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中文简体In the production process of non-woven wet-laid web forming machines, the web-forming mechanism plays a vital role. It is responsible for converting the fiber suspension slurry after opening and mixing into a wet fiber web, laying a solid foundation for the subsequent reinforcement and consolidation into cloth. This process not only requires the web-forming mechanism to have a high degree of stability and precision, but also takes into account production efficiency and product quality to ensure the uniformity, strength and air permeability of the fiber web.
The first step in the web-forming process is to spray the fiber suspension slurry evenly onto the web-forming belt. This step seems simple, but it actually has extremely high requirements for the accuracy and stability of the equipment. In order to ensure that the fibers are evenly distributed on the web-forming belt, the non-woven wet-laid web machine is usually equipped with a precise spraying system, which can automatically adjust the spraying amount according to the concentration, flow rate and running speed of the fiber suspension slurry, ensuring that each drop of suspension slurry can accurately fall on the predetermined position.
The sprayed suspension slurry forms a wet fiber layer on the web-forming belt. At this time, the mechanical action in the web-forming mechanism begins to play a role, and the excess water is removed from the fiber layer through devices such as filters and scrapers. The design of the filter screen usually has a specific aperture and arrangement, which can effectively drain water and prevent the fibers from being over-pulled or damaged. The scraper is responsible for further scraping off the water attached to the fiber surface while maintaining the close arrangement between the fibers. In this process, the web-forming mechanism needs to accurately control the pressure and angle of the scraper to avoid unnecessary damage to the fibers, while ensuring the efficiency and uniformity of water removal.
As the excess water is removed, the fibers gradually form a tightly arranged fiber web on the web-forming belt. In this step, the web-forming mechanism also needs to use specific process means, such as vibration and compression, to further strengthen the bonding force between the fibers and improve the strength and stability of the fiber web. Vibration can help the fibers better interweave in a wet state, while compression can further reduce the gaps between the fibers and improve the density and uniformity of the fiber web.
As the core component of the non-woven wet-laid web-forming machine, the stability and accuracy of the web-forming mechanism are directly related to the quality and performance of the final product. In order to ensure the uniformity and strength of the fiber web, the web-forming mechanism needs to be able to maintain the stability and consistency of each link such as spraying, drainage, and compression during long-term continuous operation. This requires equipment manufacturers to fully consider the selection of materials, structural optimization, and intelligent control systems during the design and manufacturing process to improve the overall performance and reliability of the equipment.
With the diversification of market demand for non-woven fabrics, the web-forming mechanism also needs to have a high degree of flexibility and adaptability. This includes the ability to adapt to fiber suspension slurries of different types and concentrations, as well as the production capacity of fiber webs of different specifications and performance requirements. To achieve this goal, the web-forming mechanism is usually equipped with adjustable spraying systems, replaceable filters and scrapers and other components to meet the changes in different production needs.
Under the current environmental protection situation, the production process of non-woven wet web-forming machines also needs to pay more attention to environmental protection and energy saving. As a key link in the production process, the design and operation of the web-forming mechanism need to fully consider the rational use of resources and the treatment of waste. For example, by optimizing the spraying system, water waste can be reduced; by improving drainage efficiency, the cost of wastewater treatment can be reduced; by adopting energy-saving materials and advanced control technology, the energy consumption of equipment can be reduced.
The working performance and stability of the web-forming mechanism directly determine the uniformity, strength and air permeability of the fiber web. These performance parameters not only affect the physical and chemical properties of non-woven fabrics, but also directly affect their application effects in various fields. For example, in the medical and health field, the uniformity and strength of the fiber web determine the comfort and protective performance of medical supplies such as surgical gowns and masks; in the field of home decoration, the air permeability and softness of the fiber web affect the comfort and aesthetics of decorative materials such as wallpaper and wall cloth.
