IRON KNIGHTS METAL WORKING

Needle Industry Development Road

   Industrial sewing machine needle in the sewing process occupies an important position, good or bad the quality of machine needle, sewing a direct impact on the effectiveness and sewing quality, so the development of machine needle sewing machine power industry is our goal to achieve an important step. China's industrial machine needles enterprises are mainly concentrated in the areas of Jiangsu Nantong Qidong and Haimen area, the other in Guangdong and other places are also scattered. Well-known in the market-made machine needle Needle Co., Ltd. of Jiangsu Flying Tiger Tiger production machine needle, needle Co., Ltd. Nantong crane machine crane machine produced by needle, needle Co., Ltd. Jiangsu, produced by Max Max machine needle, Nantong Jiahui Sewing Equipment Co., Ltd. produced by Singer machine needle, needle Co., Ltd. Nantong wins Italian production of small Tam piano machine needle, needle Co., Ltd. Nantong, China and Germany produced by Qin brand machine needles, etc. Needle brands.

    It is understood that our current domestic and imported machine needle Needle big gap in the quality, the price is also very poor, made of industrial machine needles the market price of roughly 0.5 yuan / bag; German machine needle quality and the best, most expensive, the average price is about the same price of Chinese-made machine needle 10-12 times; Japanese machine needle times, about the same price of Chinese-made machine needle about 10 times; to TNC, multi-machine needle specially designed for on behalf of the prices of Taiwan-made machine needle is about the price 7 to 8 times. Although domestic Needle occupy large market share, but the main advantage of relying on low prices make up for deficiencies in quality. Why are foreign-made machine needle and similar products have such a disparity in the price gap, in terms of quality in the end, what is not, should be on how to improve the quality of Chinese-made machine needle is that we in the industry are studied.

  

    1, domestic machine needle and foreign similar products and major gaps

    Comparing our study found that domestic and imported machine Needle Groz-Beckert needles, such as Germany, Japan, organ, etc. Needle products, there are three major gaps: the gap between appearance of identity. Foreign Needle, the same type of needle and needle look exactly the same as the absence of any difference between the naked eye, respectively, while the domestic machine needle needle slot relative to the location of pinhole fluctuated, often with the naked eye can pick out the difference between the needle and needle come. Gap between the eye of a needle hole finish. Chinese-made machine needle eye of a needle-hole than the foreign machine needle is smooth, easy to break when sewing. The stability of mechanical properties of the gap. Domestic machine needle in the deflection, hardness, wear resistance and so on to achieve or come close to the level of foreign machine needle, but the large fluctuations in the value of these properties, resulting in the overall level of quality of machine needle advanced than similar products.

    Second, similar foreign-made machine needle and the reasons for the gap between product quality

   (A) the appearance of the identity of the reasons for lack of

    Appearance of the product machine needles trough the main difference is the position relative to the pinhole, which is due to needle-made machine slot milling process and not the same as the foreign machine needle caused by the German Groz-Beckert Needles, for example, Grotz Machine pin is pin slot milling CNC milling machine, each time only one milling machine needle, the product of the shape and position accuracy is high, thus the appearance of the identity of a very good product. Domestic Needle now actually use a simple manual feed milling up and down, and in order to meet takt time, milling machine to mill rounds for each machine needle, coupled with hand-arranged machine needle, so the benchmark process is inevitable with the error, which Needle and causing inconsistencies between the slot position, thus affecting the appearance of the product identity.

 

   (B) the eye of a needle hole smooth defect causes

    The sewing machine needle hole is formed by die stamping, domestic machine needles generally use a stamping molding, foreign high-grade machine needles are currently using the second method of stamping molding, namely, punching hours of coarse and fine red red, so out of the hole higher accuracy, whether it is a stamping method or the second pressing France to go through subsequent finishing processes, to remove the burr hole to the final shape. Stamping die from the machine needle manufacturer to be developed, Chinese-made machine needle mold material is generally high-speed steel, the hardness and wear resistance of this material is not strong, die in use for some time, the surface will produce minor wear, finish die down , pinhole wall glitch more subtle.

