Coating adhesive force testing device

The utility model discloses a coating adhesive force testing device which comprises a base used for fixing a coating plate and a sliding support slidably mounted on the base, and further comprises a suspension guide rod fixedly connected to the sliding support and a pasting assembly slidably mounted on the suspension guide rod. The pasting assembly comprises a sliding sleeve arranged on the suspension guide rod in a sliding and sleeving mode in the longitudinal direction, a pressing roller support fixedly connected to the lower end of the sliding sleeve, a pressing roller rotationally installed on the pressing roller support and a pressing ring detachably installed on the sliding sleeve, and the lower end of the sliding sleeve is fixedly connected with the center of the upper end face of the pressing roller support. The pressing ring is of a circular structure formed by two semicircular rings in a butt joint mode, and the sliding sleeve is sleeved with the pressing ring in a sliding mode. According to the coa