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

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

[0001] System for converting a web-shaped starting material into packaging bags

[0002] The present invention relates to a system for converting a web-shaped starting material into packaging bags. A web-shaped starting material defines a web longitudinal direction and extends between two opposite longitudinal edges. The web-shaped starting material is preferably made of paper or cardboard.

[0003] 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 package objects, especially shipping items, especially to protect them from damage during shipping.

[0004] Various systems are known for forming packaging bags from packaging material webs to hold objects such as shipping items.

[0005] 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 to the sliding plane. During deflection, the packaging web material is pulled along edged wedges, creating elongated grooves in the packaging web material. Downstream of the wedges, the packaging web material is to 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 thus has a large footprint, which is undesirable given the limited space in a shipping center. The introduction 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 cut pieces thereof.The packaging material cuts produced with the system sometimes have insufficient cushioning properties for damage-free transport of shipping items.

[0006] GB 1,067,166 describes a system for packaging objects. The system comprises a supply roll of a weldable web material such as polyethylene or polypropylene. Starting from the supply roll, the web material is unwound downwards over guide rollers and inserted between a forming channel defined by side walls running transversely to the web's longitudinal direction and an infeed channel extending inside the conveyor channel. The infeed channel is dimensioned for a specific type of similar shipping item. Along the infeed channel, the upwardly open packaging material web can be loaded with objects such as shipping items from above. A slider pushes the inserted objects out of the pair of channels in the conveyor direction into a packaging material tube.At the end of the infeed channel, the edges of the web material are folded inward by a pair of folding lips and sealed with a first die to form the packaging material tube. A second die, located further downstream of the conveyor, seals the leading and trailing edges of the tube in the longitudinal direction of the web and includes a cutting edge for separating packaging pockets. From an ecological perspective, it is desirable to avoid weldable plastic material webs. The supply roll positioned at the top can only hold a very limited amount of the starting material web. Furthermore, due to its weight, it is heavy and time-consuming 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 cut pieces thereof.The channel pairing is dimensioned to match the shape of specific items. This means that it is not flexible enough to package different items of variable shape. Instead, different channel pairs must be provided for different item types, requiring significant effort to convert the system. Furthermore, it has been shown that the protruding longitudinal edges of the packaging material web in the area of ​​the channel pair pose a risk of injury. Using the pusher is tiring and time-consuming for users. If a user has inserted items that are too large, these items or the packaging material web can be damaged when using the pusher. The system also has a large footprint, which is undesirable in small logistics centers.

[0007] 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 simple, safe and reliable in handling and suitable for packaging a wide variety of objects with little space requirement.

[0008] Accordingly, a system is provided for converting a web-shaped starting material, wherein the starting material defines a web longitudinal direction and extends between two longitudinal edges opposite in the web width direction. In particular, the starting material comprises or consists of paper or cardboard, in particular predominantly, i.e., at least 75%, in particular at least 80%, preferably at least 90%.

[0009] Web-shaped material or web material, such as the starting material, has a longitudinal web direction. The web-shaped material preferably has a constant web / material thickness. Web-shaped material generally expands in the web width direction transversely to the longitudinal web direction and, viewed transversely to the web direction, in particular has a constant width. In the web width direction, the web-shaped material has opposite longitudinal edges. In the web width direction, the packaging material web or the web-shaped starting material ends at a longitudinal edge extending in the web longitudinal direction. 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, or at least 1000 times greater than in the web width direction. Web-shaped material generally has much larger dimensions in the web width direction than in the thickness direction, for example, the extent of the web material in the web width direction can be at least 20 times, at least 50 times, at least 100 times, or at least 1000 times greater than the web / 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.

[0010] 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. Preferably, a web-shaped material is provided, in particular, from paper or cardboard, in particular corrugated cardboard. The material web can be made from paper, such as recycled paper, and / or 100% recyclable paper, which can be produced without chemical ingredients. Recycled paper is, in particular, paper materials with a low proportion (less than 50%) of paper material containing virgin fibers. For example, paper materials containing 70% to 100% recycled paper, in particular based on waste paper, are used.The recycled paper within the meaning of this invention can be paper material that 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, preferably a tensile strength of 5 Nm / g to 40 Nm / g. To determine the tensile strength or the tensile strength index, a standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used. In addition, 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 bursting 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 A2 / g. The DIN EN ISO 2758 standard is used to determine the bursting 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 web-like starting material can be in the form of a roll of material or a zigzag-folded stack of packaging material, also known as a fanfold stack.

[0011] The system according to the invention comprises a feed device for drawing 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 for the feed device to have a drive unit, such as an electric motor, that drives at least one conveyor roller or roller. The feed device is preferably designed to draw off 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.

[0012] 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 and configured to form the, in particular originally flat, web-shaped starting material into a material web with a V-shaped or U-shaped cross-section. The receiving cavity of the material web preferably 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 form an originally flat, web-shaped starting material by bending or folding at least one wing extending along a first (for example, right-hand in the conveying direction) or second (for example, left-hand in the conveying direction) longitudinal edge towards the other wing. Alternatively, the material web can be formed with a U-shaped cross-section. The forming device can be designed to bend or fold opposing wings on both opposite longitudinal edges of the originally flat, web-shaped starting material towards one another, forming 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.

[0013] In particular, the forming device comprises at least one folding means, such as a folding roller, which can be brought or is brought into contact with the material web, such as rolling contact, sliding contact or the like. The folding means can in particular be designed and configured to press against the material web. The folding means can be arranged 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, downstream, to the right or left of the conveying direction relative to the folding means, in such a way 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 orthe material web can be brought or brought.

[0014] The forming device comprises at least one folding means, such as a folding roller, which presses against the material web transversely to the web's longitudinal direction between the opposite longitudinal edges to introduce two wings protruding from a pocket base into the web-shaped starting material. Preferably, the folding means presses against the material web in the web width direction, in particular centrally between the opposite longitudinal edges.

[0015] The system for converting a web-shaped starting material into packaging bags further comprises a deflection device, such as a deflection roller, for guiding the web-shaped starting material from the draw-in device along the deflection device to the forming device. In the conveying direction, the deflection device is arranged between the draw-in device and the forming device. The deflection device can expediently implement a means which, at least in sections, determines the conveying path of the web-shaped starting material between the draw-in device and the forming device. In particular, the forming device can be matched to the web-shaped starting material, the draw-in device, and / or the forming device such that the web-shaped starting material has a flat, web-shaped extension at the forming device, in particular along an at least partial wrap of the forming device.A flat, web-like extension of the web-like starting material is to be understood in particular with reference to the extension of the starting material in the web width direction. In the conveying direction or the web longitudinal direction corresponding to the conveying direction, the flat, web-like starting material can be guided along a curved path, in particular by a deflection device, the feed device, and optionally a support roller or the like. The curved path can, for example, be C-shaped or S-shaped in sections. The deflection is preferably designed to change the path of the web-like starting material in the conveying direction, for example by at least 10° and / or no more than 180°.

[0016] The deflection can, for example, be shaped as a roller, in particular as an ideally cylindrical roller. A deflection designed as a roller can preferably be one-piece and extends along the width of the web-shaped starting material. Alternatively, a deflection designed as a roller can be convex, wherein the diameter in the respective end region of the roller is smaller than the diameter in the middle. The advantage of this design is that the deflection exerts 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 on the one hand allows the system to be designed to be particularly compact and on the other hand essentially eliminates the need for guide means for laterally guiding the web-shaped starting material.Furthermore, a convex design of the deflection device allows the web-like starting material to be pre-stretched, so that the downstream forming process can be simplified and, if necessary, made more reliable, and the conveying speed can be increased. The term "convex design" preferably refers to a continuously curved design. Alternatively, steps that approximate a convex silhouette are also conceivable. In a simple version, only a single step is present, whereby the deflection device, designed as a roller, resembles the shape of a double truncated cone, with the diameter being largest in the middle area of ​​this roller and smaller in the respective end area of ​​the roller.Convex designs of such a deflection device designed as a roller have proven to be very effective, whereby the different circumferential speeds have no discernible influence on the resulting friction between the web-shaped starting material and the roller.

