EP1591390A1 - Reeling machine for continuous winding of a webmaterial - Google Patents

Abstract

The air expulsion device (10) for consolidating the web layers and regulating the amount of air trapped in between them comprises a number of adjacent segment rolls (11) with their opposite ends mounted via bearing units (12) on a support profile (13) extending the width of the machine. The bearing units have a counter-bearing (14) and a resilient bearing (15) on the profile side. The counter-bearing is a hinge bearing. The resilient bearing is a preferably closed spring system, preferably a coil or leaf spring, or a preferably closed damping unit, preferably a shock absorber, or a controllable hydraulic or pneumatic piston unit.

Description

The invention relates to a winding machine for continuously winding a Material web, in particular a paper or board web, on a spool to a winding reel, with a carrier drum, with the winding roll a Ni (Winding nip) forms, comprising at least one transport device Storage, the tambour along a preferably horizontal Guideway leads, and with one in the lower part of the winding machine attached air squeezing device when reaching a desired Layer thickness of the winding roll by means of at least one movement device can be applied.

Such winding machines are for example from the European patent EP 0 483 092 B1 or from PCT Publication WO 98/52858 A1 (PR10706 WO) of the applicant and are known in particular in Machines for the production or refinement of material webs, such as Paper or cardboard, used.

In modern winding concepts for material webs, it is necessary today to Preparing a spool change the spool with the almost fully wound Winding roll ("ready-to-roll") into an end position (spool change position) in which then no active contact, no so-called nip, between the carrier drum and the winding roll longer exists. At this time, in the no more nip must be ensured by appropriate measures, that no air pockets between each layer of almost full wound roll wound arise. Furthermore, both the "wrapped" Web tension as well as the line force are maintained, so in the outer area of the winding roll to ensure the desired winding quality can. The resulting problem is the greater, the faster the Winding machines are operated (current order of 1,500 to 2,500 m / min) and the larger the manufactured diameter of the finished reels are (current Order of magnitude 2.5 to 4.5 m).

In a winding machine of the type described has already been tried this Problem to solve, as in the German patent application DE 44 01 804 A1 (PR10035 DE) of the applicant. There is a facility there, comprising a pressure roller with an elastic coating, which is attached to a from a carrier drum remote winding roller by means of a pneumatic drive is pressable. This device serves the purpose of creating air pockets between the individual layers of the winding roll by maintaining to prevent the line force and the "wrapped" during the reel change To maintain web tension.

However, the illustrated pressure roller has the serious disadvantage that they is subject to a deflection due to its own weight, the winding roll, for Example due to different paper thickness, across the width more or less strongly deviates from an ideal cylindrical shape and the pressure roller therefore not even while maintaining a minimum line force on the Surface contour of the almost fully wound winding roll over the web width can create all over. As a result, it follows that the formation of trapped air between the outer layers of the almost fully wound reel can no longer be completely avoided.

Furthermore, from the German patent application DE 100 23 057 A1 (PR11050 DE) of the applicant, a winding machine for continuously winding a Material web, in particular a paper or board web, on a spool to a winding roll known. This winding machine includes one with the winding roll a nip forming carrier drum, at least one a transport device comprehensive storage, the tambour along a preferred horizontal guideway leads, and one at the bottom of the winding machine attached Luftabquetschvorrichtung which can be applied to the winding roll. The Luftabquetschvorrichtung is as an applied carrier profile with by means of bearings formed side by side eccentrically mounted segment rollers, wherein in Interior of the carrier profile of at least one pressure source with a pressure medium filled and surrounded by a guide tube hose is on the non-rotatable bearing bushes of the bearing by means of at least a power transmission element are centrally supported.

However, the illustrated Luftabquetschvorrichtung has the following disadvantages: they is very elaborate in their manufacture and thus expensive in procurement, their Segmented rollers are neither sectional nor fully drivable.

It is therefore an object of the invention, a winding machine of the aforementioned Type to improve such that a desired, preferably uniform line force curve between applied Luftabquetschvorrichtung and surface contour the almost fully wound winding roll over the web width given away is.

