EP4077182A1

EP4077182A1 - Device and method for processing a strand of cushioning material, and cushioning material coil

Info

Publication number: EP4077182A1
Application number: EP20839311.6A
Authority: EP
Inventors: Bastian Schalk; Saskia Lange; Tim MATZKE; Vitali KREBS; Marco Schwarberg
Original assignee: Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Current assignee: Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Priority date: 2019-12-20
Filing date: 2020-12-21
Publication date: 2022-10-26
Also published as: DE102019135610A1; WO2021123444A1; US20230130138A1

Abstract

The invention relates to a device (1) for processing a cushioning material strand (7), in particular to form a cushioning material coil, said strand being made from a web-type starting material, in particular a roll or a Leporello stack, for example made of paper, by means of a cushioning forming machine, wherein the device comprises a winding device (3) for winding the cushioning material strand about a winding center (21) and comprising an adhesive strip dispensing device (5) which is oriented relative to the winding device such that the adhesive strip (17) dispensed by the adhesive strip dispensing device (5) is only attached to the outer final layer of the cushioning material strand when the outer final layer is wound about the winding center (21).

Description

Device and method for processing a strand of upholstery material and

Upholstery material winding

The invention relates to a device and a method for processing a strand of upholstery material. In this context, processing is to be understood in particular to mean processing the strand of cushioning material to form a winding of cushioning material. The present invention also relates to a cushioning material winding. A cushioning material winding comprises a wound cushioning material strand and an adhesive tape applied to an outer end layer of the cushioning material strand and extending in the longitudinal direction of the cushioning material strand for fastening the outer end layer to the cushioning material winding. A string of upholstery material is to be understood in particular as a three-dimensional paper upholstery product which is manufactured in an upholstery forming machine from a web-like starting material, in particular a roll or a fanfold stack, for example from paper.

Devices for processing strands of cushioning material to form cushioning material windings are known, for example, from EP 3 159 291 Bi. Therein, the device comprises a cushioning forming machine for forming a web-shaped starting material into a strand of cushioning material and a winding device for winding the strand of cushioning material around a winding center. For this purpose, the winding device comprises two horizontally extending prongs between which the padding material strand is conveyed and which rotate about a horizontal axis in order to wind the padding material strand around the winding center. Furthermore, an adhesive tape dispenser is provided with which the outer end layer of the padding material strand is glued to the padding material winding. For this purpose, a device for attaching the adhesive tape to the strand of cushioning material is arranged between the winding device and the cushioning conversion machine. To do this, one end of the tape is unwound from the roll of tape and placed on a horizontally extending counter plate of the attachment device, the surface of the tape being aligned in the vertical direction with the strand of padding material which is conveyed at a vertical distance above the adhesive surface of the end of the tape.

Before the outer end layer of the padding material strand is wrapped around the winding center If the winding process is interrupted, the padding material strand is severed, the downstream end of the padding material strand is pressed against the end of the adhesive tape via a vertical lifting device and the winding process is then continued so that the end of the padding material strand is also wrapped around the winding center. The winding process is continued by a certain rotational movement in order to glue the end of the padding material strand to the padding material winding. Finally, the winding process is interrupted again, the adhesive tape on the horizontal counter plate is severed by vertical displacement of a release agent and the downstream end of the adhesive tape is wound around the winding center by continuing the winding process again. In order to ensure that the downstream end of the adhesive tape is also pressed against the cushioning material winding, a horizontally extending spring plate is provided downstream of the counter plate that supports the adhesive tape on the way between the counter plate and the winding device and presses it against the winding device. After the second end has also been attached to the cushioning material winding, an ejector plate extending in the vertical direction is displaced along the winding axis of the winding device in order to strip the cushioning material winding from the prongs of the winding device.

The disadvantage of the known device is its complexity, which is associated with the large number of drives used and leads to increased production and maintenance costs. Another disadvantage is that the processing speed is increased by stopping the winding process in order to press the adhesive tape onto the padding material strand and to separate the adhesive tape. Stripping off the cushioning material also limits the processing speed. Furthermore, with the known device, the amount of adhesive tape required can only be adjusted to a limited extent, depending on the size of the cushioning material winding, since, for example, the distance between the counter plate for attaching the adhesive tape and the winding device always causes an adhesive tape lag, regardless of the size of the cushioning material winding. In addition, it has been found that the rotating prongs of the known winding device pose a considerable risk of injury for persons operating the device.

The object of the invention is to overcome the disadvantages of the prior art, in particular to provide a device and a method for processing a strand of cushioning material, in particular into a cushioning material winding, the processing time and preferably the adhesive tape requirement should be reduced and / or the development and maintenance effort for the device should be reduced. A further object of the present invention is to provide a cushioning material winding which has a reduced adhesive tape requirement with the same or increased dimensional stability.

The object is achieved by the subject matter of the independent claims.

The first aspect of the present invention relates to a device for processing a padding material strand, in particular into a padding material winding, which is manufactured by an upholstery forming machine from a web-like starting material, in particular a roll or a fanfold stack, for example from paper.

The strand of cushioning material is made in particular from recycled paper. Recycled paper is in particular paper materials with a low proportion (less than 50%) of fresh fiber-containing paper material. In particular, paper materials which contain 70% to 100% waste paper are preferred. The recycling paper for the purposes of this invention is intended to be paper material which can have a tensile strength index in 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 may have, preferably a tensile strength of 5 Nm / g to 40 Nm / g. A standard 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 property or waste paper property can be characterized by the so-called burst 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 bursting 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 / m ^A 2 to a maximum of 140 g / m ^A 2. According to the invention, the starting packaging material can be in the form of a roll of material web or a zigzag-folded stack of packaging material, which is also referred to as a fan-fold stack.

The padding material strand is in particular manufactured in such a way that in the middle, along the A particularly wavy deformation zone, which is impressed by the cushioning forming machine and which is laterally bounded by two, in particular, essentially uniform bead ends, is formed. A cushioning machine for producing cushioning material strands from a sheet-like starting material is shown in EP 3159291 Bi. In addition, a large number of upholstery shaping machines are described in the prior art, which is why the specific design of the same will not be discussed further below.

Processing the strand of cushioning material is to be understood in particular as the processing of the same to form a winding of cushioning material. In this case, a cushioning material winding can on the one hand be a packing material means such as a cushioning material spiral or a cushioning material helix, but on the other hand it can also form a casing for an object to be cushioned. In this case, the processing can be, for example, that the padding material strand is wrapped around an object to be upholstered. The resulting winding of cushioning material can, for example, extend in a spiral shape around the object to be cushioned, the cushioning material layers moving away from the object in the radial direction with an increasing number of layers. Alternatively, the cushioning material winding can extend helically along a longitudinal axis of an object to be cushioned, the radial distance of the winding layers from the longitudinal axis of the object in particular remaining constant in the radial direction. Furthermore, the cushioning material winding can in particular be a combination of a cushioning material spiral and a cushioning material helix, which has wound layers that adjoin one another both in the radial direction and in the longitudinal direction. The strand of cushioning material is preferably processed into a cushioning material winding separate from the objects to be cushioned, such as a cushioning material spiral or a cushioning material helix or a combination of both variants, the cushioning material spiral being particularly preferred.

According to the first aspect of the present invention, the device comprises a winding device for winding the padding material strand around a winding center. It should be clear that the winding center does not necessarily mean a structural core around which the strand of cushioning material is wound. Rather, the winding center can only describe a geometric position, in particular a winding axis, around which the strand of padding material is wound. In particular, it must The winding center does not necessarily have to be stationary. Rather, the winding center can assume different positions over the winding process. Such wrapping devices without a structural design of the wrapping center are known, for example, from agriculture in the form of round balers for wrapping straw round bales. Round balers of this type wrap straw into a round bale by means of rollers arranged circumferentially around a wrapping center without the need for a structurally designed wrapping center. A winding device working according to this principle for processing a padding material strand into a padding material winding is known from DE 10 2017 113 532 Ai, the disclosure of which relating to the winding device without a structurally designed winding center is included in the disclosure of the present description. It is conceivable to use a similar winding device to implement the present invention. For example, an arrangement of belts and / or rollers at least partially surrounding the winding center could be used to wind the strand of padding material around the winding center.

However, it is preferred to use a winding device with at least two or exactly two deflectors, in particular prongs, between which the strand of cushioning material, in particular one end of the strand of cushioning material, is conveyed. The winding center is preferably in the middle of a line connecting the two deflectors to one another. The deflectors are preferably fixedly connected to one another, in particular in the form of a reel, and / or fixed immovably with respect to one another. Preferably, the deflectors for winding the padding material strand are rotated around the winding center, in particular around a winding axis, the winding axis preferably running through the winding center. The winding axis particularly preferably extends in the vertical direction.

According to the first aspect of the present invention, the device comprises an adhesive tape dispenser which is aligned with the winding device in such a way that the adhesive tape dispensed by the adhesive tape dispenser is only applied to an outer end layer of the cushioning material strand when the outer end layer is wrapped around the winding center. This is to be understood in particular as the fact that the adhesive tape dispenser is oriented in such a way that the adhesive tape can be attached directly to the outer end layer in the wound state. For this purpose, the adhesive tape dispenser is preferably oriented in such a way that the adhesive tape is attached to the the winding center wound outer end position can be brought up. In particular, the adhesive tape is applied to the outer end position independently of the radial extension of the cushioning material winding. This is to be understood in particular as the fact that the adhesive tape dispenser is designed in such a way that the application of the adhesive tape can take place, in particular it can take place automatically, with different radial extensions of the cushioning material winding. In particular, the application can take place with different radial extensions without having to calibrate the adhesive tape dispenser for changing from one radial extension to another radial extension. The application of the adhesive tape to the outer end layer, independent of the radial extent of the cushioning material winding, is preferably achieved by using the adhesive tape pivoting mechanism described below, particularly preferably the spring-damped adhesive tape pivoting mechanism.

In a less preferred but in principle conceivable embodiment of the present invention, the adhesive tape dispenser can also be immovable with respect to the winding device. In such an embodiment, for example, the adhesive tape dispenser could be aligned such that the adhesive tape is not actively conveyed to the outer end position, but is aligned with its adhesive surface to the winding device in such a way that it is taken along by the outer end position when it reaches a predetermined diameter of the outer end position.

Adhesive tape is preferably to be understood as meaning a, in particular strip-shaped, carrier material coated with pressure-sensitive adhesive. In a less preferred embodiment, another material with adhesive properties can also be used as an alternative to the pressure-sensitive adhesive.

