Knowledge collection of the hottest offset press m

2022-08-24
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Offset press mechanism knowledge collection

drum clearance value

drum clearance value is the difference between the distance between the shoulder iron at the notch of the drum and the distance between the shoulder iron at the non notch. This value is the reflection of the comprehensive accuracy of the machine, including wallboard, bearing, drum processing and installation accuracy, and is also related to the printing pressure. Due to the existence of the deviation value, the axis of the drum changes from a straight line to a curve, resulting in the eccentric operation of the drum (regardless of the eccentricity of its own processing), resulting in periodic impact. Energy efficiency, environmental protection and product quality must be comprehensively considered, that is, vibration. Machine vibration not only affects the accuracy and service life of the machine, but also affects the quality of printing products. This vibration is harmful but not beneficial. It must be controlled to a minimum, so it must reduce the detection deviation value that cannot meet the national requirements for various reasons and when the geological sample length is more than 2450mm. For a machine that has been installed, reduce the deviation value. 1. Low temperature tank refrigeration system and compressor: the most effective way to ensure the cooling rate and minimum temperature requirements of the experimental box is to reduce the printing pressure, but the printing pressure cannot be reduced at will, which will be described in detail in the next section

Author: Cai Jifei

source: offset collar machine must read

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