WO2023227774A2

WO2023227774A2 - System for converting a web-shaped starting material into packaging pouches

Info

Publication number: WO2023227774A2
Application number: PCT/EP2023/064241
Authority: WO
Inventors: Mark Kollmer; Bastian Schalk
Original assignee: Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co.
Priority date: 2022-05-27
Filing date: 2023-05-26
Publication date: 2023-11-30
Also published as: WO2023227774A3; DE102022113463A1

Abstract

The invention relates to a system for converting a web-shaped starting material into packaging pouches, said starting material defining a web longitudinal direction, extending between two longitudinal edges that are opposite one another in the web width direction, and being made in particular of paper or cardboard. The system comprises: a drawing-in device for drawing off the web-shaped starting material; and a forming device for continuously forming the web-shaped starting material into a material web having a V- or U-shaped cross-section with a receiving cavity that extends in the web longitudinal direction, the forming device comprising at least one folding means, such as a folding roller, which can be brought into abutting contact with the material web in order to insert two wings, that protrude from a pouch base into the web-shaped starting material, transversely to the web longitudinal direction, in particular centrally, preferably in the web width direction, between the opposite longitudinal edges. The system also comprises a deflection means, such as a deflection roller, for guiding the web-shaped starting material from the drawing-in device along the deflection means to the forming device. In the system according to the invention, the deflection means, in particular the deflection roller, has a peripheral contact area of at least 10°, in particular at least 45°, preferably at least 60°, particularly preferably at least 90°, which can be brought into contact with the web-shaped starting material.

Description

SYSTEM FOR CONVERTING A WEB-SHAPED STARTING MATERIAL INTO PACKAGING BAGS

The present invention relates to a system for converting a sheet starting material into packaging bags. A web-shaped starting material defines a longitudinal direction of the web and expands between two opposite longitudinal edges. The web-shaped starting material preferably consists of paper or cardboard.

Packaging bags, a packaging material web and packaging material blanks are known from DE 10 2020 114211 Ai. Such packaging bags, etc. are used in the packaging industry to pack objects, especially shipping items, in particular to protect them from damage during shipping.

Various systems are known for forming packaging bags from strips of packaging material for holding objects such as shipping items.

US 9,725,194 B2 describes a system for automatically packaging objects on a sliding plane. A web material is deflected from a feed plane into the sliding plane. When deflecting, the packaging web material is pulled along edged wedges so that elongated grooves are created in the packaging web material. Downstream of the wedges, the packaging web material should be folded over to form a packaging material web from which blanks can be removed. The system has a large length in the longitudinal direction of the web and therefore has a large footprint, which is undesirable given the limited space in a shipping center. The creation of grooves using edges has proven to be a frequent cause of web breaks, which is disruptive to the continuous production of packaging material webs and sections thereof. The packaging material cuts produced with the system sometimes have inadequate cushioning properties for damage-free transport of shipping items.

GB 1,067,166 describes a system for packaging objects. The system includes a supply roll of a weldable web material such as polyethylene or polypropylene. Starting from the supply roll, the web material is unrolled downwards via guide rollers and introduced between a forming channel delimited by side walls transversely to the longitudinal direction of the web and an insertion channel extending inside the conveying channel. The insertion channel is dimensioned for a specific type of similar shipping item. In the course of the insertion channel, the packaging material web, which is open at the top, can be filled with objects such as shipping items from above. A slide is used to move the inserted objects out of the pair of channels in the conveying direction into one Packaging material tube pushed. At the end of the insertion channel, the edges of the web material are folded inwardly by a pair of folding lips and sealed with a first punch to form the packaging material tube. A second punch arranged further downstream of the conveyor stream seals the front and rear edges of the tube in the longitudinal direction of the web and includes a cutting edge for separating packaging bags. From an ecological point of view, it is desirable to avoid weldable plastic material sheets. The supply roll positioned at the top can only hold a very limited amount of the raw material web. Furthermore, due to its weight, it is heavy and takes a lot of time to load. Forming using a pair of channels has also proven to be a frequent cause of web breaks, which is disruptive to the continuous production of packaging material webs and sections thereof. The channel pairing is dimensioned to suit specific objects, so that it is not flexible for packaging different objects of variable shapes, but different channel pairs have to be provided for different object types and the system has to be converted with great effort. It has also been shown that the longitudinal edges of the packaging material web protruding in the area of the channel pair pose a risk of injury. Using the slider is tiring for users and takes time. If a user inserts items that are too large, they or the packaging material web may be damaged when using the slider. The facility also has a large footprint, which is undesirable for small logistics centers.

It is an object of the invention to overcome the disadvantages of the prior art, in particular to provide a system for converting a web-shaped starting material, which is easy, safe and reliable to handle and suitable for packaging a wide variety of objects while requiring little space

Accordingly, a system is provided for converting a web-shaped starting material, wherein the starting material defines a longitudinal direction of the web and extends between two longitudinal edges opposite in the direction of the web width. In particular, the starting material includes, in particular predominantly, d. H. at least 75%, in particular at least 80%, preferably at least 90%, paper or cardboard or consists of it.

Sheet material or sheet material, such as the starting material, has a longitudinal direction of the sheet. The sheet material preferably has a constant sheet/material thickness. Web-shaped material generally expands in the web width direction transversely to the web longitudinal direction and, when viewed transversely to the web direction, in particular has a constant width. In the web width direction, the web-shaped material has opposing longitudinal edges. In the web width direction, the packaging material web or the web-shaped starting material ends at a longitudinal edge or edge extending in the longitudinal direction of the web. on a longitudinal edge. For example, the web-shaped starting material has a width of at least 200 mm and in particular of at most 2000 mm. For example, the width is approximately 500 mm. Web-shaped material generally has much larger dimensions in the web longitudinal direction than in the web width direction, for example the extent of the web material in the web longitudinal direction can be at least 20 times, at least 50 times, at least 100 times, at least 1000 times larger than in the web width direction . Sheet material generally has much larger dimensions in the sheet width direction than in the thickness direction, for example the extent of the sheet material in the sheet width direction may be at least 20 times, at least 50 times, at least 100 times, at least 1000 times larger than the sheet /-Material thickness. Optionally, at least one longitudinal edge strip adjacent to a longitudinal edge is provided at least in sections with a cold-sealable adhesive. The adhesive width of the longitudinal edge strip provided with cold-sealable adhesive can be at least 10 mm and in particular at most 300 mm, 250 mm or at most 200 mm. For example, both opposite longitudinal edges can be provided with cold-sealable adhesive.

The web-shaped material is preferably formed predominantly or entirely from a cellulose-based material. In particular, the web-shaped material can be formed from paper, such as recycled paper, and/or cardboard, in particular corrugated cardboard. A web-shaped material, in particular made of paper or cardboard, in particular corrugated cardboard, is preferably provided. The material web can be made from paper, such as recycled paper, and/or 100% recyclable paper, which can be made without chemical ingredients. Recycled paper is in particular paper materials with a small proportion (less than 50%) of paper material containing fresh fibers. For example, paper materials that contain 70% to 100% recycled paper, especially based on waste paper, are used. The recycled paper in the context of this invention can be paper material which can have a tensile strength index along the machine direction of at most 90 Nm / g, preferably a tensile strength of 15 Nm / g to 60 Nm / g, and a tensile strength index across the machine direction of at most 60 Nm / g can have, preferably a tensile strength of 5 Nm / g to 40 Nm / g. To determine the tensile strength or the tensile strength index, a standard DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used. Additionally or alternatively, a recycled paper property or waste paper property can be characterized by the so-called bursting resistance. A material in this sense is recycled paper with a burst index of at most 3.0 kPa*m ^A 2/g, preferably with a burst index of 0.8 kPa*m ^A 2/g to 2.5 kPa*m ^A 2/g. The DIN EN ISO 2758 standard is used to determine the burst index. Furthermore, the packaging material has a mass per unit area of in particular 40 g/m2 to a maximum of 140 g/m2. The railway-shaped one Starting material can be in the form of a roll of material web or a zigzag folded stack of packaging material, also known as a fanfold stack.

The system according to the invention comprises a feed device for pulling off the web-shaped starting material, in particular from a material web supply, such as a supply roll. The feed device can, for example, comprise opposing conveyor rollers, conveyor rollers or the like. It may be preferred that the feed device has a drive unit, such as an electric motor, which drives at least one conveyor roller or roller. The feed device is preferably designed to pull the web-shaped starting material from a material web supply, for example a zigzag-folded supply stack, which can also be referred to as a fanfold stack, or from a supply roll.

The system according to the invention further comprises a forming device for continuously forming the web-shaped starting material into a material web with a receiving cavity extending in the longitudinal direction of the web. The forming device is preferably designed to transform the, in particular originally flat, web-shaped starting material into a material web with a V- or U-shaped cross section. Preferably, the receiving cavity of the material web has an insertion opening extending in the longitudinal direction of the web. In particular, the receiving cavity is delimited by a pocket base formed opposite the insertion opening and laterally by protruding wings of the material web. The material web can, for example, be formed with a V-shaped cross section. The forming device can, for example, be designed to transform an originally flat web-shaped starting material by at least one wing, which extends along a first (for example right in the direction of conveyance) or second (for example on the left in the direction of conveyance) longitudinal edge towards the other wing is bent or folded. Alternatively, the material web can be formed with a U-shaped cross section. The forming device can be designed to bend or fold opposite wings on both opposite longitudinal edges of the originally flat web-shaped starting material onto one another to form a spine extending along the center of the web material. In the system for converting the web-shaped starting material, the forming device is preferably arranged downstream of the feed device in the conveying direction.

In particular, the forming device comprises at least one folding means, such as a folding roller, which can be or is brought into contact with the material web, such as a rolling contact, a sliding contact or the like. The folding means can in particular be designed and set up to press against the material web. The folding means can in this way be relative to at least one other means determining the conveying path of the web-shaped starting material or the material web, in particular at least one upstream of the conveying stream. be arranged downstream, in relation to the conveying direction to the right or left relative to the folding means, so that the folding means, together with the at least one other means, causes a deformation of an originally flat web-shaped extension. In particular, the at least one other means determining the conveying path of the web-shaped starting material or the material web can also be brought into contact with the starting material or the material web.

The forming device comprises at least one folding means, such as a folding roller. The forming device comprises at least one folding means, such as a folding roller, which pushes against the material web between the opposite longitudinal edges in order to introduce two wings protruding from a pocket base into the web-shaped starting material. Preferably, the folding means pushes against the material web in the web width direction, particularly centrally between the opposite longitudinal edges.

