EP2151389B1 - Method and device for frontal packaging a material web roll - Google Patents

Abstract

The method involves guiding web material e.g. tissue web, rolls (2.1-2.n) to a roller bearing device (3), where the rolls have longitudinal axis and front sides (11.1, 11.2). Front covers (6A, 6I, 6.1A, 6.1I, 6.2A, 6.2I) are ripped out from stretched packing web materials (14, 15, 14.1, 14.2) in a separating region of devices (8, 9) for ripping out of blanks, based on the requirement of the covers. The covers are taken up through a defined removal region by devices (5.1, 5.2) for receiving and positioning of the covers positioned at front sides. An independent claim is also included for a device for packing rolls of web material.

Description

The invention relates to a method for the end-side packaging guided on a roller bearing device and a longitudinal axis and two end faces having rollers, in particular web rolls by applying end caps.

The invention further relates to a device for the frontal packaging of web rolls.

The term "roll" is generally understood to mean a unit of a winding core wrapped with a material web of any kind. The material web may in this case be formed as a fibrous web, in particular paper, cardboard, tissue, plastic or other web, all of which must be handled in a similar manner. The invention is applicable to any type of material web accordingly. By way of example, the invention will be described below with reference to a roll of web material to be packaged in the form of a paper roll, the invention preferably being used for such material web rolls but not intended to be limited thereto.

For handling material web rolls, these are often cut after the manufacturing process in a slitter to the required width for further use and wound into web rolls. Before being transported to the consumer, they are packaged with packaging material for protection against adverse environmental conditions and damage, as well as for affixing markings in a packing plant. In this process, the respective roll of web material is wrapped with a packaging material web in the circumferential direction, the end faces protected by a separate packaging element in the form of so-called end cover become. For this purpose, an end cover unit of an inner and an outer end cover is often provided on the respective end face. The inner end covers are applied to the front sides. After wrapping with the packaging material web in the circumferential direction, in which a foldable edge projecting beyond the end faces is left, the individual inner end cover is fixed in its position relative to the material web roll in the axial direction by folding over the foldable edge. At the folded and the respective end face partially overlapping fold edge and in addition to the inner end cover then the outer end cover is attached. About the fixation of the outer end cover on the folding edges and the inner end cover the position of the inner end cover is also fixed. For this purpose, the individual outer end cover is provided on the side to be joined to the inner end cover with an adhesive, in particular adhesive or a coating which melts under heat, and is pressed against the latter, as well as the folded edge. The cycle time for packaging a roll of web material is determined as a function of the time required for attaching the peripheral envelope and positioning the inner end cover, wherein preferably selected for realizing a continuous operation in one of the following workstations for attaching the outer end cover the same cycle time as for the wrapping and attachment of the inner end cover becomes. For this purpose, the end covers are held in front-end stacks in staging areas which are arranged within the effective area of devices for removing and positioning the end covers, as in FIG EP 0 610 759 A1 described by way of example. In this case, a plurality of stacks with covers of the same or different dimensions are preferably provided in the respective staging areas, which allow a simple and quick retrofitting and / or but should also take into account the variety of lids. The removal takes place by means of the corresponding devices of the respective end cap stack, which contains the required end cap sizes and qualities, it must be ensured that only ever only a front cover is removed. Furthermore, the position of a single end cap stack in the staging area is arbitrary, so that the device for removing and handling the end cap, In particular, the manipulator requires a certain amount of time to locate the desired end cover within its effective range and to be adjusted in terms of its pivoting movements to this position of the end cover stack and the current stack height.

In another embodiment according to EP 0 327 866 A1 a Stirndeckelspeicher- and feeding device is provided, in which in an investment station the end faces of a roll by a respective application head, an end cover is supplied. A transport device places the end covers from the storage locations to the landing station. This has for this purpose a transport device and an alignment station which centers the end covers with respect to the rollers with respect to their location. The solution described in this document is relatively expensive in terms of space requirements and to be realized transport device.

The known from the prior art embodiments also have the disadvantage that the maximum number of lid stack is severely limited by the required accessibility of these handling facilities and by the required accessibility of the provision area for setup operations. The end covers are tapped from a front cover stack, isolated and applied to the web roll. These actual dead times for the packaging process significantly determine the cycle time for packaging a web roll.

In case of disturbances within these processes, it can also lead to errors when creating the front cover or loss of the front cover. Affects this an inner end cover, as a result of the outer end cover over the entire surface is glued directly to the front side of the web roll, which precludes a subsequent unwinding. The entire web roll is rejected as a committee. Furthermore, the known types of packaging are very packaging material-intensive, because the operator of such systems must stockpile a variety of different end cap sizes and qualities. The individual end caps are To order and stockpile by the manufacturer in a forward-looking manner, which is reflected in a high organizational effort, in particular in order to provide the required sizes and qualities in a timely manner.

It is off US 2 368 213 A a device is known in which the rolls to be packaged are transported during the packaging process perpendicular to their longitudinal axis by juxtaposed individual stations in which they are packed in cycles, gradually, the last packaging station is suitable, each aligned parallel to the end faces of the roll Packing paper wrapping end caps and to press with the role in each case a straight-line lifting movement of the likewise end face aligned pressing elements. Such a device is not retrofittable in the aforementioned devices. In addition, a decisive disadvantage is that the role must be raised and dropped from station to station. This is associated with today desired cycle times with an extreme energy consumption and a high risk of damage to the role. Finally, the operator of such a system is limited to a very narrow possible processing range of roll widths, as only one roll can ever be packed between the two opposing presses.

The invention is therefore based on the object of further developing a method and a device for the front-side packaging of web rolls in such a way that the cycle time for packaging is considerably reduced with reasonable energy expenditure and gentle handling of the rolls to be packed, by reducing dead times which are required for the previously conventional gripping, Separating and attaching the end covers are required to be avoided.

The solution according to the invention is characterized by the features of claims 1 and 9. Advantageous embodiments are described in the subclaims.

