Where is the universal 8-row warp stopping device (warp stopping frame) for shuttleless looms used
The universal 8-row warp stopping device (warp stopping frame) for shuttleless looms is a key auxiliary component on shuttleless looms (such as water jet looms, air-jet looms, rapier looms, etc.), mainly used to monitor the operating status of warp yarns. Its application scenarios are closely related to its core functions, as follows:
The universal 8-row warp stopping device (warp stopping frame) for shuttleless looms is a key auxiliary component on shuttleless looms (such as water jet looms, air-jet looms, rapier looms, etc.), mainly used to monitor the operating status of warp yarns. Its application scenarios are closely related to its core functions, as follows:
1、 Core application scenario: Monitoring of warp yarn system for shuttleless looms
Regardless of the type of shuttleless loom (such as water jet, air jet, rapier, etc.), real-time monitoring of the warp yarn is required during the weaving process through a warp stop frame. Therefore, the core application position of the 8-row warp stop device is at the front end of the warp yarn opening area of the loom, that is, on the path of the warp yarn after being led out of the weaving shaft and before entering the warp frame and reed seat.
Specifically, the warp yarns will pass through the warp stopping pieces on the warp stopping frame in sequence (each warp yarn corresponds to a warp stopping piece), and then enter the subsequent opening mechanism. The 8-column design means that the device can simultaneously monitor 8 columns of warp yarns (each corresponding to a set of warp yarns), adapting to the weaving needs of medium width fabrics (such as home textiles, clothing fabrics, industrial fabrics, etc.).
2、 The application value determined by core functions
The essence of its application is to ensure weaving continuity and fabric quality by monitoring the warp state, which is specifically reflected in:
Yarn breakage detection and shutdown: When a warp yarn breaks due to excessive tension, wear, or material defects, the corresponding warp stop piece will fall and trigger an electrical or mechanical signal, causing the loom to stop immediately, avoiding fabric defects caused by yarn breakage (such as missed warp and jumping), and reducing the scrap rate.
Abnormal monitoring of warp tension: Some advanced warp stopping devices can indirectly reflect the fluctuation of warp tension through the small displacement of the warp stopping piece, assisting in determining whether the warp is too loose or too tight, and providing a basis for adjusting loom parameters (such as warp feed speed).
Compatible with multiple types of weaving: The "universal" design allows it to be compatible with warp yarns of different raw materials (cotton, synthetic fiber, silk, linen, etc.) and different thread densities (thickness), simply by replacing the corresponding specifications of stop pads. It is suitable for production scenarios of small and medium-sized batches and multiple types of fabrics (such as clothing factories supporting weaving machines, home textile factories, etc.).
Improving weaving efficiency: Compared to manual inspection, the 8-row warp stopping device can detect yarn breakage in real time and accurately, reducing manual intervention and shortening downtime adjustment time. It is particularly suitable for the efficient production needs of high-speed shuttleless weaving machines (weaving speeds can reach hundreds of revolutions per minute).
3、 Suitable fabric types
Due to its 8-column design supporting warp yarn arrangements of a certain width, it is commonly used for weaving medium to wide width fabrics, such as:
Clothing fabrics (cotton greige fabric, synthetic blend fabric, etc.);
Home textile fabrics (bed sheets, curtain fabrics, etc.);
Industrial fabrics (packaging fabrics, filter fabrics, etc., non ultra wide type).
For ultra wide fabrics such as tent fabrics and industrial wide fabrics, more warp stopping devices (such as 10 or 12 rows) may be required, while the 8-row universal type is more suitable for mainstream medium wide weaving scenarios.
In summary, the universal 8-row warp stopping device of the shuttleless loom is the "monitoring sentinel" of the warp system, which is core applied in the warp path of various shuttleless looms. By detecting yarn breakage and abnormal tension in real time, it ensures fabric quality and improves weaving efficiency, especially suitable for the weaving needs of medium width and multiple varieties.
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