The outer end position is to be understood in particular as the last, in particular outermost, section of the padding material strand which once completely encircles the winding center. Complete rotation is to be understood as meaning, in particular, a winding through 360 ° around the winding center. Application is to be understood as meaning, in particular, the pressing of a free end of the adhesive tape against the outer end layer and preferably the subsequent winding by a predetermined angle around the winding center. In particular, the end of the padding strand of the outer end layer is overlapped by the adhesive tape at least once. Provided that the outer end layer must be wrapped around the winding center before the adhesive tape is applied, it is to be understood in particular that the outer end layer must be wrapped around the winding layer that precedes it. It should be clear, however, that this does not mean that the outer end position must contact the previous winding position completely and circumferentially. Rather, as a rule, the end of the strand will still protrude to a certain extent from the previous winding layer when the adhesive tape is attached to the outer end layer. In particular, it is only when the adhesive tape is wound around the winding center that the end of the strand will finally be pressed against the previous winding layer. It is also not absolutely necessary that the majority of the outer end position has already been wrapped around the winding center. Rather, it may in particular be sufficient only that a portion of a few degrees, particularly at least 5 ^0, io °, 3o ^0, 45 ⁰ or 90 °, the Außenendlage is wound around the winding center as long as the adhesive tape is attached to this already wound portion. Preferably, however, a portion of at least 180 ⁰ of Außenendlage is already wound around the winding center when the adhesive tape is applied to the already wound portion.

In particular, the adhesive tape is only then applied to an outer end layer of the strand of cushioning material when the outer end layer has been wound around the winding center and the strand of cushioning material has been cut to length, in particular severed. When the strand of cushioning material is cut to length, the strand of cushioning material is separated, in particular, into a strand of cushioning material on the winding device side and a cushioning material strand portion on the upholstery forming machine side. The padding material strand section on the winding device side forms in particular the outer end position. After the outer end layer has been cut to length, it is especially wound around the winding center. In particular, the adhesive tape is then applied to the outer end position. In particular, the adhesive tape head only moves to the outer end layer when the outer end layer is cut to length from the strand of cushioning material and / or is wrapped around the winding center.

By attaching the adhesive tape to the outer end layer that has already been wound around the winding center, it is possible, in particular, to avoid adhesive tape trailing and thus to adapt, in particular reduce, the adhesive tape requirement depending on the winding diameter to be achieved. Furthermore, degrees of freedom in the design of the device are gained by the measure according to the invention. For example, by applying the adhesive tape to the already wound outer end layer, the adhesive tape can be oriented vertically to the outer end layer can be applied so that the padding material strand can also be wound around a vertical winding axis. As a result, the winding device in particular can be designed in such a way that the weight force is used to remove the processed padding material strand, in particular the padding material winding, in particular the processed padding material strand can be removed from the device by the weight force alone. As a result, the number of drives required can also be reduced, since, for example, an ejection mechanism as used in the prior art can be dispensed with. Another advantage is that the application of the adhesive tape to the already wound outer end layer enables the adhesive tape to be applied while the winding process continues. As a result, the processing times in particular can be reduced compared to the known devices.

The adhesive tape dispenser preferably has an adhesive tape head that is movably mounted with respect to the winding device. The adhesive tape head is used in particular to apply the dispensed adhesive tape to the outer end position. The adhesive tape head is preferably brought up to the outer end position in order to apply the adhesive tape. In particular, a free end of the adhesive tape can be held by the adhesive tape head and applied to the outer end layer by bringing it up to the latter. The adhesive tape is then wound around the outer end layer, in particular via the winding device. In this case, in particular, additional adhesive tape is obtained from an adhesive tape supply, in particular unwound from an adhesive tape roll, and in particular applied to the outer end position via the adhesive tape head. For this purpose, the adhesive tape supply can be designed, for example, as a roll of adhesive tape that is rotatably mounted about its roll axis. The adhesive tape supply can be attached both immovably and movably with respect to the winding device. In particular, in an alternative embodiment, the adhesive tape supply can be decoupled from the movements of the adhesive tape head, so that the adhesive tape head can be moved independently of the adhesive tape supply. However, it has been found to be preferred to attach the adhesive tape supply to the adhesive tape head. As a result, the adhesive tape supply in particular can be moved together with the adhesive tape head, so that the path over which the adhesive tape has to be guided between the adhesive tape supply and the outer end position can be shortened and, in particular, can be kept constant. As an alternative or in addition, the adhesive tape head has, in particular, a counter bearing, such as a Deflection roller, for pressing the adhesive tape onto the outer end position. The dispensed adhesive tape is preferably brought up to the outer end position via the adhesive tape head and pressed against the outer end position via the counter bearing. In this case, the counter-bearing can be attached to the adhesive tape head in a particularly rotatable manner, in particular about a vertical axis. In particular, the dispensed adhesive tape runs from the adhesive tape supply to the counter bearing and is applied by this to the outer end position. Both the adhesive tape supply and the counter bearing are preferably attached to the adhesive tape head, with a roll of adhesive tape being provided as the supply of adhesive tape and a deflection roller being provided as the counter bearing, with the axes of rotation of the deflection roll and the roll of adhesive tape running parallel to one another and / or being aligned vertically. Alternatively or additionally, the adhesive tape head is movably mounted in such a way, in particular when adhesive tape is applied to the outer end position, is spring-damped in such a way that it follows a height profile of the circumferential course of the outer end position.

In a preferred embodiment, the adhesive tape dispenser has an adhesive tape pivoting mechanism, in particular a pivoting arm mounted rotatably, for pivoting the adhesive tape head to the outer end position. The adhesive tape swivel mechanism has in particular a rotatably mounted swivel arm which is rotatably mounted in particular at one end and is fastened to the adhesive tape head at the other end. The swivel arm is preferably mounted rotatably about the side of the swivel arm facing away from the adhesive tape head. The adhesive tape head is in particular moved, in particular pivoted, to the outer end position by rotating the pivot arm about the rotatably mounted end. The adhesive tape swivel mechanism can also have further swivel arms which are rotatably mounted with respect to one another. For example, a second pivot arm can be articulated to the rotatably mounted end of the first pivot arm and the other end can also be rotatably mounted in relation to the winding device. In this way, in particular, the amplitude of movement of the adhesive tape head can be increased and the pivoting movements of the adhesive tape head can be adapted to the winding diameter of the outer end position by superimposing several pivoting movements.

The adhesive tape pivoting mechanism is preferably spring-damped, and in particular has a gas pressure spring. In particular, as a result, the adhesive tape head dances on the outer end position, in particular along a height profile in the radial direction the circumference of the cushioning material winding. The spring damping serves in particular to ensure that the adhesive tape swivel mechanism adapts to the respective radial extension of the cushioning material winding to be wound. In this case, the adjustment via the spring damping takes place preferably with respect to height profiles along the circumferential course of a cushioning material winding and / or with respect to different mean radial extensions of the outer end position of different cushioning material windings. As a result, particularly when the adhesive tape is applied to the outer end position, a pressing force can be exerted on the adhesive tape, in particular via the counter bearing of the adhesive tape head. In particular, a single swivel arm of the adhesive tape swivel mechanism can be spring-damped or several swivel arms of the adhesive tape swivel mechanism can be spring-damped. The spring damping can, in particular, reduce the requirement for the precision of the adhesive tape swivel mechanism, since, if necessary, excessive kinematic forces or excessive movement amplitudes can be compensated for by the spring damping. The pivot axis of the adhesive tape pivot mechanism is preferably aligned essentially in the vertical direction. The pivot axis of the adhesive tape pivot mechanism, the axis of rotation of the roll of adhesive tape and / or the axis of rotation of the counter bearing, in particular the deflection roll, are particularly preferably aligned parallel to one another.

In a preferred embodiment, the adhesive tape dispenser has a linear drive for bringing the adhesive tape head up to the outer end position. The linear drive is preferably coupled to the adhesive tape pivoting mechanism in such a way that a linear movement of the linear drive causes the adhesive tape head to pivot. For this purpose, a linear drive is preferably articulated at a distance from the pivot axis of the adhesive tape pivot mechanism. In particular, several linear drives can be articulated to a swivel arm or distributed over several swivel arms, which in particular form the adhesive tape swivel mechanism. The use of linear drives to bring the adhesive tape head closer has the advantage that, for example by using a gas spring, the drive and the spring damping can be implemented, in particular, in one component. Another advantage is that, compared to rotary drives, linear drives can also be implemented cost-effectively and with little maintenance using pneumatic and hydraulic drives. The drive axis of the linear drive is preferably aligned essentially in the horizontal direction. In a preferred embodiment, the adhesive tape dispenser has a linear drive for bringing the adhesive tape head up to the outer end position, the linear drive having a guide, in particular a guide rail, and a slide mounted in translation with respect to the guide. In particular, the carriage is connected to the adhesive tape head in such a way that the adhesive tape head follows a particularly translatory movement of the carriage. Alternatively or additionally, the drive axis of the linear drive is oriented essentially in the horizontal direction.

In a preferred embodiment, the adhesive tape head is mounted in a translatory manner with respect to the carriage, in particular in a translatory manner in the same direction as the mounting of the carriage in relation to the guide.

In a preferred embodiment, the adhesive tape head and the carriage are coupled to one another via a spring system, in particular a spring such as a spiral spring, that a translational relative movement between the carriage and the adhesive tape head causes a spring preload between the carriage and the adhesive tape head and / or a pressing force of the tape head on the outer end position. In this way, in particular, it is possible to ensure that the adhesive tape is reliably adhered to the outer end position. In particular, secure gluing can thereby also be ensured when a flat round section of an essentially elliptical outer end position lies opposite the head of the adhesive tape. In particular, the adhesive tape head exerts such a great pressure on the outer end position that a sufficient counterforce for sticking the adhesive tape is achieved.

In particular, the spring preload between the carriage and the adhesive tape head is matched to the deformation resistance of the outer end position in the wound state in such a way that the spring preload acts as damping so that the adhesive tape head follows a height profile of the outer end position when the adhesive tape is applied.

In particular, the pressing force can act in the direction of the winding device, in particular in the direction of the winding center. In particular, the effective direction of the pressing force can be directed towards the winding center, in particular towards the midpoint of a connecting line between two deflectors, such as winding prongs. In a preferred embodiment, the device has a sensor, in particular an induction sensor, for detecting an in particular translational relative movement between the adhesive tape head and the carriage. In particular, the sensor is coupled to a controller of the linear drive in such a way that the controller stops a movement of the linear drive when the sensor detects a predetermined relative movement between the adhesive tape head and the carriage.

In particular, the device comprises a control which is programmed in such a way that the adhesive tape head is brought via the linear drive to the outer end layer which has been cut to length from the padding material strand and wound around the winding center. The approach takes place in particular until there is contact between the adhesive tape head and the outer end position. In particular, the approach takes place beyond the contact between the adhesive tape head and the outer end layer. In particular, the adhesive tape head is prevented from moving further by the outer end position, while the carriage continues to move due to the translational mounting between the carriage and the adhesive tape head. This leads in particular to the fact that the slide compresses a spring of the suspension as it travels further. The further process is carried out in particular until the sensor, in particular an induction sensor, detects a predetermined relative movement between the adhesive tape head and the carriage, which is stored in the controller in particular. In particular, the controller stops the further movement of the adhesive tape head as soon as this predetermined relative movement is detected. The spring of the suspension is particularly tensioned by the relative movement between the carriage and the adhesive tape head. In particular, this creates a pressing force which acts on the outer end position from the adhesive tape head. In particular, the pressing force can be transmitted from the adhesive tape head to a counter bearing, such as a deflection roller for pressing the adhesive tape against the outer end position.

