I Events
The current technical level of rapier looms and supporting equipment at home and abroad
The rapier loom is the largest number of looms in the application of shuttleless looms today. Among the shuttleless looms, the rapier loom is the most versatile and reliable loom for weaving small-batch, medium-batch, and color fabrics with frequent variety changes. The price is lower than that of projectile looms. In recent years, with the improvement of the weft insertion mechanism, the weft insertion speed has increased, but the acceleration changes have been relatively gentle; the structure of the rapier gripping the weft movement can be applied to yarns of different materials and structures, at 0.7～3300tex There is no need to exchange sword heads between. The range of fabrics processed by rapier looms has developed from medium-thickness fabrics to light-weight fabrics, from apparel fabrics to decorative and industrial fabrics, from single-layer fabrics to pile and double-layer pile fabrics, and from narrow widths to 4.6 The width of m has developed from low speed to high speed. Nowadays, the highest weft insertion rate of rapier looms has exceeded 1500 m/min, and the color selection of weft yarns has developed from a single color to a maximum of 16 colors, which is unmatched by other shuttleless looms in terms of variety adaptability.
The current technical level and development trend of rapier looms abroad:
Since my country first introduced broad-width rapier looms for felt weaving in the mid-1970s, it has introduced nearly 70,000 rapier looms of nearly 70 different models from 25 manufacturers in 11 countries and regions; in recent years; , It will continue to introduce a relatively stable volume of 50,000 to 8,000 units per year, which are widely used in various fields of clothing and decorative fabrics, home textiles, neckties, trademarks and special industrial fabrics. Although there are many manufacturers and models of rapier looms, the number of imported rapier looms is relatively concentrated (Italy) Somet, Smit, Vamatex, and Picanol (Belgium). , (Germany) Dornier (Dornier), (Switzerland) Sulzer-Ruti (Sulzer-Ruti) and other Western European manufacturers' products.
The rapier looms introduced in the past ten years have generally used microprocessor monitoring, which can monitor and display the operation of the equipment and various process parameters, and combine high-speed electronic dobby, electronic jacquard shedding mechanism, and electronic weft selection mechanism. , Can quickly and conveniently change the fabric structure and weft color during operation; the electronic warp let-off mechanism can automatically adjust the warp tension under the control of the microcomputer, and keep constant from the full shaft to the empty shaft; the electronic winding mechanism can be set by the microcomputer. The weft density can be changed during operation; different programs can be set when the automatic weft finding and weaving device are working. Under the control of the microprocessor, all the mechanisms, especially the electronic warp let-off and take-up mechanism, can be synchronized with them, which greatly Reduce the chance of driving the crossbar; the use of electronic weft tensioner and electronic weft feeder can effectively control the weft tension throughout the weft insertion process, thereby increasing the speed of the loom; when the rapier loom is equipped with a folding-in device, the Woven fabrics are comparable to shuttle loom fabrics. Due to the above-mentioned series of product development and fabric quality assurance features of the introduced rapier loom mechanism, the product structure and grade have been significantly improved in the past ten years. The application of rapier looms in my country’s shuttleless looms has also reached An unprecedented scale.
In recent years, a new type of rapier loom abroad, the highest demonstration speed can reach 830 rpm (170cm), the range of varieties is extremely wide, especially in the application of multi-color weft and multi-warp warp fabrics with large fiber differences In order to weave low-strength warp yarns at high speed, there are many kinds of looms and the research and development cancels the guide sword crimping device. In terms of mechatronics applications, the combination of high-performance industrial controllers with CPU as the core and new drive technology and the application of various new sensors on the loom have enabled the rapier loom to be automated and intelligent. Mechatronics and informatization have improved the overall level of rapier looms. Since real-time information control of the loom is realized, it provides more accurate data information for equipment monitoring. The control of the loom is more convenient and the performance of the loom is more superior. , The structure is simpler. The SQC rapid variety change system can be used on foreign rapier looms, and the main drive of many models is also driven by a variable-speed motor.
Although my country has introduced a large number of rapier looms, and the latest models have basically been introduced, but the introduction of the latest structures and devices is very small, and the multi-beam and different warp devices have not been heard. Although the weft insertion rate of the rapier loom is not the highest among the shuttleless looms, it has always been in the forefront of the shuttleless loom in terms of total sales due to its complete functions, wide variety adaptability, and superior price-performance ratio. It is expected that in the future The sales volume of rapier looms will continue to expand.