JP4224027B2 - Web calendar processing method and calendar apparatus - Google Patents

Description

  The present invention relates to a calendar processing method for processing a web by heating and pressurizing in a calendar processing apparatus, and a calendar apparatus having a stack of calendar rolls for calendaring a web such as paper or board. The present invention also relates to a method for enhancing the performance of an existing calendar device.

  Patent Document 1 discloses that the current calendar device can be changed to the latest calendar with a calendar roll relief device by using an auxiliary frame. The intermediate roll is rotatably attached to an auxiliary frame so as to be rotatable, and this auxiliary frame is attached to a vertical portion of a support frame of a conventional calendar. Since an auxiliary frame is provided, all the equipment necessary for modification can be incorporated into this frame and carry the vertical part of the conventional frame, i.e. the vertical axis, which is attached before remanufacturing. It is designed so that the device can also be incorporated in a vertical part that is designed to act as a guide for the bearing housing of the roll, which only needs to be changed when attaching the auxiliary frame. This auxiliary frame can also be designed as a profile that partially tightens around the conventional guide of the frame.

  Patent Document 2 discloses that two calendar stacks are provided in one calendar device, and a sheet feeding device is provided between the two stacks. The stack is driven by a common bottom roll of one of the two stacks.

  Patent Document 3 discloses that a calendar device including two calendar roll stacks arranged in the vertical direction is provided. Each roll stack operates separately. Both roll stacks may be placed in a common machine frame to simplify the overall design of the calendar. Further, the two roll stacks may be centered together to facilitate support of the upper roll stack. Preferably, each roll stack includes five rolls, and the machine frame or support may correspond to the frame of a known 12 roll calender device or the like. In many examples and applications when processing the web, the body calendar device is intended to replace the traditional 12-roll calendar. The machine frame may be used so that the current machine frame can be retrofitted to the conventional calendar and the calendar described in the text can be implemented.

  Patent Document 4 discloses a machine-mounted super calender device that includes a hard and soft calender roll and can be placed at the discharge end of a papermaking machine of the type that forms a soft nip with each other. The calendar rolls are arranged in groups of at least three rolls, and each calendar roll group consists of three calendar rolls, i.e. a central hard calender roll and two external soft calender rolls. The groups of the calendar rolls are separated from each other, and the calendar rolls of one group are not in contact with the nip portion of the calendar rolls of the other groups either directly or indirectly. At least a majority of the soft calender rolls can be replaced during operation of the device without significant interruption of operation.

  U.S. Patent No. 6,057,031 discloses a method and system for controlling a stack of calendar rolls that are arranged one above the other, with adjacent rolls in the stack in nip contact. This document particularly describes a high-speed opening device and a calendar hydraulic circuit.

  Patent Document 6 discloses two calendar stacks in which hard and soft coating rolls are arranged so that the upper roll is a hard roll in the first stack and the upper roll is a soft roll in the second stack. It is disclosed. The diameter of the calendar roll in one stack is different from the diameter of the other rolls. Within the second stack, the rolls are similar to the first stack, but the direction of operation is different.

  Patent Document 7 discloses two stacks of calendar rolls arranged in a V-shape opening upward or downward, and in a place where the distance from one stack to another stack is relatively short, Are directed from one stack to another.

  Patent Document 8 discloses at least two stacks of calender rolls spaced from each other and mounted on a single frame. Each calendering unit includes two rigid rolls that define each nip set with at least one intermediate roll and an intermediate roll on a substantially opposite diameter side. An intermediate roll of the calendar processing unit may be composed of a soft roll, and the calendar processing unit may be composed of a super calender with a set of nip portions as the soft nip portion.

  U.S. Patent No. 6,057,051 discloses a method for calendering a web with a multi-nip calendering device or a super calendering device, wherein the method is formed by rolls arranged in two or more stacks of rolls. The web passes through the calendering nip. The web is fed alternately from the corresponding calendering nip in each stack of rolls to the calendering nip in the next stack of rolls. That is, the web passes from the first nip in the first stack of rolls to the first nip of the second stack of rolls, to the second nip in the second stack of rolls, and in the second stack of rolls. From the second nip of the roll to a second nip in the first stack of rolls and processed after passing through the second nip in the first stack of rolls.

