after folding.

Abstract: Apparatus for producing packs from at least one foldable blank, especially soft-cup cigarette packs, in which, in a transfer station, individual blanks can be fed by means of a feed unit with a blank-holder to a receptacle (hollow mandrel) of a folding turret and can be transported by this in order to make folds, each blank (21, 22) for taking up by a receptacle (hollow mandrel 23) of the folding turret (20) is held so as to project freely on one side by the blank-holder (holding disc 68) fixed in place and arranged outside the path of movement of the receptacles (23).

Abstract: In the production of cigarette packs, especially soft-cup packs 11, folding tabs have to be provided with glue marks 15. To make accurate glue marks 15 even on packaging machines operating at a high working speed, a glue unit 16 is arranged on the periphery of the folding turret 35 in such a way that glue faces 32 of the glue-coating member 21 having glue wings 22, 23 come up against a side-wall tab 13 to be provided with glue marks 15, this at the same time being deformed elastically. As result of the relative movement, the glue wing 22, 23 is rolled on the side-wall tab 13 by means of the glue face 32, thus producing an accurate glue pattern.

Abstract: A packaging machine for preparing sealed containers filled with contents each from a blank having a thermoplastic synthetic resin layer over each surface thereof. The container is recessed in the central portion of its bottom so as to seat stably. A bottom forming end portion of the blank fitted around a mandrel is folded flat and then pressed against the forward end surface of the mandrel by a press member with its press face to form the bottom of the container. The mandrel end surface defines a cavity for recessing the bottom central portion, and a projection complementary to the cavity is provided on the press face of the press member.

Abstract: An apparatus for processing baglike container blanks by fitting the blank around a pair of forming plates arranged at a distance from each other in parallel, folding a pair of triangular ears flat while projecting the ears sidewise from the portion of the blank to be made into the bottom of a finished rectangular parallelepipidal container, and press-bonding the projected ears to outer surface portions of the trunk of the container at the lateral sides thereof after folding the ears over the outer surface portions. The apparatus includes a device for press-bonding the triangular ears, which comprises a pair of press members and a support member positionable therebetween. Each lateral side trunk portion and each ear folded thereover are clamped between the support member and the press member respectively from inside and outside the blank.

Abstract: A packaging machine including a rotor having a plurality of radial mandrels each for carrying a container as fitted therearound and intermittently drivingly rotatable so that the mandrels successively stop at processing stations equal in number to the number of the mandrels, a container bottom breaker provided at one of the processing stations, and a container holding device provided at the same processing station as the container bottom breaker and having at least one container pressing member to be pressed against the mandrel at rest at said same processing station over the container fitted around the mandrel.

Abstract: An arrangement for the retaining of container blanks (1) in a predetermined correct position on mandrels on a packing machine of the type which manufactures filled and closed packing containers from tubular container blanks and which comprises a stepwise rotatable mandrel wheel which is the bearer of mandrels distributed around the mandrel wheel which are intended to move container blanks applied to the mandrels in correct position between successive processing stations so as to achieve a bottom closure of the blanks. The arrangement comprises clamping elements pressed against the mandrels in the form, for example, of a lever which is adapted to be pivotable in a bracket at one lateral surface of the mandrel. The mandrel includes an upper clamping arm pressed against the mandrel and a lower maneuvering arm rigidly connected with the clamping arm as well as a spring element arranged at the top of the clamping arm (14).

Abstract: A machine for forming cardboard boxes of the double-plinth type provides for the supply to the machine of flat punched sheets, already partially glued, intended to constitute the bottom, the side walls and the hinged lid with a first attached plinth of the box, in parallel with the supply of auxiliary punched sheets for defining, after gluing to the bottom of the box, the second plinth of the box itself. The machine forms the box and automatically glues the auxiliary punched sheets to the box itself.

Abstract: Disclosed is a carton stop assembly for use in a machine which performs operations on a carton blank, and which includes a rotatable hub carrying a plurality of spaced radial mandrels, and insertion mechanism for telescopically inserting a carton blank over one of the mandrels. The carton stop assembly includes a track parallel to the one mandrel, having plurality of detents spaced therealong. An axially-reciprocable shaft has a first end overlying the one mandrel, and a second end overlying the track. The shaft carries track-engaging members at its second end, which enclose the detents on the track thereby stopping the shaft at a plurality of detent positions. A carton-engaging bracket is carried on the first end of the shaft and is arranged to overlie the one mandrel. As the shaft is reciprocated to a number of detent positions, the carton-engaging bracket is also placed at a number of positions along the mandrel.

