Abstract: In a film supplying device in a package machine, a film drawn out from a film roll is fed downstream between a drive roll and a driven roll. The drive roll is rotatably supported by a first support fixed to a main frame. A second support for rotatably supporting the driven roll is supported on the main frame so as to be rotatable. The second support is movable between a sandwiched position where the driven roll approaches the drive roll to be aligned therewith to hold the film therebetween, and a retract position in which the driven roll is spaced apart from the drive roll.

Abstract: A control device, comprising a processor and a memory that contains computer readable instructions. When executed by the processor, the computer readable instructions cause the processor to receive a first user input corresponding to first parameters for forming a first unit of packaging material, add first instructions corresponding to the first unit to a queue for a packaging device, receive a second user input corresponding to second parameters for forming a second unit of packaging material, add second instructions corresponding to the second unit to the queue, and transmit the queue to the packaging device to cause the packaging device to create the first and second units of packaging material according to the first and second parameters.

Abstract: A baler for forming large cylindrical bales of crop material is equipped with a wrapping mechanism at the rear side of the baling chamber for introducing wrapping material into the baling chamber for wrapping the cylindrical bales. A storage bin for storing extra rolls of wrapping material extends vertically above the wrapping mechanism and contains a plurality of extra rolls of wrapping material. The storage bin is mounted for pivoting about a connection at a lower end region of the bin so that the bin may be lowered to a loading position in which roll compartments of the bin are at a height commensurate with that of the waist of an average adult person standing on the ground so that supply rolls may be easily moved from these compartments to an operating position within the wrapping mechanism and new rolls may be used to replenish the rolls used from these compartments without an operator having to lift the rolls above his or her waist.

Abstract: A baler and method of using the improved baler to install net rolls into a net wrapping assembly in the baler. The baler includes a separable support tube configured to separate and reattach within the net roll during installation. The baler also includes a platform to support the net roll during installation. The platform also stores net rolls prior to installation.

Abstract: The invention relates to an advancing device (10) for advancing a film web (200) in a bag filling installation (100, having a main advancing drive (20) with at least one driven main advancing roller (22) for advancing the film web (200), wherein for an adjustment of the tensile stress of the film web (200) in the transport direction (T) of the film web (200) an auxiliary advancing drive (30) is disposed before the main advancing drive (20) with at least one driven auxiliary advancing roller (32) for advancing the film web (200).

Abstract: The present invention refers to a packaging machine and a method, wherein one embodiment of a protective device comprises a protective hood and the protective hood is lifted around a shaft comprising two rolls, and is shifted by means of guides in the protective hood on the rolls.

Abstract: A packaging machine and a device for monitoring a roll with film material wound thereon is disclosed. By means of a sensor arrangement, an end of the film material on the roll may be detected. The sensor arrangement includes at least one optoelectric sensor arranged stationary relative to a front side of the roll. The optoelectric sensor is designed such that a portion of an outer circumference of the rotating roll may be detected.

Abstract: An apparatus, associable to a wrapping machine (10), comprises at least one unwinding unit (50) for said wrapping machine (10) for wrapping a load (L) with a film (4), and shuttle means (11, 12; 21, 22) that are movable along a path (P) and suitable for receiving and supporting an unwinding unit (50) to be replaced and to be dismantled from said wrapping machine (10), and/or a new unwinding unit (50) to be mounted on said wrapping machine (10); the shuttle means (11, 12; 21, 22) operates along a substantially horizontal operating direction (T) so as to dismantle and receive from said wrapping machine (10) an unwinding unit (50) to be replaced and/or so as to transfer and mount on said wrapping machine (10) a new unwinding unit (50); the apparatus (1) comprises a supporting unit (60) suitable to be fixed to said wrapping machine (10) and arranged to he coupled to, and support, said unwinding unit (50), said unwinding unit (50) comprising first coupling means (58), and said supporting unit (60) comprising secon

