EP0873940A2 - Roll cutting device with a packaging means - Google Patents

Abstract

The reeling section (6) has at least one drive mechanism for winding at least one part-roll (7). The reeling section contains a wrapping appliance (13) wrapping at least the periphery of the part-roll, and using the drive mechanism (8) for wrapping the part-roll. The wrapping appliance has at least one dispenser (14) for the web of wrapping material and which travels parallel with the reel-axis. The wrapping dispenser incorporates an adhesive-applicator (18) and a guide-piece (16) conveying the web (17) of wrapping material with the sticky side of the part-roller. The guide piece incorporates a track on the periphery of the part-roll ending in front of where the part-roll touches the roller (9).

Description

The invention relates to a roll cutting device for a material web with a material web feed section, a slitting section and a winding section, the at least one drive device for Has winding of at least one partial roll.

Such a roll cutting device is under the The name DuoRoller II from Voith Sulzer Paper Machines GmbH, Heidenheim, distributed (company publication "DuoRoller II - The winding concept for graphic papers").

The invention is intended to be based on the example of a paper web are explained. But it is the same Can also be used with other material webs are handled in a similar manner.

Paper webs are commonly used in a paper machine made with a width that is larger than a width that is used in printing plants or other finishing plants can be handled. So can for example paper webs at the end of the paper machine have a width of the order of 10 m, while print shops typically have smaller widths, for example, 0.8 m to 3.8 m. For this Basically, the paper web is divided into several longitudinal strips divided what the slitting section is used for, and wound up in a winding section. The paper web can either be handled from a roll or directly from another processing station come, for example a calender.

The manufacture of the partial rolls is usually one the last steps before the paper roll is "finished", so handed over to processing companies becomes. After the partial rolls have been produced usually the packaging of the partial rolls. The Packaging serves, among other things, to protect the roll from damage to protect.

The packaging is often done in that a packaging line around the circumference of the sub-roll, the packaging web applied in one or more layers can be. Here is the packaging line often axially over the end faces of the rollers. On The packaging is then used to help these end faces closed by so-called end covers, on which the The supernatant can be folded in. There are packaging machines for this known, which supplied the partial roles will. These packaging machines or lines need but again a significant amount of space, which the Cost of building and maintaining a paper mill elevated. It also requires the packaging machine an appropriate operator.

DE-PS 251 396 describes a device for packaging of fabric rolls that have a first changing bed with two driven by a common drive belt Has support rollers in which a roll of fabric is wound becomes. The back roller in the direction of travel forms together with another support roller Changing bed that has its own drive. In this The finished wound fabric rolls can be used as a further changing bed be packed.

DE-OS 20 02 725 describes a method and a device for cross cutting, wrapping and banding long sections of paper or film material. Here the material web is wound in a winding station, in which several rollers are arranged so that the winding roll to be wound in the circumferential direction surrounded different positions. This changing station is via a transport route that consists of two in parallel band groups led to each other, with a Packing station connected. The changing station is here arranged so that the winding roll when Keeps so that it does not stick with the tapes Conveyor belt groups come into contact. The conveyor belt groups are controlled in terms of speed that the finished winding roll with decreasing speed is transported to the packing station but can no longer wind up here.

The invention is based, the cost to keep low.

This task is done with a slitter rewinder of the type mentioned in that Winding section at least the circumference of the partial roll packing packaging device is arranged, the the drive device for packaging the partial roll uses.

With this configuration, there are several advantages at once. On the one hand, you save a considerable amount Installation space because the packaging facility at least partially integrated into the winding section is. At least the peripheral packaging can are already generated in the winding section. This has the further advantage that the roll already from the winding station is at least partially protected. Most Transport devices attack the circumference of the roll. If there is already extensive packaging there, then at most the peripheral packaging will be charged, but not the paper web. The end faces can be such an arrangement packed quite later will. On the other hand, you now use an existing one Drive that was previously used only for wiggling the sub-role was responsible for another Purpose. The drive rotates the partial role at Manufacture of the peripheral packaging. So there is none additional drive required, which in turn has a favorable effect on costs. Also processing time saved. That in the whole production process necessary times usually expose themselves the actual treatment times and the times together, which are necessary to the appropriate roles or partial rolls in the individual processing stations introduce or discharge. If you now the transition between the winding station and the packaging station saves, the corresponding Save transition times, which makes overall result in shorter treatment times for the paper rolls. You can also see the staff at the packaging machine save on.