This object is according to the invention in a winding machine of the type mentioned solved in that the applicable Luftabquetschvorrichtung off consists of a plurality of juxtaposed segment rollers, each front side are arranged by means of storage units on a machine-width carrier profile, wherein the bearing units profile each side of a joint bearing and a yielding Have storage.

This results in the advantage that the respective joint bearing an exact Positioning of the corresponding segmented roller ensures, whereas the respective compliant storage an automatic and individual adjustability the corresponding segment role in the necessary adjustment to the surface contour the almost fully wound winding roll allows. This will created the possibility of a desired, preferably uniform line force curve between applied segment rolls, that is, applied Luftabquetschvorrichtung and surface contour of the almost fully wound winding roll across the web width. Any bumps in the Surface contour of the almost fully wound winding roll, in particular in the Edge areas, are by an automatic hiring the individual segment roles balanced. Thus, locally different contact forces avoided. The technical construction of the Luftabquetschvorrichtung invention further provides a highly self-damping system, which of the web or induced by the winding roll vibrations largely eliminated.

In a particularly suitable for retrofitting to existing winding machines Embodiment, the storage units profile side each have two bearing plates on, by means of the respective joint bearing and the respective yielding Storage are connected together. The one bearing plate is on the Carrier profile attached, in particular solvable by means of screwed or unsolvable by welding, whereas the other bearing plate one between two segment roles arranged bearing wall wearing bearing eye, in particular by means of welds. This embodiment is characterized in particular a high degree of flexibility and rigidity.

A simpler, especially suitable for new winding machines embodiment has a respective joint bearing, which directly on a between two segmented rollers arranged bearing wall and on the machine width Carrier profile is arranged. This embodiment provides in particular cost and weight advantages.

Thus, an optimal application of the segmented roller to the surface contour of the almost fully wound winding roll is possible, the joint storage is preferred on the winding roll side facing the storage unit and the yielding Storage preferably on the side facing away from the winding roller of the storage unit arranged. Moreover, this results in the smallest possible spread the optionally offset laying lines of the segmented rolls to the said Surface contour.

The joint bearing is preferably designed as a hinge bearing, since this art storage certain advantages in terms of reliability and maintenance brings with it.

The resilient storage in a preferred embodiment comprises a preferably Closed spring system, in particular a screw or leaf spring, a preferably closed damping unit, in particular a shock absorber, or a controllable piston unit with hydraulic or pneumatic admission. These types of compliant storage meet the demands placed on them Demands at low cost, low operating costs and high operational safety.

When using adjustable resilient bearings, the same are preferred over sectioned across the machine width, with different sections in each section Impact forces are generated. The generation of different forces of action is in particular caused by a known control unit and supervised. The individual sections can in turn be regulated in groups be, for example, symmetrical to the material web. By the generation Moreover, different forces of action in the individual sections can be integrated set the desired pressure profile, which in particular NCR papers and / or not exactly cylindrical winding rollers is advantageous. The pressure profile may in particular also for the displacement of possibly trapped Air to the outside to the edges of the winding roll out, for example, at larger forces in the middle of the track and smaller forces in the both border areas.

So between two adjacent segment roles no speed differences arise, they are preferably with each other with an axle coupling coupled. This creates at least partially same circumferential speeds at the segment rollers. Furthermore, via coupled segment rollers Also circumferential forces are transmitted to the winding roll, for example can be used to decelerate the winding roll.

In the context of an optimal design of Luftabquetschvorrichtung are Segmented rollers preferably by means of at least one preferably the front side of the Luftabquetschvorrichtung arranged drive unit drivable. With that you can the segmented rollers also before application to the surface contour on the peripheral speed be accelerated, so that once again a gentle, This means that jerkless application of the segmented rolls is made possible.

Regarding the technological requirements of the air squeezing device it is advantageous if the segment roll has a diameter in the range of 200 to 500 mm, preferably from 250 to 350 mm. The width of the individual Segmented rollers can vary in a range of 200 to 2,500 mm, depending on whether over the entire width of the web an equalization of the contact pressure (small width ranges) or only at the two edges of the material web a balance should take place (large width area in the middle of the track, small Width ranges at the web edges). These dimensions ensure that the material web no damage due to the action of the air squeezing device, For example, grooves or other markings, and property changes, For example, glosses, learns.