The system for converting a web-shaped starting material into packaging bags further comprises a deflection, such as a deflection roller, for guiding the web-shaped starting material from the feed device along the deflection to the forming device. In the conveying direction, the deflection is arranged between the intake device and the forming device. The deflection can expediently implement a means which, at least in sections, determines the conveying path of the web-shaped starting material between the feed device and the forming device. In particular, the forming device can be coordinated with the web-shaped starting material, the feed device and/or the forming device in such a way that the web-shaped starting material has a flat web-shaped extension on the forming device, in particular along an at least partial loop around the forming device. A flat web-shaped extension of the web-shaped starting material is to be understood in particular in relation to the extension of the starting material in the web width direction. In the conveying direction or the longitudinal direction of the web corresponding to the conveying direction, the flat web-shaped starting material can be guided along a curved course, in particular by deflection, the feed device and, if necessary, a support roller or the like, whereby the curved course can be C-shaped or S-shaped in sections, for example. The deflection is preferably designed to change the course of the web-shaped starting material in the conveying direction, for example by at least 10° and/or not more than 180°.

The deflection can be shaped, for example, as a roller, in particular as an ideally cylindrical roller. Preferably, a deflection designed as a roller can be in one piece and extends along the width of the web-shaped starting material. Alternatively, a deflection formed as a roller can be convex, with the diameter in each case End area of the roller is smaller than the diameter in the middle. The advantage of this configuration is that the deflection has a positive influence on the forming device downstream of it in the direction of flow as well as on the web-shaped starting material, and that the web-shaped starting material is held centrally in the system relative to the forming device, which means that the system can be designed to be particularly compact can and on the other hand it is essentially possible to dispense with guide means for laterally guiding the web-shaped starting material. Furthermore, the web-shaped starting material can be pre-stretched by a convex design of the deflection, so that the forming process following it is simplified and, if necessary, can be designed to be more reliable, and the conveying speed can be increased. The term convex design preferably refers to a continuously curved design. Alternatively, gradations that come close to a convex silhouette are also conceivable. In a simple manner, there is only a single gradation, with the deflection designed as a roller having the shape of a double truncated cone, and in the middle area of this roller the diameter is largest and in the respective end area of the roller the diameter is smaller. Convex designs of such a deflection designed as a roller have proven to be very effective, with the different peripheral speeds having no noticeable influence on the resulting friction between the web-shaped starting material and the roller.

It is conceivable that the deflection is composed of several roller and/or roller sections arranged next to one another, optionally distributed, in the transverse direction across the width of the web-shaped starting material. This plurality of roller and/or roller sections have a common pivot point along a straight central longitudinal axis. In this case, an aforementioned convex design of a deflection with a deflection roller or roller made up of several sections can be realized, in particular by at least individual rollers and/or individual roller sections having different outer diameters, preferably the overall view of all the rollers put together to form a deflection roller or roller - and/or roller sections represent a convex structure in the manner of a convex enveloping silhouette.

It may be preferred that the deflection interacts with a dancer, which is located upstream of the deflection in the conveying direction. In principle, such a dancer can be trained as a role. The dancer can implement a tensioning device through which the web-shaped starting material is always kept under tension between the feed device and the forming device. The clamping force can be preset and ensures a reliable forming and removal process, as will be explained in more detail later. The deflection, for example a deflection roller, is designed and set up to guide the web-shaped starting material from the feed device along the deflection to the forming device. The deflection of the forming device in the conveying direction is preferably arranged upstream. According to the second aspect of the invention, it is provided that the deflection, in particular the deflection roller, has a circumferential contact area of at least 10°, in particular at least ⁴⁵ °, preferably at least 60°, particularly preferably at least 90°, which can be brought into contact with the web-shaped starting material is or is in contact. The deflection preferably comprises a partially cylindrical or cylindrical, in particular rotating, means which determines the conveying path of the web-shaped starting material, which is preferably realized by a, in particular a single, deflection roller. It may be preferred that the deflection is designed and set up to redirect the conveying direction of the web-shaped starting material web at the exit of the deflection in relation to the conveying direction at the entrance of the deflection in accordance with the peripheral contact area. Due to the deflection, the system for converting a web-shaped starting material into packaging bags can be implemented in a particularly space-saving manner. In addition, by providing a deflection, the risk of the web-shaped starting material being torn off in the advance of the forming device can be significantly reduced.

According to an embodiment of a system according to the second aspect, the deflection comprises at least one retaining strap, which can be brought into contact with the web-shaped starting material on the radial outside with respect to the deflection axis or is in contact with it, the retaining strap being at least in a part of the circumferential contact area, in particular in at least a large part of the peripheral contact area, in particular the majority comprising at least 50%, in particular at least 75%, preferably at least 90%, of the peripheral contact area, can be placed on the web-shaped starting material or rests on the web-shaped starting material. In particular, the retaining strap extends in the web width direction over less than half, in particular less than a third, preferably less than 15% of the axial length of the deflection and/or an initial width of the web-shaped starting material. The holding belt is preferably guided by at least two, in particular three, belt rollers, with the holding belt resting on the deflection, in particular the deflection roller, between a first and a second belt roller. It may be expedient for the tether to be conveyed with a tether drive, in particular with a belt speed corresponding to the peripheral speed of the deflection roller. Optionally, the retaining strap can be designed to be free-running. For this purpose, at least one of the belt rollers can be equipped with a freewheel. In particular, in a belt deflection roller, the rotatable bearing and the freewheel are aligned coaxially with one another. The free-running retaining strap has proven to be very helpful as an installation aid, particularly when reinstalling the web-shaped starting material into the system web-shaped starting material is held against backflow. The use of a retaining strap has proven to be particularly useful in combination with large peripheral contact areas.

According to a second aspect of the invention, which can be combined with the first and/or the remaining aspects, a system for converting a web-shaped starting material into packaging bags is provided, which system comprises a feed device, a forming device and a deflection. According to the second aspect of the invention, it is provided that the deflection is arranged above the forming device in relation to a vertical direction and/or that the deflection specifies at least one turn of the web-shaped starting material between the feed device and the forming device. The second aspect of the invention can be combined with the first and the others. Alternatively, particularly in combination with the first and/or the remaining aspects of the invention, the deflection can be arranged in front of the forming device in the conveying direction. In general, the forming device, optionally together with the deflection provided upstream of the forming device and/or together with a feed device provided downstream of the forming device, defines a conveying path for the material web, along which the material web moves downstream in accordance with operation. The vertical direction may be determined as the direction which extends orthogonally relative to a contact surface, such as a hall floor, on which the system is to be arranged or arranged. The vertical direction preferably corresponds to the direction in which gravity acts. It may be preferred that the conveying direction at the exit of the forming corresponds to the conveying direction at the entrance and/or through the forming device. A turn can be described by a U-shaped conveying path of the web-shaped starting material, whereby the U can be oriented upright or upside down, for example. An S-shaped conveying path of the web-shaped starting material comprises two turns, whereby the web-shaped starting material can be guided according to a lying or a standing S. It is conceivable that the web-shaped starting material is guided along a W- or M-shaped conveyor path with three turns. By means of one or more turns, tensions can be provided in the system for guiding the web-shaped starting material and for preparing a pocket-shaped forming. In an embodiment of the deflection and the forming device, each with at least one partially cylindrical or cylindrical, in particular rotating, means determining the conveying path of the web-shaped starting material or the material web, it may be preferred that the cylinder and/or rotation axes of these means are aligned in space parallel to one another. By arranging a deflection, the system can be used to convert a web-shaped starting material into packaging bags in a particularly space-saving manner will be realized. In addition, by providing a deflection, the risk of the web-shaped starting material being torn off can be significantly reduced.

According to a preferred embodiment of the system, the deflection is arranged in relation to a vertical direction above the feed device and/or possibly above a material web supply. It may be preferred that the conveying direction at the entrance to the forming corresponds to the conveying direction at the exit and/or through the forming device. In an embodiment of the deflection and the feed device each with at least one partially cylindrical or cylindrical, in particular rotating, means determining the conveying path of the web-shaped starting material, it may be preferred that the cylinder and/or rotation axes of these means are aligned in space parallel to one another. By arranging the deflection above the feed device, further space-saving potential can be realized. By using an upper deflection, instead of a material web supply arranged at the top in the prior art, the handling of the system, both in terms of maintenance and loading with new starting material, is much easier than with conventional systems. Advantageously, the material supply and the feed device can be arranged directly one above the other in the vertical direction, or they can be arranged slightly offset from one another and essentially one above the other in the vertical direction. So that the handling of the material supply can be accomplished as easily as possible, particularly when replacing and refilling, the feed device is preferably arranged above the material supply. The material supply and the feed device are also arranged adjacent to the forming device, in particular directly next to one another, so that an extremely compact design of the system for converting a web-shaped starting material into packaging bags can be realized. By arranging the deflection above the feed device and/or the forming device, a particularly compact design can be achieved. In this way, the deflection can result in a particularly compact design of the system. Furthermore, the deflection can preferably be designed as a roller. The web-shaped starting material runs over the deflection, in particular the deflection roller. If the deflection is designed as, in particular, an ideal cylindrical roller, the material web leaves the deflection in a flat shape in accordance with the contour of the deflection and makes the web-shaped starting material available to the forming device for further processing in the downstream forming device.

According to one embodiment of the system, the web-shaped starting material is guided in the forming device with a conveying direction that is directed downwards in relation to a vertical direction. It may be preferred that the forming device, optionally together with the deflection provided upstream of the forming device and/or together with a deflection provided downstream of the forming device Feeding device defines a conveying path for the material web, which is oriented downward in the vertical direction in the course of the conveying path through the forming device and / or at the exit of the forming device. Preferably, the web-shaped starting material extends with its web width direction at the deflection, in particular flatly, along a contact line or contact surface of the deflection with the web-shaped starting material. While it is common practice in the prior art to align the conveying direction of the material web in forming devices horizontally and to feed the sheet-shaped starting material to the forming device in a horizontal direction, further space savings can be achieved through the design according to the invention.

According to a third aspect of the invention, which can be combined with the first aspect and the remaining aspects, a system for converting a web-shaped starting material into packaging bags is provided, which system comprises a feed device, a forming device and a deflection. The deflection, for example a deflection roller, is designed and set up to guide the web-shaped starting material from the feed device along the deflection to the forming device.