Abstract: An apparatus comprises a reel-holding unit for a wrapping machine for wrapping a product with a film unwound by a plurality of rollers from the reel and a reel-changing unit for replacing a finished reel with a new reel, the reel-holding unit and the reel-changing unit being mutually positionable in a reel-change configuration in such a manner that the new reel can be positioned instead of the finished reel, the reel-changing unit being provided with elements that define a curvilinear path for an initial portion of the film of the new reel, the elements being positionable in the reel-change configuration such that when a roller of the plurality of rollers is positioned at a curve, at least one of the elements is completely interposed between the film and the roller.

Abstract: A film cassette includes a film roll, a cassette case and a roller portion. The film roll is a wound film for packaging. The cassette case is configured to rotatably house the film roll, and includes a discharge opening from which the film pulled out from the film roll is discharged to the outside of the cassette case. The discharge opening extends in a direction parallel to a first rotation axis, which is a rotation axis of the film roll. The roller portion is rotatably supported by the cassette case in the vicinity of the discharge opening. The roller portion is rotatable around a second axis, which extends parallel to the first rotation axis.

Abstract: A supply group of a packing band from reels, with an automatic change of the reel for an object-packing machine, includes a supply conveyor along which the packing band runs, a device for transversally cutting the band located at a start of the supply conveyor, a device for supporting one reel of the band of slim packing material and a device for supporting a second reel of band of slim packing material. The group includes a first entry conveyor of the first band from the first reel to the supply conveyor, a second entrance conveyor of the second band from the second reel to the supply conveyor, a device for advancing for introducing or extracting the front end of the first band to or from the supply conveyor, and a device for advancing for introducing or extracting a front end of the second band into or from the supply conveyor.

Abstract: Strip material used in packaging machines is fed by a rotary support unit carrying a roll of a first or a second strip material, installed downstream of a feed unit supplying a first wrapping material along a first direction toward an operating station where inner wrappers are fashioned for the particular packet in production. The first strip material is decoiled by rollers and guided along the first direction to an operating station where coupons are prepared for inclusion as inserts, placed between the inner and outer wrappers of each packet. The second strip material is taken up and diverted by further rollers along a second direction, such that it is supplied to a cellophaner where it is cut and folded to fashion leaflets applied as onserts to the outer wrapper of each packet before being overwrapped.

Abstract: A bale wrapping system for wrapping a bale while maintaining independent control over both the sensor and brake assemblies. The bale wrapping system generally includes a support frame to secure a roll of wrapping material to a baler, a brake assembly secured to the support frame, wherein the brake assembly is adapted to brake a rotation of the roll of wrapping material, and a sensor assembly secured to the support frame, wherein the sensor assembly includes a sensor wheel adapted to measure an amount of outputted wrapping material. The brake assembly and the sensor assembly operate independent of each other with respect to the roll of wrapping material and the support frame. The support frame may be retrofitted to an existing baler through a coupler and a bracket extending from an elongated rod connecting opposing sides of the support frame.

Abstract: An apparatus for wrapping a stack of objects with a film has first and second supplies of films and a pull-down device shiftable vertically along the stack of objects. A film-feed head has a drive roller rotatable about an axis in the film feed head and first and second pairs of counterrollers angularly offset from each other relative to the drive-roller axis. The drive roller and the pairs of counterrollers are relatively shiftable between end positions in each of which one of the pairs is spaced from the drive roller and the other pair is engaged with the drive roller. The first and second films pass between the respective first and second pairs and the drive roller. An actuator can shift the first and the second pairs of rollers relative the drive roller for pinching the films against the drive roller and, on rotation of the drive roller.

Abstract: In one embodiment, a starter roll for a baler includes a continuous chevron-shaped rib provided on a contact surface of the starter roll. The rib may include a center portion arranged generally parallel to the longitudinal axis of the starter roll and outwardly and rearwardly extending wings. A plurality of ribs may be provided to form guide channels for guiding wrapping material that is provided to the bale and engaged by the starter roll outward to cover the edges of a bale and distribute the wrapping material over the lateral surface of the bale.

