DE112008003197T5 - Apparatus for a fiber web production or handling line - Google Patents

Abstract

A fiber web production and processing line apparatus (10) comprising a frame assembly (30) having machine components (20, 40, 45, 55, 60, 67) adapted to handle the fibrous web disposed in association with the frame assembly, characterized in that at least two machine components (60, 67) of the device are supported by the frame assembly (30) or a part thereof which connects them, the frame assembly comprising a member (32) made of a material , which has better damping properties than monolithic steel.

Description

The The present invention relates to a device for a Production and treatment line of a fiber web according to the Preamble of claim 1.

The Production and treatment line for a fiber web points an arrangement by a number of devices or Components formed in the processing line on each other are arranged following. A typical production and treatment line has a headbox, a wire section and a press section and a subsequent dryer section and a rewinder. The production and treatment line can further, for example have a calender. The production and treatment line also includes at least one slitter for forming customer rolls and at least one roll wrapping device.

by virtue of higher goals in terms of efficiency are the requirements for the devices for the production of and treatment line very high. Due to the increase of machine speed Among other things, it increases the effect of the vibration properties. Typically, steel is used in the production of the devices and in some cases a different material is used. However, a relatively low vibration damping is one the properties of steel. The machine components (eg support drum, Press roll, lock the cores), which in the treatment the web in connection with the devices (eg slitter-winder) Participants, therefore, become impulses of other machine components exposed.

A Solution in which the machine components in two separate Frame parts are arranged, is known from the prior art. On this way, the vibration in the machine direction becomes frequent caused while the machine is running. The Attempts to minimize this include stiffening the frame by connecting the separate frame parts by means of a extending in the machine direction steel strut, wherein the combination of two Rah menteilen rigid than a frame part is. A disadvantage of such a strut, however, is that they Transfer vibrations from one frame part to another can. In addition, it is often difficult to have such a strut in the machine direction, and it increases the Material consumption.

The US 4691488 describes the use of concrete as a filler of the hollow steel frame of the machine component. In the solution described there, the concrete acts as an internal vibration damper in the frame. The solution described there is in practice only very slowly to produce, because the frame itself must first be made, then the frame must be filled with concrete and finally there is a delay while the concrete hardens.

A calender, a so-called multi-nip calender, as the calender of the type shown in this solution is called is US 6578473 as an example of an apparatus for the production and treatment line of fibrous material. Such a calender is formed by two subframes, which are arranged at a distance from each other. The calender also has an upper and a lower roller mounted respectively in upper and lower bearings, the bearings being supported by the sub-frames so that the upper bearings are fixedly received and the lower bearings are received so as to be vertical are adjustable. The multi-roll calender also has a plurality of stacked intermediate rolls disposed between the upper and lower rolls. Together with the upper and lower rolls, the intermediate rolls form calendering nips when they have been splitted together. Each intermediate roller is connected by means of a special lever arm to the subframe which has a drive means arranged in connection therewith. Such a solution allows the compensation of the mass of the intermediate rolls, whereby the nip load is constant.

at calenders known from the prior art become additional to the subframe a massive support structure with considerable Requires rigidity, making the device a very big unit becomes. Typically, the subframe is an auxiliary structure made of steel, which also contains vibrations very inefficiently dampens, eliminating the need to Help structure to perform very massive, further increased becomes.

The publication FI117902 describes a solution of a foundation for a paper or board machine or the like for receiving the component or device of the paper or board machine. This foundation solution has a frame in connection with which the elements, such as rollers, of the component or device are held. The frame of the component or device is held by the building by means of a solid, solid floor, so that the floor is held opposite the foundation of the building by means of a movable connection. However, this publication focuses only on the foundation solution of the component or device, wherein in the solution based on adverse or unknown soil conditions in ei However, problems that are sufficiently stable in support can be eliminated, or at least minimized, both dynamically and statically.

From the devices of the production and treatment line of a fibrous web is the slitter one, which on the one hand a sensitive or delicate method, such as cutting and distributing the component sheets with the cutting part, and the on the other hand performs a method which objects that generate pulses, such as support drums, Locks for winding tubes and so on. The sensitive one Structure that performs the sensitive method is on the slitter through the cutting blades with their support structures and the distribution roller with her in front of the rollers of the component tracks arranged stringers and other guides of the web formed, in particular arranged before cutting guide roller.

there is a holistic control or control of vibrations of particular importance. The cutting itself is particularly problematic because the exact contact surface of the cutting device should not be exposed to vibration on forming pairs of blades, so that the cutting is successful.

The The object of the present invention is to provide a device for a production or treatment line according to the The preamble of claim 1, wherein the device among other things with better vibration characteristics than with from the Prior art known devices of a production or Treatment line is equipped.

