Automatic carton erectors are machines used to form and assemble cardboard boxes. The main function of these machines is to take flat, folded cardboard boxes and automatically fold them into their upright, erected form. This process is often faster and more efficient than manually forming boxes, and it helps ensure consistent, accurate box dimensions and a neat, professional appearance.The machine then applies glue to the box seams to secure the structure, and the finished box is discharged from the machine ready for use.