  Patent Document 10 discloses two stacks of calendar rolls inside a hood for maintaining a calendar processing environment at a predetermined temperature and humidity.

International Publication 02/06584 Pamphlet U.S. Pat. No. 4,040,377 US Pat. No. 5,911,174 U.S. Pat. No. 4,375,188 US Pat. No. 5,806,415 Danish Patent No. 19940897 European Patent Application No. 1092805 US Pat. No. 4,332,191 US Pat. No. 6,0034,340 US Pat. No. 5,651,863

  In general, the calendar device is designed within a specific range of processing parameters based on the test operation result. In most cases, a test run is performed on the basis of already manufactured paper, a calendar specification is designed, and a form of a calendar processing apparatus is designed. This design includes the number of nips, the diameter of the calender roll, the maximum and minimum linear loads in the nip, the operating speed, the temperature of the heating roll, the wetting device, and the like.

  Current calendar devices have the disadvantage of being difficult to correct for some reason, for example if the reference paper changes due to an increase in reprocessed fiber parts in the stock. It is an object of the present invention to provide an improved method and apparatus for improving the versatility of a calendar apparatus.

  For example, the calendar device may include a second stack (33) in addition to the first stack (15), and each of the stacks (15, 33) may include one or more nip portions (0). By using the nip (0) of the first stack and / or the second stack independently or with the nip (0) of either the first stack (15) or the second stack (33); By using all or part of the nip portion (0) of one stack (33, 15), the above problem can be solved.

Normally, calendar devices are designed for only one processing mode, so there is only one way to feed the web from the unwound state to the stack or stacks and then to the reel winding state via the machine. Only. In many cases, this is sufficient, but as time elapses, the calendar device becomes obsolete and changes occur in the material being processed, so it cannot be applied to new work as it is.
Calendar devices have a lifetime of over 25 years, and many calendar devices are designed with a very narrow range of process parameters.
The present invention provides a method that can use the original calendar device and can be modified to meet the latest requirements.

In the present invention, several different new processing modes can be created as follows. That means
(1) First, the web is guided through all the nips of the first stack, and then guided through all the nips of the second stack.
(2) First, the web is guided through a part of the nip of the first stack, and then guided to a part of the nip of the second stack.
(3) First, the web is guided through a part of the nip of the first stack, then guided to all or part of the nip of the second stack, and then the remaining nip of the first stack. Partly through the part.
(4) First, the web is guided through a part of the nip of the second stack, and then guided to all or part of the nip of the first stack.
(5) First, the web is guided through a nip part of the second stack, and then to all or part of the nip part of the first stack, and then the remaining part of the second stack Guide through the nip.

  All of these different processing modes allow the optimal calendaring process to be performed on the web, allowing the design of a calendar device that can handle even when web characteristics change significantly from the original. . That is, by expanding the scale of possible process parameters, it is possible to produce a new grade of web with the calendar device.

  At least one of the two stacks is designed to provide an overall web processing device that meets certain parameters. In that case, only this stack may be used as usual without incorporating other stacks or parts into the web processing process.

  The calendar device (13) has a second stack (33) in addition to the first stack (15), and each of the stacks (15, 33) has one or more nip portions (0). And independently using the nip (0) of the first stack and / or the second stack, and the nip (0) of either the first stack (15) or the second stack (33); The object of the present invention is achieved by making it possible to selectively use the nip portion (0) of all or part of one stack (33, 15).

  Further, the calendar device may be composed of a first stack and a second stack, the second stack may be disposed on the second frame, and the second frame may be detachably connected to the first frame. Thereby, the preparation work of a calendar apparatus can be suppressed to the minimum, and it can be comprised so that a change is possible.

