DE102005000076A1 - Roller device and method for the simultaneous winding of several juxtaposed partial material webs - Google Patents

Abstract

The invention relates to a reel winder, in particular for a reel-cutting machine, for simultaneously winding a plurality of juxtaposed partial material webs, in particular paper or board webs, on winding cores (1, 2) to winding reels each having a winding position for each reel, wherein a plurality of winding positions in the axial direction are arranged one behind the other, and with a winding bed forming a support roller assembly below the winding positions. DOLLAR A The roll winding device according to the invention is characterized in that the winding tubes (1, 2) at their joints (3, 4) by sleeves (5) are interconnected, preferably before the insertion of the winding tubes (1, 2) in the roll winding device automatically can be introduced and which after the ejection of the winding tubes (1, 2) are preferably automatically removed from the roll winding device. DOLLAR A Furthermore, the invention relates to a method for simultaneously winding a plurality of juxtaposed partial material webs, in particular paper or board webs, on winding tubes (1, 2) to winding rollers in a roll winding device, in particular for a slitter winder.

Description

Log roll winders, In particular, carrier roll winding machines are used to wind up Material webs, in particular of paper or board webs, to wound rolls used. The carrier roll winding machines have a first and a second carrier roll, which lie next to each other and a winding bed for receiving cores form on which the webs (partial webs) wound side by side become. As a rule, the material webs are used as partial webs from a single material web wound on a full tambour produced by the material web wound on the full tambour while their unwinding slitting devices passes through to produce the partial webs. The generated partial webs are then next to each other on winding tubes wound.

Thereby, that in the winding bed next to each other several mostly made of cardboard cores Push on Bump from Sleeve guide heads, the each drive and non-drive side in the adjacent cores drive in, pressed together, then with the Material webs are wound, the cardboard tubes lengthen due the layer pressure of wound on the cores material web winding and under the additional Load a pressure roller, which presses from above on the winding rolls.

The elongation the winding tubes is for example, 1 per thousand of their length. Since all next to each other lying cores through the clamping heads are in their position "fixed", so can not expand freely, arise big axial forces and vibrations in the cores. These forces and different winding diameter, among other things due to Profile variations of the material web in the cross machine direction, lead to Offset of the sleeve centers to each other, whereby the smooth running during winding is significantly disturbed. It can cause a "swinging" of the bobbins and / or to vibrations, resulting in a reduction of the winding speed force and thus lead to a loss of productivity. Very disadvantageous It turns out that the adjacent winding rolls are not centric are fixed. They therefore do not rotate about a common axis, but offset in the middle, which can lead to non-centric sitting cores. The corresponding winding rolls then run in the processing of printing machines out of round, which is unacceptable.

To create a smoother running, is from the European patent specification EP 0 792 245 B1 a winding method for adjacent winding rollers known in which the coefficient of friction of the cores to be reduced among themselves. For this purpose, the ends of the cores, while or before they are arranged at the winding positions, treated with a medium which reduces the friction, or pieces of a low coefficient of friction material are placed at the ends of the cores. Or, the axial thrust force between the cores is reduced by introducing a pressurized medium from side coil locators into the cores and expelling each between the cores.

Furthermore, in the German Offenlegungsschrift DE 199 60 000 A1 a double carrier roll winding machine described, in which the sleeves of the roll ejection are penetrated by a winding rod. The winding rod is in this case attached to a winding rod insertion device. This embodiment has the disadvantage that it is both functionally complicated and structurally auslagernd.

Task of invention

Of the The invention is therefore based on the object, a slitter-winder of the type mentioned in such a way that disturbances in Winding the bobbins and during the further processing of the bobbins be avoided. Furthermore, a corresponding method is given become.

These Task is in a slitter according to the invention thereby solved, that the cores at their joints are interconnected by sleeves, which prior to insertion the winding tubes preferably automatically introduced into the roll winding devices are and which after the ejection of the cores preferably automatically removable from the roll winding device are.

The inventive task is completely solved in this way.

advantageous Further developments emerge from the dependent claims, the Description and the drawings.

Due to the inventive design of the slitter cutting machine vibrations due to a fixed, radial joining of the winding tubes are avoided in particular. Also, the rolls produced usually have higher qualities, since the faces are not damaged in the role ejection, because the entire sentence can not move against each other. Thus, there is no stamping of the end faces by adjacent rolls. Furthermore, a conditional on the cutting separation supernatant of the cores is completely avoided.

The Sleeve preferably has a cylindrical, preferably hollow cylindrical Body on and furthermore it also has a preferably centrally arranged Collar on, which has a collar width in the area of one between two Part material webs were cut and the maximum one Collar diameter less than or equal to the outer diameter of the outer tube has. This makes the sleeve ideal for a light weight the two inner contours of the touching cores to adjust. Moreover, she is not over the two outside diameters the touching one cores and the abovementioned supernatant of the cores is positively preventable.