Abstract: The present invention relates to an apparatus for printing pattern or indicia onto a gelatin ribbon. It comprises a transfer station with a print roll and a motor-driven casting roll provided for forming a gelatin ribbon. The transfer station is positioned in relation to the casting roll in such a way that the gelatin ribbon is sandwiched between the casting roll and the transfer station; elastic tackiness of a passing gelatin ribbon causes the rotation of the print roll. The apparatus further comprises an adjustment means, wherein the adjustment means are adapted to provide finely-tuned positioning of the transfer station in relation to the casting drum, and balance pressure exerted by the transfer station on the passing gelatin ribbon thus facilitating on optimal printing result.

Abstract: A feeding and reversing mechanism for a strapping machine includes a forward-reverse wheel assembly and a tension wheel assembly which are mounted on a base and arranged in such a way to provide larger contact areas between a strapping band and the two wheel assemblies. The feeding and reversing mechanism further includes first and second spring units. The first spring unit helps to keep a suitable gap between an active wheel and a passive wheel of the tension wheel assembly for the strapping band to pass through. The second spring unit helps to move the passive wheel toward the active wheel of the tension wheel assembly, so that the strapping band can be clamped between the passive wheel and the active wheel tightly to facilitate reversing and tightening of the strapping band.

Abstract: The present invention is directed to opening a spring roll pack in a controlled manner. A support surface is provided that is positioned to support the spring roll pack. A compression mechanism compresses the spring roll pack. As the spring roll pack is compressed, the spring roll pack is rotated while an accumulator winds wrapping material of the spring roll pack.

Abstract: An apparatus for packaging groups of containers of liquid products into bundles includes at least one pair of wrapping stations of groups of containers. Each station includes means for wrapping an extensible film around a group of containers and manipulating means for feeding and discharging the groups of containers to/from the wrapping station, at least one feeding line of the containers, and at least one discharge line of the bundles. Advantageously, the feeding and discharge lines are shared between the different wrapping stations.

Abstract: A mandrel for supporting a roll of flexible web material has a brake mounted thereto that can be selectively activated to apply a braking force to rotation of the roll of flexible material about the mandrel. The brake includes an inflatable bladder and a shoe, such that when the bladder is inflated the shoe is pushed into engagement with the core of the roll of flexible material. The mandrel is particularly well suited for use with a packaging machine in which a sheet of flexible material is indexed form the supply roll. Before the completion of an indexing cycle, the bladder may be inflated such that further advancement of the sheet of flexible material or rotation of the supply roll is countered and inhibited. This braking of the supply roll advantageously introduces tension to the sheet of flexible material without the use of a dancer roll arrangement.

Abstract: A method of determining a wrap force or payout percentage at which to wrap a load with packaging material may include dispensing packaging material. The method may also include forming a tear in a portion of the packaging material. The method may further include identifying a first payout percentage at which the tear exhibits a first behavior. The method may also include identifying a second payout percentage at which the tear exhibits a second behavior. The method may further include selecting a third payout percentage between the first payout percentage and the second payout percentage, for wrapping the load.

Abstract: Film supply apparatus (2) has two film holders (22a, 22b) supporting two rolls of film as film (101) on a use side and film (100) on a stand-by side respectively, feed rollers (3) for feeding film (101) on the use side, film holding member (34) holding a leading end portion of film (100) on the stand-by side, sucker (36) pulling back film (100) on the stand-by side upstream in a feeding direction and heater bar (31) heat-sealing two films (100, 101). Sucker (36) attracts film (100) by suctioning and pulls film (100) back to a position where a leading end portion thereof faces heater bar (31).