  The stack has extremely high manufacturing requirements and must be manufactured so that all parts are accurately mounted and that the high load of the high-speed operating machine does not cause a very high stress level in the mechanical structure. Also, since a very long life is required, the allowable stress must be kept very low due to dynamic loading. In the calendar apparatus according to the present invention, the second frame is connected to the first frame so as to be adjustable.

  When using a high-speed operating web, it is susceptible to all types of misalignment errors in the roll in contact with the operating web. The operability of the calender changes with this alignment, which is independent of the alignment and is one of the important factors in determining how much production is possible with the calender. ing. On the other hand, when changing from the conventional stack calendar device to the calendar device according to the present invention, the first frame can be adjusted so that it can be adjusted independently in the X, Y, or Z direction. A second frame is provided at a proper position.

In this specification, the calendar device means an overall calendar device including all parts related to the machine including, for example, a frame, a roll, a control system, a web handling device and an auxiliary device corresponding to the web polishing process. To do.
The calender roll herein comprises a flat metal surface or a surface made to be covered with a polymer or other flexible, elastic or elastic material, the calender roll being two calender rolls Used to process the web in the nip formed between the two.
As used herein, stack refers to a stack of at least two calender rolls positioned next to each other that form a nip between the calender rolls. Within the nip, the stack can be opened so that the distance between the calendar roll surfaces is greater than the thickness of the web.
The processing mode in this specification means a method of supplying a web so as to be in a state where it is wound from a state where it is not wound through a calendar device. In this text, “selectable” or “selectable” means partial or all functions by adjusting or changing the auxiliary device such as a guide roll and a dampening device without adding mechanical or automatic change requiring labor. Can be used.

  According to the present invention, it is easy to change the design of a calendar device and a calendar processing method.

  The above and further solutions to the problems of the present invention are described below, along with the features and advantages of the following embodiments.

  FIG. 1 shows a calendar apparatus according to an embodiment of the present invention. The calender rolls 1 to 11 of the first calender device are arranged on top of each roll so as to be rotatable, and the whole roll forms a first stack 15. Moreover, the 2nd stack 33 which consists of rotation calendar rolls 34-40 is arrange | positioned.

The nip portion 0 to be used can be selected from the first stack 15 and / or the second stack 33, the nip portion (0) of the first stack and / or the second stack can be used independently, or the first stack ( 15) or the nip portion (0) of the second stack (33) and the nip portion (0) of all or part of the other stack (33, 15) can be selected. Since it is configured, it is possible to greatly change the method of guiding the web through the calendar device 13.

  The web W passes only through the first stack (shown in FIG. 1), from the entire first stack to the entire second stack (shown in FIG. 2), first into the second stack, and then a part of the first stack. And then into the second stack, then to the rest of the first stack (FIG. 3), else the entire second stack, or one of either stack You may guide through the nip part of a part. Also, as shown in FIG. 4, various numbers of calendar rolls can be used.

  The second stack 33 is disposed on the second frame 42 separated via the lever 62, and the second frame 42 is detachably attached to the first frame 17. The second frame has at least two frame parts, one on the inclined side and another frame part on the drive side of the machine and further comprises a suitable number of transverse brackets. The first and second frame interconnections 56 are designed to require only a minimal amount of interconnection members relative to the first frame, while the interconnections between the first and second frames are mechanical. Must be firmly fixed to the. The second frame shall have all the features of the first frame. That is, several guide rolls and tail threading devices may also be attached to the second frame. The interconnection 56 between the first and second frames is designed so that the second frame can be positioned very accurately with respect to the first frame 17. Interconnection allows adjustment in X (horizontal, machine length direction), Y (horizontal, machine transverse direction) and Z (vertical) directions, and more preferably other coordinates depending on the adjustment in one direction One of the positions will not change. The positioning accuracy needs to be about 1/100 mm. When the second frame 42 is attached to the first frame 17, a bolt joint or similar configuration is preferred.

