Medicine packaging apparatus

摘要

In a medicine packaging apparatus, a distance from a printing section to a heat sealing section is reduced without generating wrinkles on a package sheet. An unfolding guide 65 for unfolding and opening a package sheet 61 provided in a packaging unit 4 includes a main ridge 94 extending along with a crease of the package sheet 61 and a pair of unfolding guide surfaces 95a, 95b which are convex curved surfaces stretching from the main ridge 94. A contact start position 100a with the package sheet 61 of the unfolding guide surface 95a on the outer side of a curve in the conveying direction A relative to the main ridge 94 is located on an upstream side in the conveying direction A of the package sheet 61 of a contact start position 100b with the package sheet 61 of the unfolding guide surface 95b located on the inner side of the curve relative to the main ridge 94.

主权项

1. A medicine packaging apparatus, comprising:
a sheet supply section for unrolling and feeding an elongated package sheet from a roll on which the package sheet is wound, the package sheet previously being folded along its longitudinal direction into two portions; a printing section for making a print on the package sheet fed from the sheet supply section; a curvature guide for curving a conveying direction of the package sheet having passed the printing section; an unfolding guide arranged on a downstream side of the curvature guide in the conveying direction of the package sheet, the unfolding guide unfolding and opening the two-folded package sheet; a medicine introducing section arranged on the downstream side of the unfolding guide in the conveying direction of the package sheet, the medicine introducing section introducing a medicine into an opening of the package sheet; and a heat sealing section arranged on the downstream side of the medicine introducing section in the conveying direction of the package sheet, the heat sealing section sealing the package sheet so as to enclose the introduced medicine, wherein the unfolding guide comprises: a main ridge extending along with a crease of the package sheet; and a pair of unfolding guide surfaces which are convex curved surfaces extending from the main ridge and which respectively come into contact with the two portions of the folded package sheet, and wherein the unfolding guide surfaces have different outer peripheral shapes so that, as seen from a direction facing the main ridge, a contact start position of one of the unfolding guide surfaces, disposed on an outer side of a curve of the conveying direction by the curvature guide relative to the main ridge, is located on an upstream side in the conveying direction of the package sheet with respect to a contact start position of the other of the unfolding guide surfaces disposed on an inner side of the curve of the conveying direction by the curvature guide relative to the main ridge.