EP2198085A1 - Transporting belt with peripheral reinforcement - Google Patents
Transporting belt with peripheral reinforcementInfo
- Publication number
- EP2198085A1 EP2198085A1 EP08749833A EP08749833A EP2198085A1 EP 2198085 A1 EP2198085 A1 EP 2198085A1 EP 08749833 A EP08749833 A EP 08749833A EP 08749833 A EP08749833 A EP 08749833A EP 2198085 A1 EP2198085 A1 EP 2198085A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer material
- base structure
- paper
- polymer layer
- belt
- 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
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/086—Substantially impermeable for transferring fibrous webs
Definitions
- the invention relates to a belt, in particular conveyor belt or process belt for web-processing and / or web-making machines, in particular paper, board or tissue machines according to the preamble of patent claim 1 and claim 2.
- conveyor belts are used in paper machines to transport a paper web in the paper machine from a first transfer point, at which the material web is transferred from a fabric to the belt, to a second transfer point, at which the material web from the belt to another clothing is handed over.
- the paper web is guided on such conveyor belts between the two transfer points through a press nip. In this case, then, for example, a smoothing of the paper web by the conveyor belt instead.
- the conveyor belts in question usually have a load-bearing base structure which, for example, is designed as a fabric on which a polymer layer providing the paper side is arranged, which is often impermeable.
- a disadvantage of the conveyor belts known from the prior art is that the band edges extending in the longitudinal direction of the band often "fray” or are rubbed off, which leads to a weakening of the band edges.
- the object of the present invention to improve conveyor belts of the type mentioned in that their band edges are more wear resistant.
- the tape has only a paper-side polymer layer
- the object is achieved by a belt for transporting a material web in a web-producing and / or web-processing machine, in particular paper, board or tissue machine, which is bounded on both sides by a respective longitudinal edge in its transverse direction, wherein the strip comprises a load-bearing base structure and a polymer layer which provides the paper side of the strip and wherein in the area of at least one longitudinal edge an edge reinforcement providing at least part of the longitudinal edge is formed by the paper-side polymer layer in the region of the longitudinal edge transversely across the strip the base structure protrudes and a step formed thereby extending in the longitudinal direction of the strip is at least partially filled with a polymer material, whereby the edge reinforcement forms at least part of the longitudinal edge of the strip.
- the application is achieved by a belt for transporting a material web in a web-producing and / or web-processing machine, in particular a paper, board or tissue machine, which in its transverse direction has a longitudinal edge on both sides is limited, wherein the band comprises a load-bearing base structure which is arranged between a paper-side polymer layer and a running side polymer layer and wherein in the region of at least one longitudinal edge at least a part of the longitudinal edge providing edge reinforcement is formed by the two polymer layers in the region of the longitudinal edge Transverse direction of the band protrude over the base structure and thereby formed in the longitudinal direction of the band extending groove is at least partially filled with a polymer material.
- the edge reinforcement comprises a polymer material, and viewed in the transverse direction of the tape, the paper-side polymer layer (and the polymer back-end layer) protrudes toward the longitudinal edge of the tape over one end of the base structure, wherein at least a portion of the longitudinal edge of the tape is formed by exposing the polymeric material at least partially over the end of the basic covered structure of the polymer layer and in that the polymer material completely covers the end of the base structure.
- the invention is based on the idea of protecting the often wear-sensitive basic structure in the area of the band edge by a polymer material. According to the invention, this is achieved by projecting the paper-side polymer layer outwardly beyond the end of the base structure in the region of the band edge and the space formed by the section of the polymer layer projecting beyond the end of the base structure and the end of the base structure at least in sections filled with a polymeric material.
- the edge reinforcement forming polymer material is integrally formed.
- a preferred embodiment of the invention provides that the polymer material filling the step or the groove is designed to be complementary in shape to the step or groove. This can be achieved, for example, by filling the polymer material in an informal manner, ie, for example, in liquid form, into the step or into the groove and then solidifying it. In this case, the polymer material may, for example, be brought to solidification or solidification by the action of heat. Furthermore, it is conceivable that the polymer material itself cross-links during solidification and / or crosslinks with the polymer material of the paper-side and / or running-side polymer layer. The fact that the polymer material is introduced informally, it can fill all cavities of the step or groove completely.
- the polymer material of the edge reinforcement in the contact region with the polymer layer (s) and the base structure forms a complementary shape with respect to these and is therefore firmly connected to them.
- the edge reinforcement with the at least one polymer layer and with the base structure is materially and / or positively and / or positively connected.
- connection partners are held together by atomic or molecular forces.
- connection by gluing, chemical crosslinking or vulcanization is to be understood here.