Abstract: A wrapper dispensing mechanism for round balers includes a feed roller shiftable generally toward and away from a baling element of a bale forming mechanism so as to be selectively brought into and out of engagement with the baling element. The feed roller is driven by the baling element when the feed roller is in engagement with the baling element, with the feed roller and the baling element cooperatively defining a temporary nip therebetween during engagement. The feed roller is disposed to at least partially vertically support the roll of supply material thereon. A method of dispensing wrapping material from a supply roll includes supporting the supply roll at least partially on a feed roller, shifting the feed roller into engagement with the baling element to create a temporary nip therebetween and drive the feed roller, and driving the baling element while the feed roller is in engagement therewith.

Abstract: A film applicator that includes a frame, two plugs connected to the frame, a bracket connected to the frame, a film cutter connected to the bracket, a roller, and an adjustable tensioning roller. The roller and the adjustable tensioning roller are connected to the bracket. The tensioning knob can be tightened and increase the force required to rotate the adjustable tensioning roller.

Abstract: A packaging machine and a device for monitoring a roll with film material wound thereon is disclosed. By means of a sensor arrangement, an end of the film material on the roll may be detected. The sensor arrangement includes at least one optoelectric sensor arranged stationary relative to a front side of the roll. The optoelectric sensor is designed such that a portion of an outer circumference of the rotating roll may be detected.

Abstract: Material usage tracking systems for monitoring and optimizing usage of stretch film on a stretch wrapping machine is provided. A system includes a rotary encoder collar securable to a pre-stretch roller of a stretch wrapping machine and a proximity sensor securable proximate to the rotary encoder collar. Upon installation, the proximity sensor measures the revolutions of the pre-stretch roller when the stretch wrapping machine is wrapping a product or pallet. The system also includes a controller in communication with the proximity sensor. The controller converts the revolutions of the pre-stretch roller to measurements of the amount of stretch film pulled off a film roll in the stretch wrapping machine based on data received from the proximity sensor. Different uses for the data collected by the material usage tracking system and different ways of presentation of the data are also provided.

Abstract: A wrapper dispensing mechanism for round balers includes a feed roller shiftable generally toward and away from a baling element of a bale forming mechanism so as to be selectively brought into and out of engagement with the baling element. The feed roller is driven by the baling element when the feed roller is in engagement with the baling element, with the feed roller and the baling element cooperatively defining a temporary nip therebetween during engagement. The feed roller is disposed to at least partially vertically support the roll of supply material thereon. A method of dispensing wrapping material from a supply roll includes supporting the supply roll at least partially on a feed roller, shifting the feed roller into engagement with the baling element to create a temporary nip therebetween and drive the feed roller, and driving the baling element while the feed roller is in engagement therewith.

Abstract: A stepless adjustable film packing device for a roll of film without a reel includes a first tube and a second tube. The first tube is formed with a first threaded portion. The second tube is formed with a second threaded portion corresponding to the first threaded portion of the first tube for engaging with the first threaded portion. Thereby, the length of the film packing device is adjustable by adjusting the first threaded portion with respect to the second threaded portion according to the width of a roll of film.

Abstract: A film wrapping machine or apparatus wherein various operational conditions and data can be detected, determined, and subsequently utilized for diagnostic, operational performance, and safety characteristics, as well as for implementing improvements in operational performance so as to not only achieve optimal or predetermined performance characteristics but to also achieve economical usage of the wrapping or packaging film.

Abstract: A device for controlling a twist of a tube of packaging material in relation to an apparatus for transverse sealing of the tube comprises a number of rollers forming an aperture through which the packaging material is arranged to pass. A roller surface of each of the rollers is arranged to be in contact with an outer surface of the tube. The direction of the rotation axis of at least one of the rollers is adjustable to control the twist of the tube. A method for controlling a twist of a tube of packaging material comprises allowing the packaging material to pass through an aperture formed by a number of rollers with a rolling surface in contact with an outer surface of the tube, and adjusting the direction of the rotation axis of at least one of the rollers to control the twist of the tube.

