The invention discloses a material receiving device which comprises a plurality of first tubular structure sections and a plurality of second tubular structure sections which are arranged at intervals. Each second tubular structure section is connected with two adjacent first tubular structure sections, and the diameter of each second tubular structure section is smaller than that of each first tubular structure section; a flexible positioning ring is arranged on the second tubular structure section; the flexible positioning ring is arranged to expand in the inflated state so as to limit a material collecting ring when the material collecting ring is arranged outside the flexible positioning ring in a sleeving mode. The plurality of first tubular structure sections and the plurality of second tubular structure sections with different diameters are arranged at intervals, so that the surface of a formed long pipe has a regular arrangement concave structure. During production, one of pre-cut thin film strips can be selected, and the position of the thin film strip is compared with the position of the flexible positioning ring fixed in the concave structure, so that the position calibration of all the thin film strips can be completed, the position calibration procedure is simplified, the working time is saved, and the working efficiency is improved.