• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a slitter (10) for a production line and a treatment line of a fibrous web, which comprises a frame arrangement (30) with machine components (20, 40, 45, 55, 60, 67), which are used for the treatment in connection with the frame arrangement (FIG. 30) arranged fiber web, wherein in the slitter (10) at least one excitation generating machine component (40) and at least one vibration sensitive part (60) by the frame assembly (30) or a part thereof are supported or held, wherein at least two Machine components (60, 67) of the winder are supported by the frame assembly (30) or a part thereof that connects them, the frame assembly comprising a member (32) made of a material having better cushioning properties than monolithic Steel, wherein the at least one excitation generating machine component (40), which by the part (32) below and wherein the vibration-sensitive member (60) supported by the member is one of: a cutting part (20), a spreader roll (67), or a separator of the component sheets (68).
    公开号:AT12522U1
    申请号:TGM8107/2011U
    申请日:2008-12-04
    公开日:2012-07-15
    发明作者:Marko Jorkama；Kenneth Aekerlund；Jorma Haag；Juha Linja；Mika Mussalo；Hannu Pullinen；Pasi Kakkonen；Markku Kojo
    申请人:Metso Paper Inc；
    IPC主号:
    专利说明:

    Austrian Patent Office AT12 522 U1 2012-07-15
    description
    DEVICE FOR A FIBERGLASS PRODUCTION OR HANDLING LINE
    The present invention relates to a device for a production and treatment line of a fibrous web according to claim 1.
    The fiber web production and processing line has an assembly formed by a number of devices sequentially arranged in the processing line. 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 may further include, for example, a calender. The production and treatment line also has at least one slitter for forming customer rolls and at least one roll wrapping device.
    Due to higher goals in terms of efficiency, the requirements for the devices for the production and treatment line are very high. Due to the increase in machine speed, among other things, the effect of the vibration characteristics increases. Typically, steel is used in the production of the devices and in some cases another material is used. However, a relatively low vibration damping is one of the properties of steel. The machine components (eg, backup drum, press roll, lock of the cores) that participate in the treatment of the web in conjunction with the devices (eg, slitter winder) are therefore subject to pulses from other machine components.
    A solution in which the machine components are arranged in two separate frame parts, is known from the prior art. In this way, the vibration in the machine direction is often caused while the machine is running. Attempts to minimize this include stiffening the frame by connecting the separate frame members by means of a steel strut extending in the machine direction, the combination of two frame members being more rigid than a frame member. However, a disadvantage with such a strut is that it can transmit vibrations from one frame part to another. In addition, it is often difficult to arrange such a strut in the machine direction, and it increases the material consumption.
    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 described in 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 finned 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 1/24 Austrian Patent Office AT12 522U1 2012-07-15.
    In known from the prior art calenders in addition to the subframe a massive support structure is required with considerable rigidity, whereby the device is a very large unit. Typically, the subframe is an auxiliary structure made of steel, which also very inefficiently dampens vibrations, further increasing the need to make the auxiliary structure very massive.
    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 the problems related to adverse or unknown soil conditions in a sufficiently stable support can be eliminated, or at least minimized, both dynamically and statically.
    WO 2005/080676 A2 and WO 2006/084955 A1 describe the use of concrete for the frame structure. EP 0 972 880 A2 mentions a concrete foundation.
    In US 4 183 271 A a machine frame is shown. US 4 183 271 A relates to a slitter. DE 28 25 898 A1 shows a rotary cutting machine.
    Of the devices of the production and treatment line of a fibrous web, the slitter is one which at the same time on the one hand performs a sensitive or delicate process, such as cutting and distributing the component webs with the cutting part, and on the other hand performs a process which objects which generate pulses, such as support drums, mandrel locks, and so on. The delicate structure that performs the delicate process is formed on the slitter by the cutting blades with their support structures and the distribution roller with its arranged before rolling the component tracks support beams and other guides of the web, in particular arranged before cutting guide roller.
    In this case, a holistic control or control of vibrations is of particular importance. The cutting itself is particularly problematic because the exact contact surface of the blade pair forming the cutting device should not be subjected to vibration in order for the cutting to be successful.