Abstract: A wrapping means tensioning device is provided for a round baler and comprises an idler assembly and an application assembly. Wrapping means, like net, when drawn during a wrapping cycle acts onto the idler assembly, which in turn will press an application element of the application assembly against a roll, on which wrapping means is stored. This provides for proper tension during a wrapping cycle without the need for springs or the like, the force of which would need to be overcome, when a wrapping device is brought into a non-operative loading mode.

Abstract: The invention relates to a method and device for heat-sealing windows into folding carton blanks for producing liquid-proof folding cartons having film windows. Pieces of film that are cut to measure are placed on the window openings of the folding carton blanks and the edges of the pieces of film are heat-sealed with the folding carton blanks so as to be liquid-proof using heated pressure segments or heat-sealing dies. The folding carton blanks, together with the pieces of film, are fed to a tail pulley for a transport belt by means of the transport belt and are inserted in the gap between the tail pulley and the transport belt resting thereon. In this gap, the blanks and pieces of film are continuously heat-sealed together by means of at least two heated pressure segments that are disposed on the outer periphery of the tail pulley and push radially from inwards against the transport belt in the area of deflection of the transport belt and thus onto the edges of the pieces of film.

Abstract: The present invention relates to a soft roll material-translating device for the mechanical apparatus of machining and cutting after severing. The existing pillow type of automatic packing machine can only pack produces using one single roll of film, so the work efficiency is low. Consequently, the present invention aims at improving the work efficiency and it adopts following technical solutions: the soft roll material-translating device includes a frame (1), a right rotating unit (3) with right folding rod pair (5) and a left rotating unit (2) with left folding rod pair (4) are mounted on the frame (1), the right rotating unit (3) and the left rotating unit (2) can both rotate around a rotating center. By adding a few of mechanisms, the work efficiency of the device can be multiplied one times.

Abstract: An apparatus for selectively dispensing a web from a plurality of rolls of serrated bags or layflat tubing comprises a web selector for selecting and advancing a web from the plurality of rolls; a bag driver for advancing the selected web and separating a bag from the web; and a bag transfer device for transporting the separated bag from the bag driver to a location for processing. A sealer/cutter is used to produce a bag from the layflat tubing. A method of selectively dispensing a web from a plurality of rolls of serrated bags or layflat tubing comprises selecting and advancing a web from the plurality of rolls of serrated bags; advancing the selected web and separating a bag from the web; and transporting the separated bag to a location for further processing. In the case of layflat tubing, the selected web is sealed and cut to make a bag.

Abstract: A film feeding device etc. in which, even if film rolls in which tapes are applied to joint between films of the rolls are used, an occurrence of a bag making failure caused by the tape is prevented. A film feeding mechanism (10A) has a receiving member (72) for holding the leading edge of a film (1B) of the standby side and a joining sealer (71) for joining films (1A, 1B). A tape (B) applied to the film (1A) on the use side is detected by a sensor (83), and according to the result of the detection, a cutter (81) cuts of the film (1A) at a portion on the downstream side of the tape. Then, the cut film (1A) and the film (1B) of the standby side are joined by the joining sealer (71), and the two films joined are sent as a long film.

Abstract: In order to produce tobacco bags from sheet material having a pocket and a fold-over flap and a tape as closure means, the tape is applied (as are possibly further applications) to a continuous sheet-material web (22) for producing the bags by transversely directed severing cuts. The procedure here is such that the sheet-material web (22) is provided in the first instance, by folding, with a continuous web leg and then with transversely directed connecting seams in the region of the web leg, and thereafter the tape is applied to the sheet-material web prepared in this way. Bags (10) provided with a tape are then severed from the sheet-material web. The tapes are applied to the sheet-material web (22) in the region of an application station (30). Following this, the bags (10) are severed in a severing station (27).

