The computer-controlled three-side sealing, self-supporting and concave-convex buckle bag making machine produced by our company adopts PLC microcomputer control, double servo and Schneider frequency converter speed regulation, photoelectric monitoring and correction, pneumatic transmission and other technologies, which integrates mechanical and electrical functions, adopts full-automatic unwinding, cutting and tension adjustment control system, five-row bridge-type longitudinal sealing knife heat sealing and circulating water cooling adhesive device, and heating temperature Pc control, Various special-shaped bag auxiliary bag making devices can be added as required. The whole machine has the characteristics of high automation, good product quality and strong versatility.