These Task is by means of a production and / or treatment line a fibrous web mainly achieved in that at least two Machine components of the device by a frame assembly or supports a connecting part or are held, wherein the frame assembly comprises a part which made of a material which has better damping properties as a monolithic steel.

These Device produces the effect that the vibrations and / or pulses the various machine components of the device not on others Machine components transferred to a disturbing extent become.

at the device are preferably at least one pulse generating and at least one sensitive part through the frame assembly or a part of it, which has a part made of a material which has better damping properties than monolithic ones Steel has, supported or held. So that's it sensitive part of the excitation generating part in one Vibration sense essentially separated.

The Effect of the invention can be further improved by optimizing the support of each machine component on the frame assembly as far as the stiffness of the damping is affected, and z. B. such that the held by the frame Machine components have fastening devices, which Vibration damping characteristics selected for each machine component , wherein the machine component by means of the fastening means attached to the frame.

According to one Embodiment, the device is a slitter and the at least one excitation-producing machine component, which is supported by the part is in connection with the roll to be wound up on the take-up part and the sensitive part held by the part is at least one of the following: a cutting part, a spreader roll, a Separator of the component tracks. Preferably, the cutting part becomes by an elastic material on the frame assembly or her Part held.

According to one Embodiment of the invention also relates to the invention a calender arrangement in the production line of a fibrous web, wherein the calender is a multi-roll calender comprising a roll stack having rollers which are in nip connection with each other may be arranged, wherein of the rollers at least the Intermediate rolls by means of role-specific locking arrangements held on a support frame, which provided for it is to be attached to a separate support structure, wherein the supporting frame is provided at the building foundation to be attached.

According to one Embodiment, the support frame is provided for to be attached directly to the building foundation. Preferably the support frame is intended to be on a concrete foundation to be attached.

According to one Embodiment, the support frame has a fastening part on, by means of which the support frame removably attached to the concrete foundation attachable.

In another embodiment, the calender assembly includes an upper roller at the first end of the roller stack and a lower roller at the second end, the upper roller being supported by the support frame. According to ei In another embodiment, the calender assembly includes an upper roll at the first end of the roll stack and a lower roll at the second end, the upper roll being supported by the building foundation.

Preferably replaced the support frame a part of the mold, in which the concrete is poured.

According to one another embodiment, the directly on the building foundations attachable functional machine components the intermediate rolls of the calender and their holding and adjustment structures.

In In the concept of the present application, the term "functional Machine components "such machine components of the calender arrangement and their holding and adjustment structures associated with the treatment and / or Guiding the fiber web in the calender arrangement are connected.

The other additional characterizing features of the invention become clear from the attached claims.

In In the context of this application, the term "supporting drum" means in addition to the actual roll also other types of carrying devices, such as a combination of rollers and a band or bands.

through The invention achieves a number of advantages. through The invention makes it possible to machine components, which have a high tendency to vibrate from other machine components isolate the device. By using a material, which better damping properties than monolithic Having steel, the mass of the frame assembly on a simple Way in particular to improve the vibration behavior be increased, even in such a way that only the requirements in terms the strength are exceeded. additionally may be the attachment of each machine component on the frame assembly with respect to the stiffness of the damping be optimized.

following The invention and its operation are with reference to the attached Schematic drawings described in which

1 schematically shows a device for a production and treatment line of a fiber web according to an embodiment in a side view,

2 the device according to 1 in a plan view,

3 an exemplary representation of the frequency response of a machine component,

4 shows a calender arrangement according to an embodiment of the invention,

5 shows a calender arrangement according to a further embodiment of the invention,

6 shows a calender arrangement according to a further embodiment of the invention,

7 shows the drive device of the intermediate rolls according to the invention,

8th the parts of the drive device of 7 in more detail shows

9 the mounting of the upper and / or lower roller of the calender arrangement according to an embodiment of the invention,

10 shows a calender arrangement according to a further embodiment of the invention,

11 the replacement device of the lower roller of the calender arrangement shows in a side view,

12 the replacement device of 11 in a front view,

13 shows the lift table structure in a front view, which is designed so that it can be used in conjunction with the calender arrangement, and

14 a plan view of the lift table structure of 13 is.

Although the invention is described below with reference to FIGS 1 and 2 with respect to a slitter with a support drum winder, the invention is particularly well suited for use with a center winder-winder.