Abstract: A tool used for wrapping boxes or shipments with plastic or other wrap in an ergonomic manner, as in warehouses or shipping departments. The tool is elongated and allows the user to rotate about the object to be wrapped. A tensioner makes it possible for the user to ensure that the wrapping is taught. A stopper allows the tool to come into contact with the ground.

Abstract: A wrapping device is mounted at an exterior of a bale forming chamber of a large round baler and includes two wrapping material supply rolls comprised, if desired, of two types of wrapping material, which may optionally be brought together and introduced through an inlet of the bale forming chamber. In this way, it is possible, for example, to supply film with a netting in order both to bind and protect the bale.

Abstract: Large cylindrical bales of hay, straw, or other forage or fodder are usually wrapped with a filament-type product, typically twine, or a sheet-type product, typically netwrap material, after a bale has reached a predetermined size. A method and apparatus are disclosed that permits the bale to continue to form during part of the wrapping process. A delay occurs between the initiation of the wrapping step and the alarm for the operator to stop the forward movement of the baler. By inserting the wrap material to an entry throat of the baler, new crop material may be added to the bale while the leading edge of the wrap material travels around the bale. The operator is notified only when the feed of additional crop material needs to be stopped for the wrapping operation to conclude. The present invention is applicable to the use of sheet or filament wrapping materials for binding round bales.

Abstract: In a packaging apparatus, when replacing a preceding single-faced corrugated fiberboard (wrapping material) with a subsequent single-faced corrugated fiberboard, a draw-out roller is operated such that the preceding single-faced corrugated fiberboard is drawn out to its trailing end. At this time, a reserve roller, around which the single-faced corrugated fiberboard is trained, is moved such that the single-faced corrugated fiberboard, which has been drawn out, is accumulated thereat. Then, the trailing end of the preceding single-faced corrugated fiberboard and a leading end of the subsequent single-faced corrugated fiberboard are joined together at a joining device. In this way, the preceding single-faced corrugated fiberboard can be used up until its final end, and thus there is no waste of the single-faced corrugated fiberboard.

Abstract: A blistering machine for producing blister packs has a production line, which includes consecutively: at least one thermoforming station of a first continuous band of thermoformable material; a station for feeding the products and filling the blister band; a feeding station of a second band, feeding the second band over the blister band; a closing station, including two opposite rollers; and a cutting station, in which the blister pack band is cut into respective blister packs. A tension mechanism is situated upstream of the closing station, to cooperate with the rollers of the closing station, to perform a selected tension on at least the first band.

Abstract: An assembly is disclosed for unrolling and pre-stretching stretch film as the film is fed from the assembly to goods/products to be wrapped or packed. The assembly comprises a first member for controlling the unwinding of the film from a spool, and a cutter arranged downstream of the control member for lacerating the film, the assembly further comprising a second member, downstream of the cutter, for preventing return of the film in a direction opposite to that in which the film leaves the assembly. A cutting procedure, according to another aspect of the present invention, comprises the steps of: following an initial stop of the film during which it is cut, the first, control member is unlocked so as to permit the laceration zone of the film to pass downstream of the second, return preventing member. The film then comes to a new stop to complete the cut following relative motion between the assembly and the goods/products to be wrapped or packed.

Abstract: A plastic bag making machine is disclosed, and includes a dancer assembly that receives film from which the bags are to be made. The film travels from the dancer assembly to a drum-in nip and then to a sealing drum. After the sealing drum, the film travels to a drum-out nip. Then the film travels to a device-in nip, vertically through a processing device, and then to a device-out nip. A controller is connected to and controls the drum-in nip, the drum-out nip, the device-in nip, the device out nip, the dancer assembly and the sealing drum (including the seal bars and/or the sealing blanket drives). The controller includes a memory in which at least one set of operating parameters used to control the machine is stored.

