Automatic sealing device for cartons

The invention relates to an automatic sealing device for cartons. The automatic sealing device for the cartons comprises a machine frame, a worktable, a conveying mechanism, a centering carton closingmechanism and a sealing mechanism, wherein the conveying mechanism, the centering carton closing mechanism and the sealing mechanism are arranged on the machine frame, and the worktable is arranged on one side of the machine frame. The automatic sealing device for the cartons is reasonable in design. By arranging the two-layer conveying mechanism, the space of a conveying belt is reasonably used,control is convenient, and the production cost is saved. The cartons are accurately pushed into the center through the centering carton closing mechanism , and the subsequent step of adhesive tape pasting is guaranteed. A moment sensor is used for detecting the realizing position in real time, so that the accuracy of centering and positioning of the cartons is further improved. The work of automatic sealing is realized th