2019 innovative fabric production enterprise internship summary report

Shandong Nanshan Rongfang is one of the largest manufacturers of worsted fabrics in China. It is located in the Nanshan Industrial Park on the coast of the Bohai Sea and has a high reputation in the fine spinning industry at home and abroad. Adhering to the concept of “high starting point, high standards and high requirements”, the company has made great strides on the road to international first-class enterprises. Nanshan Rongfang has two branches of the second phase of Jingfang Phase I, with a total of 4,000 employees, a 13,000-ton strip production line, an 800-ton arcano production line, a 2 million-meter silky wool production line, and a 1,500-ton silky wool shrink-proof production line. Wool XX million meters. He was awarded the honorary title of “China Famous Brand” and “National Quality Exemption Inspection” and obtained the “International Wool Bureau Pure Wool Identification”. He was listed as the national high-support pure hair product development base. The third phase of the plant is currently undergoing the final stage of equipment installation and commissioning. It will be put into production in May. The third plant will use domestic first-class machinery and equipment and adopt the international leading management mode, which will become a model of China's worsted production. Nanshan's production efficiency and product quality have reached new heights.

Nanshan attaches great importance to the application of science and technology in production, continuously purchases advanced production equipment, adopts the management method of fine quality, and introduces a large number of highly educated and high-quality talents to inject vitality into the enterprise and improve the competitiveness of the enterprise. I am very honored that I have the opportunity to practice in Nanshan Jingfang. This study has benefited me a lot.

But unfortunately, due to the problem of teaching arrangement, my time at Nanshan Jingfang is very limited. I can't systematically learn all aspects of knowledge, but I can only familiarize myself with the production process and process status in the workshop. But even in such a limited time, I still learned a lot of knowledge, greatly improved my cognitive level, broadened my horizons, and also made up for the inadequacies of previous theoretical studies.

My internship is mainly carried out in the second workshop of Jingfang , and the workshops of strip dyeing, pre-spinning, post-spinning, weaving and finishing are internships one by one. My main task in the workshop is to familiarize with the process and production equipment and observe the easy occurrence in the production process. Problems and solutions, identification and production of learning process sheets.

The first workshop of Jingfang No. 2 Factory is a strip dyeing workshop. The strip dyeing workshop has four processes of grouping, extrusion, dyeing and re-washing. Nanshan Rongfang does not have the pre-processing of wool in the industrial park. Instead, it imports the finished tops directly from Australia and finishes the dyeing of worsted fabrics. Therefore, in Nanshan, the recycling of waste is highly valued. In order to facilitate transportation, the tops of the factory have become relatively tight, which is not conducive to direct dyeing. Therefore, the first process in the dyeing workshop is loose. The workshop uses domestic b412 to rewind the hair mass into a looser mass. The weight of the hairball is determined according to the needs of the dyeing process, generally between 2.5 and 4 kg. The second process is extrusion, in which the hairballs are placed in a gauze bag and then placed in a dyeing cage for longitudinal compression. A dyeing cage is generally filled with 4 hairballs. The dyeing cage is then hoisted into the dyeing tank by a crane for dyeing. The dyeing uses high temperature and high pressure dyeing machine to improve the speed and quality of dyeing. The operator inputs the process parameters into the computer according to the process curve of the machine. The computer can automatically control the operation of temperature rise, cooling, water supply and drainage, and the automation is very high. Depending on the process, the temperature, pressure, and time of dyeing vary, but are generally controlled at 50 ° C to 100 ° C, 0 mpa to 5 mpa, 5 to 8 hours. The last step in the dyeing workshop is re-washing. The main task of re-washing is to wash off the floating color on the fiber, to refuel the fiber and to dry the top. There are three washing tanks in the rewashing part of the washing machine. The first tank is filled with detergent, the second tank is washed directly with water, the third tank is added with wool, and the drying section is heated by hot roller. Machine, water vapor is passed through a hollow drum and heated to dry the top.

The second workshop is the former spinning workshop, whose main processes include mixing, carding and roving. The purpose of the mixed strip is to match the hair. The machine used is b412. The general draw ratio is equal to the top and the number. After the hair is finished, the strips are subjected to 11 passes, of which the fourth one uses a comber, the other uses a card comb, and some of the combing processes need to be refueled, in addition to static electricity and friction reduction. After the sixth carding, the tops are broken into groups and weighed to determine the amount of material used, which is convenient for timely adjustment of production. In the combing of the tops, it is necessary to extract a certain amount of tops from time to time, and check the wool. If there are too many granules, the machine should be adjusted. After the combing is completed, the slats can be spun on the roving machine. The former spinning workshop uses the French nsc fm041 leather plate roving machine, whose main tasks are drafting, twisting and winding forming. The former spinning laboratory mainly measures the resurgence and drying of slivers and rovings.

The third workshop is the post-spinning workshop, which includes the steps of spinning, winding, doubling, and double twisting. The spinning process has 24 sets of warp and weft fb505, 21 sets of zinserrm450, and a total of 212,688 spindles. The winding process uses the German schlafhorstac 338 winder, equipped with an electronic yarn clearing device, which can automatically detect the yarn defect and the unevenness of the strip, and cut it off, and then automatically find the broken head and splicing. The parallel process uses the Swiss ssm dp-y parallel machine. The double-twisting process uses the saurer vts-09 double-twisting machine. There is also a Swiss saurer ef240 wrapping machine in the workshop, but it is not in use. The post-spinning laboratory mainly measures the length and weight of the spun yarn, the resurgence, the twist, the strength, the strip and other technical indicators.