Abstract: A package wrapper shaping apparatus which has lateral folders and folding slides for wrapping a blank around a shaping mandrel. In order to guide the free portions of the blank in a defined manner in this process and to put their outer edge portions on one side of the shaping mandrel in contact with one another, the lateral folders and the folding slides are embodied in comb-like fashion with teeth, so that they mesh alternately with one another in pairs as they fold over the end portions of the blank.

Abstract: A blank feeder for a packaging machine for use with folded flat blanks unfoldable into tubes of square to rectangular cross section and having different lengths to form containers of different capacities. The feeder includes a magazine for containing a stack of flat container blanks. The magazine comprises an inclined frame defining a downward delivery opening and having opposite side members, an upper member and a lower member, a pair of blank unfolding pawls provided at the bottom surfaces of the upper and lower frame members and partly projecting into the opening, and a pair of movable blank supports reciprocatingly movable between an upper position above the frame and a lower position below the frame through the opening. The upper frame member is movable by a hydraulic cylinder longitudinally of the frame to adjust the distance between the unfolding pawls to the length of the blank.

Abstract: Packing paper receiving and folding method and apparatus are disclosed. The method has the steps of receiving and supporting a packing paper through an opening portion defined between suction arms of a suction ring; moving an arbor into the suction ring accompanying packing paper folded in a U-shape through the opening portion; effecting body folding of the packing paper using the arbor as a core member; and effecting flaps folding within the suction ring while properly maintaining the state of the body folding. The apparatus has a rotatable suction ring including a bracket, a pair of suction arms pivotable with respect to the bracket, the other ends of the suction arms defining an opening portion therebetween so that an arbor can enter therethrough, folding claws mounted on the insides of the suction arms and a bottom clamp positioned in the opening portion; a U-clamp provided within the suction ring for body folding; and a seaming clamp approaching to and departing from the arbor.

Abstract: A forming assembly for automatic machines for forming boxes from semi-finished flat blanks, comprises a plate support with associated suction means for the semi-finished blanks and a forming mould for the erection of the parts of the semi-finished blank intended to constitute the side walls of the box.The forming mould has simplified longitudinal and transverse forming elements which are adjustable in length, width and height, and the plate support has spring feet supported by modular blocks releasably fixed to the sides of the plate. The plate support also has suction members connectible by a system of external tubing to a vacuum source.

Abstract: A packing paper receiving and folding apparatus is disclosed. It has a rotatable suction ring including a bracket, a pair of suction arms axially supported at their one ends in a pivotable manner with respect to the bracket, the other ends of the suction arms defining an opening portion between them so that an arbor can enter from there, folding claws mounted on the inside of at least one of the suction arms, and a bottom clamp positioned in the opening portion to complete the suction ring having substantially an annular outer periphery; a U-clamp provided within the suction ring for body folding, a main presser for pressing an inner bag provided within the suction ring in such a manner as to be openable; and a seaming clamp approaching to and departing from the arbor.

Abstract: An arbor guiding apparatus is disclosed. It has a plurality of arbors arranged at least in two rows of arbors and in tandem on a rotary packing drum with respect to its axial direction. It also has a guiding device of the arbors in the radial direction. The guiding device includes supporting members axially supporting the arbors as well as connecting rods. One of the connecting rods include a threeway shaft at its one end, one way of the shaft being for engagement with a cam follower for guiding the arbor in the first arbor row while another way of the shaft being for engagement with a cam follower for guiding the arbor in the second arbor row. It further includes a device for effecting a relative movement of the arbors in the first and second arbor rows. The relative movement device essentially includes a pinion interposed therebetween.

Abstract: A package forming apparatus comprises a pushing member which is capable of being inserted into a core member to form the bottom of a package by folding an end portion of the sheet material wound on the core member is driven by a driving mechanism. The driving mechanism comprises a slidable shaft provided on a rotary drum for movement in axial direction thereof, an arm member having one end secured to one end of the sliding shaft, a socket member having an intermediate portion rotatably supported at the other end of the arm member, a crank arm having one end secured to one end of the socket, the other end of the extension shaft being secured to the other end of the socket member and coupling member for snap coupling together the arm member and crank arm at a predetermined rotational position. Thus, the pushing member may be movable between the position where it faces with the core member and the position where it does not face the same.

Abstract: An apparatus for folding envelope blanks comprises a plurality of platform assemblies which are rotatably mounted on a base. The platform assemblies are incrementally advanced around the base, and separate mechanisms located around the periphery of the base perform the individual folding operations. Particular advantages are achieved by including the side flap folding mechanism on the platform assemblies so that the folded flaps are held firmly in place until the envelope is removed from the machine.