Packaging material production machine and system consisting of a packaging material production machine and a packaging material supply

Abstract

The invention relates to a packaging material production machine for producing a packaging material product, comprising a feed line for introducing packaging material made in particular of a packaging material web, which is wound in order to form a roll, from the roll inner face thereof, a shaping device which is arranged downstream of the feed line in the conveyor direction for shaping the packaging material web into a voluminous cushioning packaging material product, and a dispensing device for dispensing the packaging material product, wherein the total length of the packaging material production machine in the conveyor direction of the packaging material web is less than 500 mm, in particular less than 450 mm or less than 400 mm, and / or a production distance which begins at a first deflection of the packaging material web and runs through the packaging material production machine to a downstream shaping process of the packaging material web in order to form the packaging material product in the conveyor direction of the packaging material web is less than 400 mm, in particular less than 360 mm or less than 340 mm.

Description

[0001] Packaging material production machine and system comprising a packaging material production machine and a packaging material supply

[0002] The present invention relates to a packaging material production machine for producing a packaging material product from a packaging material supply comprising at least one packaging material web wound into a roll, in particular made of paper, cardboard, or the like, in particular waste paper and / or 100% recyclable waste paper without chemical ingredients. Furthermore, the present invention relates to a system comprising a generic packaging material production machine and a packaging material supply comprising a packaging material web wound into a roll, in particular made of paper, cardboard, or the like, which can be pulled off from the inside of the roll.

[0003] Generic packaging material manufacturing machines generally comprise a feed for feeding or introducing the packaging material into a forming device, which serves to transform the web-shaped packaging material into a voluminous, cushioning packaging material product, and a subsequent discharge and / or cutting device.

[0004] Such a packaging material manufacturing machine is known from DE 102019 135629 A1, which comprises a multi-part housing, wherein a first housing part contains the feed and a funnel-like housing structure for the concentrated feeding of the packaging material to the further housing part arranged downstream, in which the forming device is arranged, which is designed to form the packaging material web arriving as a tubular packaging material web intermediate product into a particularly three-dimensional, voluminous and cushioning packaging material product by means of an embossing and / or punching device for introducing embossing and / or perforations into the material web. Furthermore, the delivery and / or cutting device for cutting packaging material products of the desired length from the web-shaped or tubular packaging material strand is housed in the rear housing part.

[0005] Given the increasing pressure on space and the desire to produce well-cushioned packaging material products in ever-tighter spaces, one challenge is to produce packaging material products reliably and quickly in a small space, particularly over short distances, without web breaks or paper jams. DE 10 2019 135 629 A1 does offer reliable feeding into the machine, avoiding web breaks and paper jams, via an upstream deflection roller with two lateral conical end sections that ensure that the packaging material web is flexibly fed into the machine from a variety of directions and in a centered manner. However, it has been found that this type of design, while very helpful in preventing web breaks and paper jams, does not meet the increasing demands of the space issue.

[0006] A further object of the present invention is to overcome the disadvantages of the prior art, in particular to provide a more compact and / or less space-consuming packaging material manufacturing machine which reliably produces packaging material products, in particular while avoiding paper jams or web breaks.

[0007] According to the invention, a packaging material manufacturing machine is provided for producing a packaging material product. A packaging material product can, for example, have a tubular, spiral, and / or cushion-like shape and / or a gathered strand shape.

[0008] The packaging material manufacturing machine according to the invention comprises a

[0009] Feeder for inserting packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll into the packaging material production machine. The feeder can have a deflection roller oriented transversely, in particular perpendicularly, to the insertion direction of the packaging material web and, if appropriate, a guide wall arranged at a lateral end, in particular the front side, of the deflection roller for deflecting the packaging material web in the direction of the deflection roller. The deflection roller can be idle. For example, the deflection roller is not driven by a motor or similar drive component, but rotates exclusively as a result of frictional contact with the packaging material deflected by the deflection roller.For example, a particularly low-friction bearing arrangement can be provided for the deflection roller, for example, by selecting a low-friction material pairing, by lubrication, and / or by generating a lubricating film, particularly with full lubrication. It is also possible for the deflection roller to be driven and / or used to convey and pull the packaging material web into the packaging material production machine. The deflection roller can also be rigidly arranged without any degree of freedom of rotation and, for example, be realized with a particularly smooth surface, which significantly reduces frictional contact with the packaging material web to be deflected.

[0010] The packaging material web can be made from paper, such as recycled paper, in particular waste 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% 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 transverse to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g. A standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used to determine the tensile strength or the tensile strength index.Additionally, or alternatively, a recycled paper or waste paper property can be characterized by its so-called burst resistance. A material in this sense is recycled paper with a burst index of 3.0 kPa*m or less. A 2 / g, preferably with a burst index of 0.8 kPa*m A 2 / g to 2.5 kPa*m A 2 / g. The DIN EN ISO 2758 standard is used to determine the 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 starting packaging material is in the form of a roll of material web, which has a cylindrical basic shape and is placed on a support at the end so that the roll can be pulled out from the inside of the roll.

