Problems to pay attention to when printing thin paper

1. Paper feeding section

The paper stack mouth is about 1cm lower than the top of the front teeth, the loose paper mouthpiece is adjusted to about 10 sheets on the surface of the blowing paper pile, the air volume is adjusted to be smaller, the paper suction nozzle is about 8mm from the paper surface, and the nozzle rubber is The circle should be replaced by a thin circle with a small diameter. Adjust the presser foot lever to increase the distance between the stack of paper and the suction nozzle of the paper to avoid sucking double sheets. The feed nozzle is about 8mm from the paper surface. Adjust the pressure of the paper press roller. The press roller should be in the middle and parallel to the feeding belt and keep the pressure consistent. Reduce side pressure to avoid thin paper supply.

2. Knock paper

Thin paper is soft and breathable, which makes it difficult to move paper. First of all, knocking at the mouth into a fan-like shape, the lateral rule at the knock-shaped, the length of the mark can be about 20cm, the knocking force should be heavier, dragging a little at a small mark, a small interval to increase its stress. Due to the presence of the knock marks, the paper on the pile paper table should not be too large, so as to avoid unevenness of the paper pile and difficulty in feeding paper.

3. Embossed part

When printing thin paper, remove the normal paper from the platen roller and replace it with the thick pad paper of the printed thin paper. At the same time, the blanket cylinder pad is filled with the same thin paper. At this time, the pressure between the plate and the ink roller becomes smaller. Reduced ink transfer. The pressure between the printing plate and the eraser, the eraser, and the impression cylinder is slightly increased, which facilitates the transfer of the graphic.

4. Tighten the teeth and collect the paper

When the paper (encyclopedia) enters the imprint, it is necessary to tighten the teeth on the tooth row, roller, and the delivery chain to increase the bite force and avoid the thin paper, because of its thinness, softness, low density, and low paper pull force, stick it on the eraser. Cloth. Appropriately reduce the amount of paper blowing, avoid floating paper, and ensure that paper is collected.