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AssigneeOPTIMA life science GmbH
InventorsNorbert Dylla, Johannes Jansen, Rolf Grotehusmann, Jürgen Gronemann, Philipp Winterer, Karl-Heinz Halder
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The invention relates to a device and to a method for transferring a functional layer, in particular a catalyst-coated membrane (2) and/or a gas diffusion layer for a membrane electrode assembly, onto a first material web, wherein: precuts (20) of a functional layer are transferred onto a moving counter surface with a first spacing (x1); the precuts (20) are supplied by means of a second material web (3) with a second spacing; the first spacing (x1) is greater than the second spacing (x2); the second material web (5), at least in a handover portion for carrying over a precut (20) moves synchronously with a conveying speed of the counter surface and is braked relative to the conveying speed to change the spacing; and the dispensing edge (6) in the first transport direction (1) relative to the second material web (5) is adjusted in order to create a braking and acceleration section for the precuts (20) moving discontinuously with the second material web (5).
An apparatus for transferring a functional layer, in particular a catalyst-coated membrane and/or a gas diffusion layer for a membrane electrode assembly, to a moving first material web, wherein the apparatus is configured to transfer blanks of the functional layer to a counter-face which is moved at a conveying speed with a first spacing, wherein the apparatus has a supply device for supplying the blanks on a second material web and a dispensing edge which extends transversely relative to the direction of the second material web and around which the second material web is guided in order to release the blanks while changing direction from a first transport direction to a second transport direction, wherein the blanks are arranged on the second material web with a second spacing, wherein the first spacing is greater than the second spacing, wherein the supply device is suitable for moving the second material web at least in a transfer section for transfer of a blank in a synchronous manner with respect to the conveying speed and to brake the second material web at least in the transfer section for a change of spacing relative to the conveying speed, and wherein the dispensing edge is supported so as to be able to be adjusted in the first transport direction relative to the second material web and can be adjusted by means of an adjustment device in order to provide a braking and acceleration path for the blanks which are moved in a discontinuous manner with the second material web.
A method for transferring a functional layer, in particular a catalyst-coated membrane and/or a gas diffusion layer for a membrane electrode assembly, onto a moving first material web, wherein blanks of the functional layer are transferred to a counter-face which is moved at a conveying speed with a first spacing, wherein the blanks are supplied to the functional layer by means of a second material web with a second spacing, wherein the first spacing is larger than the second spacing, wherein the second material web in order to release the blanks is guided around a dispensing edge which extends transversely relative to the direction of the second material web while changing direction from a first transport direction to a second transport direction, wherein the second material web at least in a transfer section for a transfer of a blank moves synchronously with respect to the conveying speed and to change spacing is braked relative to the conveying speed, and wherein the dispensing edge is adjusted in the first transport direction relative to the second material web in order to provide a braking and acceleration path for the blanks which are moved discontinuously with the second material web.
Dependencies are inferred from the claim text.