The paint roller coating method is generally used for toy tinplate, silicon steel sheets and other unformed metal sheets, as well as flat surfaces such as artificial leather and plastic films.
The roller coating machine is generally composed of two or more transmission rollers, which are installed on the upper part of the paint container. The outer circle of the roller shaft is pressed with a layer of static solvent rubber. The gap between the two rollers can be adjusted according to the thickness of the plate to be painted. Adjustment. At least 1/3-1/2 of the outer diameter of the roller is in contact with the oil feeder, and the contact surface with the paint can be adjusted according to the thickness requirements, so that the roller will be covered with paint when it rotates. Send the plate to be painted into the roller paint machine by hand or with a roller, and the roller will roll the oil on the surface of the plate. Single-sided paint rolling just uses double rollers, and rolling paint uses double rollers. The painted boards are sent to the drying tunnel through the conveyor belt. Using the infrared bulbs arranged symmetrically up and down, they are baked all the way along the length of the assembly line, and they are baked from the other end. If they need to be baked again, they can be sent to another oven. Room to continue baking, until the royal bottom dry.
It has the advantages of using high-viscosity paint, high solid content, thick paint film, good quality, and saving thinner, which is beneficial to mechanized and automatic production. High production efficiency. Labor saving, low labor intensity, and conducive to labor protection.
The disadvantage is that it can only be used for plane coating, and it is not economically economical to roll coating a small number of plates.