The method for the end-side packaging of guided on a roller bearing device and a longitudinal axis and two end faces having rollers, in particular web rolls by applying end caps according to the invention is characterized in that depending on a requirement of end caps for a material web roll to be wrapped, the end cover in at least one separation region of a device be cut out for separating out of blanks in the form of end caps from a flat stretched packing material web and taken over a defined at this removal area by means of at least one device for receiving and positioning the end cover and positioned on the front side of the web roll to be packaged.

The term "effective range" of the device for receiving and positioning the end covers the maximum spatial extent of the working area, in particular the pivot radius of the device is understood, which is characterized by the functional positions "removal" in the removal area and "positioning" in the system of the end cover.

The solution according to the invention is characterized by the fact that the rounds in the form of end covers intended for packaging the end faces of rollers, in particular web rolls, are no longer arranged in end caps in the area of action of the device for receiving and positioning on the front side and are kept in stock, but are currently held Depending on the requirements of the actually to be packaged role, in particular web roll, be provided promptly. This makes it possible, on the one hand by the direct tap of the corresponding end cover to minimize the dead times in finding the required end cap stack and in the calibration of the pivoting movement of the device and to avoid entirely. In versions with multiple end cap stacks in the staging area, these dead times were particularly due to the time required to control the required end cap stack, the adjustment of the movement of the device to the position of the end cap stack and the changing height and the Lifting of each upper end cover characterized by singling this front cover from the remaining front cover stack.

Due to the direct only when request cutting out a front cover with required geometry and / or dimensioning, it is no longer necessary to stockpile and manage any appropriate cover stack in the staging area, since now cut out the appropriate formats directly from the packaging material according to the requirement and provided promptly can be.

Due to the removal from a predefined removal area, it is also possible to make the device for receiving and positioning easier because the removal area can be made stationary and thus for each of the web rolls to be packaged, regardless of their dimensions, which determines the size of the end cover , is identical. The device for receiving and positioning can thus be made much simpler and cheaper, since this is characterized by a nearly identical sequence of movements for all material web rolls to be packaged. A calibration of the gripper of such a device for receiving and positioning end covers required from the prior art after the refilling of end cover stacks can be dispensed with. Due to the omission of the required storage of end caps stack only a corresponding means for cutting out end caps with the required parameters is required. The space requirement within the packing plant can be considerably minimized overall. The provision process for the packaging material, in particular the end caps can be fully integrated into the packaging process. Due to the direct detachment from the packaging material, a part of the added value of the production of the end cover in the packaging process of the role itself can be integrated, since the packaging material can be purchased as a web goods considerably cheaper than finished cut, supplied end cover.

The separation from the packaging material web is carried out in a timely manner, depending on the requirement for the end face to be covered of the roll to be packed, that is, there are no front cover produced in stock, but in fact only depending on the upcoming packaging operations.

The removal area is maintained for all packaging operations, that is, is stationary or stationary, whereby the movement sequence of the device for receiving and positioning a single end cover can be considerably simplified and complex calibration processes can be omitted.

Advantageously, the end cover undergoes at least one change in the orientation of the surface coming into contact with the roller and / or the surface forming its cutting edge between removal and positioning. In this way, the method is very flexible, since a very different processing roller sizes, especially roller widths in a simple manner possible. In addition, such a method is particularly independent of the transport direction of the roll to be packaged. In addition, such a variant makes particularly low demands on the environment of the device for carrying out the method and can thus contribute a considerable part to the cost optimization in the context of projecting a system.

The removal region can preferably coincide directly with the separation region according to an advantageous embodiment. This requires that the separation process must be coordinated with respect to its timing to the processes in the device for the packaging of web rolls, in particular a separation can always be done only after tapping the herausgetrennten end cover and thus the distance from the separation area. In this case, the cycle times of the device for packaging a material web roll by the duration of transporting the web roll in the wrapping area, the removal and positioning Characterized by separated from an endless web of packaging material end caps and system at the end faces of the web roll, wrapping the web roll with the peripheral packaging, folding the folding edges and removal of the wrapped web roll from the wrapping area characterized. The cycle time of the separating device is essentially characterized by the separation of the end cover or from a unwound packaging material web area, the removal of the cut-out end cover from the removal position and advancing movement of the trimmed packaging material web with respect to the separating device for redeployment of a flat area in the form of a still untreated packaging material web area. The clocks of the two devices are temporally offset from one another in such a way set that they are shifted to each other at least by the time range, which includes the transport of the web roll in the wrapping area and the removal of the end cover from the removal area.

In a particularly advantageous further development, a separating device can be used for the simultaneous or temporally successive cutting out of the end cover of a material web roll, that is to say each inner end cover or outer end cover, or else the separating device can be assigned to several different packing systems at the same time.

If, in a further embodiment, a buffer is additionally introduced, the removal of the separated-out rollers or end caps preferably does not take place directly in the separation area, but the cut-out end covers are transported by means of a transport device into the removal area, from which they are then tapped. This solution is particularly advantageous if there are problems with regard to the arrangement of the separating device to arrange them directly in the area of the device for removal and positioning of end caps, as well as the corresponding changeover times for wrapping paper on the device for cutting out blanks in the form of end caps into account.

With regard to the removal, there is thus basically the possibility of a removal directly after the separation process or offset in time after transport from the removal area.

The separation of end caps from packing material webs can be carried out according to a preferred embodiment, simultaneously with the processing cycle for the respective web roll, that is, immediately initiated promptly with the transport of the web roll in the wrapping area or the beginning of the wrapping process. According to a further embodiment, however, the separation process can also be preceded by these processes, that is, foresighted, for a predefined number of material web rolls to be packed in the near future. Accordingly, the removal area is then to be arranged at a spatial distance from the separation area, the distance provided between separation area and removal area acting as a transport route. This length of this is a function of the required number and dimensioning of the end covers for a predefined number of web rolls to be packed and successively introduced into the reveal area in the near future.

