The raising operation is also very important for the maintenance of the needle rollers. When raising, the needle roller is seriously sucking the cloth, the cloth at the feeding place is jumping violently, there is a pulling phenomenon at the feeding place, and the fluff of the fabric cannot be raised again, the raising should be stopped. Raise again, otherwise it will damage the clothing and the fabric. When raising, it is also necessary to strictly prevent the fabric from breaking, because the broken fabric is wrapped around the counter-clockwise roller, not only the fabric is completely torn, but also the needle roller is seriously injured and even scrapped. During the operation, it should also be noted that the fabric should be moved left and right frequently, which not only ensures the sharpness of the needle tip is consistent, but also ensures the quality of the fabric. In addition, the needle tip of the new needle roller is too sharp and needs to be sharpened before use; generally, the needle tip will become blunt and sharpened after use of the raising roller for about half a year.
In the long-term practice of raising, people have accumulated a lot of experience, such as tentering before raising is beneficial to raising, smooth operation should be performed in each raising, and multiple light pulling should be mastered in raising.
Raising requires short, dense and uniform piles. More importantly, you should be careful not to raise too much, otherwise it will seriously affect the strength of the fabric. Generally, the strength should be sampled when the pile is close to the standard, and the weft strength after raising should be at least 177N ( 18kgf) or above, otherwise it will affect the fastness.
In the long-term practice, people have summarized the "three attendance" system of attendance inspection, frequent investigation and frequent contact on the raising operation method, which has a good effect on improving and ensuring the raising question.