    The object of the present invention is to provide a device for a production or treatment line according to claim 1, in which the device is equipped, inter alia, with better vibration properties than known from the prior art devices of a production or treatment line.
    This object is achieved by means of a production and / or treatment line of a fibrous web mainly characterized in that at least two machine components of the device are supported or held by a frame assembly or the same connecting part, wherein the frame assembly comprises a part which consists of a Material consists, which has better damping properties than monolithic steel.
    This device produces the effect that the vibrations and / or pulses of the various machine components of the device are not transmitted to other machine components to a disturbing extent.
    In the apparatus, preferably at least one pulse generating and at least one sensitive part by the frame assembly or a part thereof, which has a part which consists of a material which has better damping properties than monolithic steel, supported or held. Thus, the sensitive part of the excitation-producing part is substantially separated in a vibration-technical sense.
    The effect of the invention can be further improved by optimizing the support of each machine component to the frame assembly as far as the stiffness of the damping is concerned, e.g. For example, such that the machine components held by the frame have attachment means having vibration damping characteristics selected for each machine component, the machine components being attached to the frame by means of the attachment means.
    According to one embodiment, the device is a slitter and the at least one excitation producing machine component supported by the part is in contact 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 webs. Preferably, the cutting part is held by an elastic material on the frame assembly or its part.
    According to one embodiment of the invention, the invention also relates to a calender arrangement in the production line of a fibrous web, wherein the calender is a Mehrwalzenkalander having a roll stack having rollers which may be arranged in nip with each other, wherein at least the rollers Intermediate roles are held by means of role-specific locking arrangements on a support frame, which is intended to be attached to a separate support structure, wherein the support frame is intended to be attached to the building foundation.
    According to one embodiment, the support frame is intended to be attached directly to the building foundation. Preferably, the support frame is intended to be attached to a concrete foundation.
    According to one embodiment, the support frame has a fixing part, by means of which the support frame is detachably attachable to the concrete foundation.
    According to a further embodiment, the calender arrangement comprises an upper roller at the first end of the roller stack and a lower roller at the second end, the upper roller being held by the support frame. 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, the support frame replaces a part of the mold in which the concrete is poured.
    According to another embodiment, the attachable directly to the building foundations functional machine components on the intermediate rolls of the calender and their holding and Einstellstrukturen.
    In the concept of the present application, the term " functional machine components " such calender assembly machine components and their retention and adjustment structures associated with the treatment and / or management of the fibrous web in the calender assembly.
    The other additional characterizing features of the invention will be apparent from the appended claims.
    In the context of this application, the term " support drum " in addition to the actual roll, other types of carrying devices, such as a combination of rolls and a belt or belts, may also be used.
    By means of the invention a number of advantages are achieved. By means of the invention it is possible to isolate machine components which have a high tendency to vibrate from other machine components of the device. By using a material which has better damping properties than monolithic steel, the mass of the frame assembly can be increased in a simple manner, in particular for improving the vibration behavior, and also in such a way that only the requirements in terms of strength are exceeded. In addition, the mounting of each machine component to the frame assembly may be optimized for damping stiffness.
    The invention and its operation will now be described with reference to the accompanying schematic drawings, in which Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 4 Fig. 6 Fig. 9 shows schematically a device for a production and treatment line of a fiber web according to an embodiment in a side view, Fig. 9; the apparatus of FIG. 1 in a plan view shows an exemplary representation of the frequency characteristic of a machine component, a calender arrangement according to an embodiment of the invention shows a calender arrangement according to another embodiment of the invention shows a calender arrangement according to another embodiment of the invention, the Drive device of the intermediate rolls according to the invention, showing the parts of the drive device of Fig. 7 in more detail, the holder of the upper and / or lower 1 shows a calender arrangement according to a further embodiment of the invention; FIG. 11 shows a side view of the replacement device of the lower roll of the calender arrangement; FIG. 12 shows the replacement device of FIG. 11 is a front view, FIG. 13 is a front elevational view of the lift table structure constructed to be used in conjunction with the calender assembly, and FIG. 14 is a plan view of the lift table structure of FIG is.
    Although the invention will be described below with reference to Figures 1 and 2 with respect to a slitter winder having a support drum winder, the invention is particularly well suited for use with a center winder slitter.
