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How to control the amount of oil applied to the POY spinning production line to ensure that the oil film can be evenly formed on the fiber surface, reducing friction resistance and the generation of filaments?

In the POY (pre-oriented yarn) spinning production process, the control of the amount of oil applied is a key link to ensure the quality of the fiber. Reasonable amount of oil applied can form an oil film evenly on the fiber surface, effectively reduce friction resistance, reduce the generation of filaments, and thus improve the overall quality of the fiber and subsequent processing performance. The following will discuss in detail the control method of the amount of oil applied to the POY spinning production line.
During the POY spinning process, the fiber will be subjected to greater tension and friction during drafting and winding. If the fiber surface is not protected by a uniform oil film, the friction between the fibers and between the fibers and the equipment will increase, which will not only increase power consumption, but also cause damage to the fiber surface and produce filaments. The appearance of filaments will seriously affect the appearance quality and subsequent processing performance of the fiber, such as increased breakage rate during weaving and uneven fabric surface. A uniform oil film can effectively reduce these adverse effects, making the fiber smoother in the subsequent processing process, and improving production efficiency and product quality.

Spinning speed is an important factor. Generally speaking, the faster the spinning speed, the greater the friction between the fiber and the equipment, and more oil is needed to form an effective oil film. For example, when the spinning speed increases, the stretching and friction of the fiber during the drafting and winding process increases. If the amount of oil applied is insufficient, the fiber surface is prone to wear and lint. The spinning temperature also affects the amount of oil applied. Higher spinning temperatures increase the activity of the fiber surface, and the oil is more likely to adsorb on the fiber surface, but too high a temperature may cause the oil to evaporate too quickly, affecting the formation of the oil film.
The type and properties of the oil have a significant effect on the amount of oil applied. Different oils have different viscosities, surface tensions, and adsorption properties. Oils with higher viscosities have stronger adhesion to the fiber surface, but poor fluidity, and the amount of oil applied may need to be adjusted appropriately to ensure uniform coverage. Oils with low surface tension are more likely to spread on the fiber surface to form a uniform oil film. In addition, the chemical stability of the oil is also important. If the oil decomposes or deteriorates at high temperatures or when in contact with other chemicals, it will affect the quality of the oil film and the oiling effect.
The structure and performance of the oiling device directly affect the uniformity of the oiling amount. For example, whether the design of the oil nozzle is reasonable and whether the liquid level of the oil tank is stable will affect the spraying amount and distribution of the oil agent. If the oil nozzle is blocked or the oil tank level fluctuates greatly, it will cause insufficient or excessive oiling of the fiber, thus affecting the quality of the fiber. In addition, the cleanliness of the equipment is also very important. If there are impurities or oil stains on the equipment, it will affect the purity of the oil agent and the oiling effect.
Use high-precision metering equipment to accurately control the amount of oiling. The flow rate of the oil agent can be monitored and adjusted in real time through flow meters, metering pumps and other equipment to ensure the accuracy of the oiling amount. For example, the use of high-precision metering pumps can adjust the delivery amount of the oil agent in time according to the changes in the spinning process parameters to ensure that the fiber surface obtains the right amount of oil agent. Regularly calibrate and maintain the metering equipment to ensure its measurement accuracy and stability.

Select a suitable oil agent formula according to the spinning process and equipment conditions. Through experiments and research, oil agents with good adsorption, lubricity and stability can be screened out. For example, adding some special additives can improve the performance of the oil agent and improve its adhesion and spreadability on the fiber surface. Consider the cost and environmental friendliness of the oil, and choose a cost-effective oil product. Jiaxing Shengbang Mechanical Equipment Co., Ltd. has invested a lot of resources in technology research and development, and its advanced production equipment and technology can provide strong support for the optimization of oil formulations. The company's advanced testing and testing equipment can accurately analyze the performance of the oil, helping R&D personnel to better adjust the oil formulation to meet different spinning needs.
According to the changes in process parameters such as spinning speed and temperature, timely adjust the oiling process parameters. For example, when the spinning speed increases, the amount of oiling is appropriately increased; when the spinning temperature decreases, adjust the heating temperature of the oil or select a suitable oil variety to ensure good adsorption and spreading of the oil on the fiber surface. Optimize the working parameters of the oiling device, such as the spray angle of the oil nozzle, the liquid level height of the oil tank, etc., to ensure that the oil can be evenly sprayed on the fiber surface.

Regularly clean and maintain the oiling device to ensure the normal operation of the equipment. Clean impurities and oil stains in the oil nozzle, oil tank and other parts in time to prevent blockage and affect the oiling effect. Make technical improvements to the oiling device to improve its performance and stability. For example, a new oil nozzle design is adopted to enable the oil agent to be sprayed more evenly on the fiber surface; the structure of the oil tank is optimized to ensure the stability of the oil tank liquid level. Jiaxing Shengbang Mechanical Equipment Co., Ltd. has advanced and complete spinning machinery production, inspection, testing and maintenance equipment, such as advanced CNC machine tools, Schenck dynamic balancing machines, etc. These equipment can be used for the manufacture and maintenance of oiling devices, ensuring the high precision and high quality of oiling devices, and providing hardware guarantee for the precise control of the oiling amount.
Establish an online monitoring system to monitor the oiling condition and oil film quality on the fiber surface in real time. The friction coefficient, surface tension and other parameters of the fiber can be detected by sensors and other equipment, and the oiling amount can be adjusted in time according to the test results. For example, when the friction coefficient of the fiber surface is monitored to increase, it means that the oil film may be insufficient, and the oiling amount can be increased at this time; conversely, when the friction coefficient is too small, the oiling amount can be appropriately reduced. This feedback control mechanism can realize real-time adjustment of the oiling amount to ensure that a uniform and effective oil film is always formed on the fiber surface.

During the production process, the oiling quality of the fiber is regularly tested. Visual inspection, hand feeling, instrument analysis and other methods can be used to check whether the oil film on the fiber surface is uniform and whether there are lints. Regularly test the performance of the oil agent to ensure that it meets the production requirements. For fibers that do not meet the quality requirements, timely analyze the reasons and adjust the oiling amount and other process parameters.
The oiling amount control of the POY spinning production line is a complex system engineering, which requires comprehensive consideration of multiple factors such as spinning process parameters, oil agent performance, equipment conditions, etc. Through accurate measurement of the oiling amount, optimization of the oil agent formula, adjustment of the oiling process parameters, equipment maintenance and improvement, online monitoring and feedback control, and strict quality control and testing, the oiling amount can be effectively controlled to ensure that the oil film is evenly formed on the fiber surface, reduce friction resistance and lint generation, and improve the quality and production efficiency of POY fibers. Jiaxing Shengbang Mechanical Equipment Co., Ltd., with its advanced production equipment and technology, has significant advantages in technology research and development and equipment manufacturing in the field of spinning machinery, and can provide strong technical support and equipment guarantee for spinning enterprises, helping enterprises to achieve high-quality production.