Research on Pneumatic Controlling Mechanism of Flying Splicer of Web-Fed Offset Presses

摘要

Flying splicer is a key component of web-fed offset presses for automatically replacing the exhausting web roll with a new one without stopping the machine. The composition and working principle of pneumatic controlling mechanism for driving the flying splicer was analyzed according to the processing requirements of automatic web alternation. By using the software FluidSim, the pneumatic sequential operation controlling circuitry with multi-cylinders for driving the flying splicer was designed, in which the air cylinders cooperates to accelerate the new reel to the circumferential velocity of the expiring web, paste the adhesive end of the new reel with the expiring web, and cut the remaining piece of expired web off. A system scheme and designing method of the pneumatic controlling system suitable for automatic web roll change on high speed offset printing presses was brought out.