  The fixed first frame 17 is attached to the foundation of the building. The first frame is fabricated from steel, cast iron or other suitable material and forms a sturdy foundation for the calendar device. The first frame is formed from at least two parts, i.e. one part is arranged on the inclined side of the paper or board making machine and the other part is arranged on the driving side of the machine. Is configured. Between these two parts, a plurality of crossing brackets for mechanically connecting the two parts of the first frame 17 are provided. The cross bracket may include an electric cable or hydraulic piping communicating between the side surfaces.

  Calender rolls 1-11 are either covered with a soft coating (conventionally cotton or polymer coating) or have a flat hard metal outer surface. The diameter of the calendar roll is selected according to desired process conditions, but is generally about 300 mm to 1200 mm. Calendar rolls at different locations may have different internal structures. That is, a heating device or a distortion compensation structure may be provided. In the first stack 15, the calender rolls 1, 3, 5, 7, 8 and 10 have a soft coating, and the rolls 2, 4, 6, 9 and 11 have a hard coating. Also, different types of roll arrangements are possible.

  The calendar rolls in the second stack are the same as those in the first stack 15, or different types of calendar rolls. The second stack 33 includes two or more calendar rolls, and the number of calendar rolls in the second stack varies depending on the frame structure and the characteristics of the web to be processed in the second stack. The diameter of the calendar roll in the second stack is the same as the diameter of the calendar roll in the first stack or a different calendar roll diameter.

  The calendar rolls 1 to 11 of the first stack are attached to the first frame through the lever 60 so as to be movable. The calendar rolls are pressed against each other by a force generating element such as a hydraulic cylinder. The contact point or line between the two calendar rolls for processing the web W is the nip portion 0. The lever includes a stand for a calendar roll bearing housing, and the lever is attached to the first frame by a bearing device. The first frame includes several pivot joints or slide bearing devices with a lever 60 attached. The distance between the rotating joints is approximately the diameter of the calendar roll. Generally, in this apparatus, a lubricated bronze bearing is used. In the linear plain bearing type, a spindle nut or other similar device is used to move the calendar rolls 1 to 11 vertically. In the embodiment of FIG. 4, the first stack 15 is also the latest type provided with a lever 62 like the second stack 33.

  The rewinding part 19 is arrange | positioned at the upper part of the calendar apparatus. This is the first element part in the process direction of the calendar device 13. The paper or board web W to be processed is stored on a web roll 23. The web roll is wound on a reel spool or core 21 depending on the machine configuration. The reel spool or the core is composed of a shaft and a bearing housing separated from the shaft. The reel spool is attached to the drive unit 25 through a coupling device together with the web roll. The drive is connected to the control system. The reel spool is supported by a reel frame together with the web roll, and this frame carries the entire weight of the web roll and the reel spool. The rewinding unit is provided with a splice device. The splicing device comprises a lifting device, a transport device, a joining device with a tape construction and a full width cutting device.

  The first measuring device 27 includes a measuring head and a transverse direction guiding device for the measuring head. This device measures different properties of the web, such as moisture, ash content, thickness, gloss, etc. before the web is processed. A web tension measuring device is also included in this part. The tension measurement is based on the weight of the induction roll or the air pressure generated by the moving web. The second measuring device 29 is the same as the first measuring device 27, but measures the characteristics of the web W after the calendar processing step.

  The tail threading device 58 is arranged for each free drawing direction of the web. The tail threading device has a rope structure, a belt structure, a pressure release or pressure structure, or a combination thereof. It comprises several guiding devices that guide the web through a calendar from the unwinding position to the winding position.

  The guide roll 44 is attached to the calendar frame, and is attached to a portion where the free drawer between the guide rolls is relatively short, for example, when the web width is 10 m, about half the width of the web. A special kind of induction roll, called a draw roll, is arranged in a suitable position, for example in front of the first nip 0 of the first stack 15. A flyer roll 54 is used between the two nips 0 to rotate the web moving from one nip to the next nip 0.