In particular, one advantage of the linear drive described above is that unevenness caused by production, in particular a non-100% circular outer end position, can be compensated for by means of the built-up spring preload and / or contact pressure. In particular, the head of the adhesive tape can dance along the height profile of the outer end position.

The linear drive is in particular attached to a device housing of the device. In particular, the drive axis of the linear drive is parallel to the Direction of conveyance of the strand of cushioning material between the strand access of the device, in particular the device housing, and the winding device.

In a preferred embodiment, the device has a separating device which is mounted movably relative to the winding device and has a separating means, such as a cutter for separating the adhesive tape attached to the outer end layer. The severing device is preferably movably mounted in such a way that the adhesive tape can be severed directly at the wound outer end position. In this case, the release agent moves in particular through the adhesive tape and preferably partially into the outer end position when it is separated. As a result, the outer end position in particular can be used as a counter surface for the separation process. As a result of the direct separation at the outer end position, in particular an adhesive tape trailing, which in particular still has to be attached to the outer end position, can be reduced in size or prevented. The severing of the adhesive tape at the wound outer end layer is to be understood as meaning that the severing takes place on a section of the outer end layer that is already wound around the winding center. The severing of the adhesive tape at the wound outer end layer is not to be understood as meaning that the severing must take place on a section of adhesive tape that must be in contact with the outer end layer during the severing process. Rather, it is preferable to configure the severing device in such a way that the adhesive tape is tensioned during the severing process. Particularly preferably, the adhesive tape is tensioned during the separation process in such a way that the adhesive tape section on which the separation takes place is free of contact with the outside of the outer end layer during the separation process. In this state, the adhesive tape section extends in particular linearly between the last end of the adhesive tape still in contact with the outer end position and a spring element, such as the spring plate described below. As described further below, the adhesive tape is preferably effected by the pivoting movement of the severing device. The severing device is preferably designed in such a way that the tension exerted on the adhesive tape assumes its maximum value immediately before severing the adhesive tape.

In a preferred embodiment, the separating device has a separating pivot mechanism for pivoting the separating means towards the outer end position. In this case, in particular, the release agent is pivoted by the adhesive tape onto, or in particular partially into, the outer end position. The separating pivot mechanism is preferably spring-damped, in particular with a gas pressure spring. The pivot axis of the separating pivot mechanism is particularly preferably oriented essentially in the vertical direction. In principle, the severing device can be designed independently of the adhesive tape head. It has turned out to be preferred, however, to couple the severing device to the adhesive tape head, in particular to connect it firmly to it. In this way, in particular, the adhesive tape pivoting mechanism can be used to simultaneously move the adhesive tape and the severing device to the outer end position. The separating pivoting mechanism is particularly preferably implemented by pivoting the adhesive tape head. Swiveling mounting of the adhesive tape head is to be understood in particular to mean that the adhesive tape head is mounted such that it can pivot with respect to the swivel arm of the adhesive tape swivel mechanism. In particular, on the one hand the swivel arm of the adhesive tape swivel mechanism can be pivoted in such a way that it can bring the adhesive tape head to the outer end position by rotating it about its pivot axis and the adhesive tape head can then be rotated relative to the pivot arm due to the pivotable mounting relative to the pivot arm. The separating means is preferably spaced apart from the pivot axis of the adhesive tape head in such a way that the rotary movement of the adhesive tape head causes the separating means to pivot towards the adhesive tape.

The adhesive tape pivoting mechanism and the severing pivoting mechanism are preferably coupled to one another via a link chain. The link chain is preferably formed by two swivel joints formed on the swivel arm of the adhesive tape swivel mechanism. The swivel joint is to be understood as meaning, in particular, the structural design of the rotatable mounting. The first swivel joint is preferably attached to the end of the pivot arm facing away from the adhesive tape head and is used to implement the adhesive tape pivot mechanism, via which the adhesive tape head can be pivoted to the outer end position. This is used in particular to apply the adhesive tape to the outer end position. If the adhesive tape head is pivoted onto the outer end position, the adhesive tape can be wound around the outer end position, in particular by driving the winding device, in particular by rotating the outer end position. The second swivel joint is preferably formed on the end of the swivel arm facing the adhesive tape head, and in particular connects the swivel arm and the adhesive tape head to one another in a rotatable manner. This allows the tape head, in particular after the adhesive tape has been applied, rotated relative to the swivel arm in such a way that a separating means attached to the swivel arm cuts through the adhesive tape. For this purpose, the separating means is preferably arranged at a distance from the second swivel joint, so that the rotation of the adhesive tape head causes a pivoting movement of the separating device, in particular of a separating means attached to the adhesive tape head. The second swivel joint is designed in particular to implement the separating pivot mechanism.

The separating device preferably has a linear drive for bringing the separating agent towards the outer end position, in particular through the adhesive tape to the outer end position. The linear drive is preferably coupled to the separating pivot mechanism in such a way that a linear movement of the linear drive causes a pivoting movement of the separating means. The drive axis of the linear drive is particularly preferably aligned essentially in the horizontal direction. It has been found to be preferred to articulate the linear drive of the severing pivot mechanism to the adhesive tape head, in particular to articulate it to the adhesive tape head at a distance from the rotatable mounting of the severing pivot mechanism. Since the adhesive tape head is located at the outer end position, in particular for the application of the adhesive tape, only a small stroke movement is required to bring the release agent through the adhesive tape to the outer end position and thereby cut the adhesive tape. For this purpose, the release agent is preferably fixedly and immovably attached to the adhesive tape head and protrudes in particular in the horizontal direction beyond the adhesive tape head in such a way that the rotary movement of the adhesive tape head caused by the linear drive causes a pivoting movement and penetration of the release agent into the adhesive tape.

The separating device preferably has a spring plate which is arranged in relation to the separating means in such a way that, when separating the adhesive tape, it exerts a spring force on the adhesive tape, in particular tensions it.

The device preferably has a control via which the adhesive tape dispenser, the winding device and / or the severing device are controlled.

The device preferably has a device housing for preventing undesired engagement in the winding device and / or in the adhesive tape dispensing device, which housing has a strand access through which Padding material strand can be transferred to the device. The device housing can in particular reduce the risk of injury to a person operating the device. For this purpose, the device is preferably designed in such a way that an operator cannot intervene while the device is in operation. For this purpose, the device housing can be designed, for example, as an in particular complete enclosure of the winding device and the adhesive tape dispenser, which in particular has the strand access as the only possibility of intervention. The device housing preferably has at least one closing mechanism, such as a roller door, with which access to the winding device can be prevented during the processing of the padding material strand and can be released after processing. For example, a closing mechanism can be provided which can close and release an output opening for outputting the processed padding material strand, in particular the padding material winding. The dispensing opening of the device is preferably arranged below the winding device, so that the processed padding material strand, in particular the padding material winding, can be removed from the device using the force of gravity, in particular it can be placed on a storage table for storage or given off to a storage channel, a chute or the like can.

The device preferably comprises a position detection device, which is designed to detect whether the padding material strand is in engagement with the winding device, whether an unintentional engagement occurs during processing of the padding material strand in the winding device and / or in the adhesive tape dispenser, and / or whether a the processed padding material strand is automatically released from the winding device, in particular by its force of gravity. For this purpose, in particular a sensor for position detection at the strand access and a sensor for position detection on the winding device can be provided. The sensors can preferably be coupled to a controller which controls the winding device and the adhesive tape dispensing device. In this way, for example, processing can be initiated by the controller starting the winding process when a signal is present from both sensors, which signal that the padding material strand has entered the device via the strand access and is in engagement with the winding device. Furthermore, a safety mechanism can be integrated via the sensors, which switches off the device as soon as the sensors detect an intervention in the device. The sensors and / or the Control designed in such a way that the application of the adhesive tape and the winding of the padding material strand is not interpreted as an intervention in the device.

In particular, the device can have at least one strand deflector for deflecting the padding material strand between a strand access and the winding device. In particular, the strand deflector can be arranged between the strand access and the winding center. In particular, by means of the strand deflector, the deflection of the strand of cushioning material is shifted from the outlet of the cushioning conversion machine in the direction of the winding device. In this way, in particular, sharp-edged grinding on one side of the outlet opening can be prevented. In this way, in particular, the risk of the strand of upholstery material tearing off can be reduced. This is particularly important in the case of large windings of cushioning material, since there is a greater deflection of the strand of cushioning material.

In particular, the strand deflector can be mounted such that it can rotate about an axis of rotation that extends in particular in the direction of gravity. In particular, the axis of rotation of the strand deflector can extend parallel to the axis of rotation of the winding device. In this way, in particular, the strand deflector can assist in aligning, in particular erecting, the strand of cushioning material in an orientation provided for the winding device.

In particular, the strand deflector can have a cross-sectional area that tapers, in particular, in the gravitational direction, in particular it can be designed in the manner of a cone. In particular, the strand deflector can be designed as a deflecting roller that tapers along the axis of rotation, in particular in the direction of gravity.

The device preferably comprises an adhesive tape monitoring device which has a sensor, such as an inductive sensor or an optical sensor, for monitoring the application of the adhesive tape to the outer end layer. In particular, the sensor is designed to detect a movement, in particular a rotary movement, of an adhesive tape supply providing the adhesive tape. The rotary movement can in particular be detected via an optical sensor which is directed towards the supply of adhesive tape, such as a roll of adhesive tape. Alternatively or additionally, the rotary movement can be detected via an inductive sensor. In particular, the inductive sensor can detect the rotational movement of a shaft that rotatably receives the adhesive tape supply. As an alternative or in addition, the device can comprise an adhesive tape monitoring device which has an inductive sensor for monitoring the consumption of adhesive tape. The inductive sensor can in particular be designed to detect the rotation of an adhesive tape supply providing the adhesive tape. In particular, the detected rotation can be converted into an adhesive tape consumption by a controller of the adhesive tape monitoring device. In particular, the controller can be designed to count the number of detected revolutions of the adhesive tape supply. In particular, the controller can be designed to calculate the adhesive tape consumption based on the number of detected revolutions. For this purpose, for example, the number of revolutions can be stored in the control after a roll of adhesive tape has been used up. In this example, the predetermined tape consumption could for example be given as a number of revolutions. Alternatively, the predetermined tape consumption could be specified as a tape length. For this purpose, the control could be designed to convert the number of revolutions into an adhesive tape length.

In particular, the controller can be designed to trigger an alarm signal when a predetermined consumption of adhesive tape has been reached. The alarm signal can be, for example, an acoustic and / or an optical signal. In particular, the device can have an alarm light via which an optical alarm signal, such as a red light, is emitted. In particular, the optical alarm signal can be visible to a person operating the device.

As an alternative or in addition, the device can in particular have an adhesive tape monitoring device which has an optical sensor for monitoring the consumption of adhesive tape. The optical sensor can be designed to detect the diameter of an adhesive tape supply providing the adhesive tape. In particular, the optical sensor can be aligned with the axis of rotation of a roll of adhesive tape, the sensor being aligned in particular in the radial direction.

In particular, the detected diameter can be monitored by a controller of the adhesive tape monitoring device, in particular the controller being designed to trigger an alarm signal if the diameter falls below a predetermined minimum. In particular, the control of the adhesive tape monitoring device is designed to measure the diameter of the Measure the adhesive tape roll over the distance between the outer end position of the adhesive tape roll and the optical sensor.