[0017] It is conceivable for the deflection to be composed of a plurality of roller and / or roll sections arranged side by side, possibly distributed, in the transverse direction across the width of the web-like starting material. This plurality of roller and / or roll sections has a common pivot point along a straight central longitudinal axis. In this case, the aforementioned convex design of a deflection with a deflection roller or roll made up of a plurality of sections can be realized, in particular by at least individual roller and / or roll sections having different outer diameters, wherein the overall view of all roller and / or roll sections combined to form a deflection roller or roll preferably represents a convex structure in the manner of a convex enveloping silhouette.

[0018] It may be preferred that the deflection cooperates with a dancer, which is arranged upstream of the deflection in the conveying direction. In principle, such a dancer can be designed as a roller. The dancer can implement a tensioning means by which the web-shaped starting material is always kept under tension between the feed device and the forming device. The tensioning force is pre-adjustable 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 configured to guide the web-shaped starting material from the feed device along the deflection to the forming device. The deflection is preferably arranged upstream of the forming device in the conveying direction. 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 0, preferably at least 60°, particularly preferably at least 90°, which can be brought into contact with the web-shaped starting material or is in contact with it. The deflection preferably comprises a partially cylindrical or cylindrical, in particular rotating, means which determines the conveying path of the web-shaped starting material and which is preferably implemented by one, in particular a single, deflection roller. It can be preferred that the deflection is designed and configured to deflect the conveying direction of the web-shaped starting material at the outlet of the deflection in relation to the conveying direction at the inlet of the deflection in accordance with the circumferential contact area. As a result of 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 tears in the web-shaped starting material in the feed of the forming device can be significantly reduced.

[0019] According to one embodiment of a system according to the second aspect, the deflection comprises at least one retaining belt which can be brought into contact with the web-shaped starting material on the radially outer side with respect to the deflection axis, wherein the retaining belt can be placed on the web-shaped starting material or is placed on the web-shaped starting material at least in a part of the circumferential contact area, in particular in at least a large part of the circumferential contact area, wherein in particular the large part comprises at least 50%, in particular at least 75%, preferably at least 90%, of the circumferential contact area. In particular, the retaining belt 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 retaining belt is preferably guided by at least two, in particular three, belt rollers, wherein the retaining belt rests between a first and a second belt roller on the deflection, in particular the deflection roller. It can be expedient for the retaining belt to be conveyed by a retaining belt drive, in particular at a belt speed corresponding to the peripheral speed of the deflection roller. Optionally, the retaining belt 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 the case of a belt deflection roller, the rotatable bearing and the freewheel are aligned coaxially with one another. The free-running retaining belt has proven to be very helpful as an installation aid, particularly when installing the web-shaped starting material into the system, as it prevents the web-shaped starting material from running back.The use of a retaining strap has proven particularly useful in combination with large circumferential contact areas.

[0020] 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 pockets is provided, which system comprises a feed device, a forming device, and a deflection device. According to the second aspect of the invention, it is provided that the deflection device is arranged above the forming device in relation to a vertical direction and / or that the deflection device 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 remaining aspects. Alternatively, in particular in combination with the first and / or the remaining aspects of the invention, the deflection device can be arranged upstream 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 feeding device provided downstream of the forming device, defines a conveying path for the material web, along which the material web moves downstream during operation. The vertical direction can be defined as the direction that extends orthogonally relative to a support surface, such as a hall floor, on which the system is to be arranged or is 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 device 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, where 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 horizontal or an upright S. It is conceivable for the web-shaped starting material to be guided along a W- or M-shaped conveying path with three turns. By means of one or more turns, tensions for guiding the web-shaped starting material and for preparing a pocket-shaped forming process can be provided in the system. 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 can be preferred that the cylinder and / or rotation axes of these means are aligned spatially parallel to one another.By installing a deflection device, the system for converting web-like starting material into packaging pockets can be implemented in a particularly space-saving manner. Furthermore, the risk of tears in the web-like starting material can be significantly reduced.

[0021] According to a preferred embodiment of the system, the deflection is arranged in relation to a vertical direction above the feed device and / or optionally above a material web supply. It may be preferred that the conveying direction at the inlet of the forming device corresponds to the conveying direction at the outlet 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 spatially parallel to one another. By arranging the deflection above the feed device, further space-saving potential can be realized.By using an upper deflection device instead of the prior art material web supply, the system's handling is much easier than with conventional systems, both during maintenance and when loading with new starting material. Advantageously, the material supply and the feed device can be arranged directly above one another in the vertical direction, or they can be slightly offset from one another and arranged essentially one above the other in the vertical direction. To ensure the easiest possible handling of the material supply, especially during replacement and refilling, the feed device is preferably arranged above the material supply.The material supply and the feed device are furthermore 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 pockets 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 also bring about 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 a particularly ideally cylindrical roller, the material web leaves the deflection in a flat form according to 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.

[0022] According to one embodiment of the system, the web-shaped starting material is guided in the forming device with a conveying direction that is oriented 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 feeding device provided downstream of the forming device, defines a conveying path for the material web, which is oriented downwards in the vertical direction along 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 in the prior art to align the conveying direction of the material web in forming devices horizontally and to feed the web-shaped starting material to the forming device in a horizontal direction, further space savings can be achieved by the design according to the invention.

[0023] According to a third aspect of the invention, which can be combined with the first and remaining aspects, a system for converting a web-like starting material into packaging bags is provided, which system comprises a feed device, a forming device, and a deflection device. The deflection device, for example a deflection roller, is designed and configured to guide the web-like starting material from the feed device along the deflection device to the forming device.

[0024] 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 slide disks, mandrels, folding rollers or the like. The folding means preferably implement means of the forming device which determine the conveying path of the material web. The forming device and / or a feeding device define a guide surface for the pocket base. The guide surface is preferably designed to guide and / or support the V- or U-shaped formed material web in the region of the pocket base and / or between opposing wings of the material web. It can be preferred that the guide surface, at least in sections, implements a means which determine the conveying path of the web-shaped starting material or the material web and which comes into contact with the starting material orthe material web. The guide surface can be designed, in particular, as a stop for objects inserted or insertable in a loading device, such as shipping items. A deflection axis defined by the deflection device, in particular the deflection roller, is aligned transversely, in particular perpendicularly, to the conveying direction along the guide surface and / or offset from the guide surface.

[0025] According to the third aspect of the invention, it is provided that at least one 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 perpendicular to the guide surface between the first folding means and the guide surface measures at least one eighth, in particular at least one quarter, preferably at least one third and / or not more than three quarters, in particular not more than two thirds, preferably not more than half, of a distance orthogonal to the guide surface between the deflection axis and the guide surface. It is clear that the second folding means is arranged further away from the deflection in the conveying direction than the first folding means.In a design of a forming device with multiple folding rollers or the like, it may be preferred that the cylinder and / or rotation axes of these folding means are aligned spatially 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 spatially parallel to the deflection axis. It has surprisingly been shown that, thanks to the use of multiple folding means in the forming device, a reliable, reproducible, and 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 web longitudinal direction corresponding to the conveying direction can be achieved with a low risk of tearing.

