FI122747B - Wheelchair for continuous roll-up of fiber web - Google Patents

Description

Fastener for continuous winding of a fibrous web -Upprullningsanordning för kontinueligt upprullning av fiberbana

The invention relates to a reel for continuously winding a fibrous web around a reel roll into a machine reel comprising: a reeling cylinder for forming a nip 5 pin with a reel reel; a carrier body arranged to support the machine reel, by means of which the carrier reel serving as the core of the machine reel is displaceable in the x direction; wherein the fibrous web in the reel winder can be reeled in an oscillating manner on the machine reel.

A roller is a device that rolls material produced as a continuous fibrous web into a roll-machine shape. In a fiber web production process, rewinding is generally the first sub-process in which continuous production is interrupted sequentially. The machine reel is formed around a reel core acting as a reel core, i.e., one fiber web on the reel has a beginning and an end. The trend in the industry is the steady increase in the size of machine rolls, which causes a constant need for the development of reel rollers. 15 In practice, the sizing of a reel roll determines the maximum size of the reel. However, since it is a dynamic environment and the fibrous web is a rollable material susceptible to various faults, the function of the reel as a maintainer of paper or board machine efficiency is very significant. One of the reasons for the continued increase in machine reel size is the desire to have fewer interfering or distracting start-ups and endings for fiber web production.

The method disclosed in Fl patent 91383 (EP 0483092 B1) once shifted the size of machine rolls to a new size when the initial part of the machine roll could be constructed in a manner that is good for the characteristics of the fibrous web being wound. The importance of the first part is increased when the amount of fibrous web to be wound up is increased because the first part serves as the "" basis "of the roll 25 structure. One of the technology-developing features here was the advanced center roll torque achieved by primary and secondary center drive, which allowed the use of versatile winding parameters in the construction of the machine roll. Prior to this solution, the prior art was so-called. a pope reel, in which the g machine reel was constructed by pressing against the reel driving roller,

CL

The 30-roll machine roll was formed by friction between the winding cylinder and the machine roll.

S

C/O

The method disclosed in U.S. Patent No. 5,370,327 once introduced the idea for the first time that the machine reel would be constructed in one vertical plane so that the machine reel would be on the horizontal rails at the same vertical height throughout the reeling. F1 91383 also proposed this type of solution, but 35 moves the reel roll in a pope-type position to the starting position 2 before the winding begins. In U.S. Patent No. 5,370,327, a movable winding cylinder allows the center of the reel roll to remain constant. An advantage of this solution is the change of nip force adjustment from loading on the machine roll side to loading on the standard roll reel.

In addition to the "pioneer patents" of the second generation of fasteners in the art described above, there is a wide variety of embodiments in which the principles described in these two patents have been further developed. One such is U.S. Patent 6,345,431, which discloses several alternatives for arranging a fibrous web on a machine roll in an oscillating manner. WO 2007/010094 A2 also discloses some possible solutions for oscillating the fiber web.

In a commercially available continuous reel reel, oscillation in secondary reeling occurs by deflecting the machine reel and reel cylinder in the machine direction, i.e., the fiber web is folded. This is described in more detail in DE 19939506. This solution requires a movable winding cylinder and can thus influence the tensile profile of the incoming fiber web.

In the Applicant's ConttiReel Plus Continuous Reel, the machine reel is oscillated in the transverse direction during secondary rewinding so that the carrier rolls that move the machine roll in the x direction and load are also moved in the y direction.

In the description of the present invention, the following designations are used for ease of explanation: the machine direction (MD) is called the x-direction, the cross direction (CD) is called the y-direction, and the elevation is called the z-direction. The upstream direction of the fibrous web is referred to as the upstream direction and the upstream direction of the fibrous web is called the downstream direction. The reel core is referred to herein as the reel spool, but could equally well be called the reel axis.

It is an object of the invention to provide a solution which enables a simple and reliable operation of a reel which can, if desired, reel the fibrous web into an oscillator.

CL

killoidusti. It is also an object of the invention to provide a solution which rolls 30 is based on the known principle of forming a machine reel by means of a roller cylinder.

(M

The retractor according to the invention is characterized in that the support frame is arranged to be movable in the y-direction relative to the frame to provide an oscillating movement path of the reel roll and the drive frame has an integrated drive for generating torque on the machine roll.