The 1 and 2 are schematic representations of a device 10 a production and treatment line for a fiber web according to an embodiment of the invention, wherein the device is here a slitter. Among the devices of the production line of the fibrous web, the slitter is particularly one in which a delicate process is simultaneously performed on one side, the slitting being performed by the cutting part On the other hand, there is a process associated with large masses, namely the winding of web component rolls 56 , 1 shows the slitter from the side and 2 shows the slitter from above, wherein the treatment side (TS) and the drive side (DS) are cut in different planes. The slitter has an unwinding part 15 , a cutting part 20 and a winding part 25 which, in this embodiment, is a carrier roll with a press roll 40 and support drums 45 is executed. The at the unwinding 15 previously produced machine roll 16 is unwound and by means of guide rollers 65 through the cutting part 20 to the winding part 25 directed. The press roll 40 is through the press roll bar 43 held, which at its ends to guides 50 is mounted, which extend substantially perpendicular to the longitudinal axis of the support rollers. Accordingly, when the winding part 25 is used, the so-called winding tube locking device 55 also at the guides 50 attached, which extend substantially perpendicular to the longitudinal axis of the support rollers. 1 shows the cutting blades 61 with its supporting structure 60 on the winder as an example of a delicate arrangement 66 , as well as the divider or separator 68 the component tracks with its stringers.

The slitter has a frame assembly 430 which has a part made of a material having damping properties better than a structure made of monolithic steel. In this embodiment, the part is a part 32 , which is made of steel reinforced concrete. In 1 are the unwinding part 15 and the cutting part 20 the slitter 10 , the press roll bar 43 as well as the winding tube locks 55 through the part 32 supported, which consists of steel reinforced concrete, and thus are the above-mentioned machine components of the slitter 10 connected together by a part which consists of reinforced concrete. The steel reinforced concrete increases the mass of the frame structure by a substantial amount and improves the vibration damping. This results in a substantial reduction in the effect of vibrations between the machine components attached to the frame structure, both by the relatively large mass and by the increase in damping. Thus, the effect of possible vibration from each machine component with another machine component is effectively damped.

The part made of steel reinforced concrete 32 has mounting areas on which the machine components are mounted with their bearing housings, z. B. with respect to their guide rollers 65 , The attachment areas are preferably metallic attachment surfaces which are provided during the casting of the reinforced concrete. Preferably, the method of attachment is such as to enable the alignment of the machine components after their installation. In this embodiment, the cutting part 20 and the actuators, which divide or separate the web, such as. B. rollers 67 , in addition by means of an elastic spacer 70 from the part 32 the frame assembly, which consists of the reinforced concrete, additionally insulated, whereby the cutting part is isolated even more effectively from the vibrations of other machine components. This isolates the sensitive part of vibration and the part that produces pulses, such as For example, the guide roll that guides the web to the spreader roll is installed on the frame member in a manner that dampens the vibrations. The effects of the vibrations and their control can be further enhanced by the fact that the machine components actually include fasteners provided with vibration damping characteristics specifically selected for each machine component, the fasteners attaching the machine components to the reinforced concrete frame. In some cases, z. B. the rollers are attached directly to the concrete frame.

The frame arrangement 30 according to the embodiment of the invention, which in 1 also has a steel part 34 on which the support drums 45 the winding part 25 attached or supported in this embodiment. Thus, in particular, the support drums are in this way 45 effective with respect to vibrations from the cutting part 20 , the press roll bar 43 and the winding tube locks 55 isolated and thus no vibration excitations are transferred in a disadvantageous manner to other machine components of the slitter. According to one embodiment, machine components that have a strong tendency to vibrate are isolated from the other machine components of the device by supporting at least two machine components of the device on a frame assembly or a portion thereof which is a part connecting them which is made of steel reinforced concrete. Thus, the frame is made substantially entirely of steel reinforced concrete and serves as both a main bearing structure and the vibration isolator between the machine components.

In some cases it is preferable to the part 34 the frame on which the support rollers are mounted, in separate parts 34 ' . 34 '' to share, whereby the impulses from the roles are not so good be transferred. Thus, one of the parts 34 ' . 34 '' According to the invention, a frame made of steel reinforced concrete.

The effect of the invention can be further enhanced by optimizing the retention of each machine component on the frame assembly with respect to the stiffness of the damping, e.g. B. in the embodiment of the 1 and 2 manner shown, so that at the attachment to the frame, the cutting part 20 by means of an elastic spacer 70 from the part 32 the frame assembly is isolated. The vibration behavior of the entire apparatus can be better controlled if vibration damping reinforced concrete as the frame, or at least a portion thereof, is first used to isolate the various machine components from one another and then additionally to produce the attachment of each machine component having the desired characteristics , Any attachment of a machine component to the frame can be separately optimized for damping stiffness. In practice, this z. B. mean that the rigidity of the bearing on the frame for the vibration-sensitive crossbeam is such that the relationship between the main excitation frequency and the lowest nominal bending frequency is chosen so that the transmissivity of the vibrations from the frame to the beam sufficiently low or is desired.