To separate end caps from a packaging material web, it is unwound in a device, the separation being carried out from the unwound region, and then the rolled-out packaging material is rolled up again. The wound-up residual web can be fed to the papermaking process again after being comminuted. The winding and unwinding takes place at corresponding packaging web rolls or parcel paper. These can be arranged vertically or horizontally. Preferably, the deduction takes place in such a way that the unwound packaging material web region is exposed to the separating device in a horizontal guide region, so that the cut-out end cover or caps remain in this position and are thus predefined. This considerably facilitates the handling of the device for positioning the end caps, since the gripper always in the same position in the removal area has to be moved up and the front cover is positioned in the direction of gravity through the guide.

The separation method used is contacting or non-contact methods. In the former case, the separation takes place by the action of a cutting edge, which is rotatably or displaceably mounted and arranged such that a separation of a circular structure from the packaging material web is possible. Alternatively, separation methods are possible in which the arrangement of the separating device itself is arranged at a spatial distance to the guidance of the packaging material web and these enable a separation process via cutting media, for example water jets or lasers. Such separation devices are easily activated or deactivated by activation and deactivation.

Between separator and packing material web is a relative movement, which is preferably carried out only by the separator. The packaging material web is preferably at rest during the separation process. However, it is also conceivable superimposed movement of both, but this increases the tax burden.

According to a particularly advantageous embodiment, not only an end cover is removed from the packaging material web per separation process, but preferably a plurality, but at least two end covers. In this case, the separation of at least two end covers can take place at the same time, in two separation processes at the same time or else offset in time, either in one separation process. The former possibility offers the advantage of a particularly short cycle time within the separating device. This is preferably realized by the guidance of packing material webs one above the other, wherein the separating device is assigned to the upper or front packing material web, depending on the arrangement. The effort to control the separator can be significantly minimized, especially since the separation processes for the required end cover a web roll are summarized in terms of time and function. In the second case, the separation process via separately controllable, but coupled in terms of the function to be achieved separating devices. In contrast, the third case is characterized by autonomously controllable devices.

In case of temporal offset of the separation of the two end faces of a material web roll associated end caps from the packaging material web this is to be considered in the cycle time of the separator with a total of. Although this type is characterized by the simplification of the control of the separator, but only suitable for versions in which the cycle time for the separation of each of a web roll assignable end cover a Stirndeckelart - inner end cover or outer end cover - may not exceed the total packing time of the respective packaging cycle.

If, according to a particularly advantageous embodiment, the two end webs each assignable to a material web roll are produced in a separating process, means for supporting the singling of the two end covers arranged one above the other are preferably used in the parting region in order to avoid loss of cover or incorrect picking. In the simplest case, a negative pressure is applied to the lower or rear cover in the removal region, wherein the size of the negative pressure is selected such that it is not present between the overlying end caps.

The solution according to the invention can be used both for the packaging of web rolls in a continuous mode of operation as well as discontinuous mode of operation. It is irrelevant to the implementation of the inventive idea whether the web to be packaged, during the packaging process, is transported in the direction of its longitudinal axis or perpendicular thereto. The coordination and shifting of the tact beginnings of the individual processes, in particular the packaging of the material web roll and the actual separation process to provide the required end cover, takes place in dependence on the temporal implementation of the system of the end cover to the end faces of the web roll within the clock characterizing the package.

The device according to the invention for the packaging of material web rolls is characterized in that the removal region is arranged on a stationary separating device in the effective region of the device for removing and applying the end cover to the material web roll. As a result, the removal area for the end covers as a stationary area forms an area which is unchanged for all packaging operations, and thus considerably simplifies the design and functionality of the device for removal and positioning.

In an advantageous embodiment, the device has at least one device for receiving and positioning end covers, which is suitable for at least one, in particular combinable with other movement sequences and / or superimposable, pivoting movement to be positioned on a front side of a single web roll, front cover transfer. Such a device is particularly easy to retrofit to existing roll packaging devices, and is characterized by an excellent flexibility with regard to the roll dimensions to be packaged. Moreover, such an embodiment is easy to adapt to given space. Furthermore, such an embodiment also makes it possible to package the material web rolls transported in the direction of their longitudinal axis in a particularly simple manner.

The device for separating out rollers, in particular end covers, made of wrapping paper is characterized in that it is coupled to a removal area, wherein according to a particularly advantageous embodiment, the removal area coincides with the separation area. In this case, the removal takes place directly from the separation area, which is fixed in place due to the stationary arrangement of the device. In contrast, it is also conceivable, the removal area separated from the actual separation area to arrange, with removal area and separation area are coupled together via a transport device. The transport device can be used as a buffer for the provision of end caps in a forward-looking manner, in which case the required retrofitting can be taken into account with packing material webs without interrupting the actual packaging process.

In detail, at least one device for cutting out end covers of a corresponding functional unit, in particular a packaging area; for example, associated with the creation of the peripheral packaging in a packing plant. According to a particularly advantageous embodiment, the separation of the individual end covers at the same time or offset from each other can be carried out on one and the same separating device, which is then controlled by only one device for receiving and positioning of end caps to reduce the control engineering effort.

In a first embodiment, in which the two end covers for a web roll are provided on a separating device, depending on the time sequence of the separating operations, a single separating device with a plurality of packing material webs one above the other, two or more juxtaposed or successively arranged separating devices, preferably positively coupled with each other are controlled or used a separating device for the separation of both end covers, wherein the packaging material web is moved relative to the separating device after the first separation.

The solution according to the invention can be used both for the separation of round blanks in the form of inner and outer end covers. The concrete design depends on the specific time sequence during the wrapping process and the number of separating devices.

A device according to the invention is suitable for retrofitting or retrofitting a multiplicity of existing roll packaging devices. In this way, productivity and cost efficiency of already in-use roll packaging devices can be increased easily and inexpensively.

