Cấu trúc cung cấp sợi của máy dệt kim tròn
Nov 11, 2023
The circular knitting machine comprises a frame, yarn supply system, transmission system, lubrication and dust removal system, electrical control system, drawing and winding system, and other auxiliary devices.
Frame: The frame consists of three legs (commonly known as lower feet) and a circular (or square) tabletop. The lower feet are fixed with forks, and the tabletop (commonly known as the large plate) has three columns (commonly known as upper feet or straight feet). Safety doors (also known as protection doors) are installed in the gaps between the three lower feet, ensuring stability and safety. Noteworthy features include the internal structure of the lower feet for storing wires and tools, enhancing machine safety and cleanliness. The safety door functions reliably, automatically stopping the machine and displaying a warning on the control panel when opened to prevent accidents.
Yarn Supply Structure: The yarn supply structure, also known as the yarn feeding mechanism, includes components like the yarn rack, yarn accumulator, yarn feeder nozzle, yarn feeding disc, and yarn ring holder.
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Yarn Rack: The yarn rack holds the yarn and comes in two types: umbrella tube rack (or top tube rack) and floor tube rack. The umbrella yarn rack occupies less space but lacks space for spare yarn, suitable for small local enterprises. The floor tube rack includes the triangular tube rack and the wall-mounted tube rack (also known as the two-piece tube rack). The triangular yarn rack is more convenient to move, and the operator can easily thread the yarn. The wall yarn rack is neat and aesthetically pleasing but occupies more space, making it suitable for larger factories.
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Yarn Accumulator:Bộ lưu trữ sợi có ba dạng: thông thường, đàn hồi (được sử dụng để đan xen spandex và các sợi khác) và bộ lưu trữ sợi khe hở điện tử, đóng một vai trò quan trọng trong việc điều chỉnh độ căng của sợi. Các phương pháp cho ăn bao gồm sợi cho ăn dương (quấn 10-20 vòng trên bộ tích lũy), sợi cho ăn bán tiêu cực (quấn 1-2 vòng trên bộ tích lũy), sợi cho ăn tiêu cực (không quấn trên bộ tích lũy).
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Yarn Feeder Nozzle: Also known as the steel shuttle or yarn guide, the yarn feeder nozzle directs the yarn directly into the knitting needles. Various types and shapes include single-hole yarn feeder nozzles and double-hole single-slot yarn feeder nozzles.
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Others: Components like the sand table control yarn feeding, and the yarn support can hold the large ring with the yarn storage device.
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Basic Requirements for Yarn Supply Mechanism:
- Ensure uniform and continuous yarn feeding to achieve consistent loop size and shape for a smooth and aesthetically pleasing knitted product.
- Maintain reasonable yarn tension to reduce fabric defects such as missed stitches and ensure fabric quality.
- Adhere to the required yarn supply ratio between knitting systems, facilitating the adjustment of yarn supply for different colors and varieties.
- Ensure smooth and burr-free yarn hooks to prevent yarn breakage.
In summary, the yarn supply mechanism is essential for achieving quality and efficiency in circular knitting machines. Careful consideration of its components and functions is crucial for optimal machine performance and fabric production.
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