Furthermore, it is in order to the greatest possible avoidance of Luftaufstauungen before the Luftabquetschvorrichtung advantageous if the segmented roller gummed and / or grooved surface. The rubberized surface of the segmented roller preferably has a hardness in the range of 50 to 200 P & J (Pussy & Jones), preferably from 80 to 120 P & J (Pussy & Jones).

Under design or manufacturing aspects is the Carrier profile preferably a support tube with a rectangular and / or square Pipe cross-section.

To avoid as much as possible air pockets between the individual To reach layers of the winding roll, the Luftabquetschvorrichtung is in one Can be applied to the circumferential surface of the outer surface of the winding roll, at least from Bake point of the material web on the lateral surface of the winding roll to the vertical Low point of the winding roll is enough. Provide upstream and downstream jobs a loss of effectiveness with respect to said avoidance.

With regard to runability and efficiency of the winding machine, it is an advantage, yes even necessary, the air squeezing device before opening the nip between the Carrying drum and the winding roll to the winding roll to air pockets and / or to avoid a lateral course of the material web.

The Luftabquetschvorrichtung is substantially linear, preferably horizontal and / or vertically, and / or substantially along a contour of a circle segment applied. These application movements result in practice in terms of their Regulations and agitated mass or mass changes advantages.

Another advantage is that when forming an effective range between the winding roll and the Luftabquetschvorrichtung the parent effect in the effective range is adjustable by a displacement of Luftabquetschvorrichtung. This will a good, up to the last winding layers present winding result, that is a winding roll with a defined, uniform winding hardness over the entire Wickeldauer achieved, as a fine adjustment of the effect in the effective range between the winding roll and the Luftabquetschvorrichtung also during the final Winding phase, in which no nip between the carrier drum and the Winder is present more, is possible.

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

Figur 1:

eine schematische Seitenansicht einer Wickelmaschine mit erfindungsgemäßer Luftabquetschvorrichtung während der Hauptwickelphase;

Figur 2:

eine schematisierte Seitenansicht einer Wickelmaschine mit erfindungsgemäßer Luftabquetschvorrichtung während der Endwickelphase;

Figur 3:

eine schematische Darstellung (Querschnitt) der erfindungsgemäßen Luftabquetschvorrichtung; und

Figur 4:

eine schematische und teilweise Darstellung (Längsschnitt) der erfindungsgemäßen Luftabquetschvorrichtung.

Show it

FIG. 1:

a schematic side view of a winding machine with inventive Luftabquetschvorrichtung during the main winding phase;

FIG. 2:

a schematic side view of a winding machine with inventive Luftabquetschvorrichtung during Endwickelphase;

FIG. 3:

a schematic representation (cross section) of the Luftabquetschvorrichtung invention; and

FIG. 4:

a schematic and partial representation (longitudinal section) of the Luftabquetschvorrichtung invention.

The winding machine 1 shown in schematic form in FIG. 1 for continuous operation Winding a web 2, in particular a paper or Cardboard web, on a spool 3 to a winding roll 4 also includes a Anpresstrommel or support roller designated carrier drum 5, either rigid stored or along an imaginary, horizontal lines shown by dashed lines G is displaceable by means of a pressing device, not shown (double arrow P1) and by a drive, in the case shown by a center drive, is driven. The different types of storage and movement for the Carrying drum 5 are in particular in the German patent application DE 198 07 897 A1 (PR10678 DE) of the applicant s; its content becomes hereby the Subject of this description.

The material web 2 is either from a calender, not shown here or a likewise not shown here dry section of a paper or Carried out carton machine, then initially wraps around a not shown Spreader roller and then runs in the direction of arrow on the lateral surface 6 of the Carrying drum 5, the outer surface 6 of the carrier drum 5 wraps around a certain angle (peripheral area) until it is detached by the resulting Winding 4. The detachment of the web 2 of the carrier drum 5 and the Conversion to the resulting winding roll 4 is done in the so-called nip (Winding nip) 7, which during the main winding phase between the Carrier drum 5 and the winding roller 4 forms.

