Introduction of Rapier loom
As early as 150 years ago, shuttle looms gradually replaced manual weaving. At that time, the output of shuttle looms was twice that of manual weaving. Shuttleless looms began to appear in 1844. Flexible rapier looms began in 1925. After World War II, commercial production was realized from 1950s to 1960s, and significant progress was made gradually. At present, the weft insertion rate of rapier looms has reached more than 1500m / min.
Rapier loom is mainly designed to solve the weft insertion method, including rigid, flexible and retractable weft insertion. Its main products are fabrics for clothing. Compared with other weft insertion methods, the weft insertion method of rapier loom is suitable for multi-color weft insertion and can produce 12 color weft insertion products with multi pattern patterns, including various types of yarn and various types of fabrics in the past. The active rapier drive can complete weft insertion for many yarns with difficult weft insertion.
The biggest advantage of the weft insertion system of the rigid rapier loom is to actively transfer the weft to the center of the weaving mouth without any guiding device. The rigid rapier loom covers a large area, mainly because the reed width has a certain limit.
The weft insertion system of flexible rapier loom has strong adaptability, wide application range, significantly increased weft insertion rate, and the reed width is 460cm.
In the last 15 years of the 20th century, the electronic computer was introduced into the loom, and the microelectronic CAD-CAM system was widely used, which formed a perfect combination of microelectronic technology, information transmission technology and weaving technology. The combination of many electronic devices and systems with the loom became an integral part of the rapier loom, especially the wide application of microelectronic technology in the rapier loom, including weft insertion technology. Some weft insertion elements have been greatly improved, with small volume and light weight.
Due to the wide application of microelectronic technology, the speed and weft insertion rate of rapier loom are greatly improved. In various weft insertion modes, such as shuttle weft insertion, rapier weft insertion, air jet weft insertion and water jet weft insertion system, the weft insertion speed of rapier is also very high in addition to air jet weft insertion. In the last 50 years of the 20th century, rapier looms have made remarkable progress, especially showing the world the latest high-tech rapier looms at Milan in 1995 and Paris in 1999.
Development of rapier loom
From 1963 to 1999, the running speed and weft insertion rate of rapier loom changed greatly when it was exhibited at the international textile machinery exhibition.
For example, the weft insertion rate of flexible rapier loom increased from 315m / min in 1963 to 2000m / min in 1999; The rotating speed increased from 200R / min in 1971 to 800r / min in 1999.
The weft insertion rate of rigid rapier loom increased from 400m / min in 1963 to 1300m / min in 1999, and the speed increased from 300r / min in 1971 to 650r / min in 1999.
The speed of products of somet, Zell, bijiale, vantes, donier and Tsuda Ju has increased significantly, and the speed of domestic rapier looms has reached 504r / min.
The goal of machine manufacturers to participate in the world competition is to strive to improve the output and operation performance of looms, improve weaving efficiency and product quality. Rapier looms not only improve the speed and weft insertion rate, but also the width of the loom
After years of efforts to improve, the speed and weft insertion rate of rapier loom have greatly exceeded that of shuttle loom, but the width can not be compared with that of shuttle loom.
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