[0011] The packaging material production machine according to the invention further comprises a forming device arranged downstream of the feed in the conveying direction for forming a packaging material web into a voluminous, cushioning packaging material product, in particular with at least one crumple cavity. The forming device generally serves to form a flat packaging material web or a tubular packaging material strand into a three-dimensional, cushioning and voluminous packaging material product.

[0012] Furthermore, the packaging material production machine comprises a dispensing device for dispensing the finished packaging material product. The dispensing device can be designed as a tear-off and / or cutting device capable of producing packaging material products, in particular of a desired length, or which can be used by an operator to tear a packaging product of a specific length.

[0013] The total length of the packaging material production machine in the conveying direction of the packaging material web is less than 500 mm, in particular less than 450 mm or less than 400 mm. Alternatively or additionally, the production distance from a first deflection of the packaging material web through the packaging material production machine, in particular through the feed, to a downstream forming of the packaging material web into the packaging material product in the conveying direction of the packaging material web is less than 400 mm, in particular less than 360 mm or less than 340 mm.The production distance can be understood as the distance that begins with the initial contact of the packaging material web with the packaging material production machine, in particular the feeder where a deflection takes place, and ends at the point at which the packaging material product is completely formed, in particular has assumed its final shape. This can be upstream of the discharge device, as the packaging material production machine can be designed so that no further forming takes place downstream of the forming device up to the discharge and / or cutting device. The distance between the forming device and a discharge opening of the discharge device, at which the packaging material product ultimately leaves the packaging material production machine, is less than 100 mm, in particular less than 90 mm, 80 mm, or less than 70 mm.

[0014] One of the main motivations for creating the packaging material production machine according to the invention was to create a machine that was as compact and / or small as possible, with which packaging material products of conventional dimensions and / or high quality in terms of cushioning properties could be produced. Using the design according to the invention, the inventors of the present invention have succeeded in creating a production machine with a reduced packaging material web guide and a restriction to the essential components necessary for packaging material product production, without having to accept any loss in quality, particularly in the cushioning properties, of the finished packaging material products.

[0015] According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine for producing a packaging material product is provided.

[0016] The packaging material production machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll into the packaging material production machine. The feed can have a deflection roller oriented transversely, in particular perpendicularly, to the insertion direction of the packaging material web and, if appropriate, a guide wall arranged at a lateral end, in particular the front side, of the deflection roller for deflecting the packaging material web in the direction of the deflection roller. The deflection roller can be idle. For example, the deflection roller is not driven by a motor or similar drive component, but rotates exclusively as a result of frictional contact with the packaging material deflected by the deflection roller.For example, a particularly low-friction bearing arrangement can be provided for the deflection roller, for example, by selecting a low-friction material pairing, by lubrication, and / or by generating a lubricating film, particularly with full lubrication. It is also possible for the deflection roller to be driven and / or used to convey and pull the packaging material web into the packaging material production machine. The deflection roller can also be rigidly arranged without any degree of freedom of rotation and, for example, be realized with a particularly smooth surface, which significantly reduces frictional contact with the packaging material web to be deflected.

[0017] The packaging material web can be made from paper, such as recycled paper, in particular waste 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% 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 transverse to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g. A standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used to determine the tensile strength or the tensile strength index.Additionally, or alternatively, a recycled paper or waste paper property can be characterized by its so-called burst resistance. A material in this sense is recycled paper with a burst index of 3.0 kPa*m or less. A 2 / g, preferably with a burst index of 0.8 kPa*m A 2 / g to 2.5 kPa*m A 2 / g. The DIN EN ISO 2758 standard is used to determine the 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 starting packaging material is in the form of a roll of material web, which has a cylindrical basic shape and is placed on a support at the end so that the roll can be pulled out from the inside of the roll.

[0018] The packaging material production machine according to the invention further comprises a forming device arranged downstream of the feed in the conveying direction for forming a packaging material web into a voluminous, cushioning packaging material product, in particular with at least one crumple cavity. The forming device generally serves to form a flat packaging material web or a tubular packaging material strand into a three-dimensional, cushioning and voluminous packaging material product.

[0019] Furthermore, the packaging material production machine comprises a dispensing device for dispensing the finished packaging material product. The dispensing device can be designed as a tear-off and / or cutting device capable of producing packaging material products, in particular of a desired length, or which can be used by an operator to tear a packaging product of a specific length.

[0020] According to a further aspect of the invention, the packaging material production machine comprises a cover part made from a single piece and enclosing the forming device and the dispensing device. Due to the one-piece design of the cover part, a single injection molding system is sufficient compared to the prior art, provided the cover part is made of plastic. Furthermore, assembly is significantly simplified. The enclosing cover part can be slipped over or placed on the functional components and shields them from the environment. The particularly simple design of the housing cover part was identified as one of the keys to the compactness of the packaging material production machine according to the invention.