- the polymer material of the edge reinforcement at least partially fills the groove or step from the end of the base structure.
- the groove may, for example, be viewed in the cross-section of the band such that the distance between the mutually facing surfaces of the paper-side and the running-side polymer layer from the inside of the band, i. from the end of the base structure to the longitudinal edge of the band remains constant.
- the groove is, for example, U-shaped.
- the groove is formed such that the
- the groove may be V-shaped. If the groove increases towards the longitudinal edge, this increases through the
- Polymer material of the edge reinforcement provided wear volume in
- the band has a constant thickness over its entire width. This means that on the paper and the run side of the tape, the area around the tape edges is not increased relative to the tape center.
- a preferred embodiment of the invention provides that the polymer material of the edge reinforcement in the transverse direction of the tape projects at least in sections over the paper-side polymer layer and / or over the running polymer layer.
- the longitudinal edge of the tape according to the invention has a transverse in the tape on the paper side and the running side (if provided) polymer layer projecting part, which is formed by the edge reinforcement and which represents a wear volume of the longitudinal edge of the band edge.
- the polymer material of the edge reinforcement is a different polymer material than the polymer material of the paper side polymer layer and / or as the polymer material of the running polymer layer.
- the polymer material of the edge reinforcement has a greater hardness and / or a greater abrasion resistance than the polymer material of the paper-side polymer layer and / or the polymer material of the running polymer layer. As a result, the wear resistance of the band edge can be further improved.
- the polymer material of the paper-side and / or traveling-side polymer layer has a hardness in the range of 20 and 95Shore A
- the polymer material of the edge reinforcement has a greater hardness than the paper-side and / or running-side polymer layer, which is in the range of 50Shore A to 90Shore D, especially 50Shore A to 95Shore A may be.
- both the two polymer layers and the polymer material of the edge reinforcement are formed from polyurethane, wherein the polyurethane of the edge reinforcement is harder than the polyurethane of the two polymer layers.
- the polymer material of the one or both polymer layers preferably comprises polyurethane.
- the polymer material of the edge reinforcement may comprise polyurethane, silicone, polyamide, epoxy resin, polyolefin, polyester or amides, alone or in combination.
- a particularly preferred embodiment of the invention provides that the polymer material of the edge reinforcement is thixotropic and in particular has a viscosity in the range from 400,000 cps to 10,000,000 cps.
- a filler in particular a particulate filler such as SiC (silicon carbide) and / or CaCO 3 (calcium carbonate), embedded more resistant to abrasion than the polymeric material of the edge reinforcement.
- the polymer material of the edge reinforcement extends transversely from the longitudinal edge in a range of 1 mm to 15 mm, in particular 2 mm to 7 mm, inwards.
- the step or the groove can be formed, for example, by the longitudinal thread (s) which are arranged in the transverse direction of the band in the region of the longitudinal edge the base structure are removed.
- the load-bearing base structure can be formed by a textile surface, in particular by a fabric, a group of bevels extending in MD and / or CMD, and / or by a non-textile fabric, in particular by one or more film (s).
- the tape according to the invention may be a tape in which the paper side and / or side polymer layer is impermeable to fluid.
- An embodiment of the method according to the invention provides that in step b) the one side of the base structure is coated with the first polymer material for providing the paper side and simultaneously or subsequently the other side of the base structure opposite the one side is coated with a third polymer material.
- a further embodiment of the method according to the invention provides that in step c) a part of the base structure in an edge region of the semifinished strip is removed in such a way that the paper side and the running side polymer layer extend over the base structure in the transverse direction of the strip.
- step d) provides, in particular at least in sections, for the groove formed between the paper-side polymer layer, the running polymer layer and the base structure (which extends in the longitudinal direction of the tape) with the second polymer material Training at least a portion of the longitudinal edge of the tape is filled.
- the second shapeless polymer material for example liquid polymer material
- the second shapeless polymer material is filled into the space by means of a casting process.
- a concrete embodiment of the method according to the invention further provides that the base structure comprises longitudinal threads extending in the longitudinal direction of the strip and at step c) at least the two outermost longitudinal threads are removed from the base structure in the at least one edge area.
- step e) additionally a firm connection between the second polymer material and the base structure and the paper side and / or running side polymer layer is formed.
- FIG. 1 shows a first embodiment of a band according to the invention
- FIG. 2 shows a second embodiment of a band according to the invention
- FIG. 3 shows different ways of forming a longitudinal edge of a band according to the invention
- Figure 4 shows an embodiment of a method according to the invention.
- FIG. 1 shows a band 1 according to the invention in the region of one of its two band edges 2 in the transverse direction (CMD).