Figur 1a

verdeutlicht in schematisiert vereinfachter Darstellung anhand einer Ansicht von oben eine mögliche Ausführung einer erfindungsgemäßen Vorrichtung zur Verpackung von Materialbahnrollen;

Figur 1b

verdeutlicht anhand eines Ausschnittes aus einer Vorrichtung zum Verpacken von Materialbahnrollen in einer Perspektivansicht die Anordnung und Funktionsweise einer Einrichtung zum Heraustrennen von Stirndeckeln;

Figuren 2a bis 2c

verdeutlichen mögliche Ausführungen von Einrichtungen zum Heraustrennen von Stirndeckeln, insbesondere der Packmaterialbahnführung;

Figur 3

verdeutlicht anhand einer perspektivischen Ansicht eine Einrichtung zum Heraustrennen von Stirndeckeln mit zwei unabhängigen Trennbereichen;

Figur 4

verdeutlicht mögliche Anordnungen des Entnahmebereichs gegenüber dem Trennbereich;

Figuren 5a und 5b

verdeutlichen mögliche Anordnungen der Trenneinrichtungen;

Figur 6

verdeutlicht anhand eines Signalflussbildes die Ansteuerung der Einrichtung zum Heraustrennen von Stirndeckeln.

The solution according to the invention is explained below with reference to figures. It details the following:

FIG. 1a

illustrates in schematic simplified representation with reference to a view from above a possible embodiment of a device according to the invention for the packaging of web rolls;

FIG. 1b

illustrated by a section of a device for packaging material web rolls in a perspective view of the arrangement and operation of a device for cutting out front covers;

FIGS. 2a to 2c

illustrate possible embodiments of means for separating end caps, in particular the packing material web guide;

FIG. 3

illustrates a perspective view of a device for cutting out front covers with two independent separation areas;

FIG. 4

clarifies possible arrangements of the removal area in relation to the separation area;

FIGS. 5a and 5b

illustrate possible arrangements of the separation devices;

FIG. 6

illustrates on the basis of a signal flow diagram, the control of the device for cutting out front covers.

The FIG. 1 exemplifies an embodiment of a device 1 for packaging web rolls 2.1 to 2.n. The device 1 comprises at least one wrapping station 4, in which the individual material web rolls 2.1 to 2.n are wrapped with packaging material in the desired manner, and furthermore devices 5, preferably at least one such device for receiving and positioning end covers 6 at the opposing ones End faces 11.1, 11.2 of the individual web roll 2.1 to 2.n. To find examples in the FIG. 1 two such devices 5.1 and 5.2 use, in particular to a front cover unit from an outer end cover 6A and an inner end cover 6I per front page 11.1, 11.2 create. These devices 5.1, 5.2 are usually manipulator devices in the form of industrial robots that are operated automatically. The device 5.2 may also comprise a packing press. The device 1 further comprises a roller bearing device 3, which has at least one transport device for transporting the individual material web rolls 2.1 to 2.n to the wrapping station 4 and / or away from it again. The material web rolls 2.1 to 2.n to be wrapped are transported to the packing installation 30 from a plant 7 upstream of the packing installation 30, in particular in the form of a slitter-winder or a machine for producing material webs, in particular paper, board or tissue webs. The provision of the material web rolls 2.1 to 2.n to be packaged can alternatively also be effected from a material web roll magazine in which the material web rolls produced in the plant 7 are temporarily stored after production. While according to the embodiments of the prior art, the end caps to be positioned, in particular in an embodiment according to the FIG. 1 a on the device 5.1 to be attached to the web roll 2.2 in the wrapping station 4 inner end cover 6.1I. 6.2I are usually provided in Stimdeckeistapeln, according to the invention at least one device, here a device 8 for cutting out of round blanks, in particular end covers 6 in the form of inner end covers 6I from a packing material web 14 provided a Device 9 for separating out blanks, in particular end caps 6 in the form of outer end caps 6A from a packaging material web 15 is provided. The devices 8, 9 are also referred to here as automated separating devices, since by means of these a separation of the required end cover 6 from a packing material web 14, 15 takes place. From this, the required end covers 6I, 6A are promptly removed in the desired size for removal by the device 5, in particular 5.1 for receiving and positioning of inner end covers 6I and 5.2 for receiving and positioning of outer end covers 6A. The device 8 is provided here specifically for the provision of the inner end cover 6.1I and 6.2I. According to the illustrated embodiment, the two inner end covers 6.1I and 6.2I to be arranged on the end faces 11.1 and 11.2 of a material web roll 2.2 can be separated in a separation process by overlaying at least two packaging material webs 14.1, 14.2 from which the end covers 6.1I. 6.21 for both end faces 11.1, 11.2 are then separated out in one process step or sequentially separated from only one packaging material web 14. Accordingly, the removal of the respective inner end cover 6.1I and 6.2I in the embodiment according to FIG. 1a successively. It is also conceivable, however, not shown here, the arrangement of a further device which simultaneously with the device 5.1 brings the end cover 6.1I, 6.2I at the opposite end faces 11.1, 11.2 to concern. By analogy, these statements also apply to the outer end cover 6A, in particular 6.1A and 6.2A. Again, a device 9 for cutting out of blanks, in particular end caps 6.1A, 6.2A from a packaging material web 15 is provided. The control of the two devices 8 and 9 is preferably carried out via a shared control / regulation 10. The control / regulation 10 is designed and arranged to be suitable, both devices 8 and 9 for cutting out front covers 6A, 6I in the Requirement for provision of end covers 6A, 6I corresponding manner to control. The specific implementation and functionality will be discussed separately below.