[0021] In one exemplary embodiment, the cover part is made of plastic, particularly by injection molding, or of a fiber composite material. This allows the cover part to be easily and cost-effectively manufactured in various shapes and geometries. Practically equivalent to the primary forming injection molding process are other primary and / or forming manufacturing processes for processing plastics.

[0022] In a further exemplary embodiment of the packaging material production machine according to the invention, the lid part has a funnel section which tapers in cross-section from the feed in the direction of the forming device, and a hood section made in one piece with the funnel cross-section. The funnel section is essentially responsible for the transverse compression of the flat packaging material web, which is wide compared to the narrowest point of the funnel section, in order to feed an intermediate packaging material web with a significantly reduced width to the forming device. For example, the lid part is directly connected to the feed. The hood section can enclose the forming device and the discharge device. The hood section can mainly be responsible for the forming and discharge orto accommodate cutting-to-length components of the packaging material production machine and can therefore be dimensioned larger than the hopper section transversely, in particular perpendicularly, preferably in the vertical direction, to the paper web conveyance. For example, the lid part can be designed and in particular shaped to actively support the packaging material product production. For example, the hopper section can be shaped such that the packaging material web, after passing through the feed, comes into contact with an inner housing wall of the hopper section in such a way that the packaging material web rolls up or folds to form at least one, in particular two, lateral crumple cavities. Alternatively, the hopper section can also ensure that the packaging material web is compressed transversely to its longitudinal extent.According to an exemplary development of the packaging material production machine according to the invention, the machine comprises a base part, in particular a base plate, which can be connected to the cover part and is designed to support the feed, the forming device, and the dispensing device. The feed, the forming device, and the dispensing device can, in particular, be detachably fastened to the base part, movably mounted thereon, and / or supported thereby. This preferred division of the housing into a base part supporting the components and a cover part enclosing the components makes it possible to design the assembly of the packaging material production machine particularly efficiently. The base plate, including the functional component feed, forming device, and cutting device or dispensing device, can be provided preassembled.

[0023] According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine for producing a packaging product is provided.

[0024] The packaging material production machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll into the packaging material production machine. The feed can have a deflection roller oriented transversely, in particular perpendicularly, to the insertion direction of the packaging material web and, if appropriate, a guide wall arranged at a lateral end, in particular the front side, of the deflection roller for deflecting the packaging material web in the direction of the deflection roller. The deflection roller can be idle. For example, the deflection roller is not driven by a motor or similar drive component, but rotates exclusively as a result of frictional contact with the packaging material deflected by the deflection roller.For example, a particularly low-friction bearing arrangement can be provided for the deflection roller, for example, by selecting a low-friction material pairing, by lubrication, and / or by generating a lubricating film, particularly with full lubrication. It is also possible for the deflection roller to be driven and / or used to convey and pull the packaging material web into the packaging material production machine. The deflection roller can also be rigidly arranged without any degree of freedom of rotation and, for example, be realized with a particularly smooth surface, which significantly reduces frictional contact with the packaging material web to be deflected.

[0025] The packaging material web can be made from paper, such as recycled paper, in particular waste 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% 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 transverse to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g. A standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used to determine the tensile strength or the tensile strength index.Additionally, or alternatively, a recycled paper or waste paper property can be characterized by its so-called burst resistance. A material in this sense is recycled paper with a burst index of 3.0 kPa*m or less. A 2 / g, preferably with a burst index of 0.8 kPa*m A 2 / g to 2.5 kPa*m A 2 / g. The DIN EN ISO 2758 standard is used to determine the 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 starting packaging material is in the form of a roll of material web, which has a cylindrical basic shape and is placed on a support at the end so that the roll can be pulled out from the inside of the roll.

[0026] The packaging material production machine according to the invention further comprises a forming device arranged downstream of the feed in the conveying direction for forming a packaging material web into a voluminous, cushioning packaging material product, in particular with at least one crumple cavity. The forming device generally serves to form a flat packaging material web or a tubular packaging material strand into a three-dimensional, cushioning and voluminous packaging material product.

[0027] Furthermore, the packaging material production machine comprises a dispensing device for dispensing the finished packaging material product. The dispensing device can be designed as a tear-off and / or cutting device capable of producing packaging material products, in particular of a desired length, or which can be used by an operator to tear a packaging product of a specific length.

[0028] According to a further aspect of the invention, the packaging material production machine according to the invention comprises a housing that accommodates, encloses, or fits over the forming device and the dispensing device, as well as a power supply arranged in the housing. Because the power supply is integrated within the housing of the packaging material production machine, the packaging material production machine can be used particularly flexibly and, in particular due to its compactness, can be easily repositioned. In order to put a packaging material production machine according to the invention into operation, it is therefore only necessary to connect a power plug to the packaging material production machine. All components required for the operation of the packaging material production machine, in particular those required for its further power supply, are present in the packaging material production machine, in particular housed in its housing.

[0029] According to an exemplary embodiment, the housing has a connection for connecting the power supply to a power plug. The electronics interface ensures a particularly simple electrical power supply.