- CMD transverse direction
- the band 1 is bounded on both sides in its transverse direction (CMD) by a respective longitudinal edge 3, of which only one is shown.
- the belt 1 has a load-bearing base structure 4 formed by a fabric 4, which is arranged between an impermeable paper-side polymer layer 5 and an impermeable running-side polymer layer 6.
- the fabric 4 providing the base structure 4 has transverse threads 7 which are interwoven with longitudinal threads 8 extending parallel to the longitudinal edge 3.
- the band 1 in the region 2 of its longitudinal edges 3 has an edge reinforcement 11, which is formed according to the invention by the two polymer layers 5, 6 in the transverse direction (CMD) of the band 1 protrude over the base structure 4 in the region 2 of the longitudinal edge 3 and a formed therein in the longitudinal direction of the belt 1 extending groove 9 (highlighted by dashed line) is completely filled with a polymer material 10.
- the edge reinforcement 11 forming polymer material 10 thus follows viewed in the transverse direction of the belt to the longitudinal edge 3 of the band 1 facing end 15 of the base structure 4 and thus covers it.
- the longitudinal direction of the band 1 in the illustration of FIG. 1 extends perpendicular to the plane of the drawing.
- the longitudinal edge 3 of the strip 1 is formed by the two end edges 3 ' and 3 "of the two polymer layers 5, 6 and the outwardly curved end edge of the polymer material 10 (the profile of the longitudinal edge 3 in cross section is a thick Line highlighted).
- the polymer material 10 filling the groove 9 is designed in the form of a contour to the groove 9. In the present case, this was achieved by filling the polymer material 10 in the liquid state into the groove 9 and then solidifying it by the action of heat. In the solidification, the polymer material 10 is crosslinked both by itself and with the polymer material of the paper-side polymer layer 5 and the polymer layer 6 on the running side.
- the band 1 has a constant thickness over its entire width.
- the polymer material 10 of the edge reinforcement 11, seen in the transverse direction CMD of the strip 1, extends over the paper-side polymer layer 5 and over the running-side polymer layer 6, thus providing an increased wear volume.
- the polymer material of the two polymer layers 5, 6 is PU with a hardness of 85Shore A
- the polymer material 10 of the edge reinforcement 11 is PU with a hardness of ⁇ OShore D.
- a particulate filler such as SiC (silicon carbide) is further embedded.
- SiC silicon carbide is more abrasion resistant than the PU of the edge reinforcement 11.
- FIG. 2 shows a further band 1 according to the invention in the region of one of its two band edges 2 in the transverse direction (CMD).
- CMD transverse direction
- the band 1 has a load-bearing base structure formed as a fabric 4 and a polymer layer 5 provided on the base structure 4 providing the paper side of the band 1.
- the edge reinforcement 11 is formed by forming in the region of the longitudinal edge 3 (the Longitudinal edge 3 in cross-section is emphasized by a thick line) the paper-side polymer layer 5 in the transverse direction (CMD) of the band 1 projects over the base structure 4 and a step 12 formed thereby extending in the longitudinal direction of the band 1 (highlighted by dashed line) partially filled with the polymer material 10.
- the edge reinforcement 11 forming polymer material 10 thus follows viewed in the transverse direction of the belt to the longitudinal edge 3 of the band 1 facing end 15 of the base structure 4 and thus covers it.
- FIG. 3 shows various possibilities of forming a longitudinal edge of a strip according to the invention.
- the groove 9 is formed such that viewed in the cross section of the strip, the distance between the paper side 5 and the running side polymer layer 6 from the inside to the longitudinal edge of the tape remains constant. Furthermore, in the variant shown in FIG. 3, the groove 9 is only partially filled, i. The polymer material 10 of the edge reinforcement 11 does not protrude beyond the paper-side polymer layer 5 in the transverse direction CMD of the belt 1 and does not protrude beyond the running-side polymer layer 6.
- FIG. 4 shows an embodiment of a method according to the invention for producing the band of FIG. 1.
- the band 1 is produced, which has been produced by the load-bearing base structure 4 on a side 4 a with a first polymer material 13 for providing a band Paper side of the belt 1 and at the same time the one side 4a opposite the other side 4b of the base structure 4 has been coated with a third polymer material 14.
- FIG. 4b shows the production stage of the strip by removing part of the base structure 4a in a region of a longitudinal edge 3 of the semi-finished strip. Specifically, the two outermost longitudinal threads 8 ' and 8 "of the base structure formed as the fabric 4 were removed. As a result, the paper-side polymer layer 5 and the traveling-side polymer layer 6 protrude over the base structure 4 in the transverse direction of the tape 1, thereby forming a groove 9 is.
