EP2238292A1 - Gewebeband für eine maschine zur herstellung von bahnmaterial, insbesondere papier oder karton - Google Patents
Gewebeband für eine maschine zur herstellung von bahnmaterial, insbesondere papier oder kartonInfo
- Publication number
- EP2238292A1 EP2238292A1 EP08870839A EP08870839A EP2238292A1 EP 2238292 A1 EP2238292 A1 EP 2238292A1 EP 08870839 A EP08870839 A EP 08870839A EP 08870839 A EP08870839 A EP 08870839A EP 2238292 A1 EP2238292 A1 EP 2238292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extending
- threads
- fabric layer
- cmd
- fabric
- 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.)
- Granted
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 145
- 239000000463 material Substances 0.000 title claims abstract description 20
- 239000011087 paperboard Substances 0.000 title claims abstract description 7
- 239000000123 paper Substances 0.000 title 1
- 239000011230 binding agent Substances 0.000 claims abstract description 39
- 239000011111 cardboard Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002759 woven fabric Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0036—Multi-layer screen-cloths
- D21F1/0045—Triple layer fabrics
Definitions
- Fabric tape for a machine for producing web material in particular paper or cardboard
- the present invention relates to a fabric tape for a machine for producing web material, in particular paper or cardboard, comprising a web material-side first fabric layer and a machine-side second fabric layer, each with extending in a tape longitudinal direction filaments and in a transverse direction transverse filaments, wherein the first fabric layer and the second fabric layer are connected to each other by pairwise associated binding threads.
- Such a fabric tape which can be used for example as a forming fabric in a machine for the production of paper or cardboard, is known from DE 10 2006 008 812 A1.
- the construction of the fabric tape with two layers of fabric creates the opportunity to contact surface of a web material a very finely structured and only a slight tendency to mark fabric structure in the tape longitudinal direction and tape transverse direction extending threads of this fabric layer, for example, in the manner of a plain weave, on the other hand
- the irregular satin weave provided there and, at the same time, an irregular distribution of the tying points of the binding threads producing the connection between the two fabric layers provide a high level of wearability, in particular in contact with different deflection rolls and drive rolls.
- a fabric band for a machine for producing sheet material in particular paper or cardboard, comprising a first material layer on the web material side and a second fabric layer on the machine side, in each case with threads extending in a band longitudinal direction and in a band transverse direction extending filaments, wherein the first fabric layer and the second fabric layer are connected to each other by binding threads associated with each other in pairs,
- pairs of binder yarns bind with threads of the second fabric layer extending in one direction from the tape longitudinal direction and the tape transverse direction such that in the second fabric layer in the other direction of the tape longitudinal direction and the tape transverse direction successive groups of in one direction are combined by the binder threads extending filaments are formed
- the second fabric layer filaments extending in the other direction from the tape longitudinal direction and the tape transverse direction adjoin the unidirectionally extending filaments of the second fabric layer to form respective bonding sites at one of a machine contact side such that, in the repeat field, at least one group of bonding sites is formed to load the yarns of a group of unidirectionally extending yarns of the second fabric layer in the other direction and / or yarns of one group in the other direction To load themselves extending threads of the second fabric layer in the one direction to each other.
- the fabric tape according to the invention are thus in one direction generates extending groups of threads, in these groups by the summarization of the threads or the loading of the threads on each other to the mutual distance of the threads is smaller than the distance of individual groups with each other.
- comparatively thin threads can be used, which by grouping together nevertheless act as "thicker threads", which then together with the threads of the second fabric layer extending in the other direction which, in fact, can have a larger cross-sectional dimension without creating the disadvantages of using generally very coarse, thick-filament fabric structures to produce a very stable, stable machine contact surface.
- adjacent groups of unidirectionally extending threads of the second fabric layer comprise the same number of threads in the other direction.
- the interaction of the pairs of binder yarns with the unidirectional yarns of the second fabric layer may be such that a binder yarn pair alternately has a binder yarn on the machine contact side of a group of yarns of the second fabric layer extending in one direction and the other binder yarn the machine contact page of the next but one group of in the extending one direction extending threads of the second fabric layer.
- two threads of the first fabric layer extending in the other direction and two threads of the second fabric layer extending in the other direction are provided between two pairs of binder yarns following one another .
