1. Weaving (tatting) The most basic process of making a ribbon on a loom is the interweaving of warp and weft. The so-called warp and weft interweaving means that the twisted yarns are arranged to make a bobbin (pan head), the weft yarn is shaken into a bun, and the ribbon is woven on the loom. This production method was the most popular in the 1930s, and it was also the most basic and important way to support the industry. At that time, the wooden loom was manually pulled, and the iron-wood loom was used for weaving. In the early 1960s, the 1511 loom was converted into a ribbon loom, and the ribbon was stopped by a motorized form. Now this method is still widely used in some small town workshops. This kind of tape loom is different from the “predecessors” because of its small span and weaving method. There are single, double, dozens, etc., with single layer and double layer. In 1967, the research group of shuttleless webbing, which was mainly composed of industrial workers, successfully designed and manufactured a high-speed single shuttleless webbing machine ( This is the original appearance of a modern loom), this loom realizes weaving without a shuttle, the process is greatly shortened, and the machine is small and exquisite, occupying a small area, but the most important thing is that its labor productivity is improved. Birth, weaving craftsmanship in China created history. Later, in the 1970s, the continuous dyeing and ironing machine for tapes was successfully produced and widely promoted. The processing of colored tapes has also entered a new era. The traditional process of first dyeing and then weaving has gradually developed into first weaving and then dyeing, first weaving and then bleaching, and ironing and then processing. Ribbon technology has entered the ranks of mechanized mass production. Until the early 1980s, with the country’s reform and opening up, many foreign high-tech weaving technologies and their machines flooded into the Chinese market. For example, the introduction of high-speed shuttleless belt looms, ironing machines, wrapping machines, and warping machines in Switzerland, Italy, the Federal Republic of Germany and other countries is the most obvious. step forward. In 1979, the first-generation SD9-9 rubber ingot belt in China was successfully tested and put into use. The rubber ingot belt product ended the history of relying on imports. On this basis, in 1980, SD-81A and B two types of rubber spindle belt machines were developed, which have the characteristics of softness, lightness, thinness, firmness, small elongation, etc., and the impact force during operation is relatively much smaller. The joints are short and flat. Later, after more than two years of research and trial production, the quality of webbing products reached QC49-92 and TL-VW470 standards.
2. Weaving (spindle weaving) The so-called spindle weaving is to insert the yarn into the weft tube after the yarn is warped and wound, and then inserted into the fixed tooth seat of the knitting machine. weaving. Under normal circumstances, the number of spindles woven is even, the woven tape is tubular, the number of spindles is odd, and the woven tape is flat. This kind of spindle weaving process has been applied in old China. The number of spindles varies with different equipment, but it is generally between 9 and 100 spindles. The basic process of weaving is: bleaching and dyeing – weft winding – weaving – falling Machine cut – packaging. Since the 1960s, people in the industry have carried out many technical innovations on the knitting machine, mainly focusing on technical improvements such as enlarging the diameter of the peach board, installing an automatic stop device for breaking rubber bands, and changing the iron ingots to nylon ingots. The improvement of these equipments increased the speed to 160-190 rpm, doubled the stand rate, and greatly improved the product quality. In addition to webbing, weaving can also weave rope. Tubular belts are just one of them. Those with a diameter of 1 to 4 centimeters can be called ropes or ropes, those with a diameter greater than 4 centimeters are also called ropes, and those with a diameter greater than 40 centimeters are generally referred to as cables or cables. In 1989, the industry introduced Japanese eight-strand cable production line equipment, and produced polypropylene eight-strand cable in the second year. The products produced by this equipment won the National Science and Technology Silver Award that year. 3. Knitting In the 1970s, knitting warp knitting and weft knitting technology has also been widely used in the webbing industry. In 1973, the trial production of knitted nylon wide belt was successful. In 1982, the industry began to introduce Italian crochet machines. This new type of crochet machine has advanced technology and a wide range of production varieties. It benefits the most in the production of thin decorative belt fabrics, such as lace, elastic belt, window screen, decorative belt and so on. Its basic technological process is: bleaching and dyeing – winding – weaving – ironing – packaging.
Before the 1970s, the fire hose tube blank was woven with a flat loom, but because the technology has not been completely improved, the diameter of the tube blank is greatly deformed and the output is low. In the second half of 1974, a research and development team organized by the industry was specially developed for the production of fire hose blanks. According to the principle of knitting, warp and weft weaving is adopted, and the uninterlaced warp and weft yarns are connected into a whole by using the cylinder and sinker arc of the loop-forming yarn to form a warp and weft-inserted tubular knitted fabric. This evolved into a plastic-coated outlet pipe and a high-pressure fire hose.
Post time: Sep-07-2022