According to the third aspect of the invention, the forming device comprises at least two folding means arranged one behind the other in the conveying direction. The folding means can be implemented, for example, by slide rail sections, rigid sliding disks, thorns, folding rollers or the like. The folding means preferably implement means of the forming device that determine the conveying path of the material web. The forming device and/or a loading device define a guide surface for the pocket base. Preferably, the guide surface is designed to guide and/or support the V- or U-shaped formed material web in the area of the pocket base and/or between opposite wings of the material web. It may be preferred that the guide surface implements, at least in sections, a means determining the conveying path of the web-shaped starting material or the material web, which can be or is brought into contact with the starting material or the material web. The guide surface can be designed in particular as a stop for objects inserted or usable in a loading device, such as shipping items. A deflection axis defined by the deflection, in particular the deflection roller, is aligned transversely, in particular perpendicular to the conveying direction along the guide surface and/or arranged offset from the guide surface.

According to the third aspect of the invention it is provided that at least a first folding means, such as a first folding roller, is arranged between the guide surface and the deflection axis. Preferably, the second folding means, for example the outer circumference of a second folding roller, corresponds to the position of the guide surface. Particularly preferably, it can be provided that a distance between the first folding means is perpendicular to the guide surface and the guide surface at least one eighth, in particular at least a quarter, preferably at least a third and/or not more than three quarters, in particular not more than two thirds, preferably not more than half, of the distance between the deflection axis and the guide surface that is orthogonal with respect to the guide surface measures. It should be clear that the second folding means is arranged further away from the deflection in the conveying direction than the first folding means. In an embodiment of a forming device with several folding rollers or the like, it may be preferred that the cylinder and/or rotation axes of these folding means are aligned in space parallel to one another. Additionally or alternatively, it can be provided that the cylinder and/or rotation axes of the folding means, in particular folding rollers, are aligned in space parallel to the deflection axis. It has surprisingly been shown that thanks to the use of several folding means in the forming device, a reliable, reproducible, rapid forming of a web-shaped starting material web into a formed material web with a V- or U-shaped cross section along a particularly short extent in the longitudinal direction of the web corresponding to the conveying direction with little Risk of demolition is realizable.

According to an embodiment of the system according to the third aspect of the invention, the guide surface can be defined by at least one counter bearing, in particular at least one counter bearing roller or a sliding surface, corresponding to at least one folding means, such as folding rollers, in particular the second folding roller. With the aid of at least one counter-bearing roller, in particular several counter-bearing rollers, and/or at least one sliding surface, in particular several sliding surfaces, in which case in particular counter-bearing rollers and sliding surfaces can be provided alternately in the conveying direction, a reliable counter-bearing can be provided on the guide surface for supporting the base of the pocket and, if necessary, in the receiving cavity or used items, such as shipping items. In the case of a counter bearing that has counter bearing rollers and sliding surfaces, it can be provided that when the counter bearing rollers and sliding surfaces are arranged one behind the other in the conveying direction, the at least one counter bearing roller is slightly raised relative to the at least one adjacent sliding surface, in particular the one on the counter bearing roller, in particular several immediately adjacent ones Counter bearing rollers, tangentially adjacent plane is at a distance from the sliding surface. The distance can be dimensioned in such a way that, during conveyance, the base of the pocket rests against the counter-bearing roller or rolls and is conveyed with little friction, with at least one additional sliding surface being available for support depending on the loading condition. The distance mentioned is in a range from 1mm to 3mm and is typically 1.5mm.

In a further embodiment of the system according to the third aspect of the invention, a third folding means, in particular a third folding roller, is arranged between the guide surface and the first folding means, such as the first folding roller. Optionally, a third as well If necessary, further folding means can be arranged in the conveying direction and/or in the direction orthogonal to the guide surface between the first and the second folding means.

According to an embodiment of the system according to the third aspect of the invention, the forming device comprises at least one folding roller, preferably two or three folding rollers. The at least one folding roller, in particular the two folding rollers or the three folding rollers, comprise (each) two roller disks spaced apart in the roller axial direction. A spacer can be provided between the rolling disks. The V or U shape of the formed material web can be predetermined by the distance between the roller disks of the at least one folding roller in the roller axial direction. In particular, a transverse width of the pocket base can be determined by the distance between the roller disks of a folding roller in the roller axial direction.

The folding rollers are preferably designed to be interchangeable and/or adjustable. It is therefore possible to adapt the system simply and quickly to a different material or to a different material of the web-shaped starting material. It is also possible to easily and quickly adapt to a desired V or U shape of the material web to be formed. A material web formed with a V-shaped cross section has one, preferably exactly one, groove introduced by one, in particular exactly one, folding roller, along which the one disc-shaped rolling disk preferably runs. Regardless of the number of grooves, it can be advantageous if rolling disks are used, which run along the groove and mechanically process the groove during the forming process in such a way that the forming process is facilitated and simplified and takes place with less effort.

According to a further development of the system, an axis distance between the deflection axis and the roller axis of the first folding roller, preferably in the direction parallel to the guide surface, is at least 10 mm, in particular at least 120 mm, and/or not more than 300 mm, in particular not more than 220 mm , preferably about 168 mm. The deflection means can optionally have a smaller outside diameter than the first folding roller. It has been shown that with such an axial distance along a short distance in the conveying direction, a significant transformation of a web-shaped starting material into a material web with a V- or U-shaped cross section can be achieved.

In an embodiment of the system according to the third aspect of the invention, an envelope distance measures between a material web contact area of the first folding means, in particular the first folding roller, facing the guide surface, preferably its outer circumference, and a deflector contact area of the deflection means, in particular the deflection roller, facing away from the guide surface , at least 10 mm, in particular at least 40 mm, and/or not more than 300 mm, in particular not more than 80 mm, preferably about 70 mm. It may be preferred that the envelope distance is determined in the direction perpendicular to the guide surface.

In one embodiment of the system, a forming length from the deflection, in particular the deflection roller, to the second folding means, in particular the roller axis of the second folding roller, preferably up to a loading opening, is not greater than 120 cm. In particular, the forming length is not greater than 100 cm, preferably not greater than 80 cm. Alternatively or additionally, it is provided that the forming length is not greater than twice the initial width of the web-shaped starting material web, in particular not greater than 1.5 times the initial width.

According to one embodiment of the system for forming a web-shaped starting material into packaging bags, which can be implemented, for example, according to the first, second or third aspect, the forming device comprises at least a few guide means, such as guide rods, which are opposite in the web width direction, for guiding the web-shaped starting material along an in path tapering in the conveying direction. The pair of guide means can, for example, be designed to reshape an originally flat web-shaped starting material by at least one wing, which extends along a first (for example right in the direction of conveyance) or second (for example on the left in the direction of conveyance) longitudinal edge onto the other wing too bent or folded. The pair of guide means can be arranged as a means determining the conveying path of the web-shaped starting material or the material web, on the right or left with respect to the conveying direction, and optionally upstream and/or downstream relative to the folding means. Preferably, the folding means, together with the pair of guide means, causes a deformation of an originally flat web-shaped extension. Other guide means can have a plurality of individual rollers, which reduces friction in the conveying direction.

According to a fourth aspect of the invention, which can be combined with the first and/or the remaining aspects, a system for converting a web-shaped starting material into packaging bags is provided, which comprises a feed device, a forming device and a deflection. The deflection, for example a deflection roller, is designed and set up to guide the web-shaped starting material from the feed device along the deflection to the forming device. According to the second aspect of the invention, the system has a tensioning means, such as a support roller. The clamping device defines a clamping center axis that is aligned in the web width direction. The clamping means can be brought into contact with the web-shaped starting material or is in contact with the web-shaped starting material in order to cause the web-shaped starting material to move transversely to the conveying direction and transversely to the To push the web width direction, in particular under the influence of force, in particular the web-shaped starting material is subjected to a predetermined tension or tension force so that it is always tensioned between the feed device and the conveyor device and does not sag. The clamping means is arranged in the conveying direction between the feed device and the forming device. In particular, the tensioning means is arranged between the feed device and the deflector, in particular the deflection roller. Preferably, the clamping means is designed to carry out a compensating movement in the vertical direction upwards and/or downwards.

According to a preferred embodiment of the fourth aspect of the invention, the tensioning means is prestressed. The pretension forces the clamping device to make a compensating movement. Preferably, the pretensioning force is directed against a force acting on the tensioning means through the web-shaped starting material. In particular, the tensioning means is pretensioned by a mechanical spring. Alternatively or additionally, the clamping means has a clamping mass. The clamping mass can force the clamping device vertically downwards in the direction of gravity. The clamping means is preferably free of compressed air. By avoiding a compressed air actuator, for example a pneumatic piston, the energy space requirement of the system can be minimized.

In an embodiment of the fourth aspect of the invention, the clamping means is movably mounted on the retraction device. The clamping device is generally mounted so that it can move transversely to the conveying direction. In particular, the clamping means can be mounted movably in the vertical direction. Preferably, the clamping means is movably mounted transversely to the conveying direction with a vertical movement component, for example along an incline or an arc. The retraction device can, for example, have a linear guide in which the clamping means is held. Alternatively, the retraction device can have one or a few pivotable ones, which pivotably hold the clamping means on the retraction device. Alternatively, the clamping device is pivotally mounted on the frame of the system.

A further embodiment of the fourth aspect of the invention provides that the clamping means comprises at least one position sensor, such as a contactor. The feed device is preferably designed and set up to apply a feed speed to the web-shaped starting material depending on the position sensor, the feed device switching a drive active or inactive depending on a threshold value detection, such as a detection of an initial position. When the drive is in an active state, it drives the feed device to pull in the web-shaped starting material from the material web supply. When the drive is inactive, it does not actuate the retraction device. In this way it can be ensured that sufficient starting material is always provided for continuous and rapid operation of the system. At the same time Material jams and material breaks are avoided. As an alternative to the two-point control method mentioned, other control methods are also conceivable. For example, in addition to the (first) active and inactive states, a three-point controller can also switch a (second active) operating state of the drive with a conveying speed that is faster or slower than the conveying speed of the (first) active state. Alternatively or additionally, the clamping means can be designed as a continuous controller, for example with a displacement sensor or angle sensor for continuously detecting an actual position of the clamping means.

Alternatively or additionally, an embodiment of the system includes a force measuring sensor, in particular for measuring an absolute force acting on it. One component of the detected force relates to the tension force of the web-shaped starting material that is under pretension. The force measuring sensor can be arranged on a bearing and/or holder of the deflection and/or the retraction device or at another suitable location in the system. The force measuring sensor and the drive and/or retraction device are part of a drive control circuit. The drive control circuit is preferably designed and set up to always keep the pretension of the web-shaped starting material at a predefined level, in particular independently of the operation of the conveyor device. The drive control circuit is preferably designed and set up to set a smooth start-up of the drive of the conveyor device when a conveying movement starts. In particular, the drive control circuit is designed and set up to gradually increase the conveying speed for the web material. Alternatively or additionally, the drive control circuit is designed and set up to gently and gradually reduce the conveying speed to a standstill during a switch-off process. Such a design of the system with a drive control circuit can be designed without a clamping device.