The packaging device preferably has at least a packaging web dispenser in parallel is movable to the winding axis. With the packaging web dispenser can then be added one after the other Pack the partial rolls. This is especially true of Advantage when processing partial rolls with changing widths will. The partial roles can then on different axial positions can be arranged without that one has to take into account that there too Packaging lane must be present. The packaging line is rather provided where the sub-role has been generated.

It is particularly preferred that the packaging web dispenser to a position outside the sub-roll is movable. The partial roles are usually sideways, i.e. across the winding axis, from the winding station pushed out. If you look at the packaging web dispenser for example so far laterally in the axial direction can move that it is outside the web width stands, then there is the possibility of side ejection receive. The packaging web dispenser is annoying not further.

The packaging web dispenser is preferably opposite the winding axis is pivotable and is also during manufacture the circumferential packaging parallel to the winding axis movable. With this configuration, a peripheral packaging generated, which is like a helix around the individual sub-roles. This approach is currently in connection with a winder of considerable advantage. In such a Roll cutters are usually web rolls generated with changing widths. Would you now for everyone Have a suitable packaging lane ready there would be considerable difficulties in Storage of the packaging lanes. But if you uses a packaging dispenser that has a creates helical packaging, then you are no longer relying on the fact that a large number of Packaging lanes with the correct width for each Has available. You can have a single packaging line use with a fixed width. This width can be relatively narrow. It is often sufficient if the Width is in the range of 30 to 80 cm. The necessary The axial length of the peripheral packaging then results automatically when producing the peripheral packaging. If an axially longer part roll is packed are flat correspondingly more revolutions of the partial roller necessary, to create the peripheral packaging.

The winding section advantageously has two winding position groups on, with the winding axes of the winding positions in a winding position group essentially are the same, the winding axes of both winding position groups are offset against each other and the partial roles in each of the two winding position groups are arranged to each other, for each winding position group a packaging web dispenser is provided. If you have a parent role or one upstream Processing device coming material web divided into several sub-roles, it is advantageous if you do not immediately see the individual sub-roles coiled next to each other, but separately. For this purpose it is known to have two (or more) winding positions to be provided whose winding axes do not match. If you now for each of these winding position groups its own packaging web dispenser then the packaging process can be accelerated. The packing times can be practically on be reduced by half.

The partial rolls in both winding position groups are advantageous by the same central roller on the circumference driven. So all sub-roles have the same Peripheral speed, in addition, with the withdrawal speed on the parent role. This results in good winding conditions in a simple manner, without for each winding position group a separate drive is necessary.

The packaging web dispenser preferably has an adhesive mediator and a guide device on which the packaging web with its tackified Side of the sub-roll feeds. You can count on this Way to ensure that the packaging web on the circumference adheres to the part roll to be packed. If the part role then continues to rotate, then it pulls automatically their packaging web and wraps it on yourself at the same time. Here you can continue Apply glue. In many cases, however, it is enough even if the glue reappears at the end of the packaging process is applied. To make you sticky you can choose other options. So you can for example, use a packaging line that already coated with a water-soluble adhesive is, which then only needs to be moistened. Also Packaging webs coated with a hot melt adhesive are possible if the adhesive mediation device the corresponding supply of heat is guaranteed.

The guide device advantageously has one Guide path on the circumference of the sub-role in front of a Installation of the partial roll on a roller ends. The packaging line can then be sent to the Extent of the sub-role to be performed on a Position where, when the reel turns, a short time later got into a gap between roller and roller. There the packaging line is attached to the circumference of the partial roll pressed. This way you can be right achieve good adhesive results so that the packaging web is firmly glued to the circumference of the partial roll, at least at the beginning of the packaging process.

It is particularly preferred that the guide path has a guide surface in which the distance of their End of the roller is changeable. At the beginning of the packaging process it is often necessary that one the packaging web as close as possible to the circumference the sub-role brings. During the packaging process could interfere with the guide surface, however, in particular when the packaging web dispenser is being manufactured Move the peripheral packaging parallel to the axis becomes. If you pull back the end of the guide surface, thus the distance of the guide surface from the Partial roll or the roller enlarged, then the packaging process through the guide surface no longer with special needs.

