CN203639748U - Device for press polishing fiber web - Google Patents
Device for press polishing fiber web Download PDFInfo
- Publication number
- CN203639748U CN203639748U CN201320848783.XU CN201320848783U CN203639748U CN 203639748 U CN203639748 U CN 203639748U CN 201320848783 U CN201320848783 U CN 201320848783U CN 203639748 U CN203639748 U CN 203639748U
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- CN
- China
- Prior art keywords
- roller
- soft
- width
- fiber web
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000835 fiber Substances 0.000 title claims abstract description 55
- 238000005498 polishing Methods 0.000 title abstract 2
- 239000011248 coating agent Substances 0.000 claims description 47
- 238000000576 coating method Methods 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000003490 calendering Methods 0.000 description 10
- 238000005098 hot rolling Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0233—Soft rolls
Landscapes
- Treatment Of Fiber Materials (AREA)
- Paper (AREA)
Abstract
The utility model relates to a device (1) for press polishing a fiber web (W), and the device (1) comprises rollers (2, 3, 4) forming roller gaps. At least one roller is designed into a heating roller (2), which can be heated and has a hard surface. At least one roller is designed into a soft roller (3), which can not be heated and covered with a soft covering layer (3a). The width of the soft covering layer (3a) of the soft roller (3) is much smaller than that of the soft roller (3), and the width of the soft covering layer (3a) of the soft roller (3) is much greater than the width of the fiber web (W) to be processed, so that the width of the soft covering layer (3a) matches with the width of the fiber web (W).
Description
Technical field
The utility model relates to a kind of for fiber web being carried out to the device of press polish, and this device has multiple rollers that form to each other roller gap.
Background technology
In patent documentation EP0890676U1 or patent documentation DE29521610U1, described the calender with multiple rollers, some of them roller has crust and is heatable, and other rollers have elastic surface coating or soft coating and are not heatable.This heatable roller is commonly called hot-rolling, and the roller with elastic surface coating is commonly called soft roller.
In this calender, the width of the elastic surface coating of roller matches with fiber web to be calendered conventionally, that is, the width of roller elastic surface equates with fiber web to be calendered substantially.Can carry out press polish to the fiber web of different in width by several known calenders.Be in most cases so-called off-line calender at this, that is, this calender is not set directly at after paper machine, moves, and be in most cases positioned at other place but be spatially independent of paper machine.At this, the width size of the elastic surface of roller obviously depends on the widest fiber web that can utilize this calender to implement press polish.Due to so-called soft roller, the roller namely with soft resilient coating does not come in contact with adjacent warm-up mill, because this can damage soft coating, therefore the soft roller in roller group will match with each fiber web that carries out press polish by this calender.In other words, in the time that the width of fiber web to be calendered changes, conventionally need to change soft roller, that is, will use the roller with narrower resilient coating for narrower fiber web.
In this calender with multiple rollers that arrange overlappingly, the roller of linear load in roller group from uppermost roller to lowest part raises gradually, because only have the power of uppermost roller to work on the first roller gap, on lowermost roller gap, be the power of the whole rollers above being positioned in action.In order to guarantee the quality of fiber web, need on uppermost roller gap, just adjust to very high linear load in some cases, to guarantee desired roller clearance pressure, on lowermost roller gap, can correspondingly obtain corresponding higher linear load thus.
If have soft roller in the lower area of roller heap in the situation that of this high linear load, its resilient coating is based on foregoing reason, particularly in the case of to produce width narrower fiber web very little, linear load is also correspondingly distributed on less width, and this causes the linear negative in the roller of the bottom of roller heap to be loaded with very large growth.Final result is to manufacture the fiber web that the fiber web with certain mass, particularly width are very little, because otherwise the resilient coating of soft roller can damage very soon due to too high linear load.
In addition, in such calender, be well known that: realize guiding web by wherein having the heated roller of a roller gap (namely so-called hot-rolling gap) at least by means of manual web guiding and with closed roller gap, at this, calender is with the extremely low speed operation also referred to as " peristaltic velocity ".In some application scenario, particularly in the time producing adhering-resistant paper (Release-Grade-Papier) or wrapping paper, height also referred to as the needed temperature of heatable roller of hot-rolling can make the soft roller with resilient coating come to harm, because the high temperature of hot-rolling has exceeded the hot tolerance of soft roller.But the surface temperature that will reduce hot-rolling in reasonable time is almost impossible, particularly, because the temperature of the heating agent that flows through hot-rolling can be up to 200 ℃, therefore the surface of hot-rolling also has temperature similarly.On the contrary, in the situation that not damaging, can only bear the temperature of approximately 160 ℃ for the material of soft roller resilient coating.