With regard to the configuration of the individual devices 8 and 9 for cutting out front covers, there are a large number of possibilities. An embodiment of a device 8 is exemplary in the FIG. 1b With reference to a section of the packing installation 30, in particular the device 1 for packaging material web rolls 2.1 to 2.n, reproduced. The material web roll 2.n and the material web roll 2.n + 1 to be fed to the device 1 can be seen here by way of example, furthermore the device 5 for receiving and positioning end covers 6, here 6.1I, 6.2I at the material web roll 2.n, in particular the end faces 11.1 and 11.2. The transport direction of the material web rolls 2.n is denoted by P1. The device 8 for cutting off end covers 6I is here designed such that it comprises a device 12 for unwinding the packaging material web 14 and a device 13 for winding the trimmed residual packaging material web 14, the unwinding and winding taking place under tension of a flat region 31, in FIG which the required end cover 6.1I, 6.2I is worked out in a separation process from the packaging material 14. The sheet-like region 31 is realized by the packing material bobs 32, 33 of the devices 12 and 13 arranged parallel to one another, the unwinding being carried out by the packing material bob 32 of the device 12 and the winding of the trimmed packing material regions on the waste bunk 33 of the device 13. Each of the packing material bobs For this purpose, 32, 33 comprises a winding core on which the respective packaging material web 14 to be developed and / or trimmed and rewound packaging material web 14 is wound. The respective winding core of the individual reels 32, 33 is not shown here. This may be a hollow-cylindrical element which extends at least partially or completely through the packing material bobs 32, 33, wherein the winding core may be driven in a preferred embodiment, as shown here for example with reference to the waste bunker 33.

According to a first embodiment, at least the waste bins 33 provided for winding the trimmed packing material web 14 are driven, while the Packmaterialbobine 32 is only rotatably supported and driven by the train formed by the drive of the Abfallbobine 33 train on the packing material 14. It is also conceivable, however, a drive both. The unwound packaging material web 14 is stretched so flat by the spaced arrangement of the individual devices 12, 13 and a tensioning and guiding device 34 that it is a separator 29 can be exposed. The drive for unwinding or winding is then usually turned off or braked, so that the individual packing material areas are sequentially, in particular gradually associated with the separating device 29, wherein the required end cover 6, 6.2I example here on the separator 29 from the unwound and flat spanned packing material web portion 31 is separated out. This end cover 6 is then removed via the device 5. The removal takes place in a so-called removal area 16, which here corresponds to the separation area 17 at the device 8. For the desired provision of both inner end covers 6.1I and 6.2I, the separation takes place at the in FIG. 1b illustrated execution in succession. Visible here is the inner end cover 6.1I, which has already been taken from the device 5 from the removal area 16, which is formed here by way of example by a horizontal surface over which the packaging material web 14 is guided. It can also be seen the second inner end cover 6.2I, which is just cut out of the packing material 14. From the already separated inner end cover 6.1I can still recognize the present after the separation process hole 18 in the packaging material after the feed from the separation area 17 of the device 8. The residual web is wound up again at the waste bins 33. In the illustrated case, the guidance of the packaging material web 14 takes place by unwinding in the vertical direction, preferably with deflection over a horizontal region 19 of the tensioning and guiding device 34, and further by winding in a vertical region. The removal area 16 is here formed directly from the separation area 17, wherein the cut-out end cover 6I remains free in this area due to the horizontal orientation of changes in position and thus a fixed position of the removal region 16, in particular a defined removal position 20 allows the device. 5 in a simple manner can be repeatedly controlled and is achieved, the removal position 20 for all herauszutrennenden with the device 8 end cover 6, regardless of the dimensions and / or geometric design always due to the fixed orientation and stationary arrangement of the device 8 for cutting out End covers 6 remains constant. This can be accurately determined by coordinates in a coordinate system applied to the device 1. The alignment is carried out for all end caps 6 different dimensions on the symmetry or center axis M6 of the end cover. 6

The control is also here via the control / regulation 10, in particular control / regulation of the drive of Packmaterialbobine 32 and also the separator 29, in which case the separation of the two end covers 6.1I and 6.2I for the individual faces 11.1 and 11.2 of a web roll 2 in succession from the same packaging material by taking place between the individual separation processes feed movement of the packing material web 14 in the feed direction P2 from the Packmaterialbobine 32 to the Abfallbobine 33 takes place.

The FIG. 1b illustrates an example of an embodiment of a device 8 suitable for cutting out end covers 6 successively from the packaging material, in particular the packing material web 14 in two successive process steps, which are characterized by the same removal area 16 and the same separation area 17 for the individual end covers 6.1I, 6.1A , between the two separation processes to produce the two end covers 6.1I, 6.1A for a web roll 2.n the packing material web 14 is further transported, in particular by at least one transport path, which is greater than the maximum extent of a single end cap 6.1I, 6.1A Separating from the packing material web 14 in the transport direction of the packing material web 14 is. As a result, optimal utilization of the packing material web 14 is made possible. The excess remaining through the perforation 18 is then wound up. This one can again fed to the papermaking process. The controller 10 processes the input quantities XE, which describe the requirement of the end covers 6.1I, 6.2I for the specific material web roll 2.n to be wrapped. The parameters include information about the required nominal geometry and / or nominal dimensioning of the individual end cap 6.1I, 6.2I. Depending on this, at least the feed of the packaging material web 14 is controlled by the manipulated variables Y32, Y33 for controlling the unwinding and Abfallbobine 32, 33 are formed. Further, the separator 29 is driven by Y29. The input variables XE further preferably include for timely tuning of the individual processes when packaging a material web roll 2.n also the desired information for the time sequence of these operations, in particular feed the packing material web 14 and actuation / activation of the separating device 29th

Opposite in the FIG. 1b illustrated embodiment illustrates the FIG. 2a a particularly advantageous embodiment for the simultaneous production of a front cover pair of the same geometry and dimensioning, in particular the two end covers 6.1I, 6.2I or 6.1A, 6.2A for both end faces of a web roll 2. For this purpose, two packing material webs 14.1, 14.2 at least partially overlapping each other, in particular, one above the other, so that the areal areas 31.1, 31.2 overlap each other and the same separating device 29 in a process step from the two packing material webs 14.1 and 14.2 the required two end covers, here exemplified 6.1I, 6.2I are provided for both end faces 11.1, 11.2 can. This is realized in that preferably the individual packing material webs 14.1, 14.2 either as in the FIG. 2a represented at an angle to each other, preferably perpendicular to each other on the guide and clamping device 34 are guided. In a further development, however, it is also conceivable, as in FIG. 2b shown, the packaging material webs 14.1, 14.2 directly in the same direction over each other to perform parallel, in which case the respective Packmaterialbobinen 32.1, 32.2 or 33.1, 33.2 to each other, in particular in the vertical direction would be arranged offset to each other.