[0030] In another exemplary embodiment of the packaging material production machine according to the invention, it comprises a motor controller with an overload circuit, such as an overcurrent and / or overtemperature circuit, and an overload circuit associated with the power supply, such as an overcurrent and / or overtemperature circuit. A shutdown threshold of the power supply can be higher than a shutdown threshold of the motor controller. In this respect, the overload circuit of the motor controller is activated earlier than the overload circuit of the power supply.

[0031] According to a further exemplary embodiment of the present invention, the packaging material production machine further comprises a motor controller with an overload circuit, such as an overcurrent and / or overtemperature circuit, which prevents operation of the packaging material production machine, and a safety circuit assigned to the motor controller such that, in the event of an overload circuit being triggered, the motor controller can only be reactivated when a manual release, in particular, is activated. In this way, it is possible to design the motor controller or its overload circuit in a quite rudimentary manner, since active activation or release of the overload circuit is necessary to resume operation of the packaging material production machine according to the invention.

[0032] According to a further aspect of the present invention, which is combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine for producing a packaging material product is provided. A packaging material product can, for example, have a tubular, screw-like, and / or cushion-like shape.

[0033] The packaging material production machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll, with a deflection roller oriented transversely, in particular perpendicularly, to the direction of introduction of the packaging material web into the packaging material production machine, and a guide wall arranged at a lateral end, in particular the end face, of the deflection roller for deflecting the packaging material web toward the deflection roller. The deflection roller can be idle. For example, the deflection roller is not driven by a motor or a similar drive component, but rotates exclusively as a result of frictional contact with the packaging material deflected by the deflection roller.For example, a particularly low-friction bearing arrangement can be provided for the deflection roller, for example, by selecting a low-friction material pairing, by lubrication, and / or by generating a lubricating film, particularly with full lubrication. It is also possible for the deflection roller to be driven and / or used to convey and pull the packaging material web into the packaging material production machine. The deflection roller can also be rigidly arranged without any degree of freedom of rotation and, for example, be realized with a particularly smooth surface, which significantly reduces frictional contact with the packaging material web to be deflected.

[0034] The guide wall arranged at the lateral ends of the deflection roller, in particular one guide wall arranged at each lateral end of the deflection roller, has the advantage that an incoming packaging material web can be fed better or more precisely into the packaging material production machine. By means of the targeted guidance or deflection by means of the guide wall in the direction of the deflection roller, which in turn is responsible for the targeted further guidance of the packaging material web into the interior of the packaging material production machine, web breaks can be prevented. In particular, collisions with sharp edges, transitions or other housing parts are avoided. For example, the guide wall is shaped to ensure the most continuous or even feed of the packaging material web towards the deflection roller is ensured without providing excessive deflections.

[0035] According to a further aspect of the present invention, which can be combined with the previous aspects and exemplary embodiments, a packaging material and production machine for producing a packaging material product is provided. The packaging material production machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll, with a deflection roller oriented transversely, in particular perpendicularly, to the direction of introduction of the packaging material web into the packaging material production machine.

[0036] According to a further aspect of the invention, the deflection roller has a lateral end section that is covered by a guide wall in the conveying direction of the packaging material web. In other words, the packaging material production machine comprises a guide wall that is assigned to one, in particular both, lateral end sections of the deflection roller such that the lateral end section is covered, concealed, or spanned by the guide wall. The covered lateral end section can comprise a range of 1% to 10% of the longitudinal extent of the deflection roller. Furthermore, the guide wall can be curved, in particular convexly curved, particularly in the region in which it covers the lateral end section, so that the packaging material web is fed to the deflection roller as evenly as possible, avoiding any sharp, abrupt deflection.

[0037] According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine for producing a packaging material product is provided.

[0038] The packaging material manufacturing machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll with a deflection roller oriented transversely, in particular perpendicularly, to the direction of introduction of the packaging material web into the packaging material manufacturing machine.

[0039] The deflection roller can be idle. For example, the deflection roller is not driven by a motor or similar drive component, but rotates solely as a result of frictional contact with the packaging material deflected by the deflection roller. For example, a particularly low-friction bearing can be provided for the deflection roller, for example, by selecting a low-friction material pairing, by lubrication, and / or by generating a lubricating film, particularly in the case of full lubrication. It is also possible for the deflection roller to be driven and / or used to convey and pull the packaging material web into the packaging material production machine.The deflection roller can also be arranged rigidly without a degree of freedom of movement and rotation and can be realized, for example, by a particularly smooth surface, which particularly reduces the frictional contact with the packaging material web to be deflected.

[0040] According to a further aspect of the invention, the packaging material production machine comprises a forming device arranged downstream of the deflection roller in the conveying direction for forming the packaging material web into a voluminous, cushioning packaging material product, in particular with at least one crumple cavity. The forming device generally serves to form a flat packaging material web or a tubular packaging material strand into a three-dimensional, cushioning and voluminous packaging material product.