Utility model content
The purpose of this utility model is to propose a kind of device for press polish fiber web, and it can solve above-described problem.
The purpose of this utility model realizes for the device that fiber web is carried out to press polish by a kind of, and it has multiple rollers that form to each other roller gap, wherein, at least one roller is designed to warm-up mill, and it can be heated and have crust; At least one roller is designed to soft roller, it is not heated and has a soft coating, wherein, the width of the soft coating by making at least one soft roller is significantly less than the width of soft roller, and the width that makes the width of the soft coating of at least one soft roller obviously be greater than fiber web to be processed matches the width of described soft coating and the width of fiber web to be processed.
Have larger width by the soft coating that makes at least one soft roller, the linear load that can make to act on soft roller is distributed on larger area, thereby makes to produce less linear load on this area.Can realize thus higher roller clearance pressure and narrower fiber web also can be ensured the quality of products and produce, and this is to there is no so far method to realize.
To change continually soft roller according to another advantage of the technical solution of the utility model, because they can be used in the fiber web of different in width.
In the particularly preferred expansion scheme of one of the present utility model, when in the lower area that the width of soft coating is obviously greater than to the soft roller of width of fiber web to be calendered and is arranged on this device, in fact can make higher linear load particularly appear in the lower area of this device.Another advantage of this embodiment is, the temperature of the roller of the heating in the lower area of this device is in most of the cases lower than the temperature of the roller of the heating in upper area, and the wider coating that is therefore arranged in the soft roller of this device lower area can not be subject to the injury of the roller of the heating contacting with it.
In the preferred expansion scheme of one of the present utility model, the soft coating of at least one soft roller comprises polymeric material.
In a kind of alternative embodiment, the soft coating of at least one soft roller comprises fiber-reinforced material.
According to the utility model, in the process of manufacture fiber web, open the roller gap that is arranged in the region that roll temperature is higher, and the closed roller gap that is arranged in roll temperature lower region, then make fiber web correspondingly imported these open or closed roller gap in.
By opening the roller gap in the region that roll temperature is higher, can prevent the injury on the roller surface of pair roller, and can advance by closed roller gap in the lower region of roll temperature.Can abandon using auxiliary actuator to the roller that forms closed roller gap thus, reduce thus cost and reduced the demand of adjusting and safeguard aspect.
Thus obtained another advantage is: after closeall roller gap, namely, in the time that web finishes to enter calendering device, can more easily control all rollers of this device, because only need to close the roller gap of very few number.In addition,, in the time only need closing little roller gap, can also reduce the risk of web fracture.
Another advantage of the present utility model is: the actual motion of this device, the namely startup of calendaring technology can be carried out in advance.
In the preferred expansion scheme of one of the present utility model, in order to guarantee that also conveying fiber web, by the roller gap of opening, can be carried out driven roller by means of auxiliary actuator in the higher region of roll temperature without any problems.
In order to guarantee to move safely, in the time that fiber web is transported into roller gap on whole width, close the roller gap that is arranged in the region that roll temperature is higher.
Accompanying drawing explanation
Bright embodiment of the present utility model from the principle with reference to the accompanying drawings.Wherein:
Fig. 1 shows according to device of the present utility model with side view;
Fig. 2 schematically shows the roller of device as shown in Figure 1;
Fig. 3 shows the distribution map in each roller gap neutral line load of installing as shown in Figure 1; And
Fig. 4 shows according to device of the present utility model with another side view.
The specific embodiment
Fig. 1 shows the device 1 for fiber web W being carried out to press polish.This device 1 has multiple rollers, will describe these rollers in the back.All rollers of device 1, all forming each other corresponding roller gap N, carry out press polish to fiber web W in known manner in roller gap.
In principle at least one roller of device 1 is designed to hot-rolling or warm-up mill 2, namely can heats and have the roller of crust.At least one roller is designed to so-called soft roller 3, that is, can not heats and have soft elasticity sheath or the roller of coating 3a, this coating 3a is only visible in Fig. 2.Because the characteristic and application of the coating 3a on heating type and mode and the soft roller 2 of warm-up mill 2 is known, therefore here no longer this is elaborated.The soft coating 3a of at least one soft roller 3 can have for example polymeric material or fiber-reinforced material.Multiple warm-up mills 2 and multiple soft roller 3 are set respectively in the present embodiment, and at this, in shown embodiment, warm-up mill 2 and soft roller 3 are arranged alternately.Obviously, the quantity of roller the and wherein distribution of warm-up mill 2 and soft roller 3 and the quantity of the roller gap N that brings thus can be arbitrarily.The top and nethermost roller at device 1 are so-called deflection-compensated roll 4, and they do not play the part of any role and therefore it are not also elaborated in the utility model.Deflection-compensated roll 4 can be known version.