The winding roll 4 is by means of a lifting device, not shown, a movable Transport device in the movement direction indicated by the arrow P2 guided. The transport device can, for example, from a Spindle drive are formed, which is driven by an electric motor Includes threaded spindle. The transport device is used for holding and guiding of the preferably horizontal rails (guideway) 9 resting Tambours 3 of the winding roll 4. A device for regulating the nip 7 line power L during the main winding phase is, for example, in the already mentioned German patent application DE 198 07 897 A1 (PR10678 DE) of the applicant. In the illustrated in Figure 1 Main winding phase is an empty drum ("empty drum") 8 of a not shown Holding device held at a distance from the carrier drum 5 ( "Standby position").

In the lower part of the winding machine 1 is in dash-dot form an air squeezing 10, during the main winding phase shown is in no active relationship with the winding roll 4. It is rather in a waiting position. The Luftabquetschvorrichtung 10 can with well-known Mechanisms both substantially linear (arrows), preferably horizontal and / or vertically, as well as substantially along a Kontor a circle segment (Arrow) and it is on reaching a desired layer thickness S to the winding roll 4 by means of at least one known movement device applied.

FIG. 2 shows a schematic side view of a winding machine 1 According to the invention Luftabquetschvorrichtung 10 during Endwickelphase. During this Endwickelphase the winding roll 4 with the already described Transport device of the carrier drum 5 with resolution of the nip and moved away to form a free train. Time is then offset the previously held at a distance from the carrier drum 5 empty drum 8 from the holding device, not shown, on the carrier drum 5 with training a new nip 7 attached. With the web separation, not shown begins then the Anwickelphase for the empty drum 8, wherein the winding roller 4 then is no longer wound and horizontally (arrow P2) in an end position E (Tambourwechselposition) is moved.

FIG. 3 shows a schematic illustration (cross section) of the invention Air squeezing device 10.

The applicable to the winding roll 4 Luftabquetschvorrichtung 10 consists of a plurality of juxtaposed segment rollers 11, each frontally by means of Storage units 12 arranged on a machine-width carrier profile 13 are, wherein the bearing units 12 each profile side of a joint bearing 14, preferably in an embodiment of a hinge bearing, and a resilient Storage 15 with a preferred adjustment V (arrow) in the range of 1 to 30 mm, preferably from 2 to 15 mm.

The bearing units 12 each have two bearing plates 16.1, 16.2 on the profile side, wherein the lower bearing plate 16.1 is mounted on the carrier profile 13 and wherein the upper bearing plate 16.2 arranged between two segment rollers 11 Bearing wall 17 together bearing eye 18 carries. The two bearing plates 16.1, 16.2 are by means of the respective joint bearing 14 and the respective yielding Storage 15 connected to each other, wherein the joint bearing 14 on the Winding 4 facing side of the storage unit 12 is arranged and wherein the flexible storage 15 on the winding roll 4 side facing away from the storage unit 12 is arranged. The bearing plates 16.1, 16.2 can of course also extend over at least two adjacent segment rollers 11.

In another, but not shown form, the respective joint bearing also directly on a arranged between two segment rollers bearing wall and be arranged on the machine-width carrier profile.

The resilient mounting 15 includes a preferably closed spring system 19, in particular a screw or leaf spring. She can, however a preferably closed damping unit, in particular a shock absorber, or a controllable piston unit with hydraulic or pneumatic Include admission.

The carrier profile 13 is shown in FIG. 3 a carrier tube with a rectangular and / or square tube cross-section. It can, however Also have a polygonal pipe cross-section, if the application of this allows.

In FIG. 3, it can be seen that the air squeezing device 10 is in a peripheral region U to the lateral surface 20 of the winding roll 4 is substantially linear, preferably horizontally and / or vertically, and / or substantially along one Contour of a circle segment can be applied. The peripheral region U extends at least from the contact point A of the web 2 on the lateral surface 20 of the winding roll 4th to the vertical low point T of the winding roll 4th

The Luftabquetschvorrichtung 10 is before opening the nip 7 (Figure 1) between the Carrying drum 5 and the winding roller 4 to the winding roller 4 can be applied.

