Patent ID: 11904428
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A blade sharpness detection system for determining a sharpness of a blade, the blade sharpness detection system comprising:
an optical inspection unit operative to inspect blade sharpness optically; and
a blade positioning and guidance mechanism disposed to position and guide the blade in relation to the optical inspection unit;
a housing, wherein the optical inspection unit and the blade positioning and guidance mechanism are retained within a sharpness sensing volume within the housing;
a sharpness inspection slot in the housing in alignment with the optical inspection unit and the blade positioning and guidance mechanism;
first and second light-blocking bodies retained in opposition within the housing by the blade sharpness detection system to prevent passage of ambient light through the sharpness inspection slot and into the sharpness sensing volume, wherein the first and second light-blocking bodies are adapted to receive the blade therebetween;
a pivotable support structure within the housing, wherein the optical inspection unit and the blade positioning and guidance mechanism are retained by the pivotable support structure, wherein the pivotable support structure is pivotable about a pivot axis within the housing, and wherein the first and second light-blocking bodies are fixed to the pivotable support structure whereby the first and second light-blocking bodies pivot with the pivotable support structure within the housing wherein the first light-blocking body is coupled or mounted to the pivotable support structure to a first side of a centerline of the sharpness inspection slot, and wherein the second light-blocking body is coupled or mounted to the pivotable support structure to a second side of the centerline of the sharpness inspection slot;
whereby the blade can be positioned in relation to the optical inspection unit by use of the blade positioning and guidance mechanism, whereby the sharpness of the blade in a position localized to the optical inspection unit can be inspected by the optical inspection unit, and whereby effects of ambient light on sharpness inspection are prevented.