According to a fifth aspect and/or sixth aspect of the invention, which can be combined with the remaining aspects, a system for converting a web-shaped starting material into packaging bags is provided, which system comprises a feed device, a forming device and a deflection. The deflection, for example a deflection roller, is designed and set up to guide the web-shaped starting material from the feed device along the deflection to the forming device.

According to the fifth or sixth aspect of the invention, the feed device comprises at least one groove element for introducing at least one longitudinal cracks, in particular at least one longitudinal central groove, preferably two or three longitudinal central grooves, into the web-shaped starting material. Preferably, the at least one creasing element is matched to a folding means, in particular at least one, preferably first, folding roller. It can be useful System may be equipped with at least one creasing element, which is designed to introduce one or more grooves in the longitudinal direction of the web into the web-shaped starting material, preferably comprising or consisting of paper or cardboard, in order to carry out the forming process of the web-shaped starting material along the longitudinal grooves by the folding means to improve. The at least one longitudinal groove is preferably introduced in accordance with DE 10 2020 114211 Al.

According to the fifth aspect of the invention, the at least one creasing element comprises a, preferably Teflon-coated, standing knife or at least one rotatably mounted creasing disk. With such a creasing element, grooves can be reliably introduced into the web-shaped starting material with a low risk of tearing.

According to the sixth aspect of the invention, the at least one groove element is spring-loaded and/or mounted without compressed air. By pre-tensioning the groove element, preferably pre-tensioning by means of at least one mechanical spring and/or without a pneumatic actuator, the required forming force can be optimally adjusted in order to ensure a quick and reliable forming effect by the system.

According to one embodiment of a spring-loaded and/or compressed air-free groove element, this presses at least one groove element against a groove counter bearing, such as a counter bearing roller. The grooved counter bearing is preferably implemented separately from a driven and/or driven feed roller of the feed device.

An embodiment of the system for converting a web-shaped starting material into packaging bags according to at least one of aspects one to six further comprises a conveyor device for conveying the web-shaped starting material formed in the forming device, the conveying device having a pair of mutually cooperating conveyor rollers for gripping at least one longitudinal edge of the Comprises material web with a V- or U-shaped cross section. It may be preferred that the conveyor rollers cooperating in pairs have an ideally cylindrical and/or smooth outer peripheral surface.

In a further development of the system with a conveyor device, it is provided that the conveyor rollers comprise a first conveyor roller which has at least one convex circumferential embossing projection and a second conveyor roller with at least one embossing recess which is complementary to the embossing projection.

According to an alternative or additional development of the system with a conveyor device, the conveyor rollers implement longitudinal sealing. The conveyor rollers are designed and set up to press two opposite wings of the material web with a V- or U-shaped cross section against each other with a sealing pressure of at least 0.5 bar, in particular at least one bar, preferably at least 1.5 bar, in order to achieve a To form the longitudinal strips delimiting the packaging bag. The level of sealing pressure can be adjusted to the adhesive used. A sealing pressure of i bar corresponds to a joining force of 10 newtons per square centimeter acting on the packaging bag.

The conveyor rollers are optionally designed to be friction-locked on the outer surface in order to be able to convey the material web reliably. For this purpose, the outer surface of the jacket can be profiled. A profiling can be designed in the manner of a corrugation or a knurl. Alternatively, the outer jacket surface can be smooth and/or designed as a rubber coating. The conveyor rollers themselves preferably rotate in opposite directions in pairs, with the two opposite wings of the material web being guided between them and the sealing taking place. Furthermore, the conveyor rollers pull the web-shaped starting material through the upstream forming device, with the drive of the conveyor rollers optionally driving the forming process in functional union. It can be provided that during and/or as a result of the conveying of the web-shaped starting material through the rollers of the conveying device, the feed device is activated in response, in particular in such a way that material is fed in from the material supply and/or that the tension of the web-shaped starting material is always guaranteed .

It may be preferred that the conveyor rollers are provided with only one drive. Both conveyor rollers can be coupled to one another in terms of drive technology via a gearbox. Alternatively, only one of the two conveyor rollers is driven, while the other runs loosely as a support and joining roller. In a further variant, the driven conveyor roller can be designed as a frictional conveyor roller, in particular have the profiling and/or a rubber coating on its outer jacket surface and convey the material web via the outer jacket surface.

Another embodiment of the system for converting a web-shaped starting material into packaging bags according to at least one of aspects one to six, which is combinable with the previous one, further comprises a loading device. The loading device has a loading opening through which shipping items or shipping goods can be inserted into the receiving cavity of the formed material web.

According to a further development of a system with a loading device, it is provided that the loading device comprises two guides for opposite wings, in particular longitudinal edges, of the material web with a V- or U-shaped cross section, which are adjacent to the loading opening and are opposite transversely to the conveying direction. The guides can be implemented, for example, by guide surfaces, guide rollers and/or guide rollers. The Guides are arranged upstream in the conveying direction and/or in the area of the loading opening, in particular at the level of the loading opening.

In a preferred development of the system with a loading device, the at least one pair of guide rollers is connected, in particular frictionally, to a drive, in particular a conveyor drive of the conveyor device.

According to another embodiment, the system for converting a sheet-shaped starting material into packaging bags according to at least one of aspects one to six, which can be combined with the previous one, further comprises at least one sealing device for sealing at least one transverse strip and/or a longitudinal strip of the converted sheet-shaped starting material and/or or a separating device for separating a packaging bag from the raw material web along a transverse strip.

Preferred embodiments are given in the subclaims.

Further properties, features and advantages of the invention will become clear below by describing preferred embodiments of the invention with reference to the accompanying exemplary drawings, in which:

Figure la shows a side view of a first embodiment of a system for forming a web-shaped starting material into shipping bags;

Figure ib is a side view of a second embodiment of a system for forming a web-shaped starting material into shipping bags;

Figure 2 is a perspective view of a second embodiment of a system for forming a web-shaped starting material into shipping bags;

Figure 3 is a detailed view of a deflection;

Figure 3a shows a system for forming a web-shaped starting material with another deflection variant;

Figure 3b shows a system for forming a web-shaped starting material with another deflection variant;

Figure 3c shows a system for forming a web-shaped starting material with a further deflection variant;

Figure 4 shows a detailed view of a forming device in the conveying direction;

Figure 5 shows a detailed view of the forming device according to Figure 4 transverse to the conveying direction; Figure 6 is a side view of a third embodiment of a system for forming a web-shaped starting material into shipping bags;

Figure 7 is a perspective view of the system according to Figure 6;

Figure 8 is a side view of a feed device with groove elements;

Figure 9 shows a detailed view of a loading device in the loading direction;

Figure io shows a detailed view of the loading device according to Figure 9 transverse to the conveying direction;

Figure 11 is a sectional view of a loading device in the loading direction;

Figure 12 shows a detailed view of a conveyor device;

Figure 13 is a perspective view of a separating and sealing device;

Figure 14 shows a schematic representation of a loading device with a measuring device;

Figure 15 is a perspective view of a loading device with an optical sensor;

Figure 16 is a perspective view of a loading device with a labeler and a light grid;

Figure 17 is a side view, perspective view of a shipping bag;

Figure 18 is a perspective view of the shipping bag according to Figure 17; and

Figure 19 is a view of the shipping bag according to Figure 17 with a view from the outside of the bag base.

To simplify readability, in the following description of preferred embodiments of the various individually realizable or combinable aspects of the invention, the same or similar reference numerals are used for the same or similar components of different embodiments of systems for converting a web-shaped starting material into packaging bags. The person skilled in the art understands that, although the embodiments of a system described below as examples sometimes embody several aspects of the invention that can be combined with one another, the various aspects can each be implemented individually or in any combination with one another. A system according to the invention for converting a web-shaped starting material that defines a web longitudinal direction and extends between two longitudinal directions opposite in the web width direction, in particular a web-shaped starting material made of paper or cardboard, into packaging bags is generally provided with the reference number 100 or 200. The various versions of systems according to the invention, which are provided with the reference number 100 on the one hand or with the reference number 200 on the other hand, essentially only differ in the position of the various system components relative to one another and the resulting conveying path for the starting material.

The web-shaped starting material 1 is preferably made of cardboard or paper or consists of it. In addition to cardboard or paper, the starting material 1 can include an adhesive or the like for sealing the packaging bags 11 to be formed. An example of a packaging bag 11 that can be produced with the system according to the invention is shown in Figures 17-19.

As shown in Figures la and ib or Figure 2, the web-shaped starting material 1 for the system 100 (or 200) can be provided as a material web supply 2, for example in the form of a supply roll. The material web supply 2 is preferably arranged near the ground, so that even heavy, large material web supplies 2 can be used for lifting without cranes or similar aids. Instead, for example, a mobile support frame 20 can be used for a material web supply 2, as can be seen in FIG. The support frame 20 itself can be mechanically coupled to the system 100, for example plugged in, in order to ensure an optimized alignment of the web-shaped starting material 1 relative to the feed device 110/210. The web-shaped starting material 1 rolled up to form the material web supply 2 has a web width direction B. The extension of the starting material 1 in the web width direction B corresponds to the cylinder height of the roll-shaped material web supply 2. The opposite, circular base surfaces of the roll-shaped or cylindrical material web supply 2 are through the opposite longitudinal edges 6 of the Starting material web 1 formed. To form the roll-shaped material web supply 2, the starting material web 1 is wound in the direction of its longitudinal direction L.

The system 100 and possibly the support frame 20 stand on a surface, such as a hall floor, which extends essentially horizontally. A vertical direction V extends orthogonally on this surface and/or in the direction of gravity.

To process the web-shaped starting material 1 into a plurality of packaging bags 11 through the system 100, the material web 1 is guided with its longitudinal direction L in accordance with a conveying direction F through the system 100, and is pulled through it and thereby unwound from the roll-shaped material web supply 2. Within the various Components of the system 100, the local conveying direction F along which the web-shaped material 1 is moved can be variable with respect to the vertical direction V as well as with respect to a horizontal direction.

The conveying path of the material web i through the system 100 according to the embodiments shown as examples in FIGS. la and ib or FIG. 2, as well as through the system 200 according to the embodiment shown as examples in FIGS the system components) from a material web supply 2 through a feed device 110/210, along a clamping device, such as a support roller 115/215, to a deflection, such as a deflection roller 120/220, and then to a forming device 130/230 and a subsequent loading device 150 /250 and further with a conveyor device 170/270 and a sealing device 180/280 and finally a separating device 190/290.