The fourth workshop is the weaving workshop. The processes in the weaving workshop include steaming, warping, reversing, penetrating, weaving, and blank inspection. The spinning mill adopts the process of steaming the yarn after winding, and the main purpose of the steaming yarn is to eliminate the internal stress of the yarn, eliminate static electricity, and fix the yarn. The pure wool or wool blended yarn is generally 40 to 60 minutes in the process. The warping process uses Swiss Bernange warping machines. Each warping machine has a capacity of 400. The warp yarns are layered and worn. This kind of wearing method makes the yarn layer clear and convenient for the operator to operate, but it is easy to cause different There is a difference in the tension of the layer yarn. When the shaft is inverted, the yarn is waxed to reduce the hairiness and reduce the friction between the yarns. For the yarn with a particularly large hairiness, the yarn should be cold-stained to append the hairiness. Wearing a comprehensive is a test of proficiency, and there is not much technical content in it. Next is weaving. The weaving workshop of the second factory has 129 picanol flexible rapier looms, 45 somet rapier looms, one donier rigid rapier looms, and three air jet looms. After weaving the machine, the grey cloth will be sent to the blank inspection workshop for blank inspection. The blank inspector will quickly inspect the grey cloth and mark the more serious weaving with chalk to facilitate the finishing of the workshop. In the weaving workshop, I also learned the production of the weaving process sheet, mainly based on the total design sheet to calculate the process parameters required for weaving, such as the total number of warp, the number of edges, the edge of the cloth, the silk flower, etc. There are some parameters such as the width of the upper machine, the density of the upper machine, the warp and weft, etc. can be directly copied from the total process sheet. I found in the internship that the actual calculation of the process parameters in the factory is different from the theoretical calculation on the textbook. For example, when calculating the total number of warp, the number of edges should be corrected, because the width of the cloth produced by the batch has Clear regulations, such as the Nanshan worsted factory, the width of the edge of the cloth is between 1.45cm and 1.55cm, the edge of the cloth beyond this range needs to be corrected by changing the number of edges of the cloth), the number of yarns after the correction Plus the number of yarns in the body is the correct total number of warp yarns.

×?oóò???3μ??ê???àí3μ??£???àí1¤ò?á÷3ì°üà ̈éúDT?¢é????¢?'???¢?ó??? ¢o??é?¢?D?ì?¢?????¢??êa?¢?11a?¢kdμè?£éúDTê??÷2??ú???úoó?±?ó??DDDT2 ????÷òaê?è¥3y??á£ó?òìé??????£é???ê?ê1?ˉ??ò???·ù×′ì??ì?ùí ̈ 1y?e??é?·?£?é?è¥?ˉ??é?μ?èT??£?μ?2?×?é???????éí£?ó?óú?ó1 ¤1a????á??£?ü?éò?ê1????1a?à£????·???ú£???éù?ˉ???e?ò£?óDà? Óú?ˉ??±??¢???¢í|?¢??·???μ?·¢?ó£?μ?ò2ò×ê1?ˉ??'?2ú£?ó°?ìè? é??ê?T?è?£????μ???μ?ê????ˉ?ˉ?? ̈?′è¥?ò?????¢oí??óí?¢ ??á??¢é????ò?¢óí??μè£?ó??????ˉ??ê??D?£?????éò?ê1?ˉ??o? ?è???ó?¢×é?ˉ???ü?¢±í??èT??'?éú?¢?ˉ??òt±?£?2¢ê1?ˉ????á| ???ó£?ê??Dèáèí·á?ú?£?t3§?±?ó???'??o?2¢3éò?μà1¤Dò?£?ó??ê?è??? ?ˉ???úò?? ̈??á|ó?êaèèμ?×÷ó???£??è? ̈3?'?ó?D?ì??£o??éμ?×÷ó? ê?ê??ˉ??'?μ?òa?óμ???3±oíà-·ù? ̈Dí£??ˉ ???ú?1è?μ?ê±oòóDò?? ̈á?μ?3??1?£o??éoó?ˉ??Dè?D?ì£??ú?aà??ì?é? ˉ????àíμ?D§1?£?2¢?ù'?DT2?£̈êìDT£??£??êaê?°???ò??í×'??è÷?ú?ˉ ??±í??£?ò?μ÷?ú?ˉ??μ???3±?£?11aê?ò?èèμ??eê?°??ò??°??ò??? ???é×???á|?é?ê£????ˉ??ê?ò??2?1?ò?ˉ1£????÷òa??μ?ê?ê1 ˉ??±í???????¢??é?ê??D£?±í??1a?ó?£??àí3μ??3yá?óD?úDμ?11aía£??1óDμ? ?1?kd?íê?????£??éê1?ˉ??3?'??è? ̈?¢?-?3? ̈???¢????1a?ó?¢èá ?ˉéí1??¢μ÷??êa?è?£

?aò???ê±??μ?êμ?°£?è??òá??aáêêμéú2úμ?×'??£?ò?D?àí???§?°?Dò??± §§è?×??òμ??êìa???ú?íè??aàê£?Dí?àòμò?á??aμ????÷ò2?ü?óμ????ú?÷á?? £?°??é?μ?à'?????3£????a'?ê?òa1aDD?±£???óDàí??ó?êμ?ù???áo?£?? ò??2??ü???yμ?è¥è??aê????£