The winding station is advantageous in the area of a machine frame arranged, and the packaging device is hung on the machine frame. A machine frame is at many slitter winding stations available anyway. You can now take advantage of it Position packaging device.

It is particularly preferred that the vertical position the packaging device is changeable. Man can the packaging device for example lift when the packaged partial rolls are ejected should be. One can raise or lower it the packaging facility, in particular the packaging web dispenser, also a cheap supply of Packaging web to the partial rolls ensure what for example with regard to the tension of the packaging web may be desirable.

The partial roll is preferably located during winding and packaging on two rollers. Here, a roller as Drive roller may be formed while the other only serves as a support or support roller. With such a The packaging line can be arranged with little effort between the roll to be packed and Insert one of the two rollers so that it immediately following the wrapping process, the peripheral packaging can be made.

In an alternative embodiment, the partial role rest on a roller, with a roller core holding device is arranged above the roller. The Roll core holding device is at the beginning of the winding process often pushed towards the roller, so that the roller can form a peripheral drive. With increasing roll diameter increases weight the partial roll so that the roll core holding device only has to assume holding functions. Even with one the circumferential packaging can be configured in this way easy to manufacture by having the packaging web into the gap between the roller and roller.

In a preferred embodiment is in front of the winding device one spreader is arranged, and several Partial rollers are spaced apart in the Arranged winding device, one between the Partially retractable knife device provided is. In this configuration, the material web spread after cutting, i.e. the individual tracks are guided so that they are in the winding device have a predetermined distance from each other. Of the The distance is usually a few centimeters. Especially then when you have a sideways movable and angularly adjustable packaging web dispenser used, you can then after finishing the Partial rolls a helical circumferential package the whole of the partial rolls. This is possible, because all sub-roles are usually the same Have diameter. After making the peripheral packaging is then using the knife device a separation between the individual, packaged partial rolls made so that the partial roles again individually become manageable.

In this case, the knife device is preferably parallel movable to the winding axis. This also allows different Handle the widths of the partial rolls. The Knife device is moved where there is a separation necessary is. Here you can separate the individual Carry out partial roles one after the other. The Knife setup only needs one point of circumference can act. A circumferential cut is then made by rotating the roller.

Fig. 1

eine erste Ausführungsform einer Rollenschneidevorrichtung in schematischer Seitenansicht,

Fig. 2

die Vorrichtung nach Fig. 1 in schematischer Draufsicht,

Fig. 3

eine zweite Ausführungsform einer Rollenschneidevorrichtung in schematischer Seitenansicht,

Fig. 4

die Vorrichtung nach Fig. 3 in schematischer Draufsicht,

Fig. 5

eine dritte Ausführungsform einer Rollenschneidevorrichtung in schematischer Seitenansicht,

Fig. 6

die Vorrichtung nach Fig. 5 in schematischer Draufsicht und

Fig. 7

eine Ansicht entsprechend Fig. 5 mit Maschinenrahmen.

The invention is described below on the basis of preferred exemplary embodiments in conjunction with the drawing. Show here:

Fig. 1

a first embodiment of a roll cutting device in a schematic side view,

Fig. 2

1 in a schematic top view,

Fig. 3

a second embodiment of a roll cutting device in a schematic side view,

Fig. 4

3 in a schematic top view,

Fig. 5

a third embodiment of a roll cutting device in a schematic side view,

Fig. 6

5 in a schematic plan view and

Fig. 7

5 with machine frame.

A roll cutting device 1 has a feed section 2, in which a material web 3 of the device is fed. The material web 3 can do this be handled by a jumbo or parent roll. But you can also directly from a calender or other post-processing facility. This is generally known and is therefore not explained further.

The material web 3 then runs through a slitting section 4, in which a cutting device 5 is arranged is. The cutting device 5 divides the material web 3 in several lying side by side in the transverse direction Material web sections, the width of this Material web sections, also called partial webs to the needs of the customers of the material web is adjusted. If the original web of material 3, for example, a width in the range from 6 to 10 m has, then the partial webs have a width in the Of the order of 0.8 to 3.8 m. The cutting devices 5 are adjustable in the transverse direction, so that different patterns can be created, the original material web 3 in several sub-webs with different and changing widths can be divided.

