EP1757546B1 - Winding machine with bearing rollers - Google Patents

Abstract

The machine (1) winds a web (2) onto at least one winding core (3) to produce at least one wound roll (4) lying in a winding bed (7) formed by two carrier rollers (5, 6). A loading roller (8) presses the roll against the bed. The load roller is connected by mounting rack (10) to a baseplate (11) carrying the winding machine.

Description

The invention relates to a carrier roll winding machine for winding a material web, in particular a paper or board web, on at least one winding tube to at least one winding roll, which is located in a winding bed formed by two support rollers, with the at least one winding roller in the winding bed pressing load roller.

Material webs must be wound up into shipping or finishing rolls before they can be shipped. As reel cores usually winding cores are used, which are preferably made of cardboard. The finished rolls are produced in that so-called mother or spool rolls, which are produced at the exit of a paper machine or after the calendering, unwound, cut in the longitudinal direction and then wound on each winding cores. These cores lie in a winding bed formed by two support rollers of a double carrier roll winding machine.

In a double carrier roll winding machine, as for example from the DE 200 13 319 U1 or the EP 0 792 245 B1 is known, according to the number of individual webs produced from the original material web by longitudinal cuts several cores next to each other in the winding bed, even if subsequently for reasons of simplicity always only a single winding tube is addressed in conjunction with a wound on her web. However, it is also possible to wind only a single winding roll in a double carrier roll winding machine.

From the DE 199 46 400 B4 a carrier roll winding machine is known in the the winding roll is pressed into the winding bed by a loading roller arranged vertically above the winding roll. The load roller exerts a minimum load of 0.5 kN / m on the reel during the entire winding process. The loading roller serves to achieve a desired winding hardness during winding. The winding roll should namely be wound harder inside than in the area of the circumference. In order to achieve sufficient winding hardness even at the beginning of the winding process, despite the initially low net weight of the wound only with a few layers of the web winding tube, the loading roller presses the winding roller with a predetermined force into the winding bed. As a result, this can wrap relatively hard, that is, the winding hardness is high enough in the region of the roll core or the winding tube. As the weight increases with increasing roll diameter, the load is returned by the load roll.

EP 1 375 401 A1 shows a carrier roll winding machine for winding a material web onto a winding roll equipped with a winding core which lies in a winding bed formed by two support rolls. A first loading roller mounted on two movable carriages presses the winding roller into the winding bed at least during part of the wrapping cycle. Two additional loading rollers are attached to the two carriages. These are arranged axially parallel and mutually to the first load roller and pivotable, so that they can be additionally pressed against the winding roller during the winding process. This embodiment is obviously complex and therefore expensive and has a comparatively unfavorable power flow.

Known loading rollers are connected to the machine frame; The power flow goes through the machine frame into the foundation; The machine frame must therefore have a high rigidity. It should be added that such a construction is associated with considerable costs.

The invention is therefore based on the object, an improved carrier roll winding machine to create, which allows the production of wound rolls with improved winding qualities.

This object is achieved in a carrier roll winding machine of the type mentioned by the features of the characterizing part of claim 1.

Characterized in that the frame is mounted on a base plate, all winding forces as well as those of the support rollers, the loading roller and the forces exerted by the connection of the loading roller cylinder forces are introduced into a common base plate. Due to the higher rigidity of the system and the stabilizing forces generated thereby less vibrations are generated, which, among other things, has a positive effect on the winding qualities of the rolls produced. Compared to conventional carrier roll winding machines, a winding machine according to the invention also easier to assemble.

So that the stabilizing forces are further assisted, a second loading roller is connected via a preferably common frame to a base plate carrying the carrier roll winding machine.

In this case, the loading rollers are preferably arranged such that the loading roller can be pressed against the at least one winding roller on one side to a through the axis of rotation of the at least one winding roll perpendicular and that the at least one further loading roller mutually to the passing through the axis of rotation of the at least one winding roll perpendicular to the at least one winding roll is pressed. In this way, the stabilizing and preferably equally large forces are introduced into the system on both sides.

Under technological and constructive aspects, it is advantageous if the loading roller is mutually arranged to the incoming support roller with respect to the passing through the axis of rotation of the at least one winding roll perpendicular and if the at least one further loading roller equilateral to the incoming support roller with respect to the through the axis of rotation of the at least one winding roll going vertical is arranged. This winding roll is stabilized.

