What are the advantages of textile equipment warp strips
The warp stop strip in textile equipment is a key component of the loom's warp break self stop device, mainly used to detect whether the warp yarn is broken and trigger the loom to stop, avoiding the production of defective products. Its design advantages revolve around core requirements such as detection sensitivity, reliability, adaptability, and maintenance convenience. The following is a speci
The warp stop strip in textile equipment is a key component of the loom's warp break self stop device, mainly used to detect whether the warp yarn is broken and trigger the loom to stop, avoiding the production of defective products. Its design advantages revolve around core requirements such as detection sensitivity, reliability, adaptability, and maintenance convenience. The following is a specific analysis:
1、 High precision fault detection capability
1. Sensitive trigger shutdown mechanism
Electrical contact detection:
The warp stop strip is composed of multiple metal strips (usually copper or stainless steel) arranged in parallel, with each metal strip corresponding to a warp yarn. When the warp yarn breaks, the stopping piece (metal piece worn on the warp yarn) falls due to gravity, causing adjacent metal strips to conduct a circuit and triggering a stop within 0.1 seconds to avoid fabric defects caused by the continued weaving of broken warp yarn (such as "missing warp" and "thin road").
Detection accuracy up to single warp yarn:
It can identify the breakage of fine warp yarns with a diameter of 0.05~0.5mm (such as high count cotton yarn and synthetic filament), especially suitable for the correct monitoring of high-density fabrics (warp yarn density>1000 strands/10cm).
2. Anti interference design
Insulation and anti shake structure:
Engineering plastic insulation sheets (such as nylon and POM) are used to isolate the metal strips, with a spacing of 0.5-2mm, to prevent accidental triggering of power generation signals due to vibration, static electricity, or yarn fuzz;
Voltage stability control:
Usually, a safe low voltage (DC 12-24V) power supply is used to avoid high-voltage breakdown of the insulation layer and reduce the interference of static electricity on the yarn adsorption.
2、 Advantages of Production Efficiency and Quality Improvement
1. Reduce defects and repair costs
Real time interruption response:
Compared to manual visual inspection, the stop warp strip can shorten the detection time of broken warp from "once every 5-10 minutes" to "instant triggering", avoiding the length of defective fabric exceeding 1 meter (traditional manual inspection may result in defective fabric being as long as 5-10 meters), and increasing the fabric qualification rate by 8% to 15%.
Reduce post-processing pressure:
Timely handling of broken warp can reduce the workload of the "repair" process (such as manual repair), especially for high value-added fabrics (such as silk and spun wool fabrics), saving 20-30 hours of repair time per ton of fabric.
2. Support high-speed and automated production
Adapting to high-speed weaving machines:
On high-speed equipment such as jet looms, the detection frequency of warp stopping strips can reach 5000 times per minute, meeting the real-time monitoring requirements during rapid warp movement (warp yarn speed can reach 20 meters per second);
Integrated intelligent control system:
The warp stop strip can be linked with the loom PLC (programmable logic controller) to record data such as the position and frequency of warp breaks, generate defect distribution reports, and assist in process optimization (such as adjusting warp tension and replacing warp stop pieces in vulnerable areas).
4、 Maintain convenience and economy
1. Low maintenance cost design
Lubrication free structure:
The metal strip and insulation sheet are fitted with a gap, without the need for lubricating grease, to avoid oil contamination of the warp yarn (especially suitable for white and light colored fabric production);
Quick cleaning method:
The surface of the warp stop strip is smooth (roughness Ra ≤ 1.6 μ m), and the yarn fuzz can be cleaned by blowing with compressed air or using a soft bristled brush, with a single cleaning time of less than 5 minutes.
2. Long service life and cost-effectiveness
Durability data:
Under normal use, the lifespan of the metal strip can reach 5-8 years (calculated based on 16 hours of operation per day), and the lifespan of the insulation sheet is 3-5 years. The overall cost is lower than that of frequently replaced electronic sensors (such as fiber optic sensors that require annual calibration, which is 30% more expensive);
Adapt to low-cost renovation:
Old weaving machines can upgrade their warp detection function by installing warp stopping strips, with a cost of only 10% to 20% of replacing the entire machine, making it suitable for technology upgrades in small and medium-sized textile enterprises.
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