A gluing device for automatically gluing and folding a gluable item. The gluing device includes a support structure upon which a gluing apparatus and a support plate assembly are mounted. The support plate is configured for supporting and aligning a gluable item for gluing and assembly by the gluing apparatus. The gluing apparatus includes a first clamp configured for selectively and securely holding a first portion of the gluable item on the support plate, a glue dispensing nozzle fluidly coupled to a glue supply, and a folding apparatus configured for folding the first portion of the gluable item onto a second portion of the gluable item after glue has been applied. A method for automatically gluing and folding a gluable item is also disclosed.