The axis of rotation of the winding device is preferably oriented essentially in the vertical direction. The winding device is particularly preferably designed as a reel with two deflectors, such as prongs, each having an end coupled to a rotary drive and a free end, the free end of the deflector preferably protruding in the direction of gravity. As a result, the gravitational force in particular can be used to remove the processed padding material strand, in particular the padding material winding. The winding device is preferably driven by a rotary drive, in particular by a rotary motor.

Another aspect of the invention, which can be combined in particular with the other aspects of the invention, relates to a device and a method for processing a padding material strand, in particular into a padding material winding, which is produced by a padding forming machine from a web-like starting material, in particular a roll or a fanfold stack, for example made of paper. The device comprises a winding device for winding the padding material strand around a winding center and an adhesive tape dispensing device for applying adhesive tape to the padding material strand. In the method, the padding material strand is wound around a winding center with a winding device and an adhesive tape is applied to the padding material strand by means of an adhesive tape dispenser. According to the device according to the invention and the method, the adhesive tape dispenser and the winding device are arranged to be movable relative to one another, in particular in such a way that they can move towards one another. This relative mobility between the winding device, in particular the stationary winding section, and the adhesive tape dispenser is used to put the adhesive tape dispenser and the strand of cushioning material, in particular the most recently wound outer end layer, into pressure contact so that the adhesive tape can be applied, in particular glued, to the strand of cushioning material.

The relative mobility to one another is realized in particular by a movable adhesive tape dispenser and / or by a movable winding device. In one embodiment, the relative mobility is realized by a movable adhesive tape dispenser. The movable adhesive tape dispenser is implemented in particular by the adhesive tape pivoting mechanism described above and / or by the linear drive described above.

As an alternative or in addition to the movable adhesive tape dispenser, the relative mobility is implemented in particular by a movable winding device. In particular, the movable winding device is implemented by a movable guide, in particular a movable mounting, of the winding device.

A second aspect of the present invention relates to a method for processing a strand of upholstery material which is produced by a cushioning forming machine from a web-like starting material, in particular a roll or a fanfold stack, for example made of paper, the strand of upholstery material being wound around a winding center and only then an adhesive tape is applied to an outer end layer of the padding material strand when the outer end layer has been wrapped around the winding center. The method is preferably carried out with the device described above.

The device according to the invention can in particular be structured in such a way that it can carry out the method according to the invention. The method according to the invention can in particular be defined in such a way that it can run according to the mode of operation of the device according to the invention.

In a preferred embodiment, the adhesive tape is brought up to the outer end position before being applied to the outer end position. The approach takes place in particular by means of a pivoting movement and / or by means of a linear movement, which in particular brings about a pivoting movement of the adhesive tape towards the outer end position. Alternatively or additionally, the pivoting movement and / or the linear movement is effected by means of a spring-damped drive, in particular by means of a spring-damped linear drive. Furthermore, the adhesive tape is preferably fed to the outer end position together with an adhesive tape supply, such as a roll of adhesive tape.

The strand of cushioning material is particularly preferably processed to form a winding of cushioning material. In a preferred embodiment, the adhesive tape is applied to the outer end position via an adhesive tape head which, before being applied to the outer end position, is brought to the outer end position by a linear movement. In a preferred embodiment, the adhesive tape head is brought to the outer end position via a slide of a linear drive, the linear movement of the adhesive tape head being braked, in particular stopped, by contact with the outer end position, while the carriage continues the linear movement so that a relative movement between the carriage and the Tape head emerges.

In a preferred embodiment, the relative movement between the linear movement of the adhesive tape head and the carriage is detected, in particular measured by means of a sensor such as an induction sensor. In particular, the linear movement of the carriage is interrupted, in particular interrupted by a controller, as soon as a predetermined relative movement, in particular one stored in a controller, is detected between the adhesive tape head and the carriage.

In a preferred embodiment, the relative movement between the adhesive tape head and the carriage brings about a spring tension between the carriage and the adhesive tape head and / or a pressing force of the adhesive tape head on the outer end position. In particular, the spring tension between the carriage and the adhesive tape head and / or the pressing force of the adhesive tape head acts on the outer end position in such a way that the adhesive tape head follows a height profile of the circumference of the outer end position.

Before the adhesive tape is applied, the radial extent of the outer end position, in particular at the position to which the adhesive tape is brought, is recorded in order to adapt a movement of the adhesive tape to the outer end position to the radial extent of the outer end position. As an alternative or in addition, the circumferential position of the end of the cushioning strand is recorded before the adhesive tape is applied, in order to bring the adhesive tape close to the end of the cushioning strand, in particular to reduce the amount of adhesive tape required for fastening the end of the cushioning strand. The end section of the outer end position is to be understood as the end of the cushion strand. The end of the padding cord is attached in particular to the outer end layer itself. In particular, the end of the padding cord is glued to the beginning of the outer end layer wrapped around the winding center with the adhesive tape. The radial extent of the outer end position is preferably recorded continuously or in sections when the adhesive tape is applied in order to adapt the adhesive tape position and / or the force with which the adhesive tape is pressed against the outer end position to the radial extent of the outer end position. The force with which the adhesive tape is pressed against the outer end position is preferably generated via a linear drive and / or via a gas spring.

The adhesive tape attached to the outer end layer is preferably severed. In particular, the separation takes place after the adhesive tape is essentially completely wound onto the outer end layer. In this context, essentially means that the application of the adhesive tape to the outer end position has already been completed, but a small adhesive tape end section of a few centimeters can still protrude from the outer end position or can be partially pulled off the outer end position in the course of the separation movement. The adhesive tape is preferably severed at the outer end position. As an alternative or in addition, the separation takes place preferably by means of a pivoting movement and / or by means of a linear movement of a separating means, such as a cutter. The separation is particularly preferably carried out by a pivoting movement of the separating means which is brought about by a linear movement of a drive, in particular via a separation pivoting mechanism.

The separation is preferably carried out by moving a release agent towards the, in particular smooth, surface of the adhesive tape opposite the adhesive surface. This has the particular effect that sticking of the adhesive tape to the separating means as a result of the separating movement is avoided.

The adhesive tape is preferably stretched before it is severed. In particular, the adhesive tape is stretched around the outer end position. The tension can be tightened in particular by pressing the adhesive tape against the outer end position. Alternatively or additionally, the tensioning of the adhesive tape can be brought about by the pivoting movement of the severing device, in particular the adhesive tape head. In particular, as a result of the pivoting movement, a spring plate can come into engagement with the adhesive tape and exert a tensile force on the adhesive tape, so that the separation process is facilitated. As an alternative or in addition, the adhesive tape can be stretched around the outer end position in that the adhesive tape delivery is slowed down, in particular blocked, so that the adhesive tape as a result of a rotation of the outer end position by a certain angular range around this is tensioned.

The processed strand of cushioning material, in particular the winding of cushioning material, is preferably accelerated in the winding direction and / or in the direction opposite to the winding direction, in particular after the adhesive tape has been applied and separated. This acceleration is used in particular to release the processed padding material strand from a device with which it was processed. In particular in the case of an embodiment in which the winding takes place around a vertical axis, an additional ejector drive can thereby be completely dispensed with.

The adhesive tape preferably extends essentially in the vertical direction when it is applied to the outer end layer. It is also preferred to wrap the adhesive tape around at least 1080 °, 72o ⁰ , 54o ⁰ , 36o ⁰ , 180 ⁰ , 90 ⁰ , 45 ⁰ or 15 ^0. Especially at high requirements on the dimensional stability of the processed strand a cushioning material, it is recommended the tape around a larger angular range, such as a winding area between 360 ° and 1080 ^0, in particular between 380 ° and 8io ° wrap. In contrast, in smaller demands on the dimensional stability, a smaller angular range, in particular between 15 ⁰ and 180 ⁰ and more preferably between 45 ⁰ and 90 ° may be selected. In this embodiment, the position of the end of the cushioning material strand is preferably determined before the adhesive tape is applied to the outer end layer. In particular, this can reduce the need for adhesive tape.

The winding preferably takes place around a winding axis that is essentially oriented in the vertical direction.

The method is preferably regulated via a controller. The controller controls or regulates, in particular, the transfer of the padding material strand to a device for processing the padding material strand. This is to be understood as meaning, in particular, an introduction of the strand of cushioning material into a device via a strand access, which is delimited by a device housing. In this case, for example, the position of the padding material strand at the strand access can be recorded, with the control receiving feedback as to whether or not a padding material strand section is located in the strand access. In addition, the conveying of the Include a strand of cushioning material in the direction of the winding center, in particular between two deflectors of the winding device. The transfer can also include, in particular, a position detection of the padding material strand at the winding center, the controller receiving feedback as to whether or not a padding material strand section is located in the winding center. The control can in particular be designed in such a way that the winding of the padding material strand around the winding center can be initiated as a function of the sequence of these two responses. In particular, the controller can control and / or regulate the application of the adhesive tape to the outer end position. This can include, in particular, bringing the adhesive tape up to the outer end position and rotating the outer end position around the winding center in order to wrap the outer end position with the adhesive tape. Furthermore, the severing of the adhesive tape applied to the outer end layer by an adhesive tape dispenser can be controlled and / or regulated by the controller. In particular, the separation of the adhesive tape can be initiated by the separation of the padding material strand from the upholstery forming machine, which in turn can be controlled and / or regulated by the controller.

A third aspect of the present invention relates to a winding of cushioning material which comprises a wound strand of cushioning material. The upholstery material strand is produced by a cushioning forming machine from a web-shaped starting material, in particular a roll or a fanfold stack, for example from paper, in particular recycled paper, in such a way that in the middle, along the upholstery material strand, an in particular undulating deformation zone is formed by the upholstery forming machine, which is formed laterally by two in particular, is limited to substantially uniform bead edges. Furthermore, the cushioning material winding comprises an adhesive tape applied to an outer end layer of the cushioning material winding and extending in the longitudinal direction of the cushioning material strand for fastening the outer end layer to the cushioning material winding. According to the third aspect of the present invention, the adhesive tape is arranged and dimensioned in such a way that it at least partially covers the deformation zone and a transition area to a bead edge or to both bead edges of at least two millimeters in a contact-adhesive manner. A particular advantage of the measure according to the invention is that an additional contact adhesive area is created. It is particularly advantageous that the bead edges are usually less corrugated than the deformation zone, so that with the same adhesive tape surface at the transition area to the bead edges, a larger adhesive contact surface can be achieved between the adhesive tape and the upholstery material strand than in the wavy transition area in which depending on the waviness of the deformation zone, the adhesive tape comes into adhesive contact with it only in sections. By using the transition area to one or both bead edges for the adhesive contact, in particular the force required to apply the adhesive tape to the outer layer can be reduced, since the adhesive contact with the bead edges can be made more easily due to the lower waviness. Furthermore, such a cushioning material winding has increased dimensional stability due to the additional adhesive contact at the transition area.