In this way, the transverse oscillation of the machine roll is accomplished by moving the support frame supporting the reel roll in the transverse direction as the machine roll follows. 5 Bearing members are provided below the support frame, whereby the sliding surfaces are easily slipped in a low-friction manner against each other because they are low-friction. Preferably, for this purpose, a planar slide bearing is provided between the support frame and the frame for carrying the load caused by the mass of the machine roll.

In certain embodiments, the support frame is coupled to a subframe having a planar sliding bearing between the support frame and the subframe or subframe and the frame to carry the load caused by the mass of the machine roll. In a further embodiment of the preferred embodiment, a guide rail is provided between the rolling rail or the subframe and the frame to control the movement of the rail in order to control the y-direction movement of the rolling rail. In the context of the present invention, a frame means a part of a reel which is arranged static with respect to a building and through which the loads caused by the mass of the machine roll and the weight of the reel itself are transmitted to the building.

Adequate oscillation of the machine roll reduces the interference that narrow wafers of the fibrous web can cause in the winding or machine roll structure. These include, but are not limited to, obstruction or inhibition of air venting at the ends of the machine roll, elongation of the fiber web on the machine roll, and the like. These potential problems increase as the diameter of the machine roll increases, i.e. the effect is multiple. Generally, oscillation, in which the fibrous web is deflected from the edge to the edge by about 10 centimeters from edge to edge during winding, is sufficient to obviate the problems caused by old age. It is also important to adjust the oscillation length of the fibrous web to be consistent so that the fibrous web is not unduly stretched as a result of the oscillation. Oscillation peak i £! new Losk = v * W, where v is the production rate and t0Sk is the time at which one reciprocating oscillation motion is performed. For example, with an oscillation cycle of one and a half minutes and a fiber web production speed of 1800 m / min, the oscillation length is S 2700 meters, which is sufficient in most cases.

CD

O) § The invention will now be described in more detail with reference to the accompanying figures.

CM

1 shows an embodiment of the invention as viewed in the x direction, 4 shows an embodiment of the invention as viewed in the y direction.

Figure 1 shows the second side of the reel according to the invention (use-side) of the body 20 and the spool end area 6 in the x direction, or machine direction, as viewed. A retractor 1 for continuously wounding a fibrous web W around a reel 5 is turned into a machine reel 6. The figure shows an embodiment having a support frame 23 arranged to support a machine reel 6 and having a reel in the reel winder 1, the fiber web W can be reeled in an oscillating manner on the machine reel 6. For the x-axis movement of the reel, conductors 26x or the like are provided which allow movement and possibly also carry a z-direction load. The support frame 23 is arranged to be movable in a y direction relative to the frame 20 to provide an oscillating path for the reel roll 5 and integrated with the drive frame 23 to drive 8 torque on the machine roll 6. This solution achieves a relatively simple and functional 15 design.

Reel drive side and a front side support frames 23 can be connected to each other to synchronize the x-direction and y-direction movement of the mechanically or electrically. The electrical connection then uses a suitably accurate position measurement and a servo, step motor or similar movement arrangement capable of precise positioning. The mechanical synchronism uses the service side frames are connected to each other via, for example, box-type frame structure. This housing structure retains its shape under various loading situations, whereby no additional torsional or bending forces are generated on the reel roll and the position is not incorrect, for example, relative to the winding cylinder.

£! Further, it can be seen from Figure 1 that a guide wire 26y is provided between the support body 23 and the subframe 21 (or between the support body 23 and the body 20 - not shown) to control the y-direction movement of the support body 23. The above i cv illustrates the various placement alternatives, since in principle the guiding rail 1 in question can be placed on either side of the subframe 21 without significantly changing the functionality. Further, the supporting frame 23 is connected to the subframe 21, 5 between which subframe 21 and the frame 20 or the supporting frame 23 and the subframe 21 are provided with a planar slide bearing 25 for carrying the load caused by the mass of the machine roll 6. The sliding bearing achieves good load bearing capacity in this application. The planar plain bearing 25 preferably comprises a plurality of separate bearing elements 35. The planar plain bearing 25 may be permanently lubricated or lubricated by a feed lubricant.

5

Further, in the embodiment shown in Fig. 1, the actuator 30 for causing a y-directional movement of the subframe 23 may comprise an eccentric, lever mechanism or other similar reciprocating arrangement.

