# US 2021/0078281 A1 · Method and device for rotary blind embossing of a substrate, a female die and/or a male die for use in a device, and a method for producing a female die and/or a male die > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0078281 A1 - Document ID: US20210078281A1 - Status: Published application - Kind: A1 - Application number: 16/956,338 - Filed: 2019-01-28 - Published: 2021-03-18 - Earliest claimed: 2018-02-06 - Assignees: Hinderer & Muhlich KG; Koenig & Bauer Aktiengesellschaft - Applicants: Hinderer + Mühlich GmbH & Co. KG; Koenig & Bauer AG - Inventors: René SCHWEIKHARDT; Thomas LÖCHNER; Johannes NAUMANN; Johannes HELBIG - Web page: https://patentgrep.com/patent/US20210078281A1 ## CPC - B31F 1/07: Embossing {, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles}({B31F1/128 takes precedence;} corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36) - B41F 19/02: with embossing - B41F 19/06: Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold" - B41F 19/062: {Presses of the rotary type} - B44B 5/0009: {Rotating embossing tools} - B44B 5/0047: {by rolling (B44B5/0061 takes precedence)} - B44B 5/026: {Dies (B44B5/028 takes precedence)} - B31F 2201/0738: Cross sectional profile of the embossments - B31F 2201/0743: having a matching profile - B31F 2201/0776: Exchanging embossing tools - B31F: MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making layered products not composed wholly of paper or cardboard B32B) - B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L) - B44B: MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING (processes for producing decorative effects B44C; embossing leather C14B) ## Abstract A method for the rotary blind embossing of a substrate, a device for the rotary blind embossing of a substrate, a female die and/or a male die for use in a device, and to a method for producing a female die and/or a male die. The method for the rotary blind embossing of a substrate in a work station including an embossing roller and a counter-pressure roller includes the following steps: a) preparing the substrate; b) blind embossing the substrate by means of at least one female die provided on the embossing roller and at least one male die provided on the counter-pressure roller. The device for the rotary blind embossing of a substrate has a work station having an embossing roller and a counter-pressure roller, at least one female die being provided on the embossing roller and at least one male die being provided on the counter-pressure roller. ## Claims ### Claim 1 A method for rotary blind embossing of a substrate in a work station comprising an embossing roller and a counter-pressure roller, wherein the method comprises the following steps: providing the substrate; blind embossing the substrate by means of at least one female die arranged on the embossing roller and at least one male die arranged on the counter-pressure roller; providing a positioning aid comprising at least one window region; arranging the positioning aid on the embossing roller and/or the counter-pressure roller; and arranging the at least one female die and/or male die in the at least one window region of the positioning aid, wherein, when the at least one female die and/or male die is arranged in the at least one window region of the positioning aid, the at least one female die and/or male die is adjusted by means of an adjusting aid in the at least one window region, and wherein the adjusting aid is arranged such that the at least one female die and/or male die is movable at least in one direction. ### Claim 2 (canceled) ### Claim 3 (canceled) ### Claim 4 (depends on 1) The method according to claim 1, wherein the method further comprises the following steps, fixing the at least one female die on the embossing roller and/or the at least one male die on the counter-pressure roller by means of a fixing device. ### Claim 5 (canceled) ### Claim 6 (canceled) ### Claim 7 (canceled) ### Claim 8 (depends on 1) The method according to claim 1, wherein, when the at least one female die and/or male die is arranged in the at least one window region of the positioning aid, the at least one female die and/or male die is fastened by means of a fastening device in the at least window region. ### Claim 9 (depends on 1) The method according to claim 1, wherein the at least one female die and/or male die is deformed, before being arranged in the at least one window region of the positioning aid, such that the at least one female die and/or male die has a curvature which substantially corresponds to the diameter of the embossing roller and/or the diameter of the counter-pressure roller. ### Claim 10 (depends on 1) The method according to claim 1, wherein the positioning aid is clamped onto the embossing roller and/or the counter-pressure roller such that the positioning aid has a curvature which substantially corresponds to the diameter of the embossing roller and/or the diameter of the counter-pressure roller. ### Claim 11 (canceled) ### Claim 12 (depends on 1) The method according to claim 1, wherein the at least one female die is magnetically attached to the embossing roller and/or the at least one male die is magnetically attached to the counter-pressure roller. ### Claim 13 (depends on 1) The method according to claim 1, wherein the at least one female die is arranged on the embossing roller and the at least one male die is arranged on the counter-pressure roller such that the