In the embodiments shown here as examples, the web-shaped starting material 1 extends essentially flatly in the web width direction B from the material web supply 2 to the deflection roller 120/220, in particular in a horizontal direction. The raw material web undergoes a turn at the deflection roller 120/220. Starting from the deflection, the web-shaped starting material 1 is formed in the forming device 130/230 into a material web with a V- or U-shaped cross section and a receiving cavity 9 extending in the longitudinal direction L of the web. The receiving cavity 9 is delimited on the one hand by a pocket base 7 and on both sides thereof by wings 8 which protrude transversely to the conveying direction F and/or the longitudinal direction L of the web and which extend in the longitudinal direction L of the web. The material web 5 with a V- or U-shaped cross section is transferred from the forming device 130/230 to the feeding device 150/250. The loading device 150/250 has a loading opening 151/251 opposite the pocket base 7, through which shipping items 21 can be inserted into the receiving cavity 9. By means of the conveying device 170/270, the material web 5, which is covered with at least one shipping item 21 and is V- or U-shaped in cross section, is pulled further out of the feeding device 150/250 in the conveying direction F. A sealing device 180/280 introduces transverse strips 15 and longitudinal strips 16 into the V- or U-shaped material web 5 in order to form packaging bags 11. The transverse strip 15 on the one hand and the longitudinal strip 16 on the other hand can be introduced by different components and/or mechanisms of the sealing device 180/280. The separating device 190/290 separates packaging bags 11 occupied by at least one shipping item 21 from the material web 1. The sealing device 180/280 can be formed at least partially in functional union with the conveying device 170/270 and/or the separating device 190/290. To pull the material web 5 in the conveying direction F, the conveying device 170/270 has conveyor rollers 171 and 172/271 and 272, which are arranged opposite one another and rotate in opposite directions to one another and with the conveyor rollers 171 and 172/271 and 272 still facing each other on the input side spaced wings 8 of the material web with a V- or U-shaped cross section are introduced. During the conveying process, the wings 8 are moved further towards each other. The wings 8 can be between the conveyor rollers

171 and 172 / 271 and 272 are pressed against each other during conveying, on the one hand sealing the edge area of the wings 8 between the conveyor rollers 171 and

172 / 271 and 272 takes place to form the longitudinal strips 16. When the longitudinal strip 16 is introduced, the receiving cavity 9 can immediately be closed transversely to the longitudinal direction L of the web. The at least one shipping item 21 is then enclosed on three sides of the material web, namely on the side of the pocket base 7, on the side of the seal created by the conveyor rollers 171 and 172 / 271 and 272 in the form of the longitudinal strips 16 in the longitudinal direction L of the web and on the side of the front end region of the material web the sealing device 180/280.

In an alternative embodiment, sealing rollers (not shown) are provided as a pair of rollers, which are arranged opposite one another and are connected upstream of the conveyor rollers 171 and 172/271 and 272 in the conveying direction F. Each of the sealing rollers is rotatably mounted, with at least one of the bearings being arranged to be movable by means of force and movable relative to the other sealing roller. The application of force can be provided by a spring force, so that the sealing rollers or the conveyor rollers 171 and 172/271 and 272 are moved towards one another and the edge region of the wings 8 is sealed. Furthermore, the spring force is designed to be adjustable, which is made possible by means of an adjusting thread. As part of this mobility, flexibility is also created, with the center distances of the respective deposits and thus the center distances of the respective conveyor rollers 171 and 172/271 and 272 being able to adapt to the thickness of the web-shaped starting material 1, with a constant or an almost constant The pressure force of the rollers 171 and 172/271 and 272 is ensured by the almost constant spring force regardless of the thickness of the web-shaped starting material 1. The amount of flexibility, which is directed against the spring force, can be in a range of 1.5 times to 5 times the thickness of the web-shaped starting material 1. Typical web-shaped starting materials 1 have a thickness in a range from 0.5 millimeters to 5 millimeters, but preferably about 1.5 millimeters. Mobility can be achieved in a variety of ways. In principle, linearly movable slide guides but also pivoting bearing blocks can be considered. These may have a travel limitation be equipped so that a small air gap is created between the rollers when the device is free of material.

According to a first embodiment, the sealing device 180/280 is connected upstream of the separating device 190/290 in the conveying direction F. In terms of process technology, the material web is first closed on the still open side by the sealing device 180/280, so that the at least one shipping item 21 is now completely encased and enclosed by the material of the material web. The closing and sealing is advantageously carried out by means of and between two jaws, which extend over the entire width of the packaging bag 11 and thus transversely to the longitudinal direction L of the web. At least one of the jaws can be slidably driven by a drive, such that the at least one motor-moveable jaw exerts a force on the material web from the outside at a height of 1 bar or 10 Newtons per square centimeter, whereby the sealing takes place and the transverse strip 15 is formed. The packaging bag 11 is then formed and surrounds the shipping item.

Individual packaging bags 11 can then be separated from the material web in a further process step using the separating device 190/290 and thus separated. Alternatively, the separation and isolation of the packaging bag 11 can also be carried out in the procedural order as described at the beginning if it is ensured that in the final process step the sealing takes place as, for example, as described at the beginning. For this purpose, it can be useful if the at least one displaceably drivable jaw fixes the separated shipping bag 11 by means of a counter jaw and the sealing or creation of the transverse strip 15 takes place directly in conjunction with the separation and isolation from the material web. However, what is and remains essential in these embodiments and process sequences is that the sealing device 180/280 is at least partially in functional union with the separating device 190/290.

Figure la shows a side view of a first embodiment of the system 100 for converting the web-shaped starting material 1, which is in particular made of paper or cardboard, into packaging bags 11. A feed device 110 pulls the web-shaped starting material 1 from the material web supply 2. The feed device 110 is arranged in the vertical direction V above the material web supply 2.

Downstream of the feed device 110, the web-shaped starting material 1, which may have been formed into a grooved material web 3 in the feed device 110 by means of a grooved element 105, is guided along a support roller 115. The support roller 115 can be referred to as a loose roller or dancer. The support roller 115 is on the system 100, in the embodiment according to Figure la on the feed device 110, transversely Conveying direction F movably mounted. The support roller 115 is held movable relative to the retraction device 110 and/or a deflection 120 in order to carry out an evasive movement a. As shown in Figure la, the evasive movement a can be aligned in the vertical direction V. The support roller preferably implements a tensioning element. It holds the web-shaped starting material 1 or, if applicable, the grooved material web between the feed device 110 and the conveyor device 170 with a predetermined dimension.

The support roller 115 can, for example, be biased downwards in the vertical direction V by a mass, in particular its own weight. Alternatively or additionally, the support roller 115 can be spring-loaded to carry out an evasive movement a. The support roller 115 is preferably designed to be free of a pneumatic actuator. Contrary to the pretension of the support roller 215, the tension force of the web-shaped starting material 1 acts as a result of a tensile force acting on the starting material web 1 through a conveyor device 170 in the conveying direction F. With the help of the support roller, discontinuities between a conveying speed when pulling the web-shaped starting material web 1 from the material web supply 2 on the one hand and a conveying speed on the conveying device 170 and/or the separating device 190 on the other hand can be compensated for. By displacing the support roller 115 in the direction of the compensating movement a, the conveying path from the feed device 110 to the loading device 150 is extended, so that a buffer amount of web-shaped starting material 1 can be kept along the conveying path. From the feed device 110, the conveying path of the raw material web runs in an S-shape with two turns, first a slight one on the support roller 115 and then a strong one on the deflection roller 120, to the forming device 130.

A deflection, which in the embodiment shown here as an example is implemented as a deflection roller 120, is arranged in the advance of the forming device 130. The web-shaped starting material 1 is supported along the deflection axis U on the deflection roller 120 before it is conveyed through the forming device 130. The deflection roller 120 or deflection roller extends in the direction of the deflection axis U over more than the initial width b of the starting material web 1.

Figure 3 shows a deflection with a deflection roller 120 and an optional holding strap 125. The web-shaped starting material 1 is guided along a peripheral contact area 121. The peripheral contact area 121 extends in the exemplary embodiment shown in Figure 3 corresponding to Figures la and ib over more than 90 ° around the outer circumference of the deflection roller 120. The retaining strap 125 is in contact with part of the peripheral contact area 121. The holding strap 125 can prevent the web-shaped starting material 1 from lifting off the deflection roller 120, which could otherwise lead to material jams or material tears. The holding strap 125 can serve as a threading aid, when a new material web is introduced into the machine. If the holding strap is applied to the deflection with a slight tension, this may be enough to hold the web of material to be rethreaded between the deflection 120 and the belt 125. This can prevent the starting material from being pulled back again by gravity or by the dancer. The, in particular the driven, belt deflection rollers 126 preferably have a freewheel which does not hinder the conveying movement of the starting material 1 during its movement in the conveying direction F. It may be preferred that a freewheel is only integrated in the driven belt deflection roller and the remaining belt deflection rollers are freely rotatable.

Preferably one of the belt deflection rollers 126 is driven. The belt roller drive serves as a setup aid. With the help of the belt roller drive, the belt 125 and thus the material web can be gradually conveyed at a slower speed by the person setting up at the push of a button. This allows the setter to concentrate completely on threading the new starting material through the forming 130 and the conveying device 170 to the cutting device 190. Once the machine is set up, the freewheel operates and the belt runs loosely - but remains in contact with the web-shaped starting material 1 under pretension.

3, the retaining strap 125 is guided along three belt deflection rollers 126, 127, of which, for example, a belt deflection roller 126 can be driven and a belt deflection roller 127 can be movably mounted to maintain belt tension. The driven belt roller 126 can provide a driving force for conveying the raw material web 1. Optionally, the belt roller 126 is provided with a freewheel, which is arranged in terms of drive technology between the drive motor and the retaining belt 125 itself. This makes it easier to restart the system 100,200 or when a new material web 5 is moved into the system 100,200. A second belt deflection roller 128 is arranged horizontally next to the upstream, driven belt deflection roller 126. The deflection roller 120 is arranged in the middle between them, slightly offset downwards in the vertical direction V with respect to these belt deflection rollers 126, 128. The downstream belt deflection roller 127 is placed vertically below the roller 128 arranged above it in the vertical direction V. The deflection axis U of the deflection roller 120 is located in the vertical direction V between the two belt deflection rollers 127, 128. In the direction of the deflection axis U, the holding belt 125 extends significantly shorter than the deflection roller 120. A curved guide plate 123 is between the downstream belt deflection roller 127 and the deflection roller arranged. The small arcuate guide plate 123 guides the material web in the direction of the forming roller 131. The deflection realized here as a deflection roller 120 is arranged vertically above the forming device 130 in the vertical direction V. The deflection roller 120 is also arranged above the feed device 110, which is located above the material web supply 2. The deflection forms the top component of the system 100 in the embodiment according to Figure la, ib or Figure 2. The arrangement of the deflection between the feed device 110 and the forming device 130 allows a compact design in the horizontal direction, so that the system 100 can be set up in a logistics hall with a small footprint is.