The cushioning material winding according to the invention can in particular be structured according to the method according to the invention and / or the device according to the invention. The method according to the invention can in particular be carried out in such a way that it is suitable for producing the cushioning material winding according to the invention and / or can be carried out with the device according to the invention. Furthermore, the device according to the invention can in particular be structured in such a way that the method according to the invention can be carried out and / or the cushioning material winding according to the invention can be produced.

The cushioning material winding is preferably produced using the device described above or the method described above.

The adhesive tape preferably covers at least one sixth and / or three quarters of the transverse extent of the strand of cushioning material. It has been found that in particular a coverage of at least a quarter and at most half, in particular about a third of the transverse extension of the padding material strand represents a good compromise between the greatest possible adhesive contact and the smallest possible adhesive requirement by adapting the width of the adhesive tape.

The adhesive tape preferably covers the complete transverse extent of the deformation zone of the cushioning material strand and at least one fiftieth, in particular at least one thirtieth, one twentieth, one tenth, one fifth or a third of the transverse extent of at least one, preferably both, beaded edge of the padding material strand. It is particularly preferred if the adhesive tape is applied in the middle of the padding material strand, so that both bead edges are evenly covered with the adhesive tape.

Preferably, the adhesive tape is at least 15 ^0, 45 ^0, 9o ^0, 180 ^0, 360 °, 540 °, wound around the Außenendlage 720 ° or 1080 ^0th

Preferred embodiments of the invention are given in the subclaims. Further advantages, features and properties of the invention are explained by the following description of preferred embodiments of the accompanying drawings, in which:

FIG. 1 shows a schematic representation of a device according to the invention with a cushioning conversion machine from above;

FIG. 2 shows a side view of the device from FIG. 1;

Figure 3 is a schematic representation of a winding device and a

Tape dispenser in which the outer end position around the

Winding center is wound and an adhesive tape dispenser is at rest;

Figure 4 is a schematic representation of a winding device and a

Tape dispenser, in which the tape head to the

Outer end position is pivoted;

Figure 5 is a schematic representation of a winding device and a

Adhesive tape dispenser in which the adhesive tape is applied to the outer end layer;

Figure 6 is a schematic representation of a winding device and a

Tape dispenser, in which the tape head around the

Cutting device are pivoted to the outer end position;

FIG. 7 shows an alternative schematic representation of the processing state in FIG Figure 3;

FIG. 8 shows an alternative schematic representation of the processing state in FIG. 4;

FIG. 9 shows an alternative schematic representation of the processing state in FIG. 6;

Figure 10.1 is a schematic representation of an alternative embodiment of the present invention in a processing state as shown in Figures 6 and 9;

Figure 10.2 shows the schematic representation of Figure 10.1, the

Adhesive tape supply is decoupled from the adhesive tape head;

Figure 11 shows a preferred embodiment of one

Tape swivel mechanism;

FIG. 12 shows a flow chart of the control of the various drives of a preferred embodiment of the present invention;

Figure 13 is a schematic representation of a padding material strand in

Cross-section;

FIG. 14.1 shows a schematic representation of a linear drive with a guide and slide before the adhesive tape head is brought up to the outer end position;

FIG. 14.2 a schematic representation of the linear drive from FIG. 14.1, in which the contact of the adhesive tape head with the outer end position is indicated;

FIG. 14.3 a schematic representation of the linear drive from FIG. 14.2, the carriage being moved further by one movement relative to the adhesive tape head;

FIG. 15 a schematic representation of two possible ones

Tape monitoring devices; and

FIG. 16 shows a schematic representation of a strand deflector.

For the same or similar components, the same or similar reference numerals are used. In the following, schematic representations of a device for processing a strand of cushioning material are provided with the reference number l. Schematic representations of a winding device are provided with the reference number 3. Schematic representations of an adhesive tape dispenser are provided with the reference number 5. Schematic representations of a strand of cushioning material are provided with the reference number 7.

FIG. 1 shows a schematic representation of a top view of a device 1 according to the invention and of a schematically indicated upholstery conversion machine 9. As indicated by the lower arrow in FIG Paper, a padding material strand 7 made. FIG. 2 shows a side view of FIG. 1, in which a collecting container 13 is indicated, in which three processed strands of padding material are indicated in the form of padding material windings. In the following, the reference number 15 is used both for processed upholstery material strands and for upholstery material windings. The winding device 3 is provided for winding the padding material strand 7 around a winding center 21. As can be seen in particular in Figure 1, the adhesive tape dispenser 5 is aligned with the winding device 7 in such a way that the adhesive tape 17 dispensed by the adhesive tape dispenser is only applied to an outer end layer 19 of the padding material strand when the outer end layer 19 is wrapped around the winding center 21. As indicated in FIGS. 1 and 3 to 10, the winding device is preferably formed by two deflectors 23, between which in particular the winding center 21 is located. The winding center 21 is preferably located in the middle of a line 25 connecting the two deflectors 23.

In FIGS. 1 and 2, a device housing 27 for preventing unwanted engagement in the winding device 3 and / or in the adhesive tape dispenser 5 is indicated schematically. As can be seen in particular in FIG. 1, the device housing 27 has a strand access 29 through which the padding material strand 7 can be transferred to the device 1. Transferring is to be understood in particular as the introduction of the padding material strand 7 into the device 1 via the strand access 29. Transferring can also include the conveyance of the padding material strand 7 in the direction of the winding center 21, in particular between two deflectors 23 of a winding device 3. Furthermore, a position detection device can be provided in order to detect whether the padding material strand 7 is in engagement with the winding device 3 and / or whether an unintentional engagement occurs during processing of the padding material strand 7 in the winding device 3 and / or in the adhesive tape dispenser 5. In particular, the position detection device can have a sensor 33 for the position detection at the strand access and a sensor 35 for the position detection on the winding device 3 and / or sensors 33, 35 for detecting a loosening of the cushioning material winding. The sensors 33, 35 can preferably communicate with a controller (not shown) and notify the latter when a strand of padding material 7 is detected in order to start processing, for example by initiating the winding process. The sensors 33, 35 can be designed, for example, as optical sensors such as light sensors, capacitive sensors and / or ultrasonic sensors.

Furthermore, a closing mechanism (not shown) can be provided which can close and release an output opening 37 for outputting the processed padding material strand 15, in particular the padding material winding 15. As can be seen in particular in FIG. 2, the dispensing opening 37 is preferably open in the vertical direction V, so that the cushioning material winding 15 can be removed using gravity.

The winding device 3 and the adhesive tape dispenser 5 will be discussed in detail in connection with FIGS. 3 to 11.

FIG. 3 shows a schematic representation of a winding device 3 and an adhesive tape dispenser 5, in which the outer end layer 19 is wound around the winding center 21 and the adhesive tape dispenser 5 is in the idle state. The adhesive tape dispenser 5 has in particular an adhesive tape head 39 to which an adhesive tape supply 41 in the form of an adhesive tape roll 41 is attached. In this case, the roll of adhesive tape 41 is mounted on the adhesive tape head 39 so as to be rotatable about its axis of rotation (roll axis) 43. Adhesive tape 17 is unwound from the roll of adhesive tape and guided to a counter bearing 45, such as a deflection roller 45. The deflecting roller can in particular be mounted so as to be rotatable about an axis of rotation 47 of the deflecting roller 45. Both the axis of rotation 47 of the deflection roller 45 and the axis of rotation 43 of the roll of adhesive tape 41 are preferably oriented in the vertical direction V. As can be seen in particular in the comparison of FIGS. 3 and 4, the adhesive tape head 39 is mounted movably with respect to the winding device 3. An adhesive tape swivel mechanism 49 is responsible for the movable mounting, which in FIGS. 3 to 6 is designed in the form of a rotatably mounted swivel arm 51 for swiveling the adhesive tape head 39 to the outer end position 19 of the padding material strand 9. For this purpose, one end of the swivel arm 51 is attached to the adhesive tape head 39 and the other end is rotatably mounted. The rotatable mounting is implemented in particular via a swivel joint 53. In particular, the swivel joint 53 defines a swivel axis 55 of the adhesive tape swivel mechanism 49 about which the swivel arm 51 can be rotated. The pivot axis 55 of the adhesive tape pivot mechanism 49 is oriented in particular in the vertical direction V. The adhesive tape head 39 is in particular arranged at a distance from the pivot axis 55, so that a rotary movement 91 of the pivot arm 51 causes the adhesive tape head 39 to pivot in the direction of the outer end position 19. The swivel movement can be carried out by a rotary drive. However, the pivoting movement is preferably carried out by a linear drive, not shown, which is arranged at a distance from the pivot axis 55 of the adhesive tape pivoting mechanism 49, so that a linear movement of the linear drive causes the adhesive tape head 39 to pivot.

As can be seen in particular in FIG. 4, when the adhesive tape head 39 is hinged to the outer end position 19, the adhesive tape 17 is pressed against the outer end position 19 via the counter bearing 45. The pressing force is brought about in particular via the linear drive, not shown, which is articulated to the pivot arm 51. A force vector with which the adhesive tape 17 is pressed against the outer end position 19 via the counter bearing 45 is preferably directed at the winding center 21. This may be particularly realized in that the linear drive in the hinged state of the tape head offset 39 in approximately parallel, preferably by not more than 75 ^0, 6o °, 45 ^0, 30 °, 15 ^0, io ° or 5 ^0, between a connecting line 57 the axis of rotation 47 of the deflection roller 45 and the winding center 21 is arranged. The linear drive (not shown) is preferably aligned in the horizontal direction H.

Following the feeding of the adhesive tape 17 to the outer end layer 19, adhesive tape 17 is wrapped around the outer end layer 19. As indicated in particular in FIGS. 5 and 6, the adhesive tape 17 is preferably wound around the outer end layer 19 by driving the winding device 3 The winding device 3 is realized by two deflectors 23 that can rotate about the winding center. The deflectors 23 are preferably driven via a rotary drive, such as a three-phase motor. In Figure 5, a state is shown in which the winding device 3 is rotated by a winding angle f. Because the adhesive tape 17 is previously pressed against the outer end position 19, in particular via the counter bearing 45, further adhesive tape 17 is unwound from the adhesive tape roll 41 due to the rotary movement of the outer end position 19.