In a particularly suitable embodiment of the invention, it is provided that the preferably common frame each comprises a rocker for the respective loading roller and that the respective loading roller is rotatably mounted respectively at the outer end of the associated rocker.

The respective loading roller is mounted on the frame, in particular on the rocker, in such a way that it preferably presses against the winding roller at least laterally. In addition, the first load roller initially also presses vertically from above against the winding roll. Only a lateral arrangement of the loading roller with respect to the winding roll can dampen the rocking or vibration of the roll. The loading roller can be fastened either on a rocker swingable about an axis of rotation or on a linear guide; the function of the loading roller is independent of whether it is guided on a straight line or a circular path. Thus, the respective load roller is inclined relative to a passing through the axis of rotation of the winding roll, the connecting line between the two support rollers intersecting at right angles intersecting perpendicular bisector, at least during most of the winding process, that is at least from reaching a predetermined winding diameter.

According to the invention, the axis of rotation of the rocker of the loading roller reads at least during the winding process at least for most of the time laterally below the axis of rotation of the at least one winding roll and the axis of rotation of the rocker of at least one further loading roller at least during the winding process laterally above the axis of rotation of the at least one winding roll. This provides excellent conditions for the best possible stabilization of the winding roll.

Preferably, the respective rocker extends over the entire width of the at least one winding roller or it comprises two laterally guided on the at least one winding roller pivoting arms.

Advantageously, it can be provided that the respective rocker is pressed against the winding roll at least by means of a preferably controllable / adjustable pressure system. The respective preferably controllable pressure system preferably comprises at least one hydraulic or pneumatic cylinder, in particular two hydraulic or pneumatic cylinders arranged laterally of the at least one winding roller, or an electric spindle. Such components are characterized in particular by a good functionality.

Furthermore, the hydraulic cylinder, the pneumatic cylinder or the electric spindle is preferably articulated on the rocker at the free end of the rocker, in particular in the vicinity of the loading roller.

It is also advantageous if the respective rocker is arranged movable relative to a base plate on which at least one of the support rollers is also rotatably mounted.

In addition, to suppress vibrations, it can be provided that the loading roller comprises a damping device arranged or connected in its interior, in its rocker or with its pressure system. Particularly advantageous is an embodiment of the invention, in which the loading roller comprises a damping device arranged in the interior of the loading roller or on the guide, that is to say on the drive, of the loading roller.

Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.

Figur 1

eine Seitenansicht einer Tragwalzen-Wickelmaschine während des Wickelvorgangs;

Figur 2

eine perspektivische Ansicht der Tragwalzen- Wickelmaschine gemäß Figur 1; und

Figuren 3 bis 6

mehrere Wickelphasen des mit der Tragwalzen- Wickelmaschine ausgeführten Wickelvorgangs.

Show it

FIG. 1

a side view of a carrier roll winding machine during the winding process;

FIG. 2

a perspective view of the carrier roll winding machine according to FIG. 1 ; and

FIGS. 3 to 6

several winding phases of the winding process carried out with the carrier roll winding machine.

The FIG. 1 shows a support roll winding machine 1 for winding a material web 2, in particular a paper or board web, on at least one winding tube 3 to at least one winding roller 4 during the winding process. The winding roll 4 lies in one of two support rollers 5, 6 formed winding bed 7 and it is pressed by at least one load roller 8 in the winding bed 7.

The material web 2 is cut by a non-illustrated, known in the art slitting device before winding into several individual webs, then laterally, as shown, to the jacket 9 of the support roller 5 or alternatively through the gap G between the support rollers 5, 6 around in the winding bed 7 are guided, where they are wound on aligned winding cores 3.

Above the bobbins 4 is now connected via a frame 10 with a support rollers winding machine 1 supporting base plate 11 associated load roller 8 which extends over the entire width of all adjacent bobbins 4 and presses the bobbins 4 in the winding bed 7.

Furthermore, a further loading roller 12 is disposed above the winding rollers 4, which is also connected via the common frame 10 with the support rollers winding machine 1 supporting base plate 11. This further loading roller 12 extends over the entire width of all adjacent winding rollers 4 and presses the winding rollers 4 in the winding bed. 7

The two loading rollers 8, 12 are generally arranged such that the loading roller 8 can be pressed on one side to a passing through the rotation axis 13 of the winding rollers 4 vertical S against the winding rollers 4 and that the further loading roller 12 mutually to the through the axis of rotation 13 of the winding rollers 4th going vertical S against the winding roller 4 can be pressed.

