How to thread yarn correctly in direct warping machine?

According to the requirements of the process sheet, load the cheese yarn to the creel in order, ensure that the unwinding direction of the cheese yarn is consistent with the equipment indication, and avoid yarn entanglement and knotting. Comprehensively check all parts of the warping machine, such as the tensioner, yarn guide hook, telescopic reed, etc., to ensure that the surface is smooth and burr-free to prevent scratching the yarn. At the same time, clean the remaining flying flowers and dust on the surface of the parts to ensure the cleanliness of the yarn.

Lead the yarn from the cheese yarn, first pass it through the tensioner, adjust the tension knob according to the yarn material and line density, so that the tension of the single yarn is uniform and stable, and avoid uneven tension causing uneven tightness of the warping beam. Then, guide the yarn through the yarn guide hook and the yarn guide rod in turn, and use the yarn guide component to accurately guide the yarn to the telescopic reed. When inserting the telescopic reed, it is necessary to operate according to the predetermined threading sequence to ensure that the yarn is evenly distributed in the width direction of the warping beam to avoid sparse and dense roads.

Fix the end of the yarn that passes through the telescopic reed firmly on the warping beam with a special clamp or tape. When fixing, make sure that the yarn is flat and wrinkle-free, and the clamp or tape is in a reasonable position to avoid affecting the subsequent yarn winding.

After the yarn is threaded, check whether the yarn path is correct one by one, whether there is any missing or wrong threading; confirm the tensioner parameters again, and feel the tension consistency by manually pulling the yarn. Start the equipment for a low-speed test run, observe the winding state of the yarn on the warping beam, and if the yarn is found to be deviated, overlapped, or the tension fluctuates, stop the machine immediately and adjust until it meets the production requirements. Keep the yarn clean throughout the threading process to avoid oil and impurities, to ensure the quality of warping.

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