   The follow-up finishing deburring process, a common practice in domestic enterprises is to wear a thin wire in the needle's eyes, and then clusters of the machine needle placed in home-made vibrating machine vibration, the use of steel wire and pin-hole wall friction effect of eliminating glitch. However, this is called eye wear eye and jump process approach and not completely within the eye of a needle to get rid of glitches, and the special expenses of labor, because it relies on artificial one to wear eye wear to wire up one of the two Road to the Burr manual process to achieve the production share of the total number of front-line employees more than 15%. Groz-Beckert and other foreign companies is now soaked with chemical solvents to remove the machine needle pinhole glitches, effective, but also saves time and effort.

   (C) the reasons for the gap caused by the mechanical properties

    Caused by this issue there are two main reasons, First, the current selection of raw materials made Needle mostly domestically produced high-carbon steel by the domestic iron and steel smelting industry level in the same grade of steel, the domestic production of products and Germany and other European and American production there are differences in the performance, which led to this as the raw performance of the machine needle is not very stable. Second, domestic machine-pin device is relatively simple, some impact on the quality of machine needle small part of intrinsic processing rather vague, such as machine needles the whole grinding, grinding sharp, bright polishing processes such as grinding, using a grinding wheel is the same hardness, In fact Needle in quenching before and after quenching the hardness is not the same choice of grinding wheel should also be different, otherwise, the machine needle shape is difficult to achieve the design precision. Foreign high-end machine needle in it, there is attention to grinding wheel, abrasive belt grinding and cutting tools such as the selection is also very particular about.

    The third is due to the different domestic and international pick-pin technology, resulting in differences in product quality machine needle. Germany's machine needle industry is a high degree of automation has been adopted automatic needle sorting machine automatically processed through the sensor has finished the machine needle and computer data storage standards for machine needle contrast, distinguish between machine needle qualified or not, and failed machine needle removed, thus ensuring the overall quality of the factory machine needle, and the present machine needles for all domestic enterprises are from the visual quality inspection machine needle qualified staff or not, thus making the quality of machine needle there is a big uncertainty, substandard goods enter the market risk is quite serious.

    Third, the domestic machine needle main issues facing companies today

    Needle-made and imported machine needle quality existence of the gap, in addition to domestic enterprises in the machine needle materials, technical equipment and other objective reasons, but also to the overall quality of companies is not high, self-building is slow, machine needle industry, factors such as the external development environment, a relationship disorder.

    

    At present, China Needle common problem enterprises are:

   (A) technology is weak, lagging development of qualified personnel

  Needle domestic enterprises are only a few experienced older workers, few Jidong theory and practice experience the true sense of the scientific and technical personnel. As the needle small-scale industry as a whole, the state does not have the professional personnel training system, the domestic needle industry researchers, or whether it is an acute shortage of skilled workers and another due to needle industry, technology and equipment, the special nature of the community almost no readily available technical staff, the general machinery professional and technical personnel and technical workers, even when entering this area, talent cycle is very long, to go through a long-term study and training can be employed, all firms want to enhance the technical force, enhance corporate personnel structure must satisfy two conditions: on the one hand the need practical, willing to delve into the technical people are willing to come in, the other hand, enterprises must be willing to invest, are willing to train.

    Currently needle enterprise technical improvements and equipment renovation mostly through the hiring of technical personnel of some of the old state-owned enterprises or research institutes to carry out that domestic enterprises want to further development of the needle, professional engineers and technical personnel training efforts have to strengthen otherwise the enterprise product will never have a big leap forward in innovation and quality can only be engaged with the mimic in the back of advanced enterprises. Therefore, how to ensure the sound development of the workforce and benign structure, is an urgent need to solve a business issue.