    Figures 1 and 2 are schematic representations of a device 10 of a production and treatment line for a fiber web according to an embodiment of the invention, wherein the device is here a slitter. In particular, among the devices of the production and processing line of the fiber web, the slitter is one in which a sensitive process is performed simultaneously on one side, the slitting being performed by the cutting part, and on the other side, a large mass-related process Fig. 1 shows the roller cutter from the side and Fig. 2 shows the roller cutter 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 designed as a carrying reel roll having a press roll 40 and supporting drums 45. The machine roll 16 previously produced on the unwinding part 15 is unwound and passed through the cutting part 20 to the winding part 25 by means of guide rolls 65. The press roll 40 is held by the press roll bar 43, which is attached at its ends to guides 50 which are substantially perpendicular to the longitudinal axis of the back-up rolls. Accordingly, when the winding member 25 is used, the so-called winding tube locking device 55 is also attached to the guides 50 which are substantially perpendicular to the longitudinal axis of the support rollers. Fig. 1 shows the cutting blades 61 with their support structure 60 on the winder as an example of a sensitive assembly 66, as well as the divider 68 of the component webs with its support beam.
    The slitter comprises a frame assembly 430 having a member made of a material having damping properties that are superior to a structure made of monolithic steel. In this embodiment, the part is a part 32 made of steel reinforced concrete. In Fig. 1, the unwinding part 15 and the cutting part 20 of the slitter 10, the press roll bar 43 and the winding tube locks 55 are supported by the part 32 made of steel reinforced concrete, and thus 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 made of steel reinforced concrete part 32 has mounting areas on which the machine components are mounted with their bearing housings, z. 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, additionally by means of a resilient spacer 70 of the part 32 of the frame assembly, which consists of the reinforced concrete, additionally isolated, whereby the cutting part is isolated 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 assembly 30 according to the embodiment of the invention shown in Fig. 1 also comprises a steel member 34 to which the support drums 45 of the winding member 25 are mounted in this embodiment. Thus, in this way, in particular, the support drums 45 are effectively isolated from the cutting part 20, the press roller bar 43, and the corrugated sleeve locks 55, and thus no vibration excitations are disadvantageously transmitted 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 the main bearing structure and the vibration isolator between the machine components.
    In some cases, it is preferable that the part 34 of the frame to which the carrying rollers are attached are divided into separate parts 34 ', 34 " divide the impulses from the roles not so well on each other. 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 mounting of each machine component to the frame assembly with respect to the damping stiffness, e.g. For example, in the manner shown in the embodiment of Figures 1 and 2, so that at the attachment to the frame, the cutting member 20 is isolated by means of an elastic spacer 70 of the part 32 of the frame assembly. 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.
    Fig. 2 additionally illustrates by way of example how the part 32, which consists of material with better vibration damping properties than monolithic steel, such as. As with steel reinforced concrete, solid is made as the part made of steel in the prior art. In some applications, member 32 may include a support structure portion for the device and an additional mass portion for the device, but preferably as a unitary structure. By support structure part is meant the part of the frame assembly which is necessary for strength reasons, i. H. the structure defined according to the dimensioning principles of conventional engineering. 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, d. H. the mass of the frame exceeds that defined by the sizing principles of traditional engineering, and the mass has been increased so much that the vibration conditions have improved significantly.
    Fig. 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. If the pulse of the excitation generating machine component remains the same in the case of the invention (dashed line), the amplitudes of the vibration in the resonances are reduced by more than 50% compared to 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, in particular the peak of the sensitive machine component at the frequency of approximately 15 Hz. FIG. 4 schematically illustrates the calender arrangement 110 of an embodiment of the invention. The calender arrangement has 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 roll 120.1 and the lower roll 120.2 and their intermediate rolls 115.1, 115.2. 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 rolls alternately arranged with soft surface 115.1 and hard surface 115.2. In the embodiment shown in Fig. 4, the stack is substantially vertical, but it is also possible to arrange the stack at a certain angle.
    The calender assembly also includes a support frame 130. In the embodiment of Fig. 4, the intermediate rollers 115.1, 115.2 through the support frame 130 via lever arms 125, d. H. roll-specific attachment devices held. Each lever arm is rotatably supported by the support frame 130 via bearings 135. Each roller is supported on the opposite end of the bearing with a drive device 140 on the lever arm at the other end, by means of which the position of the roller in the assembly and its effect on the treatment of the fiber web can be influenced by adjusting the nip load.