3a to 3c show systems 100 which are designed as described above with respect to FIGS. 1 to 3 and essentially only differ in the shape and guidance of the respective retaining strap 125.

In the embodiment shown in Figure 3a, the retaining strap 125 is guided along three belt deflection rollers 126, 127, 128. A difference to the variant previously described with reference to FIG. 3 can be seen in the arrangement of the belt deflection roller 127 downstream of the conveying stream. The variant does not have a baffle. Instead, the downstream belt deflection roller 127 is arranged relative to the second belt deflection roller 128 transversely to the conveying direction F closer to the conveying path F of the material web.

3b, a guide device 200 with an upper guide element 220 and a lower guide element 210 extends to an entrance area 139 of the forming device 130. The guide elements 210, 220 are formed as rigid guide plates 211, 221 and end in the immediate vicinity of the Outer circumference of the deflection roller 120.

The guide elements 211, 221 delimit a channel 201 through which the material web is conveyed. The channel height is less than 5 cm, in particular less than 2.5 cm, preferably less than 1 cm and/or at least 5 mm. In one embodiment in Figure ib and Figure 3b, the distance between the guide elements 211, 221 from one another and thus the channel height of the channel 201 from the feed device 110 in the conveying direction F to the deflection roller 120 decreases continuously. Thus, the lower baffle 211 and the upper baffle 221 have different slopes with respect to the horizontal direction. The gradient of the upper baffle 221 is lower than that of the lower baffle 211. This means there is enough space for the dancer 115. In another embodiment, which is not shown in more detail, the guide elements 211, 221 are aligned plane-parallel to one another, spaced apart by the channel height. In this embodiment, the lower baffle 211 and the upper baffle 221 thus have the same slope with respect to the horizontal direction.

In the embodiment shown in Figure 3c, the retaining strap 125 is guided along four belt deflection rollers 126, 127, 128, 129. The belt 125 receives and guides the material web very early on, in the area of the belt deflection roller 126 operated by the belt - '2^ - them to the deflection 120. The material web is guided along the peripheral surface of the deflection roller 120 by the belt 125.

In the area from the exit of the feed device to the deflection roller 120, a guide plate extends below the path of the material web. A channel-like guide for the material web is defined between the belt 125 and the guide plate, which increasingly tapers. In the area of the vertically movable support roller 115, a wide free space is provided between the guide plate and the belt 125 running from the driven roller 126 deflection roller 120, in which the dancer 115 can be moved. This is also an advantage if a leading material web section is deformed, for example bent, and has to be “captured” by the belt 125.

Three of the four belt deflection rollers 127, 128, 129 are arranged as belt deflection rollers like those previously described with reference to FIG. 3a, with none of these rollers being driven in the embodiment according to FIG. 3c. The alternative belt guide has two belt deflection rollers 128 and 129 in the upper area, which are arranged horizontally offset from one another on the opposite sides of the deflection roller 120. According to an alternative, not shown, instead of the two horizontally offset belt deflection rollers 128, 129, only a single belt deflection roller with a sufficiently large diameter to bypass the deflection roller 120 could be provided.

A forming device 130 is described in detail below with reference to Figures 4 and 5. Starting from the deflection, the starting material web 1 is conveyed downwards into and through the forming device 130 in the conveying direction F corresponding to the vertical direction V. The longitudinal edges 6 of the material web can essentially remain in the plane determined by the deflection, which extends from the deflection to the conveyor device 170. The central region of the material web is formed by the forming device 130 by folding means, which are thereby realized by folding rollers 131, 132 and 133, into a pocket base 7 of a material web 5 with a V- or U-shaped cross section, which is framed on both sides by wings 8 which extend up to extend towards the longitudinal edges 6.

The forming device 130 comprises a first folding roller 131, the roller axis W of which is aligned in space parallel to the deflection axis U and is arranged offset from the deflection axis U. In the conveying direction F, an axial distance X is provided between the roller axis W of the first folding roller 131 and the deflection axis U. A transverse distance Y extends transversely to the conveying direction F between the deflection axis U and the roller axis W of the first folding roller 131. A second folding roller 132 and optionally a third folding roller 133 arranged between the first folding roller 131 and the second folding roller 132 define the path of the pocket base 7 through the forming device 130. The roller axis W of the second folding roller 132 is in relation to the deflection axis U in the direction of the conveying direction F through the forming device 130 The axial distance X is arranged significantly further offset, preferably by 2 times to 5 times. Transverse to the conveying direction F (in the feeding direction E), the second folding roller 132 is relative to the first folding roller 131, further relative to the deflection axis U, the envelope distance Y, but not more than 100%, but only about 10% - 50%. The roller axes W of the folding rollers 131, 132 and possibly 133 are spatially parallel to one another.

The folding rollers 131, 132 and 133 are formed by a pair of roller disks 135, between which a spacer 134 is arranged. The distance between the roller disks 135 relative to one another in the direction of the roller axis W, defined by the spacer 134, can correspond to the distance between the groove disks 107, 207 of a groove element 105 upstream of the forming device.

The forming device 130 has a guide surface 140, which is realized in sections by counter-bearing rollers 142, 143 assigned to the folding roller 131, 132, 133. The V- or U-shaped material web 5, in particular the pocket base 7, can be guided along the guide surface 140. Preferably, the guide surface 140 extends parallel to the plane spanned by the deflection and the conveyor device. When executing the system 100 according to Figures 1 or 2, the guide surface 140 extends in a substantially vertical plane.

Figures 6 and 7 show various views of another embodiment of a system 200 for forming a web-shaped starting material into packaging bags. In this system 200, too, the deflection roller 220 that implements the deflection is arranged in the vertical direction V in the uppermost area of the system 200. In contrast to the systems 100 described above, the conveying direction F in the forming device 230 as well as at the exit of the feed device 210 is aligned essentially horizontally. From the feed device 210, the conveying path of the starting material web runs S-shaped with a strong lower turn on the support roller 215 and then a lighter upper turn on the deflection roller 120, to the forming device 230. The feed device 210 is described in detail below with reference to Figure 8.

For the arrangement of the guide surface 240 and its arrangement in relation to the folding rollers 231, 232 and 233 as well as the deflection roller 220, what was previously explained with reference to FIGS. 4 and 5 essentially applies. The guide surface 240 extends through both the deflection device 230 and the loading device 250. Several sections of the guide surface 240 and counter bearing rollers 241, 242, 243 and 245 arranged therein form a section area for the outside of the material web 5 in the area of the pocket base 7.

Inside the forming device 230, a pair of opposing guide rods 236 are provided, the transverse distance of which tapers in the conveying direction F. Across the In the conveying direction F, the guide rods 236 are arranged on both sides of the folding rollers 231, 232 and 233. In the conveying direction F, the guide rods 236 extend essentially from the deflection roller 220 to the loading device 250. The outer sides of the wings 8 can be guided along the guide stands 236 to form the V- or U-shaped material web 5. The counter bearing rollers 241, 242 and 243 are arranged in the area of the forming device 230 and can each be assigned to a folding roller 231, 232 and 233. The counter bearing rollers 245 are arranged in the area of the loading device 250 opposite the loading opening 251. The guide surface 240 extends essentially in a horizontal plane in the embodiment of the system 200 shown in FIGS. 6 and 7.

The feeding device 250 is arranged downstream of the forming device 230. The loading device 250 has a loading opening 251 which is completely surrounded by a solid frame 255. The interior 259 of the loading device 250 extends in the loading direction E behind the frame 255. In the conveying direction F, the loading opening 251 has a clear length f, which is the maximum length that can be occupied Shipping item intended. The loading direction E, through which shipping items (not shown) can be inserted through the loading opening 251 of the loading device, extends perpendicular to the conveying direction F and the plane defined by the guide surface 240.

A conveyor device 270 is arranged downstream of the loading device 250, which can grip the longitudinal edges 6 of the material web 5 and convey it in the conveying direction F. Following the conveyor device 270, a sealing and separating device 280/290 is provided for forming and separating packaging bags 11 from the web-shaped starting material 1.

Figure 8 shows a side view of a feed device 210. The feed device 210 differs from the feed device 110 essentially only in the orientation of its conveying direction F at the entrance or exit of the feed device. The feed device 210 comprises a pair of conveyor rollers 211 and 212, between which the web-shaped starting material web (not shown in detail in Figure 8) can be conveyed. The lower conveyor roller 211 is provided with a drive device which drives the conveyor roller 211. The upper conveyor roller 212 rolls on the lower conveyor roller 211 and follows the movement of the lower conveyor roller 211.

The feed device 210 comprises a creasing element 205. In the preferred embodiment shown here, the creasing element 205 is arranged upstream of the pair of conveyor rollers 211, 212. The scoring element 205 comprises two axially offset scoring disks 207, 208. The scoring disks 207, 208 are spring-loaded on an arm 216 by a compression spring 209. It is conceivable that the grooved disks 207, 208 are kept rotationally rigid. The grooved disks 207, 208 are preferably rotatably mounted. The grooved disks 207, 208 roll on the Counter bearing roller 206. The compression spring 209 pushes the grooved disks against the counter-bearing roller or counter-bearing roller 206. The web-shaped starting material (not shown in more detail in FIG. 8) is conveyed by the feed device 210 along the creasing element 205, which longitudinally grooves the web-shaped starting material 1, so that it becomes a grooved web material 3 is formed. Downstream of the feed device 210 in the forming device 230, the folding means cause the web-shaped material 1 to be folded, preferably along the longitudinal grooves introduced by the groove element 205, in order to design the material web 5 with a V- or U-shaped cross section.

Figures 9 and 10 show a loading device 150. With the exception of the orientation of the guide surface 140, the loading device 150 of the system 100 essentially corresponds to the loading device 250 of the system 200. The counter bearing rollers 145 are in the area of the loading device 150 in the loading direction E opposite the loading opening 151 arranged. The counter bearing rollers 145 limit the depth in the loading direction E up to which a shipping item (not shown) can be used. The loading direction E is oriented in the horizontal direction in the embodiment shown in FIGS. 9 and 10.