In the FIG. 2a the individual bobbins for the packing material web 14.1 with 32.1 and for the waste bins with 33.1 and for the packing material web 14.2 32.2 and 33.2 are called. By analogy, this name also applies to those in the FIG. 2b one above the other in parallel and in the same direction guided packing material webs 14.1 and 14.2.

The FIGS. 2a and 2b are further characterized by identical separation areas 16.1, 16.2 and removal areas 17.1, 17.2. So that when removing a single end cover 6.1I and 6.2I no adhesion of these together with accidental entrainment under possible loss of generated in the device 8 bottom cover 6.2I is preferably a device 22 for separating the overlapping arrangement of the packaging material webs 14.1, 14.2 produced superimposed end cover 6.1I, 6.2I provided. This causes by applying a negative pressure on the at least lower cover 6.2I that this remains unchanged when removing 6.1I in its position in the removal area.

Clarify the FIGS. 2a and 2b Particularly advantageous embodiments with a horizontal removal area 16.1, 16.2 and the constant removal position 20.1, 20.2 also in the horizontal direction in a plane, illustrates the Figure 2c an alternative embodiment in which the planar region 31 of the packaging web 14 is vertically aligned and guided in the horizontal direction. In this case, however, would be to implement a fixed removal position 20, in particular to avoid tipping out of the vertical position, either a means for adhering the cut-out end cover 6 is required, or below the separation area 17 a catcher which describes the removal area 16. The collecting device is here designated by way of example with 21 and shown.

The in the FIGS. 2a to 2c Illustrated embodiments function in analogy to that in the FIG. 1b described, wherein the lid production according to FIG. 2a takes place in a single process step free from a feed of the packing material web 14.1 or 14.2. In the execution according to Figure 2c the training can also take place one after another. The tact time according to the FIGS. 2a and 2b determined in accordance with the need for a renewed separation process supply movement for the packaging material web 14 in the feed direction of the individual packing material webs 14.1 and 14.2. The removal from the removal region 16 is preferably carried out with a device 5. However, it is conceivable here, the provision of two devices 5.1 and 5.2, successively the corresponding end cover 6.1I, in particular 6.11, 6.21 and 6.1A, in particular 6.1A, 6.2A from the Remove removal area 16.

The FIG. 3 illustrates an advantageous further development, in which the attachment of end caps 6.1I and 6.2I at the opposite end faces 11.1 and 11.2 of a web roll 2 takes place simultaneously. In this case, the individual end covers, here the inner end covers 6.1I and 6.2I are produced simultaneously. The device 8 is designed in such a way that from the packing material web 14 in spaced-apart areas preferably simultaneously via a common separator 29 or with each other forcibly coupled controllable, not shown here individual separation devices 29, the separation of the respective end cover 6.1I, 6.2I. The device 8 here forms two removal areas 16.1 and 16.2 respectively for the two end covers 6.1I and 6.2I, which are preferably separated out at the same time and are removed by the analog control of the two devices, here 5.1 and 5.2, from the respective removal area 16.1 and 16.2. The removal areas 16.1 and 16.2 are identical to the separation areas 17.1, 17.2, the removal positions 20.2, 20.2 being identical for the two facilities 5.1 and 5.2. The effective ranges 24.1 and 24.2 of the individual devices 5.1 and 5.2 in this case include the removal area 16.1, 16.2 and are shown by a broken line.

The arrangement of the removal area 16 or the removal areas 16.1, 16.2 is carried out in a particularly advantageous embodiment corresponding to those in the FIGS. 1 to 3 illustrated embodiments and again in a schematic simplified representation in FIG. 4a In this case, the removal region 16 is preferably identical to the separation region 17. The pivoting movement of the device 5 is controlled in such a way that the entry into the removal region 16, which is identical to the separation region 17, takes place chronologically successively, ie only after completed separation process so as not to affect the device 5.

In contrast, illustrates the FIG. 4b an embodiment with spatial separation of the separation region 17 from the removal region 16. For this purpose, a transport device 23 is preferably provided between the removal region 16 and the separation region 17. This allows the provision of end caps without large intermediate storage, wherein the removal of a front cover 6.In spatially offset for a web roll 2.n to the separator in the area 16, while in the separator already front cover 6.In + 1 for the web roll 2.n +1 or larger. As a result, the end covers can be cut out of the device 8 already in a forward-looking manner for the next following material web rolls to be packed 2.n + 1, that is, upstream of the actual packaging. However, the function of the separating device 29 and the transport device 23 is coordinated with one another such that no intermediate storage takes place in the removal region 16, but removal takes place immediately upon arrival without any delay. In this case, the mode of operation of the device 5 for receiving and positioning end covers, the transport device 23 and the separating device 29 is preferably coordinated with one another such that continuous end covers 6 are provided.

At all in the FIGS. 1 to 4 The embodiments shown, the removal region 16 within the effective range 24 of the device. 5 or the active areas 24.1 of the device 5.1, 24.2 of the device 5.2 for receiving and positioning of end covers 6 are arranged. In this case, the removal region 16 is fixed in each case, that is, unchangeable. This applies regardless of the size and geometry of the required produced end cover 6. The manipulator unit in the form of the device 5 is to rest against the web rolls 2 only with respect to a movement for removal of a first end cover, for example 6.1I and eventual removal of a second end cover 6.2 I and positioning at the respective end face 11.1, 11.2 interpret. Since the removal position 20 is always constant, the effort for the control of the device 5 can be significantly minimized. It can also be minimized here in a special way, the reduction of the cycle time for application, which is characterized by the recording and the guidance and positioning of the end cover 6, in particular 6.1I, 6.2I, 6.1A, 6.2A.

