Date:2019/5/10 15:17:07 Number of visits:
In the process of elastic belt production, some conditions will occur, which will lead to the deviation of product quality. If there is any problem in the production of elastic belt, the product will be scrapped. Then, the following small make up for you to introduce in detail how to avoid these problems in the production process, so as to improve the ribbon production pass rate.
1. Bending belt -- forming reason: uneven steel buckle; Uneven yarn pulling at the end of the pan; Wrong position of steel buckle; Wrong connection method
Preventive measures: steel buckle puncture must be normal puncture, 1 or 2 groups of puncture; Pull off some of the loose side until it is as flat as the other side or less than 1-5 turns; Steel buckle and generally knitting needle distance, a steel buckle empty distance can be; According to the needs of the webbing, the upper and lower layers are connected, or the upper and the lower layers are connected. Generally, the upper and lower layers are connected. If there are two or more methods or patterns on a strip, the upper and lower layers are connected separately.
2. Waviness -- causes: uneven thread of steel buckle, too much yarn on both sides and too little in the middle; The steel buckle is too big and the weft yarn is too tight. The end of the drawstring uneven, both sides of the tension, the middle pull too loose; Wrong connection method, bad balance.
Preventive measures: choose standard steel buckle, according to 1 or 2 groups of puncture method; According to the width of the ribbon, choose steel buckle to wear; Change the middle and sides of the yarn, or pull down the middle of the loose some; According to the webbing method needs to be connected, the balance is pressed by the number of strips on average.
Iii. Poor needle edge -- causes: uneven weft thickness; Wrong stitch, too long or too short; Pan head walk is not normal, sometimes tight, sometimes loose; The weft wheel is not round enough and deformed; The pin holds the hin worn.
Preventive measures: another weft replacement; Generally speaking, the length of the knitting needle is just enough to return the weft yarn. Fix both sides of the pan head firmly, do not let the pan head rest on both sides of the iron frame; New weft wheel; Replace the fixed rod, or machining.
4. Fluffing -- causes: fluffing at the needle edge; Fluffing of cloth edges; The webbing surface is fluffed
Precautions: the needle plate has been used for a long time and has been damaged. New needle plate; The knitting needle has been damaged and replaced with a new one; Pressure belt plate is too tight, relax pressure belt plate; If the filling is not finished, adjust the distance between the weft needle and the knitting needle so that the filling can be finished. The steel buckle of the weft yarn is hung, and the weft yarn is put into the weft pole. If the steel buckle is damaged, replace it with another one; Raw material itself has hair, if part of the fluff, the fluff replaced, such as too much fluff, after finishing goods to do a full inspection belt; Weft needle damage caused by a replacement, or with gauze dozen; Steel buckle damage, with gauze dozen, or another steel buckle; The palm piece is damaged or the stop piece is damaged and replaced with a new one.
Five, size -- cause: raw material thickness is uneven, so that the ribbon has a small; The steel buckle is too big or too small, so that the ribbon size; The weft wheel becomes loose during running. The weft thread passes through the rod spring, and there is yarn wool in it.
Preventive measures: to often measure the width of the ribbon, found that there is unqualified immediately transferred over; Wear steel buckle not too big or too small, wear unqualified re-wear, not forced production; Tighten and fix the filling wheel; Loosen the spring outside often, make inside have gauze wool to be able to come out.
