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Maintenance and accident handling of blank rolling machine

August 13, 2021

The embryo rolling machine is one of the key equipment of the edible oil processing plant, with high price, heavy body and high repair cost. Therefore, in the production process, careful maintenance is necessary to extend the service life of the rolling mill, which is of great significance for increasing efficiency and reducing costs.


Rolling machine


After long-term operation of the blank rolling machine, the two sides of the pressure roller surface are often worn out, which affects the effect of the blank rolling. Therefore, you should arrange for the necessary time every week to grind both sides of the roll with a grinding wheel or other methods. 

If the oil is not cleaned well, impurities such as stones and small iron pieces will enter the rolling mill, which will often cause pitting of the roll surface, resulting in pits on the smooth roll surface, and uneven thickness of the rolled raw material, which affects the oil output. At this time, the pressure roller must be replaced, and the pressure roller with pits will be flattened again. The area hardness of the pressure roller increases, and turning is more difficult.

If the embryo rolling mill does not eat or eat less material, it will seriously affect the efficiency of the rolling mill. The large vibration of the rolling mill is an important reason for the pressure roll not to eat. The jittering pressure roller continuously gives the oil an upward force, so that the oil is thrown up and down by the pressure roller, and always jumps up and down between the two pressure rollers. When the pressure roller does not eat the material, the reason should be found out, and the smooth surface of the roller cannot be pitted artificially to increase the friction and make it eat the material.

Broken shaft and roll edge. In order to ensure the requirements of the rolling blank, the spring pressure must be increased when the unevenness of the roll gradually increases. In this way, the bearing is always subjected to a radial force. Once the material flow is uneven, it will enter hard objects such as iron and stones, causing the two pressure rollers to collide. The instantaneous impact force is quite large. As a result of repeated impacts, if the fatigue limit of the shaft is exceeded, the shaft will be broken or the edges will fall off. Therefore, it should be emphasized that the spring for adjusting the rolling distance during operation should not be too tight, should not enter the ironware, the material flow should be uniform, and the material should not be interrupted. These are reasonable measures to prevent such accidents.