A severing device 59 is provided for severing the adhesive tape 17 after it has been applied to the outer end layer 19. The severing device 59 has, in particular, a severing means 61, such as a cutter 61 for severing the adhesive tape 17 attached to the outer end layer 19. For this, as shown in FIG. 6, a separating pivot mechanism 63 is provided. With the separating pivot mechanism 63, as shown in FIG. 6, the separating means 61 can be pivoted towards the outer end position 19, so that the separating means 61 in particular cuts through the adhesive tape 17 applied to the outer end position 19. In particular, the separating means 61 partially moves into the outer end position 19. As can be seen in particular in the comparison between FIG. 5 and FIG. 6, the separating pivot mechanism 63 is formed in particular by a rotatable mounting of the adhesive tape head 39 on the pivot arm 51 of the adhesive tape pivot mechanism 49. The rotatable mounting is implemented in particular by a swivel joint 65 which connects the adhesive tape head 39 to the swivel arm 51 so that it can be rotated relative to one another. The pivot axis 67 of the swivel joint 65 of the separating pivot mechanism 63 is preferably oriented in the vertical direction V. The separating pivoting mechanism 63 preferably has a linear drive (not shown) for bringing the separating agent towards the outer end position 19. In this case, the linear drive is coupled in particular to the separating pivot mechanism 63 in such a way that a linear movement of the linear drive causes a rotary movement 92 of the separating means 61. The linear drive (not shown) is preferably oriented essentially in the horizontal direction H. As shown in FIGS. 3 to 6, the adhesive tape pivoting mechanism 49 and the severing pivoting mechanism 63 can be implemented by a link chain. In this case, the articulated chain is implemented in that a first swivel joint 53 is attached to the end of the swivel arm 51 facing away from the adhesive tape head 39, which forms the adhesive tape swivel mechanism 49, while a second swivel joint 65 forms the connection between the adhesive tape head 39 and the swivel arm 51 and thereby the Separating pivot mechanism 63 forms. The axes of rotation 67 and 55 of the pivot mechanisms 49 and 63 are preferably aligned parallel to one another, in particular aligned in the vertical direction V. In the embodiment shown here, the pivot axis 67 of the separating pivot mechanism 63 and the axis of rotation 47 of the counter bearing 45 are aligned coaxially to one another.

The severing device 59 further comprises a spring element 69, in particular a spring plate 69, which is arranged relative to the severing means 61 in such a way that a spring force is exerted on the adhesive tape 17 when the adhesive tape 17 is severed. The spring plate and / or the separating means 61 are preferably fixedly, in particular immovably, attached to the adhesive tape head 39. In addition, a second spring element 71 arranged on the opposite side of the separating means 61 can be provided for tensioning the adhesive tape 17. Furthermore, a spring-loaded application device 73 for applying the adhesive tape 17 to the counter bearing 45 can be provided on the adhesive tape head 39. The application device 73 can be tensioned against the counter bearing 45 via a spring element 75, such as a spiral spring.

FIGS. 7 to 9 show alternative schematic representations of a device 1 according to the invention in the processing states as shown in FIGS. 3, 4 and 6. The same or similar reference symbols are used below for the same or similar components.

In the embodiment of the adhesive tape pivoting mechanism 49 shown in FIGS. 7 to 9, it has two pivoting arms 51, 77. The first pivot arm 51 is connected to the adhesive tape head 39. The first pivot arm 51 and the adhesive tape head 39 essentially correspond to the illustration in FIGS. 3 to 6. In addition, however, the pivot arm 51 is connected at its end facing away from the adhesive tape head 39 to a second pivot arm 77, which is connected to a second pivot joint 79 of the adhesive tape pivot mechanism 49 is rotatably connected to a device housing 27. As a result, the amplitude of movement of the adhesive tape head 39 can be set in a larger range and, in particular, can be set by superimposing two pivoting movements.

As can be seen in FIGS. 7 to 9, the device housing 27 can subdivide the device into two chambers 81, 83. A winding chamber 81 can be provided be, in which the winding of the padding material strand 7 takes place around the winding center 21. Furthermore, an adhesive tape dispenser chamber 83 can be provided in which the adhesive tape dispenser 5 is in the idle state and from which it can be pivoted out, as shown in FIGS. 8 and 9, for applying the adhesive tape 17 to the outer end position 19.

FIGS. 7 to 9 show an idealized state in which the outer end layer 19 already lies completely on the penultimate winding layer before the adhesive tape 17 is applied. As described above, and in particular indicated in FIG. 1, it can also be said in particular that the outer end layer 19 is wound around the winding center 21 when a padding material strand end 85 is still protruding from the outer end layer 19.

FIG. 10.1 shows an alternative embodiment of the present invention in which the adhesive tape head 39 is brought up to the outer end position 19 via a linear drive 87. In this embodiment, an adhesive tape pivot mechanism 49 is dispensed with. Nevertheless, a separating pivoting mechanism 63 is also used in this embodiment, which is implemented in particular by a swivel joint 65 and a linear drive, not shown, as described above. Instead of the swivel arm 51, in this embodiment the adhesive tape head 39 is connected to an actuator 89 of the linear drive 87 via the swivel joint 65. Furthermore, in FIG. 10.1, as in FIGS. 7 to 9, it is shown that the pivot axis 67 of the rotary joint 65 of the separating pivot mechanism 63 can be arranged offset to the axis of rotation 47 of the counter bearing 45.

Figure 10.2 shows the embodiment shown in Figure 10.1, in contrast to Figure 10.1, the adhesive tape supply 41 is decoupled from the movements of the adhesive tape head 39, so that the adhesive tape head 39 is independent of the

Tape supply 41 can be moved.

Figure 11 shows a particularly preferred embodiment of the

Adhesive tape dispenser 5 with two pivot arms 51, 77, as shown in FIGS. 7 to 9. The head of the adhesive tape is indicated in simplified form by the large circle 39. As indicated by the dashed lines, the feed movement can be flexibly adapted to the diameter of the outer end position 19 by using two pivot arms, which in FIG elliptical shape of the processed padding material strand is indicated. Rotational movements 91, 93 of pivot arms 51, 77 can be carried out individually or superimposed. In order to compensate for unevenness in the outer end position 19 when the adhesive tape is applied, it has been found to be advantageous to use a sensor 78 which is attached in particular to one of the pivot arms 51, 77, in particular to the pivot arm 51 which is connected to the adhesive tape head 39 is. The sensor is preferably used to detect unevenness, in particular bulges and / or protruding ends of upholstery material, of the outer end position 19. Preferably, the detected information is passed on to a controller (not shown) and / or a drive (not shown) via which the rotary movements 91 , 93 of the pivot arms 51, 77 are adapted to the unevenness. Furthermore, such a sensor 78 can serve as a safety mechanism in which it is queried whether the adhesive tape dispenser 5 is in the rest position before the winding process is started. In addition, such a sensor can be used to detect the intervention of an operator in the device and, in the event of such a detection, to interrupt the processing or to prevent the start of the processing.

FIG. 12 shows an exemplary flow diagram of the control of the various drives in a preferred embodiment of the present invention. The times at which the individual drives are activated are entered on the time axis T. In FIG. 12, no quantitative information is given about the intensity of the drive of the individual drives. These are only given via step curves Si to S5 with the information drive on or drive off, with a 1 of a step curve standing for a driven drive and an o of a step curve standing for a non-driven drive. From top to bottom, the step curve Si represents the linear drive of the separating pivoting mechanism 65, the step curve S2 the linear drive of the adhesive tape pivoting mechanism 49, the step curve S3 a rotary drive of the winding device 3, the step curve S4 the drive of a closing mechanism, such as a roller door, for closing and opening a dispensing opening 37 for the output of a processed upholstery material strand 15, in particular a cushioning material winding 15, and the step curve S5 a drive of a cushioning conversion machine 9 for converting a web-shaped starting material 11 into a padding material strand 7. Several, preferably all, of the drives are controlled and / or via a controller regulated. It can be controlled via input units such as tablet computers or smartphones with standard applications such as Bluetooth, WLAN and / or LAN, or with an integrated modem based on transmission technologies such as UMTS or LTE.

The point in time To stands for the actuation of the device 1 according to the invention. As a result of this actuation, the drive of the closing mechanism is activated in order to close the dispensing opening 37. The point in time at which the dispensing opening 37 is closed is denoted by Ti. Subsequently, the rotary drive of the winding device 3 is activated, possibly with a certain time delay, in order to bring the deflectors 23 into a position in which the padding material strand 7 can pass between them. The point in time at which the deflectors are in the desired position is denoted by T2. If necessary with a certain time delay, the drive of the upholstery conversion machine 9 is started in order to convert web-shaped starting material 11 into a padding material strand 7 and to transfer it to the device 1, in particular to feed it to the winding device 3, in particular to convey it between the two deflectors 23. Between the times T2 and T3, the padding material strand 7 preferably passes the sensors 33 and 35, with T3 marking the time and the padding material strand 7 passing both sensors 33, 35, in particular the sensor 35, which is responsible for the position detection on the winding device 3 Has. As a result, the drive of the winding device 3 is preferably started so that the padding material strand 7 is caught between the two deflectors and, as a result of the rotation of the deflectors 23, the padding material strand 7 is wound around the winding center 21. The point in time T4 marks the point in time at which a predetermined length of the upholstery material strand 7 is produced by the upholstery conversion machine 9 and this length is cut off by the upholstery conversion machine. Accordingly, the drive of the upholstery conversion machine 9 is also switched off at time T4. Nonetheless, the winding process is continued in order to also wind the upholstery material strand sections remaining in the upholstery conversion machine 9 around the winding center 21 until the outer end layer 19 is also wound around the winding center 23.

The point in time at which the outer end layer 19 is wound around the winding center is marked in particular with the point in time T5. At this point in time, the linear drive of the adhesive tape pivoting mechanism 49 is activated, so that this drives the adhesive tape head 39, in particular by converting the linear movement into a The pivoting movement is brought up to the outer end position 19 via the adhesive tape pivoting mechanism 49, in particular in such a way that the adhesive tape contacts the outer end position 19. As a result, by continuously driving the winding device 3, the adhesive tape 17 is wound around the outer end layer 19 between times T5 and T6. The point in time T6 marks the point in time at which the linear drive of the separating pivot mechanism 63 is activated. The linear drive is in particular coupled to the separating pivot mechanism in such a way that the linear movement causes a pivoting movement of the separating means 61 in the direction of the outer end position. The point in time T7 marks the point in time at which the spring element 69 of the severing device 59 comes into contact with the adhesive tape 17 and exerts an impulse on it, in particular tensions it. The point in time T8 marks the point in time at which the release agent 61 cuts through the adhesive tape 17 at the outer end position. After the adhesive tape 17 has been severed, in particular the linear drive of the severing pivot mechanism 63 is driven in the opposite direction, so that the severing device 59, in particular the severing means 61, is pivoted away from the outer end position again at time T9. The time period between time T6 and T9 can preferably be set via the control and is in particular set to a time of 0.5 to 3 seconds, in particular 1 to 2 seconds.

After the severing process has taken place, the linear drive of the adhesive tape pivoting mechanism 49 is also driven in the opposite direction in order to pivot the adhesive tape head 39 away from the outer end position again. The point in time at which the adhesive tape head is swiveled back into the rest position is marked with the point in time T10. Between times T10 and Tio ', the drive of the winding device is preferably switched off in order to accelerate the winding device 3 in the opposite winding direction, in particular turning the winding device back and forth, by driving the drive of the winding device 3 again between times Tio' and To cause Tu in order to release the processed padding material strand 15, in particular the padding material winding 15, from the winding device. The final speed corresponds approximately to the speed at which the first winding layer is wound around the winding center 21. This is intended in particular to support the removal of the processed padding material strand 15 using gravity. As soon as all drives come to a standstill, which is indicated by the point in time T12, the drive of the locking mechanism is in the opposite direction driven to release the output opening 37 for the removal of the processed padding material strand 15, in particular the padding material winding 15. The point in time T13 marks the point in time at which the dispensing opening 37 is released again and removal can take place.