In order to the sleeve in the axial separation of the two contacting rolls not is pulled out undefined and even falls out, at least a half the sleeve preferably provided at its periphery with a plurality of beads, so that they clamp differently strong in the two cores. The beads in this case have a preferred bead height in the range of 0.1 to 2 mm, preferably from 0.5 to 1 mm. The beads are inserted into the sleeve Elevations of any cross-sectional contour.

Also can the beads rectilinear and / or curved Have bead contours, preferably in or at least substantially longitudinal the sleeve are aligned. The beads can be interrupted sporadically be. Depending on application and separation conditions are by the measures ideal conditions for one optimized and versatile use of the sleeve created.

The Sleeve preferably has at least three, preferably at least six beads arranged on their circumference on. This is an ideal and preferably full-scale Clamping of two adjacent cores by an inserted sleeve given.

In order to the sleeve in the axial separation of the two contacting rolls not is pulled out undefined and even falls out, is in second preferred embodiment provided that one half the sleeve has a different diameter than the other half of the Has sleeve so that they vary in strength in the two Winding sleeves stuck. The difference in diameter is preferably in the range here from 0.1 to 0.5 mm.

To the Purposes of facilitated introduction of a sleeve in at least a winding tube Is it provided with a chamfer at both ends, which have a chamfer angle in the range of 30 to 60 °.

The inventive task is procedurally characterized solved, that the cores at their joints be connected by sleeves, which before insertion the winding tubes be introduced into the Rollenwickelvorrichtungen and which after from the reel winding device of the cores preferably automatically be removed. It can the sleeves before inserting the cores into the reel winders be introduced manually or automatically. After the ejection of the cores the role winding device can the sleeves manually or in a separate station or in a Packaging system to be removed by a robot.

1

mandrel

2

mandrel

3

joint

4

joint

5

sleeve

6

body

7

collar

8th

half

9

scope

10

bead

11

Wulstkontur

12

The End

13

The End

14

chamfer

15

chamfer

B ₇

collar width

D ₁

Reel sleeve outer diameter

D ₂

Reel sleeve outer diameter

D ₇

Collar diameter

H ₁₀

bead height

L

longitudinal direction (Double arrow)

alpha bevel angle

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

1 a perspective view of an inserted between two cores sleeve; and

2 a perspective view of in 1 illustrated sleeve.

The 1 shows a perspective view in the form of a wire model of two adjacent and unwound cores 1 . 2 ,

Such cores 1 . 2 are used in a known roll winding device, in particular for a slitter-winder, for the simultaneous winding of several juxtaposed part-material webs, in particular paper or board webs, to wound rolls. In each case, a winding position is provided for each winding roll, wherein a plurality of winding positions are arranged in the axial direction one behind the other. Furthermore, a winding roller forming a winding bed arrangement is provided below the winding positions.

The two winding tubes 1 . 2 are at their joints 3 . 4 through a sleeve 5 connected to each other before inserting the cores 1 . 2 in the role winding device is preferably introduced automatically and the after ejection of the cores 1 . 2 preferably is automatically removable from the reel winding device.

This axial separation of the bobbins you have to imagine as follows: The finished roll throw is launched. He rolls - thanks to the Muffs - well as a closed composite ("cardboard box") on a conveyor belt, this in Direction of the goods seen - behind installed on the winder and at right angles to the center line the cutting machine is arranged. This leading to roll packaging plant transport route is divided into at least two sections. The litter will now transported so that the downstream first finished roll on the second transport section comes to rest, while the rest of the rollers still remains on the first section. In this situation, that will Conveyor belt of the first section stopped while the Follower conveyor continues to run and takes the first role. Here are narrow rolls in addition to hold or support. The sleeve that connected the first and second rollers remains thanks to the sleeve bulge stuck in the first roll. Is then the second role on analog Seldom way, so she gets along with her the packing machine facing sleeve in the packing system. Here, the "annoying sleeve", as already stated, either be removed manually or by a robot - automatic Roll packers feature usually over anyway Robot for that Applying the end covers; These robots could be used to make the muffs from the pods pull it out.

The sleeve 5 can before inserting the cores 1 . 2 be introduced manually into the reel winder and it can after the ejection of the cores 1 . 2 be removed from the roll winder manually or in a separate station or in a packaging system by a robot. Such a robotic packaging system is known for example from the European patent EP 0 610 662 B1 known.

The 2 shows a perspective view of the in 1 in the wire model concealed sleeve shown 5 ,

The sleeve 5 has both a cylindrical, preferably hollow cylindrical body 6 as a preferably centrally arranged collar 7 on. The collar 7 has a collar width B ₇ in the region of a cut separation between two partial material webs. Furthermore, the maximum collar diameter D _{7 is} smaller than or equal to the two outer diameter of the outer tube D ₁ , D ₂ (see. 1 ).