The individual partial webs then run into a winding section 6, where they are wound into partial rolls 7. As can be seen from Fig. 2, the partial roles have quite different widths.

A central roller 8 is provided in the winding section, which rotates in the direction of an arrow 9. The central roller 8 is here from the material web 3 or whose partial webs are looped over a larger angular range. The partial rollers 7 are interposed the material web 3 on the central roller 8. Your Roll cores 10 are mounted on levers 11, which on a stationary base 12, for example, in a not be attached to the machine frame shown can be pivoted.

If the central roller 8 now rotates, then the Partial rollers 7 driven on their circumference and wind the partial webs of the material web 3.

From Fig. 2 it can be seen that the partial web rolls 7th are divided into two winding positions. In the presentation 2 are two web rolls left of the central roller 8 and a partial web roll 7 to the right of the central roller 8 arranged. To put it simply, is to the left of the central roller 8 Winding position group in the present embodiment is occupied with two partial rollers 7, while the right winding position group only occupied with one roll is. The roles are mutually spaced, so that they are wrapped without interference can be. The winding axes in a wikicle position group are on a line. Of the Roll construction takes place in the same way for all partial rolls 7.

In the winding section there is furthermore for each wikicle position group a packaging device 13 with a packaging web dispenser 14. Each packaging web dispenser 14 carries a packaging web roll 15. Die Width of the packaging web roll 15 is significantly smaller than the width of the sub-rolls 7. The width of the Packaging web roll 15 moves in the range of 0.3 up to 0.8 m.

Each packaging web dispenser 14 has a guide surface 16 on which the from the packaging web roll 15 deducted packaging web 17 to the extent of a Partial roller 7 can be advanced. Still is a glue application device 18 is provided which the Part roll 7 facing side of the packaging web 17 can apply an adhesive. The leadership area 16 can be advanced in the direction of the partial roller 7 a gap between the guide surface 16 and the surface to keep the partial roller 7 as small as possible. she is also retractable so that the packaging process, which is described below, not is disturbed.

As can be seen from Fig. 2, the packaging web dispenser 14 adjustable in angle, i.e. the output Packing lane 17 will when it is on the partial roll 7 comes to the system and sticks there when turning the partial roller 7 is not pulled exactly in the circumferential direction, but it wraps around in a spiral the web roll 7 around.

During the rotation of the partial roller 7, the Packaging web dispenser 14 in the direction of the double arrow 19. Of course he only moves into one when wrapping Direction. The direction, i.e. up or down in Fig. 2, determines which angle the Packaging web dispenser 14 taken for part roll 7 Has.

When the partial roller 7 rotates, how is formed said a helical circumferential packaging, with adjacent strips of packaging web 17 can overlap to a multi-layer peripheral packaging to manufacture. You can do this with a single packaging web width, any length of partial rolls 7 pack, i.e. you don't need to A separate packaging line for every possible part roll width to keep in stock. Beyond that very flexible in the arrangement of the partial roll. One is no longer have to rely on partial roles only there generate where the appropriate packaging line is available stands. One can rather the partial roles arbitrarily divide and then drives the packaging web dispenser in Direction of the double arrow on the part roll to be packed 7.

The individual sub-rollers 7 can thus in each wikenspositionsgruppe one after the other with an extensive package be provided. But it is also possible to have multiple packaging web dispensers 14 to be provided per winding position group to speed up the packaging process.

The packaging web dispenser 14 is on the right axially movable into a position 20, which is shown in FIG is shown in dashed lines. Located in this position he's definitely outside the breadth of the Material web 3 so that the partial rolls 7 are ejected laterally can be without the packaging web donor 14 to be hindered. If the partial rolls 7 the roll cutting device Leave 1, then at least they are on its scope already with packaging provided and thus against mechanical damage largely protected. Because packaging is immediate following the completion of the partial rolls, can considerable time savings can be achieved here. Since the Packaging device integrated in the winding device saves installation space.

3 and 4 show another embodiment of a Roll cutting device with the same parts are provided with the same reference numerals.

In contrast to the device according to FIGS. 1 and 2 all partial rolls 7 are now wound side by side. This is done in a manner not shown Spreading rollers are provided, which generate a web guide, in which the partial rollers 7 a small distance A from each other exhibit.

