SED-600SDJ-B — آلة تصنيع أكياس بلاستيكية
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SED-600SDJ-B multi-function high-speed computer-controlled bag-making machine for self-stand zipper bags (three-side seal, single zipper, single self-stand bag, single feed). Suitable for multi-layer composite films incl
مبدأ العمل
Roll-fed composite film unwinds under constant-tension control(magnetic-powder brake, pneumatic swing roller, encoder feedback) from a horizontal air-shaft unwinder. EPC correction guides the web through longitudinal seal stations(4 groups heat + 4 groups cool), zipper ultrasonic welding station, and transverse seal stations(3 groups heat + 2 groups cool) driven by a crank-rocker four-bar mechanism. Three Panasonic servo motors provide synchronized traction. An intermediate pneumatic floating tension roller with dynamic compensation stabilizes web tension. Automatic length control uses photocell tracking(±0.5 mm accuracy). A multi-feed module(2–6×) handles bags exceeding 400 mm length. Finished bags are conveyed by an O-type horizontal belt conveyor.