FIELD: food industry. SUBSTANCE: invention relates to high-speed folding device 1 for production of sealed packages in form of parallelepiped containing liquid food products from cushion-like bags. Device has continuous conveyor 21 for delivering packets along shaping path and number of folders 24, 25, 26 located along shaping path Heater 27 acts onto folded parts of each packet to melt them and weld foldable parts to corresponding walls of packet. Device 28 designed for final pressing down acts onto each packet to hold folded parts on corresponding walls in process of their cooling. Folders 24, 25, 26 and final pressing down device have some members 44, 50, 55, 58, 70, 71, 71 acting onto packets. These members have fixed constant size and they interact with packets owing to movement of conveyor 21. High capacity of folder is provided by movement of conveyor and interacting members without starting and stopping operations, i.e. owing to provision of continuous operation. EFFECT: compact design, simplified control owing to use one driven member which is conveyor. 16 cl, 8 dwg
