DE102006052547A1 - Method for packing a material web roll - Google Patents

Abstract

The invention relates to a method for packaging a web roll (1), in which the peripheral surface (4) of the web (2, 3) and a roll width (B) having web roll (1) with a packaging web (5) made of kraft paper (6). is wound with its longitudinal edge (7) under a pointed winding to the circumferential direction (R) of the web roll (1) to the web roll (1), which then at least partial overlap (Ü) of two adjacent wraps (8.1 to 8.10, 8. (n-1), 8.n) helically around the roll of web material (1) is guided around and to their covered longitudinal edge (7) both a preferably vertically arranged start edge (9) and a preferably vertically arranged end edge (10) , The method according to the invention is characterized in that the first wrapping (8.1) is applied to the material web roll (1) in such a way that it intersects the preferably vertically arranged starting edge (9) in a first intersection (S1), that the last wrapping (8. n) is applied to the material web roll (1) in such a way that it intersects the preferably vertically arranged end edge (10) of the previous wrapping (8. (n-1)) in a second intersection (S.2) and that the two intersections ( S.1, S.2) at least in the respective plane (E.2, E.3) of the corresponding end face (2, 3), preferably with a distance away from the material web roll (1) distance (A.2, A.3 ) in the range of 0 to ...

Description

The The invention relates to a method for packaging a web roll, in which the peripheral surface the two end faces and a roll width having web roll is wrapped with a packaging web of wrapping paper, which with their longitudinal edge under a pointed winding to the circumferential direction of the web roll is applied to the web roll, which then at least partially overlap two adjacent wraps is helically guided around the web roll and those to their covered longitudinal edge both a preferably vertically arranged starting edge as also has a preferably vertically arranged end edge.

The to be packaged web rolls have a considerable amount nowadays Size. you Diameter is usually in the range of 500 to 2,500 mm. The roll width is usually 500 up to 4,000 mm or above out.

such Web rolls arise, for example, in the paper or Textile production. To the web rolls of their production plant, for example the paper mill, to the place of consumption, for example a printing to be able to transport have to they are wrapped in a packaging sheet to protect them. The Packaging web offers on the one hand a mechanical protection against damage. On the other hand, it should also the influence of environmental variables, such as Humidity, keep small.

Since the web rolls occur in production with very different widths, is in known devices, such as in the European patent application EP 0 499 954 A1 set out, a large number of packaging web rolls provided with different widths. Here, the web rolls are divided into different classes depending on their width. For each width class, a correspondingly wide packaging web roll is required in each case. This must be so wide that, when wrapping or wrapping the material web roll, it still protrudes axially over the material web roll by a certain length, as a rule 100 to 250 mm. The supernatant must be large enough to be able to fold it on the front side of the web roll. On the other hand, the supernatant must not be too large. Otherwise, the folding can not be done with the desired quality. This is important, for example, when the finished packaged material web rolls are to be stacked axially one above the other (so-called chimney stacking).

For many different widths of the web rolls must therefore many packaging web rolls are kept ready. The big number Of course, packaging web rolls means a significant logistical Effort. To have to accordingly many different roll widths are stored. Continue to have in the packaging web donor arrangement the necessary storage bins for the packaging rolls be kept ready. This costs space, increases maintenance and increases the mechanical engineering effort.

From the German patent DE 195 35 746 C2 a method for packaging a web roll is known, in which the peripheral surface of the two end faces and a roll width web roll is wrapped with a packaging web of kraft paper, which is applied with its longitudinal edge under a pointed roll to the circumferential direction of the web roll to the web roll and then at at least partially covering two adjacent wraps is helically guided around the web roll. In addition to the helical wrapping of the web roll with the packaging web, a second packaging web of wrapping paper is aligned parallel to the circumferential direction and wound to form an axial projection in the region of an axial end of the web roll around the web roll, wherein uncovered in the region of the axial ends when winding the first packaging web Sections arise which are substantially triangular.