Abstract: Device for strapping, especially for longitudinally strapping packaged material with strapping, comprising a strap roll, from which the strapping, which is to be processed, is pulled with formation of a strap storage system for a subsequent strapping process. A movable strap carrier is provided for pulling off the strapping and can be moved from a first position into a second position, taking along the strapping, while the strapping is arrested at a place, downstream from the strap carrier with the aid of holding means.

Abstract: A wrapping material indicator arrangement for a wrapping machine, in particular a rotobaler. The indicator is supported on the circumference of a wrapping material roll, from which wrapping material is withdrawn during a wrapping operation. A rotating counter roll, pressed against the wrapping material roll, drives a rotating wheel mounted on an arm that allows the wheel to translate through an arc. The translation of the wheel and arm indicates the amount of wrapping material left on the wrapping material roll and its rotation allows an operator to monitor the operation of the rotobaler for malfunctions during the wrapping operation.

Abstract: An automatic high-speed wrapping system for wrapping packages in heat sealable thermoplastic film includes a film delivery unit wherein the film is dispensed and wrapped around the packages at a high rate of speed as the packages travel through the system. The packages travel continuously in a straight line through the system and are delivered at the input end of the system by a feed conveyor into a wrapping station where the packages are surrounded by the film, thence to the side sealing mechanism which forms a seal while severing the salvage from the packages, then into an end sealing mechanism where both ends of the packages are sealed and the film web connecting succeeding packages is severed. The system has a variety of components which are adjustable to efficiently accommodate a variety of product dimensions. The spacings of the various components are represented one calibrated scales for efficient and accurate set up and operation of the system.

Abstract: A unit for packing products, wherein a feed line, for supplying a strip of packing material, feeds the strip with a given movement to a cutting device for cutting the strip into a succession of sheets of packing material, and then to a feed station for feeding each sheet to a packing wheel moving with a further movement through the feed station; and wherein a compensating roller, having a compensating store, is interposed between the cutting device and the feed station.

Abstract: In a packaging apparatus, when replacing a preceding single-faced corrugated fiberboard (wrapping material) with a subsequent single-faced corrugated fiberboard, a draw-out roller is operated such that the preceding single-faced corrugated fiberboard is drawn out to its trailing end. At this time, a reserve roller, around which the single-faced corrugated fiberboard is trained, is moved such that the single-faced corrugated fiberboard, which has been drawn out, is accumulated thereat. Then, the trailing end of the preceding single-faced corrugated fiberboard and a leading end of the subsequent single-faced corrugated fiberboard are joined together at a joining device. In this way, the preceding single-faced corrugated fiberboard can be used up until its final end, and thus there is no waste of the single-faced corrugated fiberboard.

Abstract: A wrapping machine having a pre-stretching device including a first pre-stretching roller and a second pre-stretching roller, which are tractively coupled via power transmission gears. A first deflecting pinch roller has been fitted to be pressed against the first pre-stretching roller to form a first nip for the film web passed between the first deflecting pinch roller and the first pre-stretching roller. A second deflecting pinch roller has been fined to be pressed against the second pre-stretching roller to form a second nip for the film web passed between the second deflecting pinch roller and the second pre-stretching roller. A lever mechanism moves the first pre-stretching roller between an engagement position and a disengagement position, so that the lever mechanism also moves the first deflecting pinch roller apart from the first pre-stretching roller and simultaneously the second deflecting pinch roller apart from the second pre-stretching roller to allow easier thread-in of the film web end.

Abstract: A film folding and supplying apparatus for machines for packaging products with stretchable film comprising a pleating means for folding ends of a film traveling in a direction, to modify the width of the film in such a manner that the last edges of the film on the bottom of a product to be wrapped do not laterally project from the bottom of the product. The pleating means cooperates with rolling friction of the traveling film and comprises an elongate, flat and fixed guide having longitudinal edges with projecting rows of flat, idle and rounded edges wheels; and respective lateral guides having projecting rows of flat, idle and wheels with rounded edges which fold the film.