Planning and installation skills of protective film coating machine
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The heating pipes in the protective film coating machine are arranged in a concentric circle. One end of the heating pipes is installed on the drainage separation chamber of the header at the outlet of the coating machine, and the other end is installed on the tube plate of the breather head with a thermally extensible layout. Heat carriers such as steam and hot water enter the steam journal pipe and are distributed to the heating pipes through the header box, while the condensate is collected into the header box by the skewness of the coater and squeezed out by the steam journal pipe. The material is dried up in the protective film coater due to the lifting and stirring of the heating pipe, and is moved from the higher side to the lower side with the help of the skewness of the coater, and squeezed from the discharge hopper at the end.
The planning and installation of the protective film coating machine is similar to the general pattern, but the difference is that there is no board inside. During the process of moving the material from the inlet end to the outlet end, it is always in the bottom space, forming a solid material layer. After the hot air enters the intermediate pipe which does not roll with the cylinder from the end, it spurts out from the small hole of the branch pipe buried in the material layer at high speed and contacts the material violently.
Because the branch pipe is evenly diffused along the length of the middle pipe, while the branch pipe is closely distributed under the middle pipe in the circumferential direction. Therefore, this plan not only ensures the effective contact between hot air and materials, strengthens the heat and mass transfer process, but also the diffusion of gas in the length of the coater is more symmetrical than that of the blade type through-flow coater. The volumetric heat transfer coefficient of the vent tube coating machine is about twice that of the conventional type. Under the similar production talent, the body length is only 1/2 of the general formula.
During the operation of the protective film coating machine, the wear of the transmission part often occurs, such as the wear of the drying cylinder shaft head of the coating machine and the wear of the roll bearing chamber. The ancient repair techniques include overlaying, thermal spraying, brush plating, etc., but there are certain shortcomings: overlaying will make the surface of parts reach a very high temperature, causing deformation or cracks, and will also lead to shaft fracture in case of tension; The electroplating coating can not be too thick, and the use is also limited. The material has very good adhesion and compressive strength, which can be removed to repair the abrasion of the coating machine on site. At the same time, because it has the concession of metal shortage, it can absorb the strike vibration of equipment very well, so as to avoid secondary wear.
However, its functions vary according to different models and different manufacturers. The screen coater is equipped with a device that can clamp the screen frame on the vertical frame. The front and rear of the screen area are the coating mechanism of the degree, which is composed of the coating tank and the machine parts or pneumatic parts that control the angle and pressure of the coating tank.