Immediately upon formation of an effective range W between the winding roll 4 and the Luftabquetschvorrichtung 10 (Figure 2) is the higher-order effective force K in the effective range W regulated by a displacement of Luftabquetschvorrichtung 10. One such control loop belongs to the field of knowledge of the average expert and is for example in the already mentioned German patent application DE 198 07 897 A1 (PR10678 DE) of the Applicant for a carrier drum. The Air squeezing device 10 is maintained while maintaining the parent effect K shifts in the active area W to the winding roll 4. The relocation is only preferably terminated when the winding roll 4 horizontally (arrow P2) their final position E (Tambourwechselposition) has reached.

FIG. 4 shows a schematic and partial illustration (longitudinal section) of FIG Air squeezing device 10 according to the invention.

The applyable Luftabquetschvorrichtung 10 consists, as already mentioned, of several side by side mounted segment rollers 11, each front side means Bearing units 12 (double bearing unit between two segment rollers 11, single bearing unit on end-side segment roller 11) on a not shown Machine width carrier profile are arranged. The storage units 12 have Profile side each two bearing plates, with only the upper bearing plate 16.2 is shown, the arranged between two segment rollers 11 bearing wall 17 with bearing eye 18 carries. The two segment rollers 11 end of the Luftabquetschvorrichtung 10 are merely simple in a bearing wall 17 together with bearing eye 18 stored.

Two adjacent segment rollers 11 are in a common bearing sleeve 21st supported by rolling bearings 22 and with an axle coupling 23 of known design Coupled with each other.

Furthermore, the segment rollers 11 by means of at least one preferably frontally the air squeezing 10 arranged drive unit 24 drive - bar, wherein in the figure 4, only the drive pulley 25 of the not explicitly shown Drive unit 24 is shown; However, the drive pulley 25 can also be designed as a drive pinion. Thus, the segment rollers 11 also before Application to the surface contour of the almost fully wound reel 4 the peripheral speed of the same are pre-accelerated, so that in turn a gentle, that is jerkless application of the segment rollers 11 allows becomes.

The segmented rollers 11 have a diameter D in the range of 200 to 500 mm, preferably from 250 to 350 mm, and a width B in a range of 200 to 2,500 mm.

Furthermore, the segment rollers 11 rubberized (Figure 3) and / or grooved Surfaces 26 on; Of course, they may also have flat surfaces 26. The rubberized surfaces 26 of the segment rollers 11 preferably have one Hardness H in the range of 50-200 P & J, preferably 80-120 P & J.

The yielding and non-detailed bearings of the bearing units 12 can be sectioned across the machine width, with the individual Sections through different forces K (dashed lines) to the Bearing units 12 different contact pressures in the individual sections can be generated. The generation of the different effective forces K is preferred initiated and monitored by a known control unit 27.

In summary, it should be noted that by the invention, a winding machine of the type mentioned above is improved such that a desired, preferably uniform line force curve between applied Luftabquetschvorrichtung and surface contour of the almost fully wound winding roll is given across the web width.

LIST OF REFERENCE NUMBERS

1

winder

2

web

3

drummer

4

reel

5

carrying drum

6

Lateral surface (carrier drum)

7

Nip (winding gap)

8th

Empty Tambour ("empty tambour")

9

Rail (guideway)

10

Luftabquetschvorrichtung

11

segment role

12

storage unit

13

carrier profile

14

joint bearing

15

Compliant storage

16.1, 16.2

bearing plate

17

bearing wall

18

bearing eye

19

spring system

20

Lateral surface (winding roll)

21

bearing sleeve

22

roller bearing

23

axis coupling

24

drive unit

25

sheave

26

surface

27

control unit

A

accumulating point

B

width

D

diameter

e

end position

G

Horizontal straight line

H

hardness

K

Effectiveness (dashed line)

L

line force

P1

double arrow

P2

arrow

S

layer thickness

T

Low point (winding roll)

U

Peripheral area (winding roll)

V

Adjustment path (arrow)

W

effective range

Claims (21)

