【正文】
it, and first the cardboard with tongue paper on two sides is bended, then the tongue paper is folded and glued, finally the cardboard on the other two sides is folded, meanwhile stuck to the tongue paper glued on the surfa ce. After formed, the carton will return to the initial position under the spring force of the punch. The ejection of pact process is finished while the following cardboard is being conveyed. A long doublescrew bolt lined in a carton in the motion cycle of each institute is used to adjust the distance between the vertical and horizontal bending cardboard through the coordination of the relationship between motion and time in different parts. A carton former process is divided into several time stages, mainly through the already designed type.