[0026] 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 counterbearing, in particular at least one counterbearing 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 counterbearing roller, in particular several counterbearing rollers, and / or at least one sliding surface, in particular several sliding surfaces, wherein in particular counterbearing rollers and sliding surfaces can be provided alternately in the conveying direction, a reliable counterbearing can be realized on the guide surface for supporting the pocket base and, if applicable, objects that can be inserted or inserted into the receiving cavity, such as shipping items.In the case of a counterbearing which has counterbearing rollers and sliding surfaces, it can be provided that, in the case of counterbearing rollers and sliding surfaces arranged one behind the other in the conveying direction, at least one counterbearing roller is slightly raised compared to the at least one adjacent sliding surface, wherein in particular the plane tangentially adjacent to the counterbearing roller, in particular to several immediately adjacent counterbearing rollers, is at a distance from the sliding surface. The distance can be dimensioned such that during conveying the pocket base rests against the counterbearing roller or the counterbearing rollers and is conveyed with low friction, wherein, depending on the loading condition, the at least one sliding surface is additionally available for support. The said distance lies in a range of 1 mm to 3 mm and is typically 1.5 mm.

[0027] 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 and optionally further folding means can be arranged between the first and second folding means in the conveying direction and / or in the direction orthogonal to the guide surface.

[0028] According to one 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, each comprise two rolling disks spaced apart in the axial direction of the roller. A spacer can be provided between the rolling disks. The V- or U-shape of the formed material web can be predetermined by the spacing of the rolling disks of the at least one folding roller in the axial direction of the roller. In particular, a transverse width of the pocket base can be determined by the spacing of the rolling disks of a folding roller in the axial direction of the roller.

[0029] The folding rollers are preferably designed to be interchangeable and / or adjustable. This makes it possible to adapt the system quickly and easily to a different material or to a different material of the web-shaped starting material. It is also possible to adapt the material web to a desired V- or U-shape to be formed easily and quickly. A material web formed with a V-shaped cross-section has one, preferably exactly one, groove created by one, in particular exactly one, folding roller, along which groove the one disk-shaped rolling disc preferably runs. Regardless of the number of grooves, it can be advantageous to use rolling discs 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 requires less force.

[0030] According to a further development of the system, an axial 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 approximately 168 mm. The deflection means can optionally have a smaller outer 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 deformation of a web-shaped starting material into a material web with a V- or U-shaped cross-section can be realized.

[0031] In an embodiment of the system according to the third aspect of the invention, a turn-over distance between a material web contact area of ​​the first folding means, in particular the first folding roller, preferably its outer circumference, facing the guide surface and a deflector contact area of ​​the deflection means, in particular the deflection roller, facing away from the guide surface measures 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 approximately 70 mm. It may be preferred that the turn-over distance be determined in the direction perpendicular to the guide surface.

[0032] 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 to a feed 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.

[0033] According to one embodiment of the system for forming a web-shaped starting material into packaging bags, which can be realized, for example, according to the first, second, or third aspect, the forming device comprises at least a pair of guide means, such as guide rods, located opposite one another in the web width direction, for guiding the web-shaped starting material along a path that tapers in the conveying direction. The pair of guide means can, for example, be designed to form an originally flat web-shaped starting material by bending or folding at least one wing, which extends along a first (for example, right-hand in the conveying direction) or second (for example, left-hand in the conveying direction) longitudinal edge, towards the other wing. The pair of guide means can form a conveying path of the web-shaped starting material orThe means for determining the material web can be arranged to the right or left in relation to the conveying direction, and optionally upstream and / or downstream of the folding means. Preferably, the folding means, together with the pair of guide means, causes a deformation of an originally flat web-like extension. Other guide means can comprise a plurality of individual rollers, thus reducing friction in the conveying direction.

[0034] 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 system comprises a feed device, a forming device, and a deflection device. The deflection device, for example a deflection roller, is designed and configured to guide the web-shaped starting material from the feed device along the deflection device to the forming device. According to the second aspect of the invention, the system has a tensioning means, such as a support roller. The tensioning means defines a tensioning center axis that is aligned in the web width direction.The tensioning device can be brought into contact with the web-shaped starting material or is in contact with the web-shaped starting material in order to urge the web-shaped starting material into an evasive movement transversely to the conveying direction and transversely to the web width direction, in particular under the action of force, wherein in particular the web-shaped starting material is subjected to a predetermined tension or tensioning force so that it is always tensioned between the feed device and the conveying device and does not sag. The tensioning device is arranged in the conveying direction between the feed device and the forming device. In particular, the tensioning device is arranged between the feed device and the deflector, in particular the deflection roller. Preferably, the tensioning device is designed to perform a compensating movement in the vertical direction upwards and / or downwards.

[0035] According to a preferred embodiment of the fourth aspect of the invention, the clamping device is preloaded. The preload urges the clamping device to perform a compensating movement. Preferably, the preload force is directed counter to a force acting on the clamping device through the web-like starting material. In particular, the clamping device is preloaded by a mechanical spring. Alternatively or additionally, the clamping device comprises a clamping mass. The clamping mass can urge the clamping device vertically downwards in the direction of gravity. Preferably, the clamping device is compressed air-free. By avoiding a compressed air actuator, for example, a pneumatic piston, the energy and space requirements of the system can be minimized.

[0036] In one embodiment of the fourth aspect of the invention, the clamping means is movably mounted on the feed device. The clamping means is generally movably mounted transversely to the conveying direction. In particular, the clamping means can be movably mounted 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 feed device can, for example, have a linear guide in which the clamping means is held. Alternatively, the feed device can have one pivotable guide or a pair of pivotable guides which pivotally hold the clamping means on the feed device. Alternatively, the clamping means is pivotally mounted on the frame of the system.

[0037] A further embodiment of the fourth aspect of the invention provides that the tensioning means comprises at least one position sensor, such as a contactor. The feed device is preferably designed and configured to apply a feed speed to the web-shaped starting material depending on the position sensor, wherein the feed device activates or deactivates a drive depending on a threshold value detection, such as detection of an initial position. When the drive is in an active state, it drives the feed device to draw in the web-shaped starting material from the material web supply. When the drive is inactive, it does not actuate the feed 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 above, other control methods are also conceivable. For example, a three-point controller can switch the drive to a (second active) operating state in addition to the (first) active and inactive states, with a conveyor speed that is faster or slower than the conveyor speed of the (first) active state. Alternatively or additionally, the clamping device can be designed as a continuous controller, for example, with a position sensor or angle sensor for continuously detecting the actual position of the clamping device.

[0038] Alternatively or additionally, an embodiment of the system comprises 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 under prestress. The force measuring sensor can be arranged on a bearing and / or holder of the deflection and / or the feed device or at another suitable location in the system. The force measuring sensor and the drive and / or the feed device are components of a drive control loop. Preferably, the drive control loop is designed and configured to always keep the prestress of the web-shaped starting material at a predefined level, in particular independently of the operation of the conveying device. The drive control loop is preferably designed and configured to set a smooth start-up of the drive of the conveying device when a conveying movement starts.In particular, the drive control loop is designed and configured to gradually increase the conveying speed of the web material. Alternatively or additionally, the drive control loop is designed and configured to gently and gradually reduce the conveying speed until it stops during a shutdown. Such a system configuration with a drive control loop can be implemented without a clamping device.

[0039] 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 device. The deflection device, for example a deflection roller, is designed and configured to guide the web-shaped starting material from the feed device along the deflection device to the forming device.

[0040] According to the fifth or sixth aspect of the invention, the feed device comprises at least one creasing element for introducing at least one longitudinal tear, in particular at least one longitudinal central groove, preferably two or three longitudinal central grooves, into the web-shaped starting material. The at least one creasing element is preferably coordinated with a folding means, in particular at least one, preferably first, folding roller. The system can expediently be equipped with at least one creasing element designed to introduce one or more grooves in the web-longitudinal direction into the web-shaped starting material, preferably comprising paper or cardboard or consisting thereof, in order to improve the forming process of the web-shaped starting material along the longitudinal grooves by the folding means. The introduction of the at least one longitudinal groove is preferably carried out in accordance with DE 10 2020 114211 A1.

[0041] According to the fifth aspect of the invention, the at least one creasing element comprises a stationary knife, preferably a Teflon-coated knife, or at least one rotatably mounted creasing disc. Such a creasing element allows grooves to be reliably introduced into the web-like starting material with a low risk of tearing.