[0041] In this case, the orientation of a conveyor path from the deflection roller to the forming device is inclined relative to a discharge direction along which the packaging material product leaves the packaging material machine, downstream of the forming device. For example, the angle of inclination is up to 10°, in particular up to 7° or up to 5°. The inclination of the conveyor path has a beneficial effect on the functional reliability of the packaging material production machine. It has been discovered that the inclination of the conveyor path from the deflection roller to the forming device, on the one hand, promotes continuous forming without excessively abrupt forming angles, and on the other hand, still allows a certain pre-tension of the packaging material web by means of the forming device against the forming roller acting as a counter-bearing, which further promotes the targeted and desired conveyance of the packaging material web.According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine for producing a packaging material product is provided.

[0042] The packaging material manufacturing machine according to the invention comprises a feed for introducing packaging material, in particular from a packaging material web wound into a roll, from the inside of the roll with a deflection roller oriented transversely, in particular perpendicularly, to the direction of introduction of the packaging material web into the packaging material manufacturing machine.

[0043] According to a further aspect of the invention, the packaging material production machine comprises a guide device arranged downstream of the deflection roller, which provides a guide path for the packaging material web that is reduced compared to the length of the deflection roller in its extension direction and which is arranged at a distance from the deflection roller in the conveying direction of the packaging material web of no more than twice the deflection roller diameter. The downstream guide device prevents unwanted buckling of the packaging material web, particularly in the interior region of the packaging material production machine, where, for example, a forming device for forming the packaging material web into a voluminous, cushioning packaging material product can be arranged, so that tearing and the risk of paper jams are reduced, in particular avoided.Because the guide device is arranged very close to the deflection roller, the packaging material can reliably leave the deflection roller and reach the guide device and be advantageously guided by it.

[0044] The present invention further relates to a system comprising a packaging material manufacturing machine according to one of the previously described aspects and / or exemplary embodiments and a packaging material web wound into a roll, wherein the packaging material manufacturing machine is designed to pull packaging material from the inside of the packaging material web roll.

[0045] Furthermore, the present invention relates to a method for operating a packaging material manufacturing machine according to one of the preceding claims and / or a system according to the invention.

[0046] Preferred embodiments are specified in the subclaims.

[0047] 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:

[0048] Figure 1 is a perspective view of an exemplary embodiment of a packaging material manufacturing machine according to the invention;

[0049] Figure 2 is a plan view of the packaging material manufacturing machine of Figure 1;

[0050] Figure 3 is a side view of the packaging material production machine from the

[0051] Figures 1 and 2;

[0052] Figure 4 is a front view of another exemplary embodiment of a packaging material manufacturing machine according to the invention

[0053] Figure 5 is a further front view of a further exemplary embodiment of a packaging material manufacturing machine according to the invention;

[0054] Figure 6 is a front view of another exemplary embodiment of a packaging material manufacturing machine according to the invention;

[0055] Figure ? a perspective interior view of the

[0056] Packaging material manufacturing machine from Figures 1 to 3; Figure 8 is a perspective interior view of a further exemplary embodiment of a packaging material manufacturing machine according to the invention.

[0057] packaging material manufacturing machine;

[0058] Figure 9 shows another perspective view of the

[0059] Packaging material manufacturing machine from Figure 8;

[0060] Figure 10 is another perspective view of the

[0061] Packaging material manufacturing machine from Figure 8;

[0062] Figure 11 is a schematic plan view of the interior of another exemplary embodiment of a device according to the invention

[0063] packaging material manufacturing machine; and

[0064] Figure 12 is a schematic diagram of the interior of another exemplary embodiment of a packaging material manufacturing machine according to the invention.

[0065] In the following description of exemplary embodiments of the present invention, a packaging material manufacturing machine according to the invention is generally designated by reference numeral 1. In the exemplary embodiments illustrated, it can be assumed that the packaging material is paper that has a web shape and is wound into a roll and is drawn off from the inside of the roll by the packaging material manufacturing machine.

[0066] Figure 1 shows a packaging material production machine 1 according to the invention, according to an exemplary embodiment, in a perspective view obliquely from the front, from above. References to "front" and "rear" refer to the packaging material web conveyance, with the packaging material entering the packaging material production machine at the rear and exiting it again at the front.The packaging material production machine 1 essentially comprises the following main components: a feed 3 for introducing packaging material from a web-shaped packaging material supply (not shown), with a deflection roller 5 for the targeted introduction of the packaging material into the interior of the packaging material production machine 1; a feed hopper 7 arranged downstream of the feed in the conveying direction, which laterally limits the guide path of the packaging material web and specifically feeds it to a downstream forming device 9 (Figure 7); and a discharge and / or cutting device 11 arranged downstream of the forming device 9, from which a produced packaging material product can be removed, which has, for example, tear-off teeth 13 for tearing off a packaging material product strand.

