On-line control system and control method of chemical fiber monofilament drawing tension
A stretching tension and control system technology, applied in the direction of stretch spinning, artificial filament heat treatment, etc., can solve the problems of poor control of chemical fiber monofilament tension, affecting the production quality, cost, consumption, and unevenness of chemical fiber finished products.
Active Publication Date: 2021-04-23
WUXI JINTONG CHEM FIBER
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Problems solved by technology
[0003] In the process of spinning and forming chemical fiber monofilaments, there will often be broken filaments during the winding process of finished monofilaments, or the phenomenon of uneven pore diameters between monofilaments in the screen. These problems are usually caused by chemical fiber monofilaments. Caused by poor or uneven tension control during wire drawing
If real-time tension detection and process control are not carried out, during the spinning production process, due to raw materials, processes, equipment, temperature and humidity parameters, etc., frequent breakage of chemical fiber monofilaments or uneven apertures between monofilaments will easily occur. Affect the production quality, cost and consumption of chemical fiber products, which is not conducive to the economic benefits of producers
Method used
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Embodiment 1
[0032] For the finished winding wire, the detection of the stretching tension in the prior art belongs to the post detection, that is, it has a large hysteresis. In fact, in the process of stretching the melt-spun chemical fiber monofilament, the change of tension will have a significant impact on the properties of the product. In the prior art, the finished product is often tested after the stretching is completed, which to some extent leads to frequent product scrapping due to inadequate monitoring. In order to control the quality of the chemical fiber stretching production process and reduce the scrap rate of stretched finished products, Embodiment 1 of the present invention provides an online tension control system for chemical fiber monofilament stretching, refer to figure 1 and figure 2 , including the first drawing hot roll 1, the second drawing hot roll 2 and the drawing hot plate 3 arranged in sequence according to the drawing sequence of the melt-spun chemical fibe...
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Abstract
The invention discloses an on-line control system and control method for the stretching tension of chemical fiber monofilament, and relates to the new technology field of chemical fiber. The tension change between the stretching hot roll and the second stretching hot roll, and the tension change between the second stretching hot roll and the stretching hot plate, the draw ratio and graded draw ratio in the melt-spun monofilament stretching process Real-time monitoring of the reliability of the stretching process, which is conducive to ensuring the stability and structural performance of the finished monofilament winding and forming, reducing the reject rate of the stretched finished monofilament, and playing an early warning and real-time role in the quality of the final formed product. The role of online control.
Description
technical field [0001] The invention belongs to the field of new technology of chemical fiber, in particular, it relates to an online control system and method for stretching tension of chemical fiber monofilament. Background technique [0002] Chemical fiber products are currently developing continuously, and a variety of ultra-fine denier fibers, high-strength and high-modulus fibers, functional fibers, and smart fiber products have emerged, which are widely used in various applications. [0003] In the process of spinning and forming chemical fiber monofilaments, there will often be broken filaments during the winding process of finished monofilaments, or the phenomenon of uneven apertures between monofilaments in the screen. These problems are usually caused by chemical fiber monofilaments. Caused by poor or uneven tension control during wire drawing. If real-time tension detection and process control are not carried out, in the spinning production process, due to raw m...
Claims
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IPC IPC(8): D01D5/16D01D10/02
CPCD01D5/16D01D10/02
Inventor 华旻烨李建良丁天
Owner WUXI JINTONG CHEM FIBER