FI90522C - Wheelchair procedure - Google Patents

Description

90522

Method on a roller device Fdrfarande vid rullstol 5

The invention relates to a method of winding a paper web or the like, in particular in a poppy-type winder, which feeds a first dripping roll, for example a winding cylinder and a second dripping roll, for example a tear roll, forming a nip into which the web is introduced. a second rotating roll supported by its bearings on the winding rails so that at least part of the nip pressure acting on the nip is generated by the force component of the ground traction, in which method the second rotating roll is filled -to the roll, the rolling rails are set at the desired angle, a new second pydrivå roll, already accelerated to the same frame speed as the first 20 rolls, is placed on the support of the rolling rails and at the same time the nip contacts with the first roll and the web is cut and rotated around a new second rotating roll.

With regard to the state of the art, reference is made to FI patent publications 49276 and 69818:; As well as GB application 2009108, which discloses a method in a winder in which, after filling a roll into a finished roll, the finished roll is moved to an exchange station and the winding rails or the like are tilted to a desired angle to receive a new roll.

30 In the event of an exchange of some reels, eg a pope reel, the first time ... On the secondary rails, discontinuities are easily caused between the winding cylinder and the spool roll, e.g. line pressure spikes, which cause bottom wrecking.

The object of the invention is to provide a reel in which the above problem does not occur. The object of the invention is to provide a reel in which there are no discontinuities causing bottom wrecking.

2 90522

In order to achieve the objectives set out above and later, the method according to the invention is essentially characterized in that before the complete roll is moved to the exchange station, the Coiset rolling rails, which are at least partly an extension of the rolling rails, are moved at the same angle or a full roll may move over the joint.

Another preferred embodiment of the method according to the invention is mainly characterized in that before moving the complete roll to any of the exchange stations, the angle of the winding rails is adjusted so that the second winding rails, which are fixed, form an extension over the winding rails.

In the invention, the winding of the track on the spool roll is started against the winding cylinder 15 at a point where the force component in the direction of the center of the winding cylinder of the traction force applied to the spool roll is suitable to form a line load.

The change of the force component is achieved in several different ways, e.g. by adjusting the inclination of the rolling rails or forks. As the swab size increases, the slope is reduced to fit.

According to the invention, the discontinuities occurring in the exchange or transfer operation of the paper winder from the primary rails to the secondary rails can be eliminated, e.g. by starting rolling directly from the rails.

When the full tampon rotates on the secondary rails, the primary rails can be moved to the optimal inclination position for line pressure, so that the line load, i.e. line pressure, is desired in the entire cross-machine direction.

In one embodiment, when the full tampon rotates on the secondary rails, it is moved to a braking position, after which the primary rails can be moved to the optimal inclination position for line pressure so that a line load, i.e. line pressure, is desired across the entire machine. In this embodiment, as the size of the spool increases, as the rolling li 3 90522 progresses, the slope flow of the primary rails is reduced. The exchange, i.e. transfer to the secondary rails, takes place by moving the secondary rails to the corresponding inclination angle with the primary rails, whereby the replacement tampel rolls over the splice point, at which point the primary and secondary rails move in synchronism, applying a line load.

The system according to the invention also achieves other advantages. For example, there is no change at the beginning of rolling and the load situation can be seen in nature by observing the inclination of the rails.

10

In the following, the invention will be described in more detail with reference to the figures of the accompanying drawing, to which, however, the invention is in no way narrowly limited.

Figure 1 schematically shows an arrangement for achieving a uniform line or nip pressure.

Figure 2 schematically shows an embodiment of an arrangement according to the invention suitable for use in unstoppable winding.

Figure 3 schematically shows another embodiment of an arrangement according to the invention suitable for use in endless winding.

i '25

Figure 4 schematically shows an arrangement according to the invention adapted to an exchange event.

As shown in FIG. The line load 35 is obtained by changing the position of the spool iron 20 in the winding cylinder ____ 15 so that the nip point N fractures and at the same time the magnitude of the force component Gr causing the line load 4,90522 changes. The easiest way to change the force component Gr is to adjust the inclination a of the winding rails 10, i.e. the angle α. The line load is the weight of the trough Gr - G · sin a, i.e. the tamp iron-iron 20 and the web the angle of inclination α is, of course, reduced to maintain a uniform line or nip load, preferably from about 20 ° to 1 °.

The inclination angles α of the rolling rails 10 are adjusted by the actuator e.g.