[0067] The packaging material production machine 1 further comprises a housing 15 which largely encloses the components and consists of a base part 17 (Figure 7), which is made in particular from a single piece, and a cover part 19, which is made from a single piece and which are fastened to one another. According to the exemplary embodiment in Figure 1, an electronics station 21 is arranged in the cover part 19 with electronic connections 23, 25, in particular a power connection for a power plug, in order to supply power to a power supply unit accommodated within the housing 15. The feed 3 further comprises a guide wall 31, 33 arranged at each lateral end 27, 29 of the deflection roller 5, which is designed and shaped to deflect the packaging material web in the direction of the deflection roller 5 and thus into the interior of the packaging material production machine 1.

[0068] The top view of Figure 2 essentially shows the compactness of the packaging material production machine and its housing contour. The packaging material production machine has its widest area in the area of ​​the feed 3 and, from there, tapers increasingly towards the discharge device 11. Furthermore, Figure 2 shows that the guide wall 33 protrudes beyond the extent of the deflection roller 5, counter to the conveying direction of the packaging material web. Furthermore, the guide wall 31, 33 comprises guide surfaces 35, 37, which are convex in the direction of the deflection roller 5 and are shaped for the continuous feeding and deflection of the packaging material web towards the deflection roller 5 and thus into the interior of the packaging material production machine 1.

[0069] Figure 3 shows a side view of the packaging material production machine 1. From this, it can essentially be seen that the guide wall 31, 33 conceals the deflection roller 5. The latter is therefore arranged in the slipstream of the deflection roller 31, 33. Furthermore, it can be seen that the guide wall 31, 33 protrudes beyond the roller in the opposite direction to the conveying direction and also protrudes beyond the extent of the deflection roller 5 in a direction transverse to this, in particular in the vertical direction, so that the guide wall can reliably deflect the packaging material web particularly flexibly and independently of the position of the packaging material web to be conveyed. In the exemplary embodiment according to Figures 1-3 and 5-11, the guide 3 comprises a pair of rollers 39, 41 forming the deflection roller 5, which rollers are mounted so as to rotate freely, for example, as indicated by the rotation centers R3g and R41.These can, as can be seen by way of example in Figure 3, be arranged one above the other in the vertical direction or can be arranged in such a way that the lower roller 41 with respect to the vertical direction projects relative to the roller 39 with respect to the conveying direction of the packaging material web.

[0070] Figure 4 shows an exemplary embodiment of a packaging material production machine according to the invention in which the feed 3 has, instead of rotatably mounted rollers, rigid guide surfaces 43, 45 which form a conveying gap 47 between them through which the packaging material web can reach the interior of the packaging material production machine 1.

[0071] Figures 5 and 6 show further exemplary embodiments of packaging material production machines according to the invention, which differ from one another with regard to the feed 3. The difference between the two embodiments lies in the dimensions of the lateral guide walls 31, 33, which are significantly smaller in Figure 6 than in Figure 5. Both embodiments have in common that the guide wall 31, 33 covers a lateral end section of the rollers 39, 41 and, in particular, a bearing gap existing between a lateral housing wall of the packaging material production machine, on which the rollers 39, 41 are mounted, and a lateral end face of the rollers 39, 41. This can prevent packaging material from becoming tangled or lost in the region of the bearing gap.

[0072] Figures 7 to 10 show various designs and views of a packaging material production machine in which the lid part 15 is omitted. This reveals a further essential aspect of the present invention, according to which all functional components of the packaging material production machine 1 are arranged or fastened to the base part 17 and are supported by it. Downstream of the feeder 3 in the conveying direction are lateral boundary walls 49, 51, which serve to additionally guide the packaging material web. Funnel wall sections 53, 55 are again provided downstream in the conveying direction, which, according to Figure 7, are arranged at a distance from the boundary walls 51, 49 in the conveying direction, but can also merge into them or be formed integrally therewith.The hopper wall sections 53, 55 define between them a conveying path which increasingly and in particular continuously tapers or reduces in size in order to finally feed the packaging material to be processed centrally to the forming device 9.

[0073] The forming device 9 has a pair of conveyor wheels 57, 58, one of which is shown in Figure 7. The conveyor wheel 57 is driven by a motor-gear arrangement 59 to actively convey the packaging material and, in particular, to draw it from the packaging material supply. Furthermore, a hopper cover 61 is provided in the area of ​​the hopper wall sections 53, 55, which limits the conveying path upwards opposite the base part 17. The hopper cover 61 can also extend counter to the conveying direction up to approximately the level of the feeder 3.

[0074] The embodiment according to Figure 8 differs from the embodiment according to Figure 7, firstly, with regard to the feeder 3. According to Figure 8, the feeder also has a pair of rollers, wherein the lower roller 41 is offset relative to the upper roller 39, counter to the conveying direction. This is indicated by an angle a spanned between a vertical V and a connecting line A between the rotation axes R39 and R41. Furthermore, the guide wall 31, 33 according to Figure 8 is equipped with a deflection hopper wall section 63, 65, which ensures that packaging material passing laterally past the feeder 3 is nevertheless guided towards the pair of rollers 39, 41.