    The calender assembly further comprises so-called flyer rollers 116 in connection with their intermediate roller. The fibrous web W is guided so that it runs in the calender arrangement through successive nips N via the flyer roller 116, so that the web cover on the upper rolls 120.1, 120.2 and the intermediate rolls 115.1, 115.2 is minimized.
    In the embodiment of Fig. 4, the upper roll 120.1 is held rigid and the lower roll 120.2 is adjustably held guided by the guide 145 and held by the loading cylinder 150. The position of the lower roll 120.2 with respect to the support frame (Fig. eg, rapid opening of the nips) may be adjusted by means of the loading cylinders 145 and may also be used to influence the nip load of the rollers in a manner known per se. The upper roll 120.1 is also held by the concrete frame 160 over the base plate in this embodiment. The actual detailed method of attaching the machine components to the concrete casting may vary from case to case.
    In the embodiment shown in Fig. 4, the support frame 130 of the calender assembly 110 is intended to be attached directly to the building foundation 160, which is designed as a concrete foundation. In this embodiment, the support frame is provided with gripping means 165 on at least one side thereof, the gripping means remaining in the cast concrete.
    The calender assembly is installed so that the operational support frame is positioned at its desired location and the concrete is poured. As the concrete solidifies, it locks the support frame in place. The support frame acts in part as a part of the mold, which replaces the actual shape in a particular area. The casting fixing the support frame may be the actual casting of the foundation, or the support frame may be attached to the concrete foundation as a retrofusion. The other parts of the calender assembly are installed on the support frame after the concrete has already hardened.
    In the embodiment of Fig. 4, the support structure 146 of the guide 145, which is associated with the support of the lower roller, on the concrete casting of the building foundation 160, d. H. of the concrete foundation of the building, attached.
    Fig. 5 shows a further embodiment. It essentially corresponds to the embodiment shown in FIG. 4 and therefore a corresponding numbering of the reference numbers in FIG. 5 is used. The following description mainly addresses the differences between the embodiment of FIG. 5 and the embodiment of FIG. 4. In the embodiment of Fig. 5, the support frame 130 has a fixing part 131 via which the support frame 130 is detachably attached to the concrete foundation. Thus, only the fastening part 131 is required when the building foundation 160 is poured, and attaching the support frame by means of z. B. a bolt connection 132 can be performed later. The profile of the fastening part can, for. B. U-shaped, whereby the casting can extend into the same to a mounting surface 133.
    The embodiment of Fig. 5 also shows that the upper roller 120.1 may also be attached to the support frame 130.
    Fig. 6 shows a calender arrangement according to a third embodiment of the invention. Here, the support frame 130 may be made to have the space 134, i. H. it may be hollow, wholly or in its entirety, so that the concrete casting of the frame structure 160 may extend substantially within the subframe.
    Thus, the calender assembly can be made very rigid and with good vibration damping properties. In addition, the amount of steel needed is significantly less than the solutions known in the art.
    Figures 7 and 8 illustrate the drive device 170 of the intermediate rolls 115.1, 115.2 according to the invention. The drive device has a first toothed belt wheel 172, which is connected to the intermediate roll 115.1, 115.2 and a belt loop with the clamping plate 174, and a second timing pulley 176, which is connected to the drive motor 178. The drive device 170 is held by the support structures of the intermediate roller (not shown).
    In the drive device of the intermediate roll 115.1, 115.2 a plurality of parallel toothed belt 180 is provided instead of a wide belt. Preferably, two toothed belts are arranged side by side such that a space or gap 182 is formed therebetween which has a width approximately equal 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 have a unitary structure whereby the structure of the tooth grooves in the region of both belts is identical. The gap 182 having a width approximately equal to the height of the tooth is located centrally in the longitudinal direction of the wheels 172, 176 and is preferably made by machining, the depth of the gap being at least as deep as the tooth gap, preferably slight is deeper. The groove or gap 182 acts as an exit path for the air when the tooth 181 of the toothed belt enters the gap 173 when the device is running. One of the pulleys has protrusions or flanges 184 on the outside which prevent the belts 180 from shifting. The tension pulley 174 is provided with an extension or protrusion 185 corresponding to the width of the gap 182 and extending to the circumference of the shell of the wheel, substantially centered in its longitudinal direction so that in use the protrusion 185 is interposed between the belts 180 is. The protrusion 185 separates the belts 180 and thus keeps the clearance 182 of the wheels free for the discharge of air.
