Some ribbon manufacturers are producing Backpack webbing In the process of production, there will be some problems, which will lead to insufficient product quality. Ribbon is widely used in clothing, industry, agriculture, military supplies, transportation and other industrial departments. According to its characteristics, it can be divided into elastic belt, jacquard belt, knitting belt, mother child belt, etc., so the quality of ribbon production is related to the visual effect of products, If any problem occurs in the production of backpack webbing, which will lead to the scrapping of the product, then how can we avoid these problems in the production process, improve the production qualification rate of the webbing, and eliminate the troubles of some manufacturers? Next, we will introduce some problems often encountered in the production of webbing, and have corresponding solutions and preventive measures.
1、 The reasons for the formation of the bent strap of the backpack webbing: uneven threading of the steel buckle, uneven pulling of the pan head, wrong position of the steel buckle, and wrong yarn receiving method.
Precautionary measures: the steel button threading must be in accordance with the normal threading method, one group or two groups. Pull off some of the larger and looser side until it is as flat as the other side or 1-5 turns less. The distance between the steel buckle and the knitting needle is usually one empty distance. According to the needs of the webbing, it should be divided into upper and lower layers, or divided, left and right. Generally, it should be divided into upper and lower layers. If there are more than two methods or lines on a belt, it should be separated.
3、 Causes of poor needle edge of knapsack webbing: uneven weft yarn thickness; The knitting needle is not properly laid, too long or too short; The pan head moves abnormally, sometimes tight, sometimes loose; The weft wheel is not round enough and deformed; The fixing pin of the knitting needle is worn.
Precautions: Change another weft. The knitting needle is longer or shorter according to the thickness of the ribbon. Generally speaking, the length of the knitting needle is just enough to remove the weft. Fix both sides of the pan head firmly, and do not let the pan head lean against the iron frame on both sides. Replace the weft wheel with a new one. Replace the fixed rod or go to processing.
