초록 ▼

A thickness measuring apparatus for non-metallic sheet-shaped bodies formed of rubber, plastic or the like which is simple in construction and small in size and can accurately measure the thickness of the non-metallic sheet-shaped body irrespective of high temperature change. It comprises a sheet po

A thickness measuring apparatus for non-metallic sheet-shaped bodies formed of rubber, plastic or the like which is simple in construction and small in size and can accurately measure the thickness of the non-metallic sheet-shaped body irrespective of high temperature change. It comprises a sheet position detecting mechanism including a light detector for receiving an image of the surface of the non-metallic sheet-shaped body and scanning the image and operative to detect the surface position of the sheet-shaped body on the basis of the output from the light detector. A roll position detecting mechanism detects that surface position of a metal roll which lies near the surface position of the sheet-shaped body to be detected. A processing mechanism calculates the thickness of the sheet-shaped body on the basis of the surface positions of the sheet-shaped body and the metal roll.

대표청구항 ▼

A thickness measuring apparatus for non-metallic sheet-shaped bodies, comprising a projector for illuminating the surface of a non-metallic sheet-shaped body engaged with and traveling across a metal roll, a sheet position detecting mechanism including a light detector for receiving an image of the

A thickness measuring apparatus for non-metallic sheet-shaped bodies, comprising a projector for illuminating the surface of a non-metallic sheet-shaped body engaged with and traveling across a metal roll, a sheet position detecting mechanism including a light detector for receiving an image of the surface of said non-metallic sheet-shaped body and scanning said image, said sheet position detecting mechanism operative to detect the surface position of said non-metallic sheet-shaped body on the basis of the output from said light detector, a roll position detecting mechanism for detecting that surface position of said metal roll which lies near the surface position of said non-metallic sheet-shaped body to be detected, and a processing mechanism for calculating the thickness of said non-metallic sheet-shaped body on the basis of the surface position of said non-metallic sheet-shaped body and of said metal roll as detected by said sheet position detecting mechanism and roll position detecting mechanism, respectively, and delivering said thickness as an output, said projector, sheet position detecting mechanism and roll position detecting mechanism being incorporated into a detection head which is movably mounted on guide shafts extending in a direction perpendicular to the traveling direction of said non-metallic sheet-shaped body, whereby the thickness of said non-metallic sheet-shaped body is measured while said sheet-shaped body travels across said metal roll.