DT400 machine printing and copying paper process

In the packaging and parts printing process, often use copy paper printing. Since this ultra-thin paper weighs only 18g/m2, the paper is thin and soft, and it is usually manually fed by a low-speed printer, which not only has high labor intensity, but also has a large loss of printed products.

In view of the above situation, if technical improvements and innovations are used, the use of the DT400 type four-open automatic platform printer produced by the Guangzhou Construction Machinery Plant to print copy paper products will not only improve the printing efficiency, but also improve the product quality. The specific approach is as follows:

First of all, reduce the air volume. Since the air volume of the air pump valve is adjusted to the limit after the number “1” is reached, the air volume is still larger than the air blowing volume required for the printed copy paper, and the edge of the paper will be blown into a curl, and normal suction of paper cannot be achieved.
At this time, a hole must be drilled in the blow pipe to allow the blow system to leak air, which is to achieve a proper blow volume. Secondly, adjust the appropriate position of the suction paper bar so that the suction head is close to the paper plate. The edge of the suctioned edge of the paper is shorter, so that the edge of the paper can be prevented from sinking into a curved shape, so that normal feeding can be realized. Again, the rubber suction head on the forearm suction rod is peeled off, and an appropriate area of ​​self-adhesive paper seal is used. Hold each mouth of the mouthpiece and then use the needle to pierce a small hole in the mouthpiece seal to allow the mouthpiece to ventilate. In this way, the paper suction nozzle hole is reduced by about 2/3 than the original aluminum suction nozzle, which not only reduces the vacuum suction force, but also avoids the paper's thinness, flexibility, and ease of paper suction. Convergence to the mouth of the suction nozzle, resulting in uneven paper edges, affecting the problem of normal feeding. With the above method, the suctioned paper edge can be straightened, ensuring high-speed printing of the machine.

In addition, we must grasp the paper's knocking skills, which is an effective guarantee for high-speed printing. Before the copy paper is printed, it is necessary to knock the edge of the paper properly. The density of the paper creases should be larger. The distance between each crease is about 5mm, and the crease length of the knocker is about 6cm. Straight and firm, it is good for high-speed feeding and printing.