This Method allowed in a helically wrapped web roll similar to the front side packaging to produce as in a conventional Packaging consisting of a packaging web with the web roll adapted width has been formed. However, it is increasing in the realization of this process both the control technology as well as mechanical engineering effort. In addition, the packaging includes the web roll several independent packaging parts whose Collection, handling and disposal is also more complex.

Furthermore, the Voith Paper TWISTER ^® packaging machines pack a web roll according to the type mentioned above. When applying the wrapping paper strip of the packaging web for packaging a new web roll arises depending on the Umwicklungswinkels a supernatant of Kraft paper strip on the front side of the web roll, which can lead to problems later folding the packing paper. Furthermore, a certain area remains free of wrapping paper, so that, depending on the sensitivity of the web roll to be packaged edge protection in the form of a separate packaging is required.

It The object of the invention is a method of the aforementioned Further develop such a way that the web roll faster, easier and cheaper can be packed.

These The object is achieved in a method of the type mentioned in the present invention that the first wrap applied to the web roll is that they are the preferably vertically arranged starting edge at a first intersection that cuts the last wrap is applied to the web roll such that they are preferably vertically arranged end edge the previous wrapping in one second intersection intersects, and that the two intersections at least in the respective level of the corresponding face, preferably with a remote from the material web roll distance in the range of 0 to 300 mm, preferably 100 to 150 mm, for corresponding end face of the web roll are, so that one Umwicklung supernatant the packaging web over the corresponding end of the web roll out in the area from 0 to 300 mm, preferably from 0 to 150 mm, is formed.

The inventive task is completely solved in this way.

The when using the method according to the invention wrapped web roll is over their entire cylindrical surface uniformly packed. It is thus no area free of wrapping paper, so that regardless of the sensitivity of the web roll to be packaged no edge protection in the form of a separate packaging is required. Furthermore, will by packing the web roll with only one on both sides of the Overhanging ends Packaging web made of wrapping paper exclusively a packaging part, its collection, handling and disposal compared to the current situation is designed simpler.

in the With regard to a further frontal packaging of the material web roll it is advantageous if the packaging web preferably after application all wraps is cut in such a way that at least one-sided, preferably on both sides a preferably uniform and adjustable cutting projection over the End of the web roll out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed. This cutting overhang allows the creation of a sufficient interface with other possible packaging parts, such as inner and outer end cover.

Farther is in a preferred embodiment provided that the packaging web preferably before application the first wrap is cut such that at least the beginning a preferably more uniform and adjustable cutting projection over the End of the web roll out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed. This is unnecessary initial side cutting of the packaging web after its application, Thus, it provides the advantage of a faster and easier Packaging of the web roll.

moreover can also be provided that the packaging web preferably before applying the first wrapping is cut so that the end a preferably more uniform and adjustable cutting projection over the End of the web roll out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed. Thus, a bilateral one Cutting the packaging web after their application is no longer necessary.

in the Looking for the best possible Packaging of the web roll is further provided that on the two end faces of the roll of web material in each case an inner end cover is applied by means of at least one delivery device that the each resulting cut-over projection by means of a preferably common folding on the on the associated End face of the web roll applied inner end cover is folded and that on the respective inner end cover with the help Packing presses each attached to an outer end cover and connected to the folded cut-over projection, in particular is glued.

Further Features and advantages of the invention will become apparent from the following Description of preferred embodiments with reference to the drawing.

It the sole figure shows a schematic partial plan view of a Roll wrapping at a stage where the initial ones Wraps already helical were led around the web roll around.