The left half 8th the sleeve 5 is at its periphery 9 such with several beads 10 provided so that they vary in strength in the two cores 1 . 2 stuck. The beads 10 have a respective bead height H10 in the range of 0.1 to 2 mm, preferably from 0.5 to 1 mm. Of course, the sleeve can 5 in further execution also on both sides beads 10 have, which can be designed differently.

The in the 2 recognizable ridges 10 have straight bead contours 11 on, preferably in or at least substantially in the longitudinal direction L (double arrow) of the sleeve 5 are aligned. The bead contours 11 However, they can also assume other contour shapes, for example curved, alone or in combination with one another.

The sleeve 5 has six at its circumference 9 arranged and only partially visible beads 10 on. From a practical point of view, the sleeve should 5 at least three such beads 10 exhibit.

Furthermore, the sleeve 5 at their two-sided ends 12 . 13 each with a chamfer 14 . 15 provided having a chamfer angle alpha in the range of 30 to 60 °.

In addition, in unillustrated embodiment, one half of the sleeve 5 a different diameter than the other half of the sleeve 5 have, so that they vary in strength in the two cores 1 . 2 stuck. This will be the sleeve 5 during the axial separation of the two contacting winding rollers 1 . 2 not undefined pulled out.

The illustrated cores 1 . 2 including sleeve 5 are also particularly suitable for carrying out the method according to the invention.

In summary It should be noted that by the invention, a slitter of the aforementioned type is developed such that interference in the Winding the bobbins and during the further processing of the bobbins be avoided.

Claims (9)

Roll winding device, in particular for a slitter-winder, for simultaneously winding a plurality of juxtaposed partial material webs, in particular paper or board webs, on winding cores (US Pat. 1 . 2 ) to winding rolls, each having a winding position for each winding roll, wherein a plurality of winding positions are arranged one behind the other in the axial direction, and with a winding bed forming a support roller assembly below the winding positions, characterized in that the winding tubes ( 1 . 2 ) at their joints ( 3 . 4 ) by sleeves ( 5 ), which before insertion of the cores ( 1 . 2 ) are preferably automatically introduced into the roll winding device and which after the ejection of the cores ( 1 . 2 ) are preferably automatically removed from the roll winding device. Roll winding device according to claim 1, characterized in that the sleeve ( 5 ) a cylindrical, preferably hollow cylindrical basic body ( 6 ) and that the sleeve ( 5 ) a preferably centrally arranged collar ( 7 ), which has a collar width (B ₇ ) in the region of a cut separation between two partial material webs and a maximum collar diameter (D ₇ ) smaller than or equal to the outer diameter of the outer tube (D ₁ , D ₂ ). Roll winding device according to claim 1 or 2, characterized in that at least one half ( 8th ) the sleeve ( 5 ) at its periphery ( 9 ) with several beads ( 10 ) is provided so that they vary in strength in the two cores ( 1 . 2 ) and that the beads ( 10 ) have a bead height (H ₁₀ ) in the range of 0.1 to 2 mm, preferably 0.5 to 1 mm. Roll winding device according to claim 3, characterized in that the beads ( 10 ) straight and / or curved bead contours ( 11 ), preferably in or at least substantially in the longitudinal direction (L) of the sleeve ( 5 ) are aligned. Roll winding device according to claim 3 or 4, characterized in that the sleeve ( 5 ) at least three, preferably at least six at its periphery ( 9 ) arranged beads ( 10 ) having. Roll winding device according to claim 1 or 2, characterized in that one half of the sleeve ( 5 ) a different diameter than the other half of the sleeve ( 5 ), so that they vary in strength in the two cores ( 1 . 2 ) is stuck. 7. roll winding device according to one of the preceding claims, characterized in that the sleeve ( 5 ) at their two-sided ends ( 12 . 13 ) each with a chamfer ( 14 . 15 ) having a chamfer angle (alpha) in the range of 30 to 60 °. Method for simultaneously winding a plurality of juxtaposed partial material webs, in particular paper or board webs, on cores ( 1 . 2 ) to winding rolls in a roll winding device, in particular for a slitter winder, each having a winding position for each winding roll, wherein a plurality of winding positions are arranged in the axial direction one behind the other, and with a winding bed forming support roll arrangement below the winding positions, characterized in that the winding cores ( 1 . 2 ) at their joints ( 3 . 4 ) by sleeves ( 5 ), which before insertion of the cores ( 1 . 2 ) are introduced into the roll winding device and which after the ejection of the cores ( 1 . 2 ) are preferably automatically removed from the reel winder. Method according to claim 8, characterized in that the sleeves ( 5 ) before inserting the cores ( 1 . 2 ) are introduced manually or automatically into the reel winder. Method according to claim 8 or 9, characterized in that the sleeves ( 5 ) after ejection of the cores ( 1 . 2 ) are removed from the roll winder manually or in a separate station or in a packaging line by a robot.