Patent ID: 11938695
Assignee: ESSILOR INTERNATIONAL
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A method of removing a tape around a perimeter of a lens-mold-assembly, the method comprising:
rotating the lens-mold-assembly held between coaxially aligned first and second rotary parts of a lens-mold-assembly-rotation mechanism of a de-taping machine, wherein the first and second rotary parts are axially spaced from each other along a common axis for holding the lens-mold-assembly therebetween, and wherein the first and second rotary parts are rotatable about the common axis to rotate the lens-mold-assembly;
varying a rotational speed of the first and second rotary parts based on a first detection signal from the proximity sensing arrangement, wherein the proximity sensing arrangement is disposed on a first jaw of a tape gripping mechanism of the de-taping machine, wherein the lens-mold-assembly is aligned to the tape gripping mechanism, wherein the first jaw of the tape gripping mechanism is disposed at a radial position from the common axis, wherein the proximity sensing arrangement is configured to generate the first detection signal when a free end of the tape around the perimeter of the lens-mold-assembly is detected at a pre-determined distance from the first jaw; and
stopping the first and second rotary parts from rotating the lens-mold-assembly and move a second jaw of the tape gripping mechanism of the de-taping machine towards the first jaw to perform a clamping action for clamping the free end of the tape based on a second detection signal from a contact sensing arrangement, wherein the second jaw is movable relative to the first jaw to perform the clamping action, wherein the contact sensing arrangement is disposed on a clamping surface of the first jaw and configured to generate the second detection signal when the free end of the tape is in contact with the clamping surface of the first jaw.