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What is the main reason for the failure of each part of rotary printing machine?

What is the main reason for the failure of each part of rotary printing machine?

Today to detail the main reasons for the failure of various parts of the rotary printing machine.

The open ground (bottom). The pattern on the printed fabric is partially exposed to the ground color. Causes: low wool efficiency, thick size, too fast speed, low pressure, too shallow overshading. If the shaft core is bent, it will cause color difference between left, middle and right.

Knife blade. Forming a single or multiple colored line on the surface of the fabric. The main reason is that the scraper has a small gap (the blade has not been polished for a long time, the surface of the cylinder is rough, etc.) or some impurities (fluff, undissolved substance in the color paste, etc.), which leads to the color paste on the cylinder not being scraped clean.

Jump cut. The horizontal band left on the fabric by the shimmer of the cylinder which is not scraped by the flashing of the blade. The main reason may be that the blade is installed too low, causing the blade to flash or the hammer pressure is insufficient, of course, the sleeve is installed improperly and the gear bite is tightened can also cause the jump knife.

Dragging. Drag a small part of the same or different color of the non-pattern under the pattern. The reason may be that 1. The blade is installed too high 2. The fabric cannot be absorbed in an instant due to the thick color paste, and 3 sleeves are not arranged reasonably in the pattern. Generally can use to adjust knife Angle, color paste thickness and add knife to solve.

Splash. A splash of color from the blade landed on the fabric. If the scraper is installed too low, the speed is too fast, the slurry is too thin, and the cylinder is horizontal, this defect is easy to occur. If the problem cannot be solved through adjustment, a piece of cloth can be put on the top of the cylinder to keep out. In addition, if there is a sand hole on the cylinder, the resulting color points are made in a regular circle, different from spatter.

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