In the execution of FIG. 1 the loading roller 8 is mutually arranged to the incoming support roller 4 with respect to the passing through the rotation axis 13 of the winding rollers 4 vertical S and the other load roller 12 is equal to the incoming support roller 4 with respect to the going through the axis of rotation 13 of the bobbins 4 vertical S arranged.

The frame 10 each comprises a rocker 14, 15 for the respective loading roller 8, 12, which in turn is rotatably mounted respectively at the outer end of the associated rocker 14, 15. The rockers 14, 15 are in turn pivotally mounted about a respective axis of rotation 16, 17, which are mounted in an upwardly projecting lug 18 of the base plate 11. It is understood that the wings 14, 15 can be hinged directly to the base plate 11 without the interposition of the approach 18.

The axis of rotation 16 of the rocker 14 of the loading roller 8, which extends over the entire width of the winding rollers 4, at least during the winding process at least for most of the time laterally below the axis of rotation thirteenth the winding rollers 4 and the axis of rotation 17 of the rocker 15 of the other loading roller 12, however, at least during the winding process laterally above the axis of rotation 13 of the winding rollers 4. The rocker 15 includes two laterally on the front side bobbins 4 vorbeiführbare pivot arms 19th

In the base plate 11, the support rollers 4, 5 are also mounted on lugs 20, 21. In addition, the respective rocker 14, 15 can be pressed against the winding rollers 4 by means of a preferably controllable pressing system 22. The individual Andrücksystem 22 comprises via a pivot shaft 23 in the base plate 11 mounted hydraulic cylinders 24, the piston rods 25 are hinged at the free end or near the free end of the rockers 14, 15 to the desired pressure on the loading rollers 8, 12 Exercise winding rolls 3. Of course, pneumatic cylinders or electric spindles can be used instead of hydraulic cylinders.

Furthermore, the respective load roller 8, 12 comprise a arranged in its interior, in its rocker or with its Andrücksystem or connected damping device.

At the beginning of the winding process, the loading roller 8 is initially arranged perpendicularly or substantially vertically above the winding rollers 4, since the winding bed 7 due to the large diameter of the support rollers 4, 5 leaves no room for an inclined arrangement of the loading roller 8 relative to the winding rollers 4. During the further course of the winding process, the loading roller 8 is then gradually led upwards and reached towards the end of the winding process in FIG. 2 shown position.

The FIG. 2 shows a perspective view of the support roll winding machine 1 according to FIG. 1 , but without the second load roller 12 and associated assemblies.

With a view to a better understanding of FIG. 2 this was based on the FIG. 1 provided with reference numerals.

The FIGS. 3 to 6 show several winding phases of the running with the only schematically illustrated support roll winding machine 1 winding process.

The FIG. 3 shows a winding phase during the beginning of the winding process. The loading roller 8 is initially arranged perpendicularly or substantially vertically above the winding rollers 4, since the winding bed 7 due to the large diameter of the support rollers 5, 6 leaves no room for an inclined arrangement of the loading roller 8 relative to the winding rollers 4. The loading roller 12, however, is not yet at the winding rollers 4 at this winding phase for reasons of space. The movements of the loading rollers 8, 12 are in the FIGS. 3 to 6 represented by so-called movement lines L ₈ , L ₁₂ .

While in the FIG. 4 shown winding phase of the winding process, the loading roller 8 is then gradually led upwards due to the increase in diameter of the winding rollers 4 and the loading roller 12 is now applied to the winding rollers 4 at.

The FIG. 5 shows a winding phase of the further advanced winding process. In this case, both loading rollers 8, 12 are gradually led upwards due to the increase in diameter of the winding rollers 4 until they finally in FIG. 6 reach the position shown. This winding phase is basically the end of the winding process for the bobbins 4.

In summary, it should be noted that a carrier roll winding machine of the aforementioned types is developed such that it has a higher stability and in which the operation is made safer by the invention.