2 additionally represents an example of how the part 32 , which is made of material with better vibration damping properties than monolithic steel, such. As with steel reinforced concrete, solid is made as the part made of steel in the prior art. In some applications, the part may 32 a support structure part for the device and an additional mass part for the device, but preferably as a unitary structure. By Tragstruk turteil the part of the frame assembly is meant, which is necessary for reasons of strength, ie the defined according to the sizing principles of conventional engineering structure. In practice, this means that with the device according to the invention, the mass of the frame assembly can be increased in a simple manner, in particular to improve the vibration behavior, more than the situation allows only on the basis of strength reasons, ie exceeds the mass of the frame that which is defined by the sizing principles of traditional engineering, and the mass has been increased so much that the vibration conditions have improved significantly.

3 simulates the vibration of a sensitive or sensitive machine component, such. B. a lower squeegee, the impulse from another machine component, both with a conventional arrangement (solid line) and with an arrangement according to the invention (dashed line). These machine components are connected to each other through the frame. The transition from a conventional steel frame structure to the reinforced concrete structure is shaped so that in a reinforced concrete arrangement the relative attenuation of the frame is 10 times, the nominal frequency drops from 10 Hz to 5 Hz and the mass is doubled compared to the conventional frame structure is increasing. When the pulse of the excitation generating machine component remains the same in the case of the invention (broken line), the amplitudes of the vibration in the resonances are reduced by more than 50 as compared with the arrangement according to a conventional solution (solid line). In the figure, the horizontal axis represents the frequency of vibrations in Hertz and the vertical axis represents the movement per unit of force. The lowest peak represents the nominal frequency of the frame, the second lowest is that of the sensitive machine component, and the third is that of the machine component passing the pulse. The amplitudes of all resonance peaks decrease, especially the peak of the sensitive machine component at the frequency of about 15 Hz.

4 schematically illustrates the calender arrangement 110 an embodiment of the invention. The calender arrangement comprises a stack of rollers 115.1 . 115.2 . 120.1 . 120.2 which can be brought into nip connection with each other. The stack has the so-called upper roller 120.1 and the bottom roller 120.2 and their intermediate rolls 115.1 . 115.2 on. This type of calender is a so-called multi-roll calender. Typically, the upper and lower rolls are so-called deflection roll rolls, and the intermediate rolls are alternately arranged, with a soft surface 115.1 and hard surface 115.2 Tanned rollers. In the in 4 In the illustrated embodiment, the stack is substantially vertical, but it is also possible to arrange the stack at a certain angle.

The calender assembly also has a support frame 130 on. In the embodiment of 4 become the intermediate rolls 115.1 . 115.2 through the support frame 130 over lever arms 125 , ie roll-specific attachment devices held. Each lever arm is over bearings 135 through the support frame 130 rotatably held. Each roller is on the bearing opposite end with a arranged at the other end drive means 140 held on the lever arm, by means of which the position of the roller in the arrangement and their Effect on the treatment of the fiber web can be influenced by adjusting the nip load.

The calender arrangement furthermore has so-called flyer or calculation rollers 116 in conjunction with their intermediate roll up. The fibrous web W is guided so that it passes through successive nips N in the calender arrangement via the flyer roll 116 runs, leaving the web cover on the top rollers 120.1 . 120.2 and the intermediate rolls 115.1 . 115.2 is minimized.

In the embodiment of 4 becomes the upper roller 120.1 held rigid and the lower roller 120.2 is kept adjustable, guided by the guide 145 and held by the loading cylinder 150 , The position of the lower roller 120.2 with respect to the support frame (eg rapid opening of the nips) can be achieved by means of the loading cylinder 145 can also be used to affect the nip load of the rolls in a manner known per se. The upper roller 120.1 is in this embodiment also by the concrete frame 160 held over the base plate. The actual detailed method of attaching the machine components to the concrete casting may vary from case to case.

In the in 4 illustrated embodiment, the support frame 130 the calender arrangement 110 intended, directly at the building foundation 160 , which is designed as a concrete foundation to be installed. In this embodiment, the support frame is with a gripping device 165 equipped on at least one side thereof, wherein the gripping device remains in the cast concrete.

The Calender assembly is installed so that the operational support frame positioned in its desired location and the concrete is poured. When the concrete solidifies, it locks the support frame in his position. The support frame partially acts as a part of Casting mold, which is the actual mold in one replaced certain area. The support frame fixing the casting can the actual casting of the foundation his or her support frame may be considered an afterthought attached to the concrete foundation. The other parts of the calender arrangement are installed on the support frame after the concrete has already hardened is.

In the embodiment of 4 is also the support structure 146 the leadership 145 , which belongs to the support of the lower roller, to the concrete casting of the building foundation 160 , ie the concrete foundation of the building, attached.

5 shows a further embodiment. It is essentially the same as in the 4 illustrated embodiment and therefore a corresponding numbering of the reference numerals in 5 used. The following description mainly addresses the differences between the embodiment of FIG 5 and the embodiment of 4 one. In the embodiment of 5 has the support frame 130 a fastening part 131 on, over which of the support frame 130 detachably attached to the concrete foundation. Thus, only the attachment part 131 needed if the building foundation 160 is poured, and attaching the support frame by means of z. B. a bolt connection 132 can be done later. The profile of the fastening part can, for. B. U-shaped, whereby the casting is in the same to a mounting surface 133 can extend.