  The wetting device 31 wets either side of the web and is controlled in the transverse direction of the web to add different humidity modes to the web. The wetting device 31 is attached to the first frame 17 or the second frame 42, or comprises the frame of the device itself. The wetting device 31 can be placed between one nip 0 and the next nip 0 in any stack (shown in FIG. 4) or between the stacks 15 and 33.

  Several guide rolls 44, a tail threading device 58 and a wetting device 31 are arranged between the first stack 15 and the second stack 33.

  The winding unit 46 rewinds the calendar processed web to the roll 23. Since this roll is rewound by the rewinding portion 19, it is wound on the similar reel spool 21 or winding core. The main parts of the winding unit are a frame, a pressure roll 48, a drive unit 25, a reel changing device 50, and a reel spool storage unit 52 for an empty reel spool. The winding unit is provided with an oscillation device.

  In the following, the function of the structure described above and the advantages obtained by this method are described.

  Typically, a calendar processing device is designed for a specific range of process parameters and the method of operating the device. In a calendar stack, the web is processed by the effects of heat and compression. There are several factors that affect compression. That is, the diameter of the calender roll, the elastic modulus in the nip, the compressibility and what kind of shearing force are generated, the smoothness of the surface, and the like. The results of the calendering process are determined by the properties of the web itself, humidity, pulp and fiber, binder, ingredients and compression factors.

By selectively using a second stack or part of the device stack, several different processing modes of the web can be used in the calendar device. As the possibility increases in this manner, the grade fluctuation range is remarkably improved, and not only the conventional grade can be manufactured but also the new grade can be manufactured. A processing mode can be created so that the web passes between the first and second stacks. For example, the following processing modes are possible.
(1) Rewinding → first whole stack → winding, this is the original SC-mode (FIG. 1).
(2) Rewinding → second entire stack → winding, this is the so-called OptiLoad mode.
(3) Rewinding → The entire first stack → The entire second stack → Rewinding (FIG. 2)
(4) Rewind → Part of first stack (2 nip part) → Whole second stack → Part of first stack (5 nip part) Winding (FIG. 3)
(5) Rewinding → Second stack → First stack → Winding (6) Rewinding → Part of second stack (1 nip portion) → Whole first stack → Rewinding (7) Rewinding → 5 nip part of one stack → 5 nip part of another stack → winding (8) rewinding → 3 nip part of one stack → 5 nip part of another stack → winding (9) rewinding → one 5 nip portion of the stack of the other stack → 3 nip portion of the other stack → winding (10) rewinding → 2 nip portion of one stack → 1 nip portion of the other stack → winding (11) rewinding → one stack 2 nip part → 4 nip part of other stack → winding (Figure 4)

  At least the second stack 33 is the latest calendar type having a plurality of nip portions. One preferred embodiment is described in the aforementioned US Pat. No. 5,806,415. This preferably comprises one or more nips, for example six nips (7 calender rolls). This can include a calendar roll weight removal system to control each nip portion of the second stack independently. The linear load can be adjusted so that the load in each nip is the same, for example, from 100 kN / m to 425 kN / m. The calendar rolls in the second stack may have a drive, and all calendar rolls may have a drive of the roll itself. The state-of-the-art calendar roll used in this second stack enables long-term operation, provides high processing speed, and requires little maintenance. Primarily this is due to the improved state of the art polymer coating, which provides many advantages over conventional molds.

  The first stack 15 is a conventional type super calendar. Of course, the latest type having a plurality of nip portions can be used. Calendar rolls 1, 3, 5, 7, 8, and 10 are dense cotton rolls, and calendar rolls 2, 4, 6, 9, and 11 are so-called chill cast iron rolls. The roll diameter is about 560 to 1000 mm and the compression or linear load varies from 120 kN / m at the first nip to 325 kN / m at the bottom nip. That is, the nip load between the calender rolls 1 and 2 is 120 kN / m, and the nip load between the calender rolls 10 and 11 is 325 kN / m. In this type of configuration, a specific grade of supercalendered paper (SC-paper) can be produced. The range in which the first calendar stack can be controlled is limited, and the process parameters can be changed only within the range of the original design values. Some rolls do not need to be driven. Usually, the lowermost roll 11 is driven, and this roll is also provided with a distortion compensation element.