The device 29 can be designed in various ways. In this case, non-contact and touching systems are distinguished, in moving systems with fixed cutting a movement into the operating position, for example, by pivoting and the activation is usually generated by a relative movement between the separator and the packing material 14, while in the systems free of solid Cutting the activation and deactivation can be done by simple connection or disconnection. The FIG. 5a illustrates an example of an embodiment of a separating device 29 in the form of a cutting device 25, which is preferably relative to the surface of the packing material web 14, in particular the area spanned area 31 movable. Rotating cutting edges or displaceable cutting edges can be used here. Sliding cutting can thus perform cutting, shearing or punching operations. In contrast, illustrates the FIG. 5b an embodiment, wherein the separating device 29 is formed either as a laser beam device 26 or as a water jet cutting device 27.

The respective separating device 29 may be arranged at a distance from the packing material web 14 and be stored stationary in this stationary position. Activation is in the simplest case by switching on and off.

The FIG. 6 illustrates a method according to the invention for the frontal packaging of web rolls 2, which is characterized in that depending on the requirements XE-2.n the web roll 2.n for the required end cover 6.1I, 6.2I and 6.1A, 6.2A the material web roll 2.n to be packaged is controlled by the separating device 29 in that the actuating signal Y29 is output to the separating device 29, which corresponds to the detachment of the corresponding end cap at the predefined time. Based on the overall process of attaching a front cover 6, this includes on the one hand the determination in a method step A, whether a web roll 2 in the packaging area, in particular in the wrapping station 4 is or is introduced into this. The required occupancy BE of an area, either the wrapping station 4 or an area before it, is checked. If this is not equal to zero, ie present, the variables characterizing this material web roll and, therefrom, the required sizes for the description of the required end cover 6 in method step B are determined for this web roll 2.n. This can be done by means of a device for detecting the material web roll to be packaged 2.n at least indirectly descriptive variables or, for example, by default, in particular a higher-level process control. These quantities are denoted by XE, which act as input variables of a control / regulation 10 and describe the dimensioning, geometry and the required time of provision of the respective end cap. Depending on these input variables XE, the manipulated variables Y29, Y12, Y13 for controlling the separating device 29 and the device 34 for clamping and guiding the packing material web 14, in particular the devices 12, 13 for unwinding and winding up the packing material web 14 are actuated. Before, however, it is checked in C whether a flat region of the packing material web 14 is ready, in particular whether or not an old head cover is located in the removal area 16. If the removal area 16 is still occupied, ie BE16 is not equal to zero, an error can be deduced. If this is released, it is checked whether there is now an uncut area in the removal area 16. This is done in the simplest case by optical determination of holes 18. If there is no perforation 18, the separator 29 can be controlled directly, ie specification of at least one manipulated variable Y29 for the separator 29 according to E and control of the device 5 for removal and positioning of the / the end cover in step F. If there is a perforation 18, there is a feed movement of the packing material web in the direction of the take-up machine 13 by a minimum displacement s.

At the same time as the separation process or at a later time, in method step F, the devices 5 for removing and positioning the end covers are activated or controlled in such a way that removal takes place immediately after completion of the separation process. The adjusting movement of the device 5 can thus be initiated at the same time as the separating process E for realizing a movement in the direction of the removal region 16. Once this has been achieved, it is again checked in A whether web rolls are to be packed, i. the packing area is occupied.

In contrast, it is also conceivable to specify a concrete cycle time for the separation process and the packaging process in the device, although a temporal offset is provided between the two processes, so that the process of separating out is always initiated after the emptying of the removal area.

LIST OF REFERENCE NUMBERS

1

Device for packaging material web rolls

2, 2.1 - 2.n

Web roll

3

Role storage facility

4

wrapping station

5

Device for receiving and positioning end covers

5.1, 5.2

Device for receiving and positioning end covers

6

front cover

6A, 6.1A, 6.2A

Outer end cover

6.I, 6.1I, 6.2I

Inside front cover

7

investment

8th

Device for separating out blanks, in particular end caps

9

Device for separating out blanks, in particular end caps

10

Control / regulation

11.1

front

11.2

front

12

Device for unwinding a packing material web

13

Device for winding the trimmed packing material web

14, 14.1, 14.2

Wrap web

15

Wrap web

16, 16.1, 16.2

removal area

17, 17.1, 17.2

separating region

18,18.1

perforation

19

horizontal area

20, 20.1, 20.2

removal position

21

catcher

22

separating device

23

transport means

24, 24.1, 24.2

effective range

25

cutter

26

laser-beam device

27

Water jet cutting device

29

separator

30

Pack system

31, 31.1, 31.2

areal area

32, 32.1, 32.2

Packmaterialbobine

33, 33.1, 33.2

Abfallbobine

34

guide means

s

minimum distance

A - F

steps

M6, M6.1, M6.2

center line

Y29

Manipulated variable for controlling the separator

Y5

Manipulated variable for controlling the device for removing and positioning end covers

Y32

Manipulated variable for driving the brown paper bob

Y33

Control value for controlling the waste bins

XE

input variables

ts

cycle time

P1

transport direction

P2

feed direction

BE1

Assignment of the device with a web roll

BE16

Occupancy of the withdrawal area

Claims (15)