    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 provide the respective wheels 172, 176 with an extension which keeps the toothed belts separate, but it is technically easier to provide the tensioning pulley 174 with a flange, because it is a smooth wheel.
    FIG. 9 shows the mounting of the upper and / or lower roller 120.1, 120.2 of the calender arrangement 110 according to the invention. Preferably, the support of the upper roller has a fork 190 welded to the support frame 130 and made of cast steel, to which the bearings 192 of the upper roller 120.1 are attached. The bracket of the lower roller has a structure corresponding to the fork 190, which may also be firmly connected to the support frame 130. However, it can alternatively be releasably connected by means of a bolt connection.
    The mounting surfaces 195 of the bearing are conical surfaces, which allow the attachment even self-locking execute, with due regard to the safety at the workplace, by means of a suitable dimensioning of the angle. The angle 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).
    FIG. 10 likewise shows a further embodiment of a calender according to the invention, by means of which the calender arrangement can be driven both in the multi-roll and also in the partial-nip-gap mode. The solution of Figure 10 comprises a subframe 1100, in which a lower roll 120.2 ', wherein the roll is preferably a deflection-compensated roll, and a first 115.1' and a second intermediate roll 115.2 'are mounted. The nip angle β of the lower roll 120.2 'and the first and second intermediate rolls 115.1', 115.2 'deviates approximately 14-22 ° from the vertical.
    The subframe 1100 is held by the support frame 130 of the calender or by the building foundation, which, as shown in Figure 10, with z. B. a sliding guide 145 or a lever mechanism that allow a guided vertical movement of the subframe. The other intermediate rollers 115.1, 115.2 are held by the support frame 130 of the calender arrangement.
    The first 115.1 'and second 115.2' intermediate rolls are held by the subframe 1100 by means of a sliding guide or a lever mechanism. The lower roll 120.2 'is firmly held by the subframe 1100, and the roll is preferably a shell loaded deflection compensating roll. The discharge roller 116.1 is held by a further intermediate roller 115.2 and thus moves with this roller. The discharge roller 116.2 is held by the subframe 1100.
    The arrangement of Figure 10 may be driven, 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 is passed into the nip between the upper roll 120.1 and the uppermost intermediate roll 115.1. When the nips are closed, the intermediate rolls 115.1 ', 115.2' attached to the subframe 1100 move toward the lower roll 120.2 ', and the lowermost nips are closed. The next nips in the set of rolls are closed by means of a loading cylinder 150 which entrains the intermediate rolls and closes the entire set of rolls as they rise. During the closing of the set of rolls, the intermediate rolls can typically be made lighter by up to about 95% of their own weight. The dimensioning of the intermediate roll 115.2 'takes into account 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.T, 115.2 'can be moved away from the lower roll 120.1 in the auxiliary frame as soon as a gap is formed between the upper intermediate roll 115.2' supported by the auxiliary frame and the lowest intermediate roll 115.1 held by the support frame 130 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 is achieved by sliding the first intermediate roll 115.T supported by the sub-frame and the first intermediate roll 115.TM second intermediate roll 115.2 'in the direction of the lower roll 120.2' carried out, whereby the nips are closed. As a result, the web W 'is guided in the direction of the device between the upper intermediate roll 115.2' held by the auxiliary frame and the lowest intermediate roll 115.1 held by the supporting frame 130, as shown in FIG. 10 by a dashed line. The first intermediate roll 115.1 'and the second intermediate roll are provided with their own drive means (not shown).
    The line load is formed by means of the reinforcing edge or profile of the lower roll 120.2 '. The angle β with respect to the vertical between the rollers 120.2 ', 115.T, 115.2' of the subframe helps to avoid zero load areas of the bearings and low line loads of 5-30 N / m can be calendered. During the rapid opening, the intermediate rolls 115.1 ', 115.2' can be moved away from the lower roll. The lower roller 120.2 'may additionally be moved away from the direction of the load.