[0042] According to the sixth aspect of the invention, the at least one creasing element is spring-loaded and / or mounted without compressed air. By preloading the creasing element, preferably by means of at least one mechanical spring and / or without a pneumatic actuator, the required forming force can be optimally adjusted to ensure a fast and reliable forming effect by the system.

[0043] According to one embodiment of a spring-loaded and / or pneumatically mounted creasing element, this at least one creasing element pushes against a creasing counterbearing, such as a counterbearing roller. The creasing counterbearing is preferably implemented separately from a driven and / or driven feed roller of the feed device.

[0044] 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 away the web-shaped starting material formed in the forming device, wherein the conveyor device comprises a pair of cooperating conveyor rollers for gripping at least one longitudinal edge of the material web with a V- or U-shaped cross-section. It may be preferred that the paired conveyor rollers have a perfectly cylindrical and / or smooth outer circumferential surface.

[0045] In a further development of the system with a conveying device, it is provided that the conveying rollers comprise a first conveying roller which has at least one convex circumferential embossed projection and a second conveying roller with at least one embossed recess which is complementary to the embossed projection.

[0046] According to an alternative or additional development of the system with a conveyor device, the conveyor rollers implement a longitudinal seal. The conveyor rollers are designed and configured to press two opposing 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 1 bar, preferably at least 1.5 bar, in order to form a longitudinal strip delimiting the packaging pocket. The level of the sealing pressure can be adapted to the adhesive used. A sealing pressure of 1 bar corresponds to a joining force of 10 Newtons per square centimeter acting on the packaging pocket.

[0047] The conveyor rollers are optionally designed with a friction fit on their outer surface to ensure reliable conveyance of the material web. For this purpose, the outer surface can be profiled. Profiling can be in the form of ribbing or knurling. Alternatively, the outer surface can be smooth and / or rubberized. The conveyor rollers themselves preferably rotate in pairs in opposite directions, with the two opposing wings of the material web being guided between them, thereby sealing the material. 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 by the rollers of the conveying device, the feed device is activated in response thereto, 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 ensured.

[0048] It may be preferred for the conveyor rollers to be provided with only one drive. Both conveyor rollers can be coupled to each other via a gear. 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 friction-locked conveyor roller, in particular, with profiling and / or a rubber coating on its outer surface and conveying the material web via the outer surface.

[0049] Another embodiment of the system for converting a web-like 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 a loading device. The loading device has a loading opening through which shipping items or goods can be inserted into the receiving cavity of the converted material web.

[0050] According to a further development of a system with a feeding device, the feeding device comprises two guides adjacent to the feeding opening and arranged transversely to the conveying direction, for opposing wings, in particular longitudinal edges, of the material web with a V- or U-shaped cross-section. The guides can be implemented, for example, as guide surfaces, guide rollers, and / or guide rollers. The guides are arranged upstream in the conveying direction and / or in the region of the feeding opening, in particular at the level of the feeding opening.

[0051] In a preferred development of the system with feeding 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.

[0052] According to another embodiment, the system for converting a web-shaped starting material into packaging pockets according to at least one of the 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 one longitudinal strip of the converted web-shaped starting material and / or a separating device for separating a packaging pocket from the starting material web along a transverse strip.

[0053] Preferred embodiments are given in the subclaims.

[0054] In the following, further properties, features and advantages of the invention will become clear by describing preferred embodiments of the invention with reference to the accompanying exemplary drawings, in which:

[0055] Figure 1a is a side view of a first embodiment of a system for forming a web-shaped starting material into mailing bags;

[0056] Figure ib is a side view of a second embodiment of a system for forming a web-like starting material into mailing bags;

[0057] Figure 2 is a perspective view of a second embodiment of a system for forming a web-like starting material into mailing bags;

[0058] Figure 3 shows a detailed view of a deflection;

[0059] Figure 3a shows a system for forming a web-shaped starting material with a different deflection variant;

[0060] Figure 3b shows a system for forming a web-shaped starting material with a different deflection variant;

[0061] Figure 3c shows a system for forming a web-shaped starting material with a further deflection variant;

[0062] Figure 4 shows a detailed view of a forming device in the conveying direction;

[0063] Figure 5 shows a detailed view of the forming device according to Figure 4, transverse to the conveying direction; Figure 6 shows a side view of a third embodiment of a system for forming a web-shaped starting material into shipping envelopes;

[0064] Figure 7 is a perspective view of the system according to Figure 6;

[0065] Figure 8 is a side view of a feed device with creasing elements;

[0066] Figure 9 is a detailed view of a feeding device in the feeding direction;

[0067] Figure io is a detailed view of the feeding device according to Figure 9 transverse to the conveying direction;

[0068] Figure 11 is a sectional view of a feeding device in the feeding direction;

[0069] Figure 12 shows a detailed view of a conveying device;

[0070] Figure 13 is a perspective view of a separating and sealing device;

[0071] Figure 14 is a schematic representation of a feeding device with a measuring device;

[0072] Figure 15 is a perspective view of a loading device with an optical sensor;

[0073] Figure 16 is a perspective view of a loading device with a labeler and a light grid;

[0074] Figure 17 is a side view perspective view of a mailing bag;

[0075] Figure 18 is a perspective view of the shipping bag according to Figure 17; and

[0076] Figure 19 is a view of the mailing bag according to Figure 17, looking from the outside onto the bottom of the bag.

[0077] To simplify readability, the following description of preferred embodiments of the various aspects of the invention, which can be implemented individually or combined, uses the same or similar reference numerals for the same or similar components of different embodiments of systems for converting a web-like starting material into packaging bags. Those skilled in the art will understand that, although the exemplary embodiments of a system described below sometimes embody several combinable aspects of the invention, 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, which defines a web longitudinal direction and extends between two opposite longitudinal directions 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 numeral 100 or 200. The various embodiments of systems according to the invention, which are provided on the one hand with the reference numeral 100 or on the other hand with the reference numeral 200, differ essentially only in the position of the various system components relative to one another and the resulting conveying path for the starting material.

[0078] The web-shaped starting material 1 is preferably formed from or consists of cardboard or paper. In addition to cardboard or paper, the starting material 1 can comprise an adhesive or the like for sealing the packaging pockets 11 to be formed. An example of a packaging pocket 11 that can be produced using the system according to the invention is shown in Figures 17-19.

[0079] As shown in Figures 1a and 1b 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 without cranes or similar lifting aids. Instead, for example, a mobile support frame 20 for a material web supply 2 can be used, as can be seen in Figure 2. The support frame 20 itself can be mechanically coupled to the system 100, for example, plugged in, in order to ensure 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 formed by the opposite longitudinal edges 6 of the starting material web 1. To form the roll-shaped material web supply 2, the starting material web 1 is wound in the direction of its web longitudinal direction L.

[0080] The system 100 and, if applicable, the support frame 20 stand on a surface, such as a hall floor, that extends essentially horizontally. A vertical direction V extends orthogonally along this surface and / or in the direction of gravity.

[0081] To process the web-shaped starting material 1 into a plurality of packaging pockets 11 by the system 100, the material web 1 is guided through the system 100 with its longitudinal direction L according to a conveying direction F, and is pulled through it, 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.

[0082] The conveying path of the material web i through the system 100 according to the embodiments shown by way of example in Figures 1a and 1b or Figure 2, as well as through the system 200 according to the embodiment shown by way of example in Figures 6 and 7, generally runs (in successive order according to the following list of the system components) from a material web supply 2 through a feed device 110 / 210, along a clamping means, 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 feeding device 150 / 250 and further with a conveying device 170 / 270 and a sealing device 180 / 280 and finally a separating device 190 / 290.

