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中文简体In the raw materials for non-woven fabric production, metal impurities may exist in various forms, such as iron filings, steel wires, screws, etc. Although these metal impurities are tiny, they may become "invisible killers" during the operation of high-speed combing machines. When metal impurities enter the combing area with the fibers, they may collide with key components such as the card clothing and cylinder of the combing machine, causing damage to the components or increased wear. Metal impurities may also be embedded in non-woven fabrics, forming hard spots or protrusions, affecting the flatness and softness of non-woven fabrics, and reducing their physical properties and service life.
More seriously, metal impurities may also cause equipment failures, such as blocking the combing channel and damaging the transmission system, resulting in production interruptions and downtime for maintenance. This will not only increase production costs, but may also affect the company's production plan and delivery cycle, and reduce customer satisfaction.
In order to meet the challenges brought by metal impurities, modern high-speed combing machines are generally equipped with metal detection devices. This device can accurately identify and mark metal impurities before the fibers enter the combing area to ensure that they are removed in time. The working principle of the metal detection device is usually based on electromagnetic induction or X-ray technology. By detecting the electromagnetic characteristics or density differences of metal impurities in the fiber, the metal impurities can be accurately identified.
The metal detection device is usually installed at the feed port or in front of the combing area of the combing machine and connected to the control system of the combing machine. When metal impurities are detected, the metal detection device will immediately send a signal to the control system, and the control system will start the corresponding exclusion mechanism, such as shutdown, alarm or start the impurity removal device, to exclude the fiber bundles or fiber clusters containing metal impurities from the combing area to prevent them from entering the subsequent production process.
The application of metal detection devices in high-speed combing machines has significant advantages and characteristics:
High-precision identification: The metal detection device adopts advanced detection technology to achieve high-precision identification of metal impurities. Whether it is tiny iron filings or larger metal blocks, they can be accurately detected to ensure that metal impurities in the non-woven fabric production process are effectively controlled.
Real-time online monitoring: The metal detection device is connected to the control system of the combing machine and can monitor the metal impurities in the fiber in real time online. Once metal impurities are detected, the control system will respond immediately and start the corresponding exclusion mechanism to ensure the continuity and stability of the production process.
Easy to operate and maintain: Metal detection devices usually adopt modular design, which is easy to install, debug and maintain. Operators only need simple training to master its use method to ensure the normal operation and detection effect of the equipment.
Strong adaptability: Metal detection devices are suitable for fiber raw materials of different types and specifications, and can meet the diversified needs in the production process of non-woven fabrics. At the same time, the metal detection device also has an adjustable sensitivity setting, which can be adjusted according to the content and size of metal impurities in the fiber raw materials to ensure the optimization of the detection effect.
In actual application, the performance of metal detection devices on high-speed combing machines is remarkable. Taking a non-woven fabric production enterprise as an example, after the enterprise introduced a high-speed combing machine equipped with a metal detection device, the metal impurity problem in the production process was effectively controlled. According to statistics, the equipment failure rate caused by metal impurities has been reduced by more than 80%, and the product quality of non-woven fabrics has also been significantly improved.
The application of metal detection devices has also brought other positive effects. On the one hand, the precise identification ability of metal detection devices has improved the level of automation in the production process of non-woven fabrics and reduced the cost and difficulty of manual intervention. On the other hand, the application of metal detection devices has also promoted technological innovation and industrial upgrading of non-woven fabric manufacturers, and enhanced the market competitiveness and sustainable development capabilities of enterprises.