Use device 1 can carry out press polish to the fiber web W of different in width.Adjust the width of soft coating 3a for this reason according to the width of fiber web W to be calendered, at this, for the very little fiber web W of width, will correspondingly reduce the width of coating 3a.Therefore for corresponding narrow fiber web W, the width of coating 3a will be significantly less than the width of coating 3a soft roller 3 placed on it.
Particularly very high at the lower area of device 1 owing to being arranged in the gravity of roller 2,3 and 4 above owing to being referred to below as linear load and acting on power on the roller 2,3,4 of device 1, soft roller 3, particularly will cause higher linear load at the width diminishing of the coating 3a of the soft roller 3 of bottom, make to carry out press polish to the fiber web that is less than certain width and there is specific quality requirement.
Based on this reason, make at least one soft roller 3, the width that is preferably the coating 3a of the soft roller 3 in the lower area that is arranged on device 1 is obviously greater than the width of fiber web W to be calendered.This exemplarily illustrates in Fig. 2, can see: although the width b1 of the soft coating 3a of soft roller 3 is significantly less than the width b2 of soft roller 3 own, be obviously greater than the width b3 of fiber web W to be calendered.Can make thus linear load be distributed on larger surface and therefore reduce.
Due to the temperature of the warm-up mill 2 in device 1 lower area lower than upper area in the temperature of hot-rolling, the width that therefore increases the coating 3a of soft roller 3 is safe from harm to soft coating, even if soft roller 3 can directly contact with adjacent warm-up mill 2.That is to say, device 1 not only can, for the press polish of the fiber web W to different quality, also can be used for the press polish of the fiber web W to having different in width.Should determine for the various concrete embodiment that installs 1, the soft roller 3 of any coating 3a with the width larger than the width of the fiber web W that wants use device 1 to process is suitable.
Fig. 3 shows for the figure at the linear load of each roller gap N is described.In the present embodiment, be provided with 12 roller gap N, but also can be used in the situation of roller gap N with other any amount according to device 1 of the present utility model.Can see at this: linear load is from the roller gap N of highest point
1downwards, namely along towards minimum roller gap N
12direction increase gradually.But because next to the lowest soft roller 3 is equipped with coating 3a as described above, the width of this coating is greater than the width of fiber web W to be calendered, therefore at the 9th roller gap N
9neutral line load will sharply decline, thereby at minimum roller gap N
12middle realization for example, than middle roller gap (roller gap N
8) in lower linear load.By can be by minimum roller gap N according to device 1 of the present utility model
12in linear load reduce by 30%.
Fig. 4 shows the another kind of embodiment for fiber web W being carried out to the device 1 of press polish.Device 1 as shown in Figure 4 has equally multiple warm-up mills that dispose crust or hot-rolling 2 and multiplely has the soft coating 3a of elasticity and not heatable soft roller 3.Wherein at least one roller is warm-up mill 2 in principle, and at least one roller is soft roller 3.In shown this embodiment, be similar to device 1 as shown in Figure 1, warm-up mill 2 and soft roller 3 alternately arrange, and at this, uppermost roller and the nethermost roller of device 1 are also designed to deflection-compensated roll 4.
In the upper area of device 1, the temperature of warm-up mill 2 is higher than the temperature of warm-up mill in the lower area of device 1, and particularly preferably the temperature of warm-up mill 2 reduces from the top down continuously.This is favourable for fiber web W from the situation of installing 1 upper area input unit 1.If fiber web W from installing the input of 1 lower area, is arranged in the temperature of warm-up mill 2 of device 1 lower area higher than the temperature of warm-up mill 2 that is arranged in device 1 upper area.
