FIELD: food industry; packing facilities. SUBSTANCE: proposed packing device 1 has first and second chain conveyors provided with some clamps and some counter-clamps engaging with tube to compress it for heat welding is sequential cross sections by means of induction heating elements of clamps. Each counter-clamp 13 has pressure strip 35 installed on main housing 20 of counter-clamp. Springs 75 placed between housing and pressure strip provide pressing force on packing material. EFFECT: provision of accurate and reliable control of clamping pressure applied to packing material by clamps and counter- clamps to form welding seam. 7 cl, 7 dwg