- the number of existing threads of the first fabric layer or the second fabric layer can be chosen differently, which depends on how strong the mutual connection of the two fabric layers should be.
- first termination site and a second termination site in the other direction be located on both sides of the latter Group of binding sites on each other to be loaded threads of a group of unidirectionally extending threads of the second fabric layer are formed. It can be provided that the first ligation point and the second ligation point are formed by immediately adjacent in the other direction extending threads of the second fabric layer.
- such a group of tying sites may include a third tying site and a fourth tying site formed in one direction on both sides of the first tying site and the second tying site and in the other direction between the first tying site and the second tying site. It can be provided that the third ligation point and the fourth ligation point are formed on immediately adjacent in the one direction extending threads of a group of extending in one direction threads of the second fabric layer.
- the groups of tie sites provided in accordance with one aspect of the invention may additionally entail the effect of grouping threads extending in the other direction.
- the offsets formed at the attachment points not only of the threads extending in the other direction but also of the threads extending in one direction, in particular those threads extending in the other direction are loaded against each other between two in one direction Distance from each other arranged Abbindestellen, ie in particular the third and fourth Abbindestelle, are positioned.
- the threads of the second thread extending in the other direction form between the threads forming the first bonding zone and the second bonding zone Fabric layer is arranged a binder thread pair.
- the binding threads of a respective pair of binding threads are tightly bordered and thus also supported by those threads, which are combined by two or more tie-down points to in the other direction extending and then in one direction then adjacent groups.
- the second fabric layer that is to say that fabric layer which also establishes contact with the various deflecting or driving rollers, can for example be constructed such that in a repeat field each thread of the second fabric layer extending in the other direction abuts a single one in the a direction extending yarn of the second fabric layer sets to form a bonding point, and / or that in a repeat field at each in the one direction extending yarn of the second fabric layer, a single in the other direction extending thread of the second fabric layer sets.
- the one direction may, for example, correspond to the band longitudinal direction, in which case the other direction corresponds to the band transverse direction.
- the one direction corresponds to a warp direction and the other direction corresponds to a weft direction.
- FIG. 1 shows a plan view of four immediately adjacent repeat fields of a machine-side fabric layer, viewed from the machine side;
- FIG. 2 shows a diagram illustrating the course of the pairwise associated binding threads in two adjacent repeat fields
- FIG. 1 for a repeat field of the binding pattern of FIG. 1 the course of the threads of a web material-side fabric layer, a machine-side fabric layer and the course of the two fabric layers merging and mutually associated binding threads.
- FIGS. 1 to 3 the binding principle of the present invention is explained on the basis of the course of the various threads of two fabric layers of a fabric strip which can be used, for example, as a forming fabric.
- B1, B2, B3, B4, B5, B6, B7 and B8 denote those threads of a machine-side fabric layer 100, which in Figs. 1 and 3 itself extend from left to right and extend in the fabric tape preferably in a tape transverse direction CMD.
- T1, T2, T3, T4, T5, T6, T7 and T8 denote the filaments of a web material-side fabric layer 102 which extend in the same direction, that is to say the tape transverse direction CMD.
- threads 2, 4, 6, 8, 10, 12, 14, 16 extend in the machine side fabric layer, which strip longitudinal direction MD thus also corresponds to a machine direction, while threads 15 in the material web side 102 likewise threads 1, 3 , 5, 7, 9, 11, 13 and 15 extend in the tape longitudinal direction MD.
- the threads T1 - T8 follow one another in a respective repeat field, which defines the smallest repeat unit in the tape longitudinal direction MD and tape transverse direction CMD.
- a pair of mutually associated binder threads Bi1, Bi2, Bi3, Bi4, Bi5, Bi6, Bi7 follows.
- BI8 That is, within each repeat field, several such binder thread pairs Bi1 -2, Bi3-4, Bi5-6, Bi7-8 exist consecutively in the band longitudinal direction MD.
- the individual binding threads change, as illustrated, for example, by means of the binding thread pair BM -2 at intersections K between the web material side fabric layer 102 and the machine side fabric layer 104.