Fig. 2 shows an embodiment of the invention in the y direction, i.e. in the transverse direction of the fiber web 5. In the figure, a reel 1 for continuously wounding a fibrous web W around a reel roll 5 into a machine reel 6 comprises: a reel cylinder 10 for forming a nip N with a reel 11 for reeling 11, a support frame 23 arranged to support the reel 6 and the spool 10-la 5 is movable in the x direction, wherein in the reel 1 the fibrous web W is reel-wound on the machine roll 6. Further, the carrier body 23 is arranged movable in the y-direction relative to the body 20 to provide an oscillating motion for the purpose of illustrating 15, a thin dashed line also includes a fully rolled machine reel just before replacement.

The rotary-bearing winding cylinder 10 may be stationary or movable relative to the body 20. Conventionally, the winding cylinders have been mostly fixed in place, but a considerable number of roller roller structures with movable winding cylinders have also been disclosed. This structural aspect has no significant effect on the present invention.

Fig. 2 shows an elongated guide 26x by means of which the support body 23 is movable in the x direction. Here, too, if desired, the technique applied to provide transverse motion can be used, wherein the z-directional load is maintained by a planar sliding bearing and the control function is carried by the load-bearing device.

ih 0 ^ As will be apparent to one skilled in the art, the invention and its embodiments are not limited to the exemplary embodiments described above. The expressions in the claims describing the existence of? Features, for example, '' reel includes a winding cylinder ', are open so that the disclosure of features does not exclude the existence of other features not set forth in the independent or implicit Claims. .

CM

6

Reference numerals shown in the figures: 1 retractor 10 winding cylinder 5 20 frame 21 subframe 23 support frame 25 planar slide bearing 26 guide 10 30 actuator 5 reel roll 51 reel sheath 52 reel shaft 58 bearing clutch 15 59 clutch 6 machine reel 8 actuation 80 watt

C \ J

δ

(M

i tn o i

(M

X

I do not

CL

δ co

CD

O) o o

(M

Claims (10)

A reeling device (1) for rolling a fiber web (W) continuously around a tambour roller (5) in the form of a machine reel (6), the reeling device (1) comprising: - a reeling cylinder (10) for forming a nip (N) together with the machine roller (6) to be rolled, 15. a support body (23), arranged to support the machine roller (6) and also with the aid of each support body (23) a tambour roller (5) which functions as a core the machine web (6) can be moved in the x-direction, whereby the fiber web (W) can be unscrewed oscillatingly to a machine reel (6) in the retractor (1), characterized in that - the support body (23) is arranged to be movable in The y direction in the relative to the body (20) to provide an oscillating path of movement for the tambour roller (5) and an operation (8) has been integrated into the support body (23) to produce a torque in the machine roller (6). s 25 uS Winding device (1) according to claim 1, characterized in that the supporting bodies (23) on the operating side and the front side (23) of the winding device are interconnected to synchronize movements in the x-direction and y-direction mechanically or otherwise. Smiles electrically. T-30 CD Roll-up device (1) according to claim 1, characterized in that the rotatable cylinder (10), which is stored bearable (10), is stationary or movable in relation to the C-frame (20). A reeling device according to claim 1, characterized in that a guiding line (26y) is arranged between the support frame (23) and the auxiliary body (21) or the support body (23) and the body (20) to control the movement of the running rail (23). direction. 5 Roll-up device according to claim 1, characterized in that the support body (23) is connected to an auxiliary body (21), wherein a flat sliding bearing (21) is provided between the auxiliary body (21) and the body (20) or the support body (21). 25) to support the load caused by the mass of the machine roller (6). Roll-up device according to claim 1, characterized in that the driving means (30) which generates movement of the auxiliary body (23) in the y-direction comprise an eccentric, a lever mechanism or some other arrangement which causes a corresponding pendulum movement. Roll-up device according to claim 5, characterized in that the flat sliding bearing (25) comprises several separate bearing elements. Roll-up device according to claim 4, characterized in that the guiding line (26y, 26x) is arranged not to carry a load in the z-direction. Winding device according to claim 5, characterized in that the flat sliding bearing (25) is permanently lubricated. 25 Roll-up device according to claim 5, characterized in that the flat ™ sliding bearing (25) is lubricated with a lubricant which is fed. o (M 10 O) (N X cc CL CO CO CO σ> o o CM