    By means of the solution, the support of the lower roll 120.2 'of the calender arrangement or the intermediate rolls 115.1', 115.2 'need not be changed to different positions in order to avoid zero load when the calendering is changed from glossy qualities to dull qualities. 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.
    Figures 11 and 12 show a replacement device 1200 of the lower roller 120.1 of the calender arrangement in a front and side view. The replacement device 1200 is located outside the frame of the calender assembly 110 to run along a surface machined on the lower plate 1210 of the frame. 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 exchanger is steered so that it comes in contact with the lower roller and the lower roller is held on the replacement device 1200 and moved away from the calender. The roller 120.2 is spaced from the calender, supported by the replacement device, at which it can be lifted away from the replacement device 1200 by means of a crane 1220.
    Figure 13 shows a lift table structure 1300 for assisting in replacing the rollers of the calender assembly as a front view and in Figure 14 as a plan view. The lifting table structure 1300 shown in the figures is a three-part construction, which has a central part 1310, i. H. the central corridor 1310 with end baskets 1320 disposed at the ends thereof. The assembly also includes vertical frame members 1330 to which the end baskets 1320 are disposed by means of guide means 1340, such as guide rails. 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 end baskets 1320 are provided with a locking device 1350 by means of which the central part 1310 can be attached and locked to the end baskets 1320, whereby the central part 1310 can be left or positioned on the ground level and the end baskets on the end area of the roller set of the calender arrangement can be driven up and down. 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 roller set in normal operation by locking the central portion to the end baskets. It should be noted that only some of the most preferred embodiments are described above. Thus, it is obvious that the invention is not limited to the above embodiments but can be applied in many ways within the scope defined by the appended claims. It should be noted in particular that the invention can also be applied to the winding machine or the rewinder of the fiber web machine, where one can meet a corresponding problem in certain situations. The features described in connection with various embodiments may also be used in conjunction with other embodiments within the scope of the invention and / or different arrangements may be combined from the described features if desired and technically feasible.
    The solution according to the invention can also be applied to a variety of paper qualities, 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: paper having a single ply and a basis weight of 25-300 g / m 2 and multi-ply paperboard, which have a basis weight of 150-600 g / m2. 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 following descriptions are examples of values currently applied to fibrous webs, and significant deviations from the indicated values may occur.
    Based on mechanical pulp, d. H. Wood-containing 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 / m2, ash content (SCAN-P 5: 63) 0-20%, PPS S10 roughness (SCAN-P 76-95) 3.0 -4.5 pm, Bendtsen roughness (SCAN-P21: 67) 100-200 ml / min, tightness 600-750 kg / m3, brightness (ISO 2470: 1999) 57-63% and opacity (ISO 2470: 1998) 90-96%.
    Uncoated magazine paper (SC = supercalendered) usually 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 (SCAN-P 5: 63) 0-35%, Hunter gloss (SIO (DIS 8254/1) <20-50%, PPS S10 roughness (SCAN-P 76:95) 1.0-2.5 pm, tightness 700-1250 kg / m3, 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 / m2, Hunter gloss 50-65%, PPS S10 roughness 0.8-1.5 μm (offset) and 0.6-1, 0 pm (Roto), tightness 1100-1250 kg / m3, brightness 70-75% and opacity 89-94%.
    General values for MFC paper (finished, coated) can be assumed as follows: ream weight 50-70%, Hunter gloss 25-70%, PPS S10 roughness 2.2-2.8 μm, density 900 -950 kg / m3, brightness 70-75% and opacity 91-95%.
    General values for FCO paper (offset film-coated) can be assumed as follows: basis weight 40-70 g / m2, Hunter gloss 45-55%, PPS S10 roughness 1.5-2.0 μm, tightness 1000-1050 kg / m3, brightness 70-75% and opacity 91-95%.
    General values for MWC paper (coated, weight average) can be assumed as follows: ream weight 70-90 g / m2, Hunter gloss 65-75%, AT / A 522 U1 2012-07-15 PPS S10 roughness 0.6-1.0 pm, tightness 1150-1250 kg / m3, brightness 70-75% and opacity 89-94%.
