The scraper system is a tool widely used in industrial production and processing, and has important functions and values.

When using the scraper system, you should choose the appropriate scraper system according to different application requirements, and perform correct installation, commissioning and maintenance to ensure the normal operation of the scraper system and the best scraping effect.

​

Then choosing a scraper system that suits you needs to consider many factors. Here are some suggestions:

Application scenarios and requirements:

Printing industry:

If it is used for ordinary flat printing and the ink scraping accuracy is not particularly high, then you can choose a conventional scraper system. The blade material can be stainless steel or carbon steel, and the pressure adjustment of the scraper can be relatively simple. For example, some small printing workshops' monochrome printing presses are suitable for this relatively basic scraper system.

For fine printing with high screen counts, such as high-end picture albums and packaging printing, it is necessary to select a scraper system with good ink uniformity and high precision. For example, a blade made of special alloy can ensure the flatness and sharpness of the blade and ensure the uniform transfer of ink; and there must be an accurate pressure adjustment device to make fine adjustments according to different printing materials and ink characteristics.

Coating industry:

In large-scale industrial coating production lines, it is necessary to select a scraper system that can complete the coating work quickly and efficiently. In this case, the width and length of the scraper should match the width of the production line to ensure that a larger coating area can be covered at one time to improve production efficiency.

If the coating is in the automotive, aerospace and other fields with extremely high requirements for the surface quality of the coating, the accuracy and stability of the scraper system are very critical. It is necessary to select a scraper system with excellent materials and exquisite manufacturing technology to ensure the uniformity and smoothness of the coating.

Filtration industry: In filtration equipment, the scraper system is used to remove impurities from the filter surface. At this time, the scraper system should be selected according to the type of filter, the characteristics of the filter medium, and the requirements of the filtration accuracy. For example, for fine filtration filters, it is necessary to select a scraper system whose scraper blade fits tightly to the filter surface and can effectively remove tiny impurities.

Material of scraper:

Carbon steel scraper: It has high hardness and strength, and the price is relatively low. It is suitable for some scenes with low requirements for scraper material and limited budget. However, carbon steel scraper has poor corrosion resistance and is easy to rust. It is not suitable for some environments with requirements for corrosion performance.

Stainless steel scraper: It has good corrosion resistance and wear resistance. It is suitable for various harsh working environments. The surface finish of stainless steel scraper is high, which can ensure the scraping effect and quality. It is often used in industries with high hygiene requirements such as food processing and pharmaceuticals.

Alloy scrapers: such as tungsten steel alloy, titanium alloy, etc., have higher hardness, strength and wear resistance, and are suitable for occasions with extremely high requirements for scraping effect and service life. However, alloy scrapers are more expensive and difficult to process.

Plastic scrapers: For some materials that cannot come into contact with metal, such as plastic film, rubber, etc., plastic scrapers can be selected. Plastic scrapers are softer in texture and will not damage the surface of the material, but their scraping ability is relatively weak, and are suitable for scenes with low requirements for scraping force.

Types and structures of scrapers:

Fixed scrapers: simple in structure, easy to install, suitable for some occasions where fixed scraping position and angle are required, but fixed scrapers cannot be adjusted according to changes in working conditions and have poor flexibility.

Oscillating scraper: It can swing within a certain range, can better adapt to the unevenness of the working surface, and improve the scraping effect. The oscillating scraper can also reduce the long-term contact between the scraper and the working surface, reduce the wear of the scraper, and extend the service life. It is often used for roller surface cleaning in the papermaking, printing and other industries.

Airbag scraper: The airbag provides pressure to make the scraper fit closely with the working surface, and can evenly apply the scraping force to improve the quality and efficiency of scraping. The pressure of the airbag scraper can be adjusted as needed. It is suitable for occasions with high requirements for scraping pressure, but the maintenance and maintenance of the airbag is relatively complicated.

Drive mode of scraper system:

Manual drive: Simple operation, low cost, suitable for some small equipment or occasions with low requirements for automation, but the manually driven scraper system has high labor intensity and low work efficiency, and it is difficult to ensure the uniformity and stability of scraping.

Electric drive: high degree of automation, can achieve precise control and adjustment, high work efficiency, good scraping uniformity and stability. Electric drive scraper system is suitable for large equipment or occasions with high scraping quality requirements, but it requires a stable power supply, and the maintenance and maintenance costs of the equipment are high.

Pneumatic drive: It has the advantages of fast response speed and convenient pressure adjustment. It is suitable for some occasions that require rapid switching of scraping states or high requirements for scraping pressure changes. However, pneumatic drive scraper system requires compressed air supply, and the maintenance and maintenance of pneumatic components also requires certain professional knowledge and skills.

Equipment compatibility:

Ensure that the selected scraper system can match the existing equipment, including installation size, connection method, etc. If the old equipment is modified or upgraded, special attention should be paid to the compatibility of the scraper system with the original equipment to avoid installation difficulties or malfunction.

Consider the ability of the scraper system to work in coordination with other peripheral equipment, such as whether it cooperates well with the ink supply system, filtration system, etc., to ensure the smooth progress of the entire production process.

Convenience of maintenance and servicing:

Choose a scraper system with a simple structure that is easy to disassemble and install so that it can be easily operated when maintenance and servicing are required. For example, the blades of some scraper systems can be quickly replaced, greatly shortening the maintenance time.

Understand the maintenance cycle and maintenance cost of the scraper system, and choose a scraper system with low maintenance cost and long service life. At the same time, consider whether the supplier can provide timely technical support and after-sales service to ensure the normal operation of the scraper system.