The special sealing device for the pouch vertical packaging machine consists of a roller bracket, a longitudinal heat sealing roller, a transverse heat sealing roller, a cold transverse sealing roller, a roller platen, a special sliding bearing, a transmission gear bevel gear, a pressure hand wheel and a roller. The tube baffle is composed. Each roller shaft of this special sealing device is supported by a copper sleeve with self-lubricating performance, which makes it have good heat resistance, stable operation and long life. Both the hot longitudinal sealing roller and the cold horizontal sealing roller are designed with special patterns to make the sealing appearance of the packaging bag beautiful and high in strength. A steel embossing system is installed on the cold horizontal sealing roller, which can suppress the production date or batch number on the packaging bag.
