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1. 发明公开

EP3561176A1 PAPER MACHINE CLOTHING AND METHOD OF PRODUCING THE SAME 有权转让
公开(公告)号：EP3561176A1
公开(公告)日：2019-10-30
申请号：EP18180071.5
申请日：2018-06-27
申请人： Voith Patent GmbH
发明人： Köckritz Dr., Uwe , Holl, Reinhard , Straub, Michael , Kallenberg, Jens , Kalefe, Timo , Meijer, Tom , Bergvall, Johan , Böck, Johann
IPC分类号： D21F1/00
摘要： The present invention concerns a paper machine clothing comprising a substrate with an upper side, a lower side, two lateral edges and an usable region between the two lateral edges, wherein the usable region comprises a plurality of through-channels extending through the substrate and connecting the upper side with the lower side, wherein the through-channels are non-cylindrical with a cross sectional area becoming smaller when going in a thickness direction of the substrate (20) from the upper side to a middle region of the substrate between the upper side and the lower side, wherein a shape of the cross sectional area of at least one through-channel, preferably of all through-channels, of the plurality of through-channels changes when going in the thickness direction of the substrate from the upper side to the lower side.

2. 发明公开

EP3839135A1 PAPER MACHINE CLOTHING AND METHOD OF PRODUCING THE SAME 有权
公开(公告)号：EP3839135A1
公开(公告)日：2021-06-23
申请号：EP19217789.7
申请日：2019-12-19
申请人： Voith Patent GmbH
发明人： Köckritz Dr., Uwe , Iniotakis, Christian , Holl, Reinhard , Kallenberg, Jens , Straub, Michael , Fitzer, Cedric
IPC分类号： D21F1/00
摘要： The present invention concerns a paper machine clothing comprising a substrate (20) with an upper side (22), a lower side, two lateral edges and an usable region between the two lateral edges, wherein the usable region comprises a plurality of through-channels extending through the substrate (20) and connecting the upper side (22) with the lower side, wherein the through-channels are non-cylindrical with a cross sectional area becoming smaller when going in a thickness direction of the substrate (20) from the upper side (22) to a middle region of the substrate between the upper side and the lower side, wherein an upper rim of at least one of the plurality of through-channels directly contacts an upper rim of at least one other neighboring through-channel of the plurality of through-channels, wherein the upper rims of both neighboring through-channels have at least one common local maximum (42), wherein a sectional plane being parallel to the thickness direction of the substrate (20), comprising the at least one common local maximum (42) and comprising or intersecting the central axis of at least one of the two neighboring through-channels defines an intersecting line with a sidewall of the at least one of the two neighboring through-channels, and wherein the intersecting line comprises a first portion (44) that is convexly shaped, a second portion (46) that is concavely shaped and a third portion (48) that is again convexly shaped when going in the thickness direction of the substrate (20) from the at least one common local maximum (42) toward the middle region of the substrate (20). Furthermore, the present invention refers to a method of producing such a paper machine clothing.

3. 发明公开

EP3604669A1 A FABRIC FOR A WEB-PRODUCING MACHINE AND SUCH A MACHINE WITH A CORRESPONDING FABRIC 有权
公开(公告)号：EP3604669A1
公开(公告)日：2020-02-05
申请号：EP18186786.2
申请日：2018-08-01
申请人： Voith Patent GmbH
发明人： ALIAS, Anas , Karapayah, Izharraj , Köckritz Dr., Uwe
IPC分类号： D21F1/00
摘要： The present invention refers to a fabric (10) for a web-producing machine, such as a papermaker's machine for producing paper, tissue or board, comprising a machine-side and a paper-side and further comprising MD-yarns (12) and CD-yarns (14) interwoven with each other in a predetermined repeat pattern, wherein the MD-yarns (12) have a non-circular cross-section, and wherein a width-to-height aspect ratio of the MD-yarns (12) is greater than 10:1, preferably at least 11:1. Furthermore, the present invention refers to a web-producing machine, such as a papermaker's machine for producing paper, tissue or board, comprising a fabric (10) of one of the preceding claims, wherein the fabric (10) is preferably applied in a dryer section of the web-producing machine.

4. 发明公开

EP3597821A1 BESPANNUNG FÜR EINE MASCHINE ZUR HERSTELLUNG EINER FASERSTOFFBAHN 有权
公开(公告)号：EP3597821A1
公开(公告)日：2020-01-22
申请号：EP18183869.9
申请日：2018-07-17
申请人： Voith Patent GmbH
发明人： Straub, Michael , HOEHSL, Matthias , Köckritz Dr., Uwe
IPC分类号： D21F1/00
摘要： Die vorliegende Erfindung betrifft eine Bespannung für eine Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Papier-, Karton- oder Tissuebahn, umfassend ein Substrat (20) mit einer Oberseite (22), einer Unterseite (24), zwei Seitenrändern und einem Nutzbereich zwischen den zwei Seitenrändern, wobei der Nutzbereich eine Vielzahl von Durchgangskanälen (30) aufweist, welche die Oberseite (22) mit der Unterseite (24) des Substrats (20) verbinden. Dabei weist die Innenoberfläche (32) von wenigstens einem Durchgangskanal (30), vorzugsweise von der Mehrheit aller Durchgangskanäle (30), weiter bevorzugt von allen Durchgangskanälen (30) im Nutzbereich des Substrats (20) eine gemittelte Rautiefe Rz auf, welche größer als 4µm, vorzugsweise größer als 6µm, weiter bevorzugt größer als 8µm ist. Ferner betrifft die vorliegende Erfindung ein Verfahren zur Herstellung einer solchen Bespannung mittels eines Lasers.

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