In the conveying direction F, the loading opening 151 has a clear length f. Transverse to the conveying direction F, the loading opening 151 has a clear width q. The clear length f and the clear width q of the loading opening 151 are defined by a frame 155 which completely surrounds the loading opening 151. The loading opening 151 is delimited transversely to the conveying direction F by opposing guide plates 156. The guide plate 156 has a rounded bend 156 in the area of the loading opening 151, so that shipping items can easily slide along the guide plate 156 into the loading opening 151 and a receiving cavity 9 provided behind it for a V- or U-shaped material web 5 (see FIG. 1). The guide plates 156 implement guide plates 144 behind the frame 155 in the interior 159 of the loading device 150 for guiding the wings 8 in the conveying direction F on their insides defining the receiving cavity 9. Further guide plates 146 can be provided on their outer sides to guide the wings 8 in the conveying direction F.

The clear length f and/or the clear width q can be adjustable. The frame 155 has an adjustable opening dimension. The clear length f or the clear width q limit the maximum dimensions of the insertable shipping item 21. Correlating to the opening dimension, the maximum size of the packaging bag 11 can be derived in accordance with a predetermined price group of a parcel delivery company. The clear length f and/or the clear width q can optionally be adapted to shipping items 21 with different dimensions, in particular the dimensions of the packaging bag 11 being changeable accordingly. Figure 11 shows a sectional view through the loading device 150 through a sectional plane behind the frame 155. The wings 8 or longitudinal edges 6 of the V- or U-shaped material web 5 in the area of the loading device 150 are shown in dashed lines in Figure 11. The guidance of the right wing 8 on the one hand and the left wing 8 on the other hand between the respective guide plates 144 and 146 is clearly visible in the sectional plane. The guide plates 144, 146 form a funnel-like insertion section 153, which serves to safely feed the V- or U-shaped material web 5 from the forming device into the loading device 150.

Downstream of the feed opening, the outer guide plates 146 form a funnel-like transfer section 154 for feeding the longitudinal edges 6 of the material web 5 into the contact area of two mutually rotating conveyor rollers 171, 172. The conveyor rollers 171, 172 implement a conveyor device 170, which pulls the material web 5 through the forming device 130 . Preferably, the conveyor rollers 171, 172 have cooperating cylindrical outer peripheral surfaces. The conveyor rollers 171, 172 can apply high tensile stresses to the material web 5 in order to realize the transformation from a flat starting material web into a formed material web along a particularly short pitfall by the forming device 130. Figure 12 shows an optional embodiment of a pair of conveyor rollers 171, 172, which forms a sealing device 180. A first conveyor roller 171 has a full-circumference annular projection 173, which rolls in a corresponding full-circumference annular groove 174 of the second conveyor roller 172. The sealing device 180 formed by the pair of conveyor rollers provides the material web 5 with a longitudinal strip 16 to form a packaging bag 11. Optionally, a cold seal adhesive can be applied to the material web 5 on the inside of the receiving cavity 9, at least in the area of the longitudinal strips 16 and the transverse strips 15.

Figure 13 shows schematically the sealing and separating device 180/190. The V- or U-shaped material web five is conveyed in the conveying direction F by the conveying device 170 to and through the separating and sealing device 180/190. The sealing device 180 comprises a pair of jaws lying opposite one another transversely to the conveying direction F, which can be pressed against one another to form a transverse strip 15 that seals a packaging bag 11. The separating device 190 comprises at least one, in particular scissor or guillotine-like, cutting edge or alternatively a plurality of cutting-like teeth for separating a packaging bag 11 from the web-shaped starting material 1. At least one jaw of the sealing device 180 can be designed with a cutting edge of the separating device 190, so that during a pressing process the Baking against each other at the same time as the packaging bag eleven is sealed along a transverse strip 15, the packaging bag 11 is separated from the material web 5. Figure 14 shows a schematic representation of a loading device 150 with a measuring device with an optical sensor in the form of a camera 158. Figure 15 shows a perspective view of a loading device 150 with a camera 158, which can serve as an optical sensor of a position sensor and / or a measuring device. The camera 158 should be understood as an exemplary sensor within the scope of the present disclosure.

The camera 158 is carried on the frame of the loading device 150. In order to exclude a collision between shipping items 21 and the camera 158, the camera 158 is arranged upstream of the loading opening 151. The camera 158 is essentially aligned in the direction of the loading opening 151 in accordance with the conveying direction F. The viewing direction of the camera 158 is aligned such that it looks into the receiving cavity of a material web extending in the area of the loading device 150.

It may be preferred that the camera 158 captures an image area which includes a reference area along an inner edge of the loading opening 151, in particular along the guide plate 144, the guide plate 156 or the bend 157. If the camera 158 forms part of a position sensor, the system 100 detects possible coverage of the reference area by an object, such as a user's body part and/or a shipping item, in order to prevent movement of one or more components of the system 100.

In the schematic representation according to FIG. 14, the camera 158 captures a reference plane defined by the sealing device 180. The predetermined distance c between the reference plane and the shipping item 21 that prevails as a result of deformations of the material web 5 can be known in advance or can be determined using the measuring device. The distance c can, for example, correspond to a known taper of the material web in the transfer area 154. The camera 158 is used to record the distance from a rear edge of the shipping item 21 in the conveying direction F to the reference plane. The measuring device can thus determine the piece length SL of the shipping item. The measuring device can also determine other piece dimensions, such as the piece width SB transverse to the conveying direction F and the piece height SH in the feeding direction E.

A measuring cycle can use a computer, for example a PLC, computing unit or similar central machine control unit to transmit a signal to the sensor intended for the length measurement (here: the camera 158). The sensor then detects the shipping item 21. For example, the camera 158 can record an image and divide the image into a large number of image sections, for example a field matrix comprising 5x8 fields. The possibly different distances of each of these image sections from the reference plane are determined and transmitted back to the computer. The computer then determines the maximum value of the different distances. The distance c between the shipping item 21 and the front end of the shipping bag 11 to be formed as well as, if necessary, the Distance c corresponding second distance in the wake of the shipping item 21 can be predetermined for the computer. The computer can then determine a feed rate along which the conveying device 170 conveys the material web from the loading device 150 through the sealing and/or separating device 180 and/or 190, and which determines the overall dimension of the packaging bag 11 to be formed in the longitudinal direction L of the web. If necessary, the overall dimension can be compared by the computer with at least one minimum and/or maximum threshold value in order to possibly identify shipping items 21 with an impermissible length.

Alternatively, a piece size, such as a piece height SH of a shipping item 21, in particular a particularly narrow shipping item 21, can be determined by a preferably optical sensor of the measuring device based on the reflection behavior on an inside (or outside) of the material web 5 in the area of the loading opening 151.

Figure 16 shows a perspective view of the loading device 150. A light grid 149 of a safety sensor extends along the loading opening 151, which is designed to detect when a user places a body part, in particular a hand or an arm, into or through the loading opening 151 Loading opening 151 has been inserted into the interior 159 of the loading device 150. The light grid 149 essentially covers the entire area within the frame 155 spanned by the loading opening 151. If the light curtain 149 detects a collision with a user or an object, the safety sensor causes at least one or more components of the system 100 to be deactivated in order to prevent injury to the user.

The system 100 also includes a marking device 160, which is arranged here as an example inside 159 of the loading device 150. The marking device 160 includes a driver 161 in order to press labels, for example shipping items, against an outside of the material web 5 in the area of the loading device 150. The system 100 may include a scanner or the like to identify the shipping items 21 fed into the loading device 150 and cause the identification device 160 to provide a corresponding label for the packaging bag eleven of the identified shipping item 21.

Figure 17 shows a side view of a shipping bag or packaging bag 11. The packaging bag 11 is sealed by transverse strips 15 and seven by a longitudinal strip 16 opposite the base of the bag. Inside the packaging bag 11 there is a shipping item 21 shown in dashed lines. The shipping item 21 can have a piece length SL and a piece height SH. The length of the packaging bag 11 corresponds to the sum of Piece length SL, the predetermined predetermined distance c and the second distance d. Figures 18 and 19 show other views of the packaging bag 11 shown in Figure 17.

The features disclosed in the above description, the figures and the claims can be important both individually and in any combination for the implementation of the invention in the various embodiments.

REFERENCE SYMBOL LIST

1 sheet-shaped starting material

2 material web supply

3 grooved material sheet

5 material web with a U-shaped cross section

6 Longitudinal edge

7 pocket base

8 wings

9 receiving cavity

11 packaging bag

15 horizontal stripes

16 vertical stripes

21 shipping items

100, 200 systems

105, 205 creasing element

106, 206 counter bearing roller

107, 108, 207, 208 grooved disc

109, 209 compression spring

110, 210 feed device

111, 211 driven conveyor roller

112, 212 traveling conveyor whales

115, 215 dancers (carrying roller, loose roller)

116, 216 booms

120, 220 pulley

123 guide plate

125 straps

126, 127, 128, 129 belt pulleys

130, 230 forming device

131, 132, 133, 231, 232, 233 folding roller

135, 235 rolling disc

136, 236 Command Staff

139 Entrance area

140, 240 guide surface

141, 241 counter bearing roller

142, 242 counter bearing roller

145, 245 counter bearing roller 146, 246 guide plate

149 light grids

150, 250 feeding device

15L 251 loading opening

153 introductory section

154 transfer section

155, 255 frames

156, 256 baffle

157, 257 bend

158, 258 camera

159, 259 inside

160, 260 marking device

161, 261 takers

170, 270 conveyor device

171, 172, 271, 272 conveyor roller

173 ring projection

174 ring groove

180, 280 sealing device

190, 290 separator

200 guidance device

201 channel

210, 211 lower guide element

220, 221 upper guide element a evasive movement b initial width c distance d second distance e reference plane f clear length g total length

1 forming length q clear length

SB piece width

SL piece length

SH piece height

L longitudinal direction of the web B web width direction

E feed direction

F conveying direction

U deflection axis V vertical direction

W roller axis

X axis distance

Y envelope distance

Claims

EXPECTATIONS

1. System (100, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11 ), comprising: a feed device (110, 210) for drawing off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with a V- or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L), the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two folding means protruding from a pocket base (7). Wings (8) in the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6), can be brought into contact with the material web, the system being a Deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the feed device (110, 210) along the deflection to the forming device (130, 230), characterized in that the deflection, in particular the deflection roller (120, 220), in a circumferential contact area of at least 10°, in particular at least ^45° , preferably at least 6o°, particularly preferably at least 90°, which can be brought into contact with the web-shaped starting material.

