US 12,257,824 B2
Screen printing device and method for screen printing onto substrates
Franz Plachy, Brackenheim (DE); Lukas Sänger, Backnang (DE); and Rainer Voigt, Freiburg (DE)
Assigned to EKRA AUTOMATISIERUNGSSYSTEME GMBH, Bönnigheim (DE)
Appl. No. 18/568,419
Filed by EKRA Automatisierungssysteme GmbH, Bönnigheim (DE)
PCT Filed Jun. 10, 2022, PCT No. PCT/EP2022/065877
§ 371(c)(1), (2) Date Dec. 8, 2023,
PCT Pub. No. WO2022/258823, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 10 2021 205 984.8 (DE), filed on Jun. 11, 2021.
Prior Publication US 2024/0269978 A1, Aug. 15, 2024
Int. Cl. B41F 15/08 (2006.01); B41F 15/14 (2006.01); B41F 15/20 (2006.01); B41F 15/26 (2006.01); B41F 15/36 (2006.01); B41F 15/46 (2006.01); B41F 33/00 (2006.01)
CPC B41F 33/0081 (2013.01) [B41F 15/20 (2013.01); B41F 15/26 (2013.01); B41F 15/36 (2013.01); B41F 15/46 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A printing device for printing onto substrates, comprising:
a squeegee means;
at least one printing table;
wherein the squeegee means is arranged above the at least one printing table;
the printing table further comprising several conveying means which are arranged side by side and in parallel to one another and each having at least one printing nest such that a substrate can be transported in each case to each printing nest below the squeegee means and out of the printing nest after a printing process has taken place;
wherein the squeegee means further comprises a single printing screen which extends over all of the printing nests and which has a printing pattern for each printing nest, and wherein the squeegee means has at least one squeegee which can be moved over each printing nest in order to print successively onto the substrates which are arranged in the printing nests;
the printing device further comprising:
at least one sensor means for detecting the position and/or alignment of a substrate arranged in a respective printing nest being assigned to each printing nest, and
at least one controllable adjusting means for aligning and/or positioning the respective substrate and the printing screen to one another being assigned to the printing table and/or the squeegee means,
wherein a correcting of the alignment and/or position of the respective substrate and of the printing screen to one another takes place in that period of time, in which the squeegee is moved from a substrate, which has been printed onto previously, to a substrate, which is to be printed onto.