LIST OF REFERENCE NUMBERS

1

Carrier roll winding machine

2

web

3

mandrel

4

reel

5

king roll

6

king roll

7

winding bed

8th

loading roll

9

coat

10

frame

11

baseplate

12

loading roll

13

axis of rotation

14

wing

15

wing

16

axis of rotation

17

axis of rotation

18

approach

19

swivel arm

20

approach

21

approach

22

The presser

23

pivot shaft

24

hydraulic cylinders

25

piston rod

G

gap

L ₈

line of movement

L ₁₂

line of movement

S

vertical

Claims (11)

1. Carrier roll winding machine (1) for winding a web (2), in particular a paper or board web, onto at least one core (3) to form at least one wound roll (4), which lies in a winding bed (7) formed by two carrier rolls (5, 6), having a first loading roll (8) pressing the at least one wound roll (4) into the winding bed (7), and at least one further loading roll (12), the two loading rolls (8, 12) being connected via a frame (10) to a baseplate (11) supporting the carrier roll winding machine (1),
   characterized in that,
   at least during the winding operation, at least for most of the time, the axis of rotation (16) of the swinging arm (14) of the loading roll (8) is located laterally below the axis of rotation (13) of the at least one wound roll (4), and
   in that, at least during the winding operation, the axis of rotation (17) of the swinging arm (15) of the at least one further loading roll (12) is located laterally above the axis of rotation (13) of the at least one wound roll (4).
2. Carrier roll winding machine (1) according to Claim 1,
   characterized in that
   the loading rolls (8, 12) are arranged in such a way that the loading roll (8) can be pressed against the at least one wound roll (4) on one side in relation to a vertical (S) going through the axis of rotation (13) of the at least one wound roll (4), and
   in that the at least one further loading roll (12) can be pressed against the at least one wound roll (4) on the opposite side of the vertical (S) going through the axis of rotation (13) of the at least one wound roll (4).
3. Carrier roll winding machine (1) according to Claim 2,
   characterized in that
   the loading roll (8) is arranged on the opposite side of the ingoing carrier roll (5) in relation to the vertical (S) going through the axis of rotation (13) of the at least one wound roll (4), and
   in that the at least one further loading roll (12) is arranged on the same side of the ingoing carrier roll (5) in relation to the vertical (S) going through the axis of rotation (13) of the at least one wound roll (4).
4. Carrier roll winding machine (1) according to one of the preceding claims,
   characterized in that
   the common frame (10) in each case comprises a swinging arm (14, 15) for the respective loading roll (8, 12), and
   in that the respective loading roll (8, 12) is in each case mounted such that it can rotate at the outer end of the associated swinging arm (14, 15).
5. Carrier roll winding machine (1) according to Claim 4,
   characterized in that
   the respective swinging arm (14, 15) is mounted such that it can rotate about an axis of rotation (16, 17) or can be displaced by means of a linear guide.
6. Carrier roll winding machine (1) according to either of Claims 4 and 5,
   characterized in that
   the respective swinging arm (14, 15) extends over the entire width of the at least one wound roll (4) or comprises two pivoting arms (19) that can be guided laterally past the at least one wound roll (4).
7. Carrier roll winding machine (1) according to one of Claims 4 to 6,
   characterized in that
   the respective swinging arm (14, 15) can be pressed against the at least one wound roll (4) at least by means of a pressure system (22) that can preferably be controlled/regulated.
8. Carrier roll winding machine (1) according to Claim 7,
   characterized in that
   the respective pressure system (22) that can preferably be controlled/regulated comprises at least one hydraulic cylinder (24) or pneumatic cylinder, in particular two hydraulic cylinders (24) or pneumatic cylinders arranged at the sides of the at least one wound roll (4), or an electric spindle.
9. Carrier roll winding machine (1) according to Claim 7 or 8,
   characterized in that
   the hydraulic cylinder (24), the pneumatic cylinder or the electric spindle is attached to the swinging arm (14, 15) at the free end of the swinging arm (14, 15), in particular in the vicinity of the loading roll (8, 12).
10. Carrier roll winding machine (1) according to one of Claims 4 to 9,
    characterized in that
    the respective swinging arm (14, 15) is arranged such that it can move with respect to a baseplate (11), on which at least one of the carrier rolls (5, 6) is likewise mounted such that it can rotate.
11. Carrier roll winding machine (1) according to one of the preceding claims,
    characterized in that
    the respective loading roll (8, 12) comprises a damping device arranged in its interior, in its swinging arm (14, 15) or connected to its pressure system (22).

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