US 12,304,117 B2
Deflashing machine and method of deflashing a lens-mold-assembly
Francois Olivieri, Charenton-le-pont (FR)
Assigned to Essilor International, Charenton-le-pont (FR)
Appl. No. 18/017,321
Filed by Essilor International, Charenton-le-pont (FR)
PCT Filed Jul. 23, 2021, PCT No. PCT/EP2021/070693
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2022/018267, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 20305855 (EP), filed on Jul. 24, 2020.
Prior Publication US 2023/0256656 A1, Aug. 17, 2023
Int. Cl. B29C 37/02 (2006.01); B29D 11/00 (2006.01); B29L 11/00 (2006.01)
CPC B29C 37/02 (2013.01) [B29D 11/00413 (2013.01); B29L 2011/0016 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A deflashing machine for removing a flash on a lens-mold-assembly after molding, the machine comprising:
a lens-mold-assembly-rotation mechanism having a first rotary part and a second rotary part coaxially aligned, the first rotary part and the second rotary part being operable to be axially spaced from each other along a common axis for holding the lens-mold-assembly therebetween, each of the first rotary part and the second rotary part being rotatable about the common axis; and
a deflashing mechanism comprising:
a first blade disposed at a first radial position from the common axis, the first blade having a trimming edge parallel to the common axis for engaging a circumferential surface of the lens-mold-assembly held between the first rotary part and the second rotary part, and
a second blade disposed at a second radial position from the common axis, the second blade having a trimming edge radially aligned with respect to the common axis, wherein the trimming edge of the second blade is for engaging a convex surface or a concave surface of the lens-mold-assembly held between the first rotary part and the second rotary part.