Once, when the company used a Heidelberg Speedmaster CD-6+LY printer with 250g/m2 paper jam, an emergency shutdown failure suddenly occurred. The CP window display failure was detected by the light oil color group's paper detection system. At first, it was thought that the electric eyes of the light oil group were covered by dust, and the electric eyes were wiped clean with a rag and restarted. The failure was still not eliminated.
The pedals of the various color groups were turned on, and it was found that the paper stopped at the junction of the sixth color group transfer cylinder and the light oil group impression cylinder. Check the force of the paper grippers on the impression cylinder and the transfer cylinder of the sixth color group and found that the gripping force of the grippers above the transfer cylinder of this color group is of different sizes. Some of them are unable to move with the special tools, even there are Several dead teeth. When the gripping force is not uniform, the delivery cylinder gripper does not normally catch the paper delivered by the impression cylinder gripper, so that the transfer cylinder and the subsequent cylinder of the impression cylinder cannot properly transfer the impression cylinder. , So that the light oil color group electric eye detection system detects the air Zhang failure. After washing all the toilet paper toothpaste, butter and retry the machine. Everything is normal.
The main reason for analyzing the above faults is that the equipment is not well maintained and the grippers do not pick up properly, resulting in an emergency shutdown.
In fact, if the gripping force of the impression cylinder changes, or the texture becomes blunt due to wear, problems such as paper slippage, misregistration, and ghosting may occur. Therefore, special attention must be paid to the maintenance of the impression cylinder gripper to keep it in good condition. In short, serious maintenance of the equipment not only can prolong the service life of the equipment, improve the utilization rate of the equipment, but also guarantee the product quality.
The pedals of the various color groups were turned on, and it was found that the paper stopped at the junction of the sixth color group transfer cylinder and the light oil group impression cylinder. Check the force of the paper grippers on the impression cylinder and the transfer cylinder of the sixth color group and found that the gripping force of the grippers above the transfer cylinder of this color group is of different sizes. Some of them are unable to move with the special tools, even there are Several dead teeth. When the gripping force is not uniform, the delivery cylinder gripper does not normally catch the paper delivered by the impression cylinder gripper, so that the transfer cylinder and the subsequent cylinder of the impression cylinder cannot properly transfer the impression cylinder. , So that the light oil color group electric eye detection system detects the air Zhang failure. After washing all the toilet paper toothpaste, butter and retry the machine. Everything is normal.
The main reason for analyzing the above faults is that the equipment is not well maintained and the grippers do not pick up properly, resulting in an emergency shutdown.
In fact, if the gripping force of the impression cylinder changes, or the texture becomes blunt due to wear, problems such as paper slippage, misregistration, and ghosting may occur. Therefore, special attention must be paid to the maintenance of the impression cylinder gripper to keep it in good condition. In short, serious maintenance of the equipment not only can prolong the service life of the equipment, improve the utilization rate of the equipment, but also guarantee the product quality.
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