- binding threads Bi1 and Bi2 are integrated into the web material-side fabric layer 102, together with the filaments 1, 3, 5, 7, 9, 11, 13, 15 extending in the band longitudinal direction MD, form a plain weave, so that a very finely structured web material contact surface is formed on the web material side 106.
- the binding threads Bi1, Bi2, Bi3, Bi4, Bi5, Bi6, Bi7, Bi8 are thus also structurally forming used, so that each pair of binder thread Bi1 -2, Bi3-4, Bi5-6, Bi7-8 in the web material-side fabric layer 104 actually replaces a complete and in the tape transverse direction CMD extending thread.
- the yarns B1, B2, B3, B4, B5, B6, B7 and B8 extending in the tape transverse direction CMD generally run on a side of the corresponding yarns 2, 4, 6 extending in the tape longitudinal direction MD on a machine side 108 8, 10, 12, 14, 16 of this fabric layer 100.
- each of the yarns B1 -B8 extending in the tape transverse direction CMD binds at a bonding point X via one of the yarns 2, 4, 6, 8, 10 , 12, 14, 16 of this fabric layer 100.
- over here means that the setting takes place on the side facing away from the machine side 108 of a respective thread extending in the strip longitudinal direction MD, as illustrated, for example, by the fastening point X of the thread B1 in FIG. Where these threads B1 -B8 form no tie-off points X, they run or float on the machine side 108 of the threads 2, 4, 6, 8, 10, 12, 14, 16 of this fabric layer 100 extending in the tape longitudinal direction MD.
- an atlas binding in the illustrated example of a repeat field with eight adjacent threads Achteratlas Kunststoff realized, which ensures that almost the entire machine contact surface is provided on the machine side 108 by evenly extending thread sections, so that on the one hand produces a very smooth, flat machine contact surface On the other hand, thereby the wear resistance is increased.
- binder thread pair Bi3-4 equally summarized with the binder thread Bi3 the threads 8, 10 to a group G1, while the binder thread Bi4 summarizes the thread 2 of this repeat field with the thread 16 of an immediately adjacent repeat field to a group G1.
- binder thread pair Bi5-6 again summarizes the threads 4, 6 and 12, 14 together to form a respective group G1.
- each of the binding threads extends on the machine side 108 of these threads or group G1 of threads.
- the binder thread pair Bi1 -2 Between two such courses is in each pair of binder yarn, for example, the binder thread pair Bi1 -2, then each a group of extending in the tape longitudinal direction threads that are not summarized by this pair of binder threads in that a respective binder thread extends on the machine side of these threads.
- the binding thread pair Bi1 -2 these are, for example, the threads 8, 10 and 16, 2 in FIG. 3.
- groups G1 in the band longitudinal direction MD extending threads, which are formed here by the threads 4, 6 and 8, 10 and 12, 14 and 16, 2 (in the adjoining region of two repeat fields). These groups G1 extend through the repeat field in the entire tape longitudinal direction MD.
- the spacing of threads extending within the band longitudinal direction MD within a respective group G1 with threads 4, 6 or 8, 10 or 12, 14 or 16, 2 is smaller than the spacing between the individual groups G1.
- These groups G1 thus act as a virtual "thicker" thread over which a respective thread B1, B2, B3, B4, B5, B6, B7, B8 extending in the transverse tape direction CMD sets to produce a respective binding position X.
- This course of the binding threads Bi1 -Bi6 or the position of their crossing points K which are each represented in Fig. 2 by an asterisk, means that, as shown in FIG. 2, extending in the band longitudinal direction MD and in the Yarns 1, 3 or 9, 11 of the web of material matehalseiti- lying 102 lying bands of intersections K arise, while in the threads 5, 7 and 13, 15 no crossing points K are available.
- a further contribution to the formation of individual groups G1 of threads in the machine-side fabric layer 100, which then act as a seemingly thicker thread despite comparatively thin thread material, is defined by the te positioning of the Abbindestellen X of extending in the strip transverse direction CMD filaments B1 -B8 attained. This will be illustrated below with reference to FIG. 1 and the right there below Rapportfeld.
- tie-down points X which exert forces on the threads 2, 4, 6, 8, 10, 12, 14, 16 of the machine-side fabric layer 100 extending in the tape longitudinal direction MD such that the same applies Threads 4, 6 and 8, 10 and 12, 14 and 16, 2 to be loaded on each other.
