US 12,186,853 B2
Hydraulic arrangement for an apparatus for deblocking workpieces, in particular eyeglass lenses, from associated block pieces
Holger Schäfer, Weilmünster (DE); Steffen Wallendorf, Wetzlar-Dutenhofen (DE); Martin Lautz, Wetzlar-Nauborn (DE); and Gregor Pavel, Hüttenberg (DE)
Assigned to Satisloh AG, Baar (CH)
Appl. No. 17/761,137
Filed by Satisloh AG, Baar (CH)
PCT Filed Sep. 7, 2020, PCT No. PCT/EP2020/000149
§ 371(c)(1), (2) Date Mar. 16, 2022,
PCT Pub. No. WO2021/052613, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10 2019 006 505.0 (DE), filed on Sep. 16, 2019.
Prior Publication US 2023/0347467 A1, Nov. 2, 2023
Int. Cl. B08B 3/02 (2006.01); B08B 11/00 (2006.01); B24B 9/14 (2006.01); B24B 13/005 (2006.01); B26D 7/00 (2006.01); B28D 7/00 (2006.01); B28D 7/04 (2006.01); F04B 19/04 (2006.01); F04B 23/02 (2006.01); F04B 23/06 (2006.01); F04B 49/20 (2006.01); F04B 49/22 (2006.01); F15B 11/17 (2006.01)
CPC B24B 13/0057 (2013.01) [B08B 3/02 (2013.01); B08B 11/00 (2013.01); B24B 9/146 (2013.01); B26D 7/00 (2013.01); B28D 7/00 (2013.01); B28D 7/04 (2013.01); F04B 19/04 (2013.01); F04B 23/06 (2013.01); F04B 49/20 (2013.01); F04B 49/22 (2013.01); F15B 11/17 (2013.01); B08B 2203/0223 (2013.01); B08B 2203/027 (2013.01); Y02P 80/10 (2015.11)] 24 Claims
OG exemplary drawing
 
1. A hydraulic arrangement (HA) for an apparatus (AV) for deblocking optical workpieces (L) from associated block pieces (B), comprising
a nozzle arrangement (DA) for delivery of high-pressure pressure medium jets for deblocking the workpiece (L) from the associated block piece (B) at a first pressure and for cleaning the deblocked workpiece (L) and/or the block piece (B) at at least one second pressure different from the first pressure, and
a pump device (PE) which separates a low-pressure section (NDA) from a high-pressure section (HDA) of the hydraulic arrangement (HA) and serves the purpose of loading the pressure medium, which is fed by way of the low-pressure section (NDA), in defined manner with pressure and of conveying it under pressure to the nozzle arrangement (DA) in the high-pressure section (HDA),
characterized in that the pump device (PE) comprises a first high-pressure pump (HP1) and a second high-pressure pump (HP2), at least one of said first and second high-pressure pumps (HP1, HP2) being drivable by an associated rotary drive (SM1, SM2), the rotational speed of which is variable for setting the first pressure of the second pressure, wherein at least the first pressure can be generated by the first high-pressure pump (HP1) and at least the second pressure can be generated by the second high-pressure pump (HP2), and
wherein a respective servomoter (SM1, SM2) is associated as rotary drive with each of the high-pressure pumps (HP1, HP2) of the pump device (PE) and is drivingly connected with the respective high-pressure pump (HP1, HP2) by way of an angle transmission (WG1, WG2).