When packaging a two end faces 2 . 3 and a roll width B having web roll 1 becomes its peripheral surface 4 with a packaging line 5 from wrapping paper 6 wrapped. In the figure, only the first end face 2 shown, the end face, not shown 3 located at the other and not shown end of the web roll 1 ,

Made of wrapping paper 6 existing packaging web 5 is with its longitudinal edge 7 under a pointed winding α to the circumferential direction R (arrow) of the web roll 1 attached to the same. Subsequently, the packaging web 5 then at too At least partial overlap Ü each two adjacent wrappings 8.1 to 8.10 helically around the web roll 1 led around. Since the acute angle α over the width B of the web roll 1 remains the same, remains at least partially overlap Ü each two adjacent wrappings 8.1 to 8.19 equal.

The packaging railway 5 points to its covered longitudinal edge 7 both a preferably vertically arranged beginning edge 9 as well as a preferably vertically arranged end edge 10 on. The beginning edge 9 is shown in the figure, the end edge 10 however, not because of the partial top view.

The first wrap 8.1 is so on the web roll 1 applied so that they are preferably vertically arranged beginning edge 9 cuts in a first intersection S.1. On the other hand, the last wrap will be 8.n. such on the web roll 1 applied so that they are preferably vertically arranged end edge 10 the previous wrapping 8. (n-1) in a second intersection S.2 cuts. Both the end edge 10 as well as the previous wrapping 8. (n-1) and the intersection S.2 are not explicitly shown in the figure.

The two points of intersection S.1, S.2 are at least in the respective plane E.2, E.3 of the corresponding end face 2 . 3 , preferably with one of the web roll 1 remote distance A.2, A.3 in the range of 0 to 300 mm, preferably from 100 to 150 mm, to the corresponding end face 2 . 3 the web roll 1 , so that in each case a Umwicklungsüberstand Üu.2, Üu.3 the packaging web 5 over the corresponding front side 2 . 3 the web roll 1 out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed. As already stated, the specified properties or parameters of the second level E.3 are not explicitly shown.

The packaging railway 5 is preferably after application of all wraps 8.1 to 8.n. cut such that at least one side, preferably on both sides, a preferably uniform and adjustable cutting projection Üs.2, Üs.3 on the corresponding end face 2 . 3 the web roll 1 out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed.

Alternatively, the packaging web 5 also preferably before application of the first wrapping 8.1 be cut such that at least the beginning of a preferably uniform and adjustable cutting projection Üs.2 on the front page 2 the web roll 1 out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed. In addition, the packaging web can 5 Also be cut such that the end a preferably uniform and adjustable cutting projection Üs.3 on the front page 3 the web roll 1 out in the range of 0 to 300 mm, preferably from 0 to 150 mm, is formed.

After the complete wrapping of the web roll 1 and their described circumcision is on the two end faces 2 . 3 the web roll 1 in a known manner in each case an inner end cover 11 by means of at least one delivery device 12 applied. The delivery device 12 may be, for example, a handling robot.

Subsequently, the respectively formed cutting projection Üs.2, Üs.3 by means of a preferably common folding device 13 on the on the associated front page 2 . 3 the web roll 1 applied inner end cover 11 folded.

And finally, on the respective inner end cap 11 with the help of packing presses 14 each one not explicitly shown outer end cover 15 placed and connected to the folded cut-over projection, in particular glued.

The devices of the other method steps mentioned for packaging a web roll 1 , especially the delivery facility 12 , the folding device 13 and the packing presses 14 are well known to the skilled person and therefore not explicitly shown in the figure.

In summary It should be noted that a method of the initially mentioned type is improved such that the web roll packed faster, easier and cheaper can be.