- group G2 there are two tying points X1, X2 which are positioned in the transverse tape direction CMD on both sides of the two yarns to be gathered into a group G1.
- the tying point of the thread B3 over the thread 10 can be regarded as a first tying point X1, while the tying point of the thread B2 over the thread 16 can be considered as a second tying point X2.
- the thread B3 exerts a force on the thread 12, which loads it in the direction of the thread 14, while the thread B2 exerts a force on the thread 14, which loads it in the direction of the thread 12.
- Another pair of bonding sites X within such a group G2 is positioned so that it lies in the band longitudinal direction MD on both sides of the first and second bonding sites X1, X2 mentioned above, but lies between these two bonding sites X1, X2 in the band transverse direction CMD.
- the tying point of the thread B1 over the thread 12 can be considered as a third tying point X3 of the group G2, while the tying point of the thread B4 over the thread 14 can be considered as a fourth tying point X4.
- the third Abbindestelle X3 a force is generated, which spreads the threads 10 and 12 apart, while a force is generated by the fourth Abbindestelle X4, which spreads the threads 14 and 16 apart.
- Another effect generated by the provision of the binding sites X in a defined positioning is that not only the pairing of filaments B2-B16 extending in the ribbon longitudinal direction MD is supported, but also adjacent filaments B1 -B8 in the ribbon transverse direction CMD be grouped into groups or pairs. In Fig. 1, this is illustrated on the left edge of the diagram by the respective threads B2, B3 and B4, B5, etc. summary brackets.
- This effect is produced by the fact that, in the case of a respective group G2, the third fastening point X3 and the fourth fastening point X4 are positioned such that threads extend between these two threads, which are then combined into a pair or gathered and extend in the transverse band direction CMD.
- the crests produced at the respective bonding sites X are present not only at the filaments extending in the ribbon transverse direction CMD.
- the filaments 2 to 16 extending in the strip longitudinal direction MD are also bent at these places, ie they are deflected out of their rectilinear extent and produce with this offset a force in the strip longitudinal direction MD which exerts on a directly adjacent thread extending in the transverse direction CMD becomes.
- the thread 12 of the fabric layer 100 which sets at the bonding point X3 with the yarn B1 presses the yarn B2, which immediately follows in the longitudinal direction of the tape MD, downwardly in the illustration of FIG.
- the thread B3 extending in the transverse tape direction CMD is pressed upward, so that here by the group G2, in particular the tying points X3 and X4, the yarns B2 and B3 are moved closer to each other and, for example, the yarns B1 and B2 are spread apart.
- This effect utilizes the present invention to arrange, in each case between two such yarns forming a yarn group extending in the tape transverse direction CMD, a pair of binder yarns, in the example described above, the pair formed by binder yarns Bi1 and Bi2.
- the yarns B2 and B3 thus closer to each other thus form a protection for the binder thread pairs enclosed there, in particular on the machine side 108, so that they are subjected to less stress, in particular in interaction with the various rollers driving or deflecting such a belt.
- FIG. 1 Another clearly recognizable in Fig. 1 special effect in the pairing of extending in the strip transverse direction CMD filaments B1 to B8 interacting with the binding threads Bi1 -Bi8 extending in the same direction is that the bonding sites X contributing to pair formation in a respective group B2, ie in particular the bonding sites X3 and X4, are positioned exactly there, ie those in the band longitudinal direction MD extending filaments are formed, which are summarized by a respective binder thread to a pair.
- binding thread Bi1 -Bi8 on the machine side 108 of extending in the tape longitudinal direction MD threads 2 to 16 of the fabric layer 100, so this runs very exposed in terms of a wear-critical interaction with driving or deflecting rollers that in the strip transverse direction CMD extending and these binding threads enclosing threads B1 -B8 are loaded by the Abbindestellen X3, X4 to each other and thus produce exactly at this critical position effective protection for a respective binder thread.
- the tape longitudinal direction MD ie the machine direction
- the tape transverse direction CMD ie the cross machine direction
- the number of threads in a respective group G1 can be different than in the illustrated example, but it has been shown that the selection of groups G1 with two threads each has the desired effect of combining or loading
- the groups G1 can be oriented in such a way that they extend in the transverse direction CMD of the belt.