The embodiment of 5 also shows that the top roller 120.1 also on the support frame 130 can be appropriate.

6 shows a calender arrangement according to a third embodiment of the invention. Here is the support frame 130 be executed so that he is the space 134 that is, it may be formed completely hollow or in its entirety, so that the concrete casting of the frame structure 160 may extend substantially within the subframe.

Consequently The calender arrangement can be very stiff and with good vibration damping properties be executed. In addition, the amount of needed Steel considerably lower than known from the prior art Solutions.

The 7 and 8th put the drive device 170 the intermediate rolls 115.1 . 115.2 According to the invention. The drive device has a first toothed belt wheel 172 , which with the intermediate roller 115.1 . 115.2 and over a belt loop with the clamping disc 174 connected, and a second toothed belt wheel 176 on which with the drive motor 178 connected is. The drive device 170 is held by the support structures of the intermediate roller (not shown).

In the drive device of the intermediate roller 115.1 . 115.2 is a variety of parallel timing belts 180 provided instead of a wide belt. Preferably, two toothed belts are arranged side by side, so that there is a space or a gap between them 182 is formed, which has a width which corresponds approximately to the height of the tooth of the belt. Thus, the width of the wheel extends across the width of two toothed belts, and preferably, they have a unitary structure, thereby contributing to the structure of the tooth grooves in the region the belt is identical. The gap 182 which has a width approximately equal to the height of the tooth is centered in the longitudinal direction of the wheels 172 . 176 is arranged and is preferably made by machining, wherein the depth of the gap is at least as deep as the tooth gap, preferably slightly deeper. The groove or the gap 182 acts as an exit path for the air when the tooth 181 of the toothed belt in the gap 173 occurs when the device is running. One of the pulleys has projections or flanges 184 on the outside, which prevent the straps 180 move. The clamping disc 174 is with an extension or a lead 185 provided, the width of the gap 182 corresponds to and extends to the circumference of the shell of the wheel, in wesentli Chen centrally in its longitudinal direction, so that in use the projection 185 between the belts 180 is arranged. The lead 185 separates the straps 180 and thus keeps the gap 182 the wheels for the discharge of air freely.

Thus, an exit path for air remains on both sides of the toothed belt. The outlet area of the air expelled from the tooth groove increases considerably with respect to the entire width of the toothed belt. The speed of the air flow also decreases considerably, which also reduces the noise. In the invention, it is possible to use the respective wheels 172 . 176 provided with an extension that keeps the timing belt separate, but it is technically easier, the clamping disc 174 provided with a flange, because it is a smooth wheel.

9 shows the holder of the upper and / or lower roller 120.1 . 120.2 the calender arrangement 110 according to the invention. Preferably, the holder of the upper roller has a fixed to the support frame 130 welded fork made of cast steel 190 on, at which the camps 192 the upper roller 120.1 are attached. The holder of the lower roller has one of the fork 190 appropriate structure, which also fixed to the support frame 130 can be connected.

she However, alternatively, by means of a bolt connection solvable be connected.

The attachment surfaces 195 of the bearing are conical surfaces, which allow the attachment even self-locking execute, with due regard to the safety in the workplace, by means of a suitable dimensioning of the angle. The angle should be α <8 °. The new design allows a faster and safer way of changing the top and bottom rollers of the calender assembly, a simpler design due to the reduced number of components in the design, and a stiffer construction with respect to the position of the top roller, and a faster and more accurate Assembly (positioning both in the width direction of the web and vertically).

10 also shows a further embodiment of a calender according to the invention, by means of which the calender arrangement can be driven both in Mehrwalzen- and also in the partial nip-gap mode. The solution of 10 has a subframe 1100 in which a lower roller 120.2 ', wherein the roller is preferably a deflection-compensated roller, and a first 115.1 'and a second intermediate roll 115.2 'are appropriate. The nip angle β of the lower roll 120.2 'and the first and second inter mediate roll 115.1 ' 115.2 ' deviates about 14-22 ° from the vertical.

The subframe 1100 is through the support frame 130 of the calender or held by the building foundation, which it, as in 10 is shown with z. B. a sliding guide 145 or a lever mechanism that allows a guided vertical movement of the subframe. The other intermediate rolls 115.1 . 115.2 be through the support frame 130 kept the calender arrangement.

The first 115.1 ' and the second 115.2 ' Intermediate roll are through the subframe 1100 held by a sliding guide or a lever mechanism. The lower roller 120.2 'is through the subframe 1100 held firmly and the roller is preferably a sheath-loaded deflection compensating roll. The discharge roller 116.1 is through another intermediate roller 115.2 held and thus it moves with this roller. The discharge roller 116.2 is through the subframe 1100 held.