[0075] Furthermore, for additional narrowing of the conveying path downstream of the feeder and in the immediate vicinity of the feeder 3, a pair of in particular free-running conveyor rollers 67, 69 with a vertical axis of rotation is provided, on which the packaging material is additionally deflected in a concentrated manner towards the center.

[0076] Figure 9 shows a rear view of the embodiment of the packaging material manufacturing machine according to Figure 8 and shows the second conveyor wheel 58 of the conveyor wheel pair of the forming device 9. The discharge device 11 comprises two shaft walls 71, 73 which are substantially perpendicular to the conveying direction and whose leading edges are shaped to form tear-off prongs or teeth 13.

[0077] Figure 10 belongs to the embodiment of the packaging material production machine according to Figures 8 and 9 and shows the rolling of the conveyor wheels 57, 58 of the forming device 9 against each other. Due to the rolling contact, which is indicated by the reference numeral 75, packaging material can be conveyed reliably and constantly through the packaging material production machine and thus packaging material products can be manufactured which can finally be removed via the discharge device 11.

[0078] Figure 11 schematically shows the conveying path, indicated by reference numeral 77, of the packaging material web through the packaging material production machine 1. According to the exemplary embodiment in Figure 11, downstream of the feed 3 and upstream of the hopper wall sections 53, 55 in the conveying direction, a further hopper section is formed from two opposing housing walls 79, 81, which form a narrowed channel section by forming a respective shoulder 83, 85. This ensures a reliable transfer of the packaging material web to the hopper walls 53, 55.

[0079] Figure 12 schematically shows a horizontal configuration of the packaging material production machine 1, in which a horizontal line is indicated by the operating symbol H. As can be seen from Figure 12, the feed 3 is arranged in relation to the remaining components, in particular the forming device 9 and in particular its conveyor wheel 57, 58, such that an angle ß results between the horizontal H and a conveyor path line F indicating the conveying direction. As shown in the figure, the packaging material web is conveyed towards the lower deflection roller and partially deflected by it before the packaging material leaves the roller 41 at a contact end point 87. A connecting line between the contact end point 87 and a center of rotation Rg of the deflection device is at an angle ß in the range of more than 0° to a maximum of 10° relative to the horizontal H.

[0080] Furthermore, and in addition to the aspects and embodiments of the packaging material production machine 1 mentioned above, a tip of the at least one tear-off tooth 13 is arranged to offset inwardly relative to an outer contour of the housing 15. According to the embodiment according to Figure 2, each tear-off tooth 13, including its tip, is arranged flush with the outer contour of the housing 15 and / or does not protrude outwardly beyond the silhouette of the housing 15. In another and advantageous manner, the tear-off teeth 13 offset by a few millimeters, preferably by 2, 3, or 5 millimeters, including the respective tear-off tooth tip, into the interior of the housing 15, counter to the conveying direction F, thus improving the manual handling of the packaging material production machine 1.

[0081] As can be seen from the figures, in particular from figure 2, the tearing and / or cutting-to-length device has two rows of tearing teeth 13 spaced apart from one another. The clear width between the rows of tearing teeth 13 is smaller than the clear width of the housing opening, which corresponds to the tearing and cutting-to-length device or to the dispensing device 11. Thus, on the one hand, the tips of the tearing teeth 13 advantageously project into the interior of the housing, while on the other hand, the packaging material is reliably grasped and severed by the tearing teeth 13 even when the strand of packaging material is pulled very sharply to the side at an angle of more than 70 degrees and obliquely with respect to the conveying direction F.

[0082] Furthermore, and in addition to the aspects and embodiments of the packaging material production machine 1 mentioned above, the flexibility in the choice of materials should also be mentioned. Because the essential basic elements of the packaging material production machine 1 are designed as sheet metal elements, it is possible to use various materials. According to an exemplary embodiment of the packaging material production machine 1, steel components are used. These can be joined to one another in a material-locking and / or form-fitting manner and offer the advantage of superior robustness while optimizing the wall thicknesses. According to a further embodiment of the packaging material production machine 1, aluminum components are used and offer the advantage of weight optimization.According to another embodiment of the packaging material production machine 1, plastic components are used, which offer advantages such as production optimization when they are thermally formed or primary formed. According to another conceivable embodiment of a packaging material production machine 1, different materials are used, which, instead of the material-to-material joining methods, are now joined together using a form-fitting and / or material-to-material (adhesive) joining method.

[0083] Furthermore, it should be mentioned that, in an advantageous further development of the initially mentioned embodiment, the guide wall 31, 33, the boundary wall 49, 51, and the funnel wall section 53, 55 are connected to one another and / or form a single-piece molded part or a molded part composed of multiple parts. Overall, this improves the stability of the packaging material manufacturing machine 1. The features disclosed in the above description, the figures, and the claims can be important both individually and in any combination for the implementation of the invention in the various embodiments.