  Since the plurality of nip portions 0 can be selectively increased, the linear load in the first stack 15 can be reduced also by the second stack 33. Since the load on the calender roll is reduced and the thermal effect of the nip portion is reduced in the deformed state, this enables high-speed operation. In addition, since the linear load is reduced, the tendency of stack vibration or burring to occur is reduced. In addition, the linear load can be increased at the beginning of the calendaring process and the linear load can be decreased at the end of the calendaring process to reduce the volume loss during the process.

  Since the second frame is installed, all auxiliary devices can be attached in an efficient manner. Although it is not necessary to change the first frame 17 in a wide range, the second frame 42 can be selectively attached. The key to installation is to create a sturdy connection that can be precisely adjusted. Within the calender device, the web must operate smoothly, and as with all guide rolls, stack and calender roll alignment is an important factor here.

  Between these stack changes, a wetting device 31 can be inserted to affect the results of the calendaring process and prevent unnecessary drying of the web. These alternate processing modes allow for the creation of a new grade web overall array instead of the traditional limited embodiment.

  The function of the rewinding part 19 is to rewind the web roll and maintain an appropriate tension in the web. The drive unit brakes the rewinding of the roll by measuring the tension. Adjust the tension appropriately so that the web does not flutter and is processed smoothly. The splicing device joins the web from the almost completely unwound roll to the new web exiting the new web roll. As a result, the calendar can be operated continuously, and the labor of the operator can be reduced.

  The purpose of the calendering process is to change the physical properties of the treated web, such as gloss, thickness, surface smoothness, etc. By using the measuring device before and after the calendar stack or stacks, these characteristics can be monitored online during the process.

  The function of the guide roll 44 is to guide the web into the calendar stack so that the operability of the overall calendar device is as good as possible. Here, the operability means that the web operates smoothly so as not to obstruct the process. The stretch roll stretches the web so that it does not overlap just before the web enters the calendar stack.

  Theoretically, the calendar device 13 could be activated during maintenance work by other stacks, but this is not recommended for safety reasons. When the tool is inserted through the calendar nip portion, the coating of the calendar roll may be significantly damaged, and a piece of the coating on the roll may hit the maintenance worker and cause a serious injury.

  The following examples illustrate the advantages obtained by the present invention.

  Calendar processing equipment has been producing SC-grade paper for 10 years. The base paper that has been used contains about 10% reprocessed fibers, and the proportion of reprocessed paper in the stock has increased to 35% because of the availability of different stock materials.

  In a calendar processing apparatus constituted only by the first stack, a sufficient calendar processing result cannot be obtained for a new metal type web. The web properties measured are gloss, smoothness, volume, etc. and can degrade. By selectively introducing the latest calendar type second stack, it is possible to select an optimum processing mode for a new reference sheet.

  For example, it can be selected as follows. A second stack of three nips operating at a load of 250 kN / m at each nip, comprising a hard roll on the top side of the web, and 3 between the calender rolls 8, 9, 10 and 11 The web is processed in nips, subjected to a load of 250 kN / m to 300 kN / m, and provided with a hard roll on the wire side of the web. When selected according to the present invention, the gloss of the web is the same as before the raw material is changed, but the volume is better than before.

FIG. 1 schematically shows a processing mode in a calendar apparatus according to an embodiment and a current calendar. FIG. 2 schematically illustrates another option of a processing mode according to one embodiment. FIG. 3 schematically illustrates yet another option of processing mode according to one embodiment. FIG. 4 schematically illustrates yet another option of processing mode according to one embodiment.