Winding machine (1) for continuously winding a material web (2), in particular a paper or board web, onto a spool (3) to form a winding reel (4), comprising a reel drum (5) which forms a nip (4) with the winding reel (4). 7), with a storage comprising at least one transport device, which guides the spool (3) along a preferably horizontal guide track (9), and with an air squeezing device (10) mounted in the lower region of the winding machine (1) Layer thickness (S) to the winding roller (4) can be applied by means of at least one movement device,
characterized in that the applicable Luftabquetschvorrichtung (10) consists of a plurality of juxtaposed segmented rollers (11) which are respectively arranged on the front side by means of bearing units (12) on a machine-width carrier profile (13), wherein the bearing units (12) profile side each having a hinge bearing (14 ) and a resilient mounting (15). Winding machine (1) according to claim 1,
characterized in that the bearing units (12) on the profile side each have two bearing plates (16.1, 16.2), wherein the one bearing plate (16.1) is mounted on the carrier profile (13) and wherein the other bearing plate (16.2) at one between two segment rollers (11 ) arranged bearing wall (17) is arranged, and
that the two bearing plates (16.1, 16.2) are interconnected by means of the respective articulated mounting (14) and the respective resilient bearing (15). Winding machine (1) according to claim 1,
characterized in that the respective joint bearing (14) is arranged directly on a between two segment rollers (11) arranged bearing wall (17) and on the machine-width carrier profile (13). Winding machine (1) according to claim 1, 2 or 3,
characterized in that the hinge bearing (14) on the winding roller (4) facing side of the bearing unit (12) is arranged, and
in that the resilient mounting (15) is arranged on the side of the bearing unit (12) facing away from the winding roller (4). Winding machine (1) according to one of the preceding claims,
characterized in that the joint bearing (14) is designed as a hinge bearing. Winding machine (1) according to one of the preceding claims,
characterized in that the resilient mounting (15) comprises a preferably closed spring system (19), in particular a screw or leaf spring. Winding machine (1) according to one of claims 1 to 5,
characterized in that the resilient mounting (15) comprises a preferably closed damping unit, in particular a shock absorber. Winding machine (1) according to one of claims 1 to 5,
characterized in that the resilient mounting (15) comprises a controllable piston unit with hydraulic or pneumatic loading. Winding machine (1) according to claim 8,
characterized in that the resilient bearings (15) are sectioned across the machine width, and
that different effective forces (K) can be generated in the individual sections. Winding machine (1) according to one of the preceding claims,
characterized in that two adjacent segment rollers (11) are preferably coupled to one another with an axle coupling (23). Winding machine (1) according to one of the preceding claims,
characterized in that the segment rollers (11) by means of at least one preferably frontally of the Luftabquetschvorrichtung (10) arranged drive unit (24) are drivable. Winding machine (1) according to one of the preceding claims,
characterized in that the segmented roller (11) has a diameter (D) in the range of 200 to 500 mm, preferably from 250 to 350 mm. Winding machine (1) according to one of the preceding claims,
characterized in that the segmented roller (11) has a width (B) in the range of 200 to 2,500 mm. Winding machine (1) according to one of the preceding claims,
characterized in that the segmented roller (11) has a rubberized and / or grooved surface (26). Winding machine (1) according to claim 14,
characterized in that the rubberized surface (26) has a hardness (H) in the range of 50 to 200 P & J, preferably 80 to 120 P & J. Winding machine (1) according to one of the preceding claims,
characterized in that the carrier profile (13) is a carrier tube having a rectangular and / or square tube cross-section. Winding machine (1) according to one of the preceding claims,
characterized in that the Luftabquetschvorrichtung (10) in a peripheral region (U) to the lateral surface (20) of the winding roll (4) can be applied, at least from the casserole point (A) of the web (2) on the lateral surface (20) of the winding roll ( 4) to the vertical low point (T) of the winding roll (4) is sufficient. Winding machine (1) according to one of the preceding claims,
characterized in that the Luftabquetschvorrichtung (10) before opening of the nip (7) between the carrier drum (5) and the winding roller (4) to the winding roller (4) can be applied. Winding machine (1) according to one of the preceding claims,
characterized in that the Luftabquetschvorrichtung (10) is substantially linear, preferably vertically, can be applied. Winding machine (1) according to one of claims 1 to 18,
characterized in that the Luftabquetschvorrichtung (10) can be applied substantially along a contour of a circular segment. Winding machine (1) according to one of the preceding claims,
characterized in that when forming an effective range (W) between the winding roll (4) and the Luftabquetschvorrichtung (10), the superordinate active force (K) in the effective range (W) by a displacement of Luftabquetschvorrichtung (10) is adjustable.

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