    HWC (heavy weight, coated) has a basis weight of 100-135 g / m 2 and may even be coated more than twice.
    Pulp-made, wood-free printing papers or fine papers include 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 WFU values are very unstable: ream weight 50-90 g / m2 (up to 240 g / m2), Bendtsen roughness 250-400 ml / min, brightness 86-92%, and opacity 83-98%.
    In 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 one and two coated pulp based printing papers: once coated, basis weight 90 g / m2, 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 / m2, 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 includes, for. B. Kraft sack paper, paper tissues and wallpaper.
    Cardboard manufacturing 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 for the production of boxes and boxes.
    Gray boards include e.g. Liquid packaging board (FBB = Faltgraupappe, WLC = Faltschachtelkartons, SBS = SBS cardboard or pulp board).
    [0099] - Graphic cardboard, which for the production of z. Cards, folders, folders,
    Boxes, bindings, etc. are used.
    [00100] Wallpaper. 12/24
    权利要求:
    Claims (6)
    [1]
    Austrian Patent Office AT12 522 U1 2012-07-15 Claims 1. A slitter (10) for a production and treatment line of a fibrous web, comprising a frame assembly (30) with machine components (20, 40, 45, 55, 60, 67) for the treatment of the fiber web arranged in connection with the frame arrangement (30), wherein in the slitter (10) at least one excitation generating machine component (40) and at least one vibration sensitive part (60) through the frame assembly (30) or a part thereof wherein at least two machine components (60, 67) of the slitter are supported by the frame assembly (30) or a part thereof which connects them, the frame assembly having a part (32) made from a material which has better damping properties than monolithic steel, wherein the at least one excitation generating machine component (40) supported by the member (32) in association with the reel to be wound on the reeling member, and wherein the vibration sensitive member (60) supported by the member is one of: a cutting member (20) , a spreader roll (67) or a separator of the component sheets (68).
    [2]
    2. A slitter (10) according to claim 1, characterized in that the vibration sensitive part of the slitter is the cutting part (20), which includes the cutting blades (61) with their support structures.
    [3]
    3. Slitter (10) according to claim 1 or 2, characterized in that the excitation-producing part of the slitter is a press roller (40).
    [4]
    A slitter (10) according to claim 1, 2 or 3, characterized in that the machine components supported by the device or a part (32) thereof comprise fastening means having vibration damping characteristics specifically selected for the machine component which the machine components are attached to the frame assembly or a part (32) thereof.
    [5]
    5. Slitter (10) according to one of claims 1 to 4, characterized in that the cutting part (20), the wide stretching roller (67) and / or the separator of the component tracks (68) via an elastic material (70) through the frame assembly or their part (32) is supported.
    [6]
    6. Slitter (10) according to one of claims 1 to 5, characterized in that the material which has better damping properties than monolithic steel, reinforced concrete. For this 11 sheets drawings 13/24
    类似技术:
    公开号 | 公开日 | 专利标题
    AT12522U1|2012-07-15|DEVICE FOR A FIBERGLASS PRODUCTION OR HANDLING LINE
    EP0854233B1|2003-10-15|Process and apparatus for the damping of vibrations for rolls in contacting rotation
    DE69413202T3|2006-07-20|METHOD FOR CALANIZING A PAPER OR SIMILAR MATERIAL RAIL AND CALENDAR FOR CARRYING OUT THE METHOD
    DE4035986C2|1999-04-01|Calender for online connection to a paper machine
    DE2727083C2|1982-08-05|High-performance calender for smoothing and satinizing a paper web
    DE112005002485T5|2007-12-13|Method in a multi-roll calender, a multi-roll calender and a method for loading a calender roll of a multi-roll calender, and a multi-roll calender
    EP1167256A2|2002-01-02|Method and winding machine for continuously winding a material web
