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Views: 13 Author: Site Editor Publish Time: 2023-09-27 Origin: Site
Roller coating is a popular coating method for flat workpiece painting. Good maintenance of the roller coating machines brings good coating quality and long life of the machines.
There are some important tips of operation of roller coaters:
1. Check and debug before use.
First of all, check whether the electrical line of the equipment is damaged, whether the connection is firm, whether the bearing part needs refueling and lubrication, whether the roller is damaged and deformed or attached to dust and impurities, check the cleanliness of the conveyor belt, feed pump and feed tank, and start the equipment for preheating when there is no abnormal condition.
Secondly, adjust the height of the roller, generally adjusted to 0.5mm lower than the workpiece or rotate the handwheel after contact with the workpiece to drop 1-3 turns.
Again, adjust the distance between the steel roller and the rubber roller, so that the two rollers touch slightly, start the paint pump to inject the paint between the two rollers, so that the roller is completely wet.
Finally, open the conveyor belt to see whether the conveyor belt runs off, whether the operation is smooth, slightly adjust the height of the roller, adjust the line speed and coating amount, check the effect of the first workpiece, and then start mass production.
2. Inspection during production.
In the production process, it is necessary to patrol the line on time, and pay attention to the conveyor belt to ensure that its running speed are stable and the rollers are moderate tightness; check the motor to ensure normal operation; check the paint to make sure the viscosity is right; keep environment clean to ensure that rollers, paints and workpieces are not contaminated by debris; check the amount of coating and coating effect on time to ensure coating effect consistency.
In addition, please note that in the case of roll coating at low temperature, the workpiece must be preheated to avoid the temperature difference between the workpiece and the paint is too large, resulting in poor paint film.
During the operation of the equipment, it is strictly prohibited to touch the running roller with your hand to prevent accidents, and avoid direct sunlight on the machine, otherwise the UV paint will dry on the rubber wheel and damage the rubber wheel.
3. Clean and maintain after use.
After production is completed, the steel roller, rubber roller, conveyor belt, container and recovery tank should be fully cleaned, and the solvent left on the roller needs to be wiped off with a clean cloth. To extend the life of the roller, please use special cleaning agent to wash machines instead of benzene solvents, to avoid deterioration or aging of the roller. After the cleaning is completed, release the rubber roller and the steel roller, so that the distance between the two wheels is 3-5mm.