2. System (100, 200) according to claim 1, characterized in that the deflection comprises at least one retaining strap (125) which is in relation to a deflection axis (U) defined by the deflection can be brought into contact with the web-shaped starting material (i) on the radial outside, the retaining strap (125) being attached to the web-shaped starting material (1) at least in a part, in particular in at least a large part, of the peripheral contact area. can be created. System (100, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite one another in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11), in particular according to one of the preceding claims, comprising: a feed device (110, 210) for pulling off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with V- or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L) of the web, the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two of one Pocket base (7) protruding wings (8) in the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6), can be brought into contact with the material web , wherein the system comprises a deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the feed device (110, 210) along the deflection to the forming device (130, 230), characterized in that the Deflection is arranged in relation to a vertical direction (V) above the forming device (130, 230) and / or the deflection specifies at least one turn of the web-shaped starting material between the feed device (110, 220) and the forming device (130, 230). - System according to claim 3, characterized in that the deflection is arranged relative to the vertical direction (V) above the feed device (110, 210) and / or a material web supply (2). . System according to claim 3 or 4, characterized in that the web-shaped starting material (1) is guided in the forming device (130) with a conveying direction (F) which is directed downwards in relation to a vertical direction (V). . System (100, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite one another in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11), in particular according to one of the preceding claims, comprising: a feed device (110, 210) for pulling off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with V- or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L) of the web, the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two of one Pocket base (7) protruding wings (8) in the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6), can be brought into contact with the material web , wherein the system comprises a deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the feed device (110, 210) along the deflection to the forming device (130, 230), characterized in that the Forming device (130, 230) comprises at least two folding means arranged one behind the other in the conveying direction (F), such as slide rail sections, rigid sliding disks, mandrels or folding rollers (131, 132, 133, 231, 232, 233), the forming device (130, 230) and/or a loading device (150, 250) having a guide surface (140, 240) for the pocket base (7 ), and wherein a deflection axis (U) defined by the deflection, in particular the deflection roller (120, 220), is aligned transversely, in particular perpendicularly, to the conveying direction (F) along the guide surface (140, 240) and/or to the Guide surface (140, 240) is arranged offset, with at least one first folding means, such as a first folding roller (131, 231), being arranged between the guide surface (140, 240) and the deflection axis (U).

7. System according to claim 6, characterized in that the guide surface (140, 240) is provided with a counter bearing corresponding to at least one folding means, such as folding rollers (131, 132, 133, 231, 232, 233), in particular at least one counter bearing roller or a sliding surface is defined.

8. System according to claim 6 or 7, characterized in that a third folding means, such as a third folding roller (133, 233), between the guide surface (140, 240) and the first folding means, such as the first folding roller (131, 231) is arranged.

9. System according to one of claims 6 to 8, characterized in that the forming device comprises at least one folding roller (131, 132, 133), preferably two or three folding rollers, in particular the at least one folding roller (131, 132, 133) being two comprises roller disks (135) spaced apart in the roller axial direction (W).

10. System according to claim 9, characterized in that an axis distance (X) between the deflection axis (U) and the roller axis (W) of the first folding roller (131) is at least 10 mm, in particular at least 120 mm, and / or not more than 300 mm, in particular not more than 220 mm, preferably about 168 mm.

11. System according to one of claims 6 to 10, characterized in that an envelope distance (Y) between a material web contact area of the first folding means, in particular the first folding roller (131), facing the guide surface (140, 240) and one of the guide surface (140, 240) facing away from the deflection contact area of the deflection means, in particular the deflection roller (120), at least 10 mm, in particular at least 40 mm, and/or not more than 300 mm, in particular not more than 80 mm, preferably about 70 mm. System according to one of claims 6 to 11, characterized in that a forming length from the deflection, in particular the deflection roller (120, 220) to the second folding means, in particular the roller axis (W) of the second folding roller (132, 232), preferably up to to a loading opening (151, 251), not larger than 120 cm, in particular not larger than 100 cm, preferably not larger than 80 cm, and / or not larger than twice the initial width (b) of the web-shaped starting material web (1), in particular not is greater than 1.5 times the initial width (b). System according to one of the preceding claims, characterized in that the forming device (130, 230) comprises at least one pair of guide means opposite each other in the web width direction (B), such as guide rods (236), for guiding the web-shaped starting material (1) along a path in the conveying direction (F) tapering path. System (100, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite one another in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11), in particular according to one of the preceding claims, comprising: a feed device (110, 210) for pulling off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with V- or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L) of the web, the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two of one Pocket base (7) protruding wings (8) into the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6), can be brought into contact with the material web, the system having a deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the Drawing device (110, 210) along the deflection to the forming device (130, 230), characterized in that the system (100, 200) has a clamping means, such as a support roller (115, 215), which defines a clamping center axis, which is aligned in the web width direction (B), wherein the tensioning means can be brought into contact with the web-shaped starting material (1) along the tensioning center axis in order to cause the web-shaped starting material (1) to make an evasive movement (a) transversely to the conveying direction (F) and transversely to the web width direction (B), the clamping means in the conveying direction (F) between the feed device (110, 210) and the forming device (130, 230), in particular between the feed device (110, 210) and the deflector, in particular the deflection roller (120 , 220). System according to claim 14, characterized in that the clamping means is prestressed, in particular by a mechanical spring, and/or has a clamping mass, wherein preferably the clamping means is free of compressed air. System according to claim 14 or 15, characterized in that the clamping means is mounted on the retraction device (110, 210) so that it can move, in particular in the vertical direction (V). System according to one of claims 14 to 16, characterized in that the clamping means comprises at least one position sensor, such as a contactor, and the feed device (110, 210) is designed and set up to feed the web-shaped starting material at a feed speed depending on the position sensor act on it, in particular the retraction device (110, 210) Depending on a threshold value detection, such as a detection of an initial position, a drive switches active or inactive. System (100, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite one another in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11), in particular according to one of the preceding claims, comprising: a feed device (110, 210) for pulling off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with V- or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L) of the web, the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two of one Pocket base (7) protruding wings (8) in the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6), can be brought into contact with the material web , wherein the system comprises a deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the feed device (110, 210) along the deflection to the forming device (130, 230), characterized in that the Drawing-in device (110, 210) comprises at least one creasing element (105, 205) for introducing at least one longitudinal groove, in particular at least one longitudinal central groove, preferably two or three longitudinal central grooves, into the web-shaped starting material (1), and that the at least one creasing element (105, 205 ) a, preferably Teflon-coated, standing knife or at least one rotatably mounted grooved disk (107, 108, 207, 208). - System (ioo, 200) for converting a web-shaped starting material (1), which defines a longitudinal direction (L) of the web and extends between two longitudinal edges (6) opposite each other in the web width direction (B), in particular made of paper or cardboard, into packaging bags (11) , in particular according to one of the preceding claims, comprising: a feed device (110, 210) for pulling off the web-shaped starting material (1), a forming device (130, 230) for continuously forming the web-shaped starting material (1) into a material web (5) with V - or U-shaped cross section with a receiving cavity (9) extending in the longitudinal direction (L), the forming device (130, 230) comprising at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two of Wings (8) protruding from a pocket base (7) can be brought into contact with the material web in the web-shaped starting material (1) transversely to the longitudinal direction (L), in particular in the middle, preferably in the web width direction (B), between the opposite longitudinal edges (6). is, wherein the system comprises a deflection, such as a deflection roller (120, 220), for guiding the web-shaped starting material (1) from the feed device (110, 210) along the deflection to the forming device (130, 230), characterized in that the feed device (110, 210) comprises at least one creasing element (105, 205) for introducing at least one longitudinal groove, in particular at least one longitudinal central groove, preferably two or three longitudinal central grooves, into the web-shaped starting material (1), and that the at least one creasing element (105, 205) is spring-loaded and/or stored without compressed air. . System according to claim 19, characterized in that the at least one groove element (105, 205) urges against a groove counter bearing, such as a counter bearing roller (106, 206), the groove counter bearing preferably separately is realized by a driven and/or a driven feed roller (111, 112, 211, 212) of the feed device.

21. System according to one of the preceding claims, characterized in that the system further comprises a conveyor device (170, 270) for conveying the web-shaped starting material (1) formed in the forming device (130, 230), the conveying device (170, 270 ) a pair of cooperating conveyor rollers (171, 172, 271, 272) for gripping at least one longitudinal edge (6) of the material web (5) with a V- or U-shaped cross section.

22. System according to claim 21, characterized in that the conveyor rollers (171, 172, 271, 272) have a first conveyor roller (171, 271) with at least one convex circumferential embossing projection (173, 273) and a second conveyor roller (172, 272 ) with at least one embossing recess which is complementary to the embossing projection (173, 273).

23. System according to claim 21 or 22, characterized in that the conveyor rollers (171, 172, 271, 272) realize a longitudinal seal and are designed and set up to have two opposite wings (8) of the material web (5) with V or U-shaped cross section with a sealing pressure of at least 0.5 bar, in particular at least 1 bar, preferably at least 1.5 bar, to be pressed against each other in order to form a longitudinal strip (16) delimiting the packaging bag (11).

24. System according to one of the preceding claims, characterized in that the system further comprises a loading device (150, 250) with a loading opening (151, 152) through which shipping goods (21) can be inserted into the receiving cavity (9).

25. System according to claim 24, characterized in that the loading device (150, 250) has two guides for opposite wings (8), in particular longitudinal edges (6), which are adjacent to the loading opening (151, 251) and lie opposite transversely to the conveying direction (F). , the material web (5) with a V- or U-shaped cross section, such as guide plates (144, 146, 244, 246), guide rollers and / or guide rollers, the guides in the conveying direction (F) upstream and / or in the area of Feeding opening (151, 251) are arranged.

26. System according to claim 24 or 25, characterized in that the guide comprises at least one pair of guide rollers which are designed and set up to introduce at least one longitudinal groove, in particular a longitudinal edge groove, into one of the wings (8), in particular on its longitudinal edge (6). is. 27. System according to claim 26, characterized in that the at least one pair of guide rollers, in particular frictionally, is connected to a drive, in particular a conveyor drive (175, 275) of the conveyor device (170, 270).

28. System according to one of the preceding claims, characterized in that the system further comprises at least one

Sealing device (180, 280) for sealing at least one transverse strip (15) and/or one longitudinal strip (16) of the formed web-shaped starting material (1) and/or a separating device (190, 290) for separating a packaging bag (11) from the starting material web ( 1) along a transverse strip (15).