Explanation of symbols

W Web (paper or board)
0 Nip part 1-11 Calender roll 13 of 1st stack 13 Calender apparatus 15 1st stack 17 1st frame 19 Rewinding part 21 Reel spool 23 Web roll 25 Drive part 27 1st measuring apparatus 29 2nd measuring apparatus 31 Wetting Device 33 Second stack 34 to 40 Second stack calendar roll 42 Second frame 44 Guide roll 48 Winding portion 48 Pressure roll 50 Reel changing device 52 Reel spool storage portion 54 Flyer roll 56 Interconnecting portion 58 Tail threading device 60 First Lever 62 in one stack Lever in second stack

Claims (14)

A calendar processing method for processing a web (W) by heating and pressurizing in a calendar device (13),
The calender device comprises a first stack (15) having calender rolls (1-11) forming one or more nips (0), the first stack (15) being on a first frame (17). Placed in
And further comprising a second stack (33) having calendar rolls (34-40) forming one or more nips (0), the second stack (33) being disposed on the second frame (42),
The second frame (42) is attached to the first frame (17) and either by using the first stack and / or the nip (0) of the second stack independently, or by the first stack (15) or the second stack. A calendering method performed by using any nip portion (0) of the stack (33) and all or part of the nip portion (0) of the other stack (33, 15).   The web (W) is first guided through all nips (0) of the first stack (15) and then guided through all nips (0) of the second stack (33). The method of claim 1 wherein:   The web (W) is first guided through a part of the nip (0) of the first stack (15), and then all or part of the nip (0) of the second stack (33). The method according to claim 1, wherein the method is guided through the method.   The web (W) is first guided through a part of the nip (0) of the first stack and then through all or part of the nip (0) of the second stack (33). 2. Method according to claim 1, characterized in that the guiding is then guided through the remaining nip (0) of the first stack (15).   The web (W) is first guided through a part of the nip (0) of the second stack (33), and then all or part of the nip (0) of the first stack (15). The method according to claim 1, wherein the method is guided through the method.   The web (W) is first guided through a part of the nip (0) of the second stack (33), and then all or part of the nip (0) of the first stack (15). 2. The method according to claim 1, characterized in that it is guided through the remaining nip (0) of the second stack (33). A calendering device (13) for heating and compressing and processing a web (W), comprising:
The calender device comprises a first stack (15) having calender rolls (1-11) forming one or more nips (0), the first stack (15) being on a first frame (17). Placed in
And further comprising a second stack (33) having calendar rolls (34-40) forming one or more nips (0), the second stack (33) being disposed on the second frame (42),
The second frame (42) is attached to the first frame (17) and either by using the first stack and / or the nip (0) of the second stack independently, or by the first stack (15) or the second stack. A calendar device configured to be able to select one nip portion (0) of the stack (33) and all or a part of the nip portion (0) of the other stack (33, 15).   The calendar device according to claim 7, characterized in that the second frame (42) is detachably and adjustablely connectable to the first frame (17).   9. The second frame (42) is adjustable at a position relative to the first frame (17) so that it can be adjusted independently in the X, Y or Z direction. Calendar device.   The web (W) is first guided through the nip (0) of the first stack (15) and then guided through the nip (0) of the second stack (33). The calendar device according to claim 7.   The web (W) is first guided through a part of the nip (0) of the first stack (15), and then all or part of the nip (0) of the second stack (33). The calendar apparatus according to claim 7, wherein the calendar apparatus is guided through a calendar.   The web (W) is first guided through a part of the nip (0) of the first stack (15), and then all or part of the nip (0) of the second stack (33). 8. A calender device according to claim 7, characterized in that it is guided through the remaining nip (0) of the first stack (15).   The web (W) is first guided through a part of the nip (0) of the second stack (33), and then all or part of the nip (0) of the first stack (15). The calendar apparatus according to claim 7, wherein the calendar apparatus is guided through a calendar.   The web (W) is first guided through a part of the nip (0) of the second stack (33), and then all or part of the nip (0) of the first stack (15). The calender device according to claim 7, characterized in that it is guided through the second nip (0) of the second stack (33).

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