The arrangement of 10 can be powered, for. B. such that in qualities which require more surface treatment, such. B. glossy grades, the entire set of rolls is used during calendering and all nips are closed, whereby the web W in the nip between the upper roller 120.1 and the top intermediate roll 115.1 is directed. When the nips are closed, they move on the subframe 1100 attached intermediate rolls 115.1 ' 115.2 ' towards the lower roller 120.2 'and the bottom nips are closed. The next nips in the set of rolls are made by means of a loading cylinder 150 closed, which entrains the intermediate rollers and closes the entire set of rollers when ascending. During the closing of the set of rolls, the intermediate rolls may typically be up to about 95% of their own weight be made easier. The dimensioning of the intermediate roller 115.2 'contemplates the bending forces generated by the asymmetric load. The rolls of similar design (hard and soft surface rolls) in the assembly may be interchangeable.

The rapid opening of the set of rollers may be performed so that the line load is first withdrawn and the nips open in a manner known per se from top to bottom. The intermediate rolls 115.1 ' 115.2 ' can get away from the bottom roller 120.1 are moved in the subframe, as soon as a gap between the upper, held by the subframe intermediate roller 115.2 'and the through the support frame 130 held, bottom intermediate roll 115.1 is formed when the subframe moves down. Also, the profiles of the upper and lower rollers (deflection compensating rollers) can be moved in opposite directions during a quick opening.

For example, when matt grades are calendered into the lower part of the set of rolls, the part-nip drive becomes by shifting the first intermediate roll 115.1 ', which is held by the subframe, and the second intermediate roller 115.2 'towards the lower roller 120.2 'done, whereby the nips are closed. This causes the web W 'in the direction of the device between the upper intermediate roll held by the subframe 115.2 'and that of the support frame 130 held lowest intermediate roll 115.1 directed, as in 10 represented by a dashed line. The first intermediate roller 115.1 'and the second intermediate roller are equipped with their own drive means (not shown).

The line load is determined by means of the reinforcing edge or the profile of the lower roller 120.2 ' educated. The angle β with respect to the vertical between the rollers 120.2 ' 115.1 ' . 115.2 ' The subframe helps to avoid zero load areas of the bearings and low line loads of 5-30 N / m can be calendered. During fast opening, the intermediate rollers can 115.1 ' 115.2 ' be moved away from the lower roller. The lower roller 120.2 In addition, it can be moved away from the direction of the load.

By means of the solution must be the holder of the lower roller 120.2 'The calender arrangement or the intermediate rolls 115.1 ' 115.2 ' do not change to different positions to avoid a zero load when changing the calendering from glossy qualities to dull grades. This prevents that the change in quality with the calender is faster than the mechanical positioning is prevented. Because of the profile-loaded, deflection-compensated roller, adjusting the line load is more accurate than adjusting the line load of a fixed-profile roller moving on a guide mechanism. This also makes it possible to change the lowermost bend-compensated roller directly to a roof crane without a hook or a separate exchange fork.

The 11 and 12 show a replacement device 1200 the lower roller 120.1 the calender arrangement in a front and side view. The exchange device 1200 is outside the scope of the calender arrangement 110 arranged to go along one on the lower plate 1210 of the frame machined surface. This solution avoids the use of separate rails, their assembly and the use of loose pieces as the web passes through the basement. In addition, with a double frame machine model, the same replacement device can be used to replace both lower rollers. The exchange device is steered so that it comes into contact with the lower roll and the lower roll becomes on the exchange device 1200 held and moved away from the calender. The roller 120.2 is at a distance from the calender supported by the exchange device at which it by means of a crane 1220 from the exchange device 1200 can be lifted.

13 shows a lift table structure 1300 for assisting in replacing the rollers of the calender assembly as a front view and in 14 as a top view. The lift table structure shown in the figures 1300 is a three-piece construction, which is a central part 1310 ie the central corridor 1310 with end baskets arranged at the ends thereof 1320 , having. The arrangement also has vertical frame parts 1330 on which the end baskets 1320 by means of guide devices 1340 , such as guide rails, are arranged. The assembly also includes a lift mechanism (not shown) for raising the lift table structure and / or the end baskets up and down the guide rail. The final baskets 1320 are with a locking device 1350 provided by means of which the central part 1310 at the end baskets 1320 can be brought and locked, reducing the central part 1310 can be left or positioned on the ground level and the end baskets can be driven up and down on the end portion of the set of rollers of the calender assembly. As a result, there is no need at any time to lift the roller over the central area of the lift table, and yet the lift table can be used to monitor the conditions of the set of rollers in the normal range paint operation by locking the central part to be used with the end baskets.

