Troubleshooting of coating machine, common faults of spraying machine and treatment methods

Furi intelligent coating machine provides you with professional services and high-quality coating machine coating uniformity in the transverse and longitudinal influencing factors are different, so its control measures are also different accordingly. In the specific implementation, it is not only related to the design and manufacture of the machine, but also related to the operation and process control. So what are the common failures that affect the coating process?

There are many factors that affect the quality of coating, such as man, machine, material, method and environment, but the basic factors are several conditions directly related to the coating process: coating substrate, adhesive, coating steel roller, rubber roller and laminating machine. 1) Coated substrate:

The main ones are the material, surface characteristics, thickness and uniformity, etc. 2) Adhesive: mainly its working viscosity, affinity and adhesion to the surface of the substrate.

3) Coated steel roller: it is not only the direct carrier of the adhesive, but also ...

The transmission part of the coater is worn.

During the operation of the coating machine, there are often problems of wear and tear of the transmission parts, such as the wear of the shaft head of the dryer cylinder of the coater, the wear of the bearing chamber of the paper roller, etc. Traditional repair methods include surfacing welding, thermal spraying, brush plating, etc., but there are certain drawbacks: surfacing welding will make the surface of the part reach a very high temperature, causing deformation or cracks, and in serious cases, it will also lead to the fracture of the shaft; The plating layer should not be too thick, and the contamination is severe, and the application is also limited.

The material has good adhesion and compressive strength, which can be dismantled and repaired on site. At the same time, because of its lack of metal concessionability, it can well absorb the impact vibration of the equipment and avoid secondary wear.

The concrete foundation of the coater is damaged.

Due to the influence of corrosion, aging, equipment vibration and other factors, the coating machine will also cause damage to the concrete base and other parts, resulting in the loosening of the bolts of the fastening equipment, which seriously affects the production. The traditional concrete pouring method will greatly prolong the repair time, and it is difficult for enterprises to accept.

Airless sprayer is a more commonly used spraying machine, it may have a variety of failures during use, and the common faults can be divided into three categories:

1. Equipment problems.

These include the motor not running, the equipment not suctioning, the flow rate is too low or no flow, the equipment cannot maintain pressure, the pressure is insufficient, the spray gun vibrates abnormally, and the paint is exposed from the oil filler.

2. Spray gun problem.

The spray gun has the problems of paint leakage, the spray gun can not stop discharging, and the spray gun does not discharge.

3. Spray amplitude problem.

There is a tailing phenomenon in the spray amplitude, the spray amplitude is uneven, the middle is too thick, the spray amplitude is crooked, and the spray amplitude jumps (large and small).

Coating wide ridge loose orange refers to the problem that during the operation of the coating machine, the deviation of the coating width exceeds the specified range, resulting in the inconsistency of the coating width. The coating width is generally divided into two situations: positive coating width refers to the coating width is too large, and negative coating width refers to the small coating width. Coating width issues can have an impact on product quality, such as a large coating width that can lead to excessive product consumableness, while a small coating width can lead to incomplete product coverage or substandard quality.

There are many reasons for coating width, mainly including the following aspects:1Improper debugging of the machine:

The machine debugging of the coating machine is one of the key factors affecting the coating width, such as the installation and adjustment of the machine is not in place, the roller placement deviation, the speed is too fast, and other factors will lead to the deviation of the coating width. 2.Material Issues:

Factors such as the quality, viscosity, and fluidity of the coating material will affect the stability of the coating width. 3.Environmental factors:

Factors such as ambient temperature and humidity can also affect the stability of the coating width. The following measures can be taken to address the problem of coating width:1

Strengthen machine debugging: adjust the roller height, speed, pressure and other factors to ensure the stability of the machine and the accuracy of the coating width. 2.

Control the quality of the material: Strictly control the quality and use of the coating material to ensure the viscosity and fluidity of the material. 3.

Environmental control: keep the ambient temperature, humidity and other factors of the coater stable to avoid the coating width problem caused by environmental factors. 4.

Timely maintenance: Regularly maintain and maintain the coating machine, find and eliminate problems in time, and ensure the normal operation of the coating machine and the stability of the coating width.