The paper-feeding nozzle is a hollow, straw-shaped straw used to convey the paper at the feeder. Its function is to suck the paper and then transfer it forward.
Below the delivery nozzle, the diameter is larger than the jacket, except for a large straight hole in the middle and 6 small inclined holes around it. There is also a slightly convex edge on the side to protect the inhalation and prevent it from spreading. . However, the delivery nozzle wears for a long time. Not only does the ribs wear out, but the entire suction surface is smooth and the edges are sharp. As a result, slippage occurs when the paper is sucked up, and the paper is not able to suck the paper so that the paper is skewed and the like is unfavorable, which is unfavorable for the work. The commonly used treatment method is to either put a leather ring on the delivery nozzle, or suck the surface of the suction nozzle with sand, make it rough, increase friction resistance, and no longer slip. Although both methods can be effective, they have their own drawbacks. First, the apron is put on, and when the 52g/m2 paper is printed, the paper is easily broken. If the paper is uneven, it is also easy to make the paper go obliquely. The second is that the use of sand buffs is very short, but unfortunately they have to replace the new delivery nozzle.
However, I have found that each old feed suction has certain processing conditions and opportunities for re-use. And it is very simple to process, the method is to find the mechanic to use the lathe to transfer the paper suction nozzle inside the car flat, leaving a collar on the edge. The paper delivery nozzle thus processed is as durable as the new one.