    DE102004020322A1|2005-11-10|Winding machine for the continuous winding of a material web
    DE19832067B4|2005-04-21|Calender for webs of paper or similar material
    DE19832066C2|2000-06-08|Calender for webs of paper or similar material
    DE19735590A1|1998-11-19|Method for continuous winding of paper or cardboard web
    AT506025B1|2013-04-15|METHOD AND DEVICE FOR VIBRATING ROLLING VIBRATIONS
    DE10392825T5|2005-05-25|Method and device for controlling vibrations of a squeegee bar of a coating station
    DE112004000421T5|2006-01-12|Calender and calendering process
    DE19832064C2|2000-09-07|Calender for webs of paper or similar material
    EP1238933B1|2006-03-22|Method and device for continuosly winding a material web
    DE60011293T2|2005-06-09|CALENDAR DEVICE FOR A PAPER MACHINE
    DE29624490U1|2004-04-08|Damping of roller nip oscillation in paper making machine - by applying an active phase displaced counter oscillation directly or indirectly at the roller bearing mountings
    DE112011103576T5|2013-09-12|Roll support arrangement of a fiber web machine and Teilbahnwickler a fiber web roll cutting machine
    DE102005016781B3|2006-03-30|Calender, for finishing a paper web, has an angled roller stack on a column with intermediate rollers on levers suspended freely from the column as weights when in the open setting
    DE4202047C2|1995-08-31|Line force correction method
    DE60014646T2|2006-02-23|HANGING DEVICE FOR A PRESS ROLLER
    DE112006000466T5|2008-02-14|Calenders and methods for calendering fibrous webs, in particular paper or board webs
    DE102016212498A1|2018-01-11|roller
    EP2414264A1|2012-02-08|Winding machine and method for winding a fibrous web onto a winding core
    同族专利:
    公开号 | 公开日
    WO2009071749A2|2009-06-11|
    WO2009071749A3|2009-07-23|
    AT507958A2|2010-09-15|
    DE112008003197T5|2010-10-14|
    CN101888960A|2010-11-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2825898A1|1977-06-17|1979-01-04|Merrill David Martin|ROTARY SHEARING MACHINE|
    US4183271A|1978-03-31|1980-01-15|Merrill David Martin|Rotary web shearing machine|
    US4691488A|1981-08-11|1987-09-08|Oy Wartsila Ab|Method for producing a concrete-filled steel body for suppressing vibrations|
    US3944150A|1974-07-18|1976-03-16|Phylpat, Inc.|Apparatus and a method for slitting and winding elongated sheets of material into rolls|
    DE19832064C2|1998-07-16|2000-09-07|Voith Sulzer Papiertech Patent|Calender for webs of paper or similar material|
    US6578473B1|2001-12-20|2003-06-17|Metso Paper, Inc.|Calender with adjustable roll supports|
    FI6391U1|2004-02-24|2004-09-27|Metso Paper Inc|Support arrangement at a paper machine for a roller collection|
    FI117902B|2005-02-14|2007-04-13|Metso Paper Inc|Basic construction for a paper or cardboard machine or equivalent|
    DE102005024266A1|2005-05-27|2006-11-30|Voith Patent Gmbh|Reel winding device|DE102010000833A1|2010-01-12|2011-07-14|Metso Paper, Inc.|Paper machine for manufacturing fibrous material web, has fluid pressure-driven actuators provided for controlling nip pressure in gap between air pressure devices, and switching valves controlling movement of actuators|
    DE102010041725A1|2010-09-30|2012-04-05|Voith Patent Gmbh|winding process|
    CN103662945A|2013-12-25|2014-03-26|常熟市高新造纸机械有限公司|Rewinding machine|
    CN104044944B|2014-05-27|2016-07-27|洛阳一海包装材料有限公司|A kind of coextrusion film blowing unit wrap-up|
    CN104986598B|2015-07-21|2017-02-01|海宁金永和家纺织造有限公司|Winding device for preventing pressing folds of textile fabric and operating method of winding device|
    CN105364965A|2015-12-03|2016-03-02|太仓市中厚机械有限公司|Mould-closing and cutting machine for positive and negative double-sided paper|
    CN105905648B|2016-04-05|2018-08-24|浙江万利纺织机械有限公司|A kind of batcher yardage roll compression system of pressure adjustable section|
    法律状态:
    2019-02-15| MK07| Expiry|Effective date: 20181231 |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20075878A|FI120367B|2007-12-05|2007-12-05|Arrangement of equipment for a fiber web production and processing line|
    FI20070472U|FI8237U1|2007-12-05|2007-12-05|Smoothing arrangement for a fiber web manufacturing line|
    [返回顶部]