In a structure that exfoliation is performed in the pitch sending of a carrier tape (15) by making a cover tape exfoliating mechanism (50) intervene between joining surfaces of a base tape (15a) and a cover tape (15e), in an exfoliation start position where an exfoliating knife tip (51f) of an acuminate shape, which is provided at a front end, starts to exfoliate the joining surface, a lower guide member (40), which guides the carrier tape (15) from below, is pushed up from the bottom side by a lever member (44), and when the carrier tape (15) is installed, the carrier tape (15) is pushed up together with the lower guide member (40) to make the exfoliating knife tip (51f) in the exfoliation start position to be aligned to the joining surfaces and enter between the joining surfaces.