It It should be noted that above are just a few of the most preferred embodiments are described. Thus, it is obvious that the invention not limited to the above embodiments but in many ways within the one enclosed by the Claims defined scope can be applied. It should be noted in particular that the invention also on the winding machine or the rewinder of the fiber web machine can be applied, where to put in certain situations can meet the corresponding problem. In conjunction with various Embodiments described may also in conjunction with other embodiments within the range of the invention are used and / or different arrangements can be made from those described Features combined, if so desired and technical is feasible.

The Solution according to the invention can also be applied to a variety of paper grades, the most important of which are discussed below.

Paper and paperboard are available in a wide variety of ways and can be divided into two grades according to their basis weight: single layer paper having a basis weight of 25-300 g / m ² and multi-ply board making paper Rough weight of 150-600 g / m ² have. It should be noted that the distinction between paper and paperboard is flexible because paperboard qualities with the lowest weights are lighter than the heaviest paper grades. Generally speaking, paper is used for printing and cardboard for packaging.

The Descriptions below are examples of fiber webs currently being used applied values and can be considerable Deviations from the given values occur.

On mechanical pulp based, d. H. Wood-based printing papers, include newspaper, uncoated magazine and coated magazine paper.

Newsprint is either entirely composed of mechanical pulp or may have some bleached softwood pulp (0-15%) and / or recycled fibers to replace part of the mechanical pulp. Common values for newsprint can probably be given as follows: basis weight 40-48.8 g / m ² , ash content (SCALA-P 5: 63) 0-20%, PPS S10 roughness (SCALA-P 76-95) 3, 0-4.5 μm, Bendtsen roughness (SCALA-P21: 67) 100-200 ml / min, tightness 600-750 kg / m ³ , brightness ( ISO 2470: 1999 ) 57-63% and opacity ( ISO 2470: 1998 ) 90-96%.

Uncoated magazine paper (SC = supercalendered) typically has 50-70% mechanical pulp, 10-25% bleached softwood pulp and 15-30% fillers. Typical values for calendered SC paper (including, for example, SC-C, SCB and SC-A / A +) include basis weights of 40-60 g / m ² , ash content (SCALA-P 5: 63) 0-35% , Hunter gloss (SIO (DIS 8254/1) <20-50%, PPS S10 roughness (SCALA-P 76: 95) 1.0-2.5 μm, tightness 700-1250 kg / m ³ , brightness ( ISO 2470: 1999 ) 62-70% and opacity ( ISO 2470: 1998 ) 90-95%.

Coated magazine paper (LWC = Coated Lightweight) includes 40-60% mechanical pulp, 25-40% bleached softwood pulp and 20-35% fill and coat colors. General values for LWC paper can be assumed as follows: basis weight 40-70 g / m ² , Hunter gloss 50-65%, PPS S10 roughness 0.8-1.5 μm (offset) and 0.6-1 , 0 μm (Roto), tightness 1100-1250 kg / m ³ , brightness 70-75% and opacity 89-94%.

General values for MFC paper (machined, coated) can be considered as follows: basis weight 50-70%, Hunter gloss 25-70%, PPS S10 roughness 2.2-2.8 μm, tightness 900-950 kg / m ³ , brightness 70-75% and opacity 91-95%.

General values for FCO (offset film coated) paper can be considered as follows: basis weight 40-70 g / m ² , Hunter gloss 45-55%, PPS S10 roughness 1.5-2.0 μm, tightness 1000-1050 kg / m ³ , brightness 70-75% and opacity 91-95%.

General values for MWC paper (coated, medium weight) can be assumed as follows: basis weight 70-90 g / m ² , Hunter gloss 65-75%, PPS S10 roughness 0.6-1.0 μm, tightness 1150 -1250 kg / m ³ , brightness 70-75% and opacity 89-94%.

HWC (heavy weight, coated) has a basis weight of 100-135 g / m ² and it can even be coated more than twice.

Out Pulp produced, wood-free printing papers or fine papers uncoated and coated pulp-based printing papers, in which the proportion of mechanical pulp is less than 10%.

Uncoated pulp based Printing papers (WFU) include bleached birchwood pulp at 55-80%, bleached softwood pulp at 0-30% and fillers at 10-30%. The values for WFU are very unstable: ream weight 50-90 g / m ² (up to 240 g / m ² ), Bendtsen roughness 250-400 ml / min, brightness 86-92% and opacity 83-98%.

For the coated pulp-based printing papers (WFC), the amounts of the coating vary greatly according to the requirements and the purpose of use. The following values are typical of once and twice coated pulp-based printing paper: once coated, basis weight 90 g / m ² , Hunter gloss 65-80%, PPS S10 roughness 0.75-2.5 μm, brightness 80 -88% and opacity 91-94%, twice coated, basis weight 130 g / m ² , Hunter gloss 70-80%, PPS S10 roughness 0.65-0.95 μm, brightness 83-90% and opacity 95- 97%.