The partial rollers 7 are now on two rollers 21, 22 stored, of which the roller 21 in the direction of the arrow 9 is driven. The packaging web 17 is in the area between the other roller 22 and the sub-roller 7 introduced. There it adheres to the peripheral surface the sub-roll 7, if previously with the help of Glue application device 18 adhesive has been applied is.

In this configuration, you can now the side by side Partial rolls 17 in a single packaging process with the help of the packaging web dispenser 14 pack, which over the entire width, i.e. about the sum of the widths of the partial rolls 7 with gaps is proceeded. This creates a coherent Packaging made with the help of a knife 23, the Move parallel to the winding axis and perpendicular to it can be again in individual sub-roll sections can be divided.

5 and 6 show a third embodiment of a Roll cutting device. The same parts are the same Provide reference numerals.

In this embodiment, two are again different Winding position groups provided on both sides of a central roller 8 are arranged. The Sub-rollers 7 are also each on one Carrier roller 22 on.

7 shows the arrangement according to FIGS. 5 and 6 schematically, to represent where the packaging web dispenser are arranged. For this purpose, there is a machine frame 24 provided the four pillars 25, on both ends one longitudinal cross member 27 and each in the transverse direction has a crossbar 26. The crossbeams 26 can only be seen in section.

On the crossbar 26 shown on the right in FIG. 7 is a carriage 27 displaceable in the transverse direction which the packaging web dispenser 14 depends on. The connection between the packaging web dispenser 14 and the carriage 28 takes place via a piston-cylinder unit 29, with the help of the packaging web dispenser 14 so far can be raised that the partial rollers 7 on the right side of the central roller 8 ejected to the right can be without using the packaging web dispenser to collide. For this purpose, the guide surface 16 must withdrawn far that an upward movement the partial roll 7 is possible.

Claims (15)

Roll cutting device for a material web with a material web feed section, a slitting section and a winding section that at least one drive device for winding has at least one partial roll, characterized in that that in the winding section (6) at least one packing the circumference of the partial roll (7) Packaging device (13) is arranged, which Drive device (8, 21) for packing the partial roll (7) uses. Device according to claim 1, characterized in that the packaging device (13) at least a packaging web dispenser (14) which is movable parallel to the winding axis. Device according to claim 2, characterized in that the packaging web dispenser (14) in a Position (20) can be moved outside the partial rollers is. Device according to claim 2 or 3, characterized in that that the packaging web dispenser (14) opposite the winding axis swiveling and also when Manufacture of the peripheral packaging parallel to the winding axis is movable. Device according to one of claims 1 to 4, characterized characterized, the winding section 6 two Has winding position groups, the winding axes the winding positions in a winding position group are essentially the same Winding axes of both winding position groups against each other are offset and the partial rollers (7) in the two winding position groups each on gap are arranged to each other, for each winding position group a packaging web dispenser (14) is provided. Device according to claim 5, characterized in that the partial rolls (7) in both winding position groups through the same central roller (8) on Scope driven. Device according to one of claims 1 to 6, characterized characterized that the packaging web dispenser (14) an adhesive switching device (18) and a guide device (16) which the Packing web (17) with its tacky one Side of the sub-roll (7) feeds. Device according to claim 7, characterized in that the guide device (16) has a guide path having on the circumference of the partial roller (7) before the partial roll is in contact with a roller (9, 22) ends. Device according to claim 8, characterized in that has a guide surface (16) in which the distance of its end from the roller (9, 22) can be changed is. Device according to one of claims 1 to 9, characterized characterized in that the winding station (6) in Area of a machine frame (24) arranged and the packaging device (13) on the machine frame (24) is suspended. Apparatus according to claim 10, characterized in that the vertical positions of the packaging device is changeable. Device according to one of claims 1 to 11, characterized characterized in that the partial roller (7) at Wrapping and packaging on two rollers (9, 22) rests. Device according to one of claims 1 to 11, characterized characterized in that the partial roller (7) a roller (9) rests, a roller core holding device (11) arranged above the roller (9) is. Device according to one of claims 1 to 13, characterized characterized in that in front of the winding device (6) one spreader is arranged and several Partial rollers (7) at a distance from each other in the Winding device (6) are arranged, one knife device retractable between the partial rollers (23) is provided. Device according to claim 14, characterized in that the knife device (23) parallel to Winding axis is movable.

Images