retention force with which the at least one female die is arranged on the embossing roller is higher, is preferably than the retention force with which the at least one male die is arranged on the counter-pressure roller. ### Claim 14 (depends on 1) The method according to claim 1, wherein the embossing roller and the counter-pressure roller are driven in opposite directions to each other with corresponding rotational speeds. ### Claim 15 (depends on 14) The method according to claim 14, wherein the at least one female die and the at least one male die engage with each other on every revolution such that the substrate located between the at least one female die and the at least one male die is embossed. ### Claim 16 (depends on 15) The method according to claim 15, wherein the substrate is embossed such that the deviations between the embossings of each revolution are less than 2% percent. ### Claim 17 (canceled) ### Claim 18 (depends on 1) The method according to claim 1, wherein the method further comprises at least one of the following steps, which are performed in one or more further work stations: printing the substrate; severing the substrate; grooving and/or folding the substrate. ### Claim 19 (canceled) ### Claim 20 (depends on 1) The method according to claim 1, wherein the substrate is provided in sheets. ### Claim 21 (depends on 20) The method according to claim 20, wherein the deviations between the embossings on the sheets of the substrate provided in sheets are less than 2% percent. ### Claim 22 (depends on 20) The method according to claim 20, wherein more than 8000 sheets per hour of the substrate provided in sheets are processed by means of the method. ### Claim 23 A device for rotary blind embossing of a substrate, wherein the device comprises a work station which comprises an embossing roller and a counter-pressure roller, and wherein at least one female die is arranged on the embossing roller and at least one male die is arranged on the counter-pressure roller, and wherein the device has a positioning aid with at least one window region, wherein the positioning aid is arranged on the embossing roller and/or the counter-pressure roller and the at least one female die and/or male die is arranged in the at least one window region of the positioning aid, and wherein the at least one female die and/or male die can be adjusted by means of an adjusting aid in the at least one window region of the positioning aid, and wherein the adjusting aid is arranged such that the at least one female die and/or male die is movable at least in one direction. ### Claim 24 (canceled) ### Claim 25 (depends on 23) The device according to claim 23, wherein the at least one female die is introduced as at least one elevation and/or recess into the surface of an embossing cylinder which is arranged on the embossing roller and/or wherein the at least one male die is introduced as at least one elevation and/or recess into the surface of a counter-pressure cylinder which is arranged on the counter-pressure roller. ### Claim 26 (canceled) ### Claim 27 (canceled) ### Claim 28 (canceled) ### Claim 29 (canceled) ### Claim 30 (canceled) ### Claim 31 (depends on 23) The device according to claim 23, wherein the positioning aid comprises metals. ### Claim 32 (depends on 23) The device according to claim 23, wherein the positioning aid is formed magnetic. ### Claim 33 (canceled) ### Claim 34 (depends on 23) The device according to claim 23, wherein the positioning aid has a thickness that is increased compared with the remaining thickness of the positioning aid in a region around the at least one window region. ### Claim 35 (canceled) ### Claim 36 (depends on 23) The device according to claim 23, wherein the positioning aid has a width of at least 250 mm, and a length of at least 500 mm, and/or wherein the at least one window region has a width of at least 5 mm, and a length of at least 10 mm. ### Claim 37 (canceled) ### Claim 38 (canceled) ### Claim 39 (canceled) ### Claim 40 (canceled) ### Claim 41 (canceled) ### Claim 42 (canceled) ### Claim 43 (canceled) ### Claim 44 (canceled) ### Claim 45 (depends on 23) The device according to claim 23, wherein the at least one female die is arranged on the embossing roller and the at least one male die is arranged on the counter-pressure roller such that the retention force with which the at least one female die is arranged on the embossing roller is higher, than the retention force with which the at least one male die is arranged on the counter-pressure roller. ### Claim 46 (canceled) ### Claim 47 (canceled) ### Claim 48 (depends on 23) The device according to claim 23, wherein the ratio of the diameter of the embossing roller to the diameter of the counter-pressure roller 1 to 2. ### Claim 49 (depends on 23) The device according to claim 23, wherein the device further comprises one or more further work stations for printing the substrate and/or for severing the substrate and/or for grooving and/or folding the substrate. ### Claim 50 (canceled) ### Claim 51 (canceled) ### Claim 52 (canceled) ### Claim 53 (canceled) ### Claim 54 (canceled) ### Claim 55 (canceled) ### Claim 56 (canceled) ### Claim 57 (canceled) ### Claim 58 (canceled) ### Claim 59 (canceled) ### Claim 60 (canceled) ### Claim 61 (canceled) ### Claim 62 (canceled) ### Claim 63 (canceled) ### Claim 64 (canceled) ### Claim 65 (canceled) ### Claim 66 (canceled) ### Claim 67 (canceled) ### Claim 68 (canceled)