Carrier paper has a basis weight within the range of 25-150 g / m ² .

Other Paper contains z. B. Kraft sack paper, paper tissues and wallpapers.

• – Wellpappe, welche eine Decklage und ein Fluting aufweist.
• – Graupappe, welche zur Herstellung von Schachteln und Kisten verwendet wird. Graupappen beinhalten z. B. Flüssigkeitsverpackungspappen (FBB = Faltgraupappe, WLC = Faltschachtelkartons, SBS = SBS-Pappe bzw. Zellstoffpappe).
• – Graphikpappen, welche zur Herstellung von z. B. Karten, Ordnern, Mappen, Schachteln, Einbänden usw. verwendet werden.
• – Tapeten.

Papermaking uses chemical pulp, mechanical pulp and / or recycled pulp. Cardboard may according to their application z. B. be divided into the following main groups:

• - Corrugated board, which has a cover layer and a Fluting.
• - Gray board, which is used to make boxes and boxes. Gray boards contain z. B. Liquid packaging boards (FBB = Faltgraupappe, WLC = Faltschachtelkartons, SBS = SBS cardboard or pulp board).
• - Graphic cardboard, which for the production of z. As cards, folders, folders, boxes, bindings, etc. are used.
• - wallpapers.

Abstract device for a fiber web production or handling line

The present invention relates to a device ( 10 ) for a production and treatment line of a fibrous web which has a frame arrangement ( 30 ) and machine components ( 20 . 40 . 45 . 55 . 60 . 67 ) formed to treat the fibrous web and disposed in connection with the frame assembly. At least two machine components ( 60 . 67 ) of the device are characterized by the frame arrangement ( 30 ) or a part of it that connects, supports and holds, and has a part ( 32 ), which consists of a material which has better damping properties than monolithic steel.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• US 4691488 [0005]
• US 6578473 [0006]
• - FI 117902 [0008]

Cited non-patent literature

• - ISO 2470: 1999 [0083]
• - ISO 2470: 1998 [0083]
• - ISO 2470: 1999 [0084]
• - ISO 2470: 1998 [0084]

Claims (10)

Contraption ( 10 ) for a production and treatment line of a fibrous web which has a frame arrangement ( 30 ) with machine components ( 20 . 40 . 45 . 55 . 60 . 67 ), which are designed to treat the fiber web arranged in connection with the frame arrangement, characterized in that at least two machine components ( 60 . 67 ) of the device through the frame assembly ( 30 ) or a part thereof which connects them, the frame arrangement being a part ( 32 ), which consists of a material which has better damping properties than monolithic steel. Device according to claim 1, characterized in that in the device ( 10 ) at least one excitation generating part ( 40 ) and at least one sensitive part ( 60 ) are supported by the frame assembly or a part thereof which is a part ( 32 ), which is made of a material having better damping properties than monolithic steel. Device according to claim 1 or 2, characterized in that the frame arrangement of the device or a part thereof, which is a part ( 32 ), which has better damping properties than monolithic steel, is larger in mass than a part made of steel in accordance with conventional engineering dimensional principles used for monolithic steel. Apparatus according to claim 3, characterized in that the device additionally comprises an additional mass portion ( 32 ) for improving the vibration situation. Device according to one of the preceding claims, characterized in that the device is a slitter, and that the at least one excitation generating machine component ( 40 ), which through the part ( 32 ), in connection with the roll to be wound up on the take-up part, and that the sensitive part supported by the part is one of the following: a cutting part ( 20 ), a spreader roll ( 67 ) or a separator of the component tracks ( 68 ). Contraption ( 10 ) for a fiber web production or treatment line according to any one of the preceding claims, characterized in that the device is a slitter for a fiber web, and that the sensitive part of the slitter, the cutting part ( 20 ), which the cutting blades ( 61 ) with its holding structures. Contraption ( 10 ) for a fiber web production or treatment line according to any one of the preceding claims, characterized in that the device is a slitter for a fiber web, and that the excitation producing part of the slitter a press roll ( 40 ). Contraption ( 10 ) for a fiber web production or treatment line according to any one of the preceding claims, characterized in that that of the device or a part ( 32 ) thereof supported machine components have fastening means which have vibration damping characteristics, which are specifically selected for the machine component, by which the machine components on the frame assembly or a part ( 32 ) of which are appropriate. Contraption ( 10 ) for a fiber web production or treatment line according to one of the preceding claims, characterized in that the cutting part ( 20 ), the wide-stretching roller ( 67 ) and / or the separator of the component webs ( 68 ) via an elastic material ( 70 ) through the frame assembly or its part ( 32 ) is supported. Contraption ( 10 ) for a fiber web production or treatment line according to any one of the preceding claims, characterized in that the material which has better damping properties than monolithic steel is reinforced concrete.