[0084] List of reference symbols

[0085] I Packaging material manufacturing machine

[0086] 3 Feed

[0087] 5 Deflection roller

[0088] 7 funnel section

[0089] 9 Forming device

[0090] II Dispensing facility

[0091] 13 Tear-off tooth

[0092] 15 housings

[0093] 17 Base part

[0094] 19 Ceiling part

[0095] 21 Electronics interface

[0096] 23, 25 Electronic connection

[0097] 27, 29 end sections

[0098] 31, 33 guide wall

[0099] 35, 37 guide surface

[0100] 39, 41 roller

[0101] 43, 45 deflection wall section

[0102] 47 Feed-through gap

[0103] 49, 51 boundary wall

[0104] 53, 55 funnel wall section

[0105] 57, 58 conveyor wheel

[0106] 59 Gearbox-motor arrangement

[0107] 61 funnel lid

[0108] 63, 65 funnel wall section

[0109] 67, 69 pulley

[0110] 71, 73 canal wall

[0111] 57 Rolling contact

[0112] 77 funding path

[0113] 79, 81 funnel wall

[0114] 83, 85 paragraph

[0115] 87 Contact end point H Horizontal direction

[0116] F Conveying direction a, ß angle

[0117] V Vertical direction

[0118] Ri rotation axis of component i

Claims

Claims 1. Packaging material manufacturing machine (1) for producing a packaging material product, comprising a feed (3) for introducing packaging material, in particular from a packaging material web wound into a roll from the inside of the roll, a forming device (9) arranged downstream of the feed (3) in the conveying direction for forming the packaging material web into a voluminous, cushioning packaging material product and a discharge device (11) for discharging the packaging material product, wherein a total length of the packaging material manufacturing machine (1) in the conveying direction of the packaging material web is less than 500 mm, in particular less than 450 mm or less than 400 mm,and / or wherein a production distance starting with a first deflection of the packaging material web by the packaging material production machine (1) up to a downstream forming of the packaging material web to the packaging material product in the conveying direction of the packaging material web is less than 400 mm, in particular less than 360 mm or less than 340 mm., 2. Packaging material manufacturing machine (1), in particular according to claim 1, for producing a packaging material product, comprising a feed (3) for introducing packaging material, in particular from a packaging material web wound into a roll from the inside of the roll, a forming device (9) arranged downstream of the feed (3) in the conveying direction for forming the packaging material web into a voluminous, cushioning packaging material product and a dispensing device (11) for dispensing the packaging material product, characterized by a cover part (19) made in one piece and enclosing the forming device (9) and the dispensing device (11).

3. Packaging material manufacturing machine (1) according to claim 1, wherein the cover part (19) is made of plastic, in particular by injection molding, or of a fiber composite material.

4. Packaging material manufacturing machine (1) according to claim 1 or 2, wherein the cover part (19) has a funnel section which tapers in cross-section from the feed (3) in the direction of the forming device (9), wherein in particular the cover part (19) directly adjoins the feed (3), and a one-piece with the funnel section, wherein in particular the hood section encloses the forming device (9) and the dispensing device (11).

5. Packaging material manufacturing machine (1) according to one of the preceding claims, further comprising a base part, in particular a base plate, which can be connected to the cover part (19) and is designed to carry the feed, the forming device (9) and the discharge device (11).

6. Packaging material manufacturing machine (1) according to one of the preceding claims, further comprising a base part connectable to the cover part (19), wherein the cover part (19) and the base part (17) have mounting interfaces that correspond in particular to one another in terms of shape, wherein in particular the cover part (19) can be plugged onto the base part (17).

7. Packaging material manufacturing machine (1), in particular according to one of the preceding claims, for producing a packaging material product, comprising a feed (3) for introducing packaging material, in particular from a packaging material web wound into a roll from the inside of the roll, a forming device (9) arranged downstream of the feed (3) in the conveying direction for forming the packaging material web into a voluminous, cushioning packaging material product, a discharge device (11) for discharge of the packaging material product, a housing (15) accommodating the forming device (9) and the discharge device (11), and a power supply unit arranged in the housing (15).

8. Packaging material manufacturing machine (1) according to claim 7, wherein the housing (15) has a terminal for connecting the power supply to a power plug.

9. Packaging material manufacturing machine (1) according to claim 7 or 8, further comprising a motor controller with an overload shutdown, such as an overcurrent and / or overtemperature circuit, and an overload shutdown associated with the power supply, such as an overcurrent and / or overtemperature circuit, wherein a shutdown threshold of the power supply is higher than a shutdown threshold of the motor controller.

10. Packaging material manufacturing machine (1) according to one of the preceding claims, further comprising a motor control with an overload cut-off, such as an overcurrent and / or overtemperature circuit, for operation of the packaging material manufacturing machine (1) and a safety circuit which is assigned to the motor control in such a way that in the event of a triggered Overload shutdown means that the motor control can only be reactivated when a manual unlocking is activated.

11. System comprising a packaging material manufacturing machine (1) according to one of the preceding claims and a packaging material web wound in particular into a roll, wherein the packaging material manufacturing machine (1) is designed to pull packaging material from the inside of the packaging material web roll.

12. A method for operating a packaging material manufacturing machine (1) according to one of the preceding claims and / or a system according to claim 11.

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