[0083] In the embodiments shown here as examples, the web-shaped starting material 1 extends essentially flat, in particular in a horizontal direction, from the material web supply 2 to the deflection roller 120 / 220 in the web width direction B. The starting 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-shaped or U-shaped cross-section and a receiving cavity 9 extending in the web longitudinal direction L. The receiving cavity 9 is delimited on the one hand by a pocket base 7 and on both sides thereof by wings 8 protruding transversely to the conveying direction F and / or web longitudinal direction L and which extend in the web longitudinal direction L. From the forming device 130 / 230, the material web 5 with a V- or U-shaped cross-section is transferred to the feeding device 150 / 250.The feeding device 150 / 250 has a feeding 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 has a V- or U-shaped 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 to form packaging pockets 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 pockets 11 containing 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. For pulling the material web 5 in the conveying direction F, the conveying device 170 / 270 has conveying rollers 171 and 172 / 271 and 272, which are arranged opposite one another and rotate in opposite directions to one another. The wings 8 of the material web, which are still spaced apart from one another and have a V- or U-shaped cross-section, are inserted between the conveying rollers 171 and 172 / 271 and 272 on the inlet side. During the conveying process, the wings 8 are moved further towards one another. The wings 8 can be arranged between the conveying rollers.

[0084] 171 and 172 / 271 and 272 are pressed against each other during conveying, whereby on the one hand a sealing of the edge area of ​​the wings 8 between the conveying rollers 171 and

[0085] 172 / 271 and 272 to form the longitudinal strips 16. Upon insertion of the longitudinal strip 16, the receiving cavity 9 can immediately be closed transversely to the web longitudinal direction L. The at least one shipping article 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 web longitudinal direction L, and on the side of the front end region of the material web by the sealing device 180 / 280.

[0086] In an alternative embodiment, sealing rollers (not shown in detail) are provided as a pair of rollers, which are arranged opposite one another and 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 a force application and being movable relative to the other sealing roller. The force application 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 sealing of the edge region of the wings 8 takes place. Furthermore, the spring force is adjustable, which is made possible by means of an adjustment thread.Thus, within the scope of this mobility, a flexibility is also created, whereby the center distances of the respective bearings and thus the center distances of the respective conveyor rollers 171 and 172 / 271 and 272 can adapt to the thickness of the web-shaped starting material 1, whereby a constant or almost constant pressing 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 counter to the spring force, can lie 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 of 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 and pivoting bearing blocks are possible. These can be equipped with a travel limiter, if necessary, so that a small air gap is created between the rollers when the device is free of material.

[0087] According to a first embodiment, the sealing device 180 / 280 is arranged 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 article 21 is now completely enveloped and enclosed by the material of the material web. The closing and sealing advantageously takes place by means of and between two jaws which extend across the entire width of the packaging pocket 11 and thus transversely to the web's longitudinal direction L. At least one of the jaws can be displaceably driven by a drive such that the at least one motor-driven jaw exerts a force of 1 bar or 10 Newtons per square centimeter from the outside on the material web, whereby the sealing takes place and the transverse strip 15 is formed.The packaging bag 11 is then formed and surrounds the shipping item.

[0088] Subsequently, individual packaging pockets 11 can be severed from the material web and thus separated in a further process step by means of the separating device 190 / 290. Alternatively, the separation and separation of the packaging pockets 11 can also take place in the process sequence as described above, provided that it is ensured that the sealing takes place in the final process step, for example as described above. For this purpose, it can be expedient if the at least one displaceably drivable jaw fixes the severed shipping pocket 11 by means of a counter jaw and the sealing or the creation of the transverse strip 15 takes place directly in conjunction with the separation and separation from the material web. However, it is and remains essential in these embodiments and process sequences that the sealing device 180 / 280 is at least partially in functional union with the separating device 190 / 290.

[0089] Figure 1a shows a side view of a first embodiment of the system 100 for converting the web-shaped starting material 1, which is formed in particular from paper or cardboard, into packaging pockets 11. A feed device 110 draws 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.

[0090] 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 grooving element 105, is guided along a support roller 115. The support roller 115 can be referred to as a loose roller or dancer roller. The support roller 115 is mounted on the system 100, in the embodiment according to Figure 1a on the feed device 110, so as to be movable transversely to the conveying direction F. The support roller 115 is held movable to carry out an evasive movement a relative to the feed device 110 and / or a deflection 120. As shown in Figure 1a, the evasive movement a can be oriented 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 conveying device 170 taut to a predetermined extent.

[0091] The support roller 115 can be preloaded downwards in the vertical direction V, for example, 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 without a pneumatic actuator. The tension force of the web-shaped starting material 1 acts counter to the preload of the support roller 215 as a result of a tensile force acting on the starting material web 1 by 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 at the conveyor device 170 and / or the separating device 190, on the other hand, can be compensated.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 quantity of web-shaped starting material 1 can be stored along the conveying path. From the feed device 110, the conveying path of the starting material web runs in an S-shape with two turns, first a slight one at the support roller 115 and then a sharp one at the deflection roller 120, to the forming device 130.

[0092] In the feed section of the forming device 130, a deflection device is arranged, which in the exemplary embodiment shown here is implemented as a deflection roller 120. The web-shaped starting material 1 is supported along the deflection axis U on the deflection roller 120 before being 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.

[0093] Figure 3 shows a deflection system with a deflection roller 120 and an optional retaining belt 125. The web-shaped starting material 1 is guided along a circumferential contact area 121. In the exemplary embodiment shown in Figure 3, according to Figures 1a and 1b, the circumferential contact area 121 extends over more than 90° around the outer circumference of the deflection roller 120. The retaining belt 125 is in touching contact with part of the circumferential contact area 121. The retaining belt 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 retaining belt 125 can serve as a threading aid when a new material web is fed into the machine. If the holding belt is applied to the deflection with a slight tension, this may be sufficient to hold the material web to be rethreaded between deflection 120 and belt 125.This prevents the starting material from being pulled back by gravity or by the dancer. Preferably, the belt deflection rollers 126, in particular the driven one, have a freewheel that does not impede the conveying movement of the starting material 1 during its movement in the conveying direction F. It may be preferred that a freewheel is integrated solely in the driven belt deflection roller, while the remaining belt deflection rollers are freely rotatable.

[0094] Preferably, one of the belt deflection rollers 126 is driven. The belt roller drive serves as a setup aid. Using the belt roller drive, the belt 125, and thus the material web, can be gradually advanced at a slower speed by the setup operator at the touch of a button. This allows the setup operator to concentrate fully on threading the new source material through the forming device 130 and the conveyor device 170 to the cutting device 190. Once the machine is set up, the freewheel engages, and the belt runs loosely, but remains pre-tensioned and in contact with the web-shaped source material 1.

[0095] In the embodiment shown in Figure 3, the holding belt 125 is guided along three belt deflection rollers 126, 127, of which, for example, one belt deflection roller 126 is driven and one belt deflection roller 127 can be movably mounted to maintain belt tension. The driven belt roller 126 can provide a drive force for conveying the starting material web 1. Optionally, the belt roller 126 is provided with a freewheel, which is arranged between the drive motor and the holding belt 125 itself in terms of drive technology. This facilitates the restart of the system 100, 200 or when a new material web 5 is fed 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 pulley 120 is arranged centrally between these belt deflection pulleys 126, 128, slightly offset downwards in the vertical direction V.The downstream belt deflection pulley 127 is positioned vertically below the roller 128 arranged above it in the vertical direction V. The deflection axis U of the deflection pulley 120 is located between the two belt deflection pulleys 127, 128 in the vertical direction V. In the direction of the deflection axis U, the holding belt 125 extends considerably shorter than the deflection pulley 120. A curved guide plate 123 is arranged between the downstream belt deflection pulley 127 and the deflection pulley. The small, arc-shaped guide plate 123 guides the material web towards the forming roller 131. The deflection, implemented here as deflection pulley 120, is arranged vertically above the forming device 130 in the vertical direction V. The deflection pulley 120 is also arranged above the feed device 110, which is located above the material web supply 2. In the embodiment according to Figure 1a, 1b or Figure 2, the deflection forms the uppermost component of the system 100.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 installed in a logistics hall with a small footprint.