As can be seen in particular in FIG. 12, the application of the adhesive tape 17 and the severing of the adhesive tape can take place with the measures according to the invention without interrupting the winding process, whereby the processing times can be reduced in particular. Furthermore, by using the force of gravity to remove the processed padding material strand 15, in particular in combination with the acceleration of the same via the winding device 3, it is possible to remove the processed padding material strand 15 without the need for an additional ejection mechanism and an associated additional drive.

Figure 13 shows a schematic representation of a padding material strand 7, which is manufactured by an upholstery forming machine 9 from a web-shaped starting material 11 in such a way that in the middle, along the cushioning material strand, a particularly wavy deformation zone 95 impressed by the upholstery forming machine 9 is formed, which is formed laterally by two in particular essentially uniform bead edges 97 is limited. According to the invention, such a padding material strand 7 is wound to form a padding material winding 15. Furthermore, an adhesive tape 17 extending in the longitudinal direction L of the upholstery material strand 7 for fastening the outer end layer 19 to the cushioning material winding 15 is applied to the outer end layer 19 of the upholstery material strand 7. The adhesive tape 17 is arranged and dimensioned in such a way that it at least partially covers the deformation zone 95 and a transition area 99 to one or both bead edges 97 of at least 2 mm in a contact-adhesive manner. The transverse extension of the upholstery material strand 7 in the transverse extension direction Q is marked in particular by Qi in FIG. The transverse extent of the deformation zone 95 in the transverse direction of extent Q is identified by Q2. The transverse extent of the deformation zone 95 including the transition areas 99 in the transverse direction of extent Q is denoted by Q3.

FIG. 14.1 shows a schematic representation of a linear drive 101 with guide rail 103 and carriage 104 before the adhesive tape head 39 is brought up to the outer end position (not shown in FIGS. 14.1 to 14.3). Figure 14.2 shows a schematic representation of the linear drive from FIG. 14.1, the adhesive tape head 39 and the carriage 105 being moved together in a translatory manner compared to the representation in FIG. 14.1, as indicated by the two arrows emanating from the carriage 105 and the adhesive tape head 39 in FIG. 14.1. Here, FIG. 14.2 is intended to represent the state in which the adhesive tape head 39 comes into contact with the outer end position. In the contact area of the outer end position and the adhesive tape head, a force braking, in particular stopping, the adhesive tape head 39 acts from the outer end position on the adhesive tape head 39, which is indicated by the arrow directed to the adhesive tape head 39. As a result of the translational mounting of the carriage 105 with respect to the adhesive tape head 39, the carriage 105 can continue the linear movement, as indicated by the arrow pointing away from the carriage 105, while the adhesive tape head 39 is braked, in particular stopped, by the outer end position.

FIG. 14.3 shows a schematic representation of the linear drive from FIG. 14.2, the carriage 105 being moved by a movement relative to the adhesive tape head 39 in the direction of the arrow pointing away from the carriage 105 in FIG. 14.2 in comparison with FIG. 14.2. This is made possible in particular by the translational mounting of the carriage 105 with respect to the adhesive tape head 39. As indicated in FIG. 14.3, the slide 105 and the adhesive tape head 39 are coupled to one another via a suspension 107, here in the form of a spiral spring 107, that the translational relative movement between the slide 105 and the adhesive tape head 39 causes the spiral spring 107 to be compressed. As a result, a spring force acting between the adhesive tape head 39 and the carriage 105 is generated, which brings about a spring preload between the adhesive tape head 39 and the carriage 105. Furthermore, the spring force can exert a pressing force on the outer end position via the adhesive tape head 39.

FIG. 15 shows a schematic illustration of two possible adhesive tape monitoring devices 109, 111, namely one

Adhesive tape monitoring device 111 with an inductive sensor and an adhesive tape monitoring device 109 with an optical sensor. The inductive sensor detects a rotary movement of a shaft 113, which rotatably supports the roll of adhesive tape 41, about the axis of rotation 115 of the roll of adhesive tape 41.The optical sensor is aligned with the axis of rotation 115 of the roll of adhesive tape 41, in particular aligned with the axis of rotation 115 in the radial direction to the axis of rotation 115. The control of the adhesive tape monitoring device 109 determines the diameter of the adhesive tape roll 41 via the distance between the outer end position 117, 119 and the sensor. In FIG. 15, an outer end position 117 of a new roll of adhesive tape is shown by way of example with solid lines and an outer end position 119 of a roll of adhesive tape is shown with dashed lines, which represents the predetermined minimum diameter at which an alarm signal is triggered.

FIG. 16 shows a schematic representation of a strand deflector 121. In particular, the strand deflector 121 is mounted so that it can rotate about an axis of rotation 123. In particular, the axis of rotation extends parallel to the direction of gravity G. In particular, the strand deflector 121 has a tapering cross section. In particular, the strand deflector 121 tapers in the manner of a cone. In particular, the strand deflector 121 tapers in the gravitational direction G.

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

List of reference symbols

1 device for processing a strand of upholstery material

3 winding device

5 Tape dispenser

7 strand of upholstery material

9 Upholstery forming machine left sheet-like starting material

13 Collecting container

15 Padding material winding / processed padding material strand

17 tape

19 Outer end position of the padding material strand

21 Baby changing center

23 deflectors

25 connecting line between the deflectors

27 Fixture Housing

29 strand access

33 Sensor for position detection at the strand access

35 Sensor for position detection on the wrapping device

37 Dispensing opening

39 Tape head

41 Tape supply / tape roll

43 Axis of rotation / roll axis of the roll of adhesive tape

45 Counter bearing / pulley

47 Axis of rotation of the pulley

49 Tape Pivot Mechanism

51 Swivel arm of the tape swivel mechanism

53 Swivel joint of the swivel arm

55 Pivot axis of the tape panning mechanism

57 Connection line between the winding center and the axis of rotation of the deflection roller in the hinged state of the adhesive tape head 59 Separating device

61 Release agent / cutter

63 Pivoting Separator Mechanism

65 Swivel joint of the partition pivot mechanism 67 Pivot axis of the separation pivot mechanism / swivel joint

69 Spring element / spring steel sheet

71 second spring element / spring plate

73 Insertion device

75 spring element

77 second swivel arm of an adhesive tape swivel mechanism

78 sensor

79 Second swivel joint of the tape swivel mechanism

81 changing room

83 Tape Dispenser Chamber

85 End of padding material

87 linear drive

89 Actuator of the linear drive

91 Rotation of the swivel arm 51

92 Rotation of the tape head 39

93 Rotation of the swivel arm 77

95 deformation zone

97 ridges

99 transition area

101 linear drive

103 Guide / guide rail

105 sledges

107 Suspension / spring / spiral spring

109 optical tape monitoring device

111 inductive tape monitoring device

113 Shaft of the tape roll / tape supply

115 Axis of rotation of the roll of tape

117 Outer end position of a new roll of adhesive tape

119 Outer end position of a roll of adhesive tape with a predetermined minimum diameter

121 strand deflector

123 Axis of rotation of the strand deflector

F winding angle

V vertical direction

H horizontal direction

T timeline S step curves

L Longitudinal direction of the padding material strand

G direction of gravitation

Q Direction of transverse extent of the strand of upholstery material

Qi transverse extension of the strand of upholstery material

Q2 Transverse extension of the deformation zone

Q3 Transverse extension of the deformation zone including the transition area

Claims

Expectations

1. Device (l) for processing a padding material strand (7), in particular into a padding material winding (15), which is manufactured by a padding forming machine (9) from a web-shaped starting material (11), in particular a roll or a fan-fold stack, for example made of paper , comprising: a winding device (3) for winding the padding material strand around a winding center (21) and an adhesive tape dispenser (5) which is aligned with the winding device (3) in such a way that the adhesive tape (17) dispensed by the adhesive tape dispenser (5) only then is applied to an outer end layer (19) of the padding material strand when the outer end layer (19) is wound around the winding center (21).

2. Device (1) according to claim 1, wherein the adhesive tape dispenser (5) has an adhesive tape head (39) which is movably mounted with respect to the winding device (3) and which in particular has an adhesive tape supply (41), such as an adhesive tape roll (41), and / or which has a counter-bearing (45), such as a deflection roller, for pressing the adhesive tape against the outer end position (19) and / or which is mounted so movably, in particular when applying adhesive tape to the outer end position (19), is spring-damped in such a way that it follows a height profile the circumference of the outer end position (19) follows.

3. Device according to claim 2, wherein the adhesive tape dispenser (5) has an adhesive tape pivoting mechanism (49), in particular a rotatably mounted pivot arm (51), for pivoting the adhesive tape head (39) to the outer end position (19), in particular wherein the adhesive tape pivoting mechanism (49) is spring-damped, preferably has a gas pressure spring, and / or wherein the pivot axis (55) of the adhesive tape pivot mechanism (49) is oriented essentially in the vertical direction.

4. Apparatus according to claim 2 or 3, wherein the adhesive tape dispenser (5) has a linear drive for moving the adhesive tape head (39) to the outer end position (19), in particular wherein the linear drive is provided with an adhesive tape pivoting mechanism (49) for pivoting the adhesive tape head (39). at the outer end position (19) is coupled so that a linear movement of the linear drive causes the adhesive tape head (39) to pivot, and / or wherein the drive axis of the linear drive is aligned essentially in the horizontal direction.

5. The device according to claim 2, wherein the adhesive tape dispenser (5) has a linear drive (101) for moving the adhesive tape head (39) to the outer end position (19), the linear drive (101) having a guide (103), in particular a guide rail, and has a slide (105) mounted in translation with respect to the guide (103), in particular wherein the slide (105) is connected to the adhesive tape head (39) in such a way that the adhesive tape head (39) follows a particularly translational movement of the slide (105), and / or wherein the drive axis of the linear drive is aligned essentially in the horizontal direction.

6. The device according to claim 5, wherein the adhesive tape head (39) is mounted in a translatory manner with respect to the carriage, in particular in a translational manner in the same direction as the mounting of the carriage in relation to the guide.

7. The device according to claim 6, wherein the adhesive tape head (39) and the carriage (105) are coupled to one another via a suspension (107), in particular a spring such as a spiral spring, that a translational relative movement between the carriage (105) and the adhesive tape head (39) causes a spring preload between the carriage (105) and the adhesive tape head (39) and / or causes a pressing force of the adhesive tape head (39) on the outer end position (19).

8. The device according to claim 6 or 7, wherein the device has a sensor, in particular an induction sensor, for detecting an in particular translational relative movement between the adhesive tape head (39) and the carriage (105), in particular wherein the sensor is connected to a control of the linear drive ( 101) is coupled so that the controller stops a movement of the linear drive (101) when the sensor detects a predetermined relative movement between the adhesive tape head (39) and the carriage (105).

9. Device according to one of claims 2 to 8, wherein the device comprises a separating device (59) which is movably mounted with respect to the winding device (3) and has a separating means (61), such as a cutting edge, for separating the adhesive tape (19) attached to the outer end layer (19). 17).

10. The device (l) according to claim 9, wherein the separating device (59) has a separating pivot mechanism (63) for pivoting the separating means (61) towards the outer end position (19), in particular through the adhesive tape (17) to the outer end position, in particular wherein the separating pivot mechanism (63) is spring-damped, preferably has a gas pressure spring, and / or wherein the pivot axis (67) of the separating pivot mechanism (63) is oriented essentially in the vertical direction.