Landscapes
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
- Paper (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008000088A DE102008000088A1 (de) | 2008-01-18 | 2008-01-18 | Gewebeband für eine Maschine zur Herstellung von Bahnmaterial, besondere Papier oder Karton |
| PCT/EP2008/064863 WO2009089930A1 (de) | 2008-01-18 | 2008-11-03 | Gewebeband für eine maschine zur herstellung von bahnmaterial, insbesondere papier oder karton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2238292A1 true EP2238292A1 (de) | 2010-10-13 |
| EP2238292B1 EP2238292B1 (de) | 2011-08-24 |
Family
ID=40263549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08870839A Not-in-force EP2238292B1 (de) | 2008-01-18 | 2008-11-03 | Gewebeband für eine maschine zur herstellung von bahnmaterial, insbesondere papier oder karton |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20100258259A1 (de) |
| EP (1) | EP2238292B1 (de) |
| CN (1) | CN101910511B (de) |
| AT (1) | ATE521753T1 (de) |
| BR (1) | BRPI0819401A2 (de) |
| CA (1) | CA2708435A1 (de) |
| DE (1) | DE102008000088A1 (de) |
| ES (1) | ES2369123T3 (de) |
| WO (1) | WO2009089930A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014001502U1 (de) * | 2013-03-01 | 2014-03-21 | Voith Patent Gmbh | Gewobenes Sieb mit flachen Kettfäden |
| ES2563193T3 (es) * | 2014-01-28 | 2016-03-11 | Heimbach Gmbh & Co. Kg | Tela de máquina papelera |
| DE102022117304B3 (de) * | 2022-07-12 | 2023-10-12 | Voith Patent Gmbh | Gewebeband |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6978809B2 (en) * | 2003-09-29 | 2005-12-27 | Voith Fabrics | Composite papermaking fabric |
| US7007722B2 (en) * | 2003-11-17 | 2006-03-07 | Voith Paper Patent Gmbh | Forming fabric |
| JP4762529B2 (ja) * | 2004-11-17 | 2011-08-31 | 日本フイルコン株式会社 | 工業用二層織物 |
| JP4762530B2 (ja) * | 2004-11-30 | 2011-08-31 | 日本フイルコン株式会社 | 工業用二層織物 |
| DE102006008812A1 (de) | 2006-02-25 | 2007-08-30 | Voith Patent Gmbh | Gewebeband für eine Maschine zur Herstellung von Bahnmaterial, insbesondere Papier oder Karton |
| DE102007020071A1 (de) * | 2007-04-28 | 2008-10-30 | Voith Patent Gmbh | Formiersieb |
-
2008
- 2008-01-18 DE DE102008000088A patent/DE102008000088A1/de not_active Withdrawn
- 2008-11-03 AT AT08870839T patent/ATE521753T1/de active
- 2008-11-03 CA CA2708435A patent/CA2708435A1/en not_active Abandoned
- 2008-11-03 EP EP08870839A patent/EP2238292B1/de not_active Not-in-force
- 2008-11-03 BR BRPI0819401 patent/BRPI0819401A2/pt not_active IP Right Cessation
- 2008-11-03 CN CN200880124942.3A patent/CN101910511B/zh not_active Expired - Fee Related
- 2008-11-03 ES ES08870839T patent/ES2369123T3/es active Active
- 2008-11-03 WO PCT/EP2008/064863 patent/WO2009089930A1/de not_active Ceased
-
2010
- 2010-05-27 US US12/788,881 patent/US20100258259A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009089930A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2369123T3 (es) | 2011-11-25 |
| BRPI0819401A2 (pt) | 2015-04-22 |
| CN101910511A (zh) | 2010-12-08 |
| WO2009089930A1 (de) | 2009-07-23 |
| CA2708435A1 (en) | 2009-07-23 |
| DE102008000088A1 (de) | 2009-07-23 |
| ATE521753T1 (de) | 2011-09-15 |
| CN101910511B (zh) | 2013-06-19 |
| US20100258259A1 (en) | 2010-10-14 |
| EP2238292B1 (de) | 2011-08-24 |
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