[0096] Figures 3a to 3c show systems 100 which are designed as described above with respect to Figures 1 to 3 and which essentially only differ in the shape and guidance of the respective retaining strap 125.

[0097] In the embodiment shown in Figure 3a, the retaining belt 125 is guided along three belt deflection rollers 126, 127, 128. A difference from the variant previously described with reference to Figure 3 can be seen in the arrangement of the downstream belt deflection roller 127. This variant does not have a guide plate. Instead, the downstream belt deflection roller 127 is arranged closer to the conveying path F of the material web relative to the second belt deflection roller 128, transverse to the conveying direction F.

[0098] In the embodiment shown in Figure 3b, a guide device 200 with an upper guide element 220 and a lower guide element 210 extends to an inlet region 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.

[0099] 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 1b and Figure 3b, the distance between the guide elements 211, 221 and thus the channel height of the channel 201 continuously decreases from the feed device 110 in the conveying direction F to the deflection roller 120. Thus, the lower guide plate 211 and the upper guide plate 221 have different gradients with respect to the horizontal direction. The gradient of the upper guide plate 221 is less than that of the lower guide plate 211. This provides sufficient space for the dancer 115. In another embodiment, which is not shown in detail, the guide elements 211, 221 are aligned plane-parallel to one another, spaced apart by the channel height.In this embodiment, the lower guide plate 211 and the upper guide plate 221 thus have the same pitch with respect to the horizontal direction.

[0100] In the embodiment shown in Figure 3c, the holding belt 125 is guided along four belt deflection rollers 126, 127, 128, 129. The belt 125 receives the material web very early, in the area of ​​the belt deflection roller 126 driven by the belt, and guides it - '2^ - to the deflection 120. The material web is guided along the circumferential surface of the deflection roller 120 by the belt 125.

[0101] 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 thus provided between the guide plate and the belt 125, which runs from the driven roller 126 to the deflection roller 120, in which the dancer 115 is movable. This is also advantageous when a leading material web section is deformed, for example, bent, and must be "caught" by the belt 125.

[0102] Three of the four belt deflection pulleys 127, 128, 129 are arranged as belt deflection pulleys, like those previously described with reference to Figure 3a, although in the embodiment according to Figure 3c, none of these pulleys is driven. The alternative belt guide has two belt deflection pulleys 128 and 129 in the upper area, which are arranged horizontally offset from one another on the opposite sides of the deflection pulley 120. According to an alternative not shown, instead of the two horizontally offset belt deflection pulleys 128, 129, only a single belt deflection pulley with a sufficiently large diameter to bypass the deflection pulley 120 could be provided.

[0103] 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 in the conveying direction F corresponding to the vertical direction V into and through the forming device 130. The longitudinal edges 6 of the material web can remain essentially in the plane determined by the deflection, which extends from the deflection to the conveying device 170. The central region of the material web is formed in the forming device 130 by folding means, which are implemented 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 that extend up to the longitudinal edges 6.

[0104] The forming device 130 comprises a first folding roller 131, the roller axis W of which is aligned parallel to the deflection axis U and 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 turn-over 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 arranged significantly further offset from the deflection axis U in the direction of conveying direction F through the forming device 130, preferably by 2 times to 5 times the axial distance X.Transverse to the conveying direction F (in the feeding direction E), the second folding roller 132 is further relative to the first folding roller 131 relative to the deflection axis U at the folding distance Y, but not more than 100%, but only approximately 10% - 50%. The roller axes W of the folding rollers 131, 132, and, if applicable, 133, are spatially parallel to each other.

[0105] The folding rollers 131, 132, and 133 are formed by a pair of rolling disks 135, between which a spacer 134 is arranged. The distance between the rolling 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 creasing disks 107, 207 of a creasing element 105 upstream of the forming device.

[0106] The forming device 130 has a guide surface 140, which is partially realized by counter-bearing rollers 142, 143 assigned to the folding rollers 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 conveying device. In the embodiment of the system 100 according to Figures 1 or 2, the guide surface 140 extends in a substantially vertical plane.

[0107] Figures 6 and 7 show different views of another embodiment of a system 200 for converting a web-like starting material into packaging bags. In this system 200, too, the deflection roller 220, which implements the deflection in the vertical direction V, is arranged in the uppermost region of the system 200. In contrast to the systems 100 described above, however, the conveying direction F is essentially horizontal in the converting device 230 as well as at the output of the feed device 210. From the feed device 210, the conveying path of the starting material web runs in an S-shape with a sharp lower turn at the support roller 215 and then a slight upper turn at the deflection roller 120, to the converting device 230. The feed device 210 is described in detail below with reference to Figure 8.

[0108] 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 essentially applies to what was previously explained with reference to Figures 4 and 5. The guide surface 240 extends through both the deflection device 230 and the feeding device 250. Several sections of the guide surface 240 and the counter-bearing rollers 241, 242, 243, and 245 arranged therein form a section surface for the outer side of the material web 5 in the region of the pocket base 7.

[0109] Provided inside the forming device 230 are a pair of opposing guide rods 236 whose transverse spacing tapers in the conveying direction F. The guide rods 236 are arranged transversely to the conveying direction F 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 feeding device 250. The outer sides of the wings 8 can be guided along the guide rods 236 to form the V- or U-shaped material web 5. The counter-bearing rollers 241, 242, and 243 are arranged in the region 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 region of the feeding device 250 opposite the feeding opening 251. In the embodiment of the system 200 shown in Figures 6 and 7, the guide surface 240 extends essentially in a horizontal plane.

[0110] The loading device 250 is arranged downstream of the forming device 230. The loading device 250 has a loading opening 251 completely surrounded by a solid frame 255. The interior space 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 determines the maximum length of a loadable shipping item. The loading direction E, through which shipping items (not shown in detail) 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.

[0111] Downstream of the feeding device 250, a conveying device 270 is arranged, which can grip the longitudinal edges 6 of the material web 5 and convey them in the conveying direction F. Following the conveying device 270, a sealing and separating device 280 / 290 is provided for forming and separating packaging pockets 11 from the web-shaped starting material 1.

[0112] 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 inlet and outlet 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 that 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.

[0113] The feed device 210 comprises a creasing element 205. In the preferred embodiment shown here, the creasing element 205 is arranged upstream of the conveyor roller pair 211, 212. The creasing element 205 comprises two axially offset creasing discs 207, 208. The creasing discs 207, 208 are mounted on a bracket 216, spring-loaded by a compression spring 209. It is conceivable that the creasing discs 207, 208 are held rotationally rigidly. Preferably, the creasing discs 207, 208 are rotatably mounted. The creasing discs 207, 208 roll on the counter-bearing roller 206. The compression spring 209 urges the creasing discs against the counter-bearing roller or counter-bearing roll 206. The web-shaped starting material (not shown in detail in Figure 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 is formed into a grooved web material 3.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 creasing element 205, in order to form the material web 5 with a V- or U-shaped cross-section.

[0114] 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 system 100 essentially corresponds to the loading device 250 of system 200. The counter-bearing rollers 145 are arranged in the area of ​​the loading device 150 in the loading direction E opposite the loading opening 151. The counter-bearing rollers 145 limit the depth to which a shipping item (not shown in detail) can be inserted in the loading direction E. In the embodiment shown in Figures 9 and 10, the loading direction E is oriented horizontally.

[0115] In the conveying direction F, the loading opening 151 has a clear length f. Transversely 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 that completely surrounds the loading opening 151. Transversely to the conveying direction F, the loading opening 151 is delimited 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 in a V- or U-shaped material web 5 (see Fig. 1). The guide plates 156 form guide plates 144 behind the frame 155 in the interior 159 of the feeding device 150 for guiding the wings 8 in the conveying direction F on their inner sides 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.

