Perforated non-woven fabric production device and method

Abstract

The invention discloses a perforated non-woven fabric production device and method. The production device comprises a device body, wherein a punching operation cavity is formed in the device body, the left end and the right end of the punching operation cavity communicate with the exterior of the device body, and paired conveying rollers are arranged on the left side and the right side of the device body. When the perforated non-woven fabric production device works, a perforating operation roller is fixed, the perforating operation range of a non-woven fabric is controlled by changing the diameters of different areas on an auxiliary operation roller, and therefore, the requirement for conveniently controlling whether the different areas are perforated or not is met; and meanwhile, an area can be flexibly changed, a rolling wheel is in rolling contact with the surface of the auxiliary operation roller, and when the diameter of the local surface of the auxiliary operation roller is reduced, a movable rod below the area cannot act on a pressing valve, and negative pressure airflow below the area is automatically closed, so punching waste can be adsorbed by negative pressure, the negative pressure airflow can be prevented from excessively adsorbing the non-woven fabric, the non-woven fabric does not deform, and the position of adsorbing airflow is automatically controlled.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a production device and method for perforated non-woven fabrics. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are a new generation of environmentally friendly materials with the characteristics of water repellency, breathability, flexibility, non-combustibility, non-toxic and non-irritating, and rich colors. If the non-woven fabric is placed outdoors and decomposed naturally, its longest life span is only 90 days, and it decomposes within 5 years when placed indoors. It directly uses polymer chips, short fibers or filaments to form a new type of fiber product with soft, breathable and planar structure through various web forming methods and consolidation technologies. [0003] According to the composition of non-woven fabrics, there are polyester, polypropylene, nylon, spandex, acrylic, etc.; different compositions will have complet...

AI Technical Summary

Problems solved by technology

[0005] Perforated non-woven fabrics are generally used in the medical field. Holes are punched on the surface to improve the air permeability of the non-woven fabric. Perforation processing is performed between the perforated rollers, but the position of the perforated point on the surface of the perforated roller is fixed and cannot be adjusted for the perforated area, only the perforated roller must be replaced

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