Guide rail device for end face folder of transparent paper of barrel

The utility model relates to a guide rail device for an end face folder of a transparent paper of a barrel. The guide rail device comprises a guide rail, wherein the guide rail is provided with an upper guide rail and a lower guide rail; a support is mounted on the guide rail; and the guide rail is connected with the head end of a connecting rack by the support. A swing rod mechanism can make movement of sliding, screw-down, rail change, and stop of sliding, so that the folder is driven to fold the end face of the transparent paper of the barrel, and the guide rail device has the advantages of reasonable structure, stable mechanical properties and high precision.