11. The device (1) according to claim 10, wherein the separating device (59) is coupled to the adhesive tape head (39), in particular is firmly connected, and / or that the separating pivot mechanism (63) is realized by a pivotable mounting of the adhesive tape head (39) , in particular by a pivotable mounting of the adhesive tape head (39) with respect to a pivot arm (51).

12. Device (1) according to one of claims 9 to 11, wherein the separating device (59) has a linear drive for moving the separating agent (61) to the outer end position (19), in particular through the adhesive tape (17) to the outer end position, in particular wherein the linear drive is coupled to a separating pivot mechanism (63) in such a way that a linear movement of the linear drive causes a pivoting movement of the separating means (61) and / or the drive axis of the linear drive is aligned essentially in the horizontal direction.

13. Device (1) according to one of claims 9 to 12, wherein the separating device (59) has a spring element (69), in particular a spring plate, which is arranged in relation to the separating means (61) in such a way that there is a spring force when the adhesive tape is separated exerts on the adhesive tape (17), in particular tensions it.

14. Device (1) according to one of claims 9 to 13, wherein the adhesive tape dispenser (5) and / or the winding device (3) and / or the severing device (59) is controlled via a controller.

15. Device (1) in particular according to one of the preceding claims for processing a padding material strand (7), in particular into a padding material winding (15), which is produced by an upholstery forming machine (9) from a web-shaped starting material (11), in particular a roll or a fanfold stack, for example made of paper, comprising: a winding device (3) for winding the padding material strand around a winding center (21) and an adhesive tape dispenser (5) for applying adhesive tape to the strand of cushioning material, the adhesive tape dispenser (5) and the winding device (3) being arranged relative to one another in such a way that they can be moved towards one another in order to apply the adhesive tape to the strand of cushioning material (7).

16. Device (1) according to one of the preceding claims, comprising a device housing (27) for preventing unwanted engagement in the winding device (3) and / or in the adhesive tape dispenser (5), which has a strand access (29) through which the cushioning material strand (7) the device (1) can be transferred.

17. Device (1) according to one of the preceding claims, comprising a position detection device which is designed to detect whether the padding material strand (7) is in engagement with the winding device (3), whether an unintentional engagement during processing of the padding material strand (7 ) takes place in the winding device (3) and / or in the adhesive tape dispenser (5), and / or whether the processed padding material strand is released, in particular the position detection device having a sensor (33) for position detection at a strand access (29) of the device ( 1) and a sensor (35) for position detection on the winding device (3).

18. Device according to one of the preceding claims, wherein the device has at least one strand deflector (121) for deflecting the padding material strand between a strand access (29) and the winding device (3), in particular wherein the strand deflector (121) is rotatable about a particularly in the gravitational direction (G) extending axis of rotation (123) is mounted and / or wherein the strand deflector (12) has a cross-sectional area tapering in particular in the gravitational direction (G).

19. Device (1) according to one of the preceding claims, comprising an adhesive tape monitoring device (109, 111) which has a sensor, such as an inductive sensor or an optical sensor, for monitoring the application of the adhesive tape to the outer end position, in particular the sensor for this purpose is designed to detect a movement, in particular a rotational movement, of an adhesive tape supply providing the adhesive tape.

20. Device (1) according to one of the preceding claims, comprising an adhesive tape monitoring device (111) which is used to monitor the Adhesive tape consumption has an inductive sensor which is designed to detect the rotation of an adhesive tape supply (41) providing the adhesive tape, in particular wherein the detected rotation is converted into adhesive tape consumption by a controller of the adhesive tape monitoring device (111), in particular wherein the controller is designed for this purpose to trigger an alarm signal when a predetermined tape consumption is reached.

21. Device (1) according to one of the preceding claims, comprising an adhesive tape monitoring device (109) which has an optical sensor for monitoring the adhesive tape consumption which is designed to detect the diameter of an adhesive tape supply (41) providing the adhesive tape, in particular wherein a Control of the

The adhesive tape monitoring device (109) is designed to monitor the detected diameter, in particular the controller being designed to trigger an alarm signal if the diameter falls below a predetermined minimum.

22. Device (1) according to one of the preceding claims, wherein the axis of rotation of the winding device (3) is oriented essentially in the vertical direction and / or wherein the winding device (3) has at least two deflectors, in particular two prongs.

23. A method for processing a strand of upholstery material, in particular with a device (1) according to one of the preceding claims, which is manufactured by a cushioning forming machine (9) from a web-shaped starting material (11), in particular a roll or a fan-fold stack, for example made of paper, wherein the strand of cushioning material (7) is wound around a winding center (21) and an adhesive tape (17) is only applied to an outer end layer (19) of the strand of cushioning material when the outer end layer (19) has been wound around the winding center (21).

24. The method according to claim 23, wherein the adhesive tape (17) is brought up to the outer end position (19) before being applied to the outer end position (19), in particular wherein the movement is brought about by means of a pivoting movement and / or by means of a linear movement, in particular a pivoting movement of the adhesive tape to the outer end position (19) takes place and / or wherein the pivoting movement and / or the linear movement is preferably carried out by means of a spring-damped drive, in particular by means of a spring-damped linear drive, and / or wherein the adhesive tape (17) is fed to the outer end layer (19) together with an adhesive tape supply (41), such as a roll of adhesive tape.

25. The method according to claim 24, wherein the adhesive tape (17) is applied to the outer end position via an adhesive tape head (39) which is brought up to the outer end position (19) by a linear movement before being applied to the outer end position (19).

26. The method according to claim 25, wherein the adhesive tape head (39) is brought to the outer end position via a carriage of a linear drive, the linear movement of the adhesive tape head being braked, in particular stopped, by contact with the outer end position, while the carriage continues the linear movement so that a relative movement occurs between the carriage (105) and the adhesive tape head (39).

27. The method according to claim 26, wherein the relative movement between the tape head and the carriage is detected, in particular measured by means of a sensor such as an induction sensor, in particular wherein the linear movement of the carriage is interrupted, in particular interrupted by a controller, as soon as a predetermined, in particular a relative movement between the tape head and the carriage stored in a controller is detected.

28. The method according to claim 26 or 27, wherein the relative movement between the adhesive tape head and the carriage causes a spring tension between the carriage and the adhesive tape head (39) and / or a pressure force of the adhesive tape head on the outer end position, in particular such that the adhesive tape head has a height profile the circumference of the outer end position follows.

29. The method according to any one of claims 23 to 28, wherein before the application of the adhesive tape, the radial extent of the outer end position, in particular at the position to which the adhesive tape (17) is brought, is detected in order to prevent a movement of the adhesive tape towards the outer end position (19). to adapt to the radial extent of the outer end position (19), and / or the circumferential position of the end of the padding strand (85) is detected in order to bring the adhesive tape (17) in close proximity to the end of the padding strand (85), in particular to meet the need for adhesive tape for fastening the end of the padding ( 85) to reduce.

30. The method according to any one of claims 23 to 29, wherein the radial extension of the outer end layer (19) when the adhesive tape is applied continuously or is detected in sections in order to adapt the adhesive tape position and / or the force with which the adhesive tape (17) is pressed against the outer end position (19) to the radial extent of the outer end position (19).

31. The method according to any one of claims 23 to 30, wherein the adhesive tape (17) attached to the outer end position (19) is severed, in particular after it has been essentially completely wound onto the outer end position (19), in particular wherein the severing of the adhesive tape on the Outer end position (19) and / or by means of a pivoting movement and / or by means of a linear movement of a separating means, such as a cutter.

32. The method according to any one of claims 23 to 31, wherein the separation takes place by the method of a release agent towards the, in particular, smooth surface of the adhesive tape opposite the adhesive surface.

33. The method according to any one of claims 23 to 32, wherein the adhesive tape (17) is stretched prior to the severing process thereof, in particular is stretched around the outer end position (19) and / or in particular is stretched by pressing the adhesive tape against the outer end position (19).

34. The method according to any one of claims 23 to 33, wherein the processed padding material strand, in particular the padding material winding (15), in particular after the application and separation of the adhesive tape, is accelerated in the winding direction and / or in the direction opposite to the winding direction, around the processed padding material strand (7) to be released from a device (1) with which it was processed.

35. The method according to any one of claims 23 to 34, wherein the adhesive tape (17) extends essentially in the vertical direction when it is applied to the outer end layer (19) and / or wherein the adhesive tape (17) extends by at least 1080 ⁰ , 72o ⁰ , 54o ⁰ , 36o ⁰ , 180 ⁰ , 90 °, 45 ⁰ or 15 ⁰ around the winding center (21).

36. The method according to any one of claims 23 to 35, wherein the winding takes place around a winding axis oriented essentially in the vertical direction and / or around at least two deflectors, such as prongs, which are spaced apart from the winding axis.

37. The method according to any one of claims 23 to 36, wherein the method is regulated via a controller which, in particular, controls and / or regulates the following steps:

- Transfer of the padding material strand (7) to a device (1) for processing the padding material strand (7);

- Wrapping the padding material strand (7) around the winding center (21);

- Applying the adhesive tape (17) to the outer end position (19); and or

- Separation of the adhesive tape (17) applied to the outer end layer (19) from an adhesive tape dispenser (5), in particular wherein the separation of the adhesive tape (17) is initiated by the separation of the padding material strand (7) in the upholstery forming machine (9).

38. Padding material winding (15), comprising a wound padding material strand, which is manufactured by an upholstery forming machine (9) from a web-like starting material (11), in particular a roll or a fanfold stack, for example made of paper, in such a way that in the middle, along the padding material strand (7 ) an in particular wavy deformation zone (95) is formed, which is embossed by the upholstery forming machine (9) and is laterally bounded by two in particular essentially uniform bead edges (97), and one applied to an outer end position (19) of the upholstery material strand (7) is in Adhesive tape (17) extending in the longitudinal direction of the padding material strand (7) for fastening the outer end layer (19) to the padding material winding (15), characterized in that the adhesive tape (17) is arranged and dimensioned in such a way that it at least partially and a transition area (99) to one or both bead edges (97) of we Covered with contact adhesive at least 2 mm.

39. Padding material winding (15) in particular according to claim 38, which is produced by a device (1) according to one of claims 1 to 22 and / or according to a method according to one of claims 23 to 37.

40. Padding material winding (15) according to one of claims 38 to 39, characterized in that the adhesive tape (17) covers at least one sixth and / or at most three quarters of the transverse extension (Qi) of the padding material strand (7).

41. Padding material winding (15) according to one of claims 38 to 40, characterized in that the adhesive tape (17) covers the complete transverse extent (Q2) of the deformation zone (95) of the padding material strand (7) and / or at least one fiftieth, in particular at least one thirtieth , one twentieth or one tenth, of the transverse extent of at least one, preferably both, bead edges (97) of the padding material strand (7).

42. cushioning material winding (15) according to one of claims 38 to 41, characterized in that the adhesive tape (17) by at least 15 ⁰ , 45 ⁰ , 90 °, 180 ⁰ , 360 °, 540 °, 720 ° or 1080 ⁰ by the Outer end position (19) is wound.