- FIG. 4c shows the finished band 1 in which the groove 9 has been completely filled with a shapeless second polymer material 10 to form at least a portion of the longitudinal edge 3 of the band 1 and subsequently solidified.
- the second polymer material was filled into the space by means of a casting process.
Landscapes
- Paper (AREA)
- Laminated Bodies (AREA)
- Belt Conveyors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007044552A DE102007044552A1 (en) | 2007-09-15 | 2007-09-15 | Conveyor belt with edge reinforcement |
PCT/EP2008/055221 WO2009033829A1 (en) | 2007-09-15 | 2008-04-29 | Transporting belt with peripheral reinforcement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2198085A1 true EP2198085A1 (en) | 2010-06-23 |
EP2198085B1 EP2198085B1 (en) | 2011-09-28 |
Family
ID=39620356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08749833A Not-in-force EP2198085B1 (en) | 2007-09-15 | 2008-04-29 | Transporting belt with peripheral reinforcement |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100300849A1 (en) |
EP (1) | EP2198085B1 (en) |
CN (1) | CN101861429A (en) |
AT (1) | ATE526454T1 (en) |
CA (1) | CA2699453A1 (en) |
DE (1) | DE102007044552A1 (en) |
ES (1) | ES2373497T3 (en) |
PT (1) | PT2198085E (en) |
WO (1) | WO2009033829A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2676903A1 (en) * | 2012-06-19 | 2013-12-25 | Habasit Italiana S.P.A. | Acrylic-free conveyor belt |
DE102015212480A1 (en) * | 2015-07-03 | 2017-01-05 | Contitech Transportbandsysteme Gmbh | In the longitudinal direction endless closed band, in particular round baler belt |
DE102015212481A1 (en) | 2015-07-03 | 2017-01-05 | Contitech Transportbandsysteme Gmbh | In the longitudinal direction endless closed band, in particular round baler belt |
US10246261B2 (en) | 2015-09-29 | 2019-04-02 | Contitech Transportbandsysteme Gmbh | Conveyor belt |
CN106477236B (en) * | 2016-10-15 | 2019-05-10 | 山东瀚邦胶带有限公司 | A kind of anti-mining unitary-core flame-resistant conveying belt of extraction of edge |
CN108373014A (en) * | 2018-02-11 | 2018-08-07 | 苏州市优福通铝合金升降机械有限公司 | A kind of flexible wear-resistant transmission belt |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3193425A (en) * | 1963-04-10 | 1965-07-06 | American Biltrite Rubber Co | Edge bonding of conveyor belts |
GB1603547A (en) | 1978-05-18 | 1981-11-25 | Beloit Corp | Blanket for the production of extensible paper |
US4667812A (en) * | 1981-05-08 | 1987-05-26 | Joy Manufacturing Company | Conveyor belt assembly and method |
US5326411A (en) * | 1991-10-17 | 1994-07-05 | Morrison Company, Inc. | Method for making belting with increased edge modulus |
ES2177978T3 (en) * | 1996-07-02 | 2002-12-16 | Yokohama Rubber Co Ltd | CONVEYOR BELT. |
JP4627137B2 (en) * | 2003-03-19 | 2011-02-09 | イチカワ株式会社 | Wet paper transport belt |
US7464809B2 (en) * | 2005-04-26 | 2008-12-16 | Nitta Corporation | Flat belt |
-
2007
- 2007-09-15 DE DE102007044552A patent/DE102007044552A1/en not_active Withdrawn
-
2008
- 2008-04-29 WO PCT/EP2008/055221 patent/WO2009033829A1/en active Application Filing
- 2008-04-29 ES ES08749833T patent/ES2373497T3/en active Active
- 2008-04-29 CN CN200880116042A patent/CN101861429A/en active Pending
- 2008-04-29 AT AT08749833T patent/ATE526454T1/en active
- 2008-04-29 PT PT08749833T patent/PT2198085E/en unknown
- 2008-04-29 EP EP08749833A patent/EP2198085B1/en not_active Not-in-force
- 2008-04-29 CA CA2699453A patent/CA2699453A1/en not_active Abandoned
-
2010
- 2010-03-15 US US12/723,811 patent/US20100300849A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2009033829A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102007044552A1 (en) | 2009-03-19 |
PT2198085E (en) | 2011-12-23 |
CA2699453A1 (en) | 2009-03-19 |
WO2009033829A1 (en) | 2009-03-19 |
EP2198085B1 (en) | 2011-09-28 |
ES2373497T3 (en) | 2012-02-06 |
ATE526454T1 (en) | 2011-10-15 |
CN101861429A (en) | 2010-10-13 |
US20100300849A1 (en) | 2010-12-02 |
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