10 by means of a screw jack 30, a cylinder or the like. Many known arrangements are suitable as slope angle α adjusters 30. The winding rails 10 are pivotally attached to the winding cylinder 15, preferably the winding rails 10 are articulated to the center of the winding cylinder 15.

15

According to Figure 2, the arrangement according to the invention is suitable for use when the winding is endless. Figure 2 shows a structure in which two winding cylinders 15 - a rail 10 are used in a system. In Fig. 2, the guide rollers of the web W are denoted by reference numeral 25. As shown in Fig. 2, as the size of the tampon 20 increases, the angle α is reduced. When the first spool 20 is filled, the web W is fed to a second winding system which operates in a similar manner.

Figure 3 shows another possibility for a system in which the drive-25 then has two winding cylinders 15 - a rail 10 in the system. The web W is fed via guide rollers 25 to a winding cylinder 15, from which it is further passed to a spool roll 20 supported by the rail 10. At the end of the winding, the web W is fed to another winding system. Figure 6 shows in broken lines the position of the rails 10 and the tampons 20 when the tampon 30 is full.

According to Fig. 4, e.g., the change of the pop-reel from the primary rails 10 to the secondary rails 11 is performed by the primary rails 10, whereby the full spool 21 rotates on the secondary rails 11. The full spool 21 is moved to the braking station, after which the primary rails 10 I; 5 90522 can be moved to the optimal position for line pressure. The line pressure, i.e. the line load Gr, is in the entire transverse direction of the plane,

Gr - G · sin a, As the tamper 20 increases, the angle α decreases as the diameter of the tamper 20 continues to increase. The transfer to the secondary rails 11 takes place by moving the secondary rails 11 to a corresponding angle o with the primary rails 10, whereby the full tampon 21 rolls over the splice point, during and after which the primary rails 10 and the secondary rails 11 move in sync with the line load. The secondary rails 11 can also be permanently attached, in which case the line load is adjusted in question. on rails 11 10 normally by means of rolling forks.

The invention has been described above only with reference to some of its preferred embodiments. However, it is not intended to limit the invention in any way to these examples, but many modifications and variations are possible within the scope of the inventive idea defined by the following claims.

Claims (3)

6 90522 A method of winding a paper web or the like, in particular in a poppy-type winder, comprising a first rotating roll, for example a winding cylinder (15) and a second rotating roll, for example a tampon roll (20), forming a nip (N) into which the web ( W) is introduced, and in which the web (W) in the nip (N) is subjected to a nip pressure (Gr) and after which the web (W) is wound on said second rotating roll (20) supported by its bearings on the winding rails (10) so that 10 at least part of the nip pressure (Gr) acting on the nip (N) is generated by a force component caused by the gravity of the ground, in which method the second rotating roll (20) is filled from a web (W) , detached from the nip contact with the first roller (15), the roller rails (10) are set at the desired angle (a), a new second rotating roller (20) is already accelerated at the same frame speed like the first roll (15), is placed on the support of the winding rails (10) and at the same time in nip contact with the first roll (15), and the web (W) is cut off and started to wrap around a new second roll 20 (20), characterized in that before the roll (21) to the exchange station, the second winding rails (11), which are at least in part an extension of the winding rails (10), are moved at the same angle (a) as the rails (10) so that the second rotating roller (20) or the full roller (21) can move over. 25 Method according to Claim 1, characterized in that the winding rails (10) and the second winding rails (11) move in synchronism, adjusting the line load. 3. A method of winding a paper web or the like, in particular in a pop-type winder, comprising a first rotating roll, for example a winding cylinder (15) and a second rolling roll, for example a tampon roll (20), forming a nip (N) into which the web (W) is introduced , and in which the web (W) in the nip (N) is subjected to a nip pressure (Gr) and after which the web (W) is wound on said second floating roll (20) supported by its bearings on the winding rails (10) such that i, 7 90522 at least part of the nip pressure (Gr) acting on the nip (N) is generated by a force component caused by the traction of the ground, in which method the second rotating roll (20) is filled from the roll (W) wrapped around it into a complete roll (21), said full roll (21) 5 to the exchange station, detached from the nip contact with the first roll (15), the roller rails (10) are set at the desired angle (a), a new second rotating roll (20) is already accelerated in the same frame at a speed other than the first roll (15), is placed on the support of the winding rails (10) and at the same time in nip contact with the first roll (15) and the web (W) 10 is cut and started to rotate around the new second rolling roll (20). (21) to the exchange station, the angle (e) of the winding rails (10) is made such that the second winding rails (11), which are fixed, form an extension to the winding rails (10) so that the full roll (21) can move over the splice point. 8 90522