[0116] The clear length f and / or the clear width q can be adjustable. The frame 155 assumes 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 pocket 11 can be derived according to a predetermined price group of a parcel delivery service. The clear length f and / or the clear width q can optionally be adapted to shipping items 21 with different dimensions, wherein in particular the dimensions of the packaging pocket 11 can be changed accordingly. Figure 11 shows a sectional view through the feeding device 150 through a cutting 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 feeding device 150 are shown by dashed lines in Figure 11.The guidance of the right and left wings 8 between the respective guide plates 144 and 146 is clearly visible in the section plane. The guide plates 144, 146 form a funnel-like infeed section 153, which serves to reliably feed the V- or U-shaped material web 5 from the forming device into the feeding device 150.

[0117] 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. The conveyor rollers 171, 172 preferably have mutually cooperating cylindrical outer circumferential surfaces. The conveyor rollers 171, 172 can apply high tensile stresses to the material web 5 in order to realize the forming from a flat starting material web into a formed material web along a particularly short trap line through the forming device 130. Figure 12 shows an optional embodiment of a conveyor roller pair 171, 172, which forms a sealing device 180.A first conveyor roller 171 has a full-circumferential annular projection 173, which rolls in a corresponding full-circumferential annular groove 174 of the second conveyor roller 172. The sealing device 180 formed by the conveyor roller pair provides the material web 5 with a longitudinal strip 16 to form a packaging pocket 11. Optionally, a cold-sealing 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.

[0118] Figure 13 schematically shows the sealing and separating device 180 / 190. The V- or U-shaped material web 5 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 opposing jaws transverse to the conveying direction F, which can be pressed against each other to form a transverse strip 15 sealing a packaging pocket 11. The separating device 190 comprises at least one cutting edge, in particular a scissor-like or guillotine-like edge, or alternatively a plurality of cutting-edge teeth for separating a packaging pocket 11 from the web-shaped starting material 1.At least one jaw of the sealing device 180 can be configured with a cutting edge of the separating device 190, so that during a pressing process of the jaws against each other, the packaging pocket 11 is separated from the material web 5 simultaneously with the sealing of the packaging pocket 11 along a transverse strip 15. Figure 14 shows a schematic representation of a feeding device 150 with a measuring device having an optical sensor in the form of a camera 158. Figure 15 shows a perspective representation of a feeding 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 is to be understood as an exemplary sensor within the scope of the present disclosure.

[0119] The camera 158 is mounted on the frame of the loading device 150. To prevent 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 oriented essentially in the direction of the loading opening 151 according to the conveying direction F. The viewing direction of the camera 158 is oriented such that it looks into the receiving cavity of a material web extending in the region of the loading device 150.

[0120] It may be preferred that the camera 158 captures an image area that includes a reference area along an inner edge of the loading opening 151, in particular along the guide plate 144, the baffle 156, or the bend 157. If the camera 158 forms part of a position sensor, the system 100 detects any 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.

[0121] In the schematic representation according to Figure 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 article 21, which prevails as a result of deformations of the material web 5, can be known in advance or 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 captures the distance from a rear edge of the shipping article 21 in the conveying direction F to the reference plane. The measuring device can thus determine the piece length SL of the shipping article. 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.

[0122] A measuring cycle can transmit a signal to the sensor provided for length measurement (here: the camera 158) with the aid of a computer, for example a PLC, arithmetic unit, or similar central machine control unit. The sensor then detects the shipping item 21. For example, the camera 158 can take an image and subdivide the image into a plurality 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 pocket 11 to be formed, as well as a second distance in the trailing section of the shipping item 21, possibly corresponding to the distance c, can be predetermined for the computer.The computer can then determine a feed rate along which the conveyor 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 pocket 11 to be formed in the web longitudinal direction L. The overall dimension can, if necessary, be compared by the computer with at least one minimum and / or maximum threshold value in order to detect any shipping items 21 with an impermissible length.

[0123] Alternatively, a piece dimension, such as a piece height SH of a shipping article 21, in particular of a particularly narrow shipping article 21, can be determined by a preferably optical sensor of the measuring device based on the reflection behavior on an inner side (or outer side) of the material web 5 in the region of the loading opening 151.

[0124] 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 and is designed to detect when a user has inserted a body part, in particular a hand or an arm, into the loading opening 151 or through the loading opening 151 into the interior 159 of the loading device 150. The light grid 149 essentially covers the entire area spanned by the loading opening 151 within the frame 155. If the light grid 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.

[0125] The system 100 also includes a marking device 160, which is arranged here, by way of example, in the interior 159 of the feeding device 150. The marking device 160 includes a driver 161 for pressing labels, for example, of shipping items, against an outer side of the material web 5 in the region of the feeding device 150. The system 100 can have a scanner or the like to identify the shipping items 21 fed into the feeding device 150 and to cause the marking device 160 to provide a corresponding label for the packaging pocket 11 of the identified shipping item 21.

[0126] Figure 17 shows a side view of a shipping bag or packaging bag 11. The packaging bag 11 is sealed by transverse stripes 15 and, opposite the bag base, by a longitudinal stripe 16. Inside the packaging bag 11 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 the piece length SL, the predetermined distance c, and the second distance d. Figures 18 and 19 show other views of the packaging bag 11 shown in Figure 17.

[0127] The features disclosed in the above description, the figures and the claims can be important both individually and in any combination for the realization of the invention in the various embodiments.

[0128] LIST OF REFERENCE SYMBOLS

[0129] 1 web-shaped starting material

[0130] 2 Material web supply

[0131] 3 grooved material web

[0132] 5 Material web with U-shaped cross-section

[0133] 6 Longitudinal edge

[0134] 7 pocket base

[0135] 8 wings

[0136] 9 Receiving cavity

[0137] 11 packaging bag

[0138] 15 horizontal stripes

[0139] 16 longitudinal stripes

[0140] 21 shipping items

[0141] 100, 200 systems

[0142] 105, 205 creasing element

[0143] 106, 206 Counter bearing roller

[0144] 107, 108, 207, 208 grooving disc

[0145] 109, 209 compression spring

[0146] 110, 210 feed device

[0147] 111, 211 driven conveyor roller

[0148] 112, 212 roller conveyors

[0149] 115, 215 dancers (supporting roller, idler roller)