1

Web roll

2

front

3

front

4

peripheral surface

5

packaging web

6

wrapping paper

7

longitudinal edge

8.1 until 8.10

wrapping

8. (n-1), 8.n.

wrapping

9

leading edge

10

end edge

11

Inside front cover

12

Supply means

13

folding

14

Pack Press

15

Outer end cover

A.2

distance

A.3

distance

B

roll width

E.2

level

E.3

level

R

circumferentially (Arrow)

S.1

first intersection

S.2

second intersection

Ü

coverage

Üs.2

Section supernatant

Üs.3

Section supernatant

Üu.2

Umwicklungsüberstand

Üu.3

Umwicklungsüberstand

α

angle

Claims (7)

Method for packing a material web roll ( 1 ), in which the peripheral surface ( 4 ) of the two end faces ( 2 . 3 ) and a roll width (B) having web roll ( 1 ) with a packaging web ( 5 ) from kraft paper ( 6 ), which with its longitudinal edge ( 7 ) under a pointed winding to the circumferential direction (R) of the web roll ( 1 ) to the web roll ( 1 ), which is then at least partially overlapped (Ü) of two adjacent wraps ( 8.1 to 8.10 . 8. (n-1) . 8.n. ) helically around the web roll ( 1 ) is guided around and to their covered longitudinal edge ( 7 ) both a preferably vertically arranged beginning edge ( 9 ) as well as a preferably vertically arranged end edge ( 10 ), characterized in that the first wrapping ( 8.1 ) on the web roll ( 1 ) is applied, that they the preferably vertically arranged starting edge ( 9 ) in a first intersection (S.1) intersects that the last wrap ( 8.n. ) on the web roll ( 1 ) is applied, that they are preferably vertically arranged end edge ( 10 ) of the previous wrapping ( 8. (n-1) ) in a second intersection (S.2) intersects, and that the two intersection points (S.1, S.2) at least in the respective plane (E.2, E.3) of the corresponding end face ( 2 . 3 ), preferably with one of the web roll ( 1 ) facing away from the distance (A.2, A.3) in the range of 0 to 300 mm, preferably from 100 to 150 mm, to the corresponding end face ( 2 . 3 ) of the web roll ( 1 ), so that in each case a Umlunglungsüberstand (Üu.2, Üu.3) of the packaging web ( 5 ) over the corresponding end face ( 2 . 3 ) of the web roll ( 1 ) in the range of 0 to 300 mm, preferably from 0 to 150 mm. Method according to claim 1, characterized in that the packaging web ( 5 ) preferably after application of all wraps ( 8.1 to 8.10 . 8. (n-1) . 8.n. ) is cut such that at least on one side, preferably on both sides, a preferably uniform and adjustable cutting projection (Üs.2, Üs.3) on the front side ( 2 . 3 ) of the web roll ( 1 ) in the range of 0 to 300 mm, preferably from 0 to 150 mm. Method according to claim 1, characterized in that the packaging web ( 5 ) preferably before application of the first wrapping ( 8.1 ) is cut such that at least at the beginning of a preferably uniform and adjustable cutting projection (Üs.2, Üs.3) on the front side ( 2 . 3 ) of the web roll ( 2 ) in the range of 0 to 300 mm, preferably from 0 to 150 mm. Method according to claim 1 or 3, characterized in that the packaging web ( 5 ) preferably before application of the first wrapping ( 8.1 ) is cut such that at the end a preferably uniform and adjustable cutting projection (Üs.2, Üs.3) on the front side ( 2 . 3 ) of the web roll ( 2 ) in the range of 0 to 300 mm, preferably from 0 to 150 mm. Method according to one of the preceding claims, characterized in that on the two end faces ( 2 . 3 ) of the web roll ( 2 ) in each case an inner end cover ( 11 ) by means of at least one delivery device ( 12 ) is applied. Method according to one of claims 2 to 5, characterized in that the respective resulting section projection (Üs.2 Üs.3) by means of a preferably common folding device ( 13 ) on the corresponding end face ( 2 . 3 ) of the web roll ( 1 ) applied inner end cover ( 11 ) is folded. Method according to one of claims 2 to 6, characterized in that on the respective inner end cover ( 11 ) by means of packing presses ( 14 ) in each case an outer end cover ( 15 ) and connected to the folded cut-over projection (Üs.2, Üs.3), in particular glued.