1. Method for packaging the ends of rolls, in particular material web rolls (2, 2.1-2.n, 2.n+1), guided on a supporting device (3) and having a longitudinal axis and two ends (11.1, 11.2), by affixing end covers (6, 6A, 61, 6.1I, 6.21, 6.1A, 6.2A, 6.n, 6.n+1),
   characterized in that
   depending on a requirement for end covers (6, 6A, 61, 6.11, 6,21, 6.1A, 6.2A) for a material web roll (2, 2.1-2.n, 2.n+1) to be packaged, the end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A) are cut out in at least one separating region (17, 17.1, 17.2) of a device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) from a packaging material web (14, 15, 14.1, 14.2) stretched out flat (31) and, over a defined removal region (16, 16.1, 16.2), are removed by means of at least one device (5, 5.1, 5.2) for picking up and positioning the end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1), and are positioned on the end (11.1, 11.2) of the material web roll (2, 2.1-2.n, 2.n+1) to be packaged.
2. Method according to Claim 1,
   characterized in that
   between removal and positioning, the end covers undergo at least one change in the alignment of the surface coming into contact with the roll and/or the surface forming its cut edge.
3. Method according to one of the preceding claims,
   characterized in that
   end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) required for a multiplicity of material web rolls (2, 2.1-2.n, 2.n+1) to be packaged are removed from a removal region (16, 16.1, 16.2) of which the position is fixed within an apparatus (1) for packaging the ends of material web rolls (2, 2.1-2.n, 2.n+1), which region, for all the end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) required from this removal region (16, 16.1, 16.2), is characterized by the same removal position (20, 20.1, 20.2) for the at least one device (5, 5.1, 5.2) for picking up and positioning the end covers (6, 6A, 61, 6.1I, 6,2I, 6.1A, 6.2A, 6.n, 6.n+1).
4. Method according to one of the preceding claims,
   characterized in that
   the separating operation is placed chronologically before the packaging method of the material web roll (2, 2.1-2.n, 2.n+1) to be packaged, and the individual end cover (6.n, 6.n+1) cut out for this material web roll (2, 2.1-2.n, 2.n+1) is transported from the separating region (17, 17.1, 17.2) of the device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) into a removal region (16) that is arranged physically separately therefrom, the transport time being chosen such that the end cover (6.n, 6.n+1) reaches the removal region (16) when removal is required.
5. Method according to one of the preceding claims,
   characterized in that
   the individual end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) of at least one type of end cover - inner end cover and/or outer end cover - for a material web roll (2, 2.1-2.n, 2.n+1) are produced simultaneously or one after the other by means of a device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1).
6. Method according to one of the preceding claims,
   characterized in that
   in a cutting-out device (8, 9), a plurality of packaging material webs (14.1, 14.2) are guided at an angle or parallel to one another, beside one another or above one another.
7. Method according to one of the preceding claims,
   characterized in that
   the device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) is controlled/regulated on the basis of the requirement for end covers (6, 6A, 6I, 6.1I, 6,2I, 6.1A, 6.2A, 6.n, 6.n+1).
8. Method according to one of the preceding claims,
   characterized in that
   the roll to be packaged is transported in its longitudinal direction, at least in some sections, during the packaging process.
9. Apparatus (1) for packaging material web rolls (2, 2.1-2.n, 2.n+1), comprising a device (5, 5.1, 5.2) characterized by a corking region (24, 24.1, 24.2) for picking up and positioning end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) on the ends (11.1, 11.2) of an individual material web roll (2, 2.1-2.n, 2.n+1)
   characterized in that
   a device (8, 9) is provided for cutting out at least one round in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) from a packaging material web (14, 15, 14.1, 14.2) stretched out flat, comprising at least one separating device (29) describing a separating region (17, 17.1, 17.2), at least with regard to its working region, and a removal region (16, 16.1, 16.2) for the end covers (6, 6A, 61, 6.1I, 6,2I, 6.1A, 6.2A, 6.n, 6.n+1) cut out, the removal region (16, 16.1, 16.2) being arranged in the working region (24, 24.1, 24.2) of the device (5, 5.1, 5.2) for removing and positioning the end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1).
10. Apparatus (1) according to Claim 9,
    characterized in that
    the device (5) for picking up and positioning the end covers (6, 6A, 61, 6.11, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) is suitable to transmit at least one pivoting movement, in particular one that can be combined and/or superimposed on other movement sequences, to the end cover (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) to be positioned on one end (11.1, 11.2) of an individual material web roll (2, 2.1-2.n, 2.n+1).
11. Apparatus (1) according to Claim 9 or 10,
    characterized in that
    the device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1) from a packaging material web (14, 15, 14.1, 14.2) includes at least one separating device (29) and means (34) for stretching out and guiding a packaging material web (14, 15, 14.1, 14.2).
12. Apparatus (1) according to one of Claims 9 to 11,
    characterized in that
    means (34) are provided for stretching out and guiding at least one further packaging material web (14, 15, 14.1, 14.2), which means are arranged and constructed in such a way as to be suitable to guide at least two packaging material webs (14.1, 14.2) above one another, at least in the separating region (17, 17.1, 17.2).
13. Apparatus (1) according to one of Claims 9 to 12,
    characterized in that
    the individual separating device (29) comprises at least one movable cutting element, in particular a blade or rotatable knife, and/or in that the individual separating device (29) comprises at least one laser cutting device (26) or a water jet cutting device (27).
14. Apparatus (1) according to one of Claims 9 to 13,
    characterized in that
    this comprises an open-loop/closed-loop control system (10) having at least one input, which can be coupled to a device for predefining/acquiring variables (XE) at least indirectly describing the required end cover (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1), and having at least one output, which can be coupled to at least one of the said devices:

    - a device (8, 9) for cutting out rounds in the form of end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1)

    - actuating devices of the means (34) for stretching out and guiding the at least one packaging material web (14, 15, 14.1, 14.2) and the at least one separating device (29)

    - a device (5, 5.1, 5.2) for removing and positioning the end covers (6, 6A, 61, 6.1I, 6,21, 6.1A, 6.2A, 6.n, 6.n+1).
15. Apparatus (1) according to one of Claims 9 to 15,
    characterized in that
    the individual removal region (16, 16.1, 16.2) is arranged physically at a distance from the separating region (17, 17.1, 17.2).

Images