For can be easily by fiber web W input unit 1, open the roller gap N in the region that roll temperature is higher, be the upper area of device 1 in the present embodiment, thereby can make fiber web W more easily in the N of input roller gap, and the soft coating 3a of soft roller 3 does not come in contact with the hot surface of warm-up mill 2.That is to say, the first step is first arranged in fiber web W input the roller gap N opening of device 1 upper area.On the contrary, the roller gap in the lower region of roll temperature is closed, and makes thus can not exist the soft coating 3a of soft roller 3 to be subject to the danger of the high temperature injury of warm-up mill 2 in the time of low roll temperature.When fiber web W in the N of input roller gap time, preferably closes the roller gap N that is arranged in roll temperature upper zone on whole width.Then in closed roller gap N, fiber web W is carried out to press polish.
Preferably drive by means of the auxiliary actuator 5 schematically showing the roller 2,3 that is arranged in roll temperature upper zone.That auxiliary actuator 5 can be designed to is in a conventional manner electronic, hydraulic pressure or air motor.Preferably auxiliary actuator 5 is equipped with driven roller, and they push with respect to roller to be driven, thereby drive this roller.Form the not demand motive of each roller 2,3 of the roller gap N closing, because they contact with each other and relatively drive thus.Therefore can not use auxiliary actuator 5 having in the region that roll temperature is low.
In the roller group being formed by roller 2,3,4 of device 1, can arrange and turn to nip or slewing rollers gap, they are preferably placed at zone line or the center of roller group, and preferably by two toward each other or soft roller 3 adjacent one another are or full roller (Vollwalzen) form, guide or press fiber web W with respect to warm-up mill 2 for the zone line in roller group.Can in a roller group, carry out press polish to the two sides of fiber web W in this way.
Claims (5)
1. one kind for carrying out the device (1) of press polish to fiber web (W), has multiple rollers (2,3,4) that form to each other roller gap (N), wherein, roller described at least one is designed to warm-up mill (2), and it can be heated and have crust; Roller described at least one is designed to soft roller (3), it is not heated and has a soft coating (3a), wherein, be significantly less than the width of described soft roller (3) by the width that makes the soft coating (3a) of soft roller (3) described at least one, and the width that makes the width of the soft coating (3a) of soft roller (3) described at least one obviously be greater than described fiber web (W) to be processed matches the width of described soft coating (3a) and the width of described fiber web to be processed (W).
2. device as claimed in claim 1, it is characterized in that, the width of described soft coating (3a) is obviously greater than described fiber web to be processed (W) width described in there is soft coating (3a) soft roller (3) be arranged on the lower area of this device (1).
3. device as claimed in claim 1 or 2, is characterized in that, the soft coating (3a) of described at least one soft roller (3) comprises polymeric material.
4. device as claimed in claim 1 or 2, is characterized in that, the soft coating (3a) of described at least one soft roller (3) comprises fiber-reinforced material.
5. device as claimed in claim 1 or 2, is characterized in that, drives the described roller (2,3,4) that is arranged in high roll temperature degree region by auxiliary actuator (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310200614 DE102013200614A1 (en) | 2013-01-16 | 2013-01-16 | Fiber web polishing device, has soft coating layer whose width is lesser than width of soft roller, where soft coating layer is provided with polymeric and fiber reinforced materials, and auxiliary driver driving in high temperature area |
| DE102013200614.4 | 2013-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203639748U true CN203639748U (en) | 2014-06-11 |
Family
ID=50871006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848783.XU Expired - Fee Related CN203639748U (en) | 2013-01-16 | 2013-12-20 | Device for press polishing fiber web |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203639748U (en) |
| DE (1) | DE102013200614A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856137A (en) * | 2023-09-04 | 2023-10-10 | 莱州联友金浩新型材料有限公司 | Hot rolling optical equipment and hot rolling process for porous fiber film material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29521610U1 (en) | 1995-03-09 | 1997-11-20 | Voith Sulzer Finishing GmbH, 47803 Krefeld | Calender for the treatment of a paper web |
| DE19729531C2 (en) | 1997-07-10 | 2002-12-12 | Voith Paper Patent Gmbh | Paper calender |
-
2013
- 2013-01-16 DE DE201310200614 patent/DE102013200614A1/en not_active Withdrawn
- 2013-12-20 CN CN201320848783.XU patent/CN203639748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856137A (en) * | 2023-09-04 | 2023-10-10 | 莱州联友金浩新型材料有限公司 | Hot rolling optical equipment and hot rolling process for porous fiber film material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013200614A1 (en) | 2014-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: VEIMEIDE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: METSO PAPER INC. |
|
| CP03 | Change of name, title or address |
Address after: Espoo, Finland Patentee after: VALMET TECHNOLOGIES OY Address before: Helsinki Patentee before: METSO PAPER, Inc. |
|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161220 |