[0150] 116, 216 booms

[0151] 120, 220 pulley

[0152] 123 guide plate

[0153] 125 straps

[0154] 126, 127, 128, 129 Belt pulleys

[0155] 130, 230 forming device

[0156] 131, 132, 133, 231, 232, 233 folding roller

[0157] 135, 235 rolling disc

[0158] 136, 236 Command Staff

[0159] 139 Entrance area

[0160] 140, 240 guide surface

[0161] 141, 241 Counter bearing roller

[0162] 142, 242 Counter bearing roller

[0163] 145, 245 Counter bearing roller 146, 246 Guide plate

[0164] 149 light grids

[0165] 150, 250 feeding device

[0166] 15L 251 loading opening

[0167] 153 Introductory section

[0168] 154 transfer section

[0169] 155, 255 frames

[0170] 156, 256 baffle

[0171] 157, 257 bend

[0172] 158, 258 Camera

[0173] 159, 259 inside

[0174] 160, 260 marking device

[0175] 161, 261 driver

[0176] 170, 270 conveyor device

[0177] 171, 172, 271, 272 conveyor roller

[0178] 173 ring projection

[0179] 174 ring groove

[0180] 180, 280 sealing device

[0181] 190, 290 separating device

[0182] 200 guidance system

[0183] 201 channel

[0184] 210, 211 lower guide element

[0185] 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

[0186] 1 Forming length q clear length

[0187] SB piece width

[0188] SL piece length

[0189] SH piece height

[0190] L Web longitudinal direction B Web width direction

[0191] E Feeding direction

[0192] F Conveying direction

[0193] U Deflection axis V Vertical direction

[0194] W roller axis

[0195] X axis distance

[0196] Y envelope distance

Claims

REQUIREMENTS 1. System (100, 200) for converting a web-shaped starting material (1) defining a web longitudinal direction (L) and extending between two longitudinal edges (6) opposite each other in the web width direction (B), in particular made of paper or cardboard, into packaging pockets (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 and a receiving cavity (9) extending in the web longitudinal direction (L), wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133), for introducing two wings (8) projecting from a pocket base (7) into the web-shaped starting material (1) transverse to the longitudinal direction (L), in particular centrally, preferably in the width direction (B), between the opposite longitudinal edges (6),is capable of being 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, in particular the deflection roller (120, 220), has a circumferential contact area of ​​at least 10°, in particular at least 45°. 0 , preferably at least 60°, 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, with respect to a deflection axis (U) defined by the deflection can be brought into radial contact with the web-shaped starting material (i) on the outside, wherein the retaining belt (125) can be applied to the web-shaped starting material (1) at least in a part, in particular in at least a large part, of the circumferential contact area. System (100, 200) for converting a web-shaped starting material (1) defining a web longitudinal direction (L) and extending 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 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 and a receiving cavity (9) extending in the web longitudinal direction (L),wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133), which can be brought into contact with the web-shaped starting material (1) transversely to the web longitudinal direction (L), in particular centrally, preferably in the web width direction (B), between the opposing longitudinal edges (6), for introducing two wings (8) projecting from a pocket base (7) into the web-shaped starting material (1), 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 above the forming device (130, 230) in relation to a vertical direction (V) and / or the deflection involves at least one turn of the web-shaped starting material. between the infeed device (110, 220) and the forming device (130, 230). - System according to claim 3, characterized in that the deflection relative to the vertical direction (V) is arranged 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) that is oriented downwards in relation to a vertical direction (V). . System (100, 200) for converting a web-shaped starting material (1) that defines a web longitudinal direction (L) 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 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 and a receiving cavity (9) extending in the web longitudinal direction (L), wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133), which can be brought into contact with the material web for introducing two wings (8) projecting from a pocket base (7) into the web-shaped starting material (1) transversely to the web longitudinal direction (L), in particular centrally, preferably in the web width direction (B), between the opposing longitudinal edges (6), wherein the system includes 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) comprises, characterized in that the forming device (130,230) comprises at least two folding devices arranged one behind the other in the conveying direction (F), such as slide rail sections, rigid sliding discs, mandrels or folding rollers (131, 132, 133, 231, 232, 233), wherein the forming device (130, 230) and / or a feeding device (150, 250) defines 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 oriented transversely, in particular perpendicularly, to the conveying direction (F) along the guide surface (140, 240) and / or is arranged offset from the guide surface (140, 240), wherein at least one first folding means, such as a first folding roller (131, 231), is 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 defined by 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.

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

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

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) measures 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 a reversal 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 a deflection contact area of ​​the deflecting means, in particular the deflecting roller (120), facing away from the guide surface (140, 240), is at least 10 mm, in particular at least 40 mm, and / or measures no more than 300 mm, in particular no 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 to a feed opening (151, 251), is no greater than 120 cm, in particular no greater than 100 cm, preferably no greater than 80 cm, and / or is no greater than twice the initial width (b) of the web-shaped starting material web (1), in particular no 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 that tapers in the conveying direction (F).System (100, 200) for converting a web-shaped starting material (1) defining a web longitudinal direction (L) and extending 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 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 and a receiving cavity (9) extending in the web longitudinal direction (L), wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two wings (8) projecting from a pocket base (7) into the web-shaped starting material (1) transverse to the web longitudinal direction (L), in particular in the middle,. preferably in the web width direction (B), between the opposing longitudinal edges (6), the system comprises a deflection, such as a deflection roller (120, 220), for guiding the web-shaped input material (1) from the feed 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 means axis that is aligned in the web width direction (B), wherein the clamping means can be brought into contact with the web-shaped input material (1) along the clamping means axis in order to force the web-shaped input material (1) into an evasive movement (a) transverse to the conveying direction (F) and transverse to the web width direction (B), wherein the clamping means in the conveying direction (F) between the infeed 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 pre-tensioned, in particular by a mechanical spring, and / or has a clamping mass, wherein the clamping means is preferably free of compressed air. System according to claim 14 or 15, characterized in that the clamping means is movably mounted on the feed device (110, 210), in particular movable 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 contact transmitter, and the feed device (110, 210) is designed and configured to apply a feed rate to the web-shaped starting material depending on the position sensor, wherein in particular the feed device (110, 210), Depending on a threshold value detection, such as the detection of an initial position, a drive is switched on or off. System (100, 200) for converting a web-shaped starting material (1) defining a web longitudinal direction (L) and extending 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 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 and a receiving cavity (9) extending in the web longitudinal direction (L), wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133),the system is capable of bringing two wings (8) projecting from a pocket base (7) into contact with the web-shaped starting material (1) transversely to the web longitudinal direction (L), in particular centrally, preferably in the web width direction (B), between the opposing longitudinal edges (6), 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 center groove, preferably two or three longitudinal center grooves, into the web-shaped starting material (1), and that the at least one creasing element (105, 205) is preferably Teflon-coated,comprises a stationary knife or at least a rotatably mounted grooving disc (107, 108, 207, 208). - System (ioo, 200) for converting a web-shaped starting material (1) defining a web longitudinal direction (L) and extending 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 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 and a receiving cavity (9) extending in the web longitudinal direction (L), wherein the forming device (130, 230) comprises at least one folding means, such as a folding roller (131, 132, 133), which is used to introduce two wings (8) projecting from a pocket base (7) into the web-shaped starting material (1) transverse to the web longitudinal direction (L), in particular in the middle, preferably in the web width direction (B),between the opposing longitudinal edges (6), in 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 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 center groove, preferably two or three longitudinal center grooves, into the web-shaped starting material (1), and that the at least one creasing element (105, 205) is spring-loaded and / or mounted without compressed air. System according to claim 19, characterized in that the at least one groove element (105, 205) presses against a groove counter-bearing, such as a counter-bearing roller (106, 206), wherein the groove counter-bearing is preferably separate, 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 conveying device (170, 270) for conveying the web-shaped starting material (1) formed in the forming device (130, 230), wherein the conveying device (170, 270) comprises a pair of cooperating conveying 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 conveying rollers (171, 172, 271, 272) comprise a first conveying roller (171, 271) with at least one convex circumferential embossing projection (173, 273) and a second conveying 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 conveying rollers (171, 172, 271, 272) perform a longitudinal sealing and are designed and configured to press two opposing wings (8) of the material web (5) 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 1 bar, preferably at least 1.5 bar, in order to form a longitudinal strip (16) delimiting the packaging pocket (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 goods (21) can be inserted into the receiving cavity (9).

25. System according to claim 24, characterized in that the feeding device (150, 250) comprises two guides adjacent to the feeding opening (151, 251) and opposite each other transversely to the conveying direction (F) for opposing wings (8), in particular longitudinal edges (6), of 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 cylinders, wherein the guides are arranged upstream in the conveying direction (F) and / or in the area of ​​the feeding opening (151, 251).

26. System according to claim 24 or 25, characterized in that the guide comprises at least one pair of guide rollers designed and configured to introduce at least one longitudinal groove, in particular a longitudinal edge groove, into one of the wings (8), in particular at its longitudinal edge (6).

27. System according to claim 26, characterized in that the at least one pair of guide rollers is connected, in particular by friction, to a drive, in particular a conveying drive (175, 275) of the conveying device (170, 270).

28. System according to one of the preceding claims, characterized in that the system further comprises at least one The 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 pocket (11) from the starting material web (1) along a transverse strip (15) comprises.

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