   (B) needle devices has become prominent, the need for automation and precision manufacturing process of transformation of machine needle more than a dozen working procedure, a variety of types of special machinery and equipment, in addition to cold forging, and quenching equipment available from a limited number of factory direct purchase of foreign The remaining equipment, including some test equipment required to develop enterprise itself or the equipment, since most companies do not have the machinery of professional craftsmen and engineers, as well as by the level of China's machinery manufacturing constraints, my needle accuracy of existing equipment companies do not high, all devices can only be basically completed process design requirements, the product of local details of the deal are relatively rough, such as the slot milling process the product error is greater, all the grinding process are ineffective dust collection problem exists, the more dust workshop large, the product appearance quality finish and so on greater impact. Comparison of foreign advanced machine needle enterprise system in China can be found in the functional design of needle devices and manufacturing processes all have a big gap. Therefore, raising the overall level of needle device is a needle enterprises bigger and stronger companies will fine road.

   (C) enterprise quality assurance system needs to improve the

    Although the majority of domestic needle enterprises certified by ISO9000 system, but the actual internal quality system is not perfect. Needle quality can be divided into inside and outside the two major categories, the appearance of the product quality, including the appearance of the product size, shape and position accuracy, surface finish and so on, the other is the intrinsic product quality, including products, wear resistance, hardness , deflection properties, corrosion resistance and so on, for the appearance of quality control, the domestic enterprises to adopt needle the size of artificial visual and simple way to combine measurement tools, for machine needle internal quality control, companies generally do not have any good measures, better The enterprises will built a not very standard laboratory of the machine needle to make some simple tensile strength, deflection and other performance testing, but the product failed to do with the production line of continuous testing, most other companies in this regard little as. Domestic enterprises, quality control personnel have not made any formal training, almost all companies do not have a full-time Quality Engineer is responsible for product quality control system operation, as well as the quality of the product to make a detailed analysis of the problem. Needle advanced enterprises with foreign companies want to line their own internal development and improve the long way to go.

   (D) Needle product standards need to be sorted

  At present, China is only one type of industrial sewing machine needles prepare standard QB/T2035, because the domestic needle company's products in recent years a lot of imitation of foreign products, they are the product name and specifications of models with similar foreign products on the market in order to QB/T2035 standard machine needle products named but is very small. Because there is no product standard industrial machine needles, making machine needle products have no market access threshold, machine needle of Quality Supervision, also out of the question; another machine needle products, non-standard conditions have restricted the corporate machine needle, needle bar, as well as machine parts enterprises Company's new product development, because there is no uniform standard can be a reference to needle and parts business enterprises are not easily change their shape size and shape of the product, so that machine needle with Needle-related products and the needle bar and so on to zero Parts For a long time there are no major independent innovation can only blindly follow the imitation of foreign advanced enterprises.

    4, machine needle quality improvement measures for Thought

    Overview of the entire machine needle industry in China can be said to exist side by side hope and hardship. Although our machine needle corporate market share is large, but we have a clear understanding that we occupy only the low-end market, our business the inadequacies of machine needle a lot of machine needle enterprise should have a strong sense of crisis, Taiwan has many special machine needle factory in Zhangzhou in Fujian, the German blue lions, Rhine machine needle to move production bases to India, Germany, the domestic enterprises are constantly machine needle merger, consolidation, these foreign enterprises purpose is very clear, is to reduce manufacturing cost, enhance their market competitiveness. When one day we no longer cost-effective machine needle has an edge, that is we have lost not only its market share, it is possible that we will lose the machine needle in this industry. Society as Needle sector in steering body, but also need to grasp the overall situation and make scientific planning and the introduction of specific measures to help enterprises to improve product quality, enhance the grade of machine needle.

About the Author

I am an expert from China Crafts Suppliers